JP2002230876A - Feed roller supporting mechanism for disk conveyor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a feed roller supporting mechanism for a disk conveyor which facilitates mounting of a bracket with feed roller. SOLUTION: The feed roller 9 has a gear section 20 which is connected to one end of a roller surface 19 and receives rotating force. Shafts at both ends are inserted into long holes 14 of a bracket 10 from the inner side of right and left side plate 11. The moving quantity in the axial direction of the feed roller 9 with respect to the bracket 10 is limited by springs 17 for energizing the feed roller 9 toward a receiving member 8, by which the disengagement of the feed roller 9 from the bracket 10 is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a feed roller that is rotatably supported by a bracket, and a disk is held between the feed roller and a receiving member by the elastic force of a spring inserted between the feed roller and the bracket. The present invention relates to a feed roller support mechanism of a disk transport device that transports a disk by rotating a feed roller.

[0002]

2. Description of the Related Art Most disk reproducing apparatuses include a disk transfer device for transferring a disk from a disk insertion slot toward a turntable. Some disk transport devices transport the disk by rotating the feed roller while nipping the disk between a feed roller and a receiving member. In general, this type of disk transport device supports the feed roller with a bracket. When the bracket is rotated, the feed roller is attached to or separated from the receiving member.

As a feed roller supporting mechanism for supporting a feed roller on a bracket, a feed roller supporting mechanism disclosed in Japanese Patent Publication No. 6-9096 is known. This is, as shown in FIG. 9, a shaft 32 protruding from both ends of the feed roller 31.
A long hole 35 provided in the left and right side plates 34 of the bracket 33.
Into the bracket 33 on the outer surface of the left and right side plates 34.
A spring 36 is interposed between the feed roller 31 and the shaft portion 32, and the feed roller 31 is urged toward the receiving member 37 by the elastic force of the spring 36.

[0004]

In the configuration disclosed in Japanese Patent Publication No. Hei 6-9096, if the gap between the roller portion of the feed roller 31 and the left and right side plates 34 of the bracket 33 is large, the feed roller 31 will not move. Since the disc cannot be transported straight by moving in the axial direction, reduce the above gap or
It is necessary to attach a movement restricting member for restricting axial movement to the left and right shaft portions 32.

However, when the gap is reduced, when the feed roller 31 is mounted on the bracket 33, the roller portion of the feed roller 31 and the shaft portion 32 are separated, and the shaft portion is first placed in a state where the roller portion is located between the left and right plates. The part 32 must be inserted into the center hole of the roller part, and it becomes difficult to insert the long shaft part 32 into the center hole of the roller part.

When the movement restricting member is used, the gap between the roller and the left and right side plates 34 can be increased.
In a state where the roller portion and the shaft portion 32 are integrated, the two shaft portions 32
Can be inserted one by one into the long hole 35 of the bracket 33 from the inside of the side plate 34. However, in this case, two movement restricting members are required, and a mounting groove for mounting the movement restricting member must be provided in the shaft portion 32, and a work process for mounting the movement restricting member on the shaft portion 32 is also required. There is an increasing problem.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and an object of the present invention is to provide a feeder for a disk transport apparatus which can easily mount a feed roller to a bracket, has a reduced number of parts, and can be simplified in construction. It is to provide a roller support mechanism.

[0008]

According to the present invention, a feed roller supporting mechanism of a disk transfer device is provided with a gear portion for receiving a rotational force continuously at one end of a roller surface of a feed roller, and a shaft portion at both ends is attached to a bracket by a bracket. Insert from the inside of the left and right side plate into the long hole,
The feed roller is configured to limit the axial movement amount of the feed roller with respect to the bracket by a spring that urges the feed roller toward the receiving member.

If the springs are separately provided between the left and right side plates of the bracket and both ends of the feed roller, the feed roller can be supported by the bracket with good left-right balance.

Further, when a collar is attached to the outer periphery of the shaft portion of the feed roller, the collar is inserted into the long hole of the bracket, and the spring is inserted between the collar and the bracket. Since the spring does not directly contact the shaft, noise due to contact between the spring and the shaft can be prevented, and the mounted state of the spring can be kept stable.

If an annular groove is provided in the center of the feed roller and one end of the spring is interposed in this groove, one spring is sufficient.

[0012]

FIG. 1 is a perspective view showing an internal mechanism of a reproducing apparatus 1. The reproducing apparatus 1 has a configuration in which a reproducing substrate 4 is supported in a floating state inside a chassis 2 via a damper 3. A pickup substrate and a turntable (both not shown), a clamper support plate 6 for supporting a clamper 5, and a disk transfer device 7 are also attached to the reproduction substrate 4.

The disk transfer device 7 has a receiving member 8 attached to the upper surface of the reproduction substrate 4 and a feed roller 9 arranged on the lower surface of the receiving member 8.

