JPS5877077A - Tape draw-out and storage mechanism of adaptor for small-sized cassette - Google Patents

Abstract

PURPOSE:To obtain the titled mechanism which is suitable for a loading adaptor to a VTR, by drawing out a tape with an arm interlocking with a control lever, and permitting the transmission of the rotary movement of the control lever to a take-up reel of a small-sized cassette via an oscillating arm. CONSTITUTION:When a small-sized cassette 1 is loaded into an adaptor 2, guide posts 5 and 6 move into cut areas and set at the position shown by a dotted line. Under such conditions, a lever 23 is turned a little bit counterclockwise. As a result, arms 3 and 4 which are coupled to a gear 18 of a transmission mechanism via wires 16 and 17 and springs 19 and 20 turn outside to draw out a tape to the position 43. Thus the tape can be loaded. When the tape is stored, the lever 23 is turned a little bit clockwise. Thus an oscillating arm 31 turns from its control position as shown in the diagram. Then a gear 30a engages a gear 27. As a result, the rotary movement of the lever 23 is transmitted to a roller 26. Then a take-up reel 34 of the cassette 1 is turned in the take-up direction. Thus the tape is stored.

Description

[Detailed Description of the Invention] The present invention relates to an adapter for small size 11ix x 7 bits that is outside the current standard for use with current VTRs. Regarding the mechanism.

Progress is being made in making VTRs smaller and lighter.

There is a limit to downsizing until the size of the existing cassette is maintained.・It is especially necessary to have a small swing outside.
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First of all, we plan to downsize the recording device, and when playing, we will use the currently popular Beta, 71! VTR such as El method
It is being considered that the cassette can be loaded into a small cassette adapter (hereinafter referred to as the adapter) for playback. In this case, the adapter may be required to transmit the rotation of the tape cassette to the reel of the small cassette.The present invention has been developed in view of the above points, and has an effective tape drawer storage mechanism that can be used in the adapter. Embodiments will be described below with reference to drawings showing embodiments. Figure 1 is a schematic perspective view showing the small cassette and the adapter; A cross-sectional view of the adapter with the W'# set accommodated, Figure 114 is a bottom view of the 111 gear (18) interlocking with Reno (-1,
Figure F5 (a) is an exploded perspective view of the area around Reno (-(2), -1
Figure 116 is a partial plan view showing the state where the tape is drawn out, and Figure IF7 is a schematic plan view for explaining the operation of the oscillating arm. Regarding the shed cassette. Since it has no direct relation to the present invention, a detailed explanation will be omitted. ・Small cassette (11 has a notch on the bottom as shown in Figure 1, and 9 reels of 1 winding are partially exposed. The drive mechanism inside the adapter 12) can drive the take-up reel. Also, at the bottom of the small cassette, there is a bin 1000 U-Lar for loading, which is not visible in the figure but is similar to the current cassette. There is a cutout through which the Tensilan arm etc. can enter. As for the retention S of the magnetic surface of cassette 1, VT is the same as in the current cassette.
R, or the structure of the adapter 121 in the state in which a small cassette is inserted, with the front lid being released when it is inserted into the adapter f: al12
Explain according to the diagram (the top middle part of the adapter is removed).
The drawing number (3) + 41 is a tape drawer arm (hereinafter referred to as the arm), and the O arm 13), which is equipped with guide posts (5) and (6), respectively, has two stoppers 17) + 81.
Center Wc & gl on the axis with f'L7 planted in the adapter between
Normally, the stopper 17 is set by spring +91.
) and is in the state shown in Figure 1. Arm 14) is also fixed guide post (1 (I and stopper un+5at-
It is installed in the adapter and can be rotated around the 9th axis of 7'L, and is biased against the fixed guide post rib by a spring (13) to form the shape a shown in the figure.
t- is taken 0 In this state, if you insert the small cassette (1) t-, the guide post +5) (6) will be placed under the small cassette -
The tape enters the notch and can be pulled out.

The holder 3 is a locking means for fixing a small cassette.

