JP2011257843A - Anti-theft device for merchandise - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an anti-theft device having an anti-crime tag for preventing theft of merchandise.SOLUTION: A rotor 5 and a ratchet wheel 30 are rotatably incorporated in a drive chamber 4 of a casing 3 with the anti-crime tag, binding wires 6a and 6b are wound or fed by the rotation of the rotor, and the ratchet mechanism is configured to select an operation state and a release state. A slider 33 is extractably/retractably inserted in a cylinder 32 connected to the casing 3, when the slider 33 is advanced to an operation position, the ratchet mechanism is set in an operation state and, when being retreated to an idle position, the ratchet mechanism is set in a release state. Locking means is provided between the slider 33 and the cylinder 32 to lock the slider 33 at the operation position. Only when the locking means is unlocked by an unlocking key, the slider 33 can be moved to the idle position.

Description

The present invention relates to an anti-theft device for preventing merchandise displayed in a store from being stolen by an unauthorized person such as shoplifters and taken out of the store.

Conventionally, in various retail stores or the like, a crime prevention tag is attached to each product in order to prevent the displayed product from being stolen. Therefore, if the product is to be taken out of the store with the security tag attached, a detection device installed at the entrance gate issues an alarm to prevent theft.

However, since the security tag is usually attached to the product with an adhesive and can be peeled off, if it is removed from the product and discarded before being taken out of the store, there is no anti-theft effect.

For this reason, a hanging wire type antitheft device is provided in which a security tag is provided inside the casing, a loop is formed by bending a hanging wire provided in the casing, and the loop is attached to a product. ing.

Such a hanging wire type anti-theft device is hung on a product by passing a hanging wire bent in a loop shape through the bag, for example, in the case of a bag having a product. The hanging wire has a base end fixed to the casing, and after inserting the wire into the attachment location of the product, the wire is bent to return the tip to the casing to form a loop. Insert the tip of the wire into the casing. The tip of the wire is locked so that it cannot be removed when it is inserted into the casing, and cannot be removed without using a special unlocking key.

When a legitimate customer purchases a product, at the cashier counter, the store clerk uses a special unlocking key to remove the tip of the hanging wire from the casing, remove the antitheft device, and then remove the product from the customer. To be handed over.

Japanese Patent Publication No. 2002-74529 Japanese Patent Publication No. 2002-304676

The conventional hanging wire type anti-theft device has a structure in which the distal end portion of the hanging wire whose base end portion is fixed to the casing is inserted into the casing and locked, and is formed by bending the wire. The size of the loop is always the same shape and size. Therefore, the appearance will be poor unless wires with different lengths are used depending on the size of the product. For example, the anti-theft device for attaching to a large bag uses a long wire, so when it is attached to a small bag, the loop formed by bending the wire is too large and displayed. It will damage the beauty of the product. Conversely, an anti-theft device with a short wire cannot be attached to a large product. For this reason, there is an inconvenience that it is necessary to provide another type of anti-theft device with wires having different lengths in the store.

Moreover, since the loop-shaped wires are suspended from the displayed products, not only the appearance is bad, but the wires of the products displayed in the adjacent state may be entangled with each other.

In order to solve the above-mentioned problem, the present invention provides an antitheft device for merchandise configured to be tightened to the outer periphery of the merchandise by winding the wire with a rotor provided on the casing from a state in which a binding wire is wound around the merchandise. I will provide a.

As a result, one anti-theft device can be used for both large and small products, and the binding wire is fastened to the outer peripheral surface of the product, and at the same time, the casing is fixed in close contact with the surface of the product. , The appearance of the displayed products will not be impaired.

Moreover, because of such a binding type, when a plurality of products are sold as a package, there is an advantage that they can also be used as a binding means for binding a plurality of products.

Therefore, the present invention is configured as means, a casing provided with a security tag, a rotatable rotor provided in a driving chamber of the casing, a ratchet wheel that rotates together with the rotor in the driving chamber, and the casing. It comprises operating means for enabling rotation of the rotor from the outside, and at least one binding wire having both ends inserted into the casing from the outside and connected to the rotor, and the binding wire is wound around the outer periphery of the product In the configuration in which the rotor is rotated in the normal state and the binding wire is wound up and tightened by the rotor, a cylinder that forms a guide path communicating with the drive chamber is connected to the casing and is operated close to the ratchet wheel. A slider that can move forward and backward between the position and the idle position that is separated The slider is engaged with the ratchet teeth of the ratchet wheel while being held in the operating position, and is provided with a ratchet claw that allows forward rotation of the ratchet wheel but does not allow reverse rotation. Locking means is provided between the slider and the slider, and the locking means locks the slider so that it cannot be retracted while the slider is advanced to the operating position, and when the unlocking key is inserted into the unlocking path of the slider, the locking means The slider is configured to be unlocked so as to be retractable to the idle position.

The slider is integrally formed of plastic, and a ratchet claw is extended at the tip via a flexible hinge. When the ratchet wheel is rotated forward with the slider held in the operating position, the ratchet claw can be moved. It is configured to be able to advance and retreat with respect to the ratchet teeth by the flexural elasticity of the flexible hinge.

Preferably, the locking means is constituted by a locking claw fixed to the cylinder and a locking arm provided on the slider and swingable in the locking direction and the unlocking direction. The locking arm is provided with a locking hole that is locked to the locking claw, and is provided with a magnetic piece that is elastically biased in the locking direction and can be magnetically attached from the unlocking direction. The locking claw includes a guide surface that pushes the distal end of the locking arm in the unlocking direction when the slider is advanced from the idle position toward the operating position, and the distal end of the locking arm that passes over the guide surface. A claw portion is provided to be locked in the locking hole. The unlocking key includes a permanent magnet that swings the locking arm in the unlocking direction by magnetizing the magnetic piece when inserted into the unlocking path of the slider.

In a preferred embodiment of the present invention, the claw portion of the locking claw forms a latching portion protruding in the forward direction of the slider, and the locking arm is moved in the unlocking direction with the slider facing the operating position. The latching portion is locked to the locking arm so as not to swing. When unlocking, the locking arm can be released from the latching portion by moving the slider from the operating position to the unlocked position further advanced by the unlocking key.

The casing forms a security tag storage part on the bottom surface attached to the surface of the product, and is provided with a lid for opening and closing the storage part. Thereby, when the outer periphery of the product is bundled with the binding wire, the lid is sandwiched between the casing and the product.

In the rotor, the ratchet wheel is integrally formed at the lower end of a cylindrical drive shaft, and the drive shaft is rotatably extrapolated on a support shaft that is erected from the bottom wall of the drive chamber of the casing. At this time, the drive chamber preferably forms a protective wall that is close to the circumferential surface of the ratchet wheel and extends along the circumference of the circumferential surface, except for the communication portion of the guide path. A winding chamber having a diameter larger than that of the protective wall is formed in an upper region of the protective wall.

At this time, it is preferable that a protective plate for covering the ratchet teeth of the ratchet wheel facing the communication portion from above is extended above the ratchet claw while the slider is held in the operating position.

According to the first aspect of the present invention, since the antitheft device 1 is configured to be tightened by winding the binding wires 6a and 6b wound around the outer periphery of the commodity, one antitheft Since the prevention device 1 can be used for both large and small products, and the binding wires 6a and 6b are wound around the casing 3, the appearance of the displayed product is not impaired. Moreover, there is an advantage that it can also be used as a binding band for binding a plurality of products.

At this time, the slider 33 is inserted into the cylinder 32 continuously provided in the casing 3 so as to be movable back and forth between the operating position P1 and the idle position P2, and the ratchet claw 36 provided on the slider 33 is attached to the ratchet wheel 30 built in the casing 3. Since it is configured to be able to select the operation and release of the ratchet mechanism by engaging and disengaging freely, the antitheft device 1 by winding the binding wires 6a and 6b to the product There is an effect that the attachment work and the removal work of the antitheft device 1 by feeding the bundling wires 6a and 6b can be performed easily and simply by changing the position of the slider 33.

