JP5906207B2 - Cover lock device - Google Patents

Description

  The present invention relates to a cover lock device, and more particularly to a cover lock device suitable for being applied to a device that unlocks a front cover that can be opened and closed and locked on the front side from the rear door side.

  When inspecting and repairing an automatic machine such as an automated teller machine, the front cover and front door are opened to access the inside, but such a front cover and front door A locking device is provided. Generally, the locking device is installed on a front cover or a front door and can be locked or unlocked with a key or the like. However, with regard to automatic machines, from the viewpoint of crime prevention, do not provide key holes in the front cover or front door on the front side of the customer service side, so that the locking device can be unlocked only from the rear door side. Is considered. Also, a method using a gas spring is generally known as a front cover that supports a heavy object in a tiltable manner (see, for example, Patent Document 1).

  FIG. 10 is an explanatory view showing the outline of the cover opening and closing mechanism and the cover lock device on the front side of the automatic machine, FIG. 11 is an explanatory view showing a configuration example of the cover lock device, (A) shows the locked state, (B) shows the unlocked state.

  As shown in FIG. 10, the automatic machine 100 is provided with a flip-up type front cover 101 at the upper part on the front side. Since the front cover 101 is heavy, it is supported by the gas spring 102 and is lifted by the gas pressure of the gas sealed in the gas spring 102.

  The front cover 101 is provided with a cover locking device 103 so that the rear door 104 can be opened and unlocked by an operation from the rear door 104 side. That is, as shown in FIG. 11A, the cover lock device 103 is extended from the front side to the rear side of the locking member 105 having the hook-shaped locking portion 105 a and the automatic machine 100. And a lock release lever 106.

  The locking member 105 is pivotally supported around a shaft 107, urges the locking member 105 in the clockwise direction by a spring 108, and a locking portion 105 a is provided at the bottom of the front cover 101. It engages with the stop plate 109. Thereby, the front cover 101 which is going to be lifted by the gas pressure of the gas spring 102 is locked.

  The locking member 105 has a sliding pin 110 fixed to the opposite side of the mounting position of the spring 108 with the shaft 107 interposed therebetween, and this sliding pin 110 has a short direction at one end of the lock release lever 106. It is loosely fitted in a long hole 111 that is long. The lock release lever 106 also has a long hole 112 that is long in the longitudinal direction, and guide pins 113 and 114 fixed to a fixing portion (not shown) are loosely fitted in the long hole 112. The guide pins 113 and 114 are spaced apart at a predetermined interval so as to determine the tension release stroke of the lock release lever 106. The unlock lever 106 is provided with a pull fitting 115 used at the other end when performing a pulling operation for unlocking.

  To release the lock of the front cover 101, as shown in FIG. 11B, when the pulling bracket 115 is pulled in the right direction in the figure, the locking member 105 resists against the urging force of the spring. The locking portion 105a is released from the locking plate 109 by being urged clockwise. As a result, the front cover 101 is lifted by the gas pressure of the gas spring 102 (not shown), and the automatic machine 100 opens the portion covered by the front cover 101.

JP 2003-177838 A

  However, when the front cover is held by the gas spring, it is dangerous to jump up the front cover after unlocking from the rear door side, so personnel are required to monitor the front cover so that no one can approach it. There was a problem that.

  The present invention has been made in view of these points, and an object of the present invention is to provide a cover lock device that can safely unlock the front cover even if there is only one maintenance staff.

  In the present invention, in order to solve the above-described problem, in a cover lock device that locks or unlocks a flip-up type front cover that is provided on the front side of the device and supported by a gas spring, the bottom of the front cover is opened and closed. Locking the front cover by locking the first locking plate and the second locking plate, which are spaced apart in the direction, and the first locking plate and the second locking plate, respectively. A cover engagement / disengagement part for bringing the front cover into an unlocked state by releasing the latched state between the first latching plate and the second latching plate, and on the rear side of the device An operation portion that is arranged and linked with the cover engagement / disengagement portion to operate the release operation of the engagement state with the first engagement plate in the cover engagement / disengagement portion from the rear side of the device, The operation of releasing the locked state with the second locking plate at the bar engaging / disengaging portion is performed through a gap formed by opening the front cover by the releasing operation of the locked state with the first locking plate. A cover lock device characterized by the above is provided.