Through hole I allows entry of the VTR reel stand.

Hut cassette supply reel stand vTRK! 1. Figure a9 is a reel holder that defines the position of the take-up reel of a small cassette and rotatably supports it. 0. Arm (31141 is a wire lL like piano wire).
A part of the O wire ae connected to the gear (18) is replaced with an elastic body such as a coil spring Q9GII. The gear wheel 1 is interlocked with the lever (2), and the lever wheel can be operated from the outside as shown in the figure.
9. In the state shown in Figure 2, the notch (1
8a) To the vc spring: the first biased counterclockwise
The gear stopper is engaged and locked. Figure IHI shows the 10th gear stopper driven by the take-up reel stand of the VTR.
- The third gear 4 is formed in the protruding part (broken line part), which has 9 spaces into which the tip of the reel stand enters.
The position of the 20-roller and the transmission roller @IICL is regulated, and the diameter of the 10th roller (2) that constitutes the winding reel drive mechanism for the small cassette is at the bottom of the 9th reel for winding the small cassette. O is set to be the same as the diameter of the roller.
Reel in the adapter (1st c1 - Raso and 3rd gear -
) is almost the same as the reel in a regular cassette, except for the shape, and the 5th gear is 2 gears (30&).
A small 2nd gear (3011) is provided on the underside of the large 2nd gear (30&) which is meshed with the 2nd small gear (3011), and 1 both rotate together. Although not shown, I! 2 gears large (30a) and small (
The oscillating arm (2) on which the +) is pivotally supported on the lever (
Same as 2) - ring metal center [g2 gear large (30a) meshes with third gear (2) #! Attach the penetrating arm to the position shown in Figure 2 and the stopper for the tea arm (not shown in Figure 1).
The protrusion (31a) can rotate between the positions where it comes into contact with the protrusion (31a).

Works together with the second gear as a means of transmitting the rotation of the lever (23) - In the right side view and (to) left side view of Figure 2, the spring 191113 etc. are omitted for ease of viewing the drawings.
In the figure, the small cassette (1) is the locking means fi3 [JS,
Locked state or l! The oscillating arm (aη) that was not visible in Figure 2, and the stopper for the poor shooting arm (to) are shown.・2nd gear large (30m) and small (30b)
is biased by the coil spring (to) #C to the oscillating arm, and serves as a load for the t-oscillating arm (2) to rotate (a load for the rotation of the 2nd gear).

The take-up reel (2) of the small cassette is supported by the reel receiver as described above, and the reel lower roller (2) is pressed against the transmission roller holder, and the winding reel (2) is transmitted by the 10-roller. Transmission roller 4 and part of the 10th roller are cut 9 of a small cassette.
It is entering a missing FPG. In Figure 3, the leaf spring for holding the reel of the small cassette is omitted. Also, the gear part of the 10th gear (j [3 gear @) is similarly biased between the leaf springs and the lower part in the figure. However, they are omitted in the 1IE5 diagram. - The wire aefi id support, first gear stopper (2), etc. are omitted to make the diagram easier to read.0144
The figure shows a bottom view of the gear 1. As shown in the figure, the gear 1 is connected to the lever (L81W- has teeth (18a) extending approximately 90 degrees. This is the lever (2).
This is because the rotation is approximately 90WCa, so there is no need for more than that.There is a notch (1Bm) (18b) in the heavy peripheral part where the tooth (18c) is formed.

The first gear (180 contribution means, therefore, the fixing means of the lever (2) is formed together with the above-mentioned gear stopper), and if the gear 111 is provided with teeth around its entire circumference, the gear If there is a partial pipe stage with a notch t in the upper surface or the lower surface of the wire 061 (in is fixed rt, Jl 9
! In addition to the starting point, the swivel arm regulating protrusion II continues to be in contact with the stopper for the swivel arm
R ton is clearly indicated.

The exploded perspective view of FIG. 5 (the shape of the gears is omitted) shows the structure around the 1-relever force.

