JP3051353B2 - Positioning device for recording medium holder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a positioning device for positioning a holder for holding a disk-shaped or cartridge-shaped recording medium at a predetermined position.

[0002]

2. Description of the Related Art As a reproducing apparatus for reproducing information recorded on a recording medium, there is an apparatus disclosed in, for example, JP-A-61-261860. This known reproducing apparatus includes a magazine having a plurality of storage sections for storing recording media, and reproducing means for reproducing a recording medium selected from the plurality of recording media stored in the magazine. Such a reproducing apparatus is provided with a transfer means for transferring a recording medium selected from a plurality of recording media housed in the magazine to the reproduction means, and the transfer means holds the recording medium drawn from the magazine. In connection with this holding body, a positioning device for positioning the holding body at a position corresponding to the magazine storage portion is provided.

A positioning device applied to this reproducing apparatus has a configuration as shown in FIG. In FIG. 7 schematically showing a positioning device, a known positioning device includes a moving mechanism 4 for vertically moving a holding body 2 that temporarily holds a recording medium from a magazine, and the moving mechanism 4 includes: It has a moving member 10 movably mounted in the directions indicated by arrows 6 and 8. The moving member 10 is provided with a guide positioning groove 12 for positioning the holding body 2 at a predetermined position in the vertical direction, that is, at each of predetermined positions corresponding to each storage portion of the magazine. The holding member 2 is provided with a guided pin 14, and the guided pin 14 is movably received in the guide positioning groove 12. A support mechanism (not shown) is further provided in association with the holder 2, and the support mechanism movably supports the holder 2 in the vertical direction. With this configuration, when the moving member 10 is moved in the direction indicated by the arrow 6 (or 8) with respect to the holder 2, the guided pin 14 moves upward (or downward) in the vertical direction along the guide positioning groove 12. , Whereby the holder 2 is raised (or lowered).

[0004]

The guide positioning groove 12 formed in the conventional moving member 10 has a shape as shown in FIG. That is, the guide positioning groove 12 has a positioning groove 12a provided corresponding to each storage section of the magazine and a moving groove 12b existing between the adjacent positioning grooves 12a.
Extends horizontally substantially in parallel with the moving direction of the moving member 10, and the moving groove portion 12b extends with a large inclination with respect to the moving direction of the moving member. Therefore, the guided pin 14
Is moved in the positioning groove 12a, the guided pin 14 relatively moves in the horizontal direction, and the holder 2 does not move in the vertical direction. On the other hand, when the guided pin 14 moves in the movement groove 12b, the guide pin 14 relatively moves obliquely upward (or downward), and the holder 2 is raised (or lowered).

The positioning of the holder 2 to be moved up and down is performed, for example, by a combination of a detection sensor provided on the holder 2 and a member to be detected provided in a magazine. For example, a slit is provided corresponding to the portion. A moving motor for moving the moving member 10 in directions indicated by arrows 6 and 8 is drivingly connected via a driving connecting mechanism. When a specific recording medium is pulled out, the holding member 2 is moved to a position corresponding to the specific storage section in which the specific recording medium is stored by the movement of the moving member 10, and moves to this position (that is, the guided pin 14 is moved). , Move relatively along the guide positioning groove 12 and move to the specific positioning groove 12a corresponding to the specific storage portion), and the detection sensor detects the slit of the detected member corresponding to the specific storage portion and detects the slit. The moving motor is deenergized based on the detection signal from the sensor, and thus the holder 2 is positioned at a position corresponding to the specific storage section.

However, in the positioning device having such a configuration, the positioning groove 1 of the guide positioning groove 12 is provided.
The following problems occur in connection with the fact that 2a extends horizontally. Generally, the detection position of the detection sensor that detects the slit of the detected member varies due to a processing error, an assembly error, and a characteristic error of the detection sensor of the positioning device. When the moving motor is deenergized, the movement of the moving member 10 does not stop immediately after the deenergization, but stops after moving somewhat due to inertia. Therefore, for example, when the guided pin 14 moves obliquely upward (or downward) along the guide positioning groove and moves from the moving groove 12b to the positioning groove 12a, the detection sensor detects the slit of the detected member. In this case, the guided pin 14 stops at the positioning groove 12a due to inertia, and the holder 2 stops almost without moving upward (or downward) from the position where the detection sensor detects the slit. On the other hand, if the detection sensor detects the slit of the detected member when the guided pin 14 moves from the positioning groove 12a to the moving groove 12b, the guided pin 14 moves to the moving groove 12b due to inertia. Stops (since the positioning groove 12a extends horizontally, when the guided pin 14 relatively moves in the positioning groove 12a, Rather than the detection sensor detects the slit of the detection member, the detection sensor to detect the slit, when the moving groove 12b moves the positioning groove 12a or positioned groove 12a from moving groove 12b,
It is time to move to). When the guided pin 14 moves to the moving groove portion 12b in this manner, the holder 2 moves somewhat upward (or downward) from the position where the detection sensor detects the slit and stops, and when this moving amount increases, Holder 2
Cannot be accurately positioned at a position corresponding to the magazine storage section.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a recording medium holder positioning apparatus which can accurately position a holder at a predetermined position with a relatively simple structure.

[0008]

According to the present invention, there is provided a holder for holding a recording medium, and a moving mechanism for moving the holder in a predetermined direction, wherein the moving mechanism has a guide positioning groove formed therein. A moving member, a driving source for moving the moving member, and a guided member provided in the holding body and movably received in the guide positioning groove, and the moving member is moved relative to the holding body. By moving, the guided member is moved along the guide positioning groove,
Accordingly, in the recording medium holder positioning device in which the holder is positioned at a predetermined position, the guide positioning groove of the moving member is adjacent to a positioning groove provided corresponding to a position where the holder is positioned. A moving groove existing between the positioning grooves, wherein the moving groove is greatly inclined in a predetermined inclination direction with respect to a moving direction of the moving member, and the guided member moves the moving groove. At this time, the holding body largely moves in the predetermined direction with the movement of the moving member, and the positioning groove has a small inclination in substantially the same inclination direction as the predetermined inclination direction of the movement groove. A slow moving portion having a small amount of movement of the body in the predetermined direction is provided, and when the guided member moves along the slow moving portion, the moving portion moves along with the moving member. There is a positioning device for a recording medium holding member, characterized in that slowly moves in the predetermined direction. According to the present invention, the guide positioning groove of the moving member has a positioning groove corresponding to a predetermined position where the holder is positioned, and the positioning groove has a gentle moving portion. This gentle moving portion is slightly inclined in the same inclination direction as the predetermined inclination direction of the moving groove portion, so that the amount of movement of the holder in the predetermined direction is small. Therefore, if the drive source is de-energized as required when the guided member is relatively moving the slow moving portion, even if the guided member moves somewhat after the de-energization of the drive source, the The moving range is substantially within the range of the gentle moving portion, and the amount of movement of the holder in the predetermined direction after the de-energization hardly occurs, and the holder is accurately positioned at the predetermined position. Also,
By providing the gentle moving portion, even if the de-energized position of the driving source slightly changes due to an assembly error or the like, the positioning position of the holding member does not largely change in a predetermined direction. Can be positioned at a predetermined position.
The guide positioning groove formed on the moving member has a positioning groove and a moving groove. The moving groove portion is largely inclined at an inclination angle of, for example, about 45 degrees with respect to the moving direction of the moving member, as described later with reference to FIGS. Therefore, the guided member provided on the holding body moves in the moving groove, so that the guided member is
The amount of movement, which is the distance that the guided member moves in the predetermined direction relative to the distance the movable member moves in a predetermined direction, for example, the vertical direction, that is, the distance that the moving member moves, is large. The positioning groove portion is provided with a slow moving portion, which is substantially the same as the predetermined tilt direction of the moving groove portion, as described later with reference to FIGS. 3 and 4, for example. It is inclined, that is, gently inclined, for example, at an inclination angle of about 5 degrees. Therefore, the moving amount of the guided member, that is, the holding body in the predetermined direction with respect to the distance the moving member has moved in the moving direction is small. Therefore, by deenergizing the drive source in a state where the guided member is located in the gentle moving portion, there is almost no movement amount of the guided member and the holder in the predetermined direction after the drive source is deenergized, The holder can be accurately positioned at a desired position in the predetermined direction. In addition, the provision of the gently moving portion can lower the assembly accuracy. This is shown in FIGS. 5 and 6
The same applies to each of the embodiments shown in FIG.

According to the present invention, the positioning groove of the guide positioning groove extends gently with respect to the moving direction of the moving member, and substantially the entire positioning groove acts as the slow moving portion. It is characterized by the following. According to the present invention, since the positioning groove extends gently with respect to the moving direction of the moving member, even if the position of the moving member slightly moves in the moving direction, the amount of movement of the holder in the predetermined direction is small. Very little, and therefore, the holder can be positioned exactly in place. In addition, since the positioning groove is substantially entirely a slow moving portion, the slow moving portion can be provided over a relatively wide range.

[0010]

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a recording medium holder positioning apparatus according to the present invention will be described with reference to the accompanying drawings. FIG. 1 is a plan view schematically showing a recording medium reproducing device provided with an embodiment of a positioning device according to the present invention, and FIG. 2 is a cross-sectional view showing the recording reproducing device of FIG. FIG.

In FIG. 1 and FIG. 2, the illustrated recording medium reproducing apparatus includes a box-shaped housing 22 attached to a vehicle body, for example. The housing 22 has a rectangular bottom wall 24.
And side walls 26, 28, rear wall 30 and front wall 32 extending upward from both sides, rear and front of bottom wall 24, respectively, and the upper surface defined by these walls 24, 26, 28, 30 is It is covered by a wall 34 (omitted in FIG. 1).

At the rear of the internal space of the housing 22, a magazine 36 as a recording medium storage means is provided, and below the magazine 36, a reproducing means 38 is provided. The magazine 36 has a magazine body 40 whose front side (left side in FIG. 2) is open, and a plurality of magazines (in the present embodiment) are arranged inside the magazine body 40 in a predetermined direction, that is, in the vertical direction in FIG. (Three in the embodiment) partition plates 42 are provided, and a plurality of storage portions 44 are provided at intervals in the predetermined direction by the partition plates 42. Each of these storage sections 44 stores one MD 46 (mini-disc) as a recording medium. In the present embodiment, the storage means 36 is provided with four storage portions 44, so that four MDs 46 are stored in the storage means 36.

The reproducing means 38 includes a reproducing unit main body 48.
And a disk container 50 disposed above the reproducing unit main body 48. Playback unit body 48
Is provided with a drive motor (not shown) for rotationally driving the MD 46 and an optical pickup (not shown) for reading information stored in the MD 46, and a turntable 52 drivingly connected to the drive motor. Is the unit body 48
Projecting upwards. The disk container 50 is MD4
6 is provided. The front side (the left side in FIG. 2) of the housing housing 54 is open, and the MD 46 is housed and discharged through the opened opening. The housing housing 54 is movably supported between an insertion / ejection position indicated by a solid line in FIG. 2 and a reproduction position indicated by a two-dot chain line in FIG. When in the insertion / discharge position, the MD 46 is inserted into the storage housing 54 and discharged from the storage housing 54 as described later. In addition, when in the reproduction position, the MD 46 housed in the housing 54 is driven to rotate by the turntable 52 of the unit body 48, and is driven to rotate by the drive motor (not shown) being energized.

As shown in FIG. 2, the MD 46 has a rectangular casing 56 in which a disk 58 is rotatably accommodated. Disk 5
Numeral 8 is formed from a medium that can be optically and magnetically recorded and / or reproduced, and a clamp plate 60 is provided at the center of the clamp plate 60 to be attracted to the turntable 52 of the reproduction unit main body 48. This clamp plate 60
A drive hole 62 is provided in the casing 56 in correspondence with the above. The turntable 52 is drivingly connected to the clamp plate 60 through the drive hole 62, and when the drive motor is energized, the disk 58 of the MD 46 moves in a predetermined direction. Drive connected.

A transfer means 64 for transferring the MD 46 stored in the magazine 36 to the reproduction means 38 is provided at the front of the internal space of the housing 22. Transfer means 6 shown
4 includes a recording medium holder 66 for holding the MD 46. The holding body 66 has a rectangular holding housing 68.
The front side (the left side in FIG. 2) and the rear side (the right side in FIG. 2) of the holding housing 68 are open. A support plate 70 is provided on the left side of the holding body 66 in FIG.
Extend in the front-rear direction (vertical direction in FIG. 1 and left-right direction in FIG. 2), and the rear end extends to near the rear end of the magazine 36. The first part of the support plate 70
A feed roller 72 is provided, and a second feed roller 74 is provided in front of the feed roller 72. The first feed roller 72 is provided corresponding to the magazine 36, and is movably provided between a non-operation position indicated by a solid line in FIG. 1 and an operation position indicated by a two-dot chain line in FIG. The first feed roller 72 is located outside the magazine body 40 when in the non-operation position,
When positioned at the operation position, it acts on the MD 46 stored in the storage section 44 through an opening 76 (formed corresponding to each storage section 44) formed in the magazine body 40. The second feeding roller 74 is provided corresponding to the holding body 66, and is movably provided between a non-operating position indicated by a solid line in FIG. 1 and an operating position indicated by a two-dot chain line in FIG. I have. The second feed roller 74 is located outside the holding housing 68 when in the non-operating position, but is held in the holding housing 68 through an opening (not shown) formed in the holding housing 68 when located in the operating position. On the MD 46 that has been set.

The first feeding roller 72 is drivingly connected to a driving motor 78, and the second feeding roller 74 is drivingly connected to a driving motor 80. The first feed roller 72 is driven to rotate in the direction indicated by the arrow 82 when the MD 46 is stored in the magazine 36 by the action of the drive motor 78, while the M
When D46 is pulled out of the magazine 36, it is driven to rotate in the direction opposite to the direction indicated by the arrow 82. The second feed roller 74 is rotated by a drive motor 80 in a direction indicated by an arrow 84 when feeding the MD 46 toward the magazine 36, and feeds the MD 46 toward the front side of the housing 22. At times, it is rotationally driven in a direction opposite to the direction indicated by arrow 84.

A moving mechanism 86 (FIG. 1) for moving the holder 66 in a predetermined direction, that is, in the vertical direction, is positioned at a predetermined position by a positioning device 100. The positioning device 100 includes the holder 66. The moving mechanism 86 moves the holding body 66 (along with the support plate 70 attached thereto) between the uppermost position shown by the two-dot chain line 66A in FIG. 2 and the lowermost position shown by the two-dot chain line 66B in FIG. Move. The moving mechanism 86 and its related configuration will be described later.

An elongated rectangular insertion / ejection opening 88 is formed at the upper end of the front wall 32 of the housing 22. MD4
6 is inserted into the housing 22 through the insertion / discharge opening 88 and is discharged from the housing 22 to the outside.

The outline of the operation of the above-described reproducing apparatus is as follows. When the MD 46 is stored in the magazine 36, the holder 46 is positioned at the uppermost position indicated by a two-dot chain line 66A. MD46 is the insertion / ejection port 8
The MD 46 inserted through the second feed roller 8 and thus inserted is temporarily held by the holding body 66 by the action of the second feed roller 74. Thereafter, the holding body 66 is lowered to a predetermined position by the action of the moving mechanism 86 as required (specifically, the holding body 66 is moved to a position facing the storage section 44 in which the magazine 36 is to be stored), Thereafter, the first and second feed rollers 72 and 74 are driven in the directions indicated by arrows 82 and 84, and the MD 46 held by the holder 66 is moved to the first and second directions.
The MD 46 fed to the magazine 36 by the action of the feed rollers 72 and 74 and thus inserted through the insertion / discharge port 88 is stored in the predetermined storage section 44. Each storage section 4
The bottom of 4 is provided with a leaf spring-like projection 90 by cutting and raising a part thereof, and thus the MD 46
Is stored in the storage portion 44, the protrusion 90 acts on the clamp plate 60 through the drive hole 62 of the casing 56 and presses upward, whereby the MD 46 is moved to the storage portion 44.
Is stored as required.

The MD 46 stored in the magazine 36
Is discharged, the opposite operation is performed. That is, the holder 66 first detects the MD to be discharged.
After the MD 46 of the storage section 44 is pulled out and temporarily held by the holding body 66, and then the holding body 66 is moved to the highest position, MD4 held by holder 66
6 is discharged outside through the insertion / discharge port 88.

When reproducing the MD 46 stored in the magazine 36, first, the holding body 66 is moved by the action of the moving mechanism 86 to the storage section 44 in which the selected MD 46 is stored.
Is located at a position corresponding to Next, the first and second feed rollers 72 and 74 are rotated in the directions opposite to the directions indicated by arrows 82 and 84, and the first and second feed rollers 7 and 74 are rotated.
MD4 stored in storage section 44 by the action of 2, 74
6 is withdrawn from the storage section 44 and fed to the holder 66,
It is temporarily held by this holding body 66. Next, MD46
Is lowered to the lowermost position, and thereafter, the first and second feed rollers 72, 7
4 is rotated in the directions indicated by the arrows 82 and 84, and the MD 46 held by the holding body 66 by the action of the first and second feeding rollers 72 and 74 is housed in the housing 50. In addition,
An opening 92 that allows the first feed roller 82 to enter is formed in the storage housing 54 of the storage body 50, similarly to the storage section 44 of the magazine 36. Thereafter, the container 50 accommodating the MD 46 moves from the insertion / ejection position to the reproduction position, and the disk 58 of the MD 46 is drivingly connected to the turntable 52 of the reproduction unit main body 48.

When the reproduced MD 46 is stored in the magazine 36, the operation opposite to that described above is performed. That is, first, the container 50 is inserted from the playback position.
MD 46 moved up to the discharge position and accommodated in accommodation body 50
Is temporarily held by the holding body 66 located at the lowest position. After that, the holder 66 holding the MD 46 is replaced with the MD
The MD 46 is raised to a position corresponding to the storage section 44 in which the MD 46 has been stored, and the MD 46 held by the holder 66 is
Is stored in a predetermined storage portion 44 of the storage device.

Next, referring to FIG. 3 together with FIGS. 1 and 2, a description will be given of a moving mechanism 86 for moving the holding body 66 up and down and a structure related thereto. As shown in FIG. 1, the moving mechanism 86 that constitutes a part of the positioning device 100 includes a pair of moving members 102 and 104 that are arranged at intervals in the horizontal direction (the left and right direction in FIG. 1). (The moving members are omitted in FIG. 2 and only one moving member 102 is shown in FIG. 3). The moving member 102 is disposed inside the side wall 26, and the other moving member 104 is disposed inside the side wall 28. Both ends of the pair of moving members 102 and 104 are connected to the connecting member 1 respectively.
08,110. Although not shown, the pair of moving members 102 and 104 are
1 is supported so as to be movable in the front-rear direction (vertical direction in FIG. 1, and left-right direction in FIGS. 2 and 3). A drive motor 106 is drive-connected to the moving member 102 via a drive connection mechanism (not shown) including a rack and the like.
When the drive motor 106 is rotated forward (or reversely), the moving members 102 and 104 are moved by arrows 112 via the drive connection mechanism.
(Or 114), and can move between a first position indicated by a solid line in FIG. 3 and a second position indicated by a two-dot chain line in FIG.

As shown in FIG. 3, one of the moving members 102
Has a pair of guide positioning grooves 1 spaced apart in the front-rear direction.
16 and 118 are formed, and the guide positioning grooves 116 and 118 have substantially the same shape. Although not shown, one guide positioning groove having substantially the same shape as the guide positioning grooves 116 and 118 is also formed in the other moving member 104. On the other hand, on the wall surface of the holding body 66 (specifically, the wall surface of the holding housing 68 facing the moving member 102), a pair of guided pins 120, 122 The guide pins 120 and 122 are movably received along the corresponding guide positioning grooves 116 and 118. Although not shown on the other wall surface of the holding body 66 (specifically, a wall surface facing the moving member 104 of the holding housing 68), similar to the above,
A guided pin (constituting a guided member) is provided, and the guided pin is movably received along a guide positioning groove (not shown) of the moving member 104. These guided pins 120 and 122 constitute a part of the moving mechanism 86.

With reference to FIGS. 3 and 4, the shape of one of the guide positioning grooves 116 (118) will be described as follows. Guide positioning groove 116 shown
Extend obliquely upward in a stepwise manner, and are provided with positioning grooves 116a (11) provided corresponding to the respective storage portions 44 of the magazine 36.
8a), a positioning groove 116b (116b) provided corresponding to the container 50 of the reproducing means 38 (specifically, the container 50 at the insertion / ejection position), and between the adjacent positioning grooves 116a and 116b. Moving groove 116 existing in
c (118c). The positioning grooves 116a,
116b is gently inclined with respect to the moving direction of the moving member 102, that is, the front-back direction, and extends linearly at an inclination angle of, for example, about 5 degrees. Therefore, when the guided pin 120 (122) moves the positioning grooves 116a and 116b toward the upper end (or lower end) of the guide positioning groove 116 relatively to the moving member 102, the movement of the moving member 102 is prevented. At the same time, the holder 66 moves upward (or downward) slowly. The amount of movement of the holding body 66 in the vertical direction is determined by the positioning grooves 116a and 116b.
When the inclination angle is reduced, the ratio of the vertical movement of the holder 66 due to the movement of the moving member 102 can be reduced. In addition, the moving groove 116c
Is largely inclined with respect to the moving direction of the moving member 102, and extends linearly at an inclination angle of, for example, about 45 degrees.

Therefore, when the guided pin 120 moves the moving groove 116 c toward the upper end (or lower end) of the guide positioning groove 116 relatively to the moving member 102, the moving member 102 moves. Holder 6
6 moves largely (or downward).

In the recording medium reproducing apparatus, as shown in FIGS. 1 and 2, the holding body 66 is positioned at a predetermined position, in this embodiment, at a position facing each of the storage portions 44 of the magazine 36, and at the insertion / insertion position.
A detection mechanism 124 is provided for positioning at a position facing the container 50 at the discharge position. The illustrated detection mechanism 124 includes a detection sensor 126 provided at a rear end corner of the holding body 66, a first detection member 128 provided on a side wall of the magazine 36, and a second detection member 126 provided on a side wall of the housing 50.
And the detected member 130. Detection sensor 1
Reference numeral 26 denotes a combination of a light emitting element disposed on one side of the detected members 128 and 130 and a light receiving element disposed on the other side, and light from the light emitting element is projected on the light receiving element. . On the other hand, the first detected member 128 has a plurality of (four in this embodiment) slits 13 spaced apart in the vertical direction.
2 are formed, and these slits 132 are provided corresponding to the respective storage portions 44 of the magazine 36. Further, one slit 134 is formed in the second detected member 130. With this configuration, when the detection sensor 126 detects the uppermost slit 132 of the detected member 128, the holding body 66 is positioned opposite the uppermost storage section 44 of the magazine 36, that is, a two-dot chain line in FIG. It is located at the highest position indicated by 66A. When the detection sensor 126 detects the second (or third, fourth) slit 132 from the top of the detected member 128, the holder 66 moves to the second (or third, fourth) position from the top of the magazine 36. (The position shown by the solid line in FIG. 2 is the position facing the fourth storage portion 44). Further, the detection sensor 126 detects that the slit 1
When 34 is detected, the holder 66 is located at a position facing the container 50, that is, at a position indicated by a two-dot chain line 66B in FIG. Therefore, the detection sensor 126 and the detected member 1
By using 28 and 132, it is possible to detect that the holder 66 has moved to a predetermined position. Note that the position of the slit 132 of the first detected member 128 corresponds to the position of the positioning grooves 116a and 118a of the guide positioning grooves 116 and 118 of the moving member 102, and the detection sensor 12
6 detects the slit 132, the guided pins 120, 122 move into the guide positioning grooves 116, 118.
Are located in the positioning grooves 116a and 118a. Also,
The position of the slit 134 of the second detected member 130 is determined by the positioning grooves 116b, 1 of the guide positioning grooves 116, 118.
18b, when the detection sensor 126 detects the slit 134, the guided pins 120, 12
2 is located in the positioning grooves 116b and 118b.

A support mechanism (not shown) for supporting the holder 66 so as to be movable in the vertical direction is further provided. The support mechanism is fixed to, for example, the bottom wall 24 of the housing 22,
A pair of guide plates having guide grooves extending in the vertical direction (two guide grooves are provided on one guide plate corresponding to the guided pins 120 and 122 on one side of the holding body 66, and the other guide plate is provided on the other guide plate). Is provided with one guide groove corresponding to the guided pin on the other side of the holding body 66), and the guided pins 120 and 122 of the holding body 66 are movably received in the guide grooves of the guide plate. Can be By supporting the holding body 66 in this manner, the moving member 102,
When the 104 moves in the directions indicated by the arrows 112 and 114 (FIG. 1), the holder 66 is surely moved in the up and down direction, and does not move in the directions indicated by the arrows 112 and 144.

The positioning of the holding body 66 at a predetermined position, for example, at a position facing the uppermost storage section 44, is performed as follows. Referring to FIGS. 1 and 3, drive motor 106 is rotated forward and moving members 102 and 104
When moved in the direction indicated by 12, the moving members 102, 10
4, the guided pins 120, 12 of the holder 66 are moved.
2 is moved upward along the guide positioning grooves 116 and 118, whereby the holding body 66 is also raised. And
When the holder 66 moves up and the detection sensor 126 detects the uppermost slit 132 of the first detected member 128, the drive motor 106 is deenergized by a detection signal from the detection sensor 126, and the guided pins 120 and 122 are guided. Is the uppermost positioning groove 116 of the guide positioning grooves 116 and 118.
a, 118a, and thus the holder 66 is positioned at the uppermost position. When the drive motor 106 is de-energized, the guided pins 120, 12
2 is moved somewhat upward along the positioning grooves 116a, 118a. However, in this embodiment, the positioning grooves 116a, 118a
2 and 104, the guided pins 120 and 122 are positioned in the positioning grooves 116.
The holder 66 hardly moves in the vertical direction even if the holder 66 moves slightly along the lines a and 118a. Therefore, the holder 66 is accurately positioned at a position facing the uppermost storage section 44. In this embodiment, the guide positioning groove 12
0, 122 positioning grooves 116a, 118a (116
b, 118b) are substantially entirely
4, the gently inclined portion, in other words, the gently moving portion of the holder 66 becomes longer, and the processing error and the assembly error of the components, the detection sensor 1
26, the detection error of the detection sensor 126 (slit 1)
32, 134), the guide pin 12 can be removed when the drive motor 106 is deenergized.
0, 122 are positioning grooves 116a, 118a (116
b, 118b), and the position of the holder 66 is prevented from greatly changing in the vertical direction. The positioning grooves 116a, 116 of the guide positioning grooves 116, 118
b, 118a, 118b are substantially the same in shape, so that the guided pins 120, 122 are
When positioned at 6a, 116b, 118a, 118b, the same operation and effect as described above are achieved.

In the above embodiment, the guide positioning groove 11
6, 118 positioning grooves 116a, 116b, 118
Although a and 118b are gently and linearly inclined and extend, alternatively, they may be configured as shown in FIG. 5, for example. In FIG. 5, the moving member 1 in a modified form is shown.
The guide positioning groove 202 in 02 (104) extends diagonally upward in a stepwise manner, and is provided with a positioning groove 202a provided corresponding to each storage section 44 of the magazine 36, and the reproduction means 3
8 positioning groove 20 provided corresponding to container 50
2b and a moving groove 202c existing between adjacent positioning grooves 202a and 202b. The positioning grooves 202a and 202b protrude upward in an arc shape having a large radius of curvature. Therefore, as easily understood from FIG. 5, the guided pin 120 provided on the holding body 66 is provided.
Is moved toward the upper end (or lower end) of the guide positioning groove 202 relative to the moving member 102 (104), the holding body 66 is moved with the movement of the moving member 102. After slowly moving upward, it slowly moves downward. The amount of vertical movement of the holder 66 depends on the radius of curvature of the positioning grooves 202a and 202b. When the radius of curvature is increased, the rate of vertical movement of the holder 66 due to the movement of the moving member 102 (104) decreases. Become. In addition, the moving groove 202c is
The guide pin 120 extends obliquely with respect to the moving direction of the moving member 102 (104).
2c is the upper end side (or lower end side) of the guide positioning groove 202
When moving toward the moving member 102 (104)
The holding body 66 moves largely upward (or downward) with the movement of.

As described above, the same operation and effect can be achieved by using the moving member 102 (104) having the guide positioning groove 202 shown in FIG. In addition, substantially all of the positioning grooves 202a, 202a of the guide positioning groove 202 act as a gentle moving portion in which the holding body 66 moves slowly up and down with respect to the moving direction of the moving member 102 (104). Even if the detection position of the detection sensor 126 (FIGS. 1 and 2) fluctuates somewhat due to a component processing error, an assembly error, or the like, the guided pin 120 is located in the positioning groove 202a (202b), and The position is prevented from greatly changing in the vertical direction.

In the above embodiment, the guide positioning groove 11
6, 118 positioning grooves 116a, 116b, 118
Although substantially the entirety of the a and 118b are slow moving parts,
Instead of this, for example, it can be configured as shown in FIG. In FIG. 6, a moving member 102 of a modified form is shown.
The guide positioning groove 212 in (104) extends diagonally upward in a stepwise manner, and is provided corresponding to the positioning groove 212a provided corresponding to each storage section 44 of the magazine 36 and the storage body 50 of the reproducing means 38. Positioning groove 212b
And a moving groove 212c existing between adjacent positioning grooves 212a and 212b. Positioning groove 2
12a and 212b have a horizontal moving part 214 and a gentle slope part 216 (constituting a gentle moving part) between the horizontal moving part 214 and the moving groove part 212c.
Numeral 4 extends in the horizontal direction substantially parallel to the moving direction of the moving member 102 (104), and the gentle slope portion 216 is gently inclined with respect to the moving direction of the moving member 102 (104) to form a straight line. Extends to. Therefore, the guided pin 2
08 moves relative to the moving member 102 (104) relative to the horizontal moving portion 214 of the positioning grooves 212a and 212b, the holder 66 does not substantially move in the vertical direction, but the guided pin 208 Moving member 102 (1
04) relative to the positioning grooves 212a, 212
When moving the gentle inclined portion 216 of FIG.
With the movement of 2 (104), the holding body 66 slowly moves upward (or downward).

Using the moving member 102 (104) having the guide positioning groove 212 having such a shape, the same operation and effect as described above can be achieved. In this embodiment, the positioning grooves 212a and 212b of the guide positioning groove 212 are provided.
The gentle slope 216 in the positioning groove portions 212a, 2
Since it is provided in a part of 12b, its range is smaller than that in the above-described embodiment.

Although the embodiment of the apparatus for positioning the recording medium holder according to the present invention has been described above, the present invention is not limited to such an embodiment, and various modifications can be made without departing from the scope of the present invention. , Modifications are possible.

For example, in the illustrated embodiment, the description has been made by applying the present invention to a reproducing apparatus in which a magazine is provided with four storage sections. However, the present invention is not limited to this, and two, three, or five or more storage sections are provided. The present invention can be similarly applied to a reproducing apparatus including a magazine having a section. In addition, the present invention is not limited to the reproducing apparatus, and can be similarly applied to a recording apparatus that records information on a recording medium or a recording / reproducing apparatus that can perform both recording and reproduction.

Further, for example, in the illustrated embodiment, the description has been made using the MD as the recording medium. However, the present invention is not limited to this. The present invention can be similarly applied to a case where a cartridge-shaped recording medium such as a cassette tape or a video tape is used as a recording medium.

Further, in the illustrated embodiment, the present invention is applied to a reproducing apparatus in which reproducing means is provided below a magazine. However, the present invention is also applied to a reproducing apparatus in which reproducing means is provided below a holder. can do. In this case, the recording medium held by the holding member is directly driven and connected to the drive motor of the reproducing means, and the housing can be omitted (corresponding to this, the guide positioning grooves 116 and 118).
The positioning grooves 116b and 118b can be omitted).

[0039]

According to the apparatus for positioning a recording medium holder of the first aspect of the present invention, the guide positioning groove of the moving member has a positioning groove corresponding to a predetermined position where the holder is positioned. Has a slowly moving part. This gentle moving portion is slightly inclined in the same inclination direction as the predetermined inclination direction of the moving groove portion, so that the amount of movement of the holder in the predetermined direction is small. Therefore, if the drive source is de-energized as required when the guided member is relatively moving the slow moving portion, even if the guided member moves somewhat after the de-energization of the drive source, the The moving range is substantially within the range of the gentle moving portion, and the amount of movement of the holder in the predetermined direction after the de-energization hardly occurs, and the holder is accurately positioned at the predetermined position. Also,
By providing the gentle moving portion, even if the de-energized position of the driving source slightly changes due to an assembly error or the like, the positioning position of the holding member does not largely change in a predetermined direction. Can be positioned at a predetermined position.
In particular, according to the present invention, the guide positioning groove formed in the moving member includes a positioning groove and a moving groove, and the moving groove is greatly inclined in a predetermined inclination direction with respect to the moving direction of the moving member. Therefore, when the guided member moves by a predetermined distance in the moving direction of the moving member by moving in the moving groove, the guided member and the holder can be largely moved in the predetermined direction. The positioning groove portion has a gentle moving portion, which is inclined in a direction substantially the same as the predetermined inclination direction of the moving groove portion and smaller than the moving groove portion, so that the moving member has a predetermined distance. When the guided member moves in the movement groove, the guided member and the holder move in the predetermined direction in a smaller amount. Therefore, as described above, by deenergizing the drive source when the guided member is located in the gentle moving portion, the amount of movement of the guided member and the holding body in the predetermined direction after the deenergization can be almost eliminated. In addition, the holder can be accurately positioned at a desired position in the predetermined direction, and the assembling accuracy can be low as described above.

According to the recording medium holding device positioning apparatus of the second aspect of the present invention, since the positioning groove portion extends gently inclining with respect to the moving direction of the moving member, the position of the moving member is shifted in the moving direction. The holder is hardly moved in the predetermined direction even if the holder is moved to some extent, so that the holder can be accurately positioned at the predetermined position. In addition, since the positioning groove is substantially entirely a slow moving portion, the slow moving portion can be provided over a relatively wide range.

[0041]

[Brief description of the drawings]

FIG. 1 is a plan view schematically showing an example of a reproducing apparatus provided with an embodiment of a recording medium holder positioning apparatus according to the present invention, with a part thereof being omitted.

FIG. 2 is a cross-sectional view schematically showing the reproducing apparatus of FIG.

FIG. 3 is a side view showing a main part of a moving mechanism in the holder positioning device of the reproducing apparatus of FIG. 1;

4 is a partially enlarged view showing a part of a moving member in the moving mechanism of FIG. 3;

FIG. 5 is a partially enlarged view showing a part of a moving member having a guide positioning groove according to a modified embodiment.

FIG. 6 is a partially enlarged view showing a part of a moving member having a guide positioning groove according to another modification.

FIG. 7 is a side view showing a main part of a conventional moving mechanism.

8 is a partially enlarged view showing a part of a moving member in the moving mechanism of FIG. 7;

[Explanation of symbols]

2,66 Holder 4,86 Moving mechanism 10,102,104 Moving member 12,116,118,202,212 Guide positioning groove 12a, 116a, 116b, 118a, 118b, 2
02a, 202b, 212a, 212b Positioning groove 12b, 116c, 118c, 202c, 212c Moving groove 14, 120, 122, 204, 218 Guided pin 22 Housing 36 Magazine 38 Reproducing means 44 Storage 46 MD 50 Container 100 Positioning Device 124 Detection mechanism 126 Detection sensor 128, 130 Detected member

Claims (2)

(57) [Claims] A moving member for moving the holding member in a predetermined direction, wherein the moving mechanism includes a moving member having a guide positioning groove, and a moving member. A driving source for moving, and a guided member provided in the holding body and movably received in the guide positioning groove, wherein the guided member is moved by moving the moving member with respect to the holding body. Is moved along the guide positioning groove, whereby the holding body is positioned at a predetermined position. The guide positioning groove of the moving member corresponds to a position where the holding body is positioned. And a moving groove existing between the adjacent positioning grooves, wherein the moving groove is opposed to a moving direction of the moving member. When the guided member moves in the moving groove, the holding member largely moves in the predetermined direction with the movement of the moving member, and the guide member moves in the predetermined direction. Is provided with a gently moving portion that is slightly inclined in the same inclination direction as the predetermined inclination direction of the moving groove portion and has a small moving amount of the holder in the predetermined direction, and the guided member moves the gently moving portion. A moving member that moves gently in the predetermined direction in accordance with the movement of the moving member. 2. The positioning groove of the guide positioning groove extends gently with respect to the moving direction of the moving member, and substantially the entire positioning groove acts as the slow moving portion. The positioning device for a recording medium holder according to claim 1.