  According to such a cover lock device, by pulling the operating portion from the rear side of the device, the first locking member is released from the first locking plate, and the lock is released. The locking plate is locked with the second locking member, and the release is performed manually from the front side of the apparatus.

  According to the cover lock device having the above-described configuration, one maintenance staff performs unlocking of the first locking plate by an operation from the rear side of the device and unlocking of the second locking plate by an operation on the front surface of the device. There is an advantage that can be done with.

It is a perspective view which shows the external appearance of an automatic machine. It is a perspective view which shows the state which removed the front cover of the automatic machine. It is a figure which shows the cover engagement / disengagement part of a cover lock apparatus. It is explanatory drawing which shows the side surface of a cover engagement / disengagement part. It is a perspective view which shows the bottom part of a front cover. It is a disassembled perspective view which shows the operation part of the cover lock apparatus arrange | positioned at the rear door side of an automatic machine. It is a fragmentary sectional view which shows the operation part of a cover lock apparatus in the cross section cut | disconnected by the plane which passes along the axial center of a sliding pin in a horizontal direction. It is explanatory drawing of the operation | movement aspect of an operation part, (A) is a front lock state, (B) is a front 1st lock release state, (C) is a front 2nd lock state, (D) is front 2nd lock release. The start state, (E) shows the front second unlocked state, and (F) shows the pull-stand standby state. It is explanatory drawing of the operation | movement aspect of the operation part when closing a front cover, Comprising: (A) is a state when a front cover is open, (B) is a 1st and 2nd locking plate 1st and 2nd. FIG. 2C shows a state when the two locking members are overcome, and FIG. It is explanatory drawing which shows the outline | summary of the cover opening / closing mechanism and cover lock apparatus of the front side of an automatic machine. It is explanatory drawing which shows the structural example of a cover lock apparatus, Comprising: (A) shows a locked state and (B) has shown the lock unlocking state.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings, taking as an example the case of application to an automatic machine.
1 is a perspective view showing an external appearance of the automatic machine, FIG. 2 is a perspective view showing a state where a front cover of the automatic machine is removed, FIG. 3 is a view showing a cover engaging / disengaging portion of the cover lock device, and FIG. FIG. 5 is a perspective view showing the bottom of the front cover.

  As shown in FIG. 1, the automatic machine 1 has, for example, a screen 2 at the upper part on the front side, a card insertion slot 3 and a passbook insertion slot 4 provided below it, and a bill transaction opening 5 provided below it. It has been. Portions other than the screen 2, the card insertion slot 3, the passbook insertion slot 4 and the banknote transaction opening 5 are covered with a front cover 6. The automatic machine 1 is also provided with a rear door 7 on the back surface thereof.

  The screen 2 is used for displaying a transaction menu, operation guidance, transaction input, and the like. The card insertion slot 3 is for inserting a cash card, the bankbook insertion slot 4 is for inserting a bankbook, and the banknote transaction opening 5 inserts banknotes during deposit or payment transactions. Or it is the opening part of the part output. The rear door 7 is opened at the time of operations such as banknote replenishment, inspection and repair.

  The front cover 6 is swingably attached by a hinge provided at the top on the front side of the automatic machine 1 and is supported by a gas spring provided on both sides inside the automatic machine 1 so that it can be tilted. .

  Inside the automatic machine 1, as shown in FIG. 2, a cover engaging / disengaging portion 10 of the cover lock device is disposed on the front side. As shown in FIG. 3, the cover engagement / disengagement unit 10 has a fixing metal 11 fixed to the casing of the automatic machine 1 at both ends, and a first engagement is fixed to the shaft 12 fixed to the fixing metal 11. Each of the stop members 13 is pivotally supported. The first locking member 13 has a hook-shaped locking portion 14 at one end, and one end of a spring 15 is locked at the other end. The other end of the spring 15 is locked to the fixing bracket 11, and is biased to lift the locking portion 14 on the distal end side of the first locking member 13.

