JPH02276076A - Adapter for small tape cartridge - Google Patents

Abstract

PURPOSE:To smoothly mount an adapter main body on a deck and to prevent the damage of an open/close cover by maintaining the open/close cover on the aperture top face of a housing in a prescribed closed posture. CONSTITUTION:When an open/close cover 35 is upward turned, a small tape cartridge 2 can be housed from an upper part to a housing 25. Next when the aperture top face of the housing 25 is closed, the closed posture of the open/close cover 35 is held by a closed cover locking mechanism so as not to be unexpectedly opened. In such a way, in the closed lock state that the aperture top face of the housing 25 is closed by the open/close cover 35, although a gap is generated between the internal surface of the open/close cover 35 and the top face of the small tape cartridge 2, a floating regulating member 40 provided inside the open/close cover 35 fills the gap, pressures the top face of the small tape cartridge 2, the pressure regulates the floating of the small tape cartridge 2 inside the housing, and suppresses the cartridge to the prescribed posture. Thus the open/close cover 35 is prevented from being damaged due to the unexpective open operation or from being insufficiently mounted on the adapter main body 20 on the deck.

Description

[Detailed description of the invention]

The present invention relates to a small tape cartridge adapter that allows a small tape cartridge to be loaded into a large tape cartridge deck. This type of adapter has already been proposed, in which a small tape cartridge is stored in a storage chamber provided on either side of the left or right side of the adapter body, which has substantially the same external shape as a large tape cartridge, and then the small tape cartridge is inserted into the adapter body. Use the left and right tape guide members loaded inside to pull out the built-in tape from the small tape cartridge to the front of the adapter body, and the state of the tape wrapping inside the adapter body is essentially the same as that of a large tape cartridge. be identical. After that, the adapter body is loaded onto the deck. In this type of adapter, the problem of the present invention is how to determine the movement trajectory of the tape drawing member when drawing the tape from the small tape cartridge forward into the adapter body. In other words, the tape pull-out member is moved from the original retracted position to the diagonally forward pull-out position, but in the case where the small tape cartridge is stored near the left and right sides of the adapter body, the left and right tape guide members In one case, the amount of movement in the left and right lateral directions is much larger than the amount of movement forward. In that case, if the movement locus of the tape guide member is an arc with a large radius of curvature, the tape pull-out member will protrude forward of the adapter body during movement. This is undesirable as it may cause damage to the tape. When a video tape cartridge is used, a front cover is attached to the front of the adapter body, but if the front cover remains closed, the tape drawer member will come into contact with the front cover. Since this type of front cover must be opened after the adapter body is loaded onto the deck, it must be able to move so that the tape drawer does not hit the front cover when the front cover is closed. This invention was proposed in response to such demands. Embodiments of the present invention will be described below based on the drawings. The illustrated ice candy adapter 1 is adapted to allow a small-sized video tape cartridge 2 to be loaded into a video deck for a normal large-sized tape cartridge. (1) Structure of a small tape cartridge In Figs. 1 and 2, the small tape cartridge 2 functions independently, and the upper and lower plastic cases 3a and 3b are connected with tapping screws to match the lids. Tape reels 5 and 6 with flanges on which the tape 4 is wound are rotatably mounted on the left and right sides of the main body case 3, which is connected with the main body case 3, and tape guide members 7 and 7 are arranged on the front left and right sides of the main body case 3, When viewed from the rear side, the tape 4 is led out from the left feed reel 5 to the front of the case and transferred to the right take-up reel 6.
It shall be wound up. However, the tape reel 5 on the feeding side is mounted on a drive shaft insertion hole formed in the bottom wall of the case to allow a certain amount of free movement in the radial direction, and the tape reel 6 on the winding side is supported by a vertical fixed shaft 9. rotates around the fixed shaft 9, and the lower flange 10
A gear portion 11 formed on the outer periphery of the main body case 3 is exposed laterally outwardly through a notch 13 formed across the bottom wall and the right side wall 12 of the main body case 3. In FIG. 1, a transparent window 15 is formed on the left side of the upper case 3a for visually checking the amount of tape wound on the tape reel 5 on the feeding side from the outside. The main body case 3 is provided with a front cover 16 for closing the front side of the main body case 3 and protecting the tape 4 when not in use. This front cover 16 has connecting pieces 18 and 18 at both left and right ends of the front plate 17.
is extended rearward, and both connecting pieces 18, 18 are externally fitted into the front end recessed portions of the left and right side walls 12, 12 of the main body case 3, and rotatably supported by the bin, and attached to the right side wall 12. A U-shaped spring member 19 holds the front i16 in the closed position with an opening angle of about 45° as the dead center, and in the open position when the front i16 is in the upwardly open position. (2) Basic Structure of Adapter In FIGS. 1 and 2, the Hyouka adapter 1 has at least an adapter body 20 formed to have substantially the same external shape as a large tape cartridge, the so-called VH3 type tape cartridge, and a VH3 type tape cartridge. When loaded into a deck for a type tape cartridge, the deck operates without any trouble. That is, the adapter main body 20 is formed by connecting upper and lower plastic cases 20a and 20b with tapping screws, etc., and has transparent insertion holes 22 and 23 on the left and right sides of the bottom wall 21, into which the deck-side drive shaft is inserted. has been done. A front cover 24 that closes the front side of the adapter body 20 is pivotally attached to the adapter body 20 so as to be rotatable to open and close, and is always biased to rotate in the closed position by a spring member (not shown), and has a locking mechanism for holding the adapter body in the closed position. It is equipped with Since these configurations have the same specifications as the standard VH3 type tape cartridge, details will be omitted. However, the internal structure of the adapter body 20 is different from that of a standard large tape cartridge, and there is no tape reel.
The front side of 0 is open. (3) Storage chamber of adapter A storage chamber 25 with an open top surface is defined at the left side of the adapter body 20 in FIG. 1, and the small tape cartridge 2 can be inserted into and removed from the storage chamber 25 from above. Stored. In FIGS. 3 to 5, the left and right side walls 2 of the storage chamber 25
The inner wall surface of No. 6 has a stepped surface 27 with wide left and right widths at the top, an inclined guide surface 28 that slopes downward from the stepped surface 27, and a vertical guide surface 28 that is continuous with the inclined guide surface 28 and reaches the bottom wall 21. It is formed into a cross-sectional shape having a surface 29. The height of the stepped surface 27 is set lower than the upper end of the small tape cartridge 2 when stored in the storage chamber 25, and the height of the stepped surface 27 is set lower than the upper end of the small tape cartridge 2 when stored in the storage chamber 25. A gap g sufficient for a fingertip to enter is formed between the tape cartridge 2 and the tape cartridge 2. Guide ribs 32 extending from the bottom wall 21 to the height of the stepped surface 27 are provided at rearward positions on the inner wall surfaces of the left and right side walls 26, respectively. In such a case, insert the small tape cartridge 2 from above into the storage chamber 25 with its front and back orientation aligned with that of the adapter body 20, and cut the vertical grooves 33 in the rearward outer surface of the left and right side walls 12 of the small tape cartridge 2. The guide rib 32
guide and fit into each other. When the small tape cartridge 2 is stored in the storage chamber 25, the left and right side walls 12 of the small tape cartridge 2 are supported by the vertical surface 29 to position the small tape cartridge 2 in the left and right direction. Positioning in the front-rear direction is achieved by fitting with. Therefore, the tape reel 5 on the feeding side of the small tape cartridge 2 stored in the storage chamber 25 is concentrically aligned with the drive shaft insertion hole 22 of the adapter body 20. In addition, the inner wall surface of the left and right side walls 26 of the storage chamber 25 has a stepped surface 27 and an inclined guide surface 28 at the upper end to form a finger insertion gap g, so that the small tape cartridge 2 can be inserted as shown in FIG. It can be smoothly stored into the storage chamber 25 while being guided by the inclined guide surface 28. In particular, the small tape cartridge 2 is stored with its top surface one level lower than the top surface 30 of the adapter body 20, but the small tape cartridge 2 can be easily picked out from the storage chamber 25 by inserting a fingertip into the gap g. (4) Opening/closing lid of the storage chamber In FIGS. 2, 3, and 8, the upper surface of the opening of the storage chamber 25 is opened and closed in the opening/closing position 1 [35]. The opening/closing lid 35 has protruding side pieces 36 on the left and right front ends in the closed state.
・36 is pivotally connected to the pivots 37, 37 so as to be able to swing open and close, and a helical spring 38 is fitted to one of the pivots 37.
As shown in Fig. 8, by bringing the left and right projecting side pieces 36 into contact with the upper edge of the opening at the front end of the storage chamber 25, the maximum opening angle is approximately 115 degrees. regulated. The inner surface of the opening/closing lid 35 is provided with reinforcing ribs 39, 39 extending in the front-rear direction at the left and right ends, as shown in FIG. It is reinforced, and when the opening/closing lid 35 is closed on the upper surface of the storage chamber 25, the lower end surfaces of the reinforcing ribs 39, 39 are supported by the stepped surfaces 27, 27. Leaf springs 40 are fixed near the left and right ends of the inner surface of the opening/closing lid 35, and a small tape cartridge 2 is installed in the storage chamber 25.
When the opening/closing lid 35 is closed with the wire plate springs 40 and 4
0, the upper surface of the small tape cartridge 2 is elastically pressed and supported. This pressing point is located on a line connecting the centers of both tape reels 5 and 6 of the small tape cartridge 2, and prevents rattling during rotation of each tape reel 5 and 6. The top surface of the opening/closing lid 35 is connected to the adapter body 20 in the closed state.
