JPH02304768A - Disk inserting and ejecting device - Google Patents

Abstract

PURPOSE:To reduce the number of assembly processes by inserting a moving board in a position outside a transmission stroke for the assembly of the moving board which transmits the inserting and ejecting force of loading mechanism, executing a retaining and stroke regulation with another parts, and placing the moving board back into the transmission stroke and fixing it. CONSTITUTION:A through hole 8c of a rack 10 in a moving board 11, which is provided in a frame 8, is extended in a front direction 8d rather than a stop position in the front direction of the moving board 11. Then, a parallel hole 11 of the moving board 11 is extended back and forth and shapes 11c and 11d are provided to be respectively opened in a straight downward direction and a rear direction. The open-shaped parts 11c and 11d of the moving board 11 are assembled through a short stud 8b of the frame 8. Afterwards, the moving board 11 is brought back to the stop position in the front direction and the rack 10 is fixed by a screw 17. Then, the moving board 11 and frame 8 are prevented from being vertically deviated. Thus, the number of the assembling processes is decreased.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an apparatus that takes into account serviceability such as disassembly checking and reassembly during two inspections of assembly of a loading mechanism in an optical or magneto-optical disk drive device.

[Conventional technology]

The conventional device includes a housing (18) into which a disk (50) or a cassette (20) is inserted, as described in Japanese Patent Application Laid-Open No. 58-85966.
A cassette or disc insert for a recording and/or playback device, the housing comprising studs that engage in slots (14) having an inverted shape provided in parallel uprights fixed to the frame. and in the device for injection, a moving plate (22, 22') with an inclined slot (24) accommodating each stud.
, the plate being subjected to a translational movement such that the housing is displaced horizontally and then vertically in order to position the cassette (20) or the disc on the instantaneous and/or reproducing means. It was a distinctive device.

[Problem to be solved by the invention]

The above conventional technology does not mention the ease of assembly and serviceability of the device, resulting in an increase in assembly man-hours and disassembly during service.

There were problems with deterioration of device performance due to screw shavings during inspection and reassembly, and difficulty in inspection work.

An object of the present invention is to provide a loading mechanism that reduces assembly man-hours and facilitates serviceability and maintenance.

[Means to solve the problem]

In order to achieve the above purpose, inserting a loading mechanism,
The assembly of the member (moving plate) that transmits the ejection force is inserted at a position outside the transmission stroke, and other parts are used to prevent removal and restrict the stroke, and then returned and fixed within the transmission stroke.The pocket for storing the cassette is a pocket. A moving plate that utilizes the elastic deformation of the material.

or engaged with a fixed part of the device.

[Effect]

The movable plate and pocket can be easily engaged and assembled without using fixing devices such as screws because they are inserted or locked by elastic deformation of the material.

In addition, since there is no need for two disassembly inspections, a deterioration in the performance of the device due to the generation of thread shavings during reassembly, or replacement with new parts due to thread breakage, serviceability such as inspections at the time of manufacture or in the market is improved.

〔Example〕

An embodiment of the present invention will be described with reference to FIGS. 1 to 15.

Fig. 12 shows the appearance of an optical disk drive device in which a loading mechanism according to the present invention is installed, and shows a front panel 1, a cassette insertion slot 2°, and a cassette (not shown in the figure) ejected using electrical power. It is covered with a cover 4 and has a button 3 for starting the operation.

Showing only the internal loading mechanism of the drive device,
As shown in FIG. 13, a frame 8. supports the functional part from the chassis 5 via a viscoelastic member 6 and is fixed with screws 7.
Pocket 9 for storing a cassette (not shown). It consists of a moving plate 11 equipped with a rack 1o.

In the figure, moder 12. Worm 13° Worm foil 14. Gear A15. The gears B16 are engaged with each other, and the gears B16. Since the rack 1o is engaged with the frame 8, the frame 8 and the movable plate 11 are engaged with each other.

