JP3130310U - Disk unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dustproof function and a function for preventing a traverse chassis from falling too low.
A loader chassis 6 is mounted on a bottom chassis 1b of a housing 1 on both left and right bases 7,8.
The chassis main body 13 mounted with the turntable 14 and the optical pickup is fixed.
A traverse chassis 13 composed of A and a lifting body 13B is disposed in the loader chassis 6, and a pair of guide pieces 19 integrally projecting at both ends of the lifting body 13B are integrally projected on both side plates 6a of the loader chassis 6. A synthetic resin dust cover 35 that is engaged with the upper and lower portions 20 and covers the lower surface of the loader chassis 6 is provided, and one stopper 36 cut out from the sheet metal base 7 approaches the lower end of one guide frame 20. The other stopper 37 that is disposed and integrally formed with the dust cover 35 is disposed close to the lower end of the other guide frame 20, and the stoppers 36 and 37 prevent the guide pieces 19 from being detached from the guide frames 20. Stop at.
[Selection] Figure 2

Description

The present invention relates to a disk device such as a magnetic tape device-integrated DVD recorder, and in particular, has a dustproof function and a function to prevent the traverse chassis from being lowered too much.

FIG. 10 to FIG. 15 show an example of a conventional disk device, which is a magnetic tape device integrated DVD recorder. FIG. 10 is a front view of the same, and FIG.
12 is an enlarged longitudinal sectional view, FIG. 13 is an enlarged transverse sectional view, FIG. 14 is a perspective view of the main part, and FIG. 15 is an exploded perspective view.

As shown in FIGS. 10 and 11, a disk device main body 2 and a magnetic tape device 3 are provided side by side in a housing 1, and a disk outlet 4 and a tape cassette outlet 5 are provided on a front panel 1 a of the housing 1. Are formed at substantially the same height h, and the loader chassis 6 of the disk device main body 2 is fixed on the bottom chassis 1b of the housing 1 via the left and right bases 7 and 8, and the loader chassis 6
A disk D loading tray 9 supported so as to be able to move forward and backward a and b is opposed to the disk outlet 4. Reference numerals 10 and 11 are open / close doors arranged at the respective outlets 4 and 5 so as to be opened and closed.

As shown in FIGS. 12 to 14, a traverse chassis 13 comprising a chassis main body 13A and a synthetic resin lifting body 13B is disposed in a loader chassis 6, and the chassis main body 13A
A spindle motor 15 with a turntable 14 is mounted on the front of the optical system, and an optical pickup 16 with an objective lens OL is mounted on the rear of the chassis main body 13A so that the rear of the chassis main body 13A is made of rubber. The loader chassis 6 is connected to the loader chassis 6 through an elastic body 17 so that it can move up and down, and the front part of the chassis body 13A is connected to the lift body 13B through a front elastic body 18 made of rubber. A pair of guide pieces 19 projecting integrally from both ends of the body 13B is engaged with a guide frame 20 projecting integrally from both side plates 6a of the loader chassis 6 so as to be movable up and down.

As shown in FIGS. 12 and 14, the loader chassis 6 is provided with a cam slider 22 slidable along the left and right directions e and f perpendicular to the forward and backward a and b directions.
The cam slider 22 and the elevating body 13B are connected to each other via a cam mechanism 23 including a cam groove 23a formed in the No. 2 and a cam pin 23b protruding from the elevating body 13B and fitted into the cam groove 23a.

As shown in FIGS. 13 and 15, the cross beam 2 laid between both side plates 6 a of the loader chassis 6.
A clamper 26 is disposed in a clamper storage portion 25a provided at the center of 5 so as to be able to move up and down within a certain range. The clamper 26 and the turntable 14 clamp the disk D.