It becomes flush with the upper surface 30 of. Therefore, when the adapter 1 is pushed into the deck in a horizontal position and loaded, the adapter body 20
The reference plane on the lower surface (usually four corners) is supported by the deck side, and correspondingly, several parts of the upper surface 30 of the adapter body 20, including the upper surface of the opening/closing lid 35, are supported by members on the deck side. This prevents the adapter body 20 from wobbling. In FIG. 1, a transparent window 41 for visually checking the amount of tape winding is formed in a portion near the left end of the opening/closing lid 35 in correspondence with the transparent window 15. The opening/closing lid 35 itself may be transparent. (51 Small tape cartridge front lid opening/closing mechanism When using the frozen candy adapter 1, the small tape cartridge 2 must be stored in the storage chamber 25, and then the front M16 must be opened so that the tape 4 can be pulled out. Now, a retainer 42 made of a leaf spring is provided near the pivot joint on one side (on the right side in the first rotation) of the opening/closing lid 35 so as to extend forward of the pivot shaft 37 when the opening/closing lid 35 is in the closed state. When the small tape cartridge 2 is inserted into the storage chamber 25 with the opening/closing lid 35 open, a gap is formed between the stepped surface of the right side wall 12 of the small tape cartridge 2 and the front lid 16, as shown in FIG. The engaging claw 42a of the extending end of the retainer 42 is inserted into the vertical gap 43.
shall intervene. In this case, when the opening/closing lid 35 is closed against the upper surface of the storage chamber 25 against the helical spring 38, the front lid 16 is automatically moved against the spring member 19 by the engaging claw 42a of the engaging element 42. When the opening angle of about 45° is exceeded, the front lid 16 automatically assumes an opening position due to the spring member 19, and the opening/closing lid 35
When the front cover 1 is closed, the engaging claw 42a serves as a support for the front cover 1.
The front lid 16 is maintained in an open position by absorbing an external force applied to the front lid 16 by a finger or the like. Next, when removing the small tape cartridge 2 from the storage chamber 25, the front edge 35a of the opening/closing lid 35 contacts the front lid 16 as shown in FIG. 7 and presses the front M16 downward, so that the front lid 16 Closed automatically. (6) Closing lid locking mechanism for opening/closing lid Opening/closing lid 3 swing-biased to open position by helical spring 38
5 must be locked so that it does not open when closed. Therefore, as shown in FIG. 1, L-shaped locking protrusions 44 are provided protrudingly on the left and right sides of the front end of the inner surface of the opening/closing lid 35. On the other hand, the upper case 20a of the adapter body 20 is provided with a sliding knob 45 that extends onto the upper surface 30, and is
As shown in the drawings and FIG. 6, lock pieces 47 are provided on a lock plate 46 that slides from side to side integrally with the knob 45. Thus, when the opening/closing lid 35 is closed and the knob 46 is slid, the locking pieces 47 engage the respective locking protrusions 44, 44, thereby locking the opening/closing lid 35 in the closed position. I made it. When the knob 45 is slid in the left and right opposite directions, the opening/closing lid 35 is unlocked and automatically opened. The engaging surfaces of each of the engaging protrusions 44 and each of the locking pieces 47 are formed into tapered surfaces in order to resist the pressing force of the plate spring 40 and maintain the opening/closing lid 35 closed freely without wobbling. Furthermore, the lock plate 46 is moved between the locked position and the unlocked position by the contact and riding over engagement between a pair of elastically deformable locking arms 48, 48 that will be connected and a stopper 49 provided on the inner surface of the upper case 20a. and are held respectively. (7) Small tape cartridge has a built-in mechanism for preventing accidental erasure of the tape - The tringe 2 has a built-in tape 4 that can be broken off at a position close to the left end in the figure on the rear wall 51 in order to prevent the tape 4 built into it from being erased accidentally. An erroneous erasure prevention piece 52 is provided. Therefore, even when the small tape cartridge 2 is stored in the storage chamber 25, it is desirable that the outer shape of the adapter body 20 indicate whether or not the accidental erasure prevention piece 52 is broken off. Therefore, on the rear wall 53 of the adapter main body 20, the accidental erasure prevention piece in a standard large (VH3 type) tape cartridge is located where it should be, that is, at a position near the left end in the figure.
A detecting member 55 is installed in the adapter main body 20 so as to penetrate through the inside and outside of the adapter body 20, and detects the presence of the erroneous erasure prevention piece 52 of the small tape cartridge 2 and displays it on the window 54. In FIGS. 10 to 14, the detection member 55 consists of a slide member 56 and a swing member 57. The slide member 56 is attached to the lower case 20 of the adapter body 20.
It is configured to be able to slide freely in the front and back direction on the inner surface of the lower case 20b guided by left and right rib-like guys F59 and 59 protruding from the inner surface of the lower case 20b, and is made of a helical spring supported on the lower case 20b side. The spring member 60 urges the guide 59 in the direction of retraction into the adapter main body 20.
The limit of retraction is regulated by stoppers 61, 61 connected from 59. Note that the stopper 61 is a spring member 60
The spring member 60 also serves as a receiver and prevents the slide member 56 from rising. The slide member 56 connects the lower case 2 with protrusions 62, 62 that protrude from the left and right sides of the lower surface and run forward and backward.
It is brought into contact with the inner surface of 0b to reduce sliding resistance. This protrusion 62 may be provided on the lower case 20b side. The upper end of the swinging member 57 connects to the adapter body 2 via the support shaft 63.
0 is suspended and supported on the inner surface of the upper case 20a, and the support shaft 6
3 as a fulcrum, and a contact terminal 64 protruding from the front side of the lower part faces the position of the erroneous erasure prevention piece 52 of the small tape cartridge 2 in the storage chamber 25 from the rear. An operating arm 65 is cantilevered in the lateral direction from the swinging member 57 and comes into contact with the rear end of the slide member 56 . Note that the support shaft 63 of the swinging member 57 is supported by a plate member 58 that stands up from the case bottom wall 21. Assume now that the erroneous erasure prevention piece 52 of the small tape cartridge 2 has been broken off. At that time, the contact terminal 64 of the swinging member 57 engages in the recess 66 for breaking off the accidental erasure prevention piece of the small tape cartridge 2, so that the slide member 56 interlocked with the swinging member 57 via the operating arm 65 The window 54 of the adapter main body 20 is in a folded-off state in which there is no erroneous erasure prevention piece. When the small-sized tape cartridge 2 has the accidental erasure prevention piece 52, the contact terminal 64 comes into contact with the accidental erasure prevention piece 52 and is pushed back to the rear side, so that the slide member 56
is corrected rearward against the spring member 60, and the rear end surface 56a of the slide member 56 extends into the window 54 and becomes substantially flush with the outer surface of the rear wall 53 of the adapter body 20. In other words, the slide member 56 functions as a piece for preventing accidental erasure of the adapter body 20, in other words, a large tape cartridge. Therefore, when loading the adapter into the deck,
When the rear end surface 56a of the slide member 56 faces the window 54 and the detector on the deck side comes into contact with the rear end surface 56a, it is detected that the tape 4 built into the small tape cartridge 2 is in a state where it can be erased correctly. do. Slide member 56
When the rear end surface 56a is retracted into the adapter body 20 and the deck side detector hits the slide member 56, it is detected that the tape 4 of the small tape cartridge 2 is correctly in the state of preventing accidental erasure. . Note that the front end upper surface 64 a of the contact terminal 64 comes into contact with the lower edge of the rear end of the small tape cartridge 2 when the small tape cartridge 2 is inserted into the storage chamber 25 from above, and the swinging member 57 is stiffened. The contact terminal 64 is formed into a recessed arcuate surface so that it can be pushed back backwards, and the front and rear lower surfaces 64b of the contact terminal 64
is formed in a convex arc shape with a smaller curvature than the curvature of the upper surface 64a so that the swinging member 64 can be pushed back smoothly when the small tape cartridge 2 is taken out from the storage chamber 25. (8) Mechanism for drawing out the tape from the small tape cartridge to the front of the adapter body As already mentioned, when the small tape cartridge 2 is stored in the storage chamber 25 of the frozen dessert adapter 1 and the opening/closing lid 35 is closed,
The front lid 16 of the small tape cartridge 2 is set in an open state, but before loading the adapter 1 into the deck, the tape 4 is pulled out from the small tape cartridge 2 to the front of the adapter body 20, and the tape 4 is pulled out from the small tape cartridge 2 to the front of the adapter body 20, and the tape 4 is pulled out from the small tape cartridge 2 to the front of the adapter body 20. A similar tape wrapping must be kept in place. Next, to explain the tape pull-out mechanism for this purpose, FIG.
The tape 4 contained in the small tape cartridge 2 is stretched between the front left and right tape guide members 77 at this stage. Inside the adapter body 20, round pin-shaped tape pull-out members 70 and 71 are waiting in a vertical position on the front left and right sides of the storage chamber 25, and when the small tape cartridge 2 is inserted into the storage chamber 25 from above, The tape pull-out members 70 and 71 relatively enter the recesses 72 and 73 at the front end of the small tape cartridge 2 from below and enter the inside of the tape 4 stretched between the tape guide members 7 and 7. The left tape drawer member 70 is erected and fixed at the tip of a tape drawer arm 76 that swings horizontally about a fixed fulcrum 75 at the base end. As shown in FIGS. 7 and 8, the small tape cartridge 2 has a lower surface of the bottom wall of the case that is recessed across the left and right width directions at the front part.
The lowered end of the tape pull-out arm 76 fits between the case bottom wall 21 of the adapter body 20 and the case bottom wall of the small tape cartridge 2. This tape pull-out arm 76 is connected to a slide link 79 that slides in the left-right direction via a link 77 and a relay link 78. A bell crank 81 that is horizontally swingable around a support shaft 80 fixed to the inner surface of the upper case 20a is supported in the right lateral space within the adapter body 20, and a slide link 79 is provided on the short side of the bell crank 81. The proximal end of (
(right end in Fig. 15) are connected by engagement with the elongated hole and the pin. Also, in the space on the right side of the adapter body 20, there is an upper case 20.
A horizontal cam plate 82 along the inner surface of a is fixed. This cam plate 82 has two rows of curved elongated holes 84 and 85 with different centers of curvature running in the front and rear directions, and pins 86 and 87 that pass through each of the elongated holes 84 and 85 as shown in FIG. Slide links 88 and 89 are integrally connected to each other above and below the cam plate 82 via the cam plate 82, and the upper slide link 88 and the tip of the long side of the bell crank 81 are connected by a link 90. On the other hand, another tape pull-out arm 93 is connected to a pin 91 provided on the lower slide link 89 through a dogleg-shaped long hole 92, and the tape pull-out member 71 on the right side is connected to the vertical end of this arm 93. is installed vertically. A tension spring 94 is mounted across the arm 93 and the lower slide link 89 to bias the tape pull-out arm 93 toward the lower slide link 89. Also, on the side edge of the tape drawer arm 93, there is a vertical slide link 88.
A notch 95 is provided which engages one pin 86 connecting the two pins 89 from the side. A manual operation lever 9G is attached to the support shaft 80 of the bell crank 81.
The lever 96 and the bell crank 81 are flexibly connected to each other by engagement with an elongated hole 97 and a pin 98 to allow relative rotation within a certain small angle. A tension spring 99 is installed between the bell crank 81 and the lever 96 to urge them toward each other. The tip of the operating lever 96 is connected to the rear wall 53 of the adapter body 20 through a left and right horizontally elongated slit 100 formed in the joint surfaces of the upper and lower cases 20a and 20b that constitute the adapter body 20.
It protrudes outward, and a knob 101 is fixed to the protruding end. A knob storage notch 102 is formed on the outer surface of the rear wall 53 of the adapter body 20 at approximately the center in the left-right direction.
A notch 104 for housing a knob that straddles the virtual ridge line between the rear wall 53 and the right side wall 103 at the rear right corner of the adapter body 20
are formed, and the knob 101 is accommodated in the notches 102 and 104, respectively, at the swinging end lζ of the operating lever 96. On the other hand, since the notch 104 is open at the corner across the rear side wall 53 and the right side wall 103, the knob 10 is opened especially when the operation lever 9G is swung from right to left in the figure.
You can easily hook your fingertips onto 1 from the right side. Next, to explain its operation, in the state before the tape is pulled out from the small tape cartridge 2 stored in the adapter main body 20, as shown in FIG. are located at the front ends of the curved elongated holes 84 and 85, respectively. If the operating lever 96 is rotated clockwise from this state,
As shown in FIG. 16, the bell crank 81 rotates in the same direction, the slide link 79 moves to the left, and the left tape pull-out arm 76 moves horizontally counterclockwise around the support shaft 75. The tape 4 is first pulled out forward by the left tape pull-out member 70. As the bell crank 8] rotates clockwise, the upper and lower slide links 88 and 89 are guided by the elongated hole 8485 and slide rearward thereof, and the right tape drawer arm 93 also horizontally swings. The tape 4 is then pulled out forward by the right tape pull-out member 71. At this time, the two long holes 84 and 85 have different centers of curvature, and the slide links 88 and 89 change their posture dually on the slide surface. Therefore, as shown in FIG. 17, the movement locus P of the tape pull-out member 71, which has an uneven tip end, of the tape pull-out arm 93, draws an intermediate curved line having a large curvature in the initial stage and a small curvature in the latter half. That is, at the beginning of the tape drawing movement, the forward movement component is large, and in the latter half, the movement component in the right lateral direction is large. Therefore, while the front lid 24 of the adapter body 20 remains in the closed position, the tape 4 can be pulled out to a large extent laterally and outwardly even if the front and rear spaces inside the front lid 24 are small. Being able to pull out the tape with the front cover 24 closed is extremely advantageous in preventing the tape 4 from coming into contact with other objects and being damaged before the adapter 1 is loaded onto the deck. It is. Next, one connecting pin 86 of the slide links 88 and 89 is connected to the rear end of the long hole 84, and the other connecting pin 87 is connected to the long hole 85.
When reaching the bending point, the small-diameter portions at the upper and lower ends of the right tape pull-out member 71 are connected to the L-shaped engaging portion 106a of the member 106, which is fixed at a position near the right corner of the front end of the adapter body 20.
The receiver is stopped and supported. As the operating lever 96 is further swung, the ends of the upper and lower slide links 88 and 89 rotate clockwise around the pin 86, as shown in FIG. Move to the edge. Then, as the link rotates, the pin 91 moves toward the rear end of the dogleg-shaped elongated hole 92, so that the tape pull-out arm 93 is relatively connected to the tape guide member 71 and the engaging portion 106.
It is forcibly rotated counterclockwise around the locking point with a. The locking protrusion 1 protruding from the member 106 is connected to the locking port 107 formed by the outer edge δ on the distal end side of the arm 93.
08, and thus the tape drawer arm 93 is fixed in a three-point supported state by the bin 91, the holder 106, and the locking protrusion 108, and the accumulated backlash of the link mechanism is absorbed, and the tape drawer member 71 is fixed. The receiver is securely positioned and supported by the member 106 in a vertical position. Note that the upper and lower ends of the left tape drawer member 7o are at the tape drawer limit, and the receiver disposed at the front left corner of the adapter body 20 is connected to the L-shaped insertion portion 109a of the member 109.
The upper and lower ends are supported by the supports. Both ends of a click spring 115 having a loop portion in the middle are connected to the upper wall of the adapter body 20 and the tape pull-out arm 76, respectively, and the spring 115 moves the tape pull-out arm 76 to the intermediate moving position at the dead center. As a result, it is biased to move toward the front drawn-out position and the rear retracted position. Therefore, the tape drawer member 70 absorbs the accumulated looseness of the link mechanism, and the receiver is pressed against the engaging portion 109a of the member 109, and is reliably positioned and held in the vertical position at the drawer position, and is well held in the retracted position. Ru. As mentioned above, the left and right tape drawer parts IJ'70 and 71
When they are moved diagonally to the forward movement limit and fixed, the positions correspond to the original positions of the front left and right tape guide members in a standard large tape cartridge, and the tape 4 is moved to the left and right tape drawer members 70.・7
It is stretched for 1 hour. From this state, adapter 1
When loaded onto the deck, the front cover 24 of the adapter body 20 opens and the tape 4 is pulled out toward the rotating head in front by the tape loading pin on the deck side. In this way, the tape 4 is guided by both tape pull-out members 70 and 71 and travels. In the present invention, the means for moving the tape pull-out members 70 and 71 is not limited to the illustrated example; for example, the upper and lower ends of the shafts of the tape pull-out members 70 and 71 may be connected to slide grooves provided in the upper and lower walls of the adapter body 20. The upper end of each tape pull-out member 70, 71 may be gripped and moved along the slide groove. Further, the movement locus P of these members may be such that they move perpendicularly to the front cover 24 in the early stage of movement, and move parallel to the front cover 24 in the latter half. 26-(9) Fixing mechanism for the small tape cartridge in the adapter storage chamber When the small tape cartridge 2 is stored and the adapter 1 is loaded on the deck, one drive shaft on the deck side passes through the bottom wall 21 of the adapter body 20. The tape reel 5 on the feeding side of the small tape cartridge 2 is inserted through the provided drive shaft insertion hole 22.
The tape reel 5 is fitted into the hub hole of the tape reel 5. At this time, it is necessary to prevent the small tape cartridge 2 from floating up within the storage chamber 25. To this end, the bin 110 is set up on the slide link 79 for moving the left tape drawer arm 76, and the base end of the lock arm 111 is rotatably supported on the inner surface of the upper case 20a of the adapter main body 20. Connect the two prongs at the tip to the bottle 1]0, and lock the lock arm 111.
The four-piece piece 112 is connected from the base end. As shown in FIG. 15, the lock piece 112 does not face the storage chamber 25 before the operation lever 96 operates to pull out the tape, but it locks when the link 79 slides to the left as the tape pulls out. As shown in FIGS. 16 and 17, the piece 112 enters and rotates into the storage chamber 25, and the lock piece 112 engages in a semicircular recess 113 formed on the outer surface of the rear wall 51 of the small tape cartridge 2. The small tape cartridge 2 is fixed in place. α0) Mechanism control lever 96 to prevent forgetting to operate the tape drawer
If the user forgets to perform the tape pull-out operation and loads the adapter 1 into the deck, the deck will not operate because the tape 4 cannot be pulled out from the front of the adapter 1. Since the user may miss a long-awaited recording opportunity, it is necessary to notify the user as soon as possible that the tape is being pulled out. It is also necessary to clearly determine the cause of the deck's inoperability. Furthermore, in the illustrated example adapter 1, a lamp insertion hole 116 into which a tape end detection lamp is inserted is provided in the front right and left center portion of the bottom wall 21, and the tape 4 is inserted into the lamp before the tape draw operation. Since it runs above the hole 116, if the adapter 1 is loaded onto the deck as it is, the lamp inserted into the lamp insertion hole 116 will hit the tape 4 and damage the tape 4. Therefore, in this respect as well, it is desirable to prevent the adapter 1 from being loaded onto the deck if the tape pull-out operation is forgotten. Therefore, in Hyouka, a groove 117 to prevent incorrect loading is formed in the bottom wall 21 of the adapter body 20 in a straight line from the front edge 21a of the bottom wall 21 to the lamp insertion hole 116.
A recessed portion 118 is formed at the lower end of the front lid 24 on an extension line of 7. This incorrect loading prevention groove 117 was originally
When the adapter is correctly loaded on the deck, the detector on the deck side slides into the political information 117 and allows the adapter 1 to be loaded. However, when the adapter 1 is loaded with the front and back or the top and bottom reversed, the adapter 1 does not fit on the deck. This is a device that prevents it from being completely loaded. Then, the movable member 11 is placed on the inner surface of the bottom wall 21 at a position forward of the storage chamber 25 in the adapter main body 20.
9 is enclosed by a guide 120 and a spring member 121 is installed to force the movable member 119 to slide in the left-right direction.
Set the position so that it interferes with the swinging trajectory of the tip. In the state shown in FIG. 15 before the tape drawing operation, the movable member 119 in contact with the arm 76 and the upright piece 122 is shifted rightward against the spring member 121,
The right end portion 119a of 9 closes the top of the erroneous loading prevention groove 117. Therefore, under this condition, even if the adapter 1 is loaded onto the deck in the correct orientation, the detector on the deck side will interfere with the right end 119a of the movable member 119, so if the adapter 1 is loaded in the reverse direction or upside down. Similarly, the Desoki Hair Adapter 1 cannot be completely pushed in and loaded. However, when the tape pull-out operation is performed as shown in FIG. 17, the movable member 119 is shifted to the left by the spring member 121 and the erroneous loading prevention a, 117 is opened, so in this case, the adapter 1 can be pushed into the deck and loaded. become. Drive mechanism for the tape reel of a small tape cartridge using an Oυ deck When the adapter 1 is loaded into the deck, the drive shaft on the deck side enters the left and right drive shaft insertion holes 22 and 23 provided through the bottom wall 21 of the adapter body 20, respectively. The drive shaft inserted into the drive shaft insertion hole 22 on the left side engages with the hub hole of the tape reel 5 on the feeding side of the small tape cartridge 2. However, the take-up tape reel 6 of the small tape cartridge 2 and the drive shaft insertion hole 23 on the right side are separated, and a mechanism for rotationally driving the take-up tape reel 6 is required. To this end, the adapter body 20 has a hub hole 123 on the center W of the drive shaft insertion hole 23 on the right side, which is substantially the same as the hub hole of the tape reel that enters the large tape cartridge, as shown in FIG. A gear 124 is attached so as to be freely movable in the radial direction, and the small tape cartridge 2
An idle gear 12 having upper and lower gear parts 125a and 125b between the gear part 1 formed on the outer periphery of the lower flange 10 of the take-up side tape reel 6 and the drive gear 124.
5, and the upper gear part 125 of the idle gear 125
a to the drive gear 124 in a freely thrusting manner, and the lower gear part 1
The idle gears 125, which are respectively engaged with the gear portions 11 of the tape reel 6 on the take-up side, are attached to the inner surface of the upper case of the adapter body 20.
6 is suspended and supported via a support shaft 127 so as to be vertically movable within a certain range, and is biased upward by a compression coil spring 128. Therefore, when the small tape cartridge 2 is inserted into the storage chamber 25 of the adapter body 20 from above, the reel gear part 1 is inserted into the lower gear part 125b of the idle gear 125.
1 may not mesh properly, the idle gear 125 resists the spring 128 and escapes downward, and when the idle gear 125 starts driving and the meshing phases match, the idle gear 125 is automatically pulled up and the normal They become engaged. As shown in FIG. 15, the bracket 126 is supported on the upper case 20a by a pin 129 and a long hole 130 so as to be rotatable within a certain angle range around the axis W' of the take-up tape reel 6. There is a tension spring 132 that urges the drive gear 124 and the reel gear portion 11 to move in a wedge-like manner. Therefore, the idle gear 125
is always engaged with the lug gear part 11, and then the drive gear 12
The gear 124 closely follows the free movement of the gear 124, and meshes with the gear 124 while always absorbing the play. 02+ Mechanism for winding the tape pulled out onto the tape reel of a small tape cartridge by operating a lever When the tape 4 pulled out from the small tape cartridge 2 is returned to its original position from the front position by operating a lever, the tape 4 is pulled out from the small tape cartridge 2. It must be wound onto the tape reel of the small tape cartridge 2. For this purpose, a mechanism is provided to take up and rotate the take-up tape reel 6 only when the operation lever 960 is returned counterclockwise. That is, a fan-shaped gear 134 that rotates around the lever support shaft 80 together with the lever 96 is fixed to the tip side of the operating lever 96 as shown in FIGS. A rotating shaft 135 is erected on the bracket 1 and the upper end of the rotating shaft 135 is fixed to the upper case 20a.
36, the lower ends of which are rotatably supported by bearings 137 of the lower case 20b, and a sector gear 13 is mounted on the upper part of the rotating shaft 135.
4 is fixed, and a large diameter gear 139 is fixed to the lower end of the rotating shaft 135.
A swinging arm 140 is loosely fitted and supported in the upper and lower middle of the arm 140, a support shaft 141 is fixed downward to the tip of the arm 140, and large and small gears 142 and 143 are loosely fitted and supported in the upper and lower portions of the support shaft 141, respectively. The upper large gear 142 is the drive gear 12.
4, and the lower small gear 143 is always engaged with the large diameter gear 139. A friction plate 145 made of synthetic resin is interposed between the upper and lower large and small gears 142 and 143, and a compression spring 146 attached to the lower end of the support shaft 141 causes the friction plate 1 to move between the large and small gears 142 and 143.
45 is elastically clamped, thereby forming a friction clutch 147 that transmits power only with a constant torque reduction. On the lower surface of the sector-shaped gear 134, small-diameter concave cam surfaces 149 and 150 are formed at both ends, and an arcuate cam surface 151 concentric with the center of the gear is formed in the middle, and a cam follower 152 that comes into contact with these cam surfaces is formed. A helical spring 153 is loosely fitted to the rotating shaft 135 and is interposed between the cam follower 152 and the arm 140, and a weak spring 155 that pulls the arm 140 outward is installed. In such a case, when the operation lever 96 is in the position before the tape drawer operation as shown in FIG. 24, the cam follower 1
52 faces the recessed cam surface 149 at one end of the fan-shaped gear 134 and the cam follower 152 is allowed to move freely, so the swing arm 140 is pulled by the tension spring 155 and the gear 14
2 is removed from the drive gear 124. Next, when the operating lever 96 is swung clockwise as shown in FIG. 25 for tape draw-out operation, the fan-shaped gear 134
Since both rotate in the same direction, the cam follower 152 rides on the arcuate cam surface 151 and rotates counterclockwise. that time,
The movable arm 140 is prevented from swinging outward any further by a stopper (not shown). When the operating lever 96 is swung to the tape withdrawal end position, the cam follower 152 is disengaged from the arcuate cam surface 151 and rotated back clockwise along the other recessed cam surface 150, as shown in FIG. Even in this state, the swing arm 140
does not move, and gear 142 is disengaged from drive gear 124. Therefore, even if the adapter 1 is loaded on the deck and the drive shaft on the deck side drives the drive gear 124 to rotate, no power is transmitted to the gear 142. However, when the adapter 1 is removed from the deck after use and the operating lever 96 is swung counterclockwise, the cam follower 152 is forcibly rotated clockwise as shown in FIG. Since the swing arm 140 rides on the spring 155 due to the tensile force of the helical spring 153,
The gear 142 at the tip of the swinging arm 140 swings against the
meshes with the drive gear 124. When the operation lever 96 is returned to its original position, the rotation of the pinion gear 138 that engages with the fan-shaped gear 134 is transmitted to the drive gear 124 via each gear group, and the take-up tape reel 6 is moved to the idle gear 125 to release the tape. Rotates in the winding direction. In reality, the tape reel 6 rotates approximately five times due to the combination of large and small gears. As a result, the tape 4, which had been drawn out to the front of the adapter main body 20 as the left and right tape drawing members 70 and 71 moved in and out, is wound onto the tape reel 6 without slack. However, if, for example, the tape 4 is fully wound on the winding-side tape reel 6, the amount of tape winding will be greater than the amount of tape being pulled out. In such a case, the aforementioned friction clutch 147 is activated to prevent undue tension from being applied to the tape 4. A little before the operation lever 96 reaches the return end (approximately 7 degrees), the tape pull-out link mechanism reaches its operating limit, but the bell crank 81 and the operation lever 96 are connected to the elongated hole 97 and the pin 98.
The operating lever 96 provides flexibility by engaging with the operating lever 96.
can further swing against the spring 99, and the tape drawer +,
Winding work is also carried out after entering and exiting t70 71, and the winding side tape reel 6 is rotated approximately half a turn. Therefore, the final winding of the tape 4 is performed with a tension corresponding to the set torque of the friction clutch 147, and the tape 4 is wound tightly. According to the present invention as described above, of the left and right tape drawer members 70 and 71, at least the tape drawer member 71 which has a large amount of lateral movement from the retracted position to the drawer position
In this case, the movement trajectory P from the retracted position to the withdrawn position is set so that at the beginning of the movement, the forward movement component is greater than the lateral movement component, and in the latter half, the lateral movement component is greater than the forward movement component. be. Therefore, the tape drawer member 71 is moved from the retracted position to the small tape cart/knob 2.
It can be pulled out forward without contacting or interfering with the front edge of the
In addition, the adapter body 20 does not protrude forward during movement. In other words, the tape drawer member 71 can move largely in the left and right directions in a small front and rear space within the adapter main body, and the tape drawer member 71 can be moved to a predetermined position in front of the adapter main body 20, which simulates a large tape cartridge, without any hindrance. be able to.

[Brief explanation of drawings]

FIG. 1 is an external perspective view of an adapter and a small tape cartridge according to the present invention as seen from the rear side, and FIG. 2 is a perspective view of them as seen from the front. Figure 3 is a plan view mainly showing the storage chamber for the adapter;
The figure is a sectional view taken along the line A-A in FIG. 3, FIG. 5 is a sectional view taken along the line B-B in FIG. 3, and FIG.
c vA sectional view, Fig. 7 is a sectional view taken along the line D-D in Fig. 3, Fig. 8 is a partially cutaway side view with the storage chamber opening/closing lid open, and Fig. 9 is a small-sized section from the storage chamber. FIG. 3 is a longitudinal cross-sectional view showing how to remove the tape cartridge. 10 to 14 do not illustrate the tape erase prevention mechanism built into the small tape cartridge; FIG. 10 is a perspective view, FIG. 11 is a plan view, and FIG. 12 is an E in FIG. 11. -H line sectional view, Fig. 13 is a FF line sectional view in Fig. 11, and Fig. 14 is a vertical sectional side opening corresponding to Fig. 13 with the accidental erasure prevention piece of the small tape cartridge. . 15 to 20 show the tape drawer mechanism, FIG. 15 is a plan view showing the state before the tape drawer operation, FIG. 16 is a plan view showing the state during the tape drawer operation, and FIG. 17 18 is a plan view showing the state after the tape drawer operation, FIG. 18 is a sectional view taken along the line GG in FIG. 17, and FIG.