Moving plate 11. Pocket 9. The detailed engagement state of the frame 8 is shown in FIG. 11, where the studs 11α provided parallel to the left and right upright parallel parts of the moving plate 11 engage the ninth inclined groove of the pocket 9 (shown in FIG. 8). A short stud 8b (shown in FIG. 1) of the frame 8 passes through the parallel groove 11b (shown in FIG. 2) of the moving plate 11. The long studs 8α of the frame 8 support the parallel lower ends 9b, '9c of the pocket 9. Also, the stud 1 of the movable plate 11 is in the pocket 9.
1, the protrusion 9d which starts descending eastward due to the action of the inclined groove 9 (L) and the i-groove 9e that engages with the long stud 8α of the frame 8 and restricts the downward movement of the pocket 9 are connected to the parallel lower end 9b, It is connected to 9c.

A cassette is inserted into the cassette insertion slot 2 of the optical disk drive device shown in FIG. 12 into the loading mechanism having the above configuration, and when a certain amount is inserted, it engages with the switch and the mode 12 shown in FIG. forward rotation, 11th,
From the state shown in Fig. 13, the worm 13. is engaged with the cassette (not shown) stored therein. Worm wheel 14.
Gear A15, gear B16. rotates, and the rack 1o moves in the direction of arrow (A). For this reason, the moving plate 11. The pocket 9 also moves in the direction of arrow (A) at the same time, and when it moves by a certain amount, the protrusion 9d of the pocket 9 as shown in FIG.
Due to the action of the stud 11 (L) of the movable plate 11 and the inclined groove 9cL of the pocket 9, the outer diameter of the stud 8α abuts the L groove 9e of the pocket 9 against the horizontal movement of the movable plate 9. The horizontal movement of the movable plate 11 moves further and then comes into contact with a mechanical switch (not shown) and stops.At this time, the pocket 9 is inserted into the pocket 9 when the cassette (not shown) is placed on the recording/reproducing means. 14, and the cassette insertion operation is completed.The cassette ejection operation is performed by pressing the button 3 shown in FIG. 12 and rotating the moder 12 in the reverse direction to reverse the insertion operation, and the cassette ejection operation is as shown in FIG. 13. return to the state of

Frame 8 with the above configuration and operation. The detailed shape of each of the pockets 9 and the movable plate 11 to be assembled without screws will be described below.

The frame 8 and the moving plate 11 are assembled as shown in FIG.
and the position of the moving plate 11 in the front and back direction).
d, and extend the parallel hole 11b of the movable plate 11 forward and backward as shown in FIG.

The frame 8 having the above-mentioned shape is provided with a shape that opens rearward like a lid, and the open-shaped portion 11c of the movable plate 11 and the lid are connected to the short stud 8 of the frame 8, as shown in FIG.
Assemble it into the state shown in Figure 4 through b. After that, as shown in FIGS. 5 and 6, the rack 10 is returned to the forward stop position of the movable plate 11.
By fixing them with screws 17, the movable plate 11 and frame 8 can be prevented from coming apart in the vertical direction. This assembled state is frame SA.
It is designated as SS18 and its perspective view is shown in FIG.

To assemble the frame SASS 18 and the pocket 9, as shown in FIG. Make it longer in the width direction. A parallel portion 9g that closes the groove 9e is provided, and the hole is connected to the stud 1.
Make it longer in the width direction of the C pocket 9 than the tip of the 1CL. Further, at the rear lower part is the rear open part lid of the assembly back movement plate 11.
A shape as shown in Fig. 9h is provided so that the rear end comes into contact with the bent surface of the spring and serves as a spring material.

When assembling, as shown in FIG.
α is brought into contact with the inclined groove 91, and the spring portion 9h is bent toward the front in the same figure, and brought into contact with the end surface of the rear open portion lid of the movable plate 11, and is inserted into the inclined groove 1 and 9&.
0.11 It can be assembled as shown in figure.

Therefore, according to the present invention, the main large part 3 of the loading mechanism
The points can be assembled without screws.

〔Effect of the invention〕

According to the present invention, the pocket for storing the cassette of the loading mechanism can be assembled using the elastic deformation of the material, and the movable plate can be locked at any position beyond the normal travel distance without being directly screwed, reducing the number of assembly steps. It has the effect of reducing

Furthermore, since screws and the like are not required for assembling the pocket, it is possible to prevent deterioration in performance due to screw shavings, and there is no need to replace main parts due to thread breakage, which has the effect of improving serviceability.

