JP2009084830A - Lock - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lock constituted as an article and mountable without changing an existing keyhole. <P>SOLUTION: The lock 10 attachable to a locking object has a back face fixable to an outer surface of a frame portion of a cover or the like of the locking object, and comprises a locking member 13 lockable to a movable member of a door, a drawer, or the like to be locked, a pressing means 20 for pressing the locking member 13, and a first elastic member. The locking member 13 has a base part 13a and a tip part 13b, and when the pressing means 20 presses the base part 13a, the locking member 13 is rotated to obtain a locked state of locking the movable member of the door, the drawer, or the like to be locked by the tip part 13b. The first elastic member energizes the locking member 13 to rotate in a direction into an unlocking state of not locking the movable member of the door, the drawer, or the like to be locked. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a lock that can be attached to a lock target.

Conventionally, as a lock that can be easily attached to an existing storage device, a key unit with a lock pin protruding is configured so that it can be externally attached to the drawer of the storage device in advance, and a lock unit that receives and latches the lock pin is provided. In some cases, it is configured so that it can be externally attached to the storage device in advance, and a controller is installed on the upper side of the storage device so that locking and unlocking can be controlled using a card (see, for example, Patent Document 1).
Further, there is an electronic lock for an open / close door that is locked and unlocked by an input operation of an IC card or the like using a drive motor (see, for example, Patent Document 2). In this case, a motor, a reduction gear mechanism that transmits the driving of the motor by an output gear, an output gear that is rotationally driven by the reduction gear mechanism, a dead bolt that is linearly reciprocated by the rotation of the output gear, An opening leg spring that urges rotation of the output gear in the locking direction / unlocking direction, a control unit that electrically controls the rotation of the motor, and a locked state or an unlocked state that is electrically connected to the control unit. And a switch device for detecting and stopping the driving of the motor via the control unit.
JP 2001-349119 A JP 2001-234649 A

However, in the above-described conventional example of Patent Document 1, since the key unit attached to the drawer side and the lock unit attached to the storage device are divided into two parts, it is necessary to install each of the two parts. was there.
Further, since the conventional example of Patent Document 2 is for exchanging with an existing key, there is a problem that additional work for exchanging an existing keyhole is required.
Therefore, the problem to be solved by the present invention is to solve the above-mentioned problems and to provide a lock that is configured as one article and can be mounted without replacing an existing keyhole.

  In order to solve the above problems, the invention described in claim 1 is a lock that can be attached to a lock target, and the back surface of the lock includes a frame portion (including a side plate, a top plate, etc.) of the cover to be locked. A locking member that can be fixed to an outer surface and that can lock a movable member such as the door to be locked and a drawer, a pressing means that pushes the locking member, and a first elastic member, and the locking member includes a base portion The locking member is rotated by the pressing means pressing the base, and the locking member locks the movable member such as the door to be locked or the drawer by the tip, The one elastic member is a lock characterized in that the locking member is biased so as to rotate in a unlocking state in which the movable member such as the door to be locked and the drawer is not locked.

  According to the first aspect of the present invention, when the pressing means pushes the base of the locking member, the distal end of the locking member rotates to lock the movable member such as the door to be locked or the drawer. It becomes a state. On the other hand, since the first elastic member urges the locking member to be in an unlocked state, when the pressing means does not press the base of the locking member, the locking member It will be in the unlocked state which does not latch movable members, such as a door of a lock target, and drawer.

  The invention according to claim 2 is the lock according to claim 1, wherein the pressing means includes a control unit, a motor, a speed reduction mechanism (including a worm gear), a screw member (including a ball screw), and a slider. The control unit controls the rotation of the motor, the speed reduction mechanism decelerates the rotation of the motor and transmits it to the screw member, and the slider moves along the screw member by the rotation of the screw member. The lock is characterized by pressing the base of the locking member.