As shown in FIGS. 13 and 15, screw insertion holes 29 are provided in the bottom plate 28a of the total of four leg portions 28 in the front and rear two integrally projecting from each side plate 6a of the loader chassis 6, and the bottom plate 28a. A positioning projection 30 is integrally projected on the lower surface of the base plate, one base 7 is formed of sheet metal, and the other substrate 8 is divided into two front and rear parts and formed of synthetic resin.
8 is fixed to the bottom chassis 1b by screws 27, and screw holes 31 and positioning holes 32 are formed on the upper surfaces of the bases 7 and 8, and the positioning protrusions 30 are fitted into the positioning holes 32. After the leg portions 28 are placed on the upper surfaces of the bases 7 and 8, the screw 33 is screwed into the screw holes 31 through the appropriate screw insertion holes 29, so that the loader chassis 6 is attached to the bases 7 and 8. It is fixed.

The operation principle will be described. The solid line in FIG. 12 shows the play mode. By sliding the cam slider 22 in the direction of arrow e based on the loading signal, the elevating body 13B is moved along the guide frame 20 via the cam mechanism 23. And by moving the chassis body 13A upward through the front elastic body 18 to a horizontal position, the disk D on the tray 9 is
Is lifted by the turntable 14, and the turntable 14 and the clamper 26 disc D
, The disk D is rotated at high speed via the turntable 14 by the spindle motor 15, and the information recorded on the disk D is read by the optical pickup 16,
Play or record video information.

By sliding the cam slider 22 in the direction of arrow f when the tray is open,
By lowering the elevating body 13B along the guide frame 20 via the cam mechanism 23 and lowering the chassis main body 13A via the front elastic body 18 into an inclined posture (see the phantom line in FIG. 12). The disk D is transferred from the turntable 14 onto the tray 9, the tray 9 is moved forward a, the disk D is removed from the tray 9, and a new disk D is placed. In addition, there exists what was described in patent document 1 as a related technique.
Japanese Patent Laid-Open No. 2004-253130

In the above conventional configuration, as shown in FIG. 13, the disk device main body 2 is placed on the bases 7 and 8 to be raised, and a large space R is formed between the disk device main body 2 and the bottom chassis 1b. Therefore, the air flow E generated by rotating the disk D at a high speed is sucked into the loader chassis 6 through the space R, and the dust carried by the air flow E adheres to the objective lens OL and the like. As a result, a reading error may occur or a failure may occur.

Further, when an impact such as a drop is applied to the casing 1 in the tray open state (see the phantom line in FIG. 12), the traverse chassis 13 is lowered too much by the impact, as shown by the phantom line S in FIG. The elevating body 13B tilts around the cam pin 23b, and the one guide piece 19 may be detached from the guide frame 20. In this case, the traverse chassis 13 cannot be moved up and down c and d in a predetermined manner.

An object of the present invention is to provide a disk device having a dustproof function and a function for preventing the traverse chassis from being lowered too much.

In order to achieve the above object, according to the first aspect of the present invention, a disk device main body and a magnetic tape device are juxtaposed in a housing, and a disk outlet and a tape cassette outlet are substantially disposed on the front panel of the housing. A disk loading tray formed at the same height, the loader chassis of the disk device main body being fixed to the bottom chassis of the housing via both left and right bases, and supported by the loader chassis so as to be able to move forward and backward. A traverse chassis, which is opposed to the disk outlet and is composed of a chassis body mounted with a turntable and an optical pickup and a lifting body, is disposed in the loader chassis, and the rear part of the chassis body is connected to the loader chassis via a rear elastic body. In addition to being connected, the front part of the chassis body is connected to the lifting body via a front elastic body, and integrally projecting at both ends of the lifting body A pair of guide pieces are engaged with guide frames integrally projecting on both side plates of the loader chassis so as to be able to move up and down, and are slidable along the left and right directions perpendicular to the forward and backward direction at the front part of the loader chassis. The elevating body is interlocked with the cam mechanism. When the tray is opened, the elevating body is lowered along the guide frame by sliding the cam slider in the left and right directions, and the front elastic In the disk device in which the chassis body is moved down through the body, the disk on the turntable is transferred onto the tray, and the tray is advanced, a synthetic resin dust cover is provided to cover the lower surface of the loader chassis. One of the two bases is made of sheet metal, and one stopper cut out from the sheet metal base is the one The other stopper, which is disposed close to the lower end of the guide frame and is integrally formed with the dust cover, is disposed close to the lower end of the other guide frame, and each guide piece is separated from each guide frame. It is characterized by blocking with both stoppers.

