JPH02192062A - Cassette loading device - Google Patents

Abstract

PURPOSE:To shorten a loading/unloading time and to surely load a cassette at any size by providing a first cassette holder to reciprocatively move in horizontal and vertical directions in a device main body, and a second cassette holder to relatively reciprocatively move in the horizontal direction with respect to the first cassette holder. CONSTITUTION:A first cassette holder 20 can freely reciprocatively move in the horizontal and vertical directions along respective guide grooves 4a to 4c on both side plates by a first cassette holder driving mechanism 40 provided between the both side plates of the device main body and the first cassette holder 20. A second cassette holder 50 can freely reciprocatively move along a pair of guide grooves 22a and 22b of the first cassette holder 20 by a second cassette holder driving mechanism 60 provided between the first cassette holder 20 and the second cassette holder 50. Thus the time to load/unload each cassette can be shortened as much as possible, and the cassette at any size can be surely loaded on the cassette loading position inside the device main body.

Description

[Detailed description of the invention] The invention will be explained in the following order.

A. Industrial fields of application B9 Summary of the invention C1 Prior art 1 Problems to be solved by the invention 81 Means for solving the problems F1 Effects G. Embodiment G1. Schematic structure of the main body of the device G2. Configuration Gs of the cassette guide mechanism, configuration G4 of the first cassette holder and its drive mechanism. Configuration of the second cassette boulder and its drive mechanism G5. Configuration of lid opening/closing mechanism G4. Effects of the Embodiments H Effects of the Invention A, Industrial Field of Application This invention relates to a cassette mounting device used in a front-loading cassette video tape recorder (VTR), etc., and particularly relates to a cassette mounting device that is used in a front-loading cassette video tape recorder (VTR), etc. This invention relates to a cassette mounting device that can selectively use different cassettes.

B8 Summary of the Invention The present invention provides a cassette loading device that uses many types of cassettes of different sizes and allows the cassettes to be loaded and unloaded using a cassette holder that holds each of the cassettes. By making the holder a double structure of a first cassette holder that reciprocates horizontally and vertically within the apparatus main body, and a second cassette holder that reciprocates horizontally relative to the first cassette holder, The time required for loading and unloading can be shortened as much as possible, and any size cassette can be reliably installed at the cassette installation position within the main body of the apparatus.

C8 Prior Art For example, a cassette loading device is disclosed in Japanese Patent Application Laid-Open No. 60-76049. This will be explained in detail with reference to FIGS. 13 to 18. Reference numeral 100 is a cassette mounting device applied to a front-loading type cassette video tape recorder.

This cassette loading device 100 has three types of cassettes of different sizes, large, medium and small, C=, CI C3 (large, medium, small cassette C+,
It has a cassette insertion opening 102 into which cassettes C2 and C3 (hereinafter collectively referred to as cassettes C) are inserted. A cassette holder 103 that holds any one of the cassettes C inserted through the cassette insertion opening 102 faces the cassette insertion opening 102 . This cassette holder 1
03 is formed into a substantially U-shape with a bottom portion 103a and both side portions 103b, 103b.
A pair of rack plates 104, 104 are fixed to b.

The lower corner portions of the pair of rack plates 104 near the cassette insertion slot 102 are L-shaped rack portions 104a, and the remaining three corners are provided with guide rollers 1.
05, 105, 105 are provided protrudingly. Each guide roller 105 protruding from each rack plate 104 is inserted into three inverted-shaped guide grooves 101c, +01c, and 101c formed on both sides 101b and 101b of the apparatus main body 101. In addition, the pair of rack plates 104, 10
Each of the four rack portions 104a meshes with a pair of pinions 107, 107 rotated by a motor 106. As a result, the cassette holder 103 can be attached to both sides 101.
The cassettes C can be reciprocated horizontally and vertically along the guide grooves +01c of the cassettes B and 101b, and the cassettes C can be moved between a pair of reel stands (not shown) serving as cassette mounting positions from the cassette insertion opening 102. loading,
It is now possible to unload.

