JP2001148185A - Door lock device for recording medium and electronic equipment using the lock device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a door that opens and closes the loading/unloading port of a recording medium from being inadvertently opened, and accordingly also to inhibit an ejecting operation when the door is locked. SOLUTION: A video cassette recorder has a loading/unloading port 22 where a cassette is loaded and unloaded, a door 30 which opens and closes the port 22, an ejection operating part 40, which is operated when the cassette is removed from the port 22 and a regulation operating part 60 which is operated, when the opening of the door 30 and the operation of the part 40 are regulated. The part 60 includes a rotation operating part 62 and a regulation member 64 which rotates as a single body with the part 62. The member 64 has a 1st regulation part 74, which touches the door 30 to regulate the opening of this door and a 2nd regulation part 76, which touches the part 40 to regulate the operation of this part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door lock device for a recording medium capable of locking a door for opening and closing a slot for inserting and removing a recording medium such as a video cassette, and a video cassette recorder (VCR) using the same. )).

[0002]

2. Description of the Related Art For example, taking a vehicle-mounted VCR as an example,
In some cases, the apparatus main body of this in-vehicle VCR is placed vertically, and in this case, the insertion / removal opening of the video cassette is arranged on the upper surface of the apparatus main body.

The insertion / removal opening of the apparatus main body is usually closed by a cassette door (also referred to as a dust cover) which is urged by a spring so that dust and foreign matter do not enter the internal equipment. This cassette door
When the cassette is inserted, it is pushed and opened by the cassette, and is closed after the cassette is inserted. In ejecting the video cassette, the cassette door is opened by the internal video deck so that the video cassette can be taken out.

[0004]

As described above, the VCR
In particular, when the product is placed vertically,
The cassette door could be pushed open by its own weight and mixed into the device. Once a foreign substance has entered the inside of the device, it is extremely difficult to remove it through a narrow insertion / removal opening, which may cause a failure.

Also, since the cassette door is normally urged to be always closed by a spring,
A child pushes the cassette door open and mixes in foreign matter,
Alternatively, a finger was sometimes inserted into the cassette door.

Accordingly, an object of the present invention is to prevent a door for opening and closing a recording medium from being opened and closed inadvertently, thereby preventing entry of foreign matter, mischief of a child, and the like. An object of the present invention is to provide an apparatus and an electronic device using the same.

[0007]

According to one embodiment of the present invention, there is provided a door lock device for a recording medium, wherein a recording medium is inserted / removed, an opening / closing door for opening / closing the recording medium, and a recording medium inserted / removed from the opening. It is characterized by having an eject operation unit operated when the user is separated, and a regulation operation unit operated when restricting the opening of the door and the operation of the eject operation unit.

According to one aspect of the present invention, when the restricting operation section is operated when it is desired to restrict the opening and closing of the door for opening and closing the recording medium, the door is restricted from being opened. Thus, a child lock function that can prevent foreign substances from being mixed and prevent mischief of children can be achieved. In addition, when the restricting operation unit is operated, the operation of the eject operation unit can be restricted together with the door opening restriction.
Therefore, it is possible to prevent the recording medium from being ejected at the time of restricting the door from opening and colliding with the closed door.

In one embodiment of the present invention, a first restricting portion that contacts the door to restrict the opening of the door and a second restricting portion that contacts the eject operating portion and regulates the operation of the eject operating portion are provided. , Can be provided in the regulation operation unit. in this case,
When the restricting operation section moves to the first position, the first and second restricting sections are arranged at respective positions that can contact the door and the eject operation section. Further, when the regulation operation unit moves to the second position, the regulation by the first and second regulation units is released.

[0010] Here, the regulating operation section can have either a rotation operation section or a slide operation section. With this configuration, the first and second restricting portions can be rotated or slid between the first and second positions by operating the rotation operation portion or the slide operation portion.

According to another aspect of the present invention, there is provided a door lock device for a recording medium in which a recording medium is inserted and removed, a door which opens and closes the opening, and a door which is operated in first to third directions. And a regulating member that regulates operation of the operation unit in the third direction when the operation unit is operated in the first direction. Here, the operation unit is operated in the first direction when regulating the opening of the door, and is operated in the second direction opposite to the first direction when canceling the regulation of the opening of the door. When detached from the insertion opening, the operation is performed in a third direction different from the first and second directions. The operation unit includes a regulating unit that regulates opening of the door when operated in a first direction and cancels the opening regulation of the door when operated in a second direction. And a restricted portion whose movement in the third direction is restricted by the restricting member when performed.

According to another aspect of the present invention, the functions of the eject operation section and the restriction operation section described above can be combined with the operation section, and the number of components can be reduced.

Still another embodiment of the present invention is an electronic device having the above-described door lock device for a recording medium. This electronic device has a child lock function and prevents entry of foreign matter through an insertion / removal opening. Therefore, the cause of failure can be reduced.

[0014]

Embodiments of the present invention will be described below with reference to the drawings.

(First Embodiment) FIGS. 1 and 2 are schematic sectional views of a front portion of a video cassette recorder according to a first embodiment of the present invention. FIG. 1 shows a state where the video cassette can be ejected, and FIG. 2 shows a state where the cassette door of the video cassette is locked.

1 and 2, a video cassette recorder chassis 10 has a video cassette deck (not shown) mounted thereon. On the front of this chassis 10,
The face plate 20 is fixed. In the upper half area of the face plate 20, a cassette insertion / removal opening 22 through which a video cassette is inserted / removed is opened. In order to open and close the cassette insertion / removal opening 22, a cassette door 30 swingable in the direction of arrow A in FIG. The cassette door 30 is constantly urged in a closing direction by a spring (not shown).

[0017] Cassette slot 2 of face plate 20
A cassette guide 24 protruding toward the chassis 10 is provided at a lower portion of 2. This cassette guide 2
At the base end of No. 4, a notch 24A penetrating vertically is formed.

In the lower area of the face plate 20, an eject operation section 40 is supported so as to be able to be pushed. After the eject operation section 40 is inserted into the boss 26 provided on the face plate 20, the tip of the boss 26 is welded to form a welded section 26A.
Fixed to 0.

A push lever 42 protruding toward the chassis 10 is provided on the back of the eject operation section 40. When the eject operation unit 40 is pushed, the eject operation unit 40 and the push lever 42 are turned around the boss 26 in the direction of arrow B in FIG.

An eject switch 52 fixed on a printed circuit board 50 is disposed below the eject lever 42. When the eject operation unit 40 is pushed,
The eject switch 52 is operated via the push lever 42.

The cassette door 30 and the eject operation section 40
Between the respective arrangement areas, the regulation operation section 6 for regulating the opening of the cassette door 30 and the operation of the eject operation section 40.
0 is provided. The regulating operation unit 60 is exposed to the front side of the face plate 20 and operated, and the rotation operation unit 62 is moved integrally with the rotation operation unit 62 on the back side of the face plate 20 to open the door 30. And a regulating member 64 for regulating the like. After the regulating member 64 is inserted into the boss 62A provided on the rotation operating section 62, the regulating operation section 60 welds the distal end of the boss 62A to the welding section 62.
By setting B, it is fixed to the face plate 20.

FIG. 1 shows a non-restricted state by the restriction operation unit 60, and FIG. 2 shows a restriction state by the restriction operation unit 60.
, The rotation angle of the rotation operation unit 62 is different by 90 °. The longitudinal direction of the restricting member 64 is set in the vertical direction in the restricting state shown in FIG. 2, and is set in the horizontal direction in the non-restricting state shown in FIG. In the regulation state shown in FIG. 2, a part of the regulation member 64 projects upward through a notch 26 </ b> A provided at the base end of the cassette guide 24.

FIGS. 3A to 3C show details of the regulating member 64.
Shown in FIG. 3A is a front view of the regulating member 64 in the regulating state of FIG.
3 (B) and 3 (C) are an AA sectional view and a BB sectional view of FIG. 3 (A). An intermediate point 72 between the boss insertion holes 70 and 71 shown in FIG. As shown in FIG. 2, the regulating member 64 contacts the cassette door 30 and regulates the opening of the cassette door 30, and the ejecting operation unit 40 contacts the eject operation unit 40. A second regulating unit 76 for regulating the operation.

On the surface of the regulating member 64, for example, three projections 78, 79A, 79B are provided. The projection 78 is elastically deformable by being provided at the tip of a movable piece 78A whose periphery is cut out as a notch 78B.

The projections 78, 79A, 79B are in sliding contact with the inner wall surface of the face plate 20 when the rotary operation part 62 moves integrally with the regulating member 64 in accordance with the rotation operation, and provides an appropriate frictional resistance. When the restricting member 64 reaches the restricting position (first position) shown in FIG. 2, the protrusion 78 is formed in the concave portion 28 formed on the inner wall of the face plate 20.
Is elastically fitted to give the operator a click feeling and set the rotation stop position.
When the regulating member 64 reaches the non-regulating position (second position) shown in FIG. 1, another concave portion (not shown) into which the projection 78 is fitted is provided on the inner wall surface of the face plate 20. ing. In addition, a protrusion similar to the protrusions 79A and 79B may be provided on the surface of the rotation operation unit 62 facing the surface of the face plate 20.

In the first embodiment of the present invention having such a structure, when a video cassette is stored in the video cassette deck mounted on the chassis 10, the cassette door 30 is closed. When the video cassette is ejected, the rotation operation unit 62 is set to the non-restricted position (second position) shown in FIG. At this time, since the longitudinal direction of the regulating member 64 is set in the horizontal direction, both the cassette door 30 and the eject operation section 40 are in the non-regulated state.

In this unregulated state, the eject operation section 40
Is pushed, the eject switch 52 is turned on via the pushing lever 42. As a result, the video cassette deck in the chassis 10 drives the cassette door 30 to be opened by a mechanism (not shown) and ejects the video cassette. When the video cassette is detached from the cassette insertion slot 22, the cassette door 30 is closed by a spring (not shown).

On the other hand, there are cases where the user does not want to open the cassette door 30 regardless of whether the video cassette is inserted into the video tape recorder or not. One example is a case where it is desired to have a child lock function for preventing a child or the like from pushing and opening the cassette door 30 to insert a finger or other foreign matter during recording or reproduction. Another example is a case where the video tape recorder for vehicle use is placed vertically with the face plate 20 facing upward. Even if the foreign matter falls, the cassette door 30 is pushed open and the foreign matter enters the chassis 10. If you want to prevent.

In such a case, the rotation operation section 62 is set at the restriction position (first position) shown in FIG. At this time, as shown in FIG. 2, the longitudinal direction of the regulating member 64 is set in the vertical direction. Thus, the first regulating portion 74 at the upper end of the regulating member 64 faces the back surface of the lower end of the cassette door 30, and the second regulating portion 76 at the lower end of the regulating member 64 faces the back surface of the upper portion of the eject operation portion 40. I do. Therefore, the opening of the cassette door 30 is regulated by the first regulating section 74, and the pushing operation of the eject operation section 40 is regulated by the second regulating section 76.

As described above, since the opening of the cassette door 30 is regulated, the above-described child lock function and foreign matter entry preventing function can be achieved. In addition, since the operation of the eject operation section 40 is disabled in conjunction with the restriction on the opening of the cassette door 30, it is possible to prevent the video cassette in the middle of the ejection from colliding with the closed cassette door 30.

(Second Embodiment) FIGS. 4 and 5 are schematic sectional views of a front portion of a video cassette recorder according to a second embodiment of the present invention. FIG. 4 shows a state in which the video cassette can be ejected. FIG. 5 shows a cassette door locked state of the video cassette. FIG. 6 is a perspective view showing an eject operation unit 100, a slide operation unit 110, and a holder plate 120 used in the second embodiment.

In the second embodiment, a slide operation unit 110 which can be slid in the vertical direction in FIGS. 5 and 6 is used instead of the rotary operation unit 62 shown in the first embodiment. The operation unit 110 to the face plate 20
The holder plate 120 is used to hold the plate.

The eject operation unit 100 used in the second embodiment is functionally the same as the eject operation unit 40 used in the first embodiment, and has a base plate 102 and a chassis 10
And a pushing lever 104 extending toward the side. The eject operation portion 100 is formed by welding the tip of the boss 26 inserted into the boss insertion holes 106A and 106B formed in the base plate 102 to form the welding portion 26A.
It is fixed to the face plate 20.

The eject operation section 100 includes a base plate 102 disposed inside the face plate 20.
Projected regulated portions 108A, 108 projecting from the back surface of
B is provided at, for example, two places.

The slide operation section 110 has a knob 114 protruding from the surface of the base plate 112. When the slide operation unit 110 is set at the non-restricted position shown in FIG. 1, the base plate 112 has two notches 116A, 116B. The slide operation unit 110 is connected to the base plate 11.
2 functions as a first restricting portion 110A, and a lower end portion below the notches 116A and 116B is a second restricting portion 1A.
Functions as 10B.

The holder plate 120 has four bosses (not shown) projecting from the inner wall surface of the face plate 20.
Boss insertion holes 122A to 122D that are inserted through the boss, and the tip of the boss is a welding portion 26B. Thus, the slide operation unit 110 is sandwiched between the face plate 20 and the holder plate 120.

The holder plate 120 has a claw member 124 for elastically pressing the slide operation section 110 toward the face plate 20 side. Incidentally, similarly to the first embodiment, the claw member 12 of the holder plate 120 is provided on the back surface of the base plate 112 of the slide operation unit 110.
4 can be provided with a recess.

In the second embodiment, when the video cassette is ejected, the slide operation 110 is set to the non-restricted position (second position) shown in FIG. At this time, the first regulating unit 1 at the upper end of the slide operation unit 110
Since 10A does not interfere with the cassette door 30, the cassette door 30 can be freely opened and closed. Also, in FIG. 4, the regulated parts 108A, 108B of the eject operation part 100 are shown.
Are notches 116A, 116B of the slide operation unit 110
And is facing. Therefore, the eject operation unit 100 can be rotated in the direction of arrow B in FIG. 4, and the ejectable state is secured.

On the other hand, in order to lock the cassette door 30 and make it impossible to eject the cassette door 30, the slide operation unit 110 needs to be operated as shown in FIG.
Is slid to the restriction position (first position) shown in FIG. At this time, since the first restricting portion 110A at the upper end of the slide operation portion 110 is set at a position where it interferes with the cassette door 30, the opening of the cassette door 30 is restricted.

In FIG. 5, the eject operation unit 100
The regulated sections 108A and 108B of the slide operation section 11
0 of the base plate 112 (the second restricting portion 110
B). Therefore, the eject operation unit 100
5 is rotated in the direction indicated by arrow B in FIG.
In the state shown in FIG.
8A and 108B interfere with the second restricting portion 110B of the slide operating portion 110, and the pushing operation thereof is restricted.

(Third Embodiment) FIGS. 7 and 8 are schematic sectional views of a front portion of a video cassette recorder according to a third embodiment of the present invention. FIG. 7 shows a state in which the video cassette can be ejected. FIG. 8 shows a cassette door locked state of the video cassette. FIG. 9 shows an eject / eject system used in the third embodiment.
FIG. 3 is a perspective view showing a slide operation unit 200 and a holder plate 250.

In the third embodiment, instead of the eject operation unit 100 and the slide operation unit 110 used in the second embodiment, a one-piece eject / slide operation unit 200 having these two functions is used. Is used.
Therefore, the eject / slide operation unit 200
Are directed upward (first direction) in FIGS. 7 and 8 during the regulation operation, downward (second direction) during the regulation release operation,
B direction (third direction) shown in FIG. 4 during eject operation
Respectively.

The eject / slide operation unit 200 used in the third embodiment includes a first base plate 202, a second base plate 204 extending above a step 202A at the upper end thereof, and a first base plate 202. A third base plate 206 extending downward from the step portion 202B at the lower end.

The first to third base plates 20
Reference numerals 2, 204, and 206 function as guide surfaces when the eject / slide operation unit 200 slides by contacting the inner wall surface of the face plate 20.

A knob 210 is formed on the front surface of the first base plate 202, and a push lever 212 extending toward the chassis 10 is formed on the back surface thereof.

The upper end of the second base plate 206
When the eject / slide operation unit 200 moves to the regulation position (first position) shown in FIG. 8, it functions as the regulation unit 220 facing the lower end of the cassette door 30. Further, on the back surface of the second base plate 204, a regulated portion 222 protruding is provided. This regulated portion 222
When the eject / slide operation unit 200 moves to the regulation position (first position) shown in FIG.
Is arranged in the cutout portion 24A (restriction member) formed in
The eject / slide operation unit 200 is moved by the arrow B shown in FIG.
Is prevented from being pivoted in the direction.

At both ends of the third base plate 206,
Mounting pieces 230A and 230B extending upward are formed. The attachment pieces 230A and 230B are sandwiched between the face plate 20 and the holder plate 250, and function to attach the eject / slide operation unit 200 to the face plate 20.

The holder plate 250 has four bosses (not shown) projecting from the inner wall surface of the face plate 20.
Has boss insertion holes 250A to 250D inserted into the boss.
Further, a central region of the upper end portion of the holder plate 250 is cut out, and a first notch 252 is formed.

Legs 254A and 254B are formed on both sides of the lower end of the holder plate 250 so as to extend downward, and claw members 256A and 256B are formed at the lower ends thereof. A second notch 258 is provided between the two legs 254A, 254B. As shown in FIG. 7, the push lever 212 of the eject / slide operation unit 200 extends through the second notch 258 toward the chassis 10.

The two claw members 256A and 256B of the holder plate 250 move the eject / slide operation unit 200 when the eject / slide operation unit 200 moves to the unregulated position (second position) shown in FIG. The concave portion 23 formed on the back surface of the third base plate 206 of FIG.
2A and 232B (only one of them is shown in FIGS. 7 and 8). Note that two claw members 2
56A and 256B are the eject / slide operation units 20.
When 0 moves to the regulation position (first position) shown in FIG. 8, it is elastically fitted to the lower end of the third base plate 206 of the eject / slide operation section 200.

In the third embodiment, when the video cassette is ejected, the eject / slide operation 200 is set to the non-restricted position (second position) shown in FIG. At this time, the eject / slide operation unit 20
Since the regulating portion 220 at the upper end of the zero does not interfere with the cassette door 30, the cassette door 30 can be freely opened and closed. In FIG. 7, the restricted portion 222 of the eject / slide operation portion 200 is provided with the notch 2 at the base end of the cassette guide 24.
4A, and faces the first notch 252 of the holder plate 250. Therefore, the eject / slide operation unit 200 can be rotated in the direction of the arrow B in FIG. 7, and the ejectable state is secured.

On the other hand, in order to lock the cassette door 30 and make it impossible to eject, the eject / slide operation 2 is performed.
00 is slid to the regulation position (first position) shown in FIG. At this time, the eject / slide operation unit 2
Since the regulating portion 220 at the upper end of 00 is set at a position that interferes with the cassette door 30, the opening of the cassette door 30 is regulated. In FIG. 8, the regulated portion 222 of the eject / slide operation unit 200 is inserted into the notch 24 </ b> A (regulating member) at the base end of the cassette guide 24. Therefore, the eject / slide operation unit 200 is pushed and moved, as shown in FIG.
, The pushing operation is restricted.

While the first to third embodiments of the present invention have been described above, the present invention is not limited to these embodiments, and various modifications may be made within the scope of the present invention. Is possible. For example, the present invention is not limited to the one applied to a video cassette recorder, and the present invention can be applied to various other electronic devices having a door for opening and closing a recording medium insertion / removal unit. For example, a video cassette player, a magnetic tape cassette It is also applicable to recorders and players.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view showing a non-regulated state of a door lock device according to a first embodiment of the present invention.

FIG. 2 is a schematic sectional view showing a restricted state in the door lock device according to the first embodiment of the present invention.

FIGS. 3A to 3C are a front view, a sectional view taken along the line AA of a regulating member used in the door lock device shown in FIGS.
It is BB sectional drawing.

FIG. 4 is a schematic sectional view showing a non-restricted state in a door lock device according to a second embodiment of the present invention.

FIG. 5 is a schematic sectional view showing a restricted state in a door lock device according to a second embodiment of the present invention.

FIG. 6 is a schematic perspective view of an eject operation unit, a slide operation unit, and a holder plate used in a second embodiment of the present invention.

FIG. 7 is a schematic sectional view showing a non-regulated state in a door lock device according to a third embodiment of the present invention.

FIG. 8 is a schematic sectional view showing a restricted state in a door lock device according to a third embodiment of the present invention.

FIG. 9 is a schematic perspective view of an eject / slide operation unit and a holder plate used in a third embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Chassis 20 Face plate 22 Cassette insertion / removal opening 24 Cassette guide 24A Notch (restriction member) 26 Boss 26A, 26B Welding part 28 Concave part 30 Cassette door 32 Axis 40 Eject operation part 42 Push lever 50 Printed circuit board 52 Eject switch 60 Regulation Operation part 62 Rotation operation part 62A Boss 62B Welding part 64 Restriction member 70, 71 Boss insertion hole 72 Center of rotation 74 First restriction part 76 Second restriction part 78 Projection part 78A Notch part 78B Moving piece 79A, 79B Projection part 100 Eject operation section 102 Base plate 104 Push lever 106A, 106B Boss insertion hole 108A, 108B Regulated section 110 Slide operation section 110A First regulation section 110B Second regulation section 112 Base plate 114 Knob 116A, 1 6B Notch portion 120 Holder plate 122A-122D Boss insertion hole 124 Claw member 200 Eject / slide operation portion 202 First base plate 202A, 202B Step portion 204 Second base plate 206 Third base plate 210 Knob 212 Push lever 220 Regulator 222 Regulated portions 230A, 230B Mounting pieces 232A, 232B Concave portions 250 Holder plates 250A to 250D Boss insertion holes 252 First cutouts 254A, 254B Legs 256A, 256B Claw members 258 Second cutouts

Claims (6)

[Claims] An opening for opening and closing the recording medium; an opening and closing door for opening and closing the recording medium; an eject operation unit operated when the recording medium is detached from the insertion opening; A door lock device for a recording medium, comprising: a restriction operation unit that is operated when restricting operation of the eject operation unit. 2. The ejector according to claim 1, wherein the restricting operation section is configured to contact the door and restrict opening of the door, and to contact the eject operation section to operate the eject operation section. And a second restricting portion for restricting the pressure, wherein the first and second restricting portions can contact the door and the ejecting operation portion when the restricting operation portion moves to the first position. A door lock device for a recording medium, which is disposed at each position, wherein the restriction by the first and second restriction units is released when the restriction operation unit moves to the second position. 3. The regulating operation unit according to claim 2, wherein the regulating operation unit has a rotation operation unit, and the first and second regulating units are moved by the operation of the rotation operation unit.
A door lock device for a recording medium, which is rotatably moved between two positions. 4. The regulating operation unit according to claim 2, wherein the regulating operation unit has a sliding operation unit, and the first and second regulating units are slid between the first and second positions by operating the sliding operation unit. A recording medium door lock device which is moved. 5. An insertion / removal opening through which a recording medium is inserted / removed, a door for opening / closing the insertion / removal opening, and a first direction for restricting opening of the door;
When the door opening restriction is released, the door is operated in a second direction opposite to the first direction, and differs from the first and second directions when the recording medium is removed from the insertion opening. An operation unit that is operated in a third direction; and a regulating member that regulates operation of the operation unit in the third direction when the operation unit is operated in the first direction. A regulating unit that regulates opening of the door when operated in the first direction, and releases regulation of opening the door when operated in the second direction; A restricted portion whose movement in the third direction is restricted by the restricting member when operated in the first direction. 6. An electronic device comprising the recording medium door lock device according to claim 1.