According to the second aspect of the present invention, the disk device main body is disposed in the housing, the loader chassis of the disk device main body is fixed on the bottom chassis of the housing via the left and right bases, and the disk is mounted on the loader chassis. A mounting tray is supported so as to be able to move forward and backward, a traverse chassis comprising a chassis body and a lifting body mounted with a turntable and an optical pickup is disposed in the loader chassis, and a rear portion of the chassis body is interposed via a rear elastic body. A pair of guide pieces integrally projecting from both ends of the lifting body are connected to the loader chassis, and a front portion of the chassis body is connected to the lifting body via a front elastic body. Is engaged with a guide frame integrally projecting to the front of the loader chassis. The elevating body is linked to a movable cam slider via a cam mechanism, and when the tray is opened, the elevating body is lowered along the guide frame via the cam mechanism by sliding the cam slider in the left and right directions. At the same time, the chassis body is moved down via the front elastic body, and the disk on the turntable is moved onto the tray.
In the disk device in which the tray is moved forward, a synthetic resin dust cover that covers the lower surface of the loader chassis is provided, and a pair of stoppers that prevent the guide pieces from being detached from the guide frames are provided in the guide frames. It is characterized by being provided close to the lower end of the.

The invention according to claim 3 is the invention according to claim 2, wherein one of the two stoppers is cut out from the one base made of sheet metal and the other stopper is the dust cover. It is characterized in that it is integrally molded.

The invention according to claim 4 is the invention according to claim 2, wherein one of the stoppers is cut out from the one base made of sheet metal and the other stopper is elastic to the dust cover. The other stopper is positioned so as to be displaceable, and the other stopper is positioned above the one stopper by the amount of elastic displacement, and the other stopper is elastically displaced by applying a guide piece to the other stopper. The other guide piece displaced and the one guide piece prevent the elevating body from descending.

The device described in claim 5 is characterized in that, in the device described in claim 2, the stoppers are integrally formed with the dust cover.

The invention according to claim 6 is the invention according to claim 2, wherein both the stoppers are integrally projected on the dust cover so as to be elastically displaceable, and each stopper is applied by applying a guide piece to each stopper. It is characterized in that it is elastically displaced and the lowering of the elevating body is prevented by both elastically displaced stoppers.

The invention described in claim 1 corresponds to the first embodiment (see FIGS. 1 to 6), and according to this, the disk device main body is placed on the base and raised. As a result, a large space is created between the disk device main body and the bottom chassis, and the lower surface of the loader chassis is covered with the dust cover even if the air flow generated by rotating the disk at a high speed flows into the space. As a result, no airflow is drawn into the loader chassis. Therefore, it is possible to reliably prevent accidents in which the dust carried by the air flow sucked into the loader chassis adheres to the objective lens of the optical pickup and causes a reading error or cause a failure. Can do.

For example, when an impact such as a drop is applied to the chassis in the tray open state, even if the guide piece is detached from the guide frame due to the impact, the separation is blocked by the stopper, so the traverse chassis is too lowered. And the traverse chassis can be smoothly moved up and down as prescribed.

Furthermore, one stopper is cut out from one base made of sheet metal, and the other stopper is formed integrally with the dust cover, and each stopper is formed using the existing base and the dust cover. Therefore, it does not lead to an increase in cost and is economical.