Then, the locking means 42 provided between the cylinder 32 and the slider 33 is locked so that the slider 33 cannot be retracted at the operating position P1, and the unlocking key 2 is used to unlock the slider 33. Therefore, there is an advantage that the structure is simple and the operation of locking and unlocking can be easily performed.

According to the second aspect of the present invention, the slider 33 is integrally formed of plastic, and the ratchet pawl 36 that can be advanced and retracted by the flexible hinge 38 is formed. Therefore, the number of parts is small and the assembly is easy. By adopting the structure, it can be provided at low cost, and there is no possibility of failure even if the slider 33 is repeatedly advanced and retracted, and an apparatus having excellent durability can be provided.

According to the third aspect of the present invention, the locking means 42 is provided in the locking claw 44 fixed to the cylinder 32 and the slider 33 and is swingable in the locking direction F and the unlocking direction B. When the slider 33 is moved forward to the operating position P1, the tip of the locking arm 45, which is elastically biased in the locking direction F, passes over the guide surface 48 of the locking claw 44 and is locked. Since the hole 46 is configured to be locked to the locking claw 44, there is an advantage that the locking by the locking means 42 can be performed with one touch only by moving the slider 33 forward from the idle position P2 to the operating position P1. When the rod portion 54 having the permanent magnet of the unlocking key 2 is inserted into the unlocking path 43, the locking means 42 is locked by magnetizing the magnetic piece 47 provided on the locking arm 45 to the permanent magnet. Since the configuration is such that the unlocking key 2 is moved in the backward direction, the slider 33 can be moved to the idle position P2 when the unlocking key 2 is moved in the backward direction. The unlocking of the locking means 42 and the idle position of the slider 33 can be achieved. There is an advantage that the backward movement to P2 can be performed with one touch.

According to the fourth aspect of the present invention, the claw portion 49 of the locking claw 44 forms the latching portion 50 that protrudes in the forward direction of the slider 33, and the slider 33 faces the operating position P1. In this state, the locking arm 45 is locked by the latching portion 50 so as not to swing in the unlocking direction B. Therefore, even if an unauthorized person inserts a permanent magnet into the unlocking path 43, Similarly, the locking arm 45 does not swing in the unlocking direction B. Similarly, even if an attempt is made to swing the locking arm 45 by inserting a wire or the like into the unlocking path 43, the locking arm 45 does not swing in the unlocking direction B. The anti-theft effect is excellent. When the locking means 1 is unlocked by using the unlocking key 2, if the slider 33 is moved to the unlock position P3 by strongly pushing the unlocking key 2, the engagement of the latching portion 50 will be described. Since the unlocking is released, the user of the unlocking key 2 is not forced to perform complicated work, and the unlocking of the locking means 42 and the slider 33 can be easily moved backward.

According to the fifth aspect of the present invention, the antitheft device 1 forms the storage portion 25 of the security tag 24 on the bottom surface of the casing 3 attached to the surface of the product, and the storage portion 25 is covered with the lid 26. Since the lid 26 is sandwiched between the casing 3 and the product in a state where the outer periphery of the product is bound by the binding wires 6a and 6b, the binding wires 6a and 6b are tightened. As long as there is no crime, the crime prevention tag 24 is not likely to be extracted by an unauthorized person and has an excellent crime prevention effect.

According to the sixth aspect of the present invention, the ratchet wheel 30 provided in the casing 3 is formed with the protective wall 39 that is close to the peripheral surface of the ratchet wheel 30. Even when the ratchet teeth 35 are configured to face the winding chamber, the binding wires 6a and 6b during winding or feeding are not bitten by the ratchet teeth 35. And since the winding chamber made into the large diameter is formed in the area | region above this protective wall 39, it becomes possible to ensure sufficient winding capacity.

