Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Tape record
Reexamination Certificate
1999-02-03
2001-05-15
Tupper, Robert S. (Department: 2754)
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Tape record
Reexamination Certificate
active
06233112
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a magnetic recording/regenerating apparatus. More particularly, the present invention relates to a mounting mechanism for ensuring mounting of a cartridge for housing a magnetic tape.
2. Description of the Related Art
A conventional magnetic recording/regenerating apparatus will be described with reference to a plan view shown in
FIG. 19
, a sectional view of
FIG. 19
cut along the line
20
A—
20
A shown in
FIG. 20A
, and a partial side view of
FIG. 20A
shown in FIG.
20
B.
In the conventional magnetic recording/regenerating apparatus
21
(hereinafter referred to as the “apparatus
21
”), a pair of rail-shaped guiding members
21
b
and
21
c
each having a ]-shaped groove are attached in a vertically opposite relationship toward the right side end in
FIG. 19
to a base plate
21
a
provided on the bottom.
As shown in
FIG. 20A
, a pair of openings
21
d
are formed in a part of the base plate
21
a
corresponding to a position where the pair of guiding members
21
b
and
21
c
are located.
An insertion port
21
e
for inserting a cartridge
23
into the magnetic recording/regenerating apparatus by guiding a bottom plate
23
c
of the cartridge described later is formed at the right end of the magnetic recording/regenerating apparatus shown in FIG.
20
A.
A pair of leaf springs
22
having a large elastic force with an end screw-fitted and the other end left free are arranged on the back where the guiding members
21
b
and
21
c
of the base plate
21
a
are located. An engagement section
22
a
is formed by folding at the tip of the free end of each of the leaf springs
22
, and an engaging roller
22
b
is rotatably supported by the engagement section
22
a.
The stopper roller
22
b
is positioned in an opening
21
d
of the base plate
21
a
and is movable vertically with one of the screw-fitting sections as a fulcrum within the opening
21
d.
A cartridge
23
represented by a two-point chain line in
FIG. 19
is inserted through the insertion port
21
e
, guided by the guiding members
21
a
and
21
b
, and mounted within the apparatus
21
. In this cartridge
23
, a magnetic tape
23
a
is housed, and a pair of ]-shaped guide grooves
23
b
are formed on the both outer sides as shown in FIG.
20
B. The pair of guide grooves
23
b
are guided by the aforementioned rail-shaped guiding members
21
b
and
21
c
to guide the cartridge
23
into the apparatus
21
.
A notch
23
d
is formed at a part of a base plate
23
c
composing the guide grooves
23
b
of the cartridge
23
. A rotatable pinch roller
23
f
transferring the magnetic tape
23
a
to the right and to the left via a tape feeding belt
23
g
is provided in the cartridge
23
in the cartridge
23
.
A magnetic head
24
and a transfer roller
25
are arranged in the apparatus
21
.
The loading operation for loading the above-mentioned cartridge
23
onto the apparatus
21
comprises first a step of manually inserting the leading end of the cartridge
23
through the insertion port
21
e
of the apparatus
21
in the arrow D direction.
The leading end of the bottom plate
23
c
of the cartridge
23
hits the stopper roller
22
b
of the leaf spring
22
.
When the cartridge
23
in this state is pushed into the apparatus by a stronger force, the base plate
23
c
of the cartridge
23
presses down the stopper roller
22
b
. As a result, the leaf spring
22
is deflected downward, and the stopper roller
22
b
comes into elastic contact with the lower side of the bottom plate
23
c.
When the cartridge
23
is further into the interior of the apparatus
21
, the roller
22
b
having been pushed down to the lower side of the base plate
23
c
is positioned at the notch
23
d
of the cartridge
23
, and goes up under the effect of a large elastic force of the leaf spring
22
to the notch
23
d
. Then, as shown in
FIG. 20A
, the stopper roller
22
b
comes into elastic contact with an end of the notch
23
d
. The stopper roller
22
b
presses the end of the notch
23
d
diagonally upward in the arrow C direction. The cartridge
23
comes into contact with a stopper (not shown) in the apparatus
21
to step there, and is loaded in the apparatus
21
.
At this point, the pinch roller
23
f
of the cartridge
23
is in pressure-contact with a transfer roller
25
in the apparatus
21
so as not to allow further incoming of the cartridge
23
into the apparatus
21
.
When the transfer roller
25
rotates in the pressure-contact state of the pinch roller
23
f
and the transfer roller
25
, the pinch roller
23
f
is rotated so as to permit transfer of the magnetic tape
23
a
to the right or to the left via the tape feeding belt
23
g
in the cartridge.
When the cartridge
23
is loaded in the apparatus
21
, it is possible to record or regenerate prescribed information onto the magnetic tape
23
a
by means of the magnetic head
24
through rotation of the transfer roller
25
in response to an instruction from an external computer (not shown) or the like.
The ejecting operation of the cartridge
23
from the apparatus
21
comprises manually and strongly pulling the rear end
23
e
of the cartridge
23
projecting outside the apparatus
21
as shown in
FIG. 19
in the arrow E direction. The stopper roller
22
b
escapes downward from the notch
23
d
of the cartridge
23
, thereby permitting removal of the cartridge
23
from the apparatus
21
.
In the conventional apparatus
21
as described above, however, in which engagement and disengagement of the cartridge
23
have been carried out manually, a considerable force (about 1.5 to 3 kgf) has been required for loading and unloading because of the large elastic force of the leaf spring, and it has been a hard work for a powerless person to carry out loading/unloading operation of the cartridge
23
.
When one pushes the cartridge
23
into the apparatus
21
by force, the front side of the cartridge often hit a stopper (not shown) in the apparatus, and caused a flaw or breakage of the both.
If a smaller elastic force of the leaf spring
22
is used to facilitate loading/unloading of the cartridge
23
, the holding force of the loaded cartridge
13
became insufficient, thus causing slippage of the pinch roller
23
f
in pressure-contact with the transfer roller
25
. This has resulted in unstable feed of the magnetic tape
23
a
, and has made it impossible to accomplish accurate recording or regeneration.
SUMMARY OF THE INVENTION
As first means for solving the aforementioned problems, the magnetic recording/regenerating apparatus of the present invention comprises an engagement section, a cartridge housing therein a magnetic tape, a first sliding member having a stopper section stopping the engagement section, a second sliding member connected to the first sliding member and causing the first sliding member to slide, and an enclosure permitting individual sliding of the first and the second sliding members; wherein the engagement section of the cartridge is stopped at the stopper section of the first sliding member so that the cartridge can be loaded or unloaded by causing the cartridge to slide under the effect of sliding of the first and the second sliding members.
As second means for solving the aforementioned problems, the magnetic recording/regenerating apparatus of the invention has a configuration in which a junction is provided in the second sliding member; a long-hole-shaped engagement section is longitudinally formed at the other end of said linking member; the junction of the second sliding member is movably engaged with the engagement section of the linking member to connect the linking member and said second sliding member; the linking member rotates under the effect of sliding of the second sliding member; and consequently, the junction of the second sliding member moves apart from the fulcrum of the linking member at the engagement section so that the rotation angle of the linking member to a line perpendicular to the sliding direction of the second
Ohkita Masao
Oka Mikio
Sonoda Katsunari
Alps Electric Co. ,Ltd.
Brinks Hofer Gilson & Lione
Tupper Robert S.
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