JPH0216470Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a door device applied to a cassette insertion opening for inserting a cassette into a recorder.

(Prior Art and its Problems) For example, many vehicle-mounted cassette tape recorders employ a method in which a cassette is inserted into the recorder through a cassette insertion opening, and in this case, a dustproof door is provided at the cassette insertion opening.

The dustproof door is generally supported by a shaft so that it can be opened and closed, and is biased in the closing direction.

On the other hand, a magnetic head placed inside the recorder,
Pinch rollers and the like occasionally require maintenance such as cleaning, but simple cleaning can be done by inserting a cotton swab or the like through the cassette insertion opening without disassembling the recorder.

However, in the case of a cassette insertion opening equipped with the above-mentioned door, the door is biased in the closing direction, so the cleaning operation requires opening the door with one hand.
You must use your other hand to operate the cotton swab, etc. The work was extremely complicated.

(Purpose of the invention) An object of the invention is to provide a door device for a cassette insertion opening that facilitates cleaning operations through the cassette insertion opening.

(Structure of the invention) The door device of the invention includes a door body which is pivotally supported in relation to a cassette insertion opening so as to be freely openable and closable, and which is always biased in a direction that blocks the cassette insertion opening, and a door body which is arranged in a predetermined direction. When the door body is at a position within the opening range, it can be displaced to a first position where it can be locked with the locked part of the door body, and when the door body is at a position other than the opening range, a locking means including a locking part that is displaced to a second position where it is not locked with the locked part; and a locking means that restricts displacement of the locking part to the first position. It consists of regulatory measures.

(Function) According to the configuration of the present invention, when the locking part of the locking means is in the second position, the conventional opening/closing operation of the door is allowed, and when the locking part is in the first position, the door is allowed to open and close as usual. is locked in the open position.

(Example) An example of the present invention will be specifically described based on the drawings. Figures 1 to 4 are views of the door device as seen from inside the vessel, figures a and b in each figure show a front view of the main part and a side view of the main part, respectively, and figures a and b respectively A perspective view of the recorder is shown.

Reference numeral 1 indicates the body of a vehicle-mounted cassette tape recorder, and a front panel 2 serving as an operation surface is provided with a cassette insertion opening 3. The shape of the cassette insertion opening 3 is the projected shape of a cassette 4 which is horizontally inserted into the vessel through the opening 3.

Reference numeral 5 denotes a cover that covers the continuous opening 6 connected to the cassette insertion opening 3, and can be attached to and removed from the front panel 2 using screws 7, 7. If this cover 5 is removed, the cassette can be inserted into the front panel 2. The opening 3 and the continuous opening 6 form a large opening.

The door 8 for opening and closing the cassette insertion opening 3 has a pivot shaft 9 rotatably mounted on the back surface of the front panel 2.
0 and 10, and is constantly biased in the closing direction by a spring 11. One end of a rotating shaft 9 that forms a door body together with the door 8 is bent at a substantially right angle, and the bent portion of this rotating shaft 9 forms a locked portion 12 of the door body.

13 is a locking piece formed of an elastic thin plate, one end of which is fixed to the back surface of the front panel 2 with a screw 14;
The other end is bent at a substantially right angle to form a locking portion 15. Reference numeral 16 denotes a protruding pin formed on the locking piece 13, and the tip of the protruding pin 16 is arranged so as to protrude into the continuous opening 6.

The operation will be explained below.

When the cover 5 is attached to the continuous opening 6, as shown in FIGS. 1 and 2, the protruding pin 16
Since the tip of the locking piece 13 comes into contact with the cover 5, the locking piece 13 is rotated clockwise, and the locking portion 1
5 is a second part that is not locked with the locked part 12 of the door body.
position, that is, outside the opening/closing rotation locus of the door body.

Therefore, in such a state, the opening of the door 8 against the bias of the spring 11 and the closing operation of the door 8 due to the bias can be freely performed.

On the other hand, when the cover 5 is removed, the tip of the protruding pin 16 is released from the restriction by the cover 5, so the locking piece 13 is rotated counterclockwise from the above-described clockwise rotated state. Then, the locking portion 15 is displaced toward the first position where it is locked with the locked portion 12 of the door body, that is, the position where it is located within the opening/closing rotation locus of the door body.

However, when the door 8 is in the closed position as shown in FIG. It does not reach the 1st position. Furthermore, from this state shown in FIG. 3, the door 8 is moved against the bias of the spring 11,
When the locked portion 12 opens to a position within a predetermined opening range that allows rotation of the locking piece 13, the locking portion 15 reaches the first position as shown in FIG.
The locking portion 12 of the door body is locked and the closing operation of the door 8 by the spring 11 is prohibited.

Note that if the cover 5 is removed while the door 8 is within the opening range, the locking piece 13 will rotate counterclockwise, the locking portion 15 will reach the first position, and the door body will be locked. do.

Therefore, when performing cleaning or the like, by removing the cover 5, a large opening is formed in the front panel 2, and the door 8 can be locked in the open position, which greatly improves the work efficiency.

Also, when this work is completed, cover 5
When the locking piece 13 is attached, the locking piece 13 is rotated clockwise, the locking part 15 is displaced to the second position, and the locked state between the locking part 15 and the locked part 12 is released. , the door 8 assumes the closed position by the bias of the spring 11, and the door 8 is again allowed to open and close freely.

Note that the present invention is not limited to the above-mentioned embodiments, and various methods can be used to regulate the displacement of the locking means, such as regulating the displacement of the locking means by the movement of an operating section provided on the front panel rather than by attaching or detaching the cover. In addition, the locked portion may be formed on the door other than the rotation shaft, and various other configurations may be adopted. It goes without saying that the device of the present invention can also be applied to general recorders that do not have continuous openings.

(Effects of the invention) According to the invention, it is possible to provide a door device for a cassette insertion opening that facilitates cleaning operations through the cassette insertion opening.

[Brief explanation of the drawing]

Figures 1 to 4 are views of one embodiment of the device of the present invention as seen from inside the vessel, and Figures a and b in each figure are front and side views of the main part, and Figures 5a and 5 are b shows an external perspective view of a recorder in which the embodiment device is incorporated. 1... Container body, 3... Cassette insertion opening, 4...
Cassette, 5...Cover, 6...Continuous opening, 8...
... Door, 9 ... Rotating shaft, 11 ... Spring, 12 ... Locked part, 13 ... Locking piece, 15 ... Locking part, 16
...Protruding pin.

Claims (1)

[Scope of Claim for Utility Model Registration] A door body that is pivotally supported in relation to a cassette insertion opening so as to be openable and closable and is always biased in a direction that blocks the cassette insertion opening; When the door body is in the position, it can be displaced to a first position where it can be locked with the locked part of the door body, and when the door body is in a position other than the opening range, the locked part a locking means having a locking part that is displaced to a second position where the locking part is in a non-latching state with the locking part; and a regulating means that restricts displacement of the locking part to the first position. A door device for a cassette insertion opening, characterized in that: