JP6204774B2 - padlock - Google Patents

Description

  The present invention relates to a padlock that can be opened and closed using a key card.

As a lock device used for a padlock, a lock (for example, refer to Patent Document 1) in which a lock member such as a ball that engages a shackle is swung by rotating a lock cylinder by a key operation is widely known. Card-locked padlocks have been proposed
(For example, refer to Patent Document 2). A padlock using a key card has a card lock type unit in the case. As described in detail in Patent Document 2, the card-type lock unit is provided inside when a code card is set inside and an appropriate key card corresponding to the code card is inserted into the unit. A shear line is formed by the pin being provided, and the slider can be moved, and the lock member driven by the slider is disengaged from the shackle, thereby enabling unlocking. The key card can be removed from the unit by pulling the key card from the unlocked state and returning the slider to its original position. During this time, the lock member is engaged with the shackle and the locked state is reached. Become.

  In the case of the padlock described in Patent Document 2, when an appropriate key card is inserted and the slider (actuator) is raised, the actuating plate connected to the slider rises, and the inclined cam surface formed at the tip of the actuating plate The lock member moves laterally by the action of the cam surface of the lock member (部 材). As a result, the front end of the lock member is extracted from the engagement recess (notch) formed on the side surface of the front end of the shackle. become. When the tip of the shackle is pushed into the receiving hole and the key card is pulled, the operating plate descends via the slider, the lock member is pushed by the spring and protrudes in the direction of the receiving hole, and the tip of the locking member is the engagement recess of the shackle. The key card can be taken out of the unit because the slider is returned to the original position while being engaged with the lock. However, in the padlock shown in Patent Document 2, when the shackle is pulled out to the unlocked position, the tip of the lock member (閂) faces the space of the receiving hole after the tip of the shackle is pulled out. Yes. Therefore, the distal end portion of the lock member (可能) can protrude into the receiving hole even if the shackle does not return to the locking position. Therefore, even when the shackle is in the unlocked position, it is possible to remove the key card from the unit by moving the lock member and returning it to the position based on the slider. When such a situation occurs, there is a risk of misunderstanding that it is locked due to the fact that the key card is in hand even though it is not locked.

  In the padlock described in Patent Document 2, the card-type lock unit for exchanging the code card is fixed with a stopper so that it can be removed from the case using a tool when the shackle is in the unlocked position. However, this fastener is a small hexagon socket set screw.When fixing or removing the unit, it is necessary to rotate the set screw with a special tool such as a hexagon wrench each time. It is troublesome.

Japanese Patent No. 2911119 (paragraphs 0004 and 0005, FIG. 11) JP 2004-308310 A (claims, paragraphs 0024 and 0026, FIG. 3)

  The problem to be solved by the present invention is that when a padlock that is locked and unlocked by a key card using a card-type lock unit is used to prevent malfunction during locking and unlocking, and to replace a code card To provide a padlock in which the unit can be easily detached from the case.

  According to the present invention, a lock body incorporating a card type lock unit is detachably inserted into a case having a base end receiving hole for receiving the base end portion of the shackle and a tip receiving hole for receiving the tip end portion of the shackle, A ball receiving hole is formed in the lock body so as to face the base end receiving hole and the tip receiving hole, and the engagement recess formed in the shackle base end and the shackle distal end when moved outwardly into the ball receiving hole. When the ball is engaged and moved inward, the ball is slidably accommodated so as to come out of the engagement recess, and the protruding cam surface that presses the ball outward between the balls and the ball moves inwardly. A lock plate having an allowable pull-in cam surface is movably provided. The lock plate is connected to a slider that moves when an appropriate key card is inserted into the card type lock unit, and the ball is locked. A padlock is provided, wherein a contact surface is provided at the base end of the shackle so that the ball does not contact and move outward when it is on the retracting cam surface of the seat, and the above-mentioned problems are solved. . The cam surface of the lock plate rises when a key card is inserted from below the card-type lock unit and the slider is pushed in, the pull cam surface faces the ball, the key card is pulled downward, and the slider is pulled back The retracting cam surface and the protruding cam surface are continuously provided along the moving direction of the lock plate so that the protruding cam surface is lowered and presses the ball outward while facing the ball.

  According to the present invention, a locking portion is formed in the case, and a latch rod provided with a locking claw capable of engaging with the locking portion at one end is movably provided on the lock body, and the lock body is mounted on the case. When inserted, the latch hook is urged so that the latch pawl engages with the lock portion, and a stopper surface is provided at the other end of the latch hook so as to face the contact surface of the shackle, and the shackle is attached to the shackle. A latch that forms a receiving surface that receives the stopper surface when moved to the unlocked position, and that can move the latch hook in a direction away from the locking portion of the case when the shackle is moved to the unlocked position. The padlock is provided in which an operation piece is provided on the lock body.

  The present invention is configured as described above, and a lock body incorporating a card-type lock unit is detachable in a case having a base end receiving hole for receiving the base end portion of the shackle and a tip receiving hole for receiving the tip end portion of the shackle. Inserted and formed in the lock body a ball receiving hole facing the base end receiving hole and the tip receiving hole, and formed in the shackle base end and the shackle tip when moved outwardly into the ball receiving hole. A ball is slidably accommodated so as to come out of the engagement recess when engaged in the engagement recess and moved inward, and a protruding cam surface for pressing the ball outward between the balls and the ball inward A lock plate having a pull-in cam surface that is allowed to move is movably provided. The lock plate is connected to a slider that moves when an appropriate key card is inserted into the card-type lock unit. Since the abutment surface is provided at the base end of the shackle so that the ball does not abut and move outward when the lug is on the retraction cam surface of the lock plate, inserting an appropriate key card into the unit and pushing it in, The lock plate moves through the slider, the pull-in cam surface of the lock plate faces the ball, the ball can escape from the engagement recess of the shackle, and the shackle can be pulled out of the case and unlocked. On the other hand, when the shackle is pushed into the receiving hole of the case from the unlocked state and the key card is pulled and the lock plate is returned to the original position via the slider, the ball is pushed outward by the protruding cam surface of the lock plate. The shackle can be locked by engaging with the engaging recess of the shackle.

  In the padlock of the present invention, in the unlocked state, the ball cannot move outward because the side surface is in contact with the contact surface formed at the proximal end of the shackle. Therefore, even if the key card is pulled out of the unit in the unlocked state, the end of the protruding cam surface of the lock plate hits the ball, and the lock plate and the slider connected to the lock plate cannot be moved. The card cannot be removed from the unit. Therefore, there is no possibility of misunderstanding that the key card is taken out and locked when the shackle is in the unlocked position.

  In addition, the case is provided with a locking portion, a latch hook provided at one end with a locking claw that can be engaged with the locking portion is provided on the lock body, and the locking claw is inserted when the lock body is inserted into the case. The latch rod is urged so as to engage with the locking portion, and a stopper surface opposite to the contact surface of the shackle is provided at the other end of the latch rod, and the stopper is moved when the shackle moves to the unlocking position. A receiving surface for receiving the surface is formed in the shackle, and when the shackle is moved to the unlocking position, a latch operating piece capable of moving the latch hook in a direction away from the locking portion of the case is attached to the lock body. When provided, the lock claw of the lock main body can be engaged with the lock portion of the case and the lock main body can be easily held in the case simply by inserting the lock main body into the case. When replacing the code card, when the latch operating piece is operated in the unlocked state, the latch hook can move so that the stopper surface faces the receiving surface of the shackle. The code card inserted into the unit can be exchanged by removing the lock body from the case.

The perspective view which shows one Example of this invention. FIG. Sectional drawing which abbreviate | omitted internal mechanisms, such as a ball | bowl, a pin, and a spring, of a card type lock unit. Explanatory drawing of a locked state. Explanatory drawing of an unlocked state. Explanatory drawing which shows a latch hook part. Explanatory drawing when inserting a lock main body in a case. Explanatory drawing of the state which rotated the latch operation piece.

  1 to 3 show an embodiment of the present invention. As shown in FIG. 2, the padlock of the present invention is inserted into the case in a substantially box-shaped case 1 having an open bottom surface and detachable. The lock body 2 is provided. The case 1 is provided with a substantially U-shaped shackle 3 whose base end 4 is longer than the front end 5 so as to be able to protrude and retract, a base end receiving hole 6 for receiving the base end 4 of the shackle 3, A tip receiving hole 7 for receiving the tip portion 5 is formed. A stopper ring 8 is provided at the end of the base end 4 of the shackle, in the drawing, at the lower end, and the hole of the bracket 9 can be pulled out to a position where the stopper ring 8 contacts the bracket 9 provided in the case 1. 10 is inserted. The shackle 3 may be biased by a spring in the pulling direction (not shown).

  As shown in FIG. 2, engagement concave portions 11 in which a part of the outer diameter of the shackle 4 is recessed are provided on the inner side surfaces of the proximal end portion 4 and the distal end portion 5 of the shackle 3. A contact surface 12 having the same outer diameter as that of the shackle is formed on the lower end side of the engagement recess 11 of the base end portion 4, and further on the lower end side of the contact surface 12 from the outer diameter of the contact surface portion. A small diameter receiving surface 13 is provided.