As shown in FIGS. 15 to 17, on the back side of the bottom 103a of the cassette holder 103, there is a pair of stopper parts 103c103c protruding from the tip of the cassette boulder 03 for holding the medium and small cassettes C2 and C3. A reciprocating mechanism 110 for transporting the cassette is provided. The cassette reciprocating mechanism 110 includes a pair of support plates 111, 1127 fixed to the distal end and base end sides of the back surface of the bottom 103a of the cassette holder 103, and the pair of support plates 111.
The frame was passed between 112 and the screw screw 113 passed through it.
and a pair of guide shafts 114, 114, a movable table 115 that is screwed onto these screw screws 113 and the pair of guide shafts 114, 114 and moves in the front-rear direction, and this movable table 1.
A pair of locking pins 117, 117 on the upper surface of 15 are biased upward by the elastic force of a leaf spring l16 and are movable up and down;
The motor 119 rotates the screw screw 113 via a belt 118 or the like. The pair of locking pins 117, 117 protrude from a pair of elongated holes 103d, 103d formed in the front-rear direction between the tip and base ends of the bottom 1032L of the cassette holder 103 to the upper surface of the bottom 103a. The pair of locking pins 117, 117 protruding from the upper surface of the bottom portion 103a are attached to the medium and small cassettes Ct.

It can be freely engaged and detached from an engagement hole a formed at the bottom of C3.

When the large cassette C1 is mounted on the pair of reel stands of the cassette mounting device 100, the large cassette C1 is inserted into the cassette insertion opening 102 of the main body 101 of the device. Then, the sensor 120 provided on the cassette holder 103 determines the size of the large cassette and the small cassette C, and the sensor 120 detects that the front surface of the large cassette C3 has been inserted to a predetermined position in the cassette holder 103. Ru.

Based on this determination of the size of the cassette, the interval between the pair of reel stands is automatically adjusted to match the size of the large cassette C1. Further, a sensor 121 provided on the pair of stopper portions 103c, 103c side of the cassette holder 103
Accordingly, it is detected that the front surface of the large cassette C4 comes into contact with the pair of stopper portions 03c and 103c, and that the cassette insertion is completed. At this time, the pair of locking pins 117, 117 of the cassette reciprocating mechanism 110 are pushed down by the bottom of the large cassette C3. Thereafter, the cassette holder 103 is driven by the motor 106 to horizontally move and descend above the pair of reel stands along each guide groove 101C, whereby the large cassette CI is loaded and mounted on the pair of reel stands. be done. Incidentally, the unloading of the large cassette C8 is performed by the reverse operation of the above-mentioned loading.

Further, as shown in FIG. 17, the cassette insertion slot 10
When the medium force set C2 or the small cassette C3 is inserted into the medium power set C2 or the small cassette C3, the size of the medium force set C7 or the small cassette C3 is determined by the sensor 122 or the sensor 123 provided in the cassette holder 103. The sensor 122 or the sensor 123 selects the medium power set C2 or the small cassette C3.
It is detected that the front surface of the cassette holder 103 has been inserted to a predetermined position. Based on this determination of the size of the cassette, the distance between the pair of reel stands is automatically adjusted to match the size of the medium power set C2 or the small cassette C3. 117
, 117 engage with the engagement hole a of the medium force set C2 or the small cassette C3. The medium force set C2 or the small cassette C3 moves forward on the bottom part 103a of the cassette holder 103 by this pair of locking pins 117, 117, and its front surface is attached to the pair of stopper parts 103c, 103 of the cassette boulder 103.
Move until you hit c. Then, the sensor 121 detects that the front surface of the medium force set C2 or the small cassette C3 is connected to the pair of stopper portions 103c.

103c, it is detected that the cassette insertion has been completed. Thereafter, similarly to the cassette loading of the large cassette CI, the cassette holder 103 is driven by the motor 106 to move horizontally and downwardly along each guide groove 101c to above the pair of reel stands, thereby causing the medium force setting. C2 or small cassette C3 is loaded and installed on the pair of reel stands.

The unloading of the medium-power set C2 or the small cassette C3 is performed by the reverse operation of the above-mentioned loading, but when the cassette is ejected, the medium-sized cassette C2, C3
The cassette holder 1 is moved by the cassette reciprocating mechanism 110.
The rear surface position of the large cassette CI when the cassette is ejected is aligned with the rear surface position of the medium and small cassettes C2 and C3.

