Dynamic information storage or retrieval – Dynamic mechanism subsystem – Specified detail of transducer assembly support structure
Reexamination Certificate
2001-07-27
2004-01-27
Korzuch, William (Department: 2653)
Dynamic information storage or retrieval
Dynamic mechanism subsystem
Specified detail of transducer assembly support structure
C369S215100, C369S219100
Reexamination Certificate
active
06683842
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a guiding mechanism disposed within an optical storage carrier player, especially to kind guiding mechanism with an opening or a deformation portion formed on the base to prevent the upward bending of the center portion of the guiding-rod.
2. Background of the Invention
Recently, because the techniques of electronics relevant industry are progressing daily, the practical application of relevant technique of the optical storage carrier player is also more prevalent. Especially, the storing equipment of a optical storage carrier player is forging toward high-speed era and requires high speed for storing and retrieving data.
Under the requirement of high rotating speed of a optical storage carrier player, the quality of the driving mechanism of the optical reading-head will severely influences the speed and stability of the data storage and reading process. Please refer to
FIG. 1
, which is an illustration for driving mechanism of screw-rod type of prior optical storage carrier player. The intended-to-action CD (not shown in the drawing) applies a main axis motor
10
arranged on the base plate
1
to drive itself. The driving mechanism
30
has a driving motor
31
, and a gear set
32
connecting to a screw transmission rod
33
that passes through the reading-head
20
, the reading-head
20
is used to read the CD data. The screw-transmission rod
33
passes through one side of the reading-head
20
to receive the driving force provided by the screw-transmission rod
33
; and the guiding mechanism
50
passes through the other side of the reading-head
20
. Because the rotation of the driving motor
31
drives the gear set
32
to make the screw-transmission rod
33
rotate and transmit, the reading-head
20
can move along the longitudinally axis of the guiding mechanism
50
for reading the CD data.
Please refer to
FIG. 2
, which is an illustration for the rack-typed-driving mechanism for the prior optical storage carrier player. The intended-to-move CD (not shown in the drawing) is driven by a main-axis motor
10
arranged on a base plate
1
. And the driving mechanism
30
has a driving motor
31
. The driving motor
31
drives a rack set
34
with a gear set
32
. And the reading-head
20
is then applied for reading the CD data. One side of the reading-head
20
arranges with a moving seat
35
that is connected to rack set
34
and rides over a guiding mechanism
50
. And another side passes through a guiding mechanism
50
. Since the driving motor
31
rotates, drives the gear set
32
, and makes the racket
34
move, so the reading-head
20
is driven to move along the longitudinal axis of the guiding rod of the guiding mechanism
50
for reading the CD data.
From above-mentioned prior art, we know that the stability of a optical reading-head
20
when the reading-head
20
is moving along the guiding mechanism
50
will influence the speed and stability of storing and reading the CD data. Please refer to
FIG. 3
, which is an embodiment illustration for the prior guiding mechanism. Because in prior driving-device, the screw rod type and the rack type individually have one set and two sets guiding mechanism
50
, in order to understand easily and without confusion, one set guiding mechanism will be chosen for illustration.
The guiding mechanism
50
arranges with a guiding rod
51
that is a round rod can provide a reading-head
20
to move along an longitudinal axis of the guiding rod
51
. One end of the guiding rod is placed on an receiving slot
531
. The receiving slot
531
is arranged on a base
53
. One side of the base
53
is arranged with an appropriate depth and becomes the receiving slot
531
. A fastening device
52
is corresponding to the base
53
and can connect with the base
53
. When the guiding rod
51
is placed on the receiving slot
531
, the fastening device attached onto the base
53
to press the guiding rod
51
toward the receiving slot
531
.
If the depth of the receiving slot
531
is designed larger than the height of the round rod, a gap will be created when the fastening device connects with the base
53
, and it will make the guiding rod swing and shake in the receiving slot
531
. Of course, the movement of the reading-head
20
is relatively unstable and creates a big barrier for reaching the high-speed requirement of a optical storage carrier player.
On the other hand, if the depth of the receiving slot
531
is designed smaller than the height of the round rod, it will cause the center portion of the guiding rod bending upward when the fastening device
52
presses the end of the guiding rod toward the base
53
. When the reading head
20
moves, this situation will cause a wearing-out of the guiding rod
51
or a unstable movement of the reading head
20
, or even can cause a machine failure or damage.
Therefore, the design or manufacture personnel usually devote a large amount of cost to improve the matching tolerance between the guiding rod
51
and the receiving slot
531
. But because the frequent changes of surrounding temperature and frequency make the materials inflate in hot temperature and shrink in cold temperature, the problems of gap and upward bending happen all the time. These problems influence the driving speed of the reading-head and further severely influence the reading quality and efficiency of a optical storage carrier player, therefore a solution for this shortcoming is very urgent.
SUMMARY OF INVENTION
The main object of the present invention is to provide a guiding mechanism, through a structure improvement of a base to reach a smooth application of a guiding mechanism, the driving speed of a reading-head can be further improved and the reading quality and efficiency of the optical storage carrier player will become the best one.
To achieve above-mentioned objects, a guiding mechanism of the present invention includes: (a) a guiding rod for supporting a reading-head sliding thereon along a longitudinal axis of the guiding rod, the guiding rod having a first end and a center portion, (b) a base for supporting the first end of the guiding rod, the base having a receiving slot formed on a upper surface of the base, and a V-shaped opening formed on a bottom surface of the receiving slot, (c) a fastening device disposed on the base for pressing the guiding rod toward the receiving slot, and (d) a deformation portion formed on the upper surface of the base.
In order to prevent an upward bending of the center portion, the combination of a first height of the deformation portion and a depth of the receiving slot is larger than a second height of the guiding rod.
The deformation portion comprises an U-shaped portion and a circled portion formed on the upper surface of the base. The first end of the guiding rod is disposed beneath the U-shaped portion, and the fastening device is disposed on the circled portion.
When the first end of the guiding rod being pressed toward the receiving slot by the fastening device, (a) the first end of the guiding rod is positioned above the opening, and (b) the first height of the deformation portion is simultaneously reduced by the fastening device to make the fastening device firmly press the first end of the guiding rod.
For your esteemed review committee members to further understand and recognize the present invention, a detailed description matching with several drawings is presented as following.
REFERENCES:
patent: 4974222 (1990-11-01), Ishitoya et al.
patent: 5982735 (1999-11-01), Tsai
patent: 2001/0022772 (2001-09-01), Moriyama
Acer Communications & Multimedia Inc.
Blouin Mark
Korzuch William
Troxell Law Office PLLC
LandOfFree
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