According to the seventh aspect of the present invention, the protection plate 41 is extended on the upper portion of the ratchet pawl 36 provided on the slider 33, and the ratchet teeth 35 and the upper portion of the ratchet pawl 36 that are engaged with each other are covered with the protection plate 41. Thus, the binding wires 6a and 6b are not bitten between the teeth 35 and the claws 36, and a smooth winding operation is possible.

It is a perspective view showing one embodiment of an antitheft device concerning the present invention. It is a perspective view which shows one example of the state which attached the antitheft device of this invention to the goods. It is a perspective view which shows the antitheft device which concerns on one Embodiment of this invention in a disassembled state. It is a perspective view which shows the back surface of a casing. 1 shows one embodiment of an anti-theft device according to the present invention, in which (A) is a longitudinal sectional view and (B) is a transverse sectional view. The relationship between a ratchet wheel and a ratchet pawl is shown, (A) is a cross-sectional view showing a meshing state, and (B) is a cross-sectional view showing an operating state. It is a perspective view which shows the relation of a casing, a ratchet wheel, and a slider in a section in part. It is a perspective view which shows a slider and an unlocking key. The action when the slider inserted in the cylinder is advanced from the idle position to the operating position is shown. (A) is a longitudinal sectional view showing the state in the idle position, and (B) is the state advanced to the midway position. (C) is a longitudinal cross-sectional view which shows the state advanced to the operation position. It shows the action when the slider is retracted from the operating position to the idle position by the unlocking key. (A) is a longitudinal sectional view showing the state before inserting the unlocking key, and (B) is inserting the unlocking key. FIG. 5C is a longitudinal sectional view showing a state where the locking means is unlocked by doing so, and FIG. 8C is a longitudinal sectional view showing a state where the slider is retracted to the idle position by moving the unlocking key in the pulling direction. It is a perspective view which shows the other example of the state which attached the antitheft device of this invention to the goods.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 shows an anti-theft device 1 and an unlock key 2. As shown in FIGS. 1 to 5, the antitheft device 1 includes a casing 3 made of plastic, a rotatable rotor 5 provided in a drive chamber 4 of the casing 3, and a rotor 5 as described later. A ratchet mechanism that allows rotation R1 but does not allow reverse rotation R2 and at least one binding wire 6 having both ends inserted from the outside of the casing 3 into the interior and coupled to the rotor 5 are configured. In the case of the illustrated embodiment, two binding wires 6a and 6b are provided, and the end portions 7 of the respective wires 6a and 6b are connected so as to be freely wound in the circumferential direction of the rotor 5, and between the wires 6a and 6b. The folded portions 8 and 8 are connected by being slidably inserted into the facing portion of the connecting means 9.

Therefore, as shown in FIG. 2, for example, when the rotor 5 is rotated forward R1 in a state where the binding wires 6a and 6b are wound around the outer periphery of the product M1 having a substantially rectangular parallelepiped shape, the binding wires 6a and 6b are It is wound around the rotor 5 and fastened to the surface of the product M1. In the case of the illustrated embodiment, the connecting means 9 formed in a disk shape is disposed at the substantially center of the bottom surface of the product M1, and the casing 3 is disposed at the substantially center of the top surface of the product M1, and from this state, the binding wires 6a and 6b are arranged. By winding with the rotor 5, the binding wires 6a and 6b are tightened in a cross-shaped manner on each side of the product M1. Thereby, the tightened binding wires 6a and 6b cannot be removed from the product M1.

As will be described later, the ratchet mechanism can be selectively set between an operating state and a released state by a slider provided with a locking means. Accordingly, the reverse rotation R2 of the rotor 5 can be performed by releasing the ratchet mechanism. In this case, the binding wires 6a and 6b can be unwound from the rotor 5 so that the binding wires 6a and 6b can be removed from the product M1.

The casing 3 forms a drive chamber 4 having an upper opening by standing a cylindrical wall 11 from a substantially rectangular support plate 10, and a support shaft 12 is erected from the bottom wall of the drive chamber 4. The rotor 5 