The invention according to claim 2 corresponds to the basic form, and according to this, the disk device main body is placed on the base and raised to raise the space between the disk device main body and the bottom chassis. Even if an air flow generated by rotating the disk at a high speed flows into the space, the lower surface of the loader chassis is covered with the dust cover. Is not inhaled. Therefore, it is possible to reliably prevent accidents in which the dust carried by the air flow sucked into the loader chassis adheres to the objective lens of the optical pickup and causes a reading error or cause a failure. Can do.

For example, when an impact such as a drop is applied to the chassis in the tray open state, even if the guide piece is detached from the guide frame due to the impact, the separation is blocked by the stopper, so the traverse chassis is too lowered. And the traverse chassis can be smoothly moved up and down as prescribed.

According to the third aspect of the present invention, one stopper is cut out from one base made of sheet metal, and the other stopper is integrally formed with the dust cover. Since each stopper is formed by using it, the cost is not increased and the cost is excellent.

The invention described in claim 4 corresponds to the second embodiment (see FIG. 7). According to this, when a guide piece lowered by an impact such as dropping falls on the other stopper, the other way The stopper can be elastically displaced to alleviate the impact, and unpleasant collision noise can be prevented. Subsequently, the other elastically displaced stopper and one stopper are moved up and down through each guide piece. It is possible to prevent the body from descending and to reliably prevent the traverse chassis from being lowered too much.

The invention according to claim 5 corresponds to the third embodiment (see FIG. 8), and according to this, since both stoppers are formed using the dust cover, the cost is increased. It is not connected and is economical.

The invention according to claim 6 corresponds to the fourth embodiment (see FIG. 9), and according to this, each guide piece lowered by an impact such as dropping hits each stopper,
Each stopper can be elastically displaced to mitigate the impact, and unpleasant collision noise can be prevented. Subsequently, the lifted body is lowered through each guide piece by the elastically displaced stoppers. This prevents the traverse chassis from being lowered too much.

1 to 6 show a disk device according to a first embodiment of the present invention, which is a DVD recorder integrated with a magnetic tape device. FIG. 1 is an enlarged longitudinal sectional view of the same, and FIG. 3 is an exploded perspective view of the same, FIG. 4 is a perspective view of the dust cover, FIG. 5 is an enlarged vertical sectional view of a main part showing a fixed state of the dust cover, and FIG. 6A is a traverse. FIG. 6B is an AA arrow view showing an enlarged cross-sectional view of the main part showing the function of preventing the chassis from falling too much.

As shown in FIGS. 1 to 4, a synthetic resin dust cover 3 covering the lower surface of the loader chassis 6.
5, and a pair of stoppers 36 and 37 that prevent the guide pieces 19 from being detached from the guide frames 20 are provided close to the lower ends of the guide frames 20. Since the configuration other than the above is substantially the same as the configuration shown in FIGS. 10 to 15, the same parts are denoted by the same reference numerals and the description thereof is omitted.

As shown in FIG. 4, the dust cover 35 includes a bottom plate 35a having substantially the same plane shape as the loader chassis 6, and front and rear end plates 35b rising at right angles from front, rear, left and right edges of the bottom plate 35a.
35c and left and right side plates 35d and 35e, and base mounting plates 35A are integrally projected at the front and rear ends of the side plates 35d and 35e, respectively. Screw insertion holes 38 facing the respective screw holes 31 and intermediate holes 39 facing the respective positioning holes 32 are penetrated, and a plurality of (two in this embodiment) base mounting plates 35A are provided. Elastically displaceable U-shaped plate 4
0 is integrally projected.

