U.S. patent application number 12/633337 was filed with the patent office on 2010-05-13 for disk-chucking device.
This patent application is currently assigned to Valley Wood Electrical (Shen Zhen) Co., Ltd.. Invention is credited to Yungta Chen.
Application Number | 20100118446 12/633337 |
Document ID | / |
Family ID | 35931344 |
Filed Date | 2010-05-13 |
United States Patent
Application |
20100118446 |
Kind Code |
A1 |
Chen; Yungta |
May 13, 2010 |
DISK-CHUCKING DEVICE
Abstract
A disk-chucking device comprises a pressing member including a
circular groove which is provided around a circumference of the
clamp member, and a clamping member mounted on a turning plate for
clasping the circular groove of the pressing member. The turning
plate provides a through hole at the center thereof which allows
the pressing member passing through, and a plurality of first notch
portions disposed along the circumference of the through hole. The
turning plate is slidably connected to a mounting board through the
clamping member. The turning plate can rotate with respect to the
mounting board to move the pressing member vertically. Thus, the
pressing member can be pressed onto and removed from a disk support
of the displayer according to the rotation of the turning plate.
The present disk-chucking device can chuck the disk securely
regardless of the position of the disk player.
Inventors: |
Chen; Yungta; (Shenzhen
City, CN) |
Correspondence
Address: |
Husch Blackwell Sanders, LLP;Husch Blackwell Sanders LLP Welsh & Katz
120 S RIVERSIDE PLAZA, 22ND FLOOR
CHICAGO
IL
60606
US
|
Assignee: |
Valley Wood Electrical (Shen Zhen)
Co., Ltd.
Shenzhen City
CN
|
Family ID: |
35931344 |
Appl. No.: |
12/633337 |
Filed: |
December 8, 2009 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
11377880 |
Mar 16, 2006 |
7669211 |
|
|
12633337 |
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Current U.S.
Class: |
360/254 ;
G9B/5.181 |
Current CPC
Class: |
G11B 17/0565 20130101;
G11B 17/05 20130101 |
Class at
Publication: |
360/254 ;
G9B/5.181 |
International
Class: |
G11B 5/54 20060101
G11B005/54 |
Foreign Application Data
Date |
Code |
Application Number |
Mar 17, 2005 |
CN |
200510033720.9 |
Claims
1. A disk-chucking device used for a disk player, comprising: a
pressing member providing a first through hole at the center
thereof and a circular groove at the side thereof; a turning plate
having a rear portion mounted on a mounting board; and two clamping
members engaged with each other being connected to the turning
plate, each of the two clamping members providing a clip to
removably clamp the circular groove of the pressing member, wherein
the turning plate can rotate with respect to the rear portion of
the turning plate, which further moves the clips of the clamping
members vertically, so that the pressing member clasped by the
clips can be pressed onto and removed from a disk support of the
displayer.
2. The device of claim 1, wherein the turning plate further
comprises a first connecting member and a second connecting member
on a side portion thereof through which the turning plate is
engaged to a swivel plate of the disk player; so that the turning
plate can be turned by controlling a rotation of the swivel
plate.
3. The device of claim 1, wherein the disk-chucking device further
comprises an elastic member connected to the two clamping
members.
4. The device of claim 2, wherein a third connecting member is
provided on one of the clamping members, and when the swivel plate
rotates to a place, the connecting member is barred by the swivel
plate so that the clips of the clamping members can be rotated
outwards according to the engagement therebetween, thereby
releasing the pressing member onto the disk support.
5. The device of claim 1, wherein magnets are disposed in the
pressing member and the disk support respectively, so that the disk
can be secured on the disk support according to a magnetic force
between the magnets.
Description
CROSS REFERENCE OF RELATED APPLICATIONS
[0001] This application claims the benefit of Chinese patent
application No. 200510033720.9 filed Mar. 17, 2005 which is
explicitly incorporated by reference in its entity. This
application is a divisional of U.S. application Ser. No. 11/377,880
filed Mar. 16, 2006.
TECHNICAL FIELD OF THE INVENTION
[0002] The present invention relates to a disk-chucking device, and
more particular, to a disk-chucking device comprising a pressing
member having a circular groove provided around a circumference of
the pressing member in the height direction thereof, and a clamping
member which can removably clamp the circular groove of the
pressing member.
BACKGROUND OF THE INVENTION
[0003] When a conventional disk player plays a disk, firstly, the
disk is inserted into an entrance; secondly, the disk is introduced
into an inner portion of the player; and thirdly, the disk is
disposed onto a disk support. For example, a car disk player always
employs such a kind of disk players. However, the conventional disk
player fails to consider a specific position of the disk player.
Moreover, the conventional car disk player usually employs a spring
or an elastic part but not a permanent magnet which is usually used
in a household disk player to chuck the disk onto the disk support.
Thus, if one wants to use a disk player having a permanent magnet
to secure the disk onto the disk support, it is necessary to
consider the position of the disk player.
[0004] Currently, a disk-chucking device for chucking the disk onto
the disk support is available in the market. The disk-chucking
device comprises a clamp member including a permanent magnet
therewithin. The clamp member is embedded into a support hole of a
support board. Since the clamp member is enclosed by the support
hole, the diameter of the support hole must be larger than the
diameter of a clamp member in order to ensure that the clamp member
can be turned freely. Therefore, when chucking a disk by using the
above disk-chucking device, the center of the disk is easy to
deviate from the center of the disk support. Even though some
disk-chucking devices having a variable support hole which can be
opened or closed corresponding to the introduction of the disk is
present in the market, however, theses disk-chucking devices can
not play disks with different sizes.
SUMMARY OF THE INVENTION
[0005] The present invention is provided to overcome the
above-mentioned problems in the prior art by providing a
disk-chucking device which can chuck disks having different sizes
regardless of a loading position thereof. By using the present
disk-chucking device, a pressing member of the disk-chucking device
can be moved close to a disk support to further chuck a disk onto
the disk support while keeping the center of the pressing member
aligned with the center of the disk support. Moreover, the chuck of
the disk by the pressing member will not hinder a rotation of the
disk.
[0006] According to an embodiment of the present invention, a
disk-chucking device used for a disk player is provided. The
disk-chucking device comprises a pressing member providing a first
through hole at the center thereof and a circular groove at the
side thereof; a turning plate having a second through hole at the
center thereof which allows the pressing member passing through,
and a plurality of first notch portions disposed along the
circumference of the second through hole; a plurality of clamping
members mounted on the turning plate at the notch portions
respectively, each of the clamping members providing a clip to
removably clamp the circular groove of the pressing member; and a
mounting board disposed at an upper portion of the disk player,
providing a third though hole at its center which is aligned with
the second through hole, and defining a plurality of second notch
portions to receive the clamping members respectively, wherein the
turning plate is slidably connected to the mounting board through
the clamping member, the turning plate can rotate with respect to
the mounting board, and the pressing member can be pressed onto and
removed from a disk support of the displayer according to the
rotation of the turning plate.
[0007] According to an aspect of the embodiment, the turning plate
further provides a first connecting member disposed at a periphery
thereof with which the turning plate is engaged to a swivel plate
of the disk player, so that the turning plate can be turned by
controlling a rotation of the swivel plate.
[0008] According to another aspect of the embodiment, the turning
plate further provides a second connecting member at a periphery
thereof, the second connecting member is connected to an elastic
member mounted on the mounting board.
[0009] According to another aspect of the embodiment, the turning
plate comprises a plurality of supporting portions, a sliding
portion of each of the clamping members is disposed on the
supporting portion through a shaft of the clamping member, one end
of the sliding portion is connected to the clip extending inwards
and another end of the sliding portion is connected to an elastic
portion which is mounted on the turning board.
[0010] According to another aspect of the embodiment, each of the
supporting portions comprises a first quadrate support and a second
quadrate support, the first quadrate support provides a fixing hole
and the second quadrate support provides a channel, and the shaft
of the clamping member is inserted into the fixing hole and the
channel so that the sliding portion is movable in a direction of
the movement of the turning plate.
[0011] According to another aspect of the embodiment, an insert is
provided extended upwards from the fringe of the second notch
portion, the insert is inserted into the first notch portion, and
when the turning plate rotates to a place, the insert is barred by
the shaft so that the sliding member can release the pressing
member onto the disk support.
[0012] According to another embodiment of the present invention, a
disk-chucking device used for a disk player is provided. The
disk-chucking device comprises a pressing member providing a first
through hole at the center thereof and a circular groove at the
side thereof; a turning plate having a rear portion mounted on a
mounting board; and two clamping members engaged with each other
being connected to the turning plate, each of the two clamping
members providing a clip to removably clamp the circular groove of
the pressing member, wherein the turning plate can rotate with
respect to the rear portion of the turning plate, which further
moves the clips of the clamping members vertically, so that the
pressing member clasped by the clips can be pressed onto and
removed from a disk support of the displayer.
[0013] According to another aspect of the embodiment, the turning
plate further comprises a first connecting member and a second
connecting member on a side portion thereof through which the
turning plate is engaged to a swivel plate of the disk player; so
that the turning plate can be turned by controlling a rotation of
the swivel plate.
[0014] According to another aspect of the embodiment, the
disk-chucking device further comprises an elastic member connected
to the two clamping members.
[0015] According to another aspect of the embodiment, a third
connecting member is provided on one of the clamping members, and
when the swivel plate rotates to a place, the connecting member is
barred by the swivel plate so that the clips of the clamping
members can be rotated outwards according to the engagement
therebetween, thereby releasing the pressing member onto the disk
support.
[0016] By using the disk-chucking device of the present invention,
the pressing member can be moved close to the disk support while
keeping the center of the pressing member aligned with the center
of the disk support, then the disk is located onto the disk
support, after that the pressing member is released from the
clamping member which thereby can be rotated freely. In this
manner, the present disk-chucking device can chuck the disk
securely regardless of the position of the disk player. In
addition, the pressing member will be kept at an immovable state by
the clips of the clamping member if the disk is not chucked, so
that there is no noise generated even if the disk player is
subjected to somewhat vibration. Moreover, the disk-chucking device
of the present invention is suitable for disks with different
sizes.
BRIEF DESCRIPTION OF THE DRAWINGS
[0017] FIG. 1 is an exploded perspective view of a disk-chucking
device according to a first embodiment of the present
invention;
[0018] FIGS. 2A, 2B, and 2C are schematic views showing a structure
of a disk player employing the disk-chucking device of FIG. 1;
[0019] FIG. 3 is a state view of the disk player in which a smaller
disk is inserted into an entrance of the disk player;
[0020] FIG. 4 is a state view of the disk player in which the
smaller disk is engaged with a smaller disk baffle of the disk
player;
[0021] FIGS. 5A and 5B are state views in which a smaller disk is
not chucked during an operation of loading the smaller disk;
[0022] FIGS. 6A and 6B are state views in which a smaller disk is
chucked;
[0023] FIG. 7 is a state view of the disk player in which the
smaller disk is in a play situation;
[0024] FIG. 8 is a state view in which the smaller disk is chucked
and disengaged from a feeding roller 5 and a driving plate 23;
[0025] FIG. 9 is a state view of the disk player in which a larger
disk is inserted into an entrance of the disk player;
[0026] FIG. 10 is a state view of the disk player in which the
larger disk is engaged with a larger disk baffle of the disk
player; and
[0027] FIG. 11 is a perspective view of a disk-chucking device
according to a second embodiment of the present invention.
DETAILED DESCRIPTION OF THE INVENTION
[0028] According to the present invention, the disk-chucking device
comprises a pressing member and a clamping member which clamps the
pressing member. The pressing member can be moved close to the disk
support corresponding to a movement of the clamping member, while
keeping a center of the clamp member aligned with a center of the
disk support.
[0029] The disk-chucking device of the present invention will now
be described with reference to the drawings.
[0030] Referring to FIG. 1, the disk-chucking device of an
embodiment comprises a pressing member 27, a second turning palate
28, and a mounting board 2. The pressing member 27 comprises a
permanent magnet 27a which is provided within the pressing member
27, a circular groove 27b which is provided around a circumference
of the pressing member 27, and a first through hole 27c at the
center of the pressing member 27 for receiving a center column of
the disk support. The second turning plate 28 (circular turning
plate) is provided at the center of a mounting board 2. The second
turning plate 28 comprises a second through hole 28c at the center
thereof for receiving the pressing member 27, three first notch
portions 28f provided along the circumference of the second through
hole 28c, three supporting portion 281 respectively disposed at the
first notch portions 28f. Each of the supporting portion 281
comprises a first quadrate support 282 providing a fixing hole 28b
and a second quadrate support 283 providing a channel 28a.
[0031] Three clamping members 31 are mounted on the supporting
portions 281. Each clamping member 31 comprises a shaft 31a, and a
sliding portion 31d on which a contacting part 31b is provided. The
contacting part 31b is contact with a surface of the mounting board
2. The shaft 31a is inserted into the fixing hole 28b and the
channel 28a of the supporting portion 218, so that the clamping
members 31 is movably mounted on the second turning plate 28.
[0032] A rod spring 32 (a first elastic member) is mounted on the
second turning plate 28 with an spring end 32a connected to the
sliding portion 31d, which provides a force to urge a clip 31c of
each clamping member 31 to clasp the circular groove 27b and
another force to urge the pressing member 27 to approach to the
disk support. Three second notch portions 2c (cut portion) are
formed around a third through hole 2e at the center of the mounting
board 2 for receiving the clamping members 31, and three insert 2d
which can respectively engage with the clamping members 31 are
provided at fringes of the three second notch portions 2c,
respectively.
[0033] In order to ensure that the clip 31c of each of the clamping
members 31 can be released from the circular groove 27b of the
pressing member 27, the fixing hole 28b is configured to be a
square-shaped or round-shaped hole and the channel 28a is
configured to be a long hole extending parallel to a rotating
direction of the second turning plate 28, so that the support shaft
31a can be moved within the channel 28a while fixed in the fixing
hole 28b.
[0034] The second turning plate 28 further comprises a first
connecting member 28d which is engaged with a swivel plate 29
connected to the mounting board 2, and a second connecting member
28e at an outside thereof opposite to the first connecting member
28d to connect the mounting board 2 by a resilient spring 30 (a
second elastic member).
[0035] FIGS. 2A, 2B, and 2C are schematic views showing a structure
of a disk player which employs the above-mentioned disk-chucking
device. As shown in these figures, the mounting board 2 which
covers the whole device is disposed within a housing 1 of the disk
player. On the mounting board 2 are provided a detecting mechanism
for detecting the size of the disk, a disk-chucking device for
chucking the disk onto the disk support, a disk center locating
mechanism for transmitting the disk from the entrance 4 onto the
disk support, and a driving mechanism for driving a feeding roller
drive mechanism. Moreover, a guide plate 6 for chucking a disk
which is inserted into the entrance 4 through the feeding roller 5,
and a larger disk baffler 7 are also provided on the mounting board
2.
[0036] On the other hand, the feeding roller drive mechanism is
provided on a side portion of the housing. The feeding roller drive
mechanism comprises a feeding roller support plate 8 for supporting
the feeding roller 5, a spring (not shown) for turning the support
plate 8 so that the feeding roller can abut against the guide plate
6, and a gear assembly (not shown) for transmitting power from a
driving motor (not shown) to the feeding roller 5. A control plate
9 (control unit) mounted on a side surface of the housing 1 is able
to be moved according to the engagement between the drive mechanism
and the driving motor. The control plate 9 provides a cam 9a
engaged with the feeding roller support plate 8. When the control
plate 9 is moved towards the entrance by the power of the driving
motor, the cam 9a can make the feeding roller 5 apart from the
guide plate 6. Moreover, the housing 1 is provided with a disk
support motor 3 for supporting the disk support, and a pickup 10.
The disk support 3 has a center column 3b which can be embedded
into the center hole of the disk. An inclined plane 3c is formed on
a front portion of the center column for guiding the center hole of
the disk to enclose the center column 3b. Furthermore, a magnetic
material is provided within a carrying surface 3d which carries the
disk. A loading route of the disk is defined as the route located
between the entrance 4 and the larger disk baffler 7.
