JP2003130140A - Disk device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a disk device which can reduce cost by reducing the number of motors for driving a driving gear by rotationally driving five gears respectively and by driving five mechanism parts with one driving gear and a planetary gear. SOLUTION: A rotary tray rotating gear 5, a loading close gear 8 to close a tray 6 by being engaged with a rack 7, a chucking gear 9 to move a chucking mechanism upward, an unchucking gear 10 to move the chucking mechanism downward, and a loading open gear 13 to open the tray 6 by being engaged with the rack 7, are arranged at divided-into-five positions in the circumferential direction in the device body, one planetary gear 3, which is engaged with the driving gear 2 arranged at the central part and intermittently and successively engaged with the various gears, is arranged, a pedestal 1 which is a circular shape in a plan view, which has five radial step parts provided at the divided- into-five positions in the circumferential direction and five taper upper faces continuous to the step parts, is arranged on the lower side on the track of the planetary gear 3, and a sliding member 14A which slides on the tapered upper faces of the pedestal 1 is provided at the lower part of the planetary gear 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention uses a single planetary gear to rotate from a drive gear, and the planetary gear moves and rotates five various gears arranged on the movement track of the planetary gear. The present invention relates to a disk device that can be rotationally driven by a gear at any movement locus position.

[0002]

2. Description of the Related Art Conventionally, as one having a structure in which one drive gear is rotated to rotate a plurality of transmission gears by using a planetary gear, for example, JP-A-5-246 is known.
There is a sheet separating and conveying device described in Japanese Patent No. 561. This is shown in FIG. 7 (a) (b), FIG. 8 (a) (b), and FIG.
As shown in (a) and (b), a paper feed roller 117 facing the paper path 113 communicating with the paper storage unit 112 and selectively driven in both forward and reverse directions by a rotation driving means, and a contact / separation driving means. Auxiliary rollers 121 and 122, which are movably arranged in a direction in which they can be brought into contact with and separated from the paper feed roller 117 and convey the paper together with the paper feed roller 117, and the rotation drive means and the contact and separation drive means are driven to separate and convey the paper. And a control means for controlling so that the paper feed roller 1
By rotating 17 in both forward and reverse directions, the sheets are separated and only one sheet is conveyed.

However, in this case, two planetary gears 133 and 134 of the rotary driving means are required, and one idler gear 135 is rotated by one planetary gear 133 to rotate a plurality of idler gears. Was not. Further, in a conventional drive device using a gear, it is general that only one drive gear rotationally drives a transmission gear using a planetary gear, and since each drive system is arranged separately, There is a problem that a plurality of drive motors are required to rotate each drive gear, and the number of drive motors used is large, resulting in high cost.

[0004]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems of the prior art and uses five planetary gears in one drive gear rotated by a drive motor, that is, five various gears, that is, rotary tray rotation gears. , The loading close gear, the chucking gear, the unchucking gear, and the loading open gear can be rotationally driven, respectively, and one drive gear and one planetary gear can drive five mechanical parts. It is an object of the present invention to provide a disk device that can reduce the number of motors used to drive a drive gear and can reduce the cost.

[0005]

SUMMARY OF THE INVENTION The present invention has been proposed to solve the above problems, and the invention according to claim 1 is one in which the rotary is provided at five divided positions in the circumferential direction in the apparatus main body. Tray rotating gear, loading closing gear for closing the tray by meshing with the rack provided on one side of the tray, chucking gear for moving the chucking mechanism upward, and chucking mechanism for downward An unchucking gear for moving to, and a loading open gear for meshing with a rack provided on the other side of the tray to open the tray,
A drive gear is arranged in the center of the planetary gear, and one planetary gear that meshes with the drive gear and intermittently meshes with the above-mentioned various gears is arranged. A pedestal having a substantially circular shape in plan view having five radial step portions provided at five divided positions and five tapered upper surfaces connected to these step portions at predetermined intervals is arranged, and is located below the planetary gear. Is provided with a sliding member capable of sliding on the taper upper surface of the pedestal, and the planetary gear meshing with the drive gear is moved to an appropriate position of the various gears by forward rotation of the drive gear to move the planetary gear. The sliding member at the bottom of the gear is arranged at a step position at an appropriate position on the pedestal, and the drive gear is counter-rotated to lock and fix the planetary gear at the step position at an appropriate position. Rotate planet gears With the configuration, the various gears meshing with the planetary gear are rotationally driven, an intermediate gear is interposed between the unchucking gear and the planetary gear, and the sliding member under the planetary gear is ,
It is characterized by comprising a bracket having a tapered lower surface having an inclination angle corresponding to the inclination angle of the tapered upper surface of the pedestal.

According to a second aspect of the present invention, a rotary tray rotating gear and a loading closing gear for engaging with a rack provided on one side of the tray to close the tray in the circumferential direction inside the apparatus body, A chucking gear for moving the chucking mechanism upward, an unchucking gear for moving the chucking mechanism downward, and a rack for engaging the rack provided on the other side of the tray to open the tray. A loading opening gear is arranged, a drive gear is arranged at the center thereof, and one planetary gear that meshes with the drive gear and intermittently sequentially meshes with the various gears is arranged. The orbit of the planetary gear A generally circular plan view having, on the lower side of the top, five radial step portions in the circumferential direction and five tapered upper surfaces that are continuous with these step portions at predetermined intervals. A pedestal is disposed, and a sliding member capable of sliding on a tapered upper surface of the pedestal is provided below the planet gear, and the planet gear meshed with the drive gear is appropriately rotated by forward rotation of the drive gear. Move to the position of the various gears of the place, arrange the sliding member under the planetary gear at the stepped position of the appropriate position of the pedestal, and rotate the drive gear counterclockwise to move the step of the appropriate position. It is characterized in that the planetary gear is locked and fixed at the position, and the planetary gear is further rotated to rotationally drive the various gears meshing with the planetary gear.

According to a third aspect of the present invention, an expansion spring is disposed on the upper surface of the sliding member below the planetary gear, and the sliding member is connected to the lower part of the planetary gear via the expansion spring. When the sliding member slides on the tapered upper surface of the pedestal, the expansion and contraction spring absorbs the height of the tapered upper surface of the pedestal so that the planetary gear is always held at a constant height position. It is characterized by being configured. The invention according to claim 4 is characterized in that the sliding member is constituted by a roller rotatably slidably attached to a lower end of a support leg projecting downward from a lower surface of the planetary gear.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a disk device according to the present invention will be described below with reference to the drawings. Figure 1
Is a schematic plan view showing the structure of the disk device of the embodiment of the present invention, FIG. 2 is a perspective view of a pedestal used for the disk device of the embodiment, FIG. 3 is a developed view of the pedestal used for the disk device of the embodiment, and FIG. FIG. 5 is a development view of a pedestal showing another example of the planet gears in the disk device of the embodiment, FIG. 5 is a development view showing another example of the pedestal used in the disk device of the embodiment, and FIG. 6 is a view of the planet gears used in the disk device of the embodiment. It is a development view of a pedestal showing another example.

As shown in FIG. 2, the drive device of the present embodiment has five radial step portions 1a, 1b, which are located at five divided positions in the circumferential direction of the annular portion provided on the outer peripheral portion.
1c, 1d, 1e and their steps 1a, 1b, 1c, 1
5 taper upper surfaces 1f, 1 of appropriate width connected to d, 1e
pedestal 1 having a substantially circular shape in plan view having g, 1h, 1i, and 1j
As shown in FIG. 1, one drive gear 2 is arranged at the center of the. This drive gear 2 is, as shown in FIG.
It is adapted to be rotated by a drive motor (not shown) having a drive shaft inserted in a tubular portion 1z provided at the center of the.
Further, one planetary gear 3 that meshes with the drive gear 2 is arranged on the upper surface side of the pedestal 1 in a state of being supported by a plate-shaped connecting member 4.

A rotary tray rotation gear 5 capable of meshing with the planetary gear 3 is provided at a position near the outer peripheral edge of the pedestal 1 and at five divided positions on the orbit of the planetary gear 3.
Loading closing gear 8 for closing the tray 6 by meshing with a rack 7 provided on one side of the tray 6.
A chucking gear 9 for moving a chucking mechanism (not shown) upward, an intermediate gear 11 meshing with an unchucking gear 10 for moving the chucking mechanism downward, and the other of the trays 6. A rack 12 provided on the side and a loading opening gear 13 for meshing with the rack 12 to open the tray 6 are arranged. Further, as shown in FIG. 3, a sliding member 14A capable of sliding on the tapered upper surfaces 1f, 1g, 1h, 1i, 1j of the pedestal 1 is provided below the planetary gear 3. This sliding member 14A is
It is composed of a bracket having a tapered lower surface 14a having an inclination angle corresponding to the inclination angles of the tapered upper surfaces 1f, 1g, 1h, 1i, 1j of the pedestal 1.

Then, a planetary gear 3 meshing with the drive gear 2
By the positive rotation of the drive gear 2, five various gears 5, 8, 9, 1
Move to either position 1 or 13 to move the planetary gear 3
The lower sliding member 14A is arranged at the position of any one of the stepped portions 1a, 1b, 1c, 1d, 1e of the pedestal 1 and the drive gear 2 is rotated in the opposite direction to move the planetary gear 3 to any one step. By locking and fixing the positions of the parts 1a, 1b, 1c, 1d, 1e, and further rotating the planetary gear 3, any one gear 5, which meshes with the planetary gear 3,
It is arranged such that 8, 9, 11, and 13 are rotationally driven.

That is, when the planetary gear 3 meshes with the rotary tray rotation gear 5, the rotation of the rotary tray rotation gear 5 rotates the rotary tray (not shown),
When the planetary gear 3 meshes with the loading close gear 8, the rotation of the loading close gear 8 moves the rack 7 in the direction of closing the tray 6 to close the tray 6, and the planetary gear 3 becomes the chucking gear 9. When they mesh,
The rotation of the chucking gear 9 moves the chucking mechanism upward, and when the planetary gear 3 meshes with the intermediate gear 11, the rotation of the intermediate gear 11 causes the unchucking gear 10 to reverse the chucking gear 9. When the planetary gear 3 meshes with the loading opening gear 13, the loading opening gear 13 is rotated to rotate the chucking mechanism downward so that the rack 12 is rotated.
Moves in the direction to open the tray 6 so that the tray 6 can be opened.

Therefore, according to the disk device of the present embodiment, one drive gear 2 rotated by the drive motor, one planetary gear 3 and five various gears, that is, the rotary tray rotation gear 5 and the loading are used. Closing gear 8,
Since the intermediate gear 11 and the loading open gear 13 can be individually driven to rotate, the number of motors used to drive the drive gear 2 can be reduced, and the cost can be reduced.

In another example of the planetary gear 3 shown in FIG. 4, an expanding / contracting spring 15 is arranged on the upper surface of a sliding member 14B below the sliding member 14B, and the sliding member 14B is located below the planetary gear 3 via the expanding / contracting spring 15. It has a continuous structure. Then, the tapered upper surfaces 1f, 1g, 1h, 1i, 1j of the pedestal 1 are attached to the sliding member 14
When B slides, the tapered upper surfaces 1f, 1g of the pedestal 1,
The heights of 1h, 1i, and 1j are absorbed by the elastic spring 15 so that the planetary gear 3 is always held at a constant height position. Therefore, according to this, the planetary gear 3
Can always be maintained at a constant height position, so that the meshing between the planetary gear 3 and the drive gear 2 and the meshing between the planetary gear 3 and the various gears 5, 8, 9, 11, 13 should be maintained in a good state. Therefore, the rotation transmission of each gear can be ensured.

The pedestal 1 shown in FIG. 5 has a tapered upper surface 1
f, 1g, 1h, 1i, 1j are steps 1a, 1b, 1c,
The taper upper surfaces 1f, 1g, 1h, 1i, 1j are provided only in the vicinity of 1d, 1e, and the base end portion and the step portion 1 are provided.
Between the lowermost portions of a, 1b, 1c, 1d, and 1e, horizontal planes 1k, 1m, 1n, 1p, and 1q are formed. According to this, the horizontal planes 1k, 1m, 1 of the pedestal 1
There is an advantage that the sliding member 14A of the planetary gear 3 can smoothly slide on n, 1p, and 1q without resistance.

In the planetary gear 3 shown in FIG. 6, a sliding member 14C made of a roller capable of rotating and sliding is attached to the lower end of a supporting leg 3a which projects downward from the lower surface thereof. According to this, since the sliding member 14C composed of rollers can slide the tapered upper surfaces 1f, 1g, 1h, 1i, 1j of the pedestal 1, the resistance during sliding can be reduced and the planetary gear 3 The gliding movement can be made even smoother.

[0017]

As described above, according to the first aspect of the present invention, the rotary tray rotation gear and the rack provided on one side of the tray mesh with each other at five circumferentially divided positions in the apparatus body. Loading closing gear to close the tray, the chucking gear to move the chucking mechanism upward, the unchucking gear to move the chucking mechanism downward, and the other side of the tray. A loading open gear for meshing with the provided rack to open the tray is arranged, and a drive gear is arranged at the center of the rack to mesh with the drive gear and intermittently sequentially mesh with the various gears. Gears are arranged, on the lower side of the orbit of the planetary gear,
A pedestal having a substantially circular shape in plan view, which has five radial steps provided at five divided positions in the circumferential direction and five tapered upper surfaces connected to these steps at predetermined intervals, is arranged. In the lower part, a sliding member that can slide on the tapered upper surface of the pedestal is provided, and the planetary gear that meshes with the drive gear is moved to various gear positions at appropriate places by forward rotation of the drive gear. The lower sliding member is arranged at a step position at an appropriate position on the pedestal, and the planetary gear is locked and fixed at the step position at an appropriate position by rotating the drive gear counterclockwise.
Further, by rotating the planetary gear, various gears meshing with the planetary gear are rotationally driven, and an intermediate gear is interposed between the unchucking gear and the planetary gear. Since the sliding member is composed of a bracket having a tapered lower surface having an inclination angle corresponding to the inclination angle of the tapered upper surface of the pedestal, the sliding member has the following effects.

That is, one planetary gear is used by one drive gear rotated by the drive motor, and five kinds of gears are used, namely, a rotary tray rotating gear, a loading closing gear, a chucking gear, and an unchucking gear. The meshing gear intermediate gear and the loading open gear can be driven to rotate respectively, and one drive gear and one planetary gear can drive five mechanical parts.
It is possible to reduce the number of motors used to drive the drive gears and reduce costs. Further, since the sliding member under the planetary gear is composed of a bracket having a taper lower surface having an inclination angle corresponding to the inclination angle of the taper upper surface of the pedestal, while holding the planetary gear with the sliding member composed of this bracket. The planetary gear can be smoothly and reliably slid on the tapered upper surface of the pedestal.

According to a second aspect of the present invention, a rotary tray rotating gear and a loading closing gear for engaging with a rack provided on one side of the tray to close the tray in the circumferential direction in the apparatus body, A chucking gear for moving the chucking mechanism upward, an unchucking gear for moving the chucking mechanism downward, and a rack for engaging the rack provided on the other side of the tray to open the tray. A loading open gear is arranged, a drive gear is arranged at the center of the gear, and one planetary gear that meshes with the drive gear and intermittently sequentially meshes with the above various gears is arranged on the orbit of the planetary gear. On the lower side, there is a substantially circular plan view having five radial step portions in the circumferential direction and five tapered upper surfaces that are continuous with these step portions at predetermined intervals. A seat is arranged, and a sliding member capable of sliding on the tapered upper surface of the pedestal is provided under the planetary gear, and the planetary gear that meshes with the drive gear is connected to the various gears at appropriate positions by forward rotation of the drive gear. Move to the position, place the sliding member under the planetary gear at the stepped position at the appropriate place on the pedestal, and rotate the drive gear counterclockwise to lock the planetary gear at the stepped position at the appropriate place. By fixing and further rotating this planetary gear, various gears meshing with this planetary gear are rotationally driven.
The following effects are achieved.

That is, one planetary gear is used by one drive gear rotated by the drive motor, and five kinds of gears are used, that is, a rotary tray rotating gear, a loading closing gear, a chucking gear, and an unchucking gear. , The loading open gears can be driven to rotate respectively, and one drive gear and one planetary gear can drive five mechanical parts, which can reduce the number of motors used to drive the drive gears. The cost can be reduced.

According to a third aspect of the invention, an expansion spring is arranged on the upper surface of the sliding member below the planetary gear, and the sliding member is connected to the lower part of the planetary gear via the expansion spring. When the sliding member slides on the tapered upper surface of the pedestal, the expansion / contraction spring absorbs the height of the tapered upper surface of the pedestal so that the planetary gear is always held at a constant height position. Since it can always be held at a constant height position, the meshing between the planetary gear and the drive gear and the planetary gear and various gears, that is, the rotary tray rotation gear,
The meshing with the loading close gear, the chucking gear, the unchucking gear, and the loading open gear can be maintained in a good state, and the rotation transmission of each gear can be ensured.

According to a fourth aspect of the present invention, the sliding member is composed of a roller which is rotatably slidably attached to the lower end of the supporting leg which is provided so as to project downward from the lower surface of the planetary gear. Since the sliding member can slide the tapered upper surface of the pedestal, the resistance during sliding can be reduced, and the sliding movement of the planetary gears can be made even smoother.

[Brief description of drawings]

FIG. 1 is a schematic plan view showing a structure of a disk device according to an embodiment.

FIG. 2 is a perspective view of a pedestal used in the disk device of the embodiment.

FIG. 3 is a development view of a pedestal used in the disk device of the embodiment.

FIG. 4 is a development view of a pedestal showing another example of the planetary gears in the disk device of the embodiment.

FIG. 5 is a development view showing another example of the pedestal used in the disk device of the embodiment.

FIG. 6 is a development view of a pedestal showing still another example of a planetary gear used in the disk device of the embodiment.

7A and 7B are schematic side views of a conventional sheet separating and conveying device in a sheet separating state.

8A and 8B are schematic side views of a conventional sheet separating and conveying apparatus in a sheet conveying state.

9A and 9B are views of a conventional sheet separating and conveying device.
It is a schematic side view of the paper conveyance state after (a) and (b).

[Explanation of symbols]

1 pedestal Steps 1a, 1b, 1c, 1d, 1e 1f, 1g, 1h, 1i, 1j Tapered upper surface 1k, 1m, 1n, 1p, 1q horizontal plane 1z tubular part 2 drive gear 3 planetary gears 3a Support leg 4 connecting members 5 Rotary tray rotation gear 6 trays 7 racks 8 Loading close gear 9 Chucking gear 10 Unchucking gear 11 Intermediate gear 12 racks 13 Loading open gear 14A sliding member 14a Taper bottom surface 14B Sliding member 14C sliding member 15 telescopic spring

Claims (4)

[Claims] 1. A rotary tray rotation gear, five loading tray closing gears for engaging with a rack provided on one side of the tray to close the tray, and chucking mechanism at five circumferentially divided positions in the apparatus body. A chucking gear for moving the chuck upward, and an unchucking gear for moving the chucking mechanism downward,
A rack provided on the other side of the tray is provided with a loading open gear that meshes with the rack to open the tray, and a drive gear is provided at the center of the rack to mesh with the drive gear and intermittently engage with the various gears described above. 1 that meshes sequentially
Five planetary gears are arranged, and on the lower side of the orbit of the planetary gears, there are five radial stepped portions provided at five divided positions in the circumferential direction and five radial stepped portions connected to these stepped portions at predetermined intervals. A pedestal having a tapered upper surface and having a substantially circular shape in a plan view is arranged, and a sliding member capable of sliding on the tapered upper surface of the pedestal is provided at a lower portion of the planetary gear, and the planetary gear that meshes with the drive gear. By rotating the drive gear to the appropriate positions of the various gears by the normal rotation of the drive gear, disposing the sliding member under the planetary gear at the appropriate step position of the pedestal, and rotating the drive gear counterclockwise. The planetary gear is locked and fixed at a suitable step position by rotating the planetary gear, and the planetary gear is further rotated to rotationally drive the various gears meshing with the planetary gear. Between the use gear and the planetary gear intermediate gear is interposed, the lower portion of the sliding member of the planetary gear,
A disk device comprising a bracket having a tapered lower surface having an inclination angle corresponding to the inclination angle of the tapered upper surface of the pedestal. 2. A rotary tray rotating gear, a loading closing gear for engaging with a rack provided on one side of the tray to close the tray, and a chucking mechanism are moved upward in the circumferential direction inside the apparatus main body. A chucking gear for moving the chucking mechanism, an unchucking gear for moving the chucking mechanism downward, and a loading open gear for engaging the rack provided on the other side of the tray to open the tray. A drive gear is arranged at the center of the planetary gear, and one planetary gear that meshes with the drive gear and intermittently meshes with the various gears is arranged. A pedestal having a substantially circular shape in plan view, which has five radial steps in the circumferential direction and five tapered upper surfaces connected to these steps at predetermined intervals, is arranged. The lower part of the planetary gear is provided with a sliding member capable of sliding on the tapered upper surface of the pedestal, and the planetary gear meshing with the drive gear is moved to the position of the various gears at appropriate positions by forward rotation of the drive gear. Go to
The sliding member at the bottom of the planetary gear is arranged at a stepped position at an appropriate position of the pedestal, and the drive gear is rotated counterclockwise to lock and fix the planetary gear at a stepped position at an appropriate position, By further rotating this planetary gear,
A disk device characterized in that the various gears meshing with the planetary gear are rotationally driven. 3. A structure in which an expansion spring is disposed on an upper surface of a sliding member below the planetary gear, and the sliding member is connected to the lower part of the planetary gear via the expansion / contraction spring, and the base is tapered. When the sliding member slides on the upper surface, the expansion and contraction spring absorbs the height of the tapered upper surface of the pedestal so that the planetary gear is always held at a constant height position. The disk device according to claim 2. 4. The sliding member is constituted by a roller rotatably slidably attached to a lower end of a support leg projecting downward from a lower surface of the planetary gear. Disk device.