Further, when inserting or ejecting a cassette, a guide groove provided at the center of the bottom of each cassette C is engaged with a guide protrusion 103e projecting from the center of the bottom +03a of the cassette holder 103. By being inserted and ejected, each cassette C is always positioned at a predetermined position in the cassette holder 103.

D1 Problems to be Solved by the Invention However, in the conventional cassette loading device 100, as shown in FIGS. , small cassette C2, G
In order to attach the cassette holder +03 to a pair of reel stands, there is a disadvantage that the horizontal stroke S becomes longer due to the difference in cassette size, and it takes a longer time to move the cassette holder +03 in the horizontal direction. Therefore, there is a disadvantage that the time required for loading and unloading the cassette C1, especially the small and medium cassettes C2 and G3, becomes long.

Therefore, the present invention can shorten the cassette loading and unloading time as much as possible, and
To provide a cassette mounting device capable of surely mounting a cassette of any size at a cassette mounting position.

E. Means for Solving the Problems The cassette loading device of the present invention comprises a device main body having a cassette insertion slot into which any one of many types of cassettes of different sizes is inserted, and a device provided in the device main body. a first cassette holder that loads and unloads each of the cassettes by reciprocating horizontally and vertically along a guide portion; and a first cassette holder provided between the first cassette holder and the apparatus body; a first cassette holder drive mechanism that reciprocates horizontally and vertically along the guide section, and a second cassette holder that holds each of the cassettes and reciprocates horizontally with respect to the first cassette holder. , a second cassette holder drive mechanism provided between the second cassette holder and the first cassette holder to reciprocate the second cassette holder horizontally relative to the first cassette holder.

F. The second cassette holder, which holds various types of cassettes with different action sizes, is movable relative to the first cassette holder, which reciprocates the main body of the apparatus in the horizontal and vertical directions. Horizontal travel time is reduced as much as possible. As a result, the time for loading and unloading each cassette is significantly reduced. Moreover, each cassette is reliably installed at the cassette mounting position and is reliably ejected into the cassette insertion slot.

G. Example Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.

G8. Schematic structure of the main body of the apparatus In FIG. 1, reference numeral 1 denotes a cassette loading device applied to a front-loading type cassette video tape recorder. The device main body 2 of the cassette loading device 1 includes a rectangular plate-shaped chassis 3, a pair of left and right side plates (side portions) 4, 4 fixed vertically upright from both ends of the chassis 2, and a pair of side plates 4, 4. The rack is constructed in a box shape by a front plate 5, which is fixed between the front ends of the racks 3 and 3, and a top plate 6, which is fixed between the upper ends of the pair of side plates 4, 4. There is.

At predetermined positions on the pair of side plates 4.4 of the device main body 2, three abbreviated guide grooves (guide portions) 4a, 4b4c consisting of a horizontal portion (on the front plate 5 side) and a vertical portion are arranged symmetrically. They are formed respectively. Moreover, above the front plate 4 of the apparatus main body 2, there are three types of cassettes C, large, medium and small, of different sizes.
C2, C3 (These large, medium, and small cassettes C+, C2
, C3 are collectively referred to as each cassette C). Furthermore, a cassette holder 8 for holding each of the cassettes C is provided in the cassette insertion lower part of the main body 2 of the apparatus.

G2. Structure of Cassette Guide Mechanism A cassette guide mechanism 10 for guiding each cassette C to the cassette holder 8 is disposed at the lower part of the cassette insertion lower. As shown in FIG. 1.5, in this cassette guide mechanism IO, each base portion 12a is rotatably supported via a shaft 11 installed between a pair of side plates 4.4 of the device main body 2. , a pair of left and right guide members 12.12 that guide the medium cassettes CI, C2 to the cassette holder 8, and a curved medium force setting guide surface +2b of the pair of guide members 12.12, respectively. In conjunction with the rotation of each of the guide members 12 located on the opposite side.
- A pair of stopper members 13, 137 provided in the center of the cassette insertion lower so as to be freely retractable by rotating around the axis 11;
．． A pair of guide members 14.13 are rotatably supported on the shaft 11 between the bases 14a, and guide the small cassette C3 to the cassette holder 8. It is roughly composed of In:.

To be more specific, the pair of guide members 12.12 are molded from synthetic resin, are biased by a spring 15 interposed in the shaft 11 to maintain a horizontal state, and are pressed against the neutral force set guide surface +
2b can be freely rotated downward about the shaft 11 by pushing downward with the intermediate force set C1°C2. Further, the side plate 4 side of the pair of guide members 12.12 serves as a large cassette/sort guide surface 12c, and the medium setting guide surface 12b of the pair of stopper members 12.12 serves as a guide surface for the small cassette. Each guide member 14 side has a small cassette guiding tapered surface 12d.

The pair of stoppers 13.13 are molded from synthetic resin, and the front surface 13a serves as a stopper surface that comes into contact with the front surface of the small cassette C3. As shown in FIG. 5, the stopper 13 on the right side is connected to the guide member I2 on the left side via a connecting rod 16, and the stopper I3 on the left side is connected to the guide member I2 on the right side via a connecting rod 17. It is. As a result, the pair of guide members 12.12 and the pair of stopper members 13.13 are connected to each other in a cross state. Even if you try to insert it, the guide member 12 on the right side and the stopper member 1 on the left side
3 rotate downward in conjunction with each other, but as shown in FIG. 8, the right stopper member 13 remains upright, making it impossible to insert the small cassette C3 and causing incorrect insertion. It is designed to be prevented.

The pair of guide members 14.degree. I4 for guiding the small cassette are also molded from synthetic resin, and each has a small cassette guide surface 14b in the form of a curved surface. Further, the pair of guide members 14.14 are urged to maintain a horizontal state by a spring (not shown) interposed in the shaft I1, etc., and the small cassette guide surface 14b is pushed downward by the small cassette C3, so that the shaft It is rotatable downwards about 11.

Further, as shown in FIG. 1, the pair of guide members 14
．． The shaft 11 between 14 is made of synthetic resin.

Two small sets of auxiliary stopper members 18, 18, 19, 19 are rotatably supported. Each of these auxiliary stopper members 18
．． 19 is biased to maintain an upright state by a spring (not shown) interposed in the shaft 11 etc., and the pair of small auxiliary stopper members 19.19 are pushed by the base end 51d of the second cassette holder 50, which will be described later This allows all the auxiliary stopper members 18, +8.19, 1.9 to be tilted forward.

G3. Structure of the first cassette boulder and its driving mechanism The cassette holder 8 holds each of the cassettes C, particularly the large, medium force set C+, and C2, and is L-shaped formed on both side plates 4.4 of the apparatus main body 2. Each guide groove 4a, 4b,
a first cassette holder 20 that loads and unloads each of the cassettes C onto a pair of reel stands 9.9 disposed on the chassis 3 by reciprocating horizontally and vertically along the cassette 4c; The second cassette holder 50 holds each of the cassettes C, particularly the small cassette C3, and is movable horizontally reciprocally inside the first cassette holder 20 at the same time as the first cassette holder 20 moves. ing.

The first cassette holder 20 has a pair of outer plates 22.22 each formed by bending and forming a cassette receiver 21 that projects horizontally inward to the front, and a rack is passed between the upper front portions of the pair of outer plates 22.22. fixed at the front, large, medium force set C
,, A connecting plate 23 having a cassette holding part 23a that presses the upper surface of C2, and three guide grooves 4- on both side plates 4.4, which are rotatably supported on the outside of the pair of outer plates 22.22. The rotation of the three guide rollers 24 24.24 inserted into the cassette receivers 24a, 4b, and 4c and the detection lever 25 that protrudes into the rectangular hole 21a formed in the one cassette receiver 21 (left side in the figure) Determines insertion of cassette CI,
The type sensor 26 moves and aligns the pair of reel stands 9.9 to the positions of the reels L, L, of the dog cassette CI.
It is made up of.

Each guide roller 24 is provided with each guide groove 4a, 4b so that the lower part of the pair of outer plates 2222 does not open outward.
, 4c. In addition, each guide roller 2
4 is when the first cassette holder 20 is up (when moving horizontally)
It also plays the role of positioning.

Further, on the cassette insertion lower side of the inner surface of the right side plate 4, a first detection lever 27 is pressed and released by a rib 21b protruding from the lower part of the other cassette receiver (right side in the figure) 21. A first switch 28 is provided to detect the up position (horizontal forward position) of the cassette holder 20.

Furthermore, a first cassette holder is mounted near the guide groove 4b on the inner surface of the right side plate 4 by the rotation of a detection lever 29 that rotates backward when the guide roller 24 comes to the corner of the guide groove 4b. 20 is provided with a second switch 30 for detecting the position where the movement changes from horizontal movement to vertical movement, and the guide roller 24 is located near the guide groove 4C on the inner surface of the right side plate 4, and the guide roller 24 is placed in the vertical part of the guide groove 4c. The third cassette holder 20 detects the down position of the first cassette holder 20 by the rotation of the detection lever 31 that rotates backward when it reaches the lower end.
A switch 32 is provided.

The first cassette holder 20 is driven by a first cassette holder drive mechanism 40 disposed between the first cassette holder 20 and both side plates 4 of the apparatus main body 2.
It is possible to freely reciprocate horizontally and vertically along each guide groove 4a, 4b4c of 4. This first cassette holder drive mechanism 40 is fixed to the inner surfaces of the pair of outer plates 22, 22 so as to face each other, and includes a pair of rack plates 41.
and each rack part 4]a of this pair of rack plates 41.41
A pair of pinions 42, 42 are meshed with each other and are rotatably supported by the side plates 4, 4, and this pair of pinions 42.
, 42 through a pair of first intermediate gears 43.44, and rotatably supported by the side plates 4.4, and A first gear 46 is meshed with two intermediate gears 44 and is fixed to a shaft 45 rotatably supported between the side plates 4.4, and a second intermediate gear on the left side is fixed to the left end of this shaft 45. 44 through a second gear 47, and a motor 4 in which a worm gear 49b fixed to the left side plate 4 and fixed to the rotating shaft 49a is meshed with the second gear 47.
It consists of 9.

G4. Structure of the second cassette holder and its driving mechanism The second cassette bolts 50 that hold each cassette C are formed within the pair of outer plates 22.22 of the first cassette holder 20, respectively. It is possible to reciprocate horizontally with respect to the first cassette holder 20 along each pair of guide grooves 22a, 22a. The main body 51 of the second cassette holder 50 includes a bottom plate portion 51a, both side plate portions 51b, 51b standing vertically from both sides of the bottom plate portion 51a, and both side plate portions 51b, 51b.
A cassette holding plate part 51 having a pair of cassette holding rollers 52, 52 has a rack fixed between the upper and front parts.
It is formed into a rectangular cylindrical shape by c. The bottom plate part 51a of the second cassette holder main body 51 is located slightly above the pair of cassette receivers 21.21 of the first cassette holder 20, and each cassette is placed on the base end part 51d provided at the center. A convex guide 53 is provided to prevent incorrect insertion of C and to position it in the left and right direction. Further, a neutral force set C3 is provided at a position near the left cassette receiver 21 on the bottom surface 51a of the second cassette holder main body 51 by rotating a detection lever 54 that protrudes from a rectangular hole 51e formed in the bottom portion 51a. The pair of reel stands 9.
A type sensor 55 is arranged to move and match the reel L2L2 of the medium force set C2. moreover,
A pair of elongated holes 51f, 51f are formed in the tip side of the bottom plate 51a so as to form an inverted V shape. The pair of elongated holes 51f, 51f have pins 57 protruding from the tips of a pair of levers 56 and 56 that are pivotally supported by pins on the lower surface of the bottom 512L.
．． 57 is a protrusion.

A loader start switch 58 for starting loading of each cassette C is provided at the base of the lever 56 on the left side. The lever 56 on the left side operates the loading start switch when each cassette C is ejected by a cassette pushing mechanism (not shown) provided between the first cassette holder 20 and the second cassette holder 50. 58 can be turned off.

Further, both side plate portions 51 of the second cassette holder main body 5I
A pair of guide pins 59 and 59 are protruded from b and 51b to be inserted into each pair of guide grooves 222L and 22a of the pair of outer plates 22 and 22 of the first cassette holder 20, respectively.