[0037] The disk detecting mechanism is disposed adjacent to the
disk entrance 4. The disk detecting mechanism comprises a pair of
detecting levers 11 and 12 which are respectively located at a
right portion and a left portion of the entrance 4, a connecting
plate 13 which connects the detecting lever 11 to the detecting
lever 12, and a first switch 14 and a second switch 15 for
transmitting an electronic signal according to a turning degrees of
the detecting levers. The detecting levers 11, 12 provide two
engaging pins 11a, 12a which are engaged with the connecting plate
13, and two detecting pieces 11b, 12b each of which has an end
contact with a periphery of the disk. The detecting pieces 11b, 12b
are disposed adjacent to the entrance 4, so that the detecting
levers 11, 12 can come into contact with the periphery of the disk
and then be pushed to rotate outwardly when a disk is inserted into
the entrance 4. On the other hand, a motion of one of the detecting
levers 11, 12 can be transmitted to the other one of the detecting
levers 11, 12 through the connecting plate 13. For example, if the
left detecting lever 11 itself is rotated clockwise around a
turning pivot 11d, the connecting plate is moved rightward to
thereby rotate the right detecting lever 12 anticlockwise.
Moreover, if the right detecting lever 12 itself is rotated
anticlockwise around a turning pivot 12d, the connecting plate is
moved rightward to thereby rotate the left detecting lever 11
clockwise.
[0038] Furthermore, contact pins 11e, 12e are provided on the
detecting levers 11, 12, respectively. A first contact part 13b for
engaging or disengaging with the contact pin 12e of the right
detecting lever 12 and a second contact part 13c for engaging or
disengaging with the contact pin 11e of the left detecting lever 11
are provided on the connecting plate 13. The contact pins 11e, 12e
are located at a straight line defined between the turning pivots
11d and 12d of the detecting levers 11, 12. In addition, there
exists a certain distance between the contact pins 11e, 12e and
their corresponding contact parts 13c , 13b. In this manner, the
contact pin 11e will not contact with the second contact part 13c
when the left detecting lever 11 is rotated clockwise. However, if
the left detecting lever 11 itself is rotated clockwise which in
turn drives the connecting plate 13 to move rightward, the contact
pin 12e of the right detecting lever 12 will come into contact with
the first contact part 13b, so as to restrict the connecting plate
13 from moving rightward, and thereby prevent the left detecting
lever 11 from rotating clockwise.
[0039] On the other hand, the contact pin 12e will not contact with
the first contact part 13b when the right detecting lever 12 is
rotated anticlockwise. However, if the right detecting lever 12
itself is rotated anticlockwise which in turn drives the connecting
plate 13 to move rightward, the contact pin 11e of the left
detecting lever 11 will come into contact with the second contact
part 13c, so as to restrict the connecting plate 13 from moving
rightward, and thereby prevent the right detecting lever 12 from
rotating anticlockwise. That is, if one of the detecting levers is
rotated alone, the other one of the detecting levers will be
restricted from rotating. Accordingly, the disk will not be
introduced into the entrance 4 unless the disk is exactly placed at
the center of the entrance 4 to make the detecting levers 11, 12
rotate simultaneous. Therefore, according to the present
embodiment, the disk can be introduced into the center of the
entrance and then placed onto the disk support quickly and
securely.
[0040] A switch cam 11c is mounted on the left detecting lever 11.
The switch cam 11c can turn on the first and the second switches
14, 15 mounted on the mounting board 2, so as to make the first
switch 14 send out an electronic signal to stop the drive motor
after a smaller disk is ejected out of the entrance 4, and make the
second switch 15 send out an electronic signal to stop the drive
motor after a larger disk is ejected out of the entrance 4. A first
spring 16 which provides a force to urge the connecting plate 13 to
move leftward is mounted on the connecting plate 13. Then, the
connecting plate 13 can urge the left detecting lever to rotate
anticlockwise and the right detecting lever to rotate clockwise
through the force exerted by the first spring 16.
[0041] The smaller disk D1 center locating mechanism comprises a
first guide part 17 which is mounted on the mounting board 2 close
to the right detecting lever 12 and is capable of rotating freely,
a second guide part 18 which is mounted on the mounting board 2
close to the left detecting lever 11 the and is capable of
rotating, a smaller disk baffler 19, a sliding plate 20 for driving
the smaller disk baffler 19, and a portion of the connecting plate
13. The first guide part 17 comprises a first contact piece 17a
which can contact with a strip 13a of the connecting plate 13, and
a first guide piece 17b located on the loading route of the disk.
The first guide part 17 exerts a turning force to the first guide
piece 17b through a spring (not shown) to place the first guide
piece 17b on the loading route of the disk, so as to make the first
contact piece 17a against the strip 13a.
[0042] The second guide part 18 comprises a second contact piece
18a which is engaged with a first protruding piece 20a of the
sliding plate 20, and a second guide piece 18b located on the
loading route of the disk. The second guide part 18 exerts a
turning force to the second guide piece 18b through a spring (not
shown) to place the second guide piece 18b on an loading route of
the disk, so as to make the second contact piece 18a against the
first protruding piece 20a. The second guide piece 18b is located
at a point which is slightly away from the periphery of the smaller
disk D1 with respect to a cross point between the loading route of
the disk and a center line of the disk support perpendicular to the
loading route. The sliding plate 20 can transmit a motion of the
connecting plate 13 through a joint plate 21. The sliding plate 20
comprises the first protruding piece 20a, an operating piece 20b of
a third switch 22, a second protruding piece 20c engaged with the
smaller disk baffler 19, and a first recess 20d engaged with the
first turning plate 24 which can control a rotation of the driving
plate 23 (driving part). The motor is started up as soon as the
third switch 22 is turned on by the operating piece 20b.
[0043] The smaller disk baffler 19 is located on the loading route
of the disk. The smaller disk baffler 19 comprises two restraining
chips 19a which are contact with the periphery of the smaller disk,
a turning shaft 19b for supporting the restraining chips, and a
third contact piece 19c disposed against the second protruding
piece 20c, when the smaller disk D1 is placed on the disk support.
In addition, if the sliding plate 20 is moved, the second
protruding piece 20c can press the third contact piece 19c, and the
restraining chips 19a can make the turning shaft 19b rotate. In
this manner, a front portion of the restraining chips 19a can be
rotated in a direction towards the entrance 4, thereby departing
from the loading route of the disk. Moreover, the first guide piece
17b, the second guide piece 18b, and the restraining chips 19a are
disposed with a distance, which is slightly larger than a radius of
the smaller disk, from the center of the disk support 3.
Preferably, the larger portion between the distance and the radius
of the smaller disk is equal to a moving distance needed for
positioning the center hole of the disk from the inclined plane 3c
of the center column 3b to the center of the disk support 3, when
the center hole of the disk is embedded around the center column 3b
of the disk support 3. That is, the moving distance is exactly the
space for embedding the disk.
[0044] A center locating mechanism of the larger disk D2 comprises
linear rails 1a which are respectively mounted on a left portion
and a right portion inside the housing 1, and an arch-shaped larger
disk baffler 7. The distance between the linear rails 1a is
slightly larger than the diameter of the larger disk D2. In
addition, the larger disk baffler 7 is mounted on a disk support
for supporting the larger disk, which is slightly apart from a
periphery of the larger disk with a deviated distance. Preferably,
the deviated distance is equal to a moving distance needed for
positioning the center hole of the disk from the inclined plane 3c
of the center column 3b to the center of the disk support 3, when
the center hole of the disk is embedded around the center column 3b
of the disk support 3. Moreover, the linear rails la and the larger
disk baffler 7 are used to direct the disk D2 onto the disk support
during the introduction of the disk.
[0045] The drive mechanism comprises the driving plate 23 which can
be rotated by abutting against the periphery of the disk when the
disk is introduced onto the disk support, and the first turning
plate 24 for controlling a turning pivot of the driving plate 23. A
pillar 23a, which is projected into the loading route of the disk
and contacts with the periphery of the introduced disk, is provided
at an end of the driving plate 23. An extended piece 23b, which is
engaged with a bottom surface of the disk for supporting the disk,
is provided on a front portion of the driving plate 23. An extended
part 23c, which is engaged with a crank aperture 9b located on the
control plate 9, is provided on the other end of the driving plate
23. A turning shaft 23d, which is embedded into an elongate
aperture 2a located on the mounting board 2, is provided on a
center portion of the driving plate 23. In addition, a second
spring 25 is attached to the driving plate 23 for exerting a weak
force to urge the pillar 23a towards the entrance 4.
[0046] On the other hand, a first arch-shaped aperture through
which the pillar 23a is inserted is formed on the mounting board 2.
The first turning plate 24 can be rotated freely on the mounting
board 2 due to the axial support by an axis 24a, so as to make the
turning shaft 23d of the driving plate 23 embed into a second
arch-shaped aperture 24b which is configured around the axis 24a. A
linear aperture 24c that is overlapped with the elongate aperture
2a is provided at an end of the second arch-shaped aperture 24b,
and a recess 24d that is parallel to the second arch-shaped
aperture 24b is provided at an end of the linear aperture 24c.
Moreover, a bracket 24e which is engaged with a first recess
portion of the sliding plate 20 is provided on the first turning
plate 24.
[0047] The crank aperture 9b of the control plate 9 is used to
drive an end of the driving plate 23 to approach to the mounting
board 2 and to make the driving plate 23 to rotate around the
turning shaft 23d towards the introduced direction of the disk,
corresponding to the movement of the control plate 9. That is, when
the disk is introduced adjacent to the baffler, the pillar 23a of
the driving plate 23 can abut against the periphery of the disk,
and the driving plate 23 can be turned with the bottom surface of
the disk supported the extended piece 23d. By virtue of the turning
of the driving plate 23, the extended part 23c of the driving plate
23 abuts against a first side edge of the crank aperture 9b to move
the control plate 9. At this time, the control plate 9 begins to
move by the power of the driving motor. Thus, the crank aperture 9b
pushes the extended part 23c up towards the mounting board 2. By
such a push motion, the pillar 23a of the driving plate 23 is also
turned towards the mounting board 2 around the turning shaft 23d,
so that the extended piece 23b of the driving plate 23 can approach
to the carrying surface 3d of the disk support 3 while supporting
the bottom surface of the disk.
[0048] After the disk reaches the disk support 3, the crank
aperture 9b is kept turning to drive the end of the driving plate
23 to move towards the mounting board 2 so as to make the extended
piece 23b depart from the bottom surface of the disk. Then,
according to the movement of the control plate 9, a second side
edge of the crank aperture 9b presses the extended part 23c to
drive the pillar 23a of the driving plate 23 to turn towards the
introduced direction of the disk, so as to make the pillar 23a
depart from the periphery of the disk. In addition, the control
plate 9 further provides a first contact piece 9c and a second
contact piece 9d for driving the crank mechanism, and a third
contact piece 9e for turning on/off a fourth switch 26. Here, the
first contact piece 9c, the crank aperture 9b and the cam 9a are
configured to drive the disk to approach to the disk support, drive
the feeding roller 5 to depart from the guide plate 6, and drive
the pressing member 27 to approach to the disk support 3,
simultaneously, while at the same time keeping the bottom surface
of the disk supported by the extended piece 23b.
[0049] Referring to FIGS. 1 and 2, a resilient spring 30 is
provided between the second turning plate 28 and the mounting board
2 to make the second turning plate retain at a terminal point of
the turning. When the second turning plate 28 is rotated, the
sliding portions 31b are slid into the second notch portions 2c of
the mounting board 2, the clamping members 31 can drive the clips
31c to approach to the disk support through a force exerted by the
rod spring 32. In this way, the clips 31c can approach to the disk
support 3 while clasping the pressing member 27. Since the disk
support 3 is filled with the magnetic materials, the disk is
chucked onto the disk support 3 by means of the permanent magnet
27a within the pressing member 27. If the second turning plate 28
is kept rotating, the support shafts 31a of the clamping members 31
may come into contact with the insert 2d to cause the clips 31c of
the clamping members 31 to release from the circular groove 27b of
the pressing member 27, which thereby makes the rotation of the
disk possible.
[0050] The introduction process of the smaller disk is described as
follows.
[0051] FIG. 3 is a view showing that a smaller disk is inserted
into the entrance 4. The two detecting levers 11, 12 abut against
the periphery of the smaller disk D1 and are turned outwards in a
small amount (small turning degrees), when a front portion of the
smaller disk D1 is inserted into a position between the feeding
roller 5 and the guide plate 6. At this time, the connecting plate
13 is moved rightward slightly according to the turning of the
detecting levers 11, 12, so that the sliding plate 20 is moved
towards the entrance through the joint plate 21. According to the
movement of the sliding plate 20, the third switch 22 is turned on
by the operating piece 20b, so as to start up the driving motor.
Thus, the feeding roller 5 is rotated to insert the smaller disk D1
into the entrance and introduce the smaller disk D1 towards the
inside of the device. On the other hand, since the connecting plate
13 is moved just in a small amount, the strip 13a will not engage
with the first contact piece 17a, so that the first guide piece 17b
of the first guide part 17 is located on the loading route of the
disk.
[0052] Moreover, since the sliding plate 20 is also moved just in a
small amount, the first protruding piece 20a will not engage with
the second contact piece 18a. Thus, the second guide piece 18b of
the second guide part 18 is located on the loading route of the
disk. At this time, the clamping members 31 mounted on the second
turning plate 28 clasping the pressing member 27 is restrained in a
clamping position by the resilient spring 30, and the pressing
member 27 is raised above center column 3b of the disk support 3 by
the clips 31c of the clamping members 31 for that the sliding
portions 31b are contact with the mounting board 2. Thus, the
smaller disk D1 will not contact with the pressing member 27 but be
placed in a position between the pressing member 27 and the disk
support 3 (as shown in FIG. 4) due to the guide of the first guide
part 17 and the second guide part 18. On the other hand, the center
of the pressing member 27 is in alignment with the center column 3b
of the disk support 3.
[0053] FIG. 5 shows that a smaller disk D1 is introduced in such a
position that a periphery of the disk D1 is contact with the
restraining chips 19a of the smaller disk baffler 19. At this time,
the turning shaft 23d of the driving plate 23 is positioned at an
immovable state according to the elongate aperture 2a and the
second arch-shaped aperture 24b. In addition, the front portion of
the smaller disk D1 presses the pillar 23a of the driving plate 23
to drive the driving plate 23 to turn anti-clockwise around the
turning shaft 23d, so that the extended part 23c can press a side
edge the crank aperture 9b of the control plate 9 to move the
control plate 9 towards the entrance. Moreover, the driving motor
can provide a power to facilitate the movement of the control plate
9. Then, the first contact piece 9c of the control plate 9 is
engaged with the swivel plate 29 to rotate the swivel plate 29
anti-clockwise so as to rotate the second turning plate 28
clockwise through the first connecting member 28d. At the same
time, the bottom surface of the smaller disk is supported by the
extended piece 23b as shown in FIG. 5.
[0054] The cam 9a is engaged with the feeding roller support plate
8 for guiding the feeding roller 5 apart from the guide plate 6,
while the second turning plate 28 is turning. At the same time, the
crank aperture 9b causes the pillar 23a of the driving plate 23 to
rotate close to the mounting board 2. According to the rotation of
the driving plate 23, the extended piece 23b can move in a
direction same to the moving direction of the feeding roller 5
while supporting the bottom surface of the smaller disk D1.
[0055] Moreover, the sliding portions 31b of the clamping members
31 are slid into the second notch portions 2c of the mounting board
2 as the second turning plate 28 rotates. And then, the clips 31c
of the clamping members 31 cause the smaller disk and the pressing
member 27 to approach to the disk support 3 simultaneously under
the action of the rod spring 32 as shown in FIG. 6. At this time,
the center of the pressing member 27 is aligned with the center of
the disk support 3 as the clamp member is moved close to the disk
support 3 by means of the clamping members 31. In the meantime, the
smaller disk is positioned onto the disk support 3 according to the
guide of the two restraining chips 19a located in the inner side of
the device, and the first guide piece 17b and the second guide
piece 18b separately located at the left and the right of the disk
support. Thus, the smaller disk D1 can be correctly positioned onto
the disk support 3 by means of the extended piece 23b, the pressing
member 27 and the feeding roller 5, even if the feeding roller 5 is
released from the guide plate 6.
[0056] FIG. 7 shows that the smaller disk is in a play situation.
The smaller disk D1 can be secured on the disk support by the
permanent magnet within the clamp member 27. When the smaller disk
D1 is introduced to the inclined plane 3c engaging with the center
column of the disk support 3, the smaller disk can be slightly
moved towards the entrance due to the inclined plane 3c, so that
the periphery of the smaller disk is apart from the baffler 19a. In
addition, the extended part 23c is pushed towards another side of
the crank aperture 9b, the driving plate 23 continues to rotate
anti-clockwise, so that the pillar 23a is completely released from
the periphery of the smaller disk. Moreover, as shown in FIG. 8,
the feeding roller 5 and the extended piece 23b are also released
from the bottom surface of the smaller disk D1, which will not
hinder the rotation of the smaller disk D1.
[0057] Moreover, as the second turning plate 28 rotates, the
support shafts 31a come into contact with the insert 2d of the
mounting board 2, and then, the insert 2d can press the shafts 31a
to further rotate the clamping members 31 anti-clockwise around the
fixing hole 28b. After that, the clips 31c of the clamping members
31 are released from the circular groove 27b, so that the pressing
member 27 is able to rotate together with the disk support. In
addition, the resilient spring 30 is compressed when the second
turning plate 28 is rotated clockwise, so that the second turning
plate 28 and the clips 31c of the clamping members 31 can be
released from the circular groove 27b under the resilient force of
the resilient spring 30. After that, the third contact piece 9e can
turn off the fourth switch 26 to further stop the driving
motor.
[0058] As stated above, the smaller disk D1 is introduced onto the
disk support 3 according to the guide of the two restraining chips
19a located in the inner side of the device, and the first guide
piece 17b and the second guide piece 18b separately located at the
left and the right of the disk support, so that the smaller disk D1
can be correctly positioned onto the disk support 3, even if the
feeding roller 5 is released from the guide plate 6. In addition,
the pressing member 27 and the disk support may comprise permanent
magnets, respectively, so that the disk can be secured on the disk
support according to a magnetic force between the magnets.
Accordingly, the introduction of the disk can be performed securely
regardless of the position of the disk player.
[0059] Moreover, the restraining chips 19a, the first guide piece
17b, and the second guide piece 18b will not be moved during the
introduction of the smaller disk, so that the disk-chucking device
of the present invention is relatively simple in configuration.
[0060] The introduction process of the larger disk is described as
follows.
[0061] FIG. 9 shows that a larger disk D2 is inserted into the
entrance 4 through the feeding roller 5. The two detecting levers
11, 12 abut against the periphery of the larger disk D2 so that the
detecting levers 11, 12 can be turned in a great amount (large
turning degrees). Thus, the connecting plate 13 is also moved in a
great amount, so that the strip 13a can engage with the first
contact piece 17a to rotate the first guide part 17 and make the
first guide piece 17b retreat from the loading route of the disk.
Moreover, the sliding plate 20 is also moved in a great amount so
that the first protruding piece 20a can engage with the second
contact piece 18a, which rotates the second guide part 18 to
further make the second guide piece 18b retreat from the loading
route of the disk. Furthermore, as the sliding plate 20 is moved
greatly, the second protruding piece 20c can engage with the third
contact piece 19c to rotate the smaller disk baffler 19 so as to
make the restraining chips 19a retreat from the loading route of
the disk. And then, the first recess 20d of the sliding plate 20
can engage with the bracket 24e of the first turning plate 24 to
thereby rotate the first turning plate 24 anti-clockwise around the
axis 24a. According to the rotation of the first turning plate 24,
the turning shaft 23d of the driving plate 23 is located at a cross
point of the second arch-shaped aperture 24b and the linear
aperture, which thereby comes into a movable state. And then, the
driving plate 23 is turned around a contact point of the extended
part 23c and the crank aperture 9b, while the turning shaft 23d is
moved within the linear aperture 24c and the elongate aperture
2.
[0062] FIG. 10 is a view showing that the larger disk D2 is engaged
with the larger disk baffle 7. Here, the bracket 24e is employed to
restrict the return of the sliding plate 20 by using the engagement
between the turning shaft 23d and the recess 24d of the first
turning plate 24. Thus, the left and right detecting levers 11, 12
is kept at a position after turning a great range, so that the left
and right detecting pieces 11b, 12b can release from the periphery
of the larger disk D2. On the other hand, the turning shaft 23d is
contact with an end of the elongate aperture 2a and the driving
plate 23 is turned anti-clockwise, so that the control plate 9 is
moved towards the entrance 4. During the movement of the control
plate 9, the power from the driving motor is transmitted to the
control plate 9 to continuously move the control plate 9 towards
the entrance 4. After that, the larger disk is chucked onto the
disk support by the clamp member, which is similar to the
introduction of the smaller disk. And then, the fourth switch 26 is
turned off by the third contact piece 9e so as to stop the driving
motor.
[0063] According to the present invention, the detecting levers 11,
12 further provide the contact pins 11e, 12e, respectively, and the
connecting plate 13 further provide a first contact part 13b and a
second contact part 13c for respectively engaging and disengaging
with the contact pins 11e, 12e. In this way, the disk can be
inserted into the entrance and introduced onto the disk support
quickly and securely, only by locating the contact pins 11e, 12e at
a straight line defined between the turning pivots 11d, 12d of the
detecting levers 11, 12 before turning the detecting lever 11,
12.
[0064] Moreover, the disk-chucking device comprises the pressing
member 27, the second turning plate 28 which is secured on the
center of the mounting board 2 and capable of turning, the swivel
plate 29 for transmitting the motion of the control plate 9 to the
second turning plate 28 through the first contact piece 9c, the
resilient spring 30 for keeping the second turning plate at a
terminal point of the turning, three clamping members 31 which are
mounted on the second turning plate 28 through the support shafts
31a, and the rod spring 32 for providing a force to urge a clip 31c
of each clip to clasp the circular groove 27b and another force to
urge the pressing member 27 to approach to the disk support. When
using the disk-chucking device of the present invention, the clamp
member is moved close to the disk support while keeping the center
of the clamp member consistent with the center of the disk support,
after that the disk is located onto the disk support, then the
clamp member is released from the chucking state. Thus, the present
disk-chucking device can chuck the disk securely regardless of the
position of the disk player. In addition, the clamp member will be
kept at an immovable state by the clips if the disk is not chucked,
so that there is no noise generated even if the disk player is
subjected to somewhat vibration. Moreover, the disk-chucking device
of the present invention is suitable for disks with different
sizes.
[0065] FIG. 11 is a perspective view of the disk-chucking device
according to another embodiment of the present invention. The
present embodiment 2 can also be employed in the above-mentioned
disk player.
[0066] As shown in FIG. 11, the disk-chucking device of the
embodiment 2 comprises a pressing member 40 including a circular
groove 40a which is provided around a circumference of the pressing
member 40, and a turning plate 41 having a rear portion 411 thereof
mounted on the mounting board 2. The turning plate 41 is able to be
turned around the rear portion 411. A first connecting member 41a
and a second connecting member 41b which are located on a side
portion of the turning board 41 are engaged with a swivel plate 29
connected to the mounting board 2. The swivel plate 29 is also
engaged with a control part 9 of the disk player so as to provide a
force driving the turning plate 41 to rotate around the rear
portion 411 of the turning plate 41.
[0067] Two clamping members 42, 43 which can be turned are provided
on the turning board 41. Two clips 42c, 43c are respectively
provided on the clamping members 42, 43 for clasping the pressing
member 40. The clamping members 42 and 43 are engaged with each
other through toothed portions 42a and 43a thereof. If the clip 42c
of the clamping member 42 is released from the pressing member 40,
then the clip 43c of the clamping member 43 will also be released
from the pressing member 40 according to the engagement of the
toothed portions 42a and 43a, and vice versa. An elastic part 44 is
mounted between the clamping members 42 and 43 for providing a
force so that the clips 42c, 43c of the clamping members 42, 43 can
clasp the circular groove 40a of the pressing member 40. A third
connecting member 42b is provided on the clamping member 42. When
the swivel plate 29 is turned anti-clockwise to press the third
connecting member 42b, the clamping members 42, 43 will be released
from the pressing member 40.
[0068] The first connecting member 41a is configured to engage with
the swivel plate 29 so that the front portion of the turning plate
41 can be turned upwardly around the rear portion 411. The second
connecting member 41b is configured to engage with the swivel plate
29 so that the front portion of the turning plate 41 can be turned
downwardly around the rear portion 411. In this way, the pressing
member clasped by the clamping members 41 and 42 can be moved
vertically through a through hole 2f provided on the mounting board
2 corresponding to the rotation of the swivel plate 29. For
example, the second connecting member 41b may be an inclined groove
receiving an end of the swivel plate 29, so that the turning plate
41 can be turned around the rear portion thereof when the end of
the swivel plate 29 is slid within the inclined groove.
[0069] According to the disk-chucking device of the embodiment 2,
the swivel plate 29 is engaged with the first connecting member 41a
to locate the front portion of the turning plate 41 above the
mounting board 2 before loading the disk, so that the clamping
members 42, 43 can clasp the pressing member 40 above the mounting
board. Moreover, when the swivel plate 29 is engaged with the
second connecting member 41b, the second connecting member 41b can
be turned to further drive the front portion of the turning plate
41 to turn close to the mounting board 2, so that the clamping
members 42, 43 mounted on the turning plate 41 can clasp the
pressing member 40 to approach to the disk support under the
mounting board 2.
[0070] As the swivel plate 29 is rotated anti-clockwise, the
pressing member 40 is pressed onto the center column of the disk
support. Then, the swivel plate 29 is engaged with and presses the
third connecting member 42b of the clamping member 42, thereby
causing the clips 42c, 43c of the clamping members 42, 43 to rotate
outwards through the engagement of the toothed portions 42a and
43a. In this way, the clips 42c, 43c can be released from the
circular groove 40a, so that the pressing member 40 is able to be
turned freely. In addition, the pressing member 40 and the disk
support may comprise permanent magnets, respectively, so that the
disk can be secured on the disk support according to a magnetic
force between the magnets. According to the second embodiment of
the invention, the disk-chucking device employs two clamping
members 42 and 43 to clasp the pressing member 40, which has a
relatively simple configuration.
[0071] The present invention can be used not only in a household
disk player, but also in a car disk player. Moreover, the
disk-chucking device of the present invention can chuck disks with
different sizes onto a disk support securely.
* * * * *