Since there are no screws to remove the C-pocket, screw shavings are not generated as mentioned above, and the device can be disassembled and inspected while the recording and playback unit is fixed to the loading mechanism, which improves productivity and improves service. It has the effect of improving sex.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing a single frame according to an embodiment of the present invention, Fig. 2 is a perspective view showing a moving plate, and Figs. 3 and 4 are side views showing a method of assembling the frame and moving plate. The diagram as seen, Figure 5 is the diagram after assembly, Figure 6 is the diagram after assembly.
A detailed view of part A in the figure, FIG. 7 is a perspective view of the frame SASS after the frame and moving plate are assembled, FIG. 8 is a perspective view showing a single pocket according to an embodiment of the present invention, and FIG. 9 is a perspective view of the frame SAS
How to assemble the S and pocket. Fig. 10 is a sketch seen from the side after assembly. Fig. 11 is a perspective view thereof. Fig. 12 is a diagram of an optical disk drive device incorporating the loading mechanism of the present invention. A perspective view showing the exterior, Figures 13 and 14 are plan views showing the inside, and Figure 15 is a perspective view showing the inside.
It is a BB sectional view of the figure. 1...Front panel, 2...Cassette insertion slot. 3...Button, 4...Cover, 5...Chassis,
6... Viscoelastic member, 7... Screw, 8... Frame, 9... Pocket, 10... Rack, 11... Moving plate, 12... Mold, 13... Worm , 14
...worm wheel. (5...Gear A, 16...Gear B, 17...Screw. 18...Frame SASS. To 8...Long stud of the frame. 8b...Short stud of the frame. 8c...・Through-hole of the frame rack. 8d... Portion expanded forward by the through-hole of the frame rack. 9α... Inclined groove of the pocket. 9b... Lower end of the pocket. 9c... The part of the pocket Lower end. 9d... Protrusion of the pocket. 9e... L groove of the pocket. 9f... Parallel part where the inclined groove 9α of the pocket closes. 9g... Pocket. 9h... Spring material part of the pocket. 11α ... Stud of the movable plate. 11b... Parallel groove of the movable plate. 11c... Open shape of the movable plate in the upright downward direction. 11, cl... Rear open shape of the movable plate. Fig. 1, Fig. 6 Fig./l Fig. 2//b 3rd Fig. 9 Atsushi 10 Also? Envy H Fig. 72 Small No. 1 Cow Fig. 1B Saturday Hitachi Manufacturing Agent Assistant 'E'' subject. Amendment 0 Contents Figure 18 of Drawing 11 is deleted. 2. Figure 13 of Drawing is added as attached. Figure 13

Claims (1)

[Claims] 1. When assembling a movable plate that transmits the driving force for inserting and ejecting a disk or cassette from a power source to the frame of a loading mechanism, parallel grooves provided in the left and right upright planes of the movable plate are used. , the action of inserting and ejecting a disc or cassette by penetrating the studs provided on the left and right upright planes of the frame, inserting the rollers provided on the top surface of the moving plate into the elongated holes provided on the top surface of the frame. In order to do this by moving the moving plate in the front and back direction, extend the long holes of the frame and the parallel grooves of the moving plate out of the range of required movement. Stretch it out further, bend the bottom or rear end so that the tip of the stud of the frame can fit in, and make a hole that is continuous with the parallel groove so that the stud part of the frame can be inserted, and the roller of the moving plate fits into the long hole of the frame outside of the stroke. A disk insertion/ejection device characterized in that the studs of the frame are passed through continuous portions of the parallel grooves of the moving plate, and other parts are packed into the elongated holes of the frame to compensate for the amount of overstroke. 2. In claim 1, a pocket for storing a cassette in a frame SASS in which the frame and the movable plate are assembled is provided with another stud B provided in the frame to support the lower end of the pocket in the left and right upright planes, and the movable plate A device in which a stud C provided in the pocket is passed through a groove provided in the upright plane of the pocket, and the cassette is moved horizontally and then vertically by receiving the driving force of a moving plate to position the cassette on the recording and reproducing means. The end of the groove in the plane is made to protrude from the tip of the stud C of the movable plate, and the stud C is inserted into the groove. A disk insertion/ejection device characterized in that an elastic long piece member provided at the section is assembled by elastically deforming and coming into contact with a bent section of the movable plate.