  The lock body 2 is formed in a shape substantially inscribed in the case 1, and a card type lock unit 14 is incorporated therein. Since the card-type lock unit 14 has a known configuration as described in, for example, Patent Document 2, the description of the structure thereof will not be described in detail. The code card 15a is inserted from the upper insertion port in the inner side opposite to the insertion port, and the code card 15a is set in the unit. When an appropriate key card corresponding to the code card is inserted, the slider 16 in the unit becomes movable, and when the key card 15 is further pushed, the slider 16 moves upward in the embodiment shown in the figure. To do. When the key card 15 is pulled in the pulling direction, the slider 16 moves downward in the embodiment shown in the drawing to return to the original position, and when pulled further, the key card 15 can be taken out from the unit 14.

4 and 5, the lock body 2 is formed with a ball housing hole 17 extending in the lateral direction in the figure so as to face the base end receiving hole 6 and the front end receiving hole 7 of the case. A ball 18 is slidably accommodated in the ball housing hole 17, and when the ball 18 moves outward, the ball 18 is engaged with an engagement recess 11 formed in the base end portion 4 and the distal end portion 5 of the shackle 3. Match. When the ball 18 moves inward from the position moved outward, the ball 18 comes out of the engaging recess 11. Note that one side surface of the ball 18 faces the receiving holes 6 and 7, but is held so as not to drop off by slightly reducing the diameter of the opening end of the ball housing hole 17.

A lock plate 19 is provided between the balls 18 so as to be movable in the vertical direction in the drawing in a direction intersecting the moving direction of the balls. The lock plate 19 includes a protruding cam surface 20 that presses the ball 18 outward, and a retracting cam surface 21 that allows the ball 18 to move inward along the direction of movement of the lock plate 19 . In the embodiment shown, they are continuously provided in the vertical direction via curved surfaces. The lock plate 19 is connected to the slider 16 of the unit 14 and moves up and down together with the slider 16. When the shackle is in the unlocked position and the ball 18 enters the retracting cam surface 21, the depth of the retracting cam surface 21 is adjusted so that the lock plate 19 moves downward and the protruding cam surface 20 Even if the ball 18 is pushed outward, the side surface of the ball 18 comes into contact with the contact surface 12 of the shackle 3, the ball 18 stops at that position, the shackle is in the locked position, and the ball 18 enters the engaging recess 11 of the shackle 3. When facing each other, the depth is such that the ball 18 is pushed out by the protruding cam surface 20 and moved outward to engage the engaging recess 11.

  With the above configuration, when the appropriate key card 15 is inserted and the lock plate 19 is moved upward via the slider 16 of the unit 14, the ball 18 corresponds to the retracting cam surface 21 as shown in FIG. The ball 18 moves inward and comes out of the engaging recess 11, and the shackle 3 can be freely pulled out of the case 1 and unlocked. Further, when the shackle 3 is pushed back into the case 1 from the unlocked state and the key card 15 is pulled to lower the slider 16, the ball 18 is moved outward by the protruding cam surface 20 of the lock plate 19, as shown in FIG. Extruded, engaged with the engaging recess 11 of the shackle 3, and locked.

As described above, when the shackle 3 is in the unlocked position and the key card 15 is pulled out without pushing the shackle 3 back into the case 1, the protruding cam surface 20 of the lock plate 19 connected to the slider 16 is However, since the side surface of the ball 18 is in contact with the contact surface 12 of the shackle 3, the ball does not move outward (see FIG. 5 ). Therefore, since the slider 16 cannot be returned to the original position, the key card 15 cannot be removed from the unit. In this way, since the key card cannot be removed unless the shackle 3 is reliably pushed back into the case 1 and brought into the locked state, it is possible to prevent a malfunction that may be misunderstood as locked.

  As shown in FIG. 2, a locking portion 22 is provided inside the case 1. In FIG. 6, the lock body 2 is provided with a latch bar 23 movably in the lateral direction, and one end of the latch bar 23 is engageable with the locking part 22 and has an inclined surface 24. A nail 25 is formed. The length of the latch rod 23 is such that the stopper surface 26 provided at the other end is in contact with the contact surface 12 of the shackle 3 in the locked position when the locking claw 25 is engaged with the locking portion 22. When facing each other and the shackle 3 is in the unlocked position, the stopper surface 26 enters the receiving surface 13 of the shackle 3 and moves the latch rod 23 in the direction in which the locking claw 25 is detached from the locking portion 22. It is the length that can be made. When the lock body 2 is inserted into the case 1, the latch bar 23 is urged by a spring 27 in a direction guided by the inclined surface 24 so that the locking claw 25 engages with the locking portion 22. . Further, an inner spring 28 is provided on the upper surface of the lock body 2, and when the lock body 2 is inserted into the case 1, the inner spring 28 is pressed against the inner surface of the top portion of the case and is compressed. Accumulate push force.

  The lock body 2 is provided with a latch operation piece 29 for moving the latch bar 23 in a direction in which the locking claw 25 moves away from the locking portion 22 when the shackle 3 is moved to the unlocked position. The latch operation piece 29 shown in the figure is formed in a substantially bell crank shape having a central portion pivotally attached to the lock body 2, the tip of one piece 31 is engaged with the notch 32 of the latch rod 23, and the other This piece 33 extends along the bottom of the lock body 2. A hole 34 is provided in the bottom of the lock body 2 so as to face the piece 33. When the shackle 3 is in the unlocked position, an appropriate rod-like member (not shown) is inserted into the hole 34 and the part 33 is pushed up, whereby the latch operation piece 29 is rotated and the latch rod 23 is retracted and engaged. The pawl 25 can be removed from the locking portion 22.

  Since the latch rod 23 is biased by the spring 27 as described above, as shown in FIG. 7, when the lock body 2 is pushed into the case 1, it is guided by the inclined surface 24 and the locking claw 25 is engaged with the snap. The lock body 2 can be easily held in the case 1 by engaging with the stopper 22. Further, in the unlocked state, as shown in FIG. 8, when the appropriate rod-shaped member is inserted from the hole 34 and the latch operation piece 29 is rotated, the latch rod 23 is moved and the locking claw 25 is disengaged. The lock body 2 is pushed out of the case 1 by the pushing force of the direction spring 28.

DESCRIPTION OF SYMBOLS 1 Case 2 Lock body 3 Shackle 11 Engagement recessed part 12 Contact surface 13 Receiving surface 14 Card-type lock unit 15 Key card 18 Ball 19 Lock plate 20 Projection cam surface 21 Retraction cam surface 22 Locking part 23 Latch hook 25 Locking claw 29 Latch operation piece

Claims (5)

  A lock body incorporating a card type lock unit is detachably inserted into a case having a base end receiving hole for receiving the base end of the shackle and a tip receiving hole for receiving the front end of the shackle, and the base end is inserted into the lock main body. A ball receiving hole is formed opposite to the receiving hole and the tip receiving hole. When the ball receiving hole moves outwardly in the ball receiving hole, it engages with the engaging recess formed in the shackle base end and the shackle tip, and inwardly. A ball is slidably accommodated so as to come out of the engaging recess when moved, and a protruding cam surface that presses the ball outwardly between the balls and a retracting cam surface that allows the ball to move inwardly. The lock plate is movably provided, the lock plate is coupled to a slider that moves when an appropriate key card is inserted into the card-type lock unit, and the ball is a lock plate retracting cam. Padlock, characterized in that side of the ball the ball contact is provided an abutment surface on the proximal end of the shackle so as not to be moved outward when in the.   The retracting cam surface and the projecting cam surface of the lock plate are arranged so that when the slider of the card-type lock unit is pushed in and the lock plate is raised, the retracting cam surface faces the ball, and when the slider is pulled back and the lock plate is lowered, the projecting cam The padlock according to claim 1, wherein the padlock is provided continuously along the moving direction of the lock plate so that the surface faces the ball and presses the ball outward.   A locking portion is formed in the case, and a latch hook having a locking claw that can be engaged with the locking portion at one end is movably provided on the lock body, and the lock body is inserted when the lock body is inserted into the case. The latch rod is urged so that the claw engages with the locking portion, and a stopper surface opposite to the contact surface of the shackle is provided at the other end of the latch rod, and the shackle moves to the unlocked position on the shackle. A receiving surface for receiving the stopper surface, and when the shackle is moved to the unlocking position, the latch operating piece capable of moving the latch rod in a direction to move the locking claw away from the locking portion of the case. The padlock according to claim 1 or 2, wherein the padlock is provided on the main body. The latch operating piece is a bell crank pivotally attached to the lock body, one end piece engages with the notch of the latch rod, and the other end piece extends along the bottom of the lock body. The padlock according to claim 3, wherein a hole is provided facing the piece at the other end. The padlock according to claim 1, wherein the lock body is urged in an escape direction by an inward spring when inserted into the case.

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