The procedure for attaching the dust cover 35 will be described. The dust cover 35 is attached to the loader chassis 6.
Each U-shaped plate 40 is elastically displaced by being pressed against the lower surface of each of the U-plates so that the tip of the U-shaped plate 40 abuts on the upper surface of the bottom plate 28a of each leg portion 28, and each positioning projection 30 is moved to each intermediate hole. 3
9 so that the bottom plate 28a is sandwiched between the U-shaped plate 40 and the base mounting plate 35A, and the dust cover 35 is temporarily fixed to the lower surface of the loader chassis 6 (see FIGS. 3 and 5). ).
Thereafter, each base placing plate 35A is placed on the upper surface of each base 7, 7, and each positioning projection 30 is fitted into each positioning hole 32, and each screw is inserted through each screw insertion hole 29, 38. By screwing screws 33 into the holes 31 (see FIG. 5), the dust cover 35 and the loader chassis 6 are fixed to the bases 7 and 8 (see FIGS. 1 and 2).

According to the above configuration, as shown in FIG. 2, by placing the disk device body 2 on the bases 7 and 8 and raising the volume, a large space R is formed between the disk device body 2 and the bottom chassis 1b. Even if the air flow E generated by rotating the disk D at high speed flows into the space R, the lower surface of the loader chassis 6 is covered with the dust cover 35. Airflow E is not inhaled. Accordingly, it is possible to reliably prevent an accident in which the dust carried by the air flow E sucked into the loader chassis 6 adheres to the objective lens OL of the optical pickup 16 to cause a reading error or cause a failure. Can be prevented.

As shown in FIG. 6A, the one stopper 36 is a tongue piece cut out from the side plate portion of one base 7 made of sheet metal and extending horizontally, and the one stopper 36 is the dust cover 3.
5 is inserted into the dust cover 35 through the opening 35f, and a distance t1 from the upper surface of one stopper 36 to the lower end of the opposing guide frame 20 is set to be larger than the height k of the guide piece 19. Yes.

As shown in FIGS. 6 (a) and 6 (b), the other stopper 37 is a bottom plate 35 of the dust cover 35.
The distance t2 from the upper surface of the other stopper 37 to the lower end of the opposing guide frame 20 is determined from the height k of the guide piece 19 from a box frame that is integrally formed from a to one side plate 35e. Is also set larger.

According to the above configuration, for example, when an impact such as a drop is applied to the housing 1 in the tray open state (see the phantom line in FIG. 1), even if the guide piece 19 is separated from the guide frame 20 due to the impact, Since the detachment is prevented by the stoppers 36 and 37 (see the phantom line in FIG. 6), the traverse chassis 13 is reliably prevented from being lowered too much, and the traverse chassis 13 can be smoothly moved up and down c and d as predetermined. it can.

Further, since the stoppers 36 and 37 are formed using the existing base 7 and the dust cover 35, the cost is not increased and the economy is excellent.

FIG. 7 shows a disk device according to a second embodiment of the present invention. FIG. 7 (a) is an enlarged cross-sectional view of the main part showing the function of preventing the traverse chassis from being lowered too much, FIG. 7 (b). Is B-
B arrow figure and FIG.7 (c) are the expanded cross-sectional views of the principal part which show an excessive fall prevention state.

As shown in FIG. 7 (a), one stopper 36 is the same as that in the first embodiment (see FIG. 6), and the description thereof is omitted.

The other stopper 37 is an elastically displaceable tongue piece extending horizontally from one side plate 35e of the dust cover 35, and the other stopper 37 is positioned above the one stopper 36 by an elastic displacement amount α. . Since the configuration other than the above is substantially the same as that of the first embodiment (see FIGS. 1 to 6), the same portions are denoted by the same reference numerals and the description thereof is omitted.

According to the above configuration, as shown in FIG. 7 (c), when the guide piece 19 lowered by an impact such as a drop hits the other stopper 37, the other stopper 37 is elastically displaced to reduce the impact. In addition, it is possible to prevent the generation of unpleasant collision noises, and subsequently, the other stopper 37 and one stopper 36 which are elastically displaced are prevented from descending the lifting body 13B via the respective guide pieces 19, thereby the traverse chassis. Thus, it is possible to reliably prevent 13 from falling too low.