  In the cover engaging / disengaging portion 10, the front ends of the first locking members 13 on both sides are connected to each other by a connecting member 16. The connecting member 16 is provided with a second locking member 17 having a shape similar to that of the first locking member 13 at an intermediate portion thereof. The first locking member 13 and the second locking member 17 are arranged so as to overlap in the extending direction of the connecting member 16. The connecting member 16 also has a touch portion 18 formed at the center thereof. The touch part 18 is a part to be touched by a finger inserted through a gap between the banknote transaction opening 5 and the front cover 6 and the automatic machine 1 formed at the time of the first unlocking, and this is a second lock. It becomes an operation part operated at the time of cancellation | release.

  In the cover engaging / disengaging portion 10, the first locking member 13, the connecting member 16, and the touch portion 18 are preferably formed integrally by punching and bending a sheet metal.

  In the cover engagement / disengagement unit 10, a lock release lever 19 is connected to one of the first locking members 13. As shown in FIG. 4, the lock release lever 19 has a long hole 20 that is long in the short direction in the left end portion of FIG. 4, and the long hole 20 includes a first locking member. A sliding pin 21 fixed to 13 is loosely fitted. As a result, when the unlocking lever 19 is pulled rightward in FIG. 4, the first locking member 13 rotates counterclockwise around the shaft 12 against the biasing force of the spring 15. Thus, the first lock release of the front cover 6 can be performed.

  As shown in FIG. 5, the front cover 6 is provided with a first locking plate 22 and a second locking plate 23 at the bottom. The first locking plates 22 are provided at both ends on the front side of the bottom portion of the front cover 6, and are hooked by the first locking members 13 of the cover engaging / disengaging portion 10 when the front cover 6 is closed. The front cover 6 is locked in a closed state. Further, the second locking plate 23 is provided at a position behind the first locking plate 22, and immediately after the first unlocking, the second locking member 17 of the cover engaging / disengaging portion 10 is provided. It is the part that is hooked by. Here, the second locking plate 23 is formed such that its tip protrudes from the first locking plate 22 by a length A when it reaches the locking portion of the second locking member 17. ing. Thus, immediately after the first locking of the first locking plate 22 of the front cover 6 and the first locking member 13 of the cover engaging / disengaging part 10, the front cover 6 is centered on the swing shaft 24. When rotating clockwise, the second locking plate 23 is securely engaged with the second locking member 17.

  FIG. 6 is an exploded perspective view showing an operation part of the cover lock device arranged on the rear door side of the automatic machine, and FIG. 7 is a cut view of the operation part of the cover lock device along a plane passing through the axis center of the sliding pin in the horizontal direction. It is a fragmentary sectional view shown in a section.

  As shown in FIG. 6, the operation unit 25 of the cover lock device includes a lock release lever 26, fixing brackets 27 and 28, a pulling bracket 29, a sliding pin 30, a spring 31, and washers 32 and 33. And E-type retaining rings 34 and 35.

  The lock release lever 26 is joined to the lock release lever 19 at one end, and a latch mechanism portion of the operation unit 25 is formed at the other end side. That is, a through hole 36 through which the slide pin 30 is inserted is formed at the other end of the lock release lever 26. The fixing brackets 27 and 28 are fixed to the casing of the automatic machine 1, and the guide holes 37 having a long hole shape whose major axis is inclined obliquely upward from the front to the rear of the automatic machine 1 with respect to the horizontal direction. 38 are formed. The pull metal fitting 29 has a handle member 39 and a locking member 40 formed in a U-shape. The locking member 40 is formed such that a locking portion 41 protrudes upward at the upper portion, an inclined portion 42 is formed on the front end side of the locking portion 41, and a vertical portion 42a is formed on the rear end side. Is formed. The inclined portion 42 has the same inclination angle as that of the guide holes 37 and 38. One end of the spring 31 is locked in a through hole 43 formed in the fixing bracket 27, and the other end is locked in a through hole 44 formed in the pulling bracket 29, and the pulling bracket 29 is moved forward of the automatic machine 1. It is configured to pull.

  As shown in FIG. 7, the lock release lever 26 is sandwiched by the walls in which the guide holes 37 and 38 of the fixing brackets 27 and 28 are formed. Here, the sliding pin 30 is inserted into the guide hole 37 of the fixing bracket 27, the through hole 36 of the lock release lever 26, and the guide hole 38 of the fixing bracket 28. The sliding pin 30 is prevented from coming off by disposing washers 32, 33 and E-type retaining rings 34, 35 at both ends thereof. The locking member 40 of the pulling fitting 29 is disposed between the lock release lever 26 and the fixing fitting 27 so as to be able to advance and retract in the horizontal direction.

  Next, the operation of the cover lock device configured as described above will be described. First, the operation on the cover engaging / disengaging unit 10 side of the cover lock device will be described with reference to FIG. 4, and then the operation of the operation unit 25 of the cover lock device will be described.

  In the state where the front cover 6 is locked, as shown in FIG. 4, the first locking member 13 of the cover engaging / disengaging portion 10 is locked with the first locking plate 22 on the front side, and the spring 15, the front lock state is maintained. Here, when the unlocking lever 19 is moved in the right direction in the drawing by the pulling operation of the operating portion 25, the first locking member 13 is counterclockwise about the shaft 12 against the urging force of the spring 15. Rotate. When the unlocking lever 19 moves to the right in the drawing by the distance B, the locking portion 14 of the first locking member 13 is disengaged from the first locking plate 22 (front first unlocking state), and the front cover 6 Rotates clockwise about the swing shaft 24.

  When the front cover 6 rotates, the rear second locking plate 23 is locked with the second locking member 17. Here, the lock release lever 19 is configured so that the operation portion 25 can move only a short distance after moving the distance B in the right direction in the figure. Is substantially in a position when the locking portion 14 is disengaged from the first locking plate 22. The second locking plate 23 is formed such that the tip of the second locking plate 23 protrudes by a length A from the first locking plate 22 when reaching the locking portion of the second locking member 17. Therefore, the second locking plate 23 is securely locked to the second locking member 17.

  Thereby, the front cover 6 is maintained in a state where the second locking plate 23 is opened to a position where the second locking plate 23 is locked with the second locking member 17 (front second locked state). Thereafter, the maintenance worker who has performed the unlocking operation on the rear side of the automatic machine 1 turns to the front of the automatic machine and pushes the touch part 18 of the cover engagement / disengagement part 10 through the gap with the slightly opened front cover 6 to The engagement between the engagement portion of the engagement member 17 and the second engagement plate 23 is manually released. Thereby, the front cover 6 is flipped up to a substantially horizontal state by a gas spring (not shown) when the lock is released.

  When closing the front cover 6, by pushing down the bottom of the front cover 6, first, the tip of the second locking plate 23 comes into contact with the inclined portion of the locking portion of the second locking member 17, and then , Slide along the inclined part. At this time, the cover engaging / disengaging portion 10 is rotated counterclockwise about the shaft 12 against the urging force of the spring 15. When the tip of the second locking plate 23 gets over the locking portion of the second locking member 17, the cover engaging / disengaging portion 10 is moved to the second locking shown by the solid line in FIG. 4 by the biasing force of the spring 15. It is returned to the position of the member 17. Note that when the tip of the second locking plate 23 gets over the locking portion of the second locking member 17, the cover engagement / disengagement portion 10 rotates to move the lock release lever 19 to the right in FIG. The moving operation is absorbed on the side of the operation unit 25 linked to the cover engaging / disengaging unit 10.

  When the bottom side of the front cover 6 is further pushed in, this time, the tip of the first locking plate 22 comes into contact with the inclined portion of the locking portion 14 of the first locking member 13, and then along the inclined portion. Sliding. At this time, the cover engaging / disengaging portion 10 is rotated counterclockwise about the shaft 12 against the urging force of the spring 15. When the tip of the first locking plate 22 gets over the locking portion 14 of the first locking member 13, the cover engaging / disengaging portion 10 is moved to the first engagement shown by the solid line in FIG. 4 by the urging force of the spring 15. It is returned to the position of the stop member 13. Note that when the first locking plate 22 gets over the locking portion 14 of the first locking member 13, the cover engagement / disengagement portion 10 rotates to move the lock release lever 19 to the right in FIG. The moving operation is absorbed on the operation unit 25 side so that the closing operation is not affected.

Next, the operation of the operation unit 25 of the cover lock device will be described.
8A and 8B are explanatory views of the operation mode of the operation unit, in which FIG. 8A is a front lock state, FIG. 8B is a front first unlock state, FIG. 8C is a front second lock state, and FIG. 2 shows the unlocking start state, (E) shows the front second unlocking state, and (F) shows the pull-stand standby state.

  When the front cover 6 is closed and in the front lock state, the operation unit 25 is configured so that the pulling metal fitting 29 is pulled by the spring 31 and is attached to the side end surfaces of the fixing metal fittings 27 and 28 as shown in FIG. It is in the abutted position. At this time, the sliding pin 30 inserted through the through hole 36 of the unlocking lever 26 is positioned at the lowest position of the guide holes 37 and 38 of the fixing brackets 27 and 28 and the locking portion of the locking member 40. It is located beside the vertical portion 42a extending in the protruding direction 41 (upward in the figure).

  Here, when the operation portion 25 is pulled, the locking portion 41 of the locking member 40 moves in the right direction of the drawing in a state where the sliding pin 30 is locked to the vertical portion 42a. At this time, since the sliding pin 30 moves obliquely along the guide holes 37 and 38 of the fixing brackets 27 and 28, the guide holes 37 and 38 rise upward diagonally to the right in the drawing as the locking portion 41 moves. Will do. When the sliding pin 30 reaches the upper end of the guide holes 37 and 38, the sliding pin 30 gets over the locking portion 41 as shown in FIG. Here, the lock release lever 26 can move by a distance C in the horizontal direction when the slide pins 30 are positioned at both ends of the guide holes 37 and 38 in the major axis direction. The unlocking lever 19 also moves in the horizontal direction in the removal part 10. This distance C is formed to be slightly longer than the distance B through which the lock release lever 19 moves. Therefore, when the sliding pin 30 reaches the upper end of the guide holes 37 and 38, the front first unlocking state in which the locking state between the first locking member 13 and the first locking plate 22 is released. It is in.

  In the cover engaging / disengaging part 10, when the front first lock is released, the first locking member 13 is rotated by the urging force of the spring 15 and attempts to enter the front second lock state. At this time, since the unlocking lever 19 is pulled back to the front side of the automatic machine 1, as shown in FIG. 8C, the unlocking lever 26 is also pulled back (to the left in the figure) and slides. The moving pin 30 moves downward along the guide holes 37 and 38. When the transition from the front first unlocked state to the front second locked state is immediately after the front first unlocked state, the maintenance staff is still pulling the handle member 39. The metal fitting 29 is not returned. Further, even if the hand is released from the handle member 39 in the state of FIG. 8C, the urging force of the spring 31 is not so large as to push up the sliding pin 30, so that the pulling bracket 29 maintains its non-returning state. To do.

  Thereafter, when the maintenance staff directly operates the cover engaging / disengaging portion 10 to start the second unlocking of the front, the unlocking lever 19 is pushed to the rear side of the automatic machine 1, so that the unlocking lever 26 is also moved rearward. (To the right in the figure). As a result, the sliding pin 30 rises along the guide holes 37 and 38 as shown in FIG.

  While the sliding pin 30 is raised along the guide holes 37, 38, the sliding pin 30 enters the front second unlock state. Thereafter, when the sliding pin 30 reaches the upper end of the guide holes 37 and 38 and reaches the top of the inclined portion 42 of the locking portion 41, the locking member 40 becomes free. As shown, the pulling bracket 29 is pulled back to the left side of the figure by the urging force of the spring 31.

  The sliding pin 30 comes to be positioned beside the vertical portion 42 a of the locking portion 41 while the pulling metal 29 returns to its standby state. As a result, the sliding pin 30 is not supported by the locking portion 41, so that the locking portion 41 descends along the guide holes 37 and 38 while returning to the standby state of the pulling fitting 29. Then, when the pulling metal fitting 29 is pulled by the spring 31 and comes into contact with the fixing metal fittings 27 and 28, as shown in FIG.

Next, the operation on the operation unit 25 side when the opened front cover 6 is closed will be described.
FIG. 9 is an explanatory view of the operation mode of the operation unit when the front cover is closed. FIG. 9A is a state when the front cover is open, and FIG. 9B is a state where the first and second locking plates are the first. A state when the first and second locking members are overcome, (C) indicates a standby state.

  First, when the front cover 6 is open, the cover engaging / disengaging portion 10 is in the position of the first locking member 13 by the urging force of the spring 15 and slides as shown in FIG. The pin 30 is in a state of being locked to the vertical portion 42 a of the locking portion 41.

  Here, when the front cover 6 is being closed, the tip of the second locking plate 23 comes into contact with the inclined portion of the locking portion of the second locking member 17 and slides along the inclined portion. The cover engaging / disengaging part 10 is rotated counterclockwise. As a result, the lock release lever 19 is urged to the rear side of the automatic machine 1, and accordingly, the lock release lever 26 is also urged to the rear side of the automatic machine 1. In the operation unit 25, the lock release lever 26 receives the urging force toward the rear side of the automatic machine 1, so that the slide pin 30 extends along the guide holes 37 and 38 as shown in FIG. Will rise.

  When the tip of the second locking plate 23 gets over the top of the inclined portion of the locking portion of the second locking member 17, the cover engaging / disengaging portion 10 is returned to the front lock position by the urging force of the spring 15. . Accordingly, the operation unit 25 also returns its lock release lever 26 to the front lock position, so that the operation unit 25 enters a standby state as shown in FIG.

  Similarly, when the front end of the first locking plate 22 of the front cover 6 gets over the first locking member 13, the lock release lever 26 and the sliding pin 30 of the operation unit 25 are also shown in FIG. ) To (C).

  With the cover lock device configured as described above, the front cover 6 in the front lock state is brought into the front first unlock state and the front second lock state by simply pulling the pulling bracket 29 from the rear side of the automatic machine 1. Can do. Next, the cover engaging / disengaging part 10 in the front second locked state brings the front cover 6 into the front second unlocked state by an operation from the front side of the automatic machine 1. As a result, even if the unlocking operation is performed from the rear side of the automatic machine 1, there is no danger of the front cover 6 jumping up by the gas spring. It becomes possible.

Note that various modifications can be made to the above-described embodiment without departing from the gist of the embodiment.
Further, the above-described embodiments can be modified and changed by those skilled in the art, and are not limited to the exact configurations and application examples described.

DESCRIPTION OF SYMBOLS 1 Automatic machine 2 Screen 3 Card insertion slot 4 Passbook insertion slot 5 Banknote transaction opening 6 Front cover 7 Rear door 10 Cover engagement / disengagement part 11 Fixing bracket 12 Shaft 13 First locking member 14 Locking part 15 Spring 16 Connecting member 17 Second locking member 18 Touch portion 19 Lock release lever 20 Long hole 21 Slide pin 22 First locking plate 23 Second locking plate 24 Oscillating shaft 25 Operation portion 26 Lock release levers 27 and 28 Fixing Metal fitting 29 Pull metal fitting 30 Sliding pin 31 Spring 32, 33 Washer 34, 35 E-type retaining ring 36 Through hole 37, 38 Guide hole 39 Handle member 40 Locking member 41 Locking portion 42 Inclined portion 42a Vertical portion 43, 44 Through Hole

Claims (9)

In a cover lock device for locking or unlocking a flip-up type front cover provided on the front side of the device and supported by a gas spring,
A first locking plate and a second locking plate that are spaced apart in the opening / closing direction at the bottom of the front cover;
The front cover is locked by being locked with the first locking plate and the second locking plate, and is locked with the first locking plate and the second locking plate. A cover engagement / disengagement unit for releasing the front cover by releasing the lock,
An operation unit that is disposed on the rear side of the device and that is linked to the cover engagement / disengagement unit to operate the release operation of the cover engagement / disengagement unit with the first engagement plate from the rear side of the device. When,
The release operation of the locked state with the second locking plate at the cover engaging / disengaging portion can be performed by opening the front cover by the releasing operation of the locked state with the first locking plate. A cover lock device characterized in that it is carried out through a gap.   The cover engaging / disengaging portion includes a first locking member that locks with the first locking plate when the front cover is closed, the first locking plate, and the first locking member. A second locking member that locks with the second locking plate when the locked state is released, and the first locking member and the second locking member are connected to the first locking member. A first urging member for urging the plate and the second locking plate in a locked state, and the first locking plate coupled to the first locking member by the operating portion. And a first unlocking lever for urging the first locking member in a direction to release the locked state between the first locking member and the first locking member. Cover lock device.   The cover engaging / disengaging portion arranges the first locking members on both sides of the device in the width direction, arranges the second locking members at an intermediate position of the first locking members, and 3. The cover lock device according to claim 2, wherein the one locking member and the second locking member are connected to each other by a connecting member. 4. The cover lock device according to claim 3, wherein the first locking member is disposed so as to overlap the second locking member when viewed in the extending direction of the connecting member.   The second locking plate is formed such that a front end of the second locking plate protrudes from the first locking plate when the front cover is opened and reaches the locking portion of the second locking member. The cover lock device according to claim 1. The operating unit includes a second unlocking lever of which one end is connected to the first unlocking lever, a sliding pin which is inserted into a through hole formed in the other end of the second release lever A fixing bracket having an oval guide hole through which the slide pin is inserted with the long axis inclined with respect to the extending direction of the second unlocking lever, and the second unlocking lever and the fixing A third locking member is formed between the metal fitting and the second unlocking lever so as to be able to advance and retract in the extending direction. And a second urging member for urging the third locking member in the direction of the cover engaging / disengaging portion by engaging both ends with the pulling member and the fixing member. And pulling the pull bracket from the rear side of the device. The first locking member releases the locked state with the first locking plate and immediately after the locked state between the first locking member and the first locking plate is released. 3. The cover lock device according to claim 2, wherein the engagement state between the sliding pin and the third locking member is released.   When the sliding pin moves between both ends of the guide hole, the distance in the pulling direction of the pulling bracket is such that the first lock release lever is connected to the first locking plate and the first locking member. The cover lock device according to claim 6, wherein the first lock release lever is longer than a distance traveled when the locked state is released.   The third locking member is formed so that a locking portion protrudes on a side engaged with the sliding pin, and an inclined portion is formed on a distal end side of the locking portion on the cover engaging / disengaging portion side. The cover lock device according to claim 7, wherein a vertical portion extending in a direction perpendicular to a pulling direction of the pulling fitting is formed on a side opposite to the tip side. The fixing bracket includes a first fixing bracket and a second fixing bracket each having a wall in which the guide hole is formed, and the third locking member is the second unlocking lever and the first fixing bracket. The cover lock device according to claim 6 , wherein the cover lock device is disposed between the fixed metal fitting and the fixing bracket.

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