JPH0973699A - Housing member projecting device and disk device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a large projecting stroke in a small space by making a mechanism composed of plural arm-like members and elastic members and capable of continuously projecting these members. SOLUTION: A 2nd push-arm 105 and a 4th push-arm 107 of a push-tray mechanism 120 are opposite to each other, and are housed in a 1st push-arm 104 and a 3rd push-arm 106. Subsequently, when press-down force of an ejector button 113 is transmitted to a lock arm 112, and hence the lock arm 112 is detached from a restraining part to release a tray 102 from its locking, the arm 104 is driven toward the front of a body chassis 100 by receiving elastic restoring force of a 1st push-spring 108. Then, by elastic restoring force of 2nd to 4th push-springs 109 to 111 fitted to connecting hinge parts in the individual arms 105 to 107, the arms 105 to 107 are opened to be separated from each other, and the tray 102 is projected out of the body chassis 100.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc device for writing information on a disc or reproducing information from the disc, and more particularly, it has a mechanism for ejecting a tray on which the disc is placed by utilizing the elastic restoring force of a spring. The present invention relates to a disk device.

[0002]

2. Description of the Related Art In recent years, disk devices have become smaller and smaller, and a method of ejecting or storing a tray on which a disk is placed is also small in a rack and pinion system using a motor, which is a general system. Since it is difficult to realize this, a method that utilizes the reaction force of the spring to eject the tray has become the mainstream in a small disc device.

FIG. 9 shows the structure of a conventional disk device. As shown in FIG.
Is a body chassis 300, a push arm 301,
Push spring 302 and push roller 303
, Optical pickup 304, tray 305, rail 306, lock arm 207, eject button 3
08 is configured. The push arm 301, the push spring 302, and the push roller 303 form a tray push mechanism.

The main body chassis 300 supports the entire disk device 30. Also, the main body chassis 30
At 0, a locking portion 300L is provided. Tray 30
A disk (not shown) 5 is mounted and a mechanism 5 such as an optical pickup 304 and a substrate described later is housed therein. The push arm 301 includes a tray 305 and a main body chassis 3
00 is an arm member for discharging from 00. The push spring 302 uses the elastic restoring force to push the push arm 30.
1 is driven in the tray ejection direction. Push roller 303
Guides the end surface of the tray 305 to operate smoothly. The optical pickup 304 writes data in a disc (not shown) or reads data from the disc.
The rail 306 restrains the tray 305 in its operation direction. The lock arm 307 has a claw portion 307N at the tip thereof, so that the tray 305 holds the locking portion 30 of the main chassis 300.
Lock with 0L. The eject button 308 transmits the ejection command operation of the tray 305 to the lock arm 307.

Next, the disc ejecting operation when the disc is attached and detached in the disc device 30 will be described with reference to FIG. First, when the operator presses the eject button 308 attached to the tray 305, the operation shown in FIG.
As shown in (a), the claw portion 307N at the tip of the lock arm 307 is disengaged from the locking portion 300L, and the tray 305 is unlocked.

Next, as shown in FIG. 10B, the push arm 301 pushes the tray 305 to the outside by the elastic restoring force of the push spring 302. 11 (a) and 11 (b) show the state of tray conveyance by this series of pushing operations. In this case, the operator has to pull out the tray 305 from the state shown in FIG. 11B to a position where the disc can be attached and detached as shown in FIG.

In the case of loading a disk, contrary to the above, the operator pushes the tray until the state of FIG.
07N is hooked on the locking portion 300L of the main body chassis 300, and is put in the stored state. At this time, push spring 30
2 is deformed by pushing in the tray 305, and stores the elastic force for the next tray ejection.

[0008]

However, in the tray push mechanism of the disc device as described above,
The ejection stroke of the tray due to the elastic restoring force of the spring is short, and the operator has to manually pull out or push in a portion of a predetermined length when the disc is attached or detached. Further, in the conventional mechanism of this type, the stroke amount of pushing is determined by the length and operating angle of the push arm. In order to increase the tray transfer stroke, it is necessary to increase the arm length.However, increasing the arm length increases the torque of the spring that operates the arm, so a large spring with a large wire diameter must be attached. There has been a problem that the entire push mechanism becomes large and runs counter to the demand for smaller disk devices.

