JP2000294948A - Opening/closing mechanism for covers - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an opening/closing mechanism for a covers which is capable of determining the opening/closing sequence of right and left covers and thus reliably sequencing their opening/closing operations, without breaking or damaging the covers, and which requires only one sensor for detecting the opening and closing. SOLUTION: In an opening/closing mechanism for an apparatus, having a plurality if covers determines the sequence of opening and closing these covers, this mechanism has a first cover 12, first lock means for locking the cover 12, a means for applying a force in the direction of opening the cover 12 at all times, a second cover 13, second lock means for locking the cover 13 and permits the second lock means to be operated under the condition in which the cover 12 is opened.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cover opening / closing mechanism of an apparatus having a plurality of covers, and more particularly to a mechanism for determining a cover opening / closing order.

[0002]

2. Description of the Related Art For example, in a conventional apparatus, FIG.
There is an apparatus having a plurality of covers to improve operability as shown in FIG. That is, in FIG. 13, 1 is a device having left and right covers, 2 is a left cover, and 3 is a right cover. The left cover 2 opens and closes frequently because there is work every day for turning on / off the device switch, attaching / detaching the floppy disk, and the like. Further, the right cover 3 is opened and closed only at the time of maintenance and only once a week or about once a month, which is infrequent. In such a case, operability is improved by providing the left and right covers and opening and closing the cover only to the minimum necessary. In addition, since the inside of the apparatus can be seen from the gap between the left and right covers, the overlap portion 3a is provided on the right cover 3, which is less frequently opened and closed, at the portion where the left cover 2 and the right cover 3 meet. In a cover having such a structure, first, the right cover 3 must be closed and fixed, and then the left cover 2 must be closed. If the order is incorrect, the cover may be broken or damaged. Further, a sensor 4 for detecting the opening and closing of the cover must be provided for each of the left and right covers, which has increased the cost.

[0003]

However, in the device having the above structure, first, as shown in FIG.
Then, the left cover 2 had to be closed, and then the left cover 2 was closed. If the order was wrong, the cover was broken or damaged. In addition, since the sensor 4 for detecting the opening and closing of the cover must be provided for each cover, there is a problem that the cost is increased.

The present invention has been made in view of such a conventional problem. By providing a mechanism for determining the order of opening and closing the left and right covers, the order of opening and closing the left and right covers is ensured, and the cover is opened. It is another object of the present invention to provide a cover opening / closing mechanism that does not break or damage the cover and requires only one sensor to detect the opening / closing of the cover.

[0005]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems and, in order to achieve the above object, in a device having a plurality of covers, the opening and closing of the covers for determining the order of opening and closing the covers. A first cover, first locking means for locking the first cover, means for constantly applying a force in a direction in which the first cover opens, a second cover, and a second cover. And a second locking means for locking the second cover. The second locking means of the second cover can be operated by opening the first cover.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention is applicable to an apparatus having a plurality of covers, and in particular, an apparatus having two covers will be described in detail with reference to the drawings. In addition,
In the embodiment of the present invention, the same components as those of the related art are denoted by the same reference numerals.

[First Embodiment] FIG. 1 is a plan view showing a first embodiment of the present invention, FIG. 2 is a front view showing a state in which a cover is closed, and FIG. BB arrow sectional view,
FIG. 4 is a cross-sectional view taken along the line CC of FIG. 2, and FIG.
FIG. 6 is an explanatory diagram of the operation in the cross-sectional view taken along the arrow B. FIG.
It is operation | movement explanatory drawing in C arrow sectional drawing.

1 to 4, reference numeral 1 denotes an apparatus having two covers. Reference numeral 12 denotes a first cover, which can be opened and closed around a left fulcrum 18. Reference numeral 4 denotes a sensor for detecting opening and closing of the first cover 12. 12a is the first
Are recesses provided in the cover 12. Reference numeral 13 denotes a second cover attached to the front of the unit 15. 13a is a window provided on the second cover 13. Units 14 and 15 are mounted on the apparatus 1. Reference numeral 16 denotes a spring attached to a shaft 18 which is a center of rotation of the first cover 12, and constantly applies a force in a direction in which the first cover 12 opens (rightward rotation) in FIG. 17 is a second locking means 30 of the second cover 13 by opening the first cover 12.
It is a bracket that enables operation.

In FIG. 4, reference numeral 19 denotes a depression 12a of the cover 12.
It is a handle provided in the section. Reference numeral 20 denotes a lock lever that locks the first cover 12 interlocked with the handle 19, and the lock lever 20 constantly receives a rotational force in a lock (clockwise) direction by a spring 22 attached to a shaft 21 that is a center of rotation. It hits the stopper 23.
Reference numeral 24 denotes a bracket for the lock lever 20 and a second cover 13.
It is attached to. Reference numeral 25 denotes a pin which moves while being regulated by the guide 28 in the left-right direction by the bracket 17. 2
Reference numeral 6 denotes a closing plate that opens and closes a window 13a provided in the second cover 12 in conjunction with the pin 25. A spring 27 urges the closing plate 26 toward the bracket 17 so that the window 13a is always open. Reference numeral 30 denotes second locking means for fixing the second cover 13 attached to the unit 15.

