JPH04172652A - Elevator for disk changer - Google Patents

Abstract

PURPOSE:To change a disk in a short time by providing a gear rotatably supported on a shaft for coupling first, second arms, and a rotary driving force transmitting mechanism for transmitting the rotary driving force of a motor fixed to an elevator to its gear. CONSTITUTION:The rotary driving force of a motor 33 is transmitted to a gear 30 rotatably supported on a shaft 29 for coupling a first arm 21 to a second arm 26 through rotary driving force rotating mechanisms 34, 36 - 40, the gear 30 is rotated, and the arm 21 is driven directly by the rotary force of the gear 30. As the arm 21 is rotated, the arm 26 coupled to the arm 21 via the shaft 29 is rotated, and an elevator 17 is moved vertically while maintaining parallel to a base 18. Thus, the speed of the elevator 17 in vertical movements is accelerated with a simple structure to change a disk in a short time.

Description

[Detailed description of the invention] Industrial applications.

The present invention relates to a magazine moving device for a disc changer that selects and plays a predetermined disc from a plurality of discs.

2. Description of the Related Art Conventionally, a disc changer has been known that pulls out and plays a predetermined disc from a magazine containing a plurality of discs. This type of disk changer is equipped with an elevating mechanism for vertically moving an elevating table on which a magazine is placed, or for vertically moving an elevating table provided with a disk pull-out mechanism, a disk rotation drive mechanism, a disk clamp mechanism, etc. The conventional elevating mechanism for an elevating table involves attaching a plurality of long screws rotatably supported by a base to a plurality of nuts provided on the elevating table, and simultaneously moving the plurality of long screws using the rotational driving force of a motor. It was designed to rotate and move the lifting platform up and down.

Problems to be Solved by the Invention However, the elevating mechanism using a plurality of long screws has a complicated structure and has the problem that the vertical movement speed of the elevating table is slow and it takes time to replace the disk.

The present invention solves the above-mentioned conventional problems, and provides an elevating device for a disc changer that is simple in construction, has a high vertical movement speed of an elevating platform, and can perform disc exchange in a short time.

Means for Solving the Problems In order to achieve the above object, the present invention includes a first arm whose one end is pivotally supported by a base and whose other end slides through a long hole formed in an elevator platform; is pivotally supported on the lifting table, and the other end is rotatably supported on a shaft connecting the first and second arms with a second arm that slides through a long hole formed in the base. The present invention is characterized in that it includes a gear wheel fixed to the lifting table, a motor fixed to the lifting platform, and a rotational driving force transmission mechanism that transmits the rotational driving force of the motor to the gearwheel.

Operation The present invention has the above-described configuration, and the rotational driving force of the motor is transmitted via the rotational driving force rotation mechanism to the gear rotatably supported on the shaft connecting the first arm and the second arm. This gear rotates, and the rotational force of this gear directly drives the first arm. of the first arm as the first arm rotates.

EXAMPLE An example of the present invention will be described below with reference to FIGS. 1 to 5. 1 to 3 show a magazine for a disk changer (hereinafter referred to as magazine). Figure 1~
In FIG. 3, reference numeral 1 denotes a housing with an open front, and a plurality of partition plates 2.3 and 4.5 are formed in parallel on both side walls of the housing 1 and on the back surface facing the opening. ing. 6
is a tray stored between the partition plates 2, 3, 4, and 5 of the casing 1, 7 is a recess formed on the top surface of the tray 6 for placing a disk, and 8 is formed on the bottom surface 9 of the recess 7. The hole 10 is a locking piece formed on the front part of the tray 6, and 11 is a 7-shaped notch formed on the side surface of the tray 6. The elastic pieces provided in the housing 1 are engaged with each other to hold the tray 6 inserted into the housing 1. A holding arm 12 is rotatably supported on the lower surface of the tray 6, and the tip of the holding arm 12 can protrude into the recess 7 through a notch 14 in the outer peripheral wall 13 of the recess 7. This holding arm 12 is biased by a spring (not shown) provided on the back surface of the tray 6 and protrudes into the recess 7 . The outer peripheral surface of the disk placed in the recess 7 of the tray 6 and a part of the upper surface of the disk are urged by the tip of the holding arm 12 and pressed against the outer peripheral wall 13 of the recess 7, preventing the disk from coming out of the recess 7. Prevented. Reference numeral 15 denotes pressing pieces integrally formed with the tray 6 on the left and right sides of the upper surface of the tray 6, and a hemispherical protrusion 16 is formed at the free end of the pressing piece 15.

Top: The own magazine is inserted into the magazine insertion slot of the disc changer and locked inside the disc changer.

The tray 6 in the magazine locked in the disc changer is moved to a lifting platform 17 of the lifting mechanism shown in FIGS. 4 and 5.
The disc placed on the tray 6 is pulled out onto the elevating table 17 by a pull-out lever of a tray pull-out mechanism provided on the tray 6, and the disc placed on the tray 6 is held and played by a turntable and a clamp mechanism provided on the elevating table 17. It is.

Next, FIG. 4 shows the elevating mechanism for elevating and lowering the elevating table 17.
This will be explained with reference to FIG. In Figures 4 and 5, 1
8 is a base fixed within the disc changer;
A long hole 20 is formed in the side plate 19 of this base 18 . An arm 21 has one end supported by a shaft 22 on the side plate 19, and a roller 2 supported at the other end of the arm 21.
3 is inserted into a long hole 25 formed in the side plate 24 of the lifting platform 17. 26 is one end or the side plate 24 of the lifting platform 17.
The arm is rotatably supported on a shaft 27, and a roller 28 supported at the other end of the arm 27 is inserted into a long hole 20 in the side plate 19 of the base 18. Reference numeral 29 denotes a shaft that connects the arms 21 and 26 at approximately the center thereof. The X-shaped link mechanism consisting of the arms 21, 26, shaft 29, long holes 20, 25, etc. is formed on a total of three surfaces: the base 18, the back and right side of the lifting table 17 (FIG. 5). . In addition, in Figures 4 and 5, each part that makes up the X-shaped link mechanism is indicated by the same number, and the distinction between each surface on which the X-shaped link mechanism is provided is indicated by an alphabetic letter appended to the number. are doing. In FIG. 4, 30 is a semicircular gear rotatably supported by the shaft 29A, and a bottle 31 implanted in the gear 30 is inserted into a hole 32 formed in the arm 21A. 33 is a motor fixed to the lifting table 17, 34 is a worm gear fixed to the rotating shaft of the motor 33, 35 is an L-shaped board fixed to the lifting table 17, and this board 35 has a bevel gear. 37 is integrally formed with a helical gear 36 which is pivotally supported. This helical gear 36 meshes with the worm gear 34. 38 is the above axis 2
7 is a bevel gear rotatably supported by the bevel gear 3.
8 meshes with the bevel gear 37. 39 is a bevel gear 38
A gear 40 is integrally formed with the arm 26, and a gear 40a with a large diameter meshes with the gear 39, and a gear 40b with a small diameter meshes with the gear 39. It meshes with a semicircular gear 30. The above motor 33
The rotational driving force is worm gear 34 - helical gear 36 →
It is transmitted to the semicircular gear 30 via the bevel gear 37 → bevel gear 38 → gear 39 → gear 40a → gear 40b, and the semicircular gear 30 rotates around the shaft 29. When the semicircular gear 30 rotates, the bottle 31 embedded in the semicircular gear 30 rotates the arm 21 about the shaft 22 in a clockwise direction or in the direction of the half-hour hand. As arm 21 rotates, arm 26 also rotates counterclockwise or clockwise. As the arm 21.26 rotates, the rollers 23, 28 slide in the elongated holes 25.20, respectively. Therefore, the lifting table 17 rises or falls parallel to the base 18.

Next, the operation of the above-mentioned elevating mechanism will be explained. When the machine is inserted into the insertion slot of the disc changer and locked in a predetermined position, the motor 33 is rotated when the operating button is operated to specify a disc to be played. The rotational driving force of this motor 33 is applied to the worm gear 34. The signal is transmitted to a semicircular gear 30 through a reduction mechanism consisting of a helical gear 36, bevel gears 37, 38, gear 39 and gear 40, and this gear 30 rotates around the shaft 29. When the gear 30 rotates, the bottle 30 embedded in the gear 30 presses the arm 21, so the arm 21 rotates about the shaft 22. As the arm 21 rotates, the arm 26 connected to the arm 21 via a shaft 29 also rotates, and the rollers 23 of the arm 21.26,
26 slides within the slot 24.20. As a result, the lifting table 17 moves upward or downward while maintaining a parallel relationship with the base 18, and the lifting table 17 reaches the same height as the tray 6 on which the specified disk is placed. Stop at. Here, the engaging piece of the tray pull-out mechanism provided on the lifting table 17 engages with the locking piece 10 of the tray 6, and the tray 6
is pulled out onto the lifting platform 17, and the position of this tray 6 is regulated. Next, the disc placed on the tray 6 is held between the turntable of the disc rotation drive mechanism provided on the elevating table 17 and the clamp mechanism, and the turntable is rotated. It reads recorded data and performs a reproduction operation. When the playback operation is completed, the disc is placed on the tray 6, and this tray 6 is housed in the housing 1. When another disk is specified, the elevating mechanism raises or lowers again, and the tray 6 on which the specified disk is placed
It stops when it reaches the same height as , and performs the same operation as described above.

As described above, according to the above embodiment, since the arm is directly driven by the rotation of the gear 30 having a relatively large diameter, the lifting platform 17
It has the advantage that the vertical movement speed is fast and disc replacement can be done in a short time. Furthermore, the above embodiment has the advantage that the lifting mechanism is simple and does not take up much space.

In the above embodiment, the magazine is fixed in the disc changer, and a disc pull-out mechanism, a disc rotation drive mechanism, a disc clamp mechanism, an optical pickup, etc. are provided on the lifting platform 17. , the magazine may be moved up and down. In this case, there is no need to move the disc pull-out mechanism, disc rotation drive mechanism, disc clamp mechanism, optical pickup, etc. up and down.

Effects of the Invention The present invention has the above-mentioned configuration, and has the advantage that the lifting platform can move up and down at a high speed with a simple configuration, and the disk can be replaced in a short time.

[Brief explanation of drawings]

Fig. 1 is a perspective view of a magazine used in a lifting device for a disc changer according to an embodiment of the present invention, Fig. 2 is a front view of the magazine, and Fig. 3 is a top view of the trays stored in the magazine. FIG. 4 is a front view of an elevating device for a disc changer according to an embodiment of the present invention, and FIG. 5 is a side view of the same device. 17... Lifting platform, 18... Base, 19... Side plate,
20... Long hole, 21... Arm, 22... Shaft, 2
3...Roller, 24...Side plate, 25...Long hole, 2
6... Arm, 27... Axis, 28... Roller, 2
9... shaft, 30... gear, 31... pin, 32...
... hole, 33 ... motor, 34 ... worm gear,
35... Board, 36... Helical gear, 37... Bevel gear, 38... Bevel gear, 39... Gear, 40...
Gears, 40a, 40b...gears. Name of agent Patent attorney Akira Koeji and two others Figure 1 1f rate, 6-f〒斤斤 ΔTray Figure 2 2.3.4. Edr1 version 24, L, q 3 Fig. 3 //f7jF4, / ＼ I 10 Fig. 4 Roller press 21sA K Kei long tag N Hana-7
%4 Cod 21A- to Figure 5

Claims (3)

[Claims] (1) A first arm having one end pivotally supported on the base and the other end sliding through a long hole formed in the lifting platform; a second arm that slides through a long hole formed in the base; a gear rotatably supported on a shaft connecting the first and second arms; and a motor fixed to the lifting platform; and a rotational driving force transmission mechanism that transmits the rotational driving force of the motor to the gear, and the first arm is rotated by the rotational driving force of the gear to move the lifting platform up and down. Lifting device for disc changer. (2) The elevating device for a disc changer according to claim 1, further comprising: a rotary driving force transmission mechanism including a gear rotatably supported on a shaft supporting the second arm. (3) An X-shaped link mechanism consisting of a first arm, a second arm, a long hole formed in the base and the elevator, and a shaft connecting the first arm and the second arm. The elevating device for a disc changer according to claim 1, wherein said elevating device is provided on at least two sides of said base and said elevating table.