JP2600464B2 - Door opening and closing device for video decks - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door opening / closing device for a video deck or the like (hereinafter referred to as a door opening / closing device) that opens and closes a door of a video deck, an audio device, or the like electrically.

2. Description of the Related Art In recent years, there has been a demand for individualization of electric appliances such as video decks and audio equipment, so that design and operability have become more important, and doors have been opened and closed electrically.

This conventional door opening and closing device was as shown in FIG.

As shown in the figure, a door body 1 is pivotally mounted on a housing 2. The door body 1 is electrically opened and closed by a pinion 5 fixed to the motor 4 and a rack 6 fixed to the door body 1. An operation unit 3 is provided on the inner surface of the door main body 1, and can be operated by opening the door.

Problems to be Solved by the Invention In such a conventional door opening / closing device, when the door body 1 becomes large or the weight increases, the output of the motor 4 needs to be increased, and the pinion 5 and the rack 6 also become large. Because of the necessity of a product, the external appearance is degraded, and a lot of space is required.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and has as its object to provide a door opening / closing device for a video disk or the like that can reduce the load on a motor and further reduce the space.

Means for Solving the Problems In order to achieve the above object, a door opening / closing device for a video deck or the like according to the present invention is provided with a housing, and a door that is pivotally mounted on the housing and opens and closes the front surface of the housing downward. A connection plate A having one end pivotally attached to the door body, a connection plate B having one end pivotally attached to the other end of the connection plate A, and the other end pivotally attached to the housing; It comprises a slide plate that moves in parallel with the bottom surface, and a connection plate C that has one end pivotally attached to the other end of the connection plate B and the other end pivotally attached to the first slide plate.

An operation plate having an inclined surface at one end thereof to form a gap between the door body and the other end pivotally mounted on the upper portion of the door body so as to be freely slidably fitted in the door body; A sliding plate having an inclined surface at a front portion thereof, which comes into contact with the inclined surface of the operation plate at the time of a door and pushes up one end of the operation plate, is provided.

According to the door opening and closing device of the present invention, the link motion of the link composed of the three connecting plates A, B, and C is achieved by moving the slide plate back and forth by the driving source such as a motor. Can open and close the door body.

In particular, if the length of the connecting plate B is increased, the component force applied to the connecting plate A when closing the door body can be reduced,
By setting the length to a size suitable for the size and weight of the door body, the degree of freedom in design is increased and the load on the motor can be reduced.

Embodiment Hereinafter, an embodiment of the present invention will be described with reference to FIGS.

As shown in FIG. 1 and FIG.
It is pivotally attached to the front opening portion so that it can be opened and closed. One end of a connection plate A13 is pivotally attached to the door 11, and the other end of the connection plate A13 is pivotally attached to the other end of a connection plate B15, one end of which is pivotally attached to the bottom surface 14 of the housing 12. A connecting plate C16 is attached to the connecting portion between the connecting plates A13 and B15.
Is connected to the housing 12, and the other end of the connecting plate C16 is mounted on the slide plate 17 which slides back and forth by the power of a motor (not shown).

In the above configuration, in order to open the door body 11 from the state where the door body 11 is closed as shown in FIG.
17 is slid in the direction of arrow A, that is, forward.

As a result, the door body 11 is surrounded and opened by the link motion of the link composed of the connecting plate A13, the connecting plate B15, and the connecting plate C16, as shown by the arrow a, and the state shown in FIG. 2 is obtained. When closing the door body 11, the door body 11 can be closed by the reverse operation.

In this operation, if the length of the connecting plate C is changed in accordance with the size and weight of the door body 11, for example, if the connecting plate C15 is made longer, the connecting plate A13 becomes steeper to the left as shown in FIG. There is an effect that the component force of raising the door body 11 to close the door body 11 is reduced, the loss of the raising force can be reduced, and the output of the motor can be reduced.

3 and 4 show a second embodiment of the present invention,
An elongated hole 13a that is long in the sliding direction is formed in the connecting plate A at the shaft attachment portion between the door body 11 and the connecting plate A13.

In the above configuration, when the door body 11 is opened as shown in FIG. 4, when the door body 11 is completely opened, the long hole 13a of the connecting plate A13 is opened.
Slides the shaft 11a of the door body 11, and connects the connecting plate A13 and the connecting plate B1.
5, the connecting plate A13 is stored in the door body 11. Thereby, since the connecting plate A13 cannot be seen from the side surface of the door main body 11, the external appearance is improved.

FIGS. 5 to 7 show a third embodiment of the present invention. An operation plate 18 for operating a video deck or the like is provided on the inner surface of the door body 11.
Is fitted on the shaft 11b on the upper part of the door main body 11 with one end thereof being pivoted. At the other end of the operation plate 18, an inclined surface 18a that forms a gap G with the inner surface of the door body 11 is formed. In addition, an inclined surface 17a which comes into contact with the inclined surface 18a of the operation plate 18 and pushes up the inclined surface 18a when the door body 11 is opened is provided near the front portion of the slide plate 17.

In the above configuration, when the door body 11 is opened, in the process,
As shown in FIG. 6, the inclined surface 17a of the slide plate 17 is
8 when it comes into contact with the inclined surface 18a and the door body 11 is fully opened.
As shown in FIG. 7, the inclined surface 17a of the slide plate 17 is
The 8 inclined surface 18a is pushed up to raise the rear end of the operation plate 18.

Thereby, the operation plate 18 is held in a slightly inclined state in the door main body 11, and there is an effect that the operation of the operation plate 18 becomes easy.

8 and 9 show a fourth embodiment of the present invention.
When the door body 11 opens, the damper 19 that operates when the door
It is attached to.

With the above configuration, the door body 11 opens in a state where the load of the damper 19 is applied, so that the door body 11 is heavy when the door body 11 is heavy.
There is an effect that the opening and closing speeds of the eleventh can be equalized.

10 and 11 show a fifth embodiment of the present invention,
An elastic body 20 that operates when the door body 11 is opened is attached to a shaft attachment portion of the connection plate B15.

The operation of the above configuration is the same as that of the fourth embodiment.

Advantageous Effects of the Invention As is clear from the above description of the embodiment, according to the present invention, the slide plate is moved back and forth by the drive source such as the motor, and the link mechanism including the three connection plates A, B, and C is provided. Since the door body is opened and closed by the link motion, the component force applied to the connecting plate A can be reduced by the length of the connecting plate B, and the connecting plate B is set to a length suitable for the size and weight of the door body. By doing so, the degree of freedom of design is increased, and the load on the motor can be reduced.

Also, when the lid is opened, the inclined surface at one end of the operation plate fitted on the inner surface of the door body is brought into contact with the inclined surface formed at the front portion of the slide plate, and the operation plate is slightly inclined forward in the door body. Since the operation plate is held, the operation of the operation plate can be facilitated.

As described above, it is possible to provide a door opening / closing device such as a video deck that can reduce the load on the motor, reduce the space, and improve the operability of the operation plate.

[Brief description of the drawings]

1 to 11 are side sectional views of a video deck according to an embodiment of the present invention. FIGS. 1 and 2 show the state of the first embodiment of the present invention when the door is closed and when the door is open. Figures shown respectively, third
FIGS. 4A and 4B show the state of the second embodiment when the door is closed and the door is opened, respectively. FIGS. 5 to 7 show the third embodiment when the door is closed, when the door is being opened and when the door is open. FIGS. 8 and 9 show the states at the time of door opening, FIGS. 8 and 9 show the states at the time of closing and opening of the fourth embodiment, respectively, and FIGS. 10 and 11 show the fifth embodiment. FIG. 12 is a view showing the state of the example when the door is closed and the state when the door is opened. FIG. 11 ... door body, 12 ... housing, 13 ... connecting plate A, 13a ...
Slot, 14 Bottom, 15 Connection plate B, 16 Connection plate C,
17 ... slide plate, 17a, 18a ... inclined surface, 18 ... operation plate, 19 ... damper, 20 ... elastic body, G ... gap.

Claims (5)

(57) [Claims] 1. A housing, a door body pivotally mounted on the housing and a front surface of the housing opened and closed with a front opening, a connecting plate A having one end pivotally mounted on the door body, and a connecting plate A A connecting plate B having one end pivotally attached to the other end thereof and the other end pivotally attached to the housing; a slide plate moving parallel to the bottom surface of the housing; and one end pivotally attached to the other end of the coupling plate B. A door opening / closing device for a video deck or the like comprising a connecting plate C having the other end pivotally attached to the first slide plate. 2. The connecting plate A, which is axially mounted on the door body, has a shaft hole formed in the sliding direction of the connecting plate A.
A door opening / closing device for the described VCR. 3. An operation plate fitted at one end with an inclined surface forming a gap between itself and the door main body, and with the other end pivotally mounted on the upper part of the door main body so as to be freely slidable. The door opening / closing device for a video deck or the like according to claim 1 or 2, further comprising: a slide plate having an inclined surface which comes into contact with the inclined surface of the operation plate when the door is opened and pushes up one end of the operation plate at a front portion thereof. 4. The door opening / closing device for a video deck or the like according to claim 1, wherein a damper that operates when the door is opened is attached to the slide plate. 5. The door opening / closing device for a video deck or the like according to claim 1, wherein an elastic body resilient at the time of opening the door is attached to the connecting plate B.