JP2563217Y2 - Cover lock structure in electronic equipment - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic device in which an electronic device is housed in a housing, and more particularly to a structure for locking an upper cover openably and closably mounted on an upper end of the housing. is there.

[0002]

2. Description of the Related Art FIG. 12 is a perspective view showing an entire apparatus.
In the figure, reference numeral 51 denotes a housing, and a fixed cover 52 and an upper cover 53 are attached to an upper end of the housing 51. Of these, the fixed cover 52 is fixed to the housing 51 with screws or the like, and one upper cover 53 is attached to the fixed cover 52 so as to be freely opened and closed. Arms 54 are attached to both sides of the upper cover 53, respectively. The upper cover 5 is pulled by a spring 55 hooked on one end of the arm 54.
3 is always biased in the opening direction. The front surface of the housing 51 is opened so that the electronic device 56 can be taken in and out, and a front cover (not shown) can be attached to the opening.

Conventionally, there is a cover lock structure for an electronic device having such a basic structure as shown in FIG. First, two lock pins 57 are provided at substantially the same height at predetermined intervals on the housing 51 side in which the electronic device 56 is stored.
Is provided. In response to this, the upper cover 53
A lock lever 58 is rotatably attached to the side, and each lock lever 58 is urged in one direction by a spring 59. A slide plate 60 is provided along the front surface of the upper cover 53, and the slide plate 60 is slidably engaged with a support metal 61 through a long hole (not shown). In addition, an engagement pin 60a protrudes from one surface of the slide plate 60, and the central portion of the above-described lock lever 58 is engaged near both ends of the slide plate 60, respectively. Also, the slide plate 6
A spring 62 is hooked at one end of the spring 62.
Is applied to the slide plate 60 in one direction. Here, each lock lever 58 rotates about one end thereof in conjunction with the sliding operation of the slide plate 60, and also moves along an arc-shaped long hole formed in an engagement portion with the slide plate 60. It can also rotate independently.

On the other hand, a handle 63 is provided on the front surface of the electronic device 56, and an operation lever 64 is provided near the handle 63.
Is attached. Link members 65 and 66 are connected to the operation lever 64. One link member 65 is connected to a fixing lever 70 for locking (fixing) the electronic device 56 to the housing 51, and the other link member 66 is engaged with a vertical moving plate 67. Have been. A spring 68 is hung on the vertical moving plate 67, and the vertical moving plate 67 is constantly urged upward by the pulling force of the spring 68. Further, a guide plate 69 is rotatably attached to the upper end of the front surface of the electronic device 56.
One end of 7 is engaged.

In the conventional cover lock structure having the above-described structure, when the upper cover 53 is locked, the upper cover 53 is closed while the electronic device 56 is housed in the housing 51. Then, first, the slide plate 6
The zero engagement pin 60a contacts the guide plate 69 attached to the electronic device 56. When the upper cover 53 is further closed, as shown in FIG.
While pressing against the guide plate 69 by the urging force of No. 2, it moves downward along the guide plate 69. As a result, the slide plate 60 moves rightward in the drawing against the urging force of the spring 62, and accordingly each lock lever 58 rotates counterclockwise.

When the upper cover 53 is further closed from this state, the lock lever 58 comes into contact with a lock pin 57 provided on the housing 51 side. Here, each lock lever 58 is formed with a tapered surface 58 a and a locking groove 58 b, and the tapered surface 58 a contacts the lock pin 57 at first. The taper surface 58a of the lock lever 58 is a spring 5
The lock lever 58 moves while being pressed against the lock pin 57 by the urging force of No. 9, whereby the lock lever 58 is once pushed back clockwise as shown in FIG. At the moment when the upper cover 53 is completely closed, the locking groove 58 b of the lock lever 58 is
7, whereby the upper cover 53 is locked.

On the other hand, when releasing the locked state of the upper cover 53 thus closed, while grasping the handle 63 provided on the front surface of the electronic device 56 as shown in FIG. Extrude in the direction of the arrow. Then, the sliding operation of the link member 65 in conjunction with the movement of the operation lever 64 causes the fixing lever 70 to move.
, The locked state of the electronic device 56 is released. At the same time, the vertical movement plate 67 is pulled down by the link operation of the link members 65 and 66 interlocked with the movement of the operation lever 64, and accordingly, the guide plate 69 is
It is rotated counterclockwise by pressing 0a.

When the engagement pin 60a is released and moved, the slide plate 60 is moved to the spring 62 as shown in FIG.
As a result, the lock lever 58 rotates clockwise and the lock lever 58 rotates clockwise.
Is released from the lock pin 57. As a result, the locked state of the upper cover 53 is released, and the upper cover 53 is opened by the pulling force of the spring 55 (FIG. 12).

[0009]

However, in the above-mentioned conventional cover lock structure, the lock lever 58 on the upper cover 53 side is always urged in the unlocking direction by the spring 62, and when the upper cover 53 is closed, Since the upper cover 53 is locked using a mechanism provided on the electronic device 56 side,
There is a problem that the lock of the upper cover 53 cannot be adjusted by the case 51 alone. Also, the upper cover 53
Since the positional relationship between the electronic device 56 and the electronic device 56 in the left-right direction directly affects the degree of engagement of the lock lever 58 with the lock pin 57, it is necessary to strictly control the assembling accuracy and the accuracy of each component. Further, in the conventional structure, when the locked state of the upper cover 53 is automatically released in conjunction with the operation of the mechanism provided on the electronic device 56 side,
The spring 62 must always be engaged with the slide plate 60 to be constantly biased. In addition to this, in order to lock the upper cover 53, each lock lever 58 is required.
However, since it is necessary to separately install the spring 59, different types of springs are attached everywhere, and the springs have a structure in which the springs exert a force on each other. Therefore, when designing the mechanism, there is the inconvenience that not only the individual spring pressure but also the balance of the overall force must be sufficiently considered. The present invention has been made to solve the above-described problem, and its main purpose is to release the lock state of the upper cover by releasing the fixed lock of the electronic device housed in the housing. It is an object of the present invention to provide a cover lock structure in which an upper cover can be independently locked and adjusted in an electronic device.

[0010]

SUMMARY OF THE INVENTION The present invention has been made to achieve the above object, and has a housing, an electronic device housed in the housing, and an openable and closable upper end of the housing. Upper cover which is always urged in the opening direction and
A lock pin provided on a side plate of the housing, a tapered surface provided on the upper cover side corresponding to the lock pin, and capable of abutting on the lock pin, and being capable of fitting to the lock pin on the tapered surface. In the cover lock structure in an electronic device provided with a lock lever having a locking groove formed on the upper cover, the upper cover is rotatably supported along the width direction of the housing, and according to the rotation direction. A rotation shaft for operating the lock lever in the cover lock direction and the lock release direction, an urging member for urging the lock lever in the cover lock direction via the rotation shaft, and a lock attached to the rotation shaft A release bracket and an operation lever provided on the electronic device for releasing a locked state of a fixing lever for fixing the electronic device to the housing. Provided on the electronic device side in a state of being connected to the operation lever, abutting on the unlocking bracket in conjunction with the unlocking operation of the fixing lever by the operation lever, and in the abutting state, the attachment And a connecting member for rotating the rotating shaft in a direction in which the lock lever operates in the unlocking direction against the urging force of the urging member.

[0011]

According to the cover lock structure of the present invention, when the electronic device is housed in the housing and the upper cover attached to the upper end of the housing is closed from the open state, the upper cover is closed. The tapered surface of the provided lock lever contacts the lock pin on the housing side. When the upper cover is further closed from this state, the rotating shaft rotates against the urging force of the urging member, and the lock lever once operates in the unlocking direction along with this rotation operation, and then the urging member is pressed. According to the force, the lock pin is fitted in the locking groove on the tapered surface. Accordingly, even when the electronic device is not housed in the housing, the upper cover can be locked in the closed state by the housing alone. In addition, when the locking lever for fixing the electronic device to the housing is released from the closed state of the upper cover using the operation lever provided on the electronic device side in conjunction with the unlocking operation. In this way, the connecting member on the electronic device side comes into contact with the unlocking bracket attached to the rotating shaft. At this time, the connecting member rotates the rotating shaft against the urging force of the urging member, and the lock lever operates in the unlocking direction in accordance with the rotation. Thus, unlocking of the electronic device by the fixing lever and unlocking of the upper cover by the lock lever can be performed simultaneously by one lever operation.

[0012]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is an assembly view showing an embodiment of a cover lock structure according to the present invention, and FIGS. 2 and 3 are exploded views thereof. Note that, in the exploded view of FIG. 2, the fixed cover 2 and the upper cover 3 are shown smaller than other constituent members, and P indicates the mounting position on the two covers 2 and 3.
The reference numerals 1 to P2 correspond to the reference numerals P1 to P2 indicated by arrows on other constituent members. In the figure, reference numeral 1 denotes a housing, and a fixed cover 2 and an upper cover 3 are attached to an upper end of the housing 1. Among them, the fixed cover 2 is fixed to the housing 1 with screws or the like,
One upper cover 3 is attached to the fixed cover 2 so as to be openable and closable. That is, as shown in FIG. 2, arms 4 are screwed to both sides of the upper cover 3, and the rear of each arm 4 is rotatable by an arm receiver 5 fixed to the front of the fixed cover 2. Supported. On the other hand, a spring 7 is attached to both sides of the fixed cover 2 via a plate 6, and one end of the spring 7 is hooked to a rear end of the arm 4. Thus, the upper cover 3 is always urged in the opening direction by the tension of the spring 7. The configuration up to this point is basically the same as the above-described conventional example.