The present invention has been made to solve the above problems, and the problem to be solved by the present invention is to lengthen the discharge stroke of a tray or the like on which a disc is placed, and also to reduce the size of the entire disc device. To provide a possible device.

[0010]

In order to solve the above-mentioned problems, the invention according to claim 1 is such that a housing member housed in a box-shaped main body whose one surface is open is projected outside the main body. A member protruding device, wherein the first arm is arranged so as to be located in the vicinity of a closed surface facing the open surface in the main body when the storage member is stored, and is rotatably arranged toward the open surface. The first arm-shaped member, the second arm-shaped member arranged closer to the open surface than the first arm-shaped member, and rotatably arranged toward the open surface. A first elastic member that urges toward the open surface, a second elastic member that urges the second arm-like member toward the open surface, and the storage member that is locked to the main body or the lock. After releasing the engagement / disengagement member that can release the The elastic restoring force of the first elastic member rotates the first arm-shaped member toward the open surface to drive the storage member toward the open surface, and the rotation of the first arm-shaped member. Before the end of the operation, the elastic restoring force of the second elastic member causes the second arm-shaped member to rotate toward the open surface to guide the storage member to further drive toward the open surface. And a guide member.

According to a second aspect of the present invention, a box-shaped main body chassis having one surface opened, a pickup for writing information on the disc or reproducing the information from the disc, and the main body chassis are housed in the main body chassis. And a tray projecting mechanism for projecting a tray on which the disk is mounted to the outside of the front surface of the main body chassis, wherein the tray projecting mechanism is configured such that when the tray is housed, the open front surface in the main body chassis is provided. A first arm member arranged so as to be located in the vicinity of a back surface of the main body and rotatably arranged toward the front surface of the main body; and a first arm member arranged closer to the front surface of the main body than the first arm member is. A second arm member rotatably arranged toward the front surface of the main body, and a first spring member for urging the first arm member toward the front surface of the main body. A second spring member that urges the second arm member toward the front surface of the main body, a lock member that locks or unlocks the tray with the main body chassis, and the tray to the main body chassis. After releasing the lock of the first spring member, the first arm member is rotated toward the front surface of the main body by the elastic restoring force of the first spring member to drive the tray toward the front surface of the main body, and Before the end of the rotation operation of the arm member, the elastic restoring force of the second spring member rotates the second arm member toward the front surface of the main body to further drive the tray toward the front surface of the main body. And a guide member for guiding.

[0012]

With this construction, the stroke for mechanically transporting the tray by the spring force is extended, and the work required for the user to pull out the tray by hand when attaching or detaching the disk is reduced. In addition, it does not require a large space and contributes to downsizing of the disc reproducing apparatus.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS This embodiment will be described below with reference to the drawings.

1 to 5 show the structure of a disk device according to a first embodiment of the present invention. As shown in the figure, this disk device 1 is a storage member projecting device.
0 is a main body chassis 100 and an optical pickup 101
A tray 102 which is a storage member, a rail 103,
First push arm 104 and second push arm 10
5, third push arm 106, fourth push arm 107, first push spring 108, second push spring 109, and third push spring 1
10, a fourth push spring 111, a lock arm 112, and an eject button 113. Here, the first push arm 104, the second push arm 105, the third push arm 106,
Fourth push arm 107, first push spring 108, second push spring 109, third push spring 110, and fourth push spring 11
1 constitutes a tray push mechanism 120. Here, the first push arm 104 and the second push arm 1
05 corresponds to the first arm-shaped member or the first arm member, and the third arm
The push arm 106 and the fourth push arm 107 correspond to the second arm-shaped member or the second arm member. Also,
The first push spring 108 and the second push spring 109 correspond to the first elastic member or the first spring member, and the third push spring 110 and the fourth push spring 111 correspond to the second elastic member or the second spring member. There is.

The main body chassis 100 supports the entire disk device 10. Optical pickup 101
Writes data to a disk (not shown) or reads data from the disk. The tray 102 houses a mechanism such as an optical pickup and a board. The rail 103 restrains the tray 102 so that it can move only forward and backward in the ejection direction.

The first push arm 104 is an arm member that is hinged to the main body chassis 100 by a hinge 104P. Second push arm 10
5 is a hinge 10 near the tip of the first push arm 104 so as to be rotatable with respect to the first push arm 104.
It is an arm-shaped member hinge-joined by 5P and is housed in the first push arm 104. The third push arm 106 is pivotable with respect to the tray 102 and is hinge 10.
It is an arm-shaped member hinge-joined by 6P. The fourth push arm 107 is an arm-shaped member hinge-joined by a hinge 107P near the tip of the third push arm 106 so as to be rotatable with respect to the third push arm 106. It is stored.

The first push spring 108 connects the first push arm 104 to the main body chassis 1 by the elastic restoring force.
00 in the direction away from the back surface 100B, that is, the first push arm 104 is driven in the direction toward the front of the main body chassis 100. The second push spring 109 drives the second push arm 105 in a direction away from the storage portion of the first push arm 104 by the elastic restoring force.
The third push spring 110 drives the third push arm 106 in the direction of approaching the tip portion of the first push arm 104 by the elastic restoring force. Due to the elastic restoring force, the fourth push spring 111 causes the fourth push arm 107 to approach the tip portion of the second push arm 105, that is, the direction in which the fourth push arm 107 separates from the storage portion of the third push arm 106. Drive to.

The lock arm 112 has a claw portion 1 at its tip.
12N, the tray 102 is locked by the locking portion 100L of the main body chassis 100. Eject button 113
Is provided on the front surface of the tray 102, and transmits a discharge command operation of the tray 102 given by the operator to the lock arm 112 via a rod-shaped member or the like. Here, the claw portion 112N of the lock arm 112 and the locking portion 1 of the main body chassis 100.
00L constitutes an engagement / disengagement member or a lock member.

The disk device 10 of the first embodiment of the present invention shown in FIGS. 1 to 5 is different from the conventional disk device 30 shown in FIGS. 9 to 11 in that a push arm 301, a push spring 302 and a push roller 303 are provided. The first push arm 104, the second push arm 105, the third push arm 106, and the fourth push arm 107 instead of the tray push mechanism 320 including
And a tray push mechanism 120 including a first push spring 108, a second push spring 109, a third push spring 110, and a fourth push spring 111.

Next, the operation of the disk device 10 according to the first embodiment of the present invention will be described with reference to FIG.
FIG. 2A shows a state where the tray 102 is stored. In this case, as shown in FIG. 3A, the tray push mechanism 120 is also stored. FIG.
In the housed state shown in (a), the first push arm 104 and the third push arm 106 facing each other have a stepped shape, and are configured to form a cavity inside and housed in a staggered manner when housed. In this case, the second push arm 105 and the fourth push arm 107
Face each other and are housed in the first push arm 104 and the third push arm 106.

Next, as shown in FIG. 2A, the tray 1
When the operator presses the eject button 113 attached to the front surface of 02 to give a discharge command operation for the tray 102, the pressing force is applied to the lock arm 11 by a rod-shaped member or the like.
2, the lock arm 112 is disengaged from the locking portion 100L, and the tray 102 is unlocked. When the tray is unlocked, as shown in FIG. 2B, the first push arm 104 receives the elastic restoring force of the first push spring 108 and the rear surface 100B of the main body chassis 100.
It is driven in the direction away from, that is, in the direction toward the front of the main body chassis 100. In this case, as shown in FIG. 3B, after the tray lock is released, the push springs attached to the connecting hinges in the push arms open so that the push arms are separated from each other by the elastic restoring force. By this operation, the tray 102 is projected to the outside of the main body chassis 100 by the elastic restoring force of each push spring (see FIG. 5B).

In the tray push mechanism 120 in the disk device 10 of this embodiment, as shown in FIG. 4, a tip 105F of the second push arm 105 and a tip 107F of the fourth push arm 107 have a meshing portion capable of meshing with each other. Formed, and usually the second push arm 10
The fifth push arm 107 and the fourth push arm 107 are rotatably joined to each other in a meshed state, and the meshing of the two is disengaged only when the angle formed by the two and the fourth push arm 107 becomes a certain angle or more as shown in FIG. ing. Tray 102
The tray 102 is guided by the rails 103 and is supported so as to be able to move smoothly inside the main body chassis 100, so that the tray 102 further projects outward of the main body chassis 100 due to inertia.
Along the way, each push arm 104, 105, 106,
As shown in FIG. 2B, 107 opens until it becomes a substantially W shape, at which point the second push arm 105 and the fourth push arm 107 are disengaged, and the tray 102 is opened.
Is finally completely pulled out to the state of FIG. 2 (c). The tray 102 is discharged to the outside by this series of tray drawing operations. In the above, the meshing portion 105F at the tip of the second push arm 105 and the meshing portion 107F at the tip of the fourth push arm 107 correspond to the projecting guide member or the guide member.

In the case of loading a disc, contrary to the above, the operator pushes in the tray until the state shown in FIG. The tray push mechanism 120 is folded in the direction, and finally the claw portion 112N of the lock arm 112 hangs on the locking portion 100L of the main body chassis 100 to be in the stored state. At this time, each push spring 108, 109, 110,
111 is deformed by pushing the tray 102, and stores an elastic force for the next tray ejection.

As described above, in the disk device 10 according to the first embodiment of the present invention, as described above, the tray push mechanism is of the folding type, whereby the length of each push arm is shortened and the push spring is also small. As a result, it has become possible to increase the tray transfer stroke amount in a small space. Further, since each push arm is normally connected at the central portion of the W-shaped structure and separated at the extended position, the tray can be completely projected to the outside of the main body chassis.

Next, a second embodiment of the present invention will be described. FIG. 6 shows the configuration of a disk device according to the second embodiment of the present invention. As shown in the figure, this disk device 20 which is a housing member projecting device includes a main body chassis 200, an optical pickup 201, a tray 202 which is a housing member, a rail 203, a first arm member or a first arm member.
A first push arm 204 which is an arm member, and a second push arm 2 which is a second arm member or a second arm member.
05, a first push spring 206 that is a first elastic member or a first spring member, a second push spring 207 that is a second elastic member or a second spring member, a first push roller 208, and a second push roller. 209, a lock arm 210, and an eject button 211. Here, the first push arm 204,
The second push arm 205, the first push spring 206, the second push spring 207, the first push roller 208, and the second push roller 209 constitute a tray push mechanism 220.

The main body chassis 200 supports the entire disk device 20. Optical pickup 201
Writes data to a disk (not shown) or reads data from the disk. The tray 202 houses a mechanism such as an optical pickup and a board. The rail 203 restrains the tray 202 so that it moves only forward and backward in the ejection direction.

The first push arm 204 is an arm member rotatably joined to the main body chassis 200 by a hinge 204P. Second push arm 20
Reference numeral 5 is also an arm-shaped member that is hinged to the main body chassis 200 by a hinge 205P.
However, the first push arm 204 is attached to a position closer to the back surface 200B of the main body chassis, and the second push arm 205 is attached to a position closer to the front part of the main body chassis 200.

The first push spring 206 pushes the first push arm 204 into the main body chassis 2 by the elastic restoring force.
00 away from the back surface 200B, that is, the first push arm 204 is driven in the direction toward the front of the main body chassis 200. In addition, the second push spring 207
Is driven by the elastic restoring force to move the second push arm 205 away from the side surface 200S of the main body chassis 200, that is, in the direction in which the second push arm 205 faces the front of the main body chassis 200. With such a configuration, the second push arm 205 operates after the tray 202 is pushed out by receiving the force of the first push arm 204.
02 can be pushed further forward.

The first push roller 208 is provided at the tip of the first push arm 204, and moves smoothly along the rib portion 202R (see FIGS. 7 and 8) of the tray 202. The second push roller 209 is provided at the tip of the second push arm 205, and the rib portion 202 of the tray 202.
Move smoothly along R.

The lock arm 210 has a claw portion 2 at its tip.
10N, the tray 202 is locked by the locking portion 200L of the main body chassis 200. Eject button 211
Is provided on the front surface of the tray 202 and transmits a discharge command operation of the tray 202 given by the operator to the lock arm 210 via a rod-shaped member or the like. Here, the claw portion 210N of the lock arm 210 and the locking portion 2 of the main body chassis 200
00L constitutes an engagement / disengagement member or a lock member.

The disk device 20 of the second embodiment of the present invention shown in FIGS. 6 to 8 is different from the conventional disk device 30 shown in FIGS. 9 to 11 in that a push arm 301, a push spring 302 and a push roller 303 are provided. Instead of the tray push mechanism 320 consisting of, the first push arm 204 and the second push arm 205, the first push spring 206 and the second push spring 207, the first push roller 208 and the second push roller 209. The point is that the tray push mechanism 220 is provided.

Next, the operation of the disk device 20 according to the second embodiment of the present invention will be described with reference to FIGS. 7 and 8. FIG. 7A shows a state where the tray 202 is stored. In this case, the operator presses the eject button 211 attached to the tray 202 to
When the ejection command operation 2 is given, the pushing force is transmitted to the lock arm 210 by the rod-shaped member or the like, the lock arm 210 is disengaged from the locking portion 200L, and the tray 202 is unlocked. When the tray is unlocked, Fig. 7
As shown in (b), the first push arm 204 is
It receives the elastic restoring force of the push spring 205 and is driven in a direction away from the rear surface 200B of the main body chassis 200, that is, in a direction toward the front of the main body chassis 200.
As a result, the rib portion 202 of the tray 202 is moved by the first push roller 208 at the tip of the first push arm 204.
When R is pushed, the tray 202 is pushed forward of the main body chassis 200.

When the pushing stroke of the first push arm 204 is completed, as shown in FIGS. 7B and 8A, the second push roller 209 at the tip of the second push arm 205 is moved to the rib portion of the tray 202. It moves along 202R, and further pushes the tray 202 toward the front of the main body chassis 200. Since the tray 202 is guided by the rails 203 and is supported so as to be able to move smoothly inside the main body chassis 200, the tray 202 further projects to the outside of the main body chassis 200 due to inertia, and the tray 202 is finally shown in FIG. It is completely pulled out to the state of (b). The tray 202 is discharged to the outside by this series of tray drawing operations. Here, the first push roller 208, the second push roller 209, and the rib portion 202R of the tray 202 are
It constitutes a projecting guide member or a guide member.

When the disc is loaded, the operator pushes the tray until the state shown in FIG. 7 (a) is reversed, so that the ribs on the tray 202 move in the opposite direction to the tray ejection. The second push roller 209 of the second push arm 205 and the first push roller 208 of the first push arm 204 move along the portion 202R, return to the original state, and finally the claw portion 210N of the lock arm 210 is finally attached to the main body chassis 200. It is hooked on the locking portion 200L and is in the stored state. At this time, each push spring 206, 20
7 is deformed by pushing the tray 202, and stores an elastic force for the next tray ejection.

As described above, in the disc device 20 according to the second embodiment of the present invention, by arranging two tray pushing mechanisms in front of and behind the tray ejecting direction, the respective pushing mechanisms are successively connected. As a result, pushing force can be applied to the tray, and in this case as well, it is possible to greatly increase the tray discharge stroke amount as in the disc device 10 of the first embodiment.

The present invention is not limited to the above embodiment. The above-described embodiment is an exemplification, and has substantially the same configuration as the technical idea described in the claims of the present invention, and any device having the same function and effect can be realized by the present invention. It is included in the technical scope of the invention.

For example, in each of the above-mentioned embodiments, a string-wound spring-like spring attached so as to be wound around the hinge portion of each push arm is shown as each push spring, but the present invention is not limited to this. Any spring may be used as long as it can apply a bias by elastic restoring force to each push arm, for example, a coil spring attached to the side of the push arm, a leaf spring attached to the side of the push arm. And so on.

Further, the arrangement position of each tray push mechanism is not limited to the position in each drawing of the above-mentioned embodiment, and it can be arranged at any position in the main body chassis as long as the tray can be discharged smoothly and completely. It doesn't matter.

Although an optical pickup is provided in each of the above embodiments, the present invention is not limited to this, and a non-contact type or contact type pickup such as a magnetic pickup or a magneto-optical pickup may be provided. May be.

Further, in each of the above embodiments, the tray of the disk device was described as an example of the storage member. However, the present invention is not limited to this, and it may be provided in a box-shaped main body having one open surface. Any device may be used as long as it is a device for ejecting a storage member that stores the storage member to be stored outside the main body.

[0041]

As described above, according to the present invention,
Since a mechanism for ejecting a storage member such as a tray is composed of at least two arm-shaped members and an elastic member for urging these members, and these are configured to continuously project and operate, the length of the arm-shaped members is shortened. You can also use weak springs,
It is possible to obtain a large protruding stroke in a small space. Therefore, it is possible to obtain a discharge stroke equivalent to that of a loading mechanism using a conventional motor, and it is possible to significantly reduce the work of the operator who manually pulls out a storage member such as a tray when attaching or detaching a disk. . Further, since the mechanism of the present invention does not require a large space, it has an effect that it greatly contributes to downsizing when used in a disk device, for example.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view showing a configuration of a disk device that is a first embodiment of the present invention.

FIG. 2 is a plan view showing the configuration of the disc device shown in FIG. 1 and the tray discharging operation.

FIG. 3 is a diagram showing an operation of a push mechanism in the disc reproducing apparatus according to claim 1 of the present invention.

FIG. 4 is a diagram showing an operation of a push mechanism in the disc reproducing apparatus according to claim 1 of the present invention.

5 is a perspective view showing a tray ejecting operation of the disc device shown in FIG. 1. FIG.

FIG. 6 is a partially cutaway perspective view showing the configuration of a disk device that is a second embodiment of the present invention.

FIG. 7 is a plan view (1) showing the configuration of the disk device shown in FIG. 6 and the tray discharging operation.

FIG. 8 is a plan view (2) showing the configuration of the disc device shown in FIG. 6 and the tray ejection operation.

FIG. 9 is a partially cutaway perspective view showing the configuration of a conventional disk device.

FIG. 10 is a plan view showing the configuration of the disc device shown in FIG. 9 and the tray ejection operation.

11 is a perspective view showing a tray discharging operation of the disc device shown in FIG.

[Explanation of symbols]

 10, 20, 30 Disk device 100 Main body chassis 100B Rear surface 100L Locking part 101 Optical pickup 102 Tray 103 Rail 104 First push arm 104P Hinge 105 Second push arm 105F Engagement part 105P Hinge 106 Third push arm 106P Hinge 107 Fourth Push arm 107F Meshing portion 107P Hinge 108 First push spring 109 Second push spring 110 Third push spring 111 Fourth push spring 112 Lock arm 112N Claw portion 113 Eject button 120 Tray push mechanism 200 Main body chassis 200B Rear surface 200L Locking portion 200S Side surface 201 Optical pickup 202 Tray 202R Rib portion 203 Rail 204 First push Arm 205 second push arm 206 first push spring 207 second push spring 208 first push roller 209 second push roller 210 lock arm 210N claw 211 eject button 220 tray push mechanism

Claims (2)

[Claims] 1. A storage member projecting device for projecting a storage member, which is stored in a box-shaped main body having one open surface, to the outside of the main body, the open surface in the main body when the storage member is stored. A first arm-shaped member that is arranged near a closed surface that faces the first arm-shaped member and is rotatably arranged toward the open surface; and a position closer to the open surface than the first arm-shaped member. A second arm-shaped member that is disposed so as to be rotatable toward the open surface, a first elastic member that biases the first arm-shaped member toward the open surface, and the second arm-shaped member A second elastic member for urging the storage member toward the open surface, an engagement / disengagement member for locking or unlocking the storage member with the main body, and locking of the storage member with the main body. After releasing, the elastic restoring force of the first elastic member causes the first arm member to move to the open surface. The storage member is driven toward the open surface by rotating the second arm member by the elastic restoring force of the second elastic member before the end of the rotation operation of the first arm member. And a projecting guide member that guides the storage member toward the open surface so as to drive the storage member further toward the open surface. 2. A box-shaped main body chassis having an open surface, a pickup for writing information on a disc or reproducing information from the disc, and a tray housed in the main body chassis for mounting the disc. A disk device having a tray protruding mechanism protruding outside the front surface of the chassis, wherein the tray protruding mechanism is located in the vicinity of a rear surface of the main body that faces the open front surface of the main body chassis when the tray is stored. Arm member arranged in such a manner as to be rotatable toward the front surface of the main body, and disposed so as to be closer to the front surface of the main body than the first arm member and rotatable toward the front surface of the main body. The second arm member arranged, the first spring member for urging the first arm member toward the front surface of the main body, and the second arm member for the main body. A second spring member that urges the tray toward the surface, a lock member that locks or unlocks the tray with the main body chassis, and a lock member that unlocks the tray with the main chassis, The elastic restoring force of the first spring member rotates the first arm member toward the front surface of the main body to drive the tray toward the front surface of the main body, and ends the rotation operation of the first arm member. And a guide member for rotating the second arm member toward the front surface of the main body by the elastic restoring force of the second spring member to guide the tray toward the front surface of the main body. A disk device characterized by the above.