Rebellion bar 4 and oscillating arm @Hirodo - The III gear stopper (2), which is supported by the shaft 1, can be rotated axially Im!
It is supported by the spring (2) VC and is biased in the counterclockwise direction. 1 [2 A shaft that rotatably supports the large gear (30a) and small gear (3Q'b) is installed. Figure -) shows a view of the bottom surface work 9. For the take-up reel of a small cassette, only the reel lower roller ■ is written, and the reel receiver a9 is omitted. 0 Next, we will explain the operation of the tape drawer and storage mechanism. do.

When inserting the small cassette (11) in the state shown in the IZ diagram,
The guide post [51 (61) has entered the notch and is in the position shown by the broken line in Figure 6. (The position of the tape is also shown by the broken line.) In this state, turn the lever (2) counterclockwise.・The arms +31141 are each connected to the wire IItlη1 elastic body a9mrcxvuta1 gear-, and follow the rotation of the lever so that they rotate outward at the same time to pull out the tape.◎Finally, lI6 Take the position t shown by the solid line in the figure.The elasticity of the coil spring (IIcII is 1) is the arm (31141 is the stopper +81 (Il
Crimp to l is identified rL, and also to the lever) Stroke errors are absorbed.The tape can be pulled out to the adapter (21 yen predetermined drawer position-) and the drawer can be loaded.
The N1m car stopper has a notch (1
8alK is engaged. Also, when the rotation of the lever wheel is completed (when the lever wheel has rotated approximately 90 degrees), ti
, 1l11 The notch (181)) of the wheel is engaged with the first gear stopper 0 The biasing force of the first gear stopper 4 is A. The lever (2) is set so that there is sufficient resistance, and the lever (2) is manually operated.
When rotating, that is, when being rotated with a certain amount of force, the stopper and notch shape #C are designed to release the nib block. Pay attention only to the movement of arm 13) (4). Then, when storing the tape, the operation is completely opposite to when pulling out the tape. However, the difference from the tape drawer is that the tape is not stored simply by the movement of the arm.

It is necessary to rotate the reel in the take-up direction. Because of this, the tmn arm @ has been modified so that only the clockwise rotation (return wh) of the lever (2) is required for the take-up reel of a small cassette. The tape is stored in a small cassette.Next, the operation of the swinging arm (2) will be explained according to the schematic plan view of the box in Figure 7. Condition 1 before n lever 4 is rotated. A state in which the tape has been pulled out and a state in which the tape is being stored are shown.

The first gear has the same shape as in Figure IN4, and only a portion of the second gear (30a) is shown and the rest is omitted.In the state before the loading bar 4 is rotated, it is H). Like 5th gear (
2) and the 2nd gear large button 1) are meshing ・Reno (-) When the 2nd gear large button 1) is engaged, the broom 1 tooth table cod and the [2nd gear small 601] are meshing, so there is no possibility of a tangential force. I'm shaking my head - 50 years of strength I
- Rotate in the same direction as 4. Definitely swing arm-1-
To rotate: 2nd gear large (30a) and small (30a)
t+) is biased against the coil spring &lK gear arm rn, and applies a load to the rotation of the gear 2. The rotation of the swing arm (2) is caused by the swing arm stock. A-
11 IC! It is regulated. This state is shown in Figure t-1117 (b). As shown in the figure, the position where the swing arm is regulated is such that the engagement between the third gear (2) and the second gear large (301L) is completely released, but the swing arm is only slightly disengaged. It is set to a certain 15. Figure 7 (rumor has it that the lever (2) has completed its rotation).

When pulling out the tape, move the lever @ counterclockwise a little once, and the 11-swing 9 arm (2) will be in the state shown in Figure 7 (→1,
Reel in the adapter (I11 roller 4 and 3rd gear @
) K does not transmit the rotation of lever 4. When the rotation of lever 4 is completed and 1llE1 gear a81 is locked (tape drawer completed), the swing arm regulating protrusion MVC machining G7 is in the state shown in Figure FP]. Therefore, the third gear - (therefore 111
14-ra #) 9. Possible to change within society. It becomes possible to drive the take-up reel (2) of a small cassette by installing the adapter company's current 1T#C.