In such a basic structure, the cover opening / closing structure of this embodiment is configured as follows. First, lock pins 10 a and 10 b are supported on side plates of the housing 1 via brackets 8 and 9, respectively. Each of the lock pins 10 a and 10 b is arranged along the width direction of the housing 1. On the other hand, on the upper cover 3 side, lock levers 11a and 11b are attached corresponding to the lock pins 10a and 10b described above. Each of the lock levers 11a and 11b has a tapered surface 12 that can be engaged with the lock pins 10a and 10b and a locking groove 13 that can be fitted with the lock pins 10a and 10b.

A bracket 14 is attached to the front of the upper cover 3 via the arm 4 described above. A bearing member 15 is screwed to both sides of the bracket 14, and a rotary shaft 16 is axially supported along the width direction of the housing 1 so as to pass through the bearing member 15.
A spring 17 (biasing member) is wound around the rotating shaft 16 together with the bearing member 15 described above. One end of the spring 17 is hung by a regulating member 18 screwed to the rotating shaft 16. I have.

Here, the lock levers 11a, 1
1b, one lock lever 11a is screwed to one end of the rotating shaft 16. On the other hand, one end of the other lock lever 11b is pivotally supported by the arm 4, and the other end thereof is a link member 19 and a release bracket 20.
Is connected to the rotating shaft 16 through the shaft.

In the above configuration, the spring 1 serving as a biasing member is provided.
7 urges the rotating shaft 16 in one direction, that is, in the direction of the arrow R (FIG. 2) via the regulating member 18. Then, the lock levers 11a and 11b are urged by the urging force in directions indicated by arrows J and K (FIG. 1) in the cover lock direction. Further, in this state, one end of the regulating member 18 is pressed against the bearing member 15, whereby the rotation direction of the rotating shaft 16 is regulated.

In the cover lock structure of this embodiment, the operation lever 2 for releasing the locked state of the upper cover 3 is provided on the electronic device 21 housed in the housing 1.
2 are installed. More specifically, an operation lever 22 is attached to a front surface of the electronic device 21 near the handle 23. One end of the operation lever 22 is supported by an electronic device main body together with a fixing lever 24 for fixing the electronic device 21 to the housing 1, and the other end is an upper and lower arm 25.
At the lower end of the shaft. Here, the fixing lever 24
Locks the electronic device 21 in a fixed state by engagement with a pin provided on the housing 1 side. The direction in which the pin is engaged by the spring 26 hooked at one end of the lever, that is, the electronic device 21 Is biased in a direction to lock the fixed state. Further, the pulling force of the spring 26 also acts on the operation lever 22 via the fixing lever 24,
The pulling force also urges the front side of the operation lever 22 downward. Further, at the upper end of the electronic device 21, a release lever 27 that forms a connection member together with the upper and lower arms 25 is pivotally supported. One end of the release lever 27 is connected to the upper end of the upper and lower arms 25. The release lever 27 is arranged near the unlocking bracket 20 provided on the housing 1 side with the electronic device 21 stored in the housing 1 and the upper cover 3 closed. ing. A guide rail 28 is attached to each of the opposing side surfaces of the housing 1 and the electronic device 21 so that the electronic device 21 can be smoothly inserted and removed by the guide rail 28. Further, the guide rail 28 has a structure that expands and contracts as the electronic device 21 is taken in and out.

Next, the operation of the cover lock structure of this embodiment will be described. First, when the upper cover 3 is closed in the direction of the arrow as shown in FIG. 4 in a state in which the electronic device 21 is stored in the housing 1, the taper surfaces 12 of the lock levers 11a and 11b are closed as shown in FIG. It engages with lock pins 10a and 10b provided on the housing 1 side. When the upper cover 3 is further closed, the lock levers 11a, 11b
Of the lock pins 10a and 10b, the reaction force is applied to the lock levers 11a and 10b.
1b is rotated in the unlocking direction, that is, in the directions of arrows A and B in the figure (the front-rear direction of the housing 1) with the rotation of the rotating shaft 16 against the urging force of the spring 17. Subsequently, when the upper cover 3 is further closed, as shown in FIG. 6 at the moment when the upper cover 3 is completely closed, the rotation of the rotation shaft 16 according to the urging force of the spring 17 causes the lock lever 11a to rotate. , 11b rotate in the cover locking direction opposite to the previous direction, that is, in the directions of arrows C and D in FIG.
The locking groove 13 of FIG.
a, 10b are fitted, and the upper cover 3 is locked in the closed state.

On the other hand, when releasing the locked state of the upper cover 3 thus closed, while holding the handle 23 provided on the front surface of the electronic device 21 as shown in FIG.
An operation is performed so that one end of the operation lever 22 is pushed up with the thumb. Then, the fixing lever 24 swings in conjunction with the movement of the operation lever 22, whereby the fixing lever 24
The engagement state of the electronic device 21 with the pin on the housing 1 is released, and the locked state of the electronic device 21 by the fixing lever 22 is released. Also, in conjunction with the movement of the operation lever 22, the upper and lower arms 25 also move upward as shown in FIG. 8, and the release lever 27 connected thereto is rotated in the direction of the arrow E. As a result, the distal end portion of the release lever 27 comes into contact with the unlocking bracket 20 provided on the upper cover 3 side,
In this contact state, the bracket 20 is rotated together with the rotating shaft 16 in the direction of the arrow H.

When the rotating shaft 16 is rotated in this manner,
In conjunction with this, the lock levers 11a and 11b are also rotated in the directions of arrows F and G as shown in FIG. 9, and the locking grooves 13 of the lock levers 11a and 11b are
a, 10b. With this, the upper cover 3
Is released, and the upper cover 3 is opened in the direction of the arrow by the pulling force of the spring 7 as shown in FIG. After the upper cover 3 is opened, the rotating shaft 16 returns to the original state by the urging force of the spring 17, and accordingly the lock levers 11a and 11b also return to the initial state.
That is, the state is returned to the lockable state.

In the cover lock structure of the present embodiment, when the electronic device 21 is pulled out of the housing 1,
The guide rails 28 attached to the opposing side surfaces extend as the electronic device 21 is pulled out. At this time, the extended guide rail 28 is arranged at a position where the unlocking bracket 20 advances when the upper cover 3 is closed. Thus, even if the user tries to close the upper cover 3 in a state where the electronic device 21 is pulled out from the housing 1, FIG.
As shown in FIG. 1, the lower end of the unlocking bracket 20 abuts against the upper surface of the guide rail 28, and the rotation of the rotating shaft 16 causes the lock levers 11a and 11b.
Are held in an unlocked state, that is, a state where they are not fitted to the lock pins 10a and 10b. Also, the electronic device 2 is provided in the housing 1.
When the upper cover 3 is retracted, the guide rail 28 is retracted to the original state and retracted into the housing 1.
Return to the state where can be locked. The reason for adopting such a configuration is that, for example, when the electronic device 21 is erroneously stored in the housing 1 even though the upper cover 3 is locked, the electronic device 21 and the upper cover 3 This was done so that both sides would not be damaged by collision.

As described above, in the cover lock structure of the present embodiment, the mechanism on the electronic device 21 side is not used.
The upper cover 3 can be locked by the housing 1 alone. When the upper cover 3 is locked, each of the lock levers 11a and 11 is linked with the rotation of the rotation shaft 16 that is supported along the width direction of the housing 1.
b of the lock pin 10 from the front-rear direction of the housing 1.
Since the upper cover 3 is fitted to the upper cover 3, the locked state of the upper cover 3 can be reliably maintained even in the case where the upper cover 3 is likely to receive a shock in the left-right direction (the width direction of the housing 1). . Further, among the mechanisms configured to lock the upper cover 3, one type of spring 17 is used.
Are wound so as to perform the same function, so that the springs do not affect each other as in the related art.

[0023]

As described above, according to the cover lock structure of the present invention, the upper cover can be locked by itself without using the mechanism on the electronic device side. Even if the upper cover is not stored, the lock of the upper cover can be adjusted by the housing alone. Further, since the degree of engagement of the lock lever with respect to the lock pin is no longer affected by the positional relationship between the upper cover and the electronic device as in the related art, there is no need to strictly control the assembly accuracy of the two and the accuracy of individual components. Cost reduction can also be expected. Further, the lock lever can be operated in the cover lock direction and the lock release direction by using the rotation operation of the rotation shaft, and the lock lever is urged in the cover lock direction by the urging member via the rotation shaft. Since the lock lever is operated in the unlock direction by operating the lever on the electronic device against the urging force, the urging forces of multiple types of urging members do not affect each other as in the conventional case. This also eliminates the inconvenience of having to consider the overall force balance when designing the mechanism.

When the electronic device is pulled out from the housing and the upper cover is closed, the lock lever is unlocked by bringing the unlocking bracket into contact with the rail member extended with the pulling out of the electronic device. Since the electronic device is held in the state, the upper cover is not locked when the electronic device is pulled out. Thus, when the upper cover is opened, the electronic device is pulled out of the housing, and when the electronic device is stored in the housing again, the upper cover is closed before the electronic device is stored in a wrong order, for example. Even in such a case, the upper cover is opened without being locked, so that when the electronic device is stored, a collision between the electronic device and the upper cover due to a manual operation mistake can be avoided.

Further, according to the present invention, the lock pin is arranged along the width direction of the housing, and the lock lever corresponding to the lock pin is supported so as to be rotatable in the front-rear direction of the housing. The lock groove of the lock lever is fitted from the front and rear direction of the housing, so that the upper cover is locked even if vibration or impact is applied to the upper cover by external factors. , And a significantly more stable lock structure of the upper cover than before is realized.

[Brief description of the drawings]

FIG. 1 is an assembly view showing an embodiment of a cover lock structure according to the present invention.

FIG. 2 is a partial exploded view (part 1) of FIG. 1;

FIG. 3 is a partial exploded view of FIG. 1 (part 2).

FIG. 4 is a diagram (part 1) illustrating an operation in the embodiment.

FIG. 5 is an operation explanatory diagram (part 2) in the embodiment.

FIG. 6 is an explanatory diagram (part 3) of the operation in the embodiment.

FIG. 7 is an operation explanatory diagram (part 4) of the embodiment.

FIG. 8 is an operation explanatory view (5) of the embodiment.

FIG. 9 is an operation explanatory view (part 6) in the embodiment.

FIG. 10 is an operation explanatory diagram (part 7) of the embodiment.

FIG. 11 is an operation explanatory view (8) of the embodiment.

FIG. 12 is a perspective view showing the entire device.

FIG. 13 is an assembly view showing a conventional structure.

FIG. 14 is an operation explanatory diagram (part 1) of a conventional example.

FIG. 15 is an operation explanatory diagram (part 2) of the conventional example.

FIG. 16 is an operation explanatory view (3) of the conventional example.

FIG. 17 is an operation explanatory diagram (part 4) of the conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Housing 3 Upper cover 10a, 10b Lock pin 11a, 11b Lock lever 12 Taper surface 13 Locking groove 16 Rotation shaft 17 Spring (biasing member) 18 Restriction member 21 Electronic device

Claims (3)

(57) [Scope of request for utility model registration] 1. A housing, an electronic device housed in the housing, an upper cover attached to an upper end of the housing so as to be openable and closable and constantly urged in an opening direction, and a side plate of the housing. A lock pin provided, a tapered surface provided on the upper cover side corresponding to the lock pin, and capable of abutting on the lock pin, and a lock formed on the tapered surface so as to be fitted to the lock pin. A cover lock structure for an electronic device including a lock lever having a groove, wherein the cover cover is rotatably supported by the upper cover along the width direction of the housing, and locks the lock lever in accordance with the rotation direction. A rotating shaft that operates in a direction and an unlocking direction; a biasing member that biases the lock lever in the cover lock direction via the rotating shaft; A lock release bracket, an operation lever provided on the electronic device, for releasing a locked state of a fixing lever for fixing the electronic device to the housing, and the electronic device connected to the operation lever. The lock is provided on the device side and abuts against the unlocking bracket in conjunction with the unlocking operation of the fixing lever by the operating lever, and in the abutted state, the lock against the urging force of the urging member. A cover member for an electronic device, comprising: a connecting member that rotates the rotation shaft in a direction in which a lever operates in the unlocking direction. 2. The electronic device according to claim 1, wherein said electronic device is retractably housed in said housing by means of a stretchable rail member. When said electronic device is pulled out of said housing and said upper cover is closed. 2. The electronic device according to claim 1, wherein the lock lever is held in an unlocked state by contacting the unlocking bracket with the rail member extended with the drawer of the electronic device. Cover lock structure in equipment. 3. The lock device according to claim 1, wherein the lock pin is disposed along a width direction of the housing, and the lock lever corresponding to the lock pin is supported so as to be rotatable in a front-rear direction of the housing. The cover lock structure according to claim 1, wherein a locking groove of the lock lever is fitted to a pin from a front-rear direction of the housing.