The drawings are a sectional view taken along the line H--H in FIG. 17, FIG. 20 is a schematic perspective view of the tape drawer link mechanism, and FIG. 21 is an exploded perspective view showing a part of the tape drawer link mechanism. Figures 22 to 27 show the tape winding mechanism. Figure 22 is a longitudinal sectional view of the main parts, Figure 23 is a perspective view of the main parts, and Figures 24 to 27 are the operation levers. 24 is a plan view showing the relationship between the movement and the tape winding mechanism over time, FIG. 24 is before the tape is pulled out, FIG. 25 is during the tape being pulled out, FIG. 26 is when the tape is being pulled out, and FIG. 27 is during the operation. Each figure shows a state in which the lever is operated to return and the tape is being wound. 1...Adapter, 2...Small tape cartridge, 4...Tape, -Adapter body, -Storage chamber, 1...Tape drawer member, -Operation lever Patent Applicant: Kyushu Hitachi Maxell Agent Co., Ltd. Patent Attorney Oriyori Takeshi Diagram■ E-Tsuku Procedures Principal Authorization (Spontaneous) August 22, 1999 Patent Application (2) filed on July 26, 1999 (2) 2. Name of the invention Small size Tape Cartridge Adapter 3, Relationship with the Amended Person Case Patent Applicant Address 4680 Oaza Ikata, Hojo-cho, Tagawa-gun, Fukuoka Name
Kyushu Hitachi Maxell Co., Ltd. 4, Agent ◎530 Do (06) 312-47
38 Address: 3-21-6 Suehiro-cho, Kita-ku, Osaka, Japan Contents of amendment (1) The full text of the specification of the application is amended as shown in the attached sheet (no changes are made to the content other than the matters stated in the subject of amendment). (2) In the attached drawings, Figures 1 to 22 are amended as shown in the attached sheet. (3) Figures 23 to 27 are deleted from the attached drawings. 7. Attached documents (1) Full text amended specification 1 copy (
2) Drawings (Figures 1 to 22) 1 On the board (1) "Claims" column of the specification (2) "Detailed description of the invention" column of the specification Description 1, Invention Adapter 2 for small tape cartridge Claims (1) The adapter body 20) is formed to have substantially the same external shape as the large tape cartridge;
A storage chamber (2) where a small tape cartridge (2) is stored in a removable manner near one of the left and right sides of the adapter body (20).
(25); The adapter body (20) is provided with an opening/closing lid (35) that freely opens and closes the upper surface of the opening of the storage chamber (25); ) is equipped with a closing lid locking mechanism to maintain the opening/closing lid (35) in the closed position, and the inner surface of the opening/closing lid (35) is provided with a liver pressure action on the upper surface of the small tape cartridge (2) stored in the storage chamber (25). An adapter for a small tape cartridge, characterized in that it is equipped with a floating regulating member (40) for controlling floating of the small tape cartridge (2). adapter. DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a small tape cartridge adapter that allows a small tape cartridge to be used by being loaded into a deck for a large tape cartridge. [Prior art] As a prior art related to this type of adapter, Japanese Patent Application Laid-Open No. 1986-
There is a publication 45172m. To explain this with particular reference to the attached Figures 1 to 3, a small tape cartridge 2 can be inserted and removed from above into an adapter body 20 that has substantially the same external shape as a large tape cartridge. A tape drawer member 70 has a storage chamber 25 in which the small tape cartridge 2 is stored, and when the small tape cartridge 2 is stored in the storage chamber 25, the tape 4 contained in the small tape cartridge 2 is pulled out from the front surface of the small tape cartridge 2 to the front surface of the adapter main body 20. - 71 is provided inside the adapter body 20. An opening/closing lid 35 is attached to the adapter body 20 to open and close the upper surface of the opening of the storage chamber 25. The opening/closing lid 35 there is pivotably connected around a pivot 37 in a horizontal position in which the upper surface of the opening of the storage chamber 25 is closed with respect to the adapter body 20, and in a vertical position in which it opens upward above the storage chamber 25. has been done. [Problems to be Solved by the Invention] However, the conventional opening/closing lid 35 merely closes the opening top surface of the storage chamber 25. Therefore, firstly, when storing the small tape cartridge 2 in the storage chamber 25 and loading it onto the deck with the opening/closing lid 35 closed, the small tape cartridge 2 may not be stored properly or may receive a slight impact. If the opening/closing lid 35 is slightly open, the opening/closing lid 35 may come into contact with and interfere with the deck side members, making it impossible to smoothly load the adapter body 20 onto the deck, or causing damage to the opening/closing lid 35, etc. there were. Furthermore, as described later, the drive shaft on the deck side is connected to the adapter body 2.
When the tape reel 5 on the feeding side inside the small tape cartridge 2 is fitted from below through the drive shaft insertion hole 22 provided in the bottom wall 21 of the tape cartridge 2, the entire small tape cartridge 2 may be pushed up along with the opening/closing lid 35. was there. Second, the small tape cartridge 2 tends to wobble vertically within the storage chamber 25, which causes the adapter body 20 to
Tape 4 built into small tape cartridge 2 inside
This resulted in a situation in which the vertical height of the structure could not be specified uniformly. If this happens, serious troubles such as damage to the tape and failure or inability to pull out the tape may occur when the tape 4 is pulled out from the small tape cartridge 2 to the front within the adapter body 20. SUMMARY OF THE INVENTION An object of the present invention is to provide an adapter for a small tape cartridge that can securely maintain a predetermined closed position and lock the opening/closing lid on the upper surface of the opening of the storage chamber. Another object of the present invention is to provide an adapter for a small tape cartridge that can prevent the small tape cartridge from floating up in the storage chamber with the opening/closing lid and can reliably support the small tape cartridge in a predetermined storage position. [Means for Solving the Problems] In particular, as shown in FIGS. 1 to 3, the adapter main body 20 is formed to have substantially the same external shape as a large tape cartridge, and the left and right sides of the adapter main body 20 are In one example, there is a storage chamber 25 in which the small tape cartridge 2 is removably stored, and the built-in chip 14 is inserted into the front of the adapter body 20 from the front of the small tape cartridge 2 stored in the storage chamber 25. In a tape cartridge that includes tape pull-out members 70 and 71 inside the adapter body 20, the adapter body 20 is provided with an opening/closing lid 35 that freely opens and closes the upper surface of the opening of the storage chamber 25; The opening/closing lid 35 is provided with a closing lid locking mechanism for holding the opening/closing lid 35 in the closed position, and the opening/closing lid 35 has an inner surface that presses against the upper surface of the small tape cartridge 2 stored in the storage chamber 25 to lock the small tape cartridge. 2 is required to be provided with a lifting regulating member 40 that restricts lifting of 2. More preferably, this floating regulating member 40 is made of a leaf spring. [Function] When the opening/closing lid 35 is rotated upward as shown in FIG. 1, the small tape cartridge 2 can be stored in the storage chamber 25 from above. Next, the opening/closing lid 35 can be held in a closed position with the opening top surface of the storage chamber 25 closed, using a closing lid locking mechanism to prevent it from being opened unexpectedly. In the closed lid locked state where the opening/closing lid 35 closes the top surface of the opening of the storage chamber 25 as described above, there is a gap between the inner surface of the opening/closing lid 35 and the top surface of the small tape cartridge 2; Lifting regulating member 40 provided on the inner surface
fills the gap and presses against the upper surface of the small tape cartridge 2, thereby preventing the small tape car I-ridge 2 from floating up in the storage chamber 25 and holding it in a predetermined position. [Effects of the Invention] According to the present invention, the storage chamber 25 of the adapter body 20
After storing the small tape cartridge 2 in the storage chamber 25 and closing the opening upper surface of the storage chamber 25 with the opening/closing lid 35, the opening/closing lid 35 can be surely held in a closed position by a closing lid locking mechanism so as not to open. Therefore, when loading the adapter body 20 onto the deck, it is possible to effectively prevent the opening/closing lid 35 from being accidentally opened and being damaged, or causing failure in loading the adapter body 20 onto the deck. Moreover, when the open/close lid 35 completely closes the upper surface of the opening of the storage chamber 25, the open/close lid 35 presses against the upper surface of the small tape cartridge 2 via the lift-up regulating member 40 provided on the inner surface thereof. The small tape cartridge 2 can be stably supported within the adapter body 25 while being held down without wobbling downward, and the vertical height of the tape 4 built into the small tape cartridge 2 can always be positioned within the adapter body 20 at a specified level. can. Therefore, the tape 4 can be pulled out smoothly from the small tape cartridge 2 within the adapter body 20, and the tape can be run stably within the deck. In addition, instead of pressing the top surface of the small tape cartridge 2 with the entire inner surface of the opening/closing lid 35, the lifting regulating member 4
0 is made to press against a part of the upper surface of the small tape cartridge 2, so there is less influence of molding defects such as the thickness accuracy of the opening/closing lid 35 and the flatness accuracy of the entire inner surface, and there is less influence of looseness on assembly. The small tape cartridge 2 can be reliably pressed with the opening/closing lid 35 via the opening/closing cover 40. In particular, when the floating regulating member 40 is made of a leaf spring, it acts elastically to press against the upper surface of the small tape cartridge 2, and also adjusts the size of the gap that occurs between the upper surface of the small tape cartridge 2 and the inner surface of the opening/closing lid 35. Since it is absorbed, the small tape cartridge 2 can be more stably pressed and positioned and supported. [Embodiment] The ice candy adapter 1 shown in the figure is adapted to be used by loading a small video tape cartridge 2 into a normal video deck for large tape cartridges. (1) Structure of a small tape cartridge In Figs. 1 and 2, the small tape cartridge 2 functions independently, and the upper and lower plastic cases 3a and 3b are connected with tapping screws to fit the lids together. Tape reels 5 and 6 with flanges on which the tape 4 is wound are rotatably mounted on the left and right sides of the main body case 3, which is connected with the main body case 3, and tape guide members 7 and 7 are arranged on the front left and right sides of the main body case 3. Yes, tape 4 in Figure 1 seen from the rear side.
is led out from the left feed reel 5 to the front of the case and taken up on the right take-up reel 6. However, the tape reel 5 on the feeding side is mounted on a drive shaft insertion hole formed in the bottom wall of the case to allow a certain amount of free movement in the radial direction, and the tape reel 6 on the winding side is supported by a vertical fixed shaft 9. rotates around the fixed shaft 9, and the lower flange 10
A gear portion 11 formed on the outer periphery of the main body case 3 is exposed laterally outwardly through a notch 13 formed across the bottom wall and the right side wall 12 of the main body case 3. In FIG. 1, a transparent window 15 is formed on the left side of the upper case 3a for visually checking the amount of tape wound on the tape reel 5 on the feeding side from the outside. The main body case 3 is provided with a front cover 16 for closing the front side of the main body case 3 and protecting the tape 4 when not in use. This front cover 16 has connecting pieces 18 and 18 at both left and right ends of the front plate 17.