Figure 7 (c) shows the tape in the middle of being stored. When the lever is rotated slightly clockwise, the swinging arm 9 (b) rotates from the regulation position, and the WE2 gear large (30a) The and JI3 gears come together, and the rotation of the lever completes 1.
The information is transmitted to the a-ra (e), and the take-up reel (■) of the small cassette rotates to the take-up position of 90,000 to store the tape.

10th-lar mt [20-lar (2), transmission roller 4 and l! The 3rd gear (2) meshes with the larger 2nd gear (30m) (VCLF), is supported at 5 points and rotates stably. @The lever (2) is pulled out at approximately 90° I shift.
The diameter of each gear is set so that the tape is completely stored.In the example, the 19 tape drawer etc. was linked to the rotation of the lever (t3). If it can be operated, it can be done not only manually, but also by pulling out the tape and storing the tube. For example, moving a rack-shaped slide to a newly installed gear on the tj11 gear to another gear.
Or if you communicate.

Needless to say.

As described above, one aspect of the present invention is that the arm #C is equipped with a guide post linked to the lever @ to pull out the tape, and the rotation of the lever handles the winding of the small cassette only when storing the tape.
19 transmissions to the reel via the transmission mechanism of the oscillating arm (2), a must-have for small cassette adapters! It is useful because it can realize functions such as

[Brief explanation of the drawing]

Figure 1 is a schematic perspective view showing a small cassette and an adapter, and Figure 2 K) (opening → is a plan view, right side view, and left side view showing the structure of the adapter). The IN3 figure is a cross-sectional view of the adapter for the small power 7-unit storage form, and the 111
Bottom view of 1 gear! ! Figure 5 (a) is an exploded perspective view of the vicinity of the lever, -) is a perspective view of the second gear member seen from the back side. The figure is a schematic plan view to explain the operation of the neck cutting arm. 11# set, (21...adapter,
(3) (4-tape drawer arm, (5) (6)
- Guy F4 stroke, fin Fig. 1 - Wire % cod (to) - Coil barre (elastic body), or - 1st - 3rd gear, (to) - 111 - 2, (2) - 2nd a - Two, (2) - transmission roller, (to) - winding tool lower low two, Sanchin - neck twisting arm, (2) - neck twisting arm stopper.

Claims (1)

[Scope of Claims] (11) An operation section that can be operated externally and moves between two positions, two tape draw-out arms that pull out the tape to a predetermined position in conjunction with the skeleton operation section, and the first operation section. A tape drawer storage mechanism for a small cassette adapter equipped with a transmitting means tube that transmits only the return movement of t to rotate the core take-up reel in the winding direction. (2) The operating section is a lever, and the lever is in two positions. The transmission means is connected to a moving first gear, and the interlocking of the arm and the lever is done by a wire fixed to the first gear and the scissor arm, and the transmission means meshes with the first gear. A second gear that can mesh with the second gear small and the third gear of the take-up p reel drive mechanism.
Gear carpenter Yanaru Uta 2 gears are rotated by a load pipe and an axis! shi, the number 1 song in which the 8th gear and the 2nd gear mesh with each other -
and the above-mentioned depth 1 so that it is possible to shift between the two positions where the engagement is released.
A tape drawer storage mechanism for an adapter for a small cassette described in the article of the n-senhan Akane series, which is a swinging arm supported on the same axis as the leprosy wheel. 3) The tape drawer storage mechanism for a small cassette adapter according to claim 2, wherein at least a portion of the wire is a frame elastic body. (4) The above Jl [1 gear has teeth formed over an angle fK that is approximately equal to the turning angle of the lever, and the portion where no teeth are formed has two prongs that engage with the rC first gear stopper. A tape drawer storage mechanism for a small cassette adapter according to claim 2, wherein