  According to a second aspect of the present invention, the motor rotates under the control of the control unit, and the rotation of the motor is decelerated by the speed reduction mechanism and transmitted to the screw member. Then, by the rotation of the screw member, the slider moves along the screw member and pushes the base of the locking member.

  Further, the invention described in claim 3 is the lock described in claim 2, wherein the control unit is controlled by an IC-equipped member (including an IC card, an IC tag, etc.). .

  According to the third aspect of the present invention, the controller can be controlled by the IC-equipped member to rotate the motor.

  Furthermore, the invention according to claim 4 is the lock according to any one of claims 1 to 3, further comprising a back surface member and a second elastic member constituting the back surface of the lock, 2 A portion other than the elastic member is a lock body, and the back surface member is slidably attached to the lock body and can be fixed to an outer surface of a frame portion such as a cover to be locked. The direction is the same as the direction in which the pressing means pushes the locking member and the opposite direction to the pushing direction, and one end of the second elastic member is supported by the back member (fixed and fixed). And the other end of the second elastic member is supported by the lock body (including both the case where it is fixed and the case where it is not fixed). The member biases the lock body Direction in which the second elastic member for biasing the lock body is a lock, wherein said pressing means is the same direction as the direction to push the locking member.

According to the invention of claim 4, the lock can be fixed to the frame portion by fixing the back surface member of the lock to the outer surface of the frame portion such as a cover to be locked. The movable member such as the door to be locked and the drawer can be locked by the locking member of the lock body of the lock.
In addition, since the second elastic member urges the lock body in “the same direction as the pressing means pushes the locking member”, the lock body normally has the “pressing means is the locking member”. Is pressed in the same direction as the direction in which the pressing member is pressed. However, when the locking member is pressed in a direction opposite to the “direction in which the pressing means presses the locking member”, the lock body of the second elastic member It can slide and move in the “opposite direction in which the pressing means pushes the locking member” against the urging force.

According to the first aspect of the present invention, the lock is configured as one article, and can be attached to the lock target without exchanging the existing keyhole.
Furthermore, according to the invention described in claim 2, together with the effect of the invention described in claim 1, the lock described in claim 1 can be easily configured.
Further, according to the invention described in claim 3, in addition to the effect of the invention described in claim 2, the unlocking and locking of the lock can be performed by the IC-equipped member.
Furthermore, according to the invention of claim 4, in addition to the effects of the inventions of claims 1 to 3, the locking member of the lock is positioned in the locked state without locking the movable member such as the door to be locked and the drawer. In this case, when the movable member such as the door to be locked or the drawer is accidentally moved to collide with the locking member of the lock, the impact received by the locking member can be reduced.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 shows a partially cut front view of the lock according to the embodiment of the present invention, FIG. 2 shows a lower surface of the lock of FIG. 1, FIG. 3 shows a rear surface of the lock of FIG. FIG. 5 shows the internal structure seen from the back side of FIG. 3, and FIG. 6 shows the internal structure seen from the bottom side of FIG. 7 shows a state in which the locking member and the like in FIG. 5 are seen obliquely, FIG. 8 shows an internal structure seen obliquely from the back side in FIG. 4, and FIG. 9 shows the locking member in FIG. 10 shows a stationary mechanism of the lock body of FIG. 1, and FIG. 11 shows a circuit block of the lock of FIG. 12 shows a locked state of the lock of FIG. 1, FIG. 13 shows a state seen obliquely from the back side of the lock of FIG. 12, and FIG. 14 shows a case where an impact is applied to the locking member of the lock of FIG. Indicates.

The lock 10 shown in FIG. 1 can be attached to the lock target 1 (see FIG. 12), and the back surface of the lock 10 is a double-sided tape and screw on the outer surface 2 (see FIG. 12) of the frame portion such as a cover of the lock target 1. It can be fixed by, for example. The lock 10 includes a door 13 to be locked, a locking member 13 that can lock the movable member 3 (see FIG. 12) such as a drawer, a pressing unit 20 that presses the locking member 13, and a first elastic member 14 (see FIGS. 7 and 7). 9 (for example, a torsion spring).
As shown in FIG. 8, the locking member 13 has a base portion 13a and a tip portion 13b. When the pressing means 20 pushes the base portion 13a, the locking member 13 rotates and the tip portion 13b can move a door, a drawer, and the like. The locked state which locks the member 3 is set (see FIG. 12). And the 1st elastic member 14 is urging | biasing so that it may rotate in the direction which makes the latching member 13 an unlocking state. Specifically, as shown in FIG. 9, one end of the base portion 13a of the locking member 13 is disposed so as to be rotatable about the shaft 13e, and the shaft 13e is supported by the frame 11b (see FIGS. 7 and 8). Has been. And the front-end | tip part 13b of the latching member 13 is couple | bonded with the other end part of the base 13a.

As shown in FIG. 1, the frame 11 b is fixed to the inner surface of the cover 12 by screws (not shown) through holes 11 c formed in the projecting portions at both ends of the frame 11 b.
As shown in FIG. 7, the frame 11 b is formed in a frame shape that holds the locking member 13. A first projecting piece 13 c is formed at one end of the locking member 13, and a second projecting piece 13 d is formed at the other end of the locking member 13. The first overhanging piece 13c and the second overhanging piece 13d are disposed in the vicinity of the shaft 13e. One end of the first elastic member 14 presses the first overhanging piece 13c (presses in the direction in which the locking member 13 is unlocked), and the other end of the first elastic member 14 is the frame 11b. The depression is pressed. In addition, since the first overhanging piece 13c and the second overhanging piece 13d are locked in the recess of the frame 11b, the first overhanging piece 13c in which the recess of the frame 11b is urged by the first elastic member 14 and It is a stopper for the second overhanging piece 13d.

As shown in FIG. 5, the pressing means 20 includes a control unit 21 (FIG. 5 shows a substrate of the control unit 21), a motor 22, a speed reduction mechanism 23, a screw member 24, and a slider 25. The control unit 21 controls the rotation of the motor 22, the speed reduction mechanism 23 decelerates the rotation of the motor 22 and transmits it to the screw member 24, and the slider 25 moves along the screw member 24 by the rotation of the screw member 24 and is locked. The base 13a of the member 13 is pushed. In addition, since the speed reduction mechanism 23 decelerates and rotates the screw member 24, the screw member 24 hardly rotates the speed reduction mechanism 23.
Specifically, the slider 25 is screwed into the screw member 24 and includes a first protrusion 25a and a second protrusion 25b. When the motor 22 rotates forward and the slider 25 presses the base portion 13a (see FIG. 9) of the locking member 13 to enter the locked state (see FIG. 13), the first protrusion 25a presses the lock detection switch 42, and the motor The second protrusion 25b pushes the unlocking detection switch 43 when the slider 22 rotates in the reverse direction and the slider 25 moves toward the speed reduction mechanism 23 and enters the unlocked state. When the lock detection switch 42 is pressed, a signal that detects the locked state is sent to the control unit 21, and when the unlocking detection switch 43 is pressed, a signal that detects the unlocked state is sent to the control unit 21. .
In the locked state, as shown in FIG. 13, the side surface of the slider 25 (the surface parallel to the moving direction of the slider 25) is pressed against the base portion 13a of the locking member 13 (see FIG. 9). Even if the locking member 13 is pushed, the slider 25 is pushed and does not move.

  In addition, as shown in FIG. 11, the control unit 21 is controlled by the IC-equipped member 50. Further, as shown in FIG. 1, a battery 26 is disposed inside the cover 12. The battery 26 is a power source for the control unit 21 and the motor 22. Specifically, the motor 22 can be switched between forward rotation and reverse rotation by a relay of the control unit 21. The push button switch 41 is a trigger switch and is turned on (or off) when pressed. Further, it is turned on (or off) when the lock detection switch 42 is pressed, and is turned on (or off) when the lock detection switch 43 is pressed.

(When locking from the unlocked state)
As shown in FIG. 5, in the unlocked state, the unlock detection switch 43 is pressed, and the lock detection switch 42 is not pressed. In this state, the control unit 21 receives and authenticates a radio signal from the IC-equipped member 50 (detects and authenticates an ID signal emitted from the IC-equipped member 50), and further, when the push button switch 41 is pressed, the control is performed. The unit 21 rotates the motor 22 in the normal direction and performs a locking operation. When the lock detection switch 42 is pressed, the motor 22 is stopped and the lock state is set. In the locked state, the unlock detection switch 43 is not pressed.
When the lock detection switch 42 is pressed, the motor 22 is connected to the battery 26 so that it can be reversed by the relay of the control unit 21 after a lapse of some time (for example, several seconds) by the timer of the control unit 21.
(When unlocking from locked state)
In the locked state, the lock detection switch 42 is pressed and the unlock detection switch 43 is not pressed. In this state, the control unit 21 receives and authenticates the radio signal from the IC-equipped member 50, and when the push button switch 41 is pressed, the control unit 21 reverses the motor 22 and performs the unlocking operation. When the unlock detection switch 43 is pressed, the motor 22 is stopped and the unlocked state is entered. In the unlocked state, the lock detection switch 42 is not pressed.
When the unlock detection switch 43 is pressed, the motor 22 is connected to the battery 26 so that it can be rotated forward by the relay of the control unit 21 after a lapse of some time (for example, several seconds) by the timer of the control unit 21. .

Furthermore, as shown in FIG. 4, the lock 10 includes a back surface member 30 (see FIG. 3) and two second elastic members 31 (see FIG. 8) that constitute the back surface of the lock 10. A portion of the lock 10 other than the “back surface member 30 and the second elastic member 31” is referred to as a lock body 11. 11a is a back plate of the lock body 11, and is fixed to the rib of the cover 12 by two screws 11d.
The back member 30 is slidably attached to the lock body 11. Specifically, a first edge 12 a and a second edge 12 b are formed on the back member 30 side of the cover 12 of the lock body 11. The back member 30 is sandwiched between the back plate 11a of the lock body 11 and the edges 12a and 12b. The first edge 12a and the second edge 12b are parallel to each other, and the back member 30 is slidable along the first edge 12a and the second edge 12b. That is, the back member 30 has a first end 30a and a second end 30b. The first end 30a and the second end 30b are parallel to each other,
A step is formed between portions of the back surface member 30 other than the “first end portion 30a and the second end portion 30b”. When the back member 30 slides, the first end 30a slides along the first edge 12a, and the second end 30b slides along the second edge 12b.

Further, the back member 30 can be fixed to the outer surface 2 (see FIG. 12) of a frame portion such as a cover of the lock target 1 with a double-sided tape, a screw or the like. One end of the second elastic member 31 is supported by the back member 30, and the other end of the second elastic member 31 is supported by the lock body 11 (see FIG. 8). The second elastic member 31 urges the lock body 11 in the “same direction as the pressing means 20 pushes the locking member 13”.
Specifically, as shown in FIG. 8, the second elastic member 31 includes a shaft 31a, a coil spring 31b, an end 31c, and a ring-shaped member 31d. The shaft 31a passes through the coil spring 31b and the ring-shaped member 31d, and the shaft One end of 31a is fixed to the end 31c, and the end 31c is fixed to the back plate 11a (see FIG. 4) of the lock body 11 with a screw 11e. At this time, as shown in FIG. 4, the protrusion 31ca of the end 31c is fitted into the hole 11aa of the back plate 11a.
Further, as shown in FIG. 4, a support portion 30e is formed on the back surface member 30, and a ring-shaped member 31d is supported on the support portion 30e (including both cases where it is fixed and not fixed). . One end of the coil spring 31b pushes the ring-shaped member 31d, and the other end of the coil spring 31b pushes the end portion 31c. For this reason, when the length of the coil spring 31b changes, the ring-shaped member 31d moves along the shaft 31a.
In FIG. 4, the sliding direction of the back member 30 is the same direction as the direction in which the pressing means 20 (FIG. 8) presses the locking member 13 and the opposite direction to the pressing direction.

  Further, as shown in FIG. 8, a detachable lid 15 is disposed on the cover 12. The lid 15 and the cover 12 constitute an outer frame of the lock body 11. The lid 15 is disposed on the side surface of one end of the lock body 11, and the locking member 13 is disposed on the side surface of the other end of the lock body 11 (opening 12 d of the cover 12). Specifically, the protrusions 15a at both ends of the lid 15 are slidably attached to the grooves 12c at both ends of the cover 12, respectively. FIG. 8 shows the groove 12c and the protrusion 15a at one end.

  As shown in FIG. 10, the back member 30 has a lock portion 30c, and the lock portion 30c has a groove 30d. In addition, a lock member 16 is fixed to the recess in front of the lid 12. The lock member 16 (see FIG. 2) includes a key 16a (having a key hole 16c) and a lock piece 16b. The lock piece 16b is locked in the groove 30d by the key 16a (the state shown by the solid line in FIG. 10) and the lock piece 16b is not locked (the state shown by the two-dot chain line in FIG. 10). Can be brought into a non-locking state). When the lock piece 16b is locked in the groove 30d, the cover 12 and the back surface member 30 are fixed by the lock member 16. However, when the lock piece 16b is not locked in the groove 30d, the cover 12 and the back surface member 30 are fixed. Since the lock main body 11 including the cover 12 can slide with respect to the back surface member 30, the lock body 11 including the cover 12 can be detached from the back surface member 30.

The lock 10 having the above configuration operates as follows.
When the pressing means 20 pushes the base portion 13a of the locking member 13, the distal end portion 13b of the locking member 13 rotates to enter a locked state in which the movable member 3 such as the door or the drawer is locked. On the other hand, since the first elastic member 14 urges the locking member 13 to be in the unlocked state, when the pressing means 20 does not press the base portion 13a of the locking member 13, the locking member 13 is It will be in the unlocked state which does not latch movable members 3, such as the door and drawer.

  Further, the motor 22 is rotated under the control of the control unit 21, and the rotation of the motor 22 is decelerated by the deceleration mechanism 23 and transmitted to the screw member 24. Then, as the screw member 24 rotates, the slider 25 moves along the screw member 24 and pushes the base 13 a of the locking member 13.

The back member 30 of the lock 10 can be fixed to the outer surface 2 of the frame portion such as the cover of the lock target 1, and the lock 10 can be fixed to the outer surface 2 of the frame portion. The movable member 3 such as the door or the drawer of the lock target 1 can be locked by the locking member 13 of the lock body 11 of the lock 10.
In addition, since the second elastic member 31 urges the lock body 11 against the back member 30 in the “same direction as the pressing means 20 pushes the locking member 13”, the lock body 11 normally has the “pressing” Although the means 20 is pushed in the same direction as the direction in which the locking member 13 is pressed, as shown in FIG. 14, the locking member 13 is moved by the movable member 3 in the “direction in which the pressing means 20 pushes the locking member 13”. When the lock body 11 is pushed in the opposite direction, the lock body 11 can slide and move in the "opposite direction in which the pressing means 20 pushes the locking member 13" against the urging force of the second elastic member 31. .
Therefore, when the locking member 13 of the lock 10 is in the locked position without locking the movable member 3 such as the door or drawer of the locking target 1, the door or drawer of the locking target 1 can be moved by mistake. When the member 3 is moved to collide with the locking member 13 of the lock 10, the impact received by the locking member 13 of the lock 10 can be reduced.

In the above-described embodiment, the push button switch 41 may be omitted, and the lock 10 may be locked and unlocked only by the IC-equipped member 50.
Further, the form of the IC-equipped member 50 is not limited to an IC card (including both a non-contact type and a contact type) and an IC tag, and the outer shape thereof may be an arbitrary form (for example, a button form).
For example, a non-contact type IC card has a coil (which serves as an antenna) and an IC chip inside the card, so that the IC card can be locked by simply holding it over the magnetic field generated from the reader / writer of the control unit 21. Ten control units 21 can be controlled. In this regard, the non-contact type IC member 50 is the same.
Moreover, although the basic form of the outer frame of the lock | rock 10 comprised by the cover 12 and the lid | cover 15 is what rounded the corner | angular part of a rectangular parallelepiped, it is not limited to this, Arbitrary shapes may be sufficient.

It is a front view which partially fractures | ruptures and shows the front of the lock concerning embodiment of this invention. It is a bottom view of the lock | rock of FIG. It is a rear view of the lock | rock of FIG. It is the perspective view seen from the back side of the lock | rock of FIG. FIG. 4 is a partial view showing an internal structure viewed from the back side of FIG. 3. FIG. 3 is a partial view showing an internal structure viewed from the lower surface side of FIG. 2. It is the perspective view which looked at the locking member etc. of FIG. 5 diagonally. It is a perspective view which shows the internal structure seen diagonally from the back side of FIG. FIG. 9 is a partial view showing the locking member of FIG. 8. It is a fragmentary figure which shows the stationary mechanism of the lock main body of FIG. It is a block diagram of the circuit of the lock | rock of FIG. It is explanatory drawing which shows the locking state of the lock | rock of FIG. It is the perspective view seen from the back side of the lock | rock of FIG. It is explanatory drawing which shows the case where an impact is added to the locking member of the lock | rock of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Lock object 2 Outer surface of lock target frame 3 Lockable movable member 10 Lock 11 Lock body 13 Locking member 13a Base part 13b Tip part 14 First elastic member 20 Pressing means 21 Control part 22 Motor 23 Deceleration mechanism 24 Screw member 25 Slider 30 Back member 31 Second elastic member 50 IC-equipped member

Claims (4)

A lock that can be attached to a lock object,
The back surface of the lock can be fixed to the outer surface of the frame portion such as the cover to be locked,
A door to be locked, a locking member capable of locking a movable member such as a drawer, a pressing means for pressing the locking member, and a first elastic member,
The locking member has a base portion and a distal end portion. When the pressing means pushes the base portion, the locking member rotates, and the distal end portion locks a movable member such as a door to be locked or a drawer. Become locked,
The said 1st elastic member is urging | biasing so that it may rotate in the direction which sets the said locking member to the unlocking state which does not latch movable members, such as the door and drawer | drawing-out object to be locked. The lock according to claim 1,
The pressing means includes a control unit, a motor, a speed reduction mechanism, a screw member, and a slider. The control unit controls the rotation of the motor, and the speed reduction mechanism decelerates the rotation of the motor and transmits it to the screw member. Is moved along the screw member by the rotation of the screw member and pushes the base of the locking member. A lock according to claim 2,
The control unit is controlled by an IC-equipped member such as an IC card or an IC tag. The lock according to any one of claims 1 to 3,
Furthermore, the back surface member and the 2nd elastic member which comprise the back surface of a lock are provided,
A portion other than the back member and the second elastic member is a lock body,
The back member is slidably attached to the lock body, and can be fixed to an outer surface of a frame portion such as a cover to be locked,
The sliding direction of the back member is the same direction as the direction in which the pressing means pushes the locking member and the direction opposite to the pushing direction,
One end of the second elastic member is supported by the back surface member, the other end of the second elastic member is supported by the lock body, and the second elastic member biases the lock body,
The direction in which the second elastic member biases the lock body is the same as the direction in which the pressing means pushes the locking member.

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