The feed roller 9 is supported on a bracket 10 made of a metal plate as shown in FIG. That is, the left and right side plates 11 of the bracket 10
Has a through hole 12 at each central portion, and each through hole 12
The bracket 10 is fitted to pivots (not shown) projecting from the inner surfaces of the left and right side plates of the reproduction substrate 4, and the bracket 10 is rotatably mounted on the reproduction substrate 4. A U-shaped cut 13 is formed around one of the through holes 12 so that the bracket 1
0 is easily attached to the reproduction substrate 4.

The left and right side plates 11 of the bracket 10 each have a vertically long hole 14 at each front end, and the lower edges of each front end are connected by a connection plate 15. A U-shaped spring (for example, a bar spring) 17 is interposed between the connecting plate 15 and the shaft portions 16 (see FIGS. 3 to 5) protruding from both ends of the feed roller 9. The two springs 17 constitute a feed roller support mechanism 18.

The feed roller 9 is formed by passing a metal shaft through a synthetic rubber roller. The feed roller 9 has a gear portion 20 made of synthetic resin at one end of a roller surface 19 and the shaft portion 16 at both ends. Is projected. The roller surface 19 is a tapered surface having a smaller diameter from both ends toward the center.

The feed roller 9 thus formed is attached to the bracket 10 in the order shown in FIGS. That is, first, one shaft portion 16 is inserted into the long hole 14 of the bracket 10 from the inside of the side plate 11 as shown in FIG. 3, and then the other shaft portion 16 is inserted into the other long hole 14 of the bracket 10 as shown in FIG. From the inside of the side plate 11. Thereafter, as shown in FIG. 5, the spring 17 is inserted between the connecting plate 15 of the bracket 10 and the two shaft portions 16 to complete the attachment of the feed roller 9 to the bracket 10.

In this state, the spring 17 is interposed between the end surface of the roller portion of the feed roller 9 and the inner surface of the side plate 11 of the bracket 10. By limiting the amount of movement of the feed roller 9 in the axial direction by the two springs 17, the shaft portion 16 is prevented from coming out of the elongated hole 14.

The elastic force of the spring 17 causes
The feed roller 9 is urged toward the receiving member 8, the disk 23 is held between the feed roller 9 and the receiving member 8, and the disk is conveyed by the rotation of the feed roller 9.

As shown in FIG. 6, the total length of the feed roller 9 is
That is, by setting the distance between both ends of the shaft portion 16 to be substantially equal to the distance between the outer surfaces of the left and right side plates 11 of the bracket 10,
The shaft portion 16 does not protrude significantly from the outer surface of the side plate 11. When the feed roller support mechanism 18 is attached to the reproduction substrate 4, the gear portion 20 of the feed roller 9 meshes with a drive gear (not shown), and the feed roller 9 is driven to rotate.

As described above, the shaft portions 16 at both ends of the feed roller 9 are inserted into the long holes 14 of the bracket 10 from inside the left and right side plates 11, and the feed roller 9 is biased toward the receiving member 8 by the spring 17. By limiting the axial movement of the feed roller 9 with respect to the bracket 10 so that the feed roller 9 does not come off from the bracket 10, the movement restriction for limiting the axial movement of the feed roller 9 with respect to the bracket 10. Parts such as members are not particularly required. Therefore, the feed roller 9 with respect to the bracket 10
Can be easily mounted, and can be simply configured with a small number of parts.

The springs 17 are separately arranged between the left and right side plates 11 of the bracket 10 and both ends of the feed roller 9, so that the feed roller 9 is
Can be supported with good left-right balance.

FIG. 7 shows another embodiment of the present invention, in which a collar 21 made of a synthetic resin is attached to the shaft 16 of the feed roller 9.
The collar 21 is attached to the slot 14 of the bracket 10.
, And a spring 17 is interposed between the collar 21 and the bracket 10. Although only one side of the collar 21 is shown in FIG. 7, the same configuration is provided at both ends of the feed roller 9. The collar 21 has a flange 22, and a spring 17 is provided between the flange 22 and the bracket 10.
Shall be located at one end.

Since the collar 21 receives the contact resistance between the bracket 10 and the spring 17, the collar 21 is rotated even when the feed roller 9 rotates and the disk 23 is conveyed.
Does not rotate, and functions as a bearing for the shaft portion 16. Since the spring 17 does not directly contact the shaft 16, noise due to contact between the spring and the shaft can be prevented, and the mounted state of the spring 17 can be kept stable. In this embodiment, when the outer shape of the collar 21 is formed in a prismatic shape, an effect of reliably preventing the rotation of the collar 21 is obtained.

FIG. 8 shows still another embodiment, in which an annular groove 25 is provided in the center of a feed roller 24,
One end of a spring (for example, a leaf spring) 26 is interposed therebetween, and the other end of the spring 26 is fixed to the bracket 10 so as to limit the amount of movement of the feed roller 24 relative to the bracket 10 in the axial direction. . In this embodiment, one spring 26 is sufficient, and the configuration is further simplified.

[0026]

As described above, according to the present invention, the shaft portions 1 are provided at both ends.
6 is rotatably supported by the bracket 10 by inserting the shaft portions at both ends into long holes 14 provided in the left and right side plates 11 of the bracket 10. And a feed roller supporting mechanism of a disk transfer device for holding the disk 23 between the feed roller 9 and the receiving member 8 by the elastic force of a spring 17 interposed therebetween and transferring the disk by rotation of the feed roller 9. , The feed roller 9 has a roller surface 19.
Has a gear portion 20 that receives a rotational force. Then, the shaft portions 16 at both ends are connected to the long holes 1 of the bracket 10.
4 from the inside of the left and right side plates 11, and the feed roller 9 for the bracket 10 is
Of the feed roller 9 from the bracket 10 to prevent the feed roller 9 from coming off from the bracket 10.

Accordingly, the feed roller 9 can be mounted on the bracket 10 in a state where the roller portion and the shaft 16 are integrated, and the mounting operation can be easily performed. Further, since the feed roller 9 is prevented from coming off from the bracket 10 by the spring 17, the number of parts is small and the configuration is simplified.

In particular, the left and right side plates 11 of the bracket 10
When one end of a separate spring 17 is interposed between the feed roller 9 and both ends of the feed roller 9 to limit the amount of axial movement of the feed roller 9 with respect to the bracket 10, the feed roller 9 can be supported on the bracket 10 with good left-right balance.

When the collar 21 is mounted on the outer periphery of the shaft portion 16 and the collar 21 is inserted into the elongated hole 14, and the spring 17 is inserted between the collar 21 and the bracket 10, the spring Since the shaft 17 and the shaft 16 do not directly contact each other, noise due to the contact between the spring 17 and the shaft 16 can be prevented, and the mounted state of the spring 17 can be kept stable.

Further, an annular groove 25 is provided at the center of the feed roller 9, one end of a spring 26 is interposed in the groove 25, and the other end of the spring 26 is fixed to the bracket 10, and the feed to the bracket 10 is performed. If the amount of movement of the roller 9 in the axial direction is limited, one spring 26 is sufficient, and the configuration can be further simplified.

[Brief description of the drawings]

FIG. 1 is an exemplary perspective view showing an internal mechanism of a playback device according to an embodiment of the present invention;

FIG. 2 is a perspective view showing a feed roller support mechanism.

FIG. 3 is a front view partially showing a process of attaching a feed roller to a bracket.

FIG. 4 is a front view showing, in partial cross section, a process of attaching a feed roller to a bracket.

FIG. 5 is a front view showing, in partial cross section, a process of attaching a feed roller to a bracket.

FIG. 6 is a front view showing a dimensional relationship between a feed roller and a bracket.

FIG. 7 is a front view showing a feed roller supporting mechanism according to another embodiment of the present invention in a partial cross section.

FIG. 8 is a perspective view showing a feed roller support mechanism according to still another embodiment of the present invention.

FIG. 9 is an exploded perspective view showing a conventional feed roller support mechanism.

[Explanation of symbols]

 Reference Signs List 8 receiving member 9, 24 feed roller 10 bracket 11 left right side plate 14 long hole 16 shaft portion 17, 26 spring 19 roller surface 20 gear portion 23 disk 25 annular groove

Claims (4)

[Claims] 1. A feed roller (9) having shaft portions (16) protruding at both ends is inserted into long holes (14) provided on left and right side plates (11) of a bracket (10). And the disc (23) is held between the feed roller and the receiving member (8) by the elastic force of a spring (17) inserted between the feed roller and the bracket. In a disk transport device for transporting a disk by rotation of a feed roller, the feed roller has a gear portion (20) for receiving a rotational force continuously at one end of a roller surface (19), and a shaft portion at both ends is bracketed. The feed roller is inserted into the long hole from the inside of the left and right side plates, and the spring limits the amount of movement of the feed roller in the axial direction with respect to the bracket, thereby preventing the feed roller from coming off the bracket. A feed roller support mechanism for a disk transport device. 2. An end portion of a separate spring (17) is interposed between the left and right side plates of the bracket and both end portions of the feed roller to limit the amount of axial movement of the feed roller relative to the bracket. 2. A feed roller support mechanism for a disk transport device according to claim 1, wherein: 3. A collar (21) is mounted on an outer periphery of said shaft portion, said collar is inserted into said elongated hole, and said spring is inserted between said collar and said bracket. Item 3. A feed roller support mechanism of the disk transfer device according to Item 2. 4. An annular groove (25) is provided at the center of the feed roller (24), one end of a spring (26) is interposed in this groove, and the other end of the spring is fixed to the bracket. 2. The feed roller support mechanism of a disk transport device according to claim 1, wherein the amount of movement of the feed roller in the axial direction with respect to the distance is limited.