JP2576540Y2 - Door opening and closing device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door opening / closing device provided on a front surface of a magnetic recording / reproducing device or the like.

[0002]

2. Description of the Related Art In recent years, many electronic devices such as VTRs have a design in which a front portion is covered with a large door so that a front portion is exposed only when necessary and a portion always exposed.

Hereinafter, a conventional door opening and closing device will be described with reference to the drawings. 5 and 6 are perspective views of a conventional video tape recorder (hereinafter, referred to as VTR) when a door is closed. Reference numeral 10 denotes a door whose lower end is rotatably supported by a VTR 14, reference numeral 11 denotes a display unit, and reference numeral 14 denotes a display unit. Is a VTR body. FIG.
Is a perspective view when the door is open, and 13 is a cassette insertion port.

Hereinafter, the operation will be described. 5, first, the door 10 is rotated in the direction of arrow a, and the door 10 is opened as shown in FIG. Then, the user inserts a cassette into the cassette insertion slot 13 and performs operations such as recording and reproduction.

[0005]

However, in the above configuration, as shown in FIGS. 5 and 6, the depth L1 of the VTR 14 when the door is closed is different from the depth L1 when the door is opened.
Of the VTR 14 has a length L3, and the depth of the entire VTR 14 is a dimension L3, which requires a very large space.

The present invention solves the above-mentioned problems, and provides a door opening / closing device capable of realizing space saving of a VTR.

[0007]

According to the present invention, there is provided a door opening and closing device for covering a front surface of a device provided with an insertion port into which an external member can be inserted. A lower door movably supported by a drive source; and an upper door rotatably supported by a support pin at an upper end of the lower door and provided so as to cover the insertion opening when the door is closed. The lower door pivots, and the upper door, which is rotatably supported by the lower door, moves so as to overlap with the lower door to open and close the door, and the amount of protrusion of the upper and lower doors when the door is opened. Is to be reduced.

[0008]

According to the present invention, it is possible to reduce the depth when the door is opened.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the door opening and closing device of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view of a VTR when a door is closed in this embodiment, FIG. 2 is a side view of the door when the door is closed, FIG. 3 is a perspective view when the door is opened, and FIG. 4 is a door when the door is opened. It is a perspective view of a part. In the figure, 1 is a VTR main body, 2 is an upper door integrally formed with a display unit such as a counter, 3 is a lower door, 4 is a cassette insertion slot, and 5 is a sliding part provided on the upper end side surface of the upper door 2. A slide groove movably engaged. The lower end of the upper door 2 and the upper end of the lower door 3 are rotatably supported by support pins 7. The lower end of the lower door 3 is also provided with a support pin 8 on the front of the VTR body 1.
And is driven by a built-in motor.

The operation will be described below. From the closed state shown in FIGS. 1 and 2, the operation of the motor incorporated in the VTR causes the lower door 3 to rotate in the direction of the arrow b around the support pin 8 and the upper door 2 and the lower door 3 to rotate. Since they are movably supported with each other, the upper door 2 moves downward while the support portion of the upper door 2 slides down the slide groove 5 in the downward direction.
Then, the door is opened as shown in FIGS. 3 and 4,
A cassette (not shown) is inserted into a cassette insertion slot 4 that appears when the upper door 2 moves downward, and recording and reproduction are performed.

When the door is closed, the lower door 3 is rotated about the support pin 8 in the direction of arrow c by the operation of the motor incorporated in the VTR from the open state of the door shown in FIGS. Since the upper door 2 and the lower door 3 rotatably support each other, the upper door 2 moves upward while the support portion of the upper door 2 slides the slide groove 5 upward. . And
The door is closed as shown in FIGS.

As described above, according to the embodiment, the front door of the VTR is constituted by two upper and lower doors so that the front door can be folded and opened and closed, so that the amount of protrusion of the door when the door is opened can be reduced. The depth dimension L4 of the VTR when the door is open can be configured without much difference compared to the depth dimension L1 when the door is closed.

[0014]

As described above, according to the present invention, since the front door of the VTR is composed of two upper and lower doors, which can be folded and opened and closed, the depth dimension of the VTR when the door is opened can be reduced by the conventional door opening. Since the size of the VTR can be reduced as compared with the depth dimension of the VTR, the space of the VTR can be saved.

[Brief description of the drawings]

FIG. 1 shows a VTR using a door opening / closing device according to an embodiment of the present invention.
Perspective view showing the door closed state

FIG. 2 is a side view of the door portion when the door is closed in the embodiment.

FIG. 3 is a perspective view showing a door open state of the VTR using the door opening / closing device in the embodiment.

FIG. 4 is a side view of the door portion when the door is opened in the embodiment.

FIG. 5 is a perspective view showing a VTR using a conventional door opening and closing device in a door closed state.

FIG. 6 is a perspective view showing a door open state of a VTR using a conventional door opening and closing device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 VTR 2 Upper door 3 Lower door 4 Cassette insertion slot 5 Slide part 6 Support part 7 Support pin 8 Support pin

────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shinji Makino 1006 Kazuma Kadoma, Kadoma City, Osaka Inside Matsushita Electric Industrial Co., Ltd. (56) References JP-A-1-122090 (JP, A) 175494 (JP, U) Shokai Sho 59-3603 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) G11B 33/02 502 G11B 33/02 301

Claims (1)

(57) [Scope of request for utility model registration] 1. A door opening / closing device for covering a front surface of a device provided with an insertion port into which an external member can be inserted, wherein the lower door is rotatably supported by a driving source below a front surface of the device.
An upper door rotatably supported at the upper end of the lower door and provided so as to cover the insertion opening when the door is closed, the drive source is driven to rotate the lower door, and the The upper door rotatably supported by the lower door is moved so as to overlap the lower door to open and close the door, and the amount of protrusion of the upper and lower doors when the door is opened is reduced. Door opening and closing device.