is extended rearward, and both connecting pieces 18, 18 are externally fitted into the front end recesses of the left and right side walls 12, 12 of the main body case 3, and are pivotally supported for rotation. Front with U-shaped spring member 19 attached to side wall 12! 116 is held in the closed position with the opening angle of about 45 degrees as the dead center, and is held in the closed position, and when it is in the upwardly opened position of 90 degrees forward, it is held in the open position. (2) Basic structure of the adapter In FIGS. 1 and 2, the Hyouka adapter 1 has at least the outer shape of the adapter body 20 formed to have substantially the same specifications as a large tape cartridge, a so-called VHS type tape cartridge, When loaded into the VHS type tape cartridge deck, the deck operates without any problems. In other words, the adapter main body 20 is formed by joining upper and lower plastic cases 20a and 20b together with tapping screws, etc., and insertion holes 22 and 23 into which the deck side drive shafts are inserted pass through the bottom wall 21 on the left and right sides. It is set up in a shape. A front cover 24 that closes the front side of the adapter body 20 is pivotally attached to the adapter body 20 so as to be able to rotate freely to open and close, and is always urged to rotate in the closed position by a spring member (not shown), and has a locking mechanism that holds the adapter body in the closed position. We are prepared. Since these configurations have the same specifications as standard VHS type tape cartridges, details will be omitted. However, the internal structure of the adapter body 20 is different from that of a standard large tape cartridge; there is no tape reel, and the front surface of the adapter body 20 is open. (3) Storage chamber of adapter A storage chamber 25 with an open top surface is defined at the left side of the adapter body 20 in FIG. 1, and the small tape cartridge 2 can be freely inserted into and removed from the storage chamber 25 from above. is stored in In FIGS. 1 and 5, the left and right side walls 2 of the storage chamber 25
The inner wall surfaces of 6 have upper ends formed into stepped surfaces 27 that are stepped down from the upper surface 30 of the adapter main body 20, and slope guide surfaces 28 that slope downward from each stepped surface 27, and then the sloped guide surfaces 28 that slope downward from each stepped surface 27. A vertical surface 29 that continues to the guide surface 28 and reaches the bottom wall 21
They are each formed into a cross-sectional shape having . The height of each of the left and right stepped surfaces 27 is lower than the upper end surface of the small tape cartridge 2 when stored in the storage chamber 25.
Also, as shown in FIG. 5, the fingertips can fully fit between the vertical downward surface 31 extending from the top surface 30 of the adapter body 20 to the stepped surface 27 and the left and right side walls 12 of the small tape cartridge 2. A gap g sufficient for this purpose is formed. Guide ribs 32 extending from the bottom wall 21 to the height of the stepped surface 27 are provided at rearward positions on the inner wall surfaces of the left and right side walls 26, respectively. In such a case, insert the small tape cartridge 2 from above into the storage chamber 25 with its front and back orientation aligned with that of the adapter body 20, and cut the vertical grooves 33 in the rearward outer surface of the left and right side walls 12 of the small tape cartridge 2. The guide rib 32
guide and fit into each other. When the small tape cartridge 2 is stored in the storage chamber 25, the left and right side walls 12 of the small tape cartridge 2 are supported by the vertical surface 29 to position the small tape cartridge 2 in the left and right direction. Positioning in the front-rear direction is achieved by fitting with. Therefore, the tape reel 5 on the feeding side of the small tape cartridge 2 stored in the storage chamber 25 is connected to the adapter body 2.
It fits concentrically on the drive shaft insertion hole 22 of No. 0. Furthermore, since the inner wall surface of the left and right side walls 26 of the storage chamber 25 has a stepped surface 27 and an inclined guide surface 28 at the upper end thereof, a finger insertion gap g is formed, so that the small tape cartridge 2 can be inserted as shown in FIG. Even if the top surface of the cartridge is stored one step lower than the top surface 30 of the adapter main body 20, the small tape cartridge 2 can be removed from the storage chamber 25 by inserting a fingertip into the gap g.
can be easily picked out. (4) Opening/closing lid of storage chamber The opening top surface of the storage chamber 25 is closed with an opening/closing lid 35 so as to be openable and closable. In FIGS. 2, 3, and 8, when the opening/closing lid 35 is in the closed state, the protruding side pieces 36 on the left and right sides of the front end are attached to the pivot shaft 3.
7 and 37 as fulcrums, and are pivotally connected to be able to swing open and close. That is, the opening/closing lid 35 with respect to the adapter main body 20 is pivoted between the horizontal position in which the upper surface of the opening of the storage chamber 25 is closed and the position in which it is opened upward toward the front side of the storage chamber 25.
It is pivotally connected around 37 so as to be able to swing freely. The opening/closing lid 35 is rotatably biased to the open position by a helical spring 38 fitted to one of the pivots 37, and as shown in FIG. By contacting the upper edge of the opening, the maximum measuring angle is regulated to approximately 115 degrees. On the inner surface of the opening/closing lid 35, reinforcing ribs 39, 39 extending in the front and back direction are provided on the left and right ends, as shown in FIG. is reinforced, and the opening/closing lid 35 is connected to the storage chamber 2.
5, the lower end surfaces of the reinforcing ribs 39, 39 are supported by the stepped surfaces 27, 27, respectively. In the closed state in which the reinforcing ribs 39, 39 are supported by the stepped surfaces 27, 27, the upper surface of the opening/closing lid 35 is flush with the upper surface 30 of the adapter body 20. Therefore, when the adapter 1 is pushed into the deck in a horizontal position and loaded,
Reference surface on the bottom of the adapter body 20 (usually at 4 corners)
The receiver is supported on the deck side, and correspondingly, several places on the top surface 30 of the adapter body 20 including the top surface of the opening/closing lid 35 are pressed down by the deck to prevent the adapter body 20 from wobbling. In FIG. 1, a tape j? ! Transparent window 4 for visualizing 5 quantities
1 is formed. Of course, instead of forming the transparent window 41, the opening/closing lid 35 itself may be transparent. (5) Closing lid locking mechanism for opening/closing lid The opening/closing lid 35 is locked so as not to open when the upper surface of the opening of the storage chamber 25 is completely closed. As shown in FIG. 1, the closing lid locking mechanism includes L-shaped locking protrusions 44, 44 on the left and right rear ends of the inner surface of the opening/closing lid 35.
to protrude. On the other hand, the upper case 20a of the adapter main body 20
A sliding knob 45 facing the top surface 30 is provided at the rear end, and lock pieces 47 are attached to a lock plate 46 that slides left and right together with the knob 45, as shown in FIGS. 3, 4, and 6. 47 will be provided. Thus, when the opening/closing lid 35 is closed and the knob 45 is slid in one direction left or right, the locking pieces 47 engage the respective locking protrusions 44, 44, and the opening/closing lid 35 is thus placed in the closed position. It is now locked to . When the knob 45 is slid in the left and right opposite directions, the opening/closing lid 35 is unlocked and automatically opened. The engaging surfaces of each of the engaging protrusions 44 and each of the locking pieces 47 are tapered as shown in FIG. 4 in order to maintain the opening/closing lid 35 to close easily without wobbling. Further, the lock plate 46 is moved between the lock position and the lock release position by a pair of elastically deformable locking arms 48, 48 that can be extended from the top, and a stopper 49 provided on the inner surface of the upper case 20a. Each is retained. (6) Lifting of the small tape cartridge by the opening/closing lid In the above-mentioned closed lid locked state in which the small tape car 1-ridge 2 is stored in the storage chamber 25 and the opening/closing lid 35 is closed, the small tape cartridge is held in the storage chamber 25. 2 must be prevented from moving up and down. For this purpose, as a means for restricting the floating of the small tape cartridge 2, a first
As shown in the figure, floating regulating members 40, 40 are provided. Each floating regulating member 40 shown in the figure is made of a leaf spring, and the front and rear ends of the base plate 40a are caulked and fixed to the inner surface of the opening/closing lid 35.
0b is extended in a cantilevered manner. Each of the holding pieces 40b is bent so that the tip part is separated from the inner surface of the opening/closing lid 35, and when the small tape cartridge 2 is stored in the storage chamber 25 and the opening/closing lid 35 is closed, each lifting regulating member 4
The tip of the holding piece 40b of 0 acts elastically to press against the top surface of the small tape cartridge 2, and is always pressed so that the small tape cartridge 2 is firmly held against the bottom wall 21 of the adapter body 20. do. This presser piece 40
The pressing point b is on the line connecting the rotation centers of both tape reels 5 and 6 of the small tape cartridge 2, and is located on the lateral and outer side of each tape reel 5 and 6, and is located above and below the small tape car 1-ridge 2. Regulates contact with looseness. In such a case, store the small tape cartridge 2 in the storage chamber 25.
Even if there is a gap between the top surface of the small tape cartridge 2 and the inner surface of the opening/closing lid 35 when the opening/closing lid 35 is stored and the opening/closing lid 35 is closed and the closing lid is locked, the floating limit members 40 and 40 is made of a leaf spring, so regardless of the size of the gap, the holding piece 40b can hold the small tape cartridge 2.
The bottom wall 2 of the adapter body 20 is always in elastic contact with the top surface of the adapter body 20, thereby preventing the small tape cartridge 2 from floating up.
Press it on the 1st side. Therefore, the vertical height of the tape 4 built into the small tape cartridge 2 within the adapter main body 20 is always at the specified position, and the subsequent operation of pulling out the tape 4 from the small tape cartridge 2 within the adapter main body 20 can be performed smoothly. (7) Opening/closing mechanism for the front lid of the small tape cartridge When using the frozen candy adapter l, store the small tape cartridge 2 in the storage chamber 25 from above, and then open and close the front lid 1 of the small tape cartridge.
6 must be opened so that the tape 4 can be pulled out. Therefore, in the illustrated example, an engager 42 made of a plate spring is provided near the pivot joint on one side (on the right side in FIG. 1) of the opening/closing lid 35 and extends forward of the pivot shaft 37 when the opening/closing lid 35 is in the closed state. It will be set up as follows. When the small tape cartridge 2 is inserted into the storage chamber 25 with the opening/closing lid 35 open, a gap is formed between the stepped surface of the right side wall 12 of the small tape cartridge 2 and the front lid 16, as shown in FIG. The engaging claw 42a of the extending end of the retainer 42 is inserted into the vertical gap 43.
shall intervene. In this case, when the opening/closing lid 35 is closed against the upper surface of the storage chamber 25 against the helical spring 38, the front lid 16 is automatically moved against the spring member 19 by the engaging claw 42a of the engaging element 42. When the opening angle of about 45 degrees is exceeded, the front lid 16 automatically assumes an open position due to the spring member 19, and the opening/closing lid 35
When the front cover 1 is closed, the engaging claw 42a serves as a support for the front cover 1.
The front lid 16 is maintained in an open position by absorbing an external force applied to the front lid 16 by a finger or the like. Next, when removing the small tape cartridge 2 from the storage chamber 25, the front edge 35a of the opening/closing lid 35 contacts the front 1t16 and presses the front 1i16 downward as shown in FIG.
Front M16 is automatically closed. (8) Tape pull-out mechanism When the small tape cartridge 2 is stored in the storage chamber 25 of the ice candy adapter 1 and the opening/closing lid 35 is closed, the front lid 16 of the small tape cartridge 2 is set in the open state, but the adapter 1 Prior to loading the tape into the deck, the tape 4 from the small tape cartridge 2 must be pulled out to the front of the adapter body 20, with the same tape winding as in a standard large tape cartridge. Next, to explain the tape pull-out mechanism, FIG. 10 shows the state immediately after the small tape cartridge 2 is stored in the adapter main body 20. At this stage, the tape 4 built into the small tape cartridge 2 is moved to the left and right of the front. It is stretched between the tape guide members 7. Inside the adapter body 20, round pin-shaped tape pull-out members 70 and 71 are waiting in a vertical position on the front left and right sides of the storage chamber 25, and when the small tape cartridge 2 is inserted into the storage chamber 25 from above, the tape The drawer members 70 and 71 are relatively connected to the recesses 72 and 7 at the front end of the small tape cartridge 2.
3 from below and enters the inside of the tape 4 stretched between the tape guide members 7. The left tape drawer member 70 has a proximal end connected to the adapter main body 2.
The tape pull-out arm 76 is erected and fixed at the tip of a tape pull-out arm 76 that horizontally swings around a fixed support shaft 75 erected inside the tape pull-out arm 76 . As shown in FIGS. 7 and 8, the small tape cartridge knob 2 has a lower surface of the bottom wall of the case that is recessed in the left and right width direction at the front part, and the downward end of the tape drawer arm 76 is connected to the adapter. Case bottom wall 2 of main body 20
1 and the bottom wall of the case of the small tape cartridge 2. This tape drawer arm 76 is shown in FIGS. 10 and 14.
As shown in the figure, it is connected to a slide link 79 that slides in the left-right direction via a link 77 and a relay link 78. In the right lateral space inside the adapter body 20, there is an upper case 20.
A bell crank 81 which can be horizontally swung around a fixed support shaft 80 is supported on the inner surface of a, and a base end of a slide link 79 (the right end in FIG. 10) is attached to the short side of this bell crank 81.
are connected by engagement between the elongated hole and the pin. Further, in the right side space of the adapter body 20, as shown in FIGS. 15 and 16, a horizontal cam plate 82 is fixed along the inner surface of the upper case 20a. This cam plate 82 has two rows of curved elongated holes 84 with different centers of curvature that run in the front-rear direction.
Pins 86 and 8 having a diameter of 85 and penetrating through each long hole 84 and 85
Slide links 88 and 8 above and below the cam plate 82 via 7.
9 are arranged in an integrally connected state, and the upper slide link 88 and the tip of the long side of the bell crank 81 are connected by a link 90. On the other hand, on the pin 91 provided on the lower slide link 89,
Another tape pull-out arm 9 is inserted through the dogleg-shaped elongated hole 92.
3 are connected to each other, and the tape drawer member 71 on the right side is vertically provided at the vertical end of the arm 93. A tension spring 94 is mounted across this tape drawer arm 93 and the lower slide link 89 as shown in FIG.
Pull it to the side and apply pressure. Further, a notch 95 is provided on the side edge of the tape pull-out arm 93 to engage from the side with one of the pins 86 that connect the upper and lower slide links 88 and 89. 10 and 11, the bell crank 8
The base end of a manual operation lever 96 is pivotally connected to the support shaft 80 of 1, and the lever 96 and the bell crank 81 are connected to each other through a long hole 97 and a pin 9.
8, it is flexibly connected to allow relative rotation by a certain small angle. A tension spring 9 biases the bell crank 81 and the lever 96 in a direction in which they attract each other.
Attach 9. The tip of the operating lever 96 is connected to the rear wall 53 of the adapter body 20 through a left and right horizontally elongated slit 100 formed in the joint surfaces of the upper and lower cases 20a and 20b that constitute the adapter body 20.
It protrudes outward, and a knob 101 is fixed to the protruding end. On the outer surface of the rear wall 53 of the adapter body 20, a knob storage notch 102 is formed at approximately the center in the left-right direction as shown in FIG. A knob storage notch 104 is formed that straddles the virtual ridge line with the horizontal side wall 103, and the operating lever 96
At the swing end of the knob 101, each notch 102.1
04 respectively. On the other hand, since the notch 104 is open across the rear wall 53 and the right side wall 103 at the corner, when the operating lever 96 is swung from right to left in FIG. It can be easily hung from. Next, to explain its operation, in the state before the tape is pulled out from the small tape cartridge 2 stored in the adapter main body 20, as shown in FIG. are located at the front ends of the curved elongated holes 84 and 85, respectively. If the operating lever 96 is rotated clockwise from this state,
As shown in FIG. 11, the bell crank 81 rotates in the same direction, the slide link 79 moves to the left, and the left tape pull-out arm 76 moves horizontally counterclockwise around the support shaft 75. The tape 4 is first pulled out forward by the left tape pull-out member 70. As the bell crank 81 rotates clockwise, the upper and lower slide links 88 and 89 are guided by the long holes 84 and 85 and slide rearward thereof, causing the right tape drawer arm 93 to also horizontally swing. Then, the tape 4 is simultaneously drawn out forward by the right tape drawing member 71. At this time, the two long holes 84 and 85 have different centers of curvature, and the slide links 88 and 89 change their posture dually on the slide surface. Therefore, the movement trajectory P of the tape pull-out member 71 at the tip of the tape pull-out arm 93 is as shown in FIG.
It draws an intermediate curved line with a large curvature in the early stage and a small curvature in the latter half. In other words, at the beginning of the tape drawing movement, the forward movement component is large, and in the latter half, the movement component in the right lateral direction draws a compound arc. Therefore, while the front lid 24 of the adapter main body 20 remains in the closed position, the tape 4 can be pulled out to a large extent laterally and outwardly even if the front and rear space inside the front M24 is small. The ability to pull out the tape with the front cover 24 closed is extremely advantageous in preventing the tape 4 from coming into contact with other objects and being damaged before the adapter 1 is loaded onto the deck. be. Moreover, although the tape drawer member 71 is closest to the front end of the small tape cartridge 2 at the retracted position and reliably engages inside the tape 4, it comes into contact with the front edge of the small tape cartridge 2 at the beginning of movement. This interference can also be reliably prevented. Next, one connecting pin 86 of the slide links 88 and 89 is connected to the rear end of the long hole 84, and the other connecting pin 87 is connected to the long hole 85.
When reaching the bending point of the right side tape pull-out member 71, the small diameter portions at the upper and lower ends of the right side tape pull-out member 71 are fixed at a position near the right corner of the front end inside the adapter body 20, as shown in FIGS. 15 and 16. The receiver is stopped and supported by the letter-shaped engaging portion 106a. As the operating lever 96 is further swung, the tips of the upper and lower slide links 88 and 89 rotate clockwise around the bin 86 as shown in FIG.
Move to the rear end of 5. Then, as the link rotates, the bin 91 moves toward the rear end of the dogleg-shaped elongated hole 92, so that the tape pull-out arm 93 is relatively centered around the engagement point between the tape guide member 71 and the engaging portion 106a. is forced to rotate counterclockwise. Then, the engagement recess 107 formed on the outer edge of the distal end of the arm 93 fits into the locking protrusion 108 protruding from the receiver member 106, whereby the tape drawer arm 93 can hold the bottle 91, the receiver member 106, and the locking protrusion 108. It is fixed in a three-point supported state by the locking protrusions 108, the accumulated backlash of the link mechanism is absorbed, and the tape drawer member 71 is reliably positioned and supported by the receiver member 106 in a vertical position. Note that the upper and lower ends of the left tape drawer member 70 are connected to the L-shaped insertion portion 109a of the member 109 at the upper and lower ends of the receiver disposed at the left corner of the front end inside the adapter body 20.
(See Fig. 10) The upper and lower ends are supported by supports. On the upper wall of the adapter body 20 and the tape drawer arm 76,
Both ends of a click spring 115 having a loop portion in the middle are connected in a locking manner, and the tape pull-out arm 76 is moved by this spring 115 to the front pull-out position direction and the rear retraction position direction with the intermediate movement posture as the dead center. is energized to move. Therefore, the tape drawer member 70 also absorbs the accumulated backlash of the link mechanism, and the receiver is moved to the engaging portion 109 of the member 109.
A is pressed and biased to securely position and hold the tape in a horizontal position at the pull-out position, and it is held in the retracted position. When you move it to and fix it,
This position corresponds to the original position of the front left and right tape guide members in a standard large tape cartridge, and the tape 4 is stretched between the left and right tape drawer members 70 and 71. When the adapter 1 is loaded onto the deck from this state, the front of the adapter body 20! 24 is opened and the tape 4 is pulled out by the tape loading bin on the deck side toward the rotating head in front. Thus tape 4
is guided by both tape drawer members 70 and 71 and travels. (9) Drive mechanism for tape reel of small tape cartridge When the adapter 1 is loaded into the deck, the drive shaft of the deck example enters the left and right drive shaft insertion holes 22 and 23 provided transparently in the bottom wall 21 of the adapter body 20, respectively. The drive shaft inserted into the drive shaft insertion hole 22 on the left side engages with the hub hole of the tape reel 5 on the feeding side of the small tape cartridge 2. However, the take-up tape reel 6 of the small tape cartridge 2 and the drive shaft insertion hole 23 on the right side are separated, and a mechanism for rotationally driving the take-up tape reel 6 is required. For this purpose, a drive gear 124 is provided within the adapter body 20, which has a hub hole 123 that is substantially the same as the hub hole of the tape reel in the large tape cartridge, as shown in FIG. is installed freely in the radial direction, and the small tape cartridge 2
An idle gear 12 having upper and lower gear parts 125a and 125b between the gear part 11 formed on the outer periphery of the lower flange 10 of the take-up side tape reel 6 and the drive gear 124.
5, and the upper gear part 12 of the idle gear 1.25
5a is engaged with the drive gear 124 so as to freely thrust, and the lower gear section 125b is engaged with the gear section 11 of the take-up tape reel 6, respectively. In FIGS. 10, 17, and 18, the idle gear 125 is suspended from the lower side of a movable bracket 126 attached to the inner surface of the upper case of the adapter body 20 via a support shaft 127 so as to be able to move up and down within a certain range. It is supported and biased upward by a compression coil spring 128. Therefore, when the small tape cartridge 2 is inserted into the storage chamber 25 of the adapter body 20 from above, the lower gear portion 12 of the idle gear 125
Even if the reel gear part 11 does not mesh well with the reel gear 11, the idle gear 125 will once escape downward against the spring 128, and when the idle gear 125 starts driving and the meshing phase matches, the idle gear 125 will automatically pull up. This will result in normal engagement. As shown in FIG. 10, the bracket 126 is supported on the upper case 20a by engagement with a pin 129 and a long hole 130 so as to be rotatable within a certain angle range around the axis W° of the take-up tape reel 6. 1, and is biased to move by a tension spring 132 so as to cut into the drive gear 124 and the reel gear portion 11 in a pattern. Therefore, the idle gear 125
The drive gear 1 is always engaged with the beam-rugia part 11.
The gear 124 follows the free movement of the gear 124 and meshes with the gear 124 while always absorbing the play. 00) Tape winding mechanism of small tape cartridge onto tape reel The tape 4 pulled out from the small tape cartridge 2 is moved back to the small tape cartridge 2 when the tape pull-out members 70 and 71 are returned from the front position to the original position by lever operation. must be wound onto a tape reel. For this purpose, a mechanism is provided to take up and rotate the take-up tape reel 6 only when the operation lever 96 is returned to the counterclockwise direction. That is, on the tip side of the operation lever 96, as shown in FIGS. 17 and 18, a fan-shaped gear 134 that rotates around the lever support shaft 80 is fixed to the lever 96 and the body, and a A rotating shaft 135 is erected at a predetermined position, and the two ends of the rotating shaft 135 are rotatably supported by a bracket 136 fixed to the upper case 20a, and the lower end is rotatably supported by a bearing 137 of the lower case 20b. A pinion gear 138 that constantly meshes with the fan-shaped gear 134 is fixed to the upper part of the rotating shaft 135, a large-diameter gear 139 is fixed to the lower end of the rotating shaft 135, and a swinging arm 140 is loosely fitted and supported at the upper and lower middle of the rotating shaft 135. A support shaft 141 is fixed downward to the tip of the support shaft 141, and large and small gears 142 and 143 are loosely fitted and supported on the upper and lower sides of the support shaft 141, respectively. The upper large gear 142 engages with the drive gear 124 in a detachable manner, and the lower small gear 143 always engages with the large diameter gear 139. A friction plate 145 made of synthetic resin is interposed between the upper and lower large and small gears 142 and 143, and a compression spring 146 attached to the lower end of the support shaft 141 causes the friction plate 1 to move between the large and small gears 142 and 143.
45 is elastically clamped, thereby forming a friction clutch 147 that transmits power only with a constant torque reduction. On the lower surface of the sector-shaped gear 134, small-diameter concave cam surfaces 149 and 150 are formed at both ends, and an arcuate cam surface 151 concentric with the center of the gear is formed in the middle, and a cam follower 152 that comes into contact with these cam surfaces is formed. A helical spring 153 is loosely fitted to the rotating shaft 135 and is interposed between the cam follower 152 and the arm 140, and a weak spring 155 that pulls the arm 140 outward is installed. In such a case, when the operation lever 96 is in the position before the tape drawer operation as shown in FIG. 19, the cam follower 1
52 faces the recessed cam surface 149 at one end of the fan-shaped gear 134 and the cam follower 152 is allowed to move freely, so the swing arm 140 is pulled by the tension spring 155 and the gear 14
2 is removed from the drive gear 124. Next, when the operating lever 96 is swung clockwise as shown in FIG. 20 for tape draw-out operation, the sector gear 134
Since both rotate in the same direction, the cam follower 152 rides on the arcuate cam surface 151 and rotates counterclockwise. that time,
The swing arm 140 is prevented from swinging outward any further by a stopper (not shown). When the operating lever 96 is swung to the tape withdrawal end position, the cam follower 152 is disengaged from the arcuate cam surface 151 and rotated back clockwise along the other recessed cam surface 150, as shown in FIG. Even in this state, the swing arm 140
does not move, and gear 142 is disengaged from drive gear 124. Therefore, even if the adapter 1 is loaded on the deck and the drive shaft on the deck side drives the drive gear 124 to rotate, no power is transmitted to the gear 142. However, when the adapter 1 is removed from the deck after use and the operating lever 96 is swung counterclockwise, the cam follower 152 is forcibly rotated clockwise as shown in FIG. Since the swing arm 140 rides on the spring 155 due to the tensile force of the helical spring 153,
The gear 142 at the tip of the swinging arm 140 swings against the
meshes with the drive gear 124. When the operation lever 96 is returned to its original position, the rotation of the pinion gear 138 that engages with the fan-shaped gear 134 is transmitted to the drive gear 124 via each gear group, and the take-up tape reel 6 is moved to the idle gear 125 to release the tape. Rotates in the winding direction. In reality, the tape reel 6 rotates approximately five times due to the combination of large and small gears. As a result, the tape 4, which had been drawn out to the front of the adapter main body 20 as the left and right tape drawing members 70 and 71 moved in and out, is wound onto the tape reel 6 without slack. However, if, for example, the tape 4 is fully wound on the winding-side tape reel 6, the amount of tape winding will be greater than the amount of tape being pulled out. In that case, the aforementioned friction clutch 14
7 is activated to prevent undue tension from being applied to the tape 4. A little before the operation lever 96 reaches the return end (approximately 7 degrees), the tape drawer link mechanism reaches its operating limit, but the bell crank 81 and the operation lever 96 are connected to the elongated hole 97 and the bin 98.
The operating lever 96 provides flexibility by engaging with the operating lever 96.
can further swing against the spring 99, and the tape drawer member 7
The winding operation is also carried out after the 0.71 is set in and out, and the winding-side tape reel 6 is rotated approximately half a turn. Therefore, the final winding of the tape 4 is performed with a tension corresponding to the set torque of the friction clutch 147, and the tape 4 is wound tightly.

[Brief explanation of drawings]

FIG. 1 is an external perspective view of an adapter and a small tape cartridge according to the present invention as seen from the rear side, and FIG. 2 is a perspective view of them as seen from the front. Figure 3 is a plan view mainly showing the storage chamber for the adapter;
The figure is a sectional view taken along the line AA in FIG. 3, FIG. 5 is a sectional view taken along the line 13-B in FIG. 3, and FIG. 6 is a sectional view taken along the line C--
A sectional view taken along line C, FIG. 7 is a sectional view taken along line D-D in FIG. 3,
FIG. 8 is a partially cutaway side view of the storage chamber with the lid open, and FIG. 9 is a longitudinal sectional view showing how to extract the small tape cartridge from the storage chamber. Figures 10 to 16 show the tape pull-out mechanism. Figure 10 is a plan view showing the state before the tape pull-out operation, Figure 11 is a plan view showing the state during the tape pull-out operation, and Figure 12 is a plan view showing the state before the tape pull-out operation. A plan view showing the state after the tape drawer operation,
Fig. 13 is a sectional view taken along the line G-G in Fig. 12, Fig. 14 is a sectional view taken along the line H-H in Fig. 12, Fig. 15 is a schematic perspective view of the tape drawer link mechanism, and Fig. 16 is a tape drawer link. It is an exploded perspective view showing a part of a mechanism. Figures 17 to 22 show the tape winding mechanism, with Figure 17 being a longitudinal sectional view of the main parts, Figure 18 being a perspective view of the main parts, and Figures 19 to 22 showing the operating lever. FIG. 19 is a plan view showing the relationship between the movement and the tape winding mechanism over time, and FIG. 19 is before the tape is pulled out, FIG. 20 is during the tape being pulled out, FIG. 21 is when the tape is being pulled out, and FIG. 22 is during operation. The state in which the lever is operated to return and the tape is being wound is shown. 1...Adapter, 2...Small tape cartridge, 3...Main body case, 4...Tape, 5 ・ 6 ・ 12 ・ ・ 20 ・ ・ 21 ・ ・ 25 ・・ 26 ・ ・ 27 ・ ・ 30 ・ ・ 35 ・ ・ 37 ・ ・ 39 ・ ・ 40 ・ ・ 40a ・ 40b ・ 70 ・ 7 ・Tape reel, ・Side wall of small tape cartridge, ・Adapter body, ・Bottom of adapter body Wall, ・Storage chamber, ・Left and right side walls of the storage chamber, ・Stepped surface, ・Top surface of adapter body, ・Opening/closing lid, ・Pivot, ・Reinforcement rib, ・Lifting restriction member, ・Board of floating” two-piece restriction member, - Pressing piece for lifting control member, ...Tape drawer member. Diagram

Claims (1)

[Claims] (1) The adapter body (20) is formed to have substantially the same external shape as the large tape cartridge, and the small tape cartridge (2) can be freely inserted and removed from one side of the adapter body (20). storage room (25
), The adapter body (20) is provided with an opening/closing lid (35) that can be closed and opened on the top of the opening of the storage chamber (25), and the adapter body (20) is equipped with an opening/closing lid (35) that can be closed. The opening/closing lid (35) is equipped with a closing/closing locking mechanism for holding the cartridge in its position, and the inner surface of the opening/closing lid (35) is brought into contact with the top surface of the small tape cartridge (2) stored in the storage chamber (25) to prevent the small tape cartridge from becoming small. An adapter for a small tape cartridge, characterized in that it is equipped with a means for regulating lifting of the tape cartridge (2).