FIG. 8 is an enlarged cross-sectional view of the main part showing the function of preventing the traverse chassis from falling too low in the disk apparatus according to the third embodiment of the present invention.

As shown in FIG. 8, both stoppers 36 and 37 are formed of a box-shaped frame having a substantially U-shaped cross section integrally formed from the bottom plate 35a of the dust cover 35 to the side plates 35d and 35e. It has the same structure as one of the stoppers 36 (see FIGS. 6A and 6B). Since the configuration other than the above is substantially the same as that of the first embodiment (see FIGS. 1 to 6), the same portions are denoted by the same reference numerals and the description thereof is omitted.

According to the above configuration, since both stoppers 36 and 37 are formed using the dust cover 35, the cost is not increased and the cost is excellent.

FIG. 9 is an enlarged cross-sectional view of the main part showing the function of preventing the traverse chassis from falling too low in the disk apparatus according to the fourth embodiment of the present invention.

As shown in FIG. 9, both stoppers 36 and 37 are provided on the side plates 35 d and 35 of the dust cover 35.
The second embodiment [FIG. 7 (a) is composed of an elastically displaceable tongue extending horizontally from e.
To the other stopper 37 of (see (c)). Since the configuration other than the above is substantially the same as that of the first embodiment (see FIGS. 1 to 6), the same portions are denoted by the same reference numerals and the description thereof is omitted.

According to the above configuration, each guide piece 19 lowered due to an impact such as dropping is provided with each stopper 36,
37 (see the phantom line in FIG. 9), the stoppers 36 and 37 can be elastically displaced to alleviate the impact, and the generation of unpleasant collision noise can be prevented, followed by the elastic displacement. Both the stoppers 36 and 37 can prevent the elevating body 13 </ b> B from descending via the guide pieces 19, and reliably prevent the traverse chassis 13 from being excessively lowered.

In the above embodiment, the magnetic tape device integrated DVD recorder has been described as an example. However, the present invention is not limited to this, and the present invention is also applicable to a single disk device (DVD recorder, DVD player).

1 is an enlarged longitudinal sectional view of a disk device according to a first embodiment of the present invention. FIG. It is the same exploded perspective view. It is a perspective view of the dust cover. It is an expanded vertical sectional view of the principal part which shows the fixed state of the dust cover. (A) is an expanded horizontal sectional view of the principal part which shows the excessive fall prevention function of a traverse chassis, (b) is an AA arrow directional view. (A) is an enlarged cross-sectional view of the main part showing the function of preventing the traverse chassis from falling too low in the disk apparatus according to the second embodiment of the present invention, (b) is a view taken along the line B-B, and (c) is a cross-sectional view. It is an expanded cross-sectional view of the principal part which shows a state which prevents too much falling. FIG. 10 is an enlarged cross-sectional view of a main part showing a function of preventing the traverse chassis from falling too low in a disk drive according to a third embodiment of the present invention. It is an expanded horizontal sectional view of the principal part which shows the excessive fall prevention function of the traverse chassis in the disc apparatus which is the 4th Embodiment of this invention. It is a front view which shows a prior art example. It is the same part notch top view. It is the same expanded longitudinal cross-sectional view. FIG. It is a perspective view of the principal part. It is the same exploded perspective view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Case 1a Front panel 1b Bottom chassis 2 Disk apparatus main body 3 Magnetic tape apparatus 4 Disk outlet 5 Tape cassette outlet 6 Loader chassis 6a Loader chassis side plate 7, 8 Base 9 Tray 13 Traverse chassis 13A Traverse chassis chassis main body 13B Traverse Chassis Lifting Body 14 Turntable 16 Optical Pickup 17 Rear Elastic Body 18 Front Elastic Body 19 Guide Piece 20 Guide Frame 22 Cam Slider 23 Cam Mechanism 35 Dust Cover 36 One Stopper 37 Other Stopper D Disk α Elastic Displacement

Claims (6)

A disk device main body and a magnetic tape device are juxtaposed in a housing, and a disk outlet and a tape cassette outlet are formed at substantially the same height on the front panel of the housing. A chassis mounted with a turntable and an optical pickup mounted on a bottom chassis of the body through a left and right base and supported by the loader chassis so that the disk mounting tray is opposed to the disk outlet. A traverse chassis comprising a main body and a lifting body is disposed in the loader chassis, a rear portion of the chassis main body is connected to the loader chassis via a rear elastic body, and a front portion of the chassis main body is a front elastic body. And a pair of guide pieces integrally projectingly provided at both ends of the elevating body are provided on both side plates of the loader chassis. The elevating body is interlocked and connected via a cam mechanism to a cam slider that is slidably engaged with a guide frame that protrudes integrally, and is slidable along the left-right direction perpendicular to the forward-rearward direction at the front portion of the loader chassis. When the tray is opened, the cam slider is slid in one direction left and right to lower the lifting body along the guide frame via the cam mechanism, and the chassis body is moved downward via the front elastic body to turn the turntable. In the disk device in which the upper disk is transferred onto the tray and the tray is advanced, a synthetic resin dust cover is provided to cover the lower surface of the loader chassis, and one of the two bases is formed of sheet metal And one stopper cut out from the sheet metal base is disposed close to the lower end of the one guide frame, The other stopper integrally molded with the other is arranged close to the lower end of the other guide frame, and the stoppers prevent the guide pieces from being detached from the guide frames. Disk unit. The disk device main body is arranged in the housing, the loader chassis of the disk device main body is fixed on the bottom chassis of the housing via the left and right bases, and the disk loading tray is supported on the loader chassis so that the disk mounting tray can be moved forward and backward. A traverse chassis comprising a chassis body and a lifting body on which a turntable and an optical pickup are mounted is disposed in the loader chassis, and a rear portion of the chassis body is connected to the loader chassis via a rear elastic body, A front portion of the chassis body is connected to the lifting body via a front elastic body, and a pair of guide pieces integrally projecting at both ends of the lifting body is raised and lowered to guide frames integrally projecting on both side plates of the loader chassis. A cam slider that is slidable along the left-right direction perpendicular to the forward-backward direction at the front of the loader chassis. The elevating body is interlocked and connected via a cam mechanism, and when the tray is opened, the cam slider is slid in one direction left and right to lower the elevating body along the guide frame via the cam mechanism, and the front elastic body In the disk device in which the chassis main body is moved downward, the disk on the turntable is transferred onto the tray, and the tray is advanced, a synthetic resin dust cover is provided to cover the lower surface of the loader chassis, A disk device, wherein a pair of stoppers for preventing the guide pieces from being detached from the guide frames are provided close to the lower ends of the guide frames. 3. The disk according to claim 2, wherein one of the two stoppers is cut out from the one base made of sheet metal, and the other stopper is integrally formed with the dust cover. apparatus. Of the two stoppers, one of the stoppers is cut out from the one base made of sheet metal, and the other stopper is integrally projected on the dust cover so as to be elastically displaceable, and the other stopper is more than the one stopper. Positioned upward by the amount of elastic displacement, the other stopper is elastically displaced by applying the guide piece to the other stopper, and the elevator body is lowered by the elastically displaced other guide piece and one guide piece. 3. The disk device according to claim 2, wherein the disk device is blocked. 3. The disk device according to claim 2, wherein the stoppers are integrally formed with the dust cover. The stoppers are integrally projected on the dust cover so as to be elastically displaceable, and the stoppers are elastically displaced by applying guide pieces to the stoppers, and the elastically displaced stoppers prevent the lifting body from descending. 3. The disk device according to claim 2, wherein the disk device is configured as described above.

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