The second cassette holder 50 is driven into each pair of guide grooves 22a, 22a of the first cassette holder 20 by a second cassette holder drive mechanism 60 disposed between the first cassette holder 20 and the second cassette holder 50. It is possible to move back and forth along the line. This second cassette holder 60 meshes with a pair of racks 61.61 fixed to the upper ends of both side plate parts 51b and 51b of the second cassette holder 50, and the first cassette holder 20
Pinions 63 and 63 are fixed to both sides of a shaft 62 rotatably supported between the upper ends of a pair of outer plates 22 and 22, and pinions 63 and 63 are fixed to the left end of this shaft 62 and rotatably attached to the left outer plate 22. A drive gear 65 meshing with the supported first intermediate gear 64
Then, the worm gear 66b fixed to the left side outer plate 22 and the rotating shaft 66a is connected to the second. 3rd intermediate gear 67.6
A motor 6 meshed with the first intermediate gear 64 via a motor 8.
It consists of 6.

Furthermore, at a predetermined position between the first cassette bolter 20 and the second cassette main body 50, there is a pre-detection switch 69 for detecting the forward position of the second cassette holder 50, and a post-detection switch 69 for detecting the backward position of the second cassette holder 50. A detection switch 70 is provided. Moreover, FIG. 12 shows each sensor 26, 55 and each switch 28, 30, 32 when inserting the medium force set C2.
, 5869.70, each output waveform diagram is shown when each motor 49, 66 rotates in forward and reverse directions.

G5. Structure of Front Lid Opening and Closing Mechanism The cassette insertion lower is opened and closed by a lid 7I. This lid 7I is rotatable by a shaft 72 extending between both side plates 4.4 of the main body 2 of the apparatus. This shaft 72 is rotated by a lid opening/closing mechanism 80.

The lid opening/closing mechanism 80 is supported by a gear 81 fixed to the right end of the shaft 72 and a pin pivoted horizontally downward in the guide groove 4a on the inner surface of the right side plate 4 of the device main body 2 so as to be able to rotate vertically. an actuating plate 82 that rotates as the guide roller 24 moves; lever 83, a fan-shaped gear 84 fixed to the tip of this lever 83 and meshing with the gear 81, and these actuating plates 82. It is composed of coil springs 85 and 86 that pull and urge the fan-shaped gear 84 downward. As a result, when the guide roller 24 moves a little toward the corner in the guide groove 4a, the actuating plate 82 rotates downward a little to open the front lid 7I, and when it reaches the corner, the front lid 71 closes. ing.

According to the cassette mounting device 1 of the above embodiment, the device main body 2
When the large cassette C1 is mounted on the pair of reel stands 9.9 located at the cassette mounting position inside, the large cassette C4 is inserted into the cassette insertion lower of the main body 2 of the apparatus. Then, the type sensor 26 provided on the first cassette holder 20 determines the size of the large cassette C1, and the type sensor 26 detects that the front surface of the large cassette C1 is connected to the pair of stopper portions 51g of the second cassette holder 50. , it is detected that up to 51g has been inserted. Based on this determination of the size of the cassette, the distance between the pair of reel stands 9.9 is automatically adjusted to match the size of the large cassette C1, and the pin 57 moved to the pair of stopper portions 51g and 51g side The start switch 58 is turned on,
Each motor 49.66 is driven (each rotating shaft 4.9a, 66a
(for example, normal rotation), and the first cassette holder 20 is horizontal.

Vertical movement and horizontal movement of the second skein/sotopolder 50 are performed simultaneously. Therefore, although the horizontal stroke of the cassette holder 8 is long, since the first cassette holder 20 and the second cassette holder 50 move simultaneously, the horizontal movement time of the cassette holder 8 can be shortened compared to the conventional one.

As a result, loading time can be shortened.

Moreover, the first cassette holder 20 and the second cassette holder 5
0 are driven at the same time, and the loading start and the adjustment of the interval between the pair of reel stands 9 and 9 are performed at the same time, so after confirming the position of the second cassette holder 50 and the position of the pair of reel stands 9. , it is necessary to lower the first cassette holder 20. This confirmation is done using the second switch 30.
This is done by In this way, the pair of reel stands 9
After confirming the position of the large cassette 9, the large cassette CI is loaded and mounted on the pair of reel stands 9.9.

Further, although the unloading of the large cassette C1 is performed by the reverse operation of the above-mentioned loading, it is necessary to prevent the large cassette C from coming out from the cassette insertion lower too much at the time of ejection. For this reason, when the first cassette holder 20 passes the corner of the guide groove 4a and reaches a horizontal portion, it stops moving, and then only the second cassette boulder 50 moves horizontally.

Further, loading and unloading are performed in the same manner as the medium power set C3 or the small cassette C3.

When loading the small cassette C3, the pair of reel stands 9.9 are set in advance to reel L3.9 of the small cassette C3.
Since the interval is set to L3, the pair of reel stands 9.9 are not shifted at the start of loading.

Furthermore, when inserting the small cassette C3 into the cassette insertion lower, for example, even if you try to hold the small cassette C3 vertically and insert it into the cassette insertion lower from the right guide member 12 side, the right guide The member 12 and the left stopper member 13 rotate downward in conjunction with each other, but as shown in FIG. 8, the right stopper member 13 remains in an upright state. Member 13
closes the cassette insertion lower and prevents incorrect insertion of the small cassette C3. As a result, as shown in FIG. 1O, when each cassette C is inserted, the convex guide 53 protruding from the center of the bottom plate portion 51a of the second cassette holder 20 is provided at the center of the bottom of each cassette C. The cassettes C are inserted into the cassette holder 8 by being engaged with the guide grooves thereof, and each cassette C is prevented from being erroneously inserted into the cassette holder 8, and the cassettes C are set while being properly positioned in the horizontal direction. As a result, any size cassette can be reliably mounted at the cassette mounting position.

H8 Effects of the Invention As described above, according to the present invention, the first cassette holder that holds any one of many types of cassettes of different sizes is reciprocated in the horizontal and vertical directions within the main body of the apparatus.
It has a double structure consisting of a cassette holder and a second cassette holder that holds each cassette and moves back and forth horizontally relative to the first cassette holder, so the time required to load and unload each cassette can be reduced. In addition to being able to shorten the length of the cassette, any size cassette can be reliably mounted at the cassette mounting position within the main body of the apparatus.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a cassette loading device showing an embodiment of the present invention, Fig. 2 is an exploded perspective view of the main parts of the device, Fig. 3 is a schematic side view of the device, and Fig. 4 is a cassette holder. 5 is a plan view of the cassette guide mechanism, FIG. 6 is a side view of the cassette guide mechanism, FIG. 7 is a side view of the cassette guide mechanism showing the guidance of the small cassette, and FIG. 8 is a side view of the cassette guide mechanism. Side view of the cassette guide mechanism showing the state of preventing incorrect insertion of the cassette, No. 9
The figure is a side view of the front lid opening/closing mechanism that opens and closes the cassette insertion slot.
FIG. 1O is a schematic plan view showing the relationship between the cassette and the reel stand, FIG. 11 is a schematic side view of the cassette loading device showing the loading and unloading movement states of each cassette,
Fig. 12 is an output J waveform diagram of each sensor etc. when inserting a medium force set, Fig. 13 is a schematic side view of the cassette loading device when inserting a conventional cassette, and Fig. 14 is a diagram showing the output of the cassette when inserting a conventional cassette. Schematic side view of cassette loading device, No. 15
The figure is a bottom view of a conventional cassette holder, Figure 16 is a perspective view of a conventional cassette reciprocating mechanism, Figure 17 is a sectional view of a conventional cassette holder, and Figure 18 is a conventional example of insertion of each cassette. It is a top view of the cassette holder which shows a state. 1... Cassette mounting device, 2... Device main body, 4a. 4b 4c... Guide groove (guide portion), 7... Cassette insertion port, 20... First cassette holder, 40... First cassette holder drive mechanism, 50 Second cassette holder, 60... Second cassette Holder drive mechanism, C...cassette.

Claims (1)

[Claims] (1) A device main body having a cassette insertion slot into which one of many types of cassettes of different sizes is inserted, and a device that reciprocates horizontally and vertically along a guide section provided in the device main body. A first cassette holder for loading and unloading each of the cassettes, and a first cassette holder provided between the first cassette holder and the main body of the apparatus,
a first cassette holder drive mechanism that reciprocates the first cassette holder horizontally and vertically along the guide section; and a first cassette holder drive mechanism that holds each of the cassettes and reciprocates the first cassette holder horizontally relative to the first cassette holder. a second cassette holder; and a second cassette holder drive mechanism provided between the second cassette holder and the first cassette holder, for reciprocating the second cassette holder horizontally relative to the first cassette holder. A cassette loading device characterized by comprising: