JPH0142840Y2 - - Google Patents

Description

[Detailed Description of the Invention] Technical Field of the Invention The present invention relates to a horizontal loading type disk loading mechanism.

Prior Art and Problems The horizontal loading type automatic disk loading mechanism used in compact disk players, analog record players, etc. loads the disk onto the turntable before the performance starts, and then removes the disk from the turntable after the performance. It has the function of discharging to the outside. FIG. 1 is a plan view of an example of this type of disc loading mechanism, with (a) showing the state when the disc is being ejected, and (b) showing the state when playing. In the figure, reference numeral 1 denotes the player body, and the loading mechanism is shown through the player body. Reference numeral 2 denotes a sliding portion fixed to the main body 1 side, which is slidably fitted to the support portion 4 of the disk mounting portion 3 and serves as a guide member for guiding the disk mounting portion 3 in the left-right direction in the figure. The mounting part 3 has a circular recess 5.
is formed, and the disk 6 is placed here. Further, a rack 7 is attached to the side of the mounting portion 3, and a pinion 8 on the main body 1 side meshes with this rack. Rotational force is transmitted to this pinion 8 from a motor 9 on the main body 1 side via a worm gear 10.

In this configuration, if the motor 9 is rotated in one direction, the mounting section 3 will be in the ejected state in which it protrudes from the main body 1 as shown in FIG. The section 3 is in a playing state hidden inside the main body 1. In this case, in the ejected state of (a), the mounting portion 3 needs to protrude to the extent that at least the recess 5 is exposed to the outside from the main body 1 so that the disk 6 can be placed and removed. Assuming that the protruding dimension of the mounting portion 3 is L, a dimension l must remain on the main body 1 side including the support portion 4 in order to support the weight of the mounting portion. Therefore, if the clearance with the main body 1 when stored is α, as shown in Figure b,
The depth dimension of main body 1 needs to be D=L+l+α,
Becomes large.

Purpose of the invention The present invention is based on the above-mentioned disk mounting section that is
This is intended to shorten the depth of the main body by using a stepped structure.

Structure of the Invention The present invention includes a first sliding shaft provided in a player main body, a movable support portion slidably supported by the first sliding shaft, and a movable support portion slidably supported by the first sliding shaft. Front and rear stoppers that define the movable range of the movable support with respect to the shaft, a second sliding shaft provided on the movable support, and a movable support that is slidably supported by the second sliding shaft. A disc mounting section, front and rear stoppers that define a movable range of the disc mounting section with respect to the second sliding shaft, a rack provided on the disc mounting section, and a rack provided on the player main body side. The present invention is characterized in that it includes a motor and a pinion gear for providing driving force, and this will be described in detail below with reference to the illustrated embodiments.

Embodiment of the invention Figures 2 to 4 show an embodiment of the invention, in which Figure 2 is a perspective view of the overall appearance of the player, Figure 3 is a perspective view of the loading mechanism, and Figure 4 is an explanatory diagram of the operation. It is. FIG. 2 shows the discharging state, 3 is a disk mounting section (disk drawer A) according to the present invention, and 11 is various operation buttons. As shown in FIG. 3, this disk mounting portion 3 is provided with a rack 7 on its side, but unlike in FIG. 1, it does not have a portion corresponding to the fixed support portion 4. A lower movable support section (disk drawer B) 12 corresponds to this support section. In other words, the disk mounting section 3 is supported by the movable support section 12 and can slide on the support section. Moreover, since the movable support section 12 itself is slidably provided on the main body 1, the entire structure can be expanded and contracted.

This will be explained in detail with reference to FIG. In the figure, 13
is the chassis of the main body 1 and is the only fixed part of this loading mechanism. A first sliding shaft 14 (corresponding to the sliding part 2 in FIG. 1) that slidably supports the middle movable support part 12 is attached to the chassis 13. Reference numerals 15 and 16 denote stoppers that also serve as support portions at the front and rear thereof. Oil-less metal (or ball bushings) 17 and 18 are press-fitted into the movable support portion 12, and the sliding shaft 1 on the chassis 13 side
Combine with 4. The movable support part 12 itself also has a sliding shaft 19.
have. Reference numerals 20 and 21 are stoppers that also serve as support portions at the front and rear thereof. This second sliding shaft 19 is for slidably supporting the upper disk mounting section 3, and the mounting section 3 is connected to this sliding shaft 19 by oil-less metal (or ball bushings) 22, 23. Join.

Explain the operation. In Figure 4c, the loading section 3 is the main body 1.
When the motor 9 shown in FIG. 3 is rotated from this state, the rotational force is transmitted to the rack 7 via the worm 10 and the pinion 8, Start moving (backward) in the direction. At this stage, the mounting part 3 is retracted with respect to the middle movable support part 12, and eventually retreats on the sliding shaft 19, and as shown in FIG. When it collides with the end stopper 21, the movable support portion 12 then retreats along the sliding shaft 14 of the chassis 13. Figure A shows a state in which the movable support portion 12 has moved backward on the sliding shaft 14 and its oil-less metal 18 has abutted against the rear end stopper 16 of the sliding shaft 14. In this playing state, the mounting section 3 is completely housed within the main body 1.

After the performance, when the motor 9 shown in FIG. 3 is reversed from the state shown in FIG. Front end stopper 20 of shaft 19
collide with. This is the state shown in FIG.
It stops at the position where it collides with. This is the discharge state shown in FIG. In this state, the dimensions of the mounting section 3 protruding from the main body 1 to the outside are L ₀ (the total length of the mounting section 3 is L ₀
+β), the remaining dimension of the movable support portion 12 inside the main body 1 is l ₀ , and the clearance in the state of A in the figure is α, then the depth of the main body 1 in the fixed support portion type shown in Fig. 1 is The dimension D is expressed as D=L ₀ +β+α+l ₀ . On the other hand, in the present invention, since the internal dimension l ₀ of the support part overlaps with the mounting part 3 when stored, the depth dimension D' shown in FIG. 2 only needs to be D'=L ₀ +β+α. This is approximately the length of the mounting section 3.

Effects of the Invention As described above, the present invention has the advantage that the depth dimension of the player main body incorporating the horizontal loading type disk loading mechanism can be shortened and the player can be made smaller.

[Brief explanation of the drawing]

Fig. 1 is a plan view of a conventional horizontal loading type disk loading mechanism, Figs. 2 to 4 are views showing an embodiment of the present invention, Fig. 2 is an external perspective view of the player body, and Fig. 3 is a plan view of a conventional horizontal loading type disc loading mechanism. 4 is a perspective view of the disk loading mechanism, and FIG. 4 is an explanatory diagram of the operation. In the figure, 1 is the player body, 3 is the disk mounting part, 6 is the disk, 7 is the rack, 8 is the pinion,
9 is a motor, 12 is a movable support part, 13 is a chassis, 14, 19 are sliding shafts, 15, 16, 20, 2
1 is a stopper.

Claims (1)

[Scope of utility model registration request] a first sliding shaft provided within the player body;
a movable support part slidably supported by the first sliding shaft; front and rear stoppers defining a movable range of the movable support part with respect to the first sliding shaft; A second sliding shaft provided, a disk mounting portion slidably supported by the second sliding shaft, and a movable range of the disk mounting portion with respect to the second sliding shaft are defined. A horizontal loading type, characterized by comprising front and rear stoppers, a rack provided on the disk mounting part, and a motor and pinion gear provided on the player body side for applying driving force to the rack. Disc loading mechanism.