JPH0711507Y2 - Lock device for open / close panel - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a locking device for an opening / closing panel that locks the opening / closing panel attached to an electronic device body to a closed position.

[Outline of device]

The present invention relates to a locking device for an opening / closing panel that locks the opening / closing panel with a locking plate and a locking pin when the opening / closing panel attached to the electronic device main body is mounted in a closed position. When the opening / closing panel is mounted in the closed position, the locking plate can automatically lock the locking plate to the locking position so that the locking in the closing position of the opening / closing panel can be performed reliably and easily. Is.

[Conventional technology]

BACKGROUND ART Conventionally, an electronic device main body, an opening / closing panel attached to the electronic device main body, a lock plate attached to the electronic device main body and configured to be movable between a lock position and a lock release position, and the lock thereof. A first spring for urging and moving the plate to the lock position; and a lock pin attached to the opening / closing panel, and when the opening / closing panel is mounted in the closed position, the lock pin is attached to the locking plate for the first spring. There is a locking device for an open / close panel that is configured to engage and lock against the lock.

[Problems to be solved by the device]

However, in the conventional locking device for the opening / closing panel, if the first spring that urges the locking plate to move to the locking position is weakened, the locking force of the locking pin by the locking plate weakens, and the locking pin is locked by the vibration or the like. It will easily come off and the opening / closing panel will be easy to open unexpectedly. On the other hand, if the first spring is strengthened, a strong force is required to engage and disengage the lock pin with respect to the lock plate, which makes it difficult to perform locking and unlocking operations at the closed position of the open / close panel. There was a problem to do.

An object of the present invention is to provide a locking device for an opening / closing panel, which can securely and easily lock the opening / closing panel at a closed position.

[Means for Solving the Problems]

In order to achieve the above object, the present invention provides a locking device for an opening / closing panel, comprising: a locking stopper which is attached to the opening / closing panel and is rotatable in an engaging direction and a releasing direction of the locking pin with respect to the locking plate. ,
A second spring for urging the locking stopper to rotate in at least the engaging direction, and when the opening / closing panel is mounted in the closed position, the first spring engages the locking pin of the locking plate with the locking pin. At the same time, the lock stop is engaged with the opposite side of the lock plate from the lock pin engaging side by the second spring, so that the lock plate is automatically locked at the lock position. Is.

[Action]

The locking device for the opening / closing panel configured as described above does not artificially unlock the locking stopper because the locking plate is automatically locked to the locking position by the locking stopper when the opening / closing panel is mounted in the closed position. As long as the lock pin does not come off from the lock plate. Therefore, it is not necessary to increase the locking force of the locking pin by the locking plate, and even if the first spring that urges the locking plate to move to the locking position is weakened, locking at the closed position of the open / close panel can be performed easily and reliably. You can do it.

〔Example〕

An embodiment of a locking device for an opening / closing panel to which the present invention is applied will be described below with reference to the drawings.

First, the mounting structure of the open / close panel will be described with reference to FIG.

For example, an electronic device 1 such as a switcher used in a video system for a broadcasting station has an opening 3 on the front surface of an electronic device body 2.
Is provided, and a plurality of card type circuit boards 4 for switching are horizontally inserted into the electronic device main body 2 through the opening 3 and housed in a plurality of upper and lower stages. Inside the electronic device body 2, a plurality of pairs of left and right guide rails 5 for inserting and holding a plurality of card type circuit boards 4 are provided. The front panel of the electronic device body 2 is configured as an opening / closing panel 6, and one end 6a of the opening / closing panel 6 is rotatably attached to the inside of one side wall 2a of the electronic device body 2 via a hinge 7. The other end 6b is rotated in the directions of arrows a and b to open and close the opening 3.
When the opening / closing panel 6 is mounted at the closed position indicated by the one-dot chain line, a locking device 8 for locking the opening / closing panel 6 is provided between the other end 6b of the opening / closing panel 6 and the inside of the other side wall 2b of the electronic device body 2. It is provided in.

Next, the locking device 8 will be described with reference to FIGS.

A lock side 8a attached to the electronic device main body 2 side of the lock device 8 has a lock plate 9 and a lock guide plate 10 which are perpendicular and parallel to each other. Then, the lock guide plate 10 is fixed to the inside of the other side wall 2b of the electronic device main body 2, and the lock plate 9 is placed inside the lock guide plate 10 with the rotation fulcrum pin 11 as the center and the lock position shown by the solid line in FIG. It is mounted rotatably in the arrow c and d directions between it and the lock release position above it. The lock plate 9 is the lock guide plate 10
It is urged to rotate in the direction of arrow d to the lock position by the first spring 12 mounted between the two. The lock piece 9a at the tip of the lock plate 9 and the guide piece 10a at the tip of the lock guide plate 10 are opposed to each other in the vertical plane from above and below.
Further, a small projection piece 13 which also extends downward from the lock piece 9a of the lock plate 9 and contacts the guide piece 10a and also serves as a rotary stopper in the direction of the arrow d, and a lock hole which is inserted into the long hole 14 of the lock plate 9 and is locked. By the flanged guide pin 15 fixed to the guide plate 10, the rattling of the lock plate 9 with respect to the lock guide plate 10 in the horizontal direction (vertical direction in FIG. 2) is suppressed.

The locked side 8b attached to the opening / closing panel 6 side of the locking device 8 has a locking pin 17 and a locking stopper 18 which also serves as a knob. The lock pin 17 is horizontally fixed to the side surface of the lower end of the vertical protruding piece 19a of the substantially U-shaped bracket 19 fixed to the inside of the other end 6b of the opening / closing panel 6 (on the side of the electronic device body 2). There is. The lockstopper 18 is vertically inserted into the bracket 19 and is mounted rotatably in the directions of arrows e and f (the engaging direction and the releasing direction of the lock pin 17 with respect to the lock plate 9) about the rotation fulcrum pin 20. ing. The lockup stopper 18 is urged to rotate by a pair of left and right second springs 21, which are toggle springs formed by torsion coil springs, from the middle point of the rotation angle to the arrow e direction and the arrow f direction. It is configured to be. It should be noted that one end 22a of the engaging portion 22 formed of a substantially Z-shaped rod-shaped member is loosely fitted in a long hole 23 formed horizontally along the upper edge of the projecting piece 19a, and the other end 22b of the locking stopper 18 is attached. It is inserted into a circular hole 24 provided and is rotatably supported, and is locked by a retaining washer 25. The operating surface 18a of the lockstopper 18 having a substantially doglegged shape.
Is projected to the outside (on the side opposite to the electronic device body 2) from the long hole 26 provided in the opening / closing panel 6. Further, recesses 27 are provided on both left and right side surfaces of the lockstopper 18.

Next, the operation of the locking device 8 will be described with reference to FIGS. 4A to 4D.

First, as shown in FIG. 4A, when the opening / closing panel 6 is mounted from the direction of the arrow a toward the closed position, the lock pin 17 is inserted between the lock piece 9a of the lock plate 9 and the guide piece 10a of the lock guide plate 10 by the arrow a. Inserted from the direction, the horizontal guide surface 10b of the guide piece 10a guides the lock pin 17 horizontally.

Then, as shown in FIG. 4B, the lock pin 17 is connected to the lock piece 9a.
One of the inverted triangular slopes 9b and 9c is pressed from the direction of the arrow a, and the locking plate 9 is rotated in the direction of the arrow c against the first spring 12 to the unlocked position.

Then, as shown in FIG. 4C, at the moment when the opening / closing panel 6 is attached to the closed position, the locking plate 9 is pivotally returned to the locking position by the first spring 12 in the direction of the arrow d, and the locking piece 9a.
The lock pin 17 is engaged and locked between the other slope 9c and the stepped portion 10c of the guide piece 10a so as to be caught.

At this time, as shown in FIG.
While being urged to rotate in the direction of arrow e by the spring 21 of
When the opening / closing panel 6 is mounted toward the closed position from the direction of arrow a, as shown in FIG. 4B, one end 22 of the engaging portion 22 is reached when the locking plate 9 is rotated by the locking pin 17 in the direction of arrow c.
Since a is inserted into the notch 9e provided in the upper surface 9d of the lock piece 9a and abuts against the step 9f of the notch 9e from the direction of the arrow a, the lockstopper 18 is attached to the second spring 21. Again, it is returned a little in the direction of arrow f. However, as shown in FIG. 4C, at the moment when the lock plate 9 is pivotally returned in the direction of the arrow d and is engaged with the lock pin 17, the lock stopper 19 is moved to the second position.
Is rotated by the spring 21 in the direction of arrow e, one end 22a of the engaging portion 22 is moved along the elongated hole 23 in the direction of arrow g, and the lock pin engaging side (both sloped surfaces 9b, 9c) of the lock piece 9a. Is engaged with the upper surface 9d, which is the opposite side to
The locking plate 9 is automatically locked at the locking position.

Therefore, after the opening / closing panel 6 is locked at the closed position, even if an external force is applied to the opening / closing panel 6 in the direction of arrow b in FIG. 4C due to vibration or the like, the opening / closing panel 6 is loosely fitted in the horizontal long hole 23 of the bracket 19. Since the one end 22a of the engaging portion 22 is pressing the upper surface 9d of the lock piece 9a, the lock plate 9 cannot escape in the direction of arrow c. Therefore, the lock pin 17 does not come off from the lock plate 9 due to vibration or the like, and the opening and closing panel 6 does not open unexpectedly in the direction of the arrow b.

Moreover, at this time, when the opening / closing panel 6 is attached to the closed position,
Since the locking plate 9 is automatically locked to the locking position by the engaging portion 22 of the locking stopper 18, there is no need to manually operate the locking stopper 18, and the opening / closing panel 6 is attached to the closing position in a one-touch manner. can do.

Next, as shown in FIG. 4C, from the outside of the opening / closing panel 6, the lower end side of the operation surface 18a of the locking stopper 18 having a substantially doglegged shape is pushed by the fingers from the direction of the arrow a, and the locking stopper 18 is pushed against the second spring 21. Then, if it is rotated a little in the direction of arrow f,
At the moment when the lockstopper 18 passes the midpoint of the rotation angle, the rotation biasing direction of the lockstopper 18 by the second spring 21 is switched to the arrow f direction, and the lockstopper 18 is rotated.
Is automatically rotated to the limit position in the direction of arrow f, and the upper end side of the locking stopper 18 is opened from the long hole 26 to the opening / closing panel 6.
Is largely projected to the outside of. Then, one end 22a of the engaging portion 22 is moved along the long hole 23 by the lock stopper 18 in the direction of the arrow h to be disengaged from the upper end 9d of the lock piece 9a (disengagement), and the lock plate 9 is released. The lock at the lock position is released. Then, by hooking the finger into the recess 27 of the lockstopper 18 and using the lockstopper 18 as a knob to pull the open / close panel 6 in the direction of arrow b, the lock pin 17
Presses the slope 9c of the lock piece 9a in the direction of arrow b to rotate the lock plate 9 first in the direction of arrow c against the spring 12, so that the lock of the lock pin 17 is released and the open / close panel 6
Can be easily opened in the direction of arrow b.

After this, as shown in FIG. 4A, when the upper end of the operating surface 18a of the lock stopper 18 is pushed in the direction of the arrow a with fingers and the lock lever 18 is rotated in the direction of the arrow e, the lock stopper 18 by the second spring 21 is moved. The rotational biasing direction of is switched again to the direction of arrow e, and the locking stopper 18 is automatically rotated to the limit position in the direction of arrow e.

By the way, particularly the lock side 8a of the locking device 8 is composed of only three parts, that is, the locking plate 9 and the locking guide plate 10 which are two vertical plates, and the first spring 12. The number of parts and the number of assembly steps are very small. As shown in FIG. 2, since the left-to-right dead space S occupied by the lock side 8a in the electronic device main body 2 can be made very small, the internal space of the electronic device main body 2 can be effectively utilized to The card type circuit board 4 having a large size can be easily stored.

Next, FIG. 6 shows a modified example of the locking device 8 in which the locking pin 17 is engaged with the locking plate 9 and locked, and the rotation fulcrum pin 20 of the locking stopper 18 is locked by the locking pin 17. By being arranged in the vicinity of the lower side, the engaging portion 22 of the lock stopper 18 which is engaged with the upper surface 9d of the locking piece 9a can be constituted by a simple pin.

The embodiments of the present invention have been described above, but the present invention is not limited to the above embodiments, and various effective modifications can be made based on the technical idea of the present invention.

[Effect of device]

Since the present invention is configured as described above, it has the following effects.

When the open / close panel is installed in the closed position, the locking plate is automatically locked to the locking position by the locking stopper so that the locking pin does not come off from the locking plate unless the locking stopper is artificially unlocked. Therefore, the locking of the open / close panel at the closed position can be performed reliably and easily, and there is no inconvenience that the lock pin is disengaged from the lock plate due to vibration or the like and the open / close panel is opened unexpectedly.

When the open / close panel is installed in the closed position, the lock plate is automatically locked to the lock position by the lock stop tool, so there is no need to manually operate the lock stop tool, and the open / close panel can be installed in the closed position in a one-touch operation. You can lock.

[Brief description of drawings]

1 is a side view of a locking device, FIG. 2 is a plan view of the locking device, and FIG.
FIG. 3 is an exploded perspective view of the locking device, FIGS. 4A to 4D are side views showing the operation of the locking device, FIG. 5 is a perspective view showing the mounting structure of the opening / closing panel, and FIG. 6 shows a modified example. It is a side view. In the reference numerals used in the drawings, 2 ... electronic device body 6 ... opening / closing panel 8 ... locking device 9 ... locking plate 12 ... first spring 17 ... locking pin 18 ... locking stopper 21 ... The second spring.

Claims (1)

[Scope of utility model registration request] 1. An electronic equipment main body, an opening / closing panel attached to the electronic equipment main body, and a lock plate attached to the electronic equipment main body and configured to be movable between a lock position and a lock release position. A first spring for urging the locking plate to move to the locking position and a locking pin attached to the opening / closing panel are provided, and the locking pin is attached to the locking plate when the opening / closing panel is mounted in the closing position. A locking device for an opening / closing panel that is configured to engage and lock against the spring of FIG. 2 and is attached to the opening / closing panel so as to be rotatable in an engaging direction and a releasing direction of the lock pin with respect to the lock plate. And a second spring for urging the locking stopper to rotate at least in the engaging direction, and the opening / closing panel is attached to the closing position. With the engagement of the lock plate with the lock pin of the lock plate by the first spring, the lock stopper is engaged by the second spring on the opposite side of the lock plate from the lock engaging side of the lock plate. A locking device for an opening / closing panel, characterized in that the locking plate is automatically locked at the locking position.