Next, the operation will be described. In the device 1 configured as described above, FIG. 1 shows the first cover 12 and the second cover 13 in an open state. Figures 2, 3, 4
Indicates that the first cover 12 and the second cover 13 are closed. First, an operation of closing both covers in FIG. 1 when both covers are open will be described. First cover 12
When the first cover 12 is to be closed, the first cover 12 is opened by the spring 16 (clockwise rotation).
Force is always applied in the direction. In addition, even if an attempt is made to lock in the closed state, since the second cover 13 is in the open state, it cannot be locked because there is no metal fitting 24. Therefore, the second cover 13 attached to the unit 15 is pushed.

When the second cover 13 attached to the unit 15 is pushed, it is fixed at a predetermined position by the second lock means 30. This state is shown in FIGS. Next, the first
When the cover 12 is to be held in the closed state, the second cover 13 is now fixed in the closed state by the second locking means 30, so that the receiving metal fitting 24 attached to the second cover 13 The lock lever 20 is fixed, and the first cover 12 is fixed in a closed state. At this time, lock lever 2
Numeral 0 denotes a spring 22 attached to a shaft 21 which is the center of rotation, and is automatically engaged with the receiving metal fitting 24 because the spring 22 is constantly receiving a rotational force in the lock (clockwise) direction. This state is shown in FIG.

The bracket 17 attached to the first cover 12 pushes a pin 25 attached to the second cover 13 as shown in FIGS. Therefore, pin 2
5 moves rightward while being regulated by the guide 28. When moving to the right, the closing plate 26 integrally formed is similarly moved to the right. As a result, the closing plate 26 is
5, the window 13a provided on the cover 13 is closed.
At this time, the spring 27 urges the closing plate 26 toward the bracket 17 so that the window 13a is always open. That is, when the first cover 12 is closed after the second cover 13 is fixed in the closed state, the closing plate 26 closes the window 13a and disables the operation of the second locking means 30. I have. FIG. 3 and FIG. 4 show such a state.

Next, the operation of opening both covers from the closed state will be described. The operation of the second locking means 30 of the second cover 13 cannot be performed because the closing plate 26 closes the window 13a. Accordingly, the first cover 12 is opened, and when the handle 19 is moved forward (left-handed rotation) in FIG. 4, the lock lever 20 of the first cover 12 is interlocked and turns leftward against the spring 22. Then, the engagement with the receiving fitting 24 is released, and the spring 16 automatically opens as shown in FIG. At this time, as shown in FIG. 5, the pin 25 and the closing plate 26 pushed by the bracket 17 attached to the first cover 12 move from right to left by the force of the spring 27. As a result, the window 13a closed by the closing plate 26 is opened, and the second lock means 30 of the second cover 13 can be operated from the window 13a. The lock is released, and the second cover 13 attached to the unit 15 is pulled forward to open.

[Second Embodiment] FIG. 7 is a plan view showing a second embodiment of the present invention, FIG. 8 is a front view showing a state in which a cover is closed, and FIG. EE arrow sectional view,
10 is a sectional view taken along the line FF in FIG. 8, FIG. 11 is an operation explanatory view in a sectional view taken along the line EE in FIG. 8, and FIG.
It is operation | movement explanatory drawing in FF arrow sectional drawing.

The present embodiment is characterized in that a first cover 50 of the embodiment of the present invention described later is provided in the configuration of the first embodiment.

The closing plate 51 is directly attached to the first cover 50. When the first cover 50 is opened, the window 52a closed by the closing plate 51 is opened. The second locking means 30 of the cover 52 that opens second from the window 52a can be operated.

In FIGS. 7 to 10, reference numeral 1 denotes an apparatus having two covers. Reference numeral 50 denotes a first cover, which can be opened and closed around the left fulcrum 18. Reference numeral 4 denotes a sensor for detecting opening and closing of the first cover 50. 50a is a depression provided in the cover 50. 52 is a second cover attached to the front of the unit 15. 52 a is a window provided on the cover 52. Units 14 and 15 are mounted on the apparatus 1. Reference numeral 16 denotes a spring attached to the shaft 18, which is the center of rotation of the cover 50, and constantly applies a force in the direction in which the first cover 50 opens (clockwise) in FIG. Reference numeral 51 denotes a closing plate for closing a window 52a for operating the locking means 30 of the second cover 52, and is attached to the first cover.

In FIG. 10, reference numeral 19 denotes a depression 5 of the first cover.
This is a handle provided in the portion 0a. Reference numeral 20 denotes a lock lever of the first cover 50 interlocked with the handle 19, and the lock lever 20 receives a rotational force in the lock (clockwise) direction by a spring 22 attached to a shaft 21 which is a center of rotation. Is hitting. Reference numeral 24 denotes a bracket for the lock lever 20, which is attached to the second cover 52. Reference numeral 51 denotes a closing plate which opens and closes a window 52a for operating the locking means 53 of the second cover 52.

Reference numeral 30 denotes second locking means which is attached to the unit 15 and fixes the second cover 52.

Next, the operation will be described. FIG. 7 shows the first cover 50 and the second cover 52 in the opened state in the device 1 configured as described above. 8, 9, 1
0 indicates that the first cover 50 and the second cover 52 are closed. First, the operation of closing both covers in FIG. 7 when both covers are open will be described. First cover 5
When the first cover 50 is to be closed, a force is constantly applied to the first cover 50 in a direction in which the cover 50 is opened (clockwise rotation) by the spring 16. Even if an attempt is made to lock in the closed state, the lock cannot be performed because the lock lever receiving member 24 is provided on the second cover 52 in the open state. Therefore, the second cover 52 attached to the unit 15 is pushed.

When the second cover 52 attached to the unit 15 is pressed, it is fixed at a predetermined position by the second lock means 30. This state is shown in FIGS. next,
When the first cover 50 is to be held in the closed state, since the second cover 52 is now fixed in the closed state by the second locking means 30, the receiving bracket attached to the second cover 52 The lock lever 20 is fixed to 24. At this time, the lock lever 20 is rotated by the shaft
Lock (Right rotation) by spring 22 attached to
Since it is constantly receiving rotational force in the direction, it automatically engages with the receiving fitting 24. This state is shown in FIG.

The closing plate 51 attached to the first cover 50 closes a window 52a for operating the locking means 53 of the second cover 52. That is, the second cover 52
When the first cover 50 is closed after fixing the second lock means in the closed state, the closing plate 51 closes the window 52a and the operation of the second lock means 30 is disabled. FIGS. 9 and 10 show such a state.

Next, the operation of opening both covers from this closed state will be described. The operation of the second locking means 30 of the second cover 52 cannot be performed because the closing plate 51 has the window 52a closed. Therefore, the first cover 50 is opened, and when the handle 19 is turned forward (leftward rotation) in FIG. 10, the lock lever 20 of the first cover 50 rotates counterclockwise against the spring 22 in conjunction therewith. Then, the engagement with the receiving fitting 24 is released, and the spring 16 automatically opens as shown in FIG. At this time, as shown in FIG.
The window 52a, which has been in the closed state, is opened by the closing plate 51 attached to the second cover 5, and the second cover 5 is moved from the window 52a.
The second lock means 30 can be operated. The lock is released, and the second cover 52 attached to the unit 15 is pulled forward to open.

As described above, the order of opening and closing the left and right covers is determined.

[0025]

As described above, according to the present invention, by determining the order of opening and closing the cover, the cover is not broken or damaged, and the opening and closing of the first cover is detected. Only one sensor 4 is required, and a low-cost cover opening / closing mechanism can be provided.

[Brief description of the drawings]

FIG. 1 is a plan view showing a first embodiment of the present invention.

FIG. 2 is a front view showing a state in which a cover of FIG. 1 is closed.

FIG. 3 is a sectional view taken along the line BB of FIG. 2;

FIG. 4 is a cross-sectional view taken along the line CC of FIG. 2;

FIG. 5 is an operation explanatory diagram in a cross-sectional view taken along the line BB of FIG. 2;

FIG. 6 is an operation explanatory view in a cross-sectional view taken along the line CC of FIG. 2;

FIG. 7 is a plan view showing a second embodiment of the present invention.

FIG. 8 is a front view showing a state in which a cover of FIG. 7 is closed.

9 is a sectional view taken along the line EE in FIG. 8;

FIG. 10 is a sectional view taken along the line FF in FIG. 8;

FIG. 11 is an operation explanatory view in a cross-sectional view taken along the line EE of FIG. 8;

12 is an operation explanatory view in a cross-sectional view taken along the line FF of FIG. 8;

FIG. 13 is a front view of a conventional device.

FIG. 14 is an explanatory view showing a defect of the conventional device.

[Explanation of symbols]

 Reference Signs List 1 device 4 sensor 12 first cover 13 second cover 16 spring 17 bracket 18 shaft 19 handle 20 lock lever 21 shaft 22 spring 23 stopper 24 receiving bracket 25 pin 26 closing plate 27 spring 28 guide 30 second locking means

Claims (1)

[Claims] 1. An apparatus having a plurality of covers, in a cover opening / closing mechanism for determining an opening / closing order of the plurality of covers, a first cover, a first locking means for locking the first cover, Means for constantly applying a force in the direction in which the first cover opens, a second cover, a second locking means for locking the second cover, and a second means for opening the first cover. Means for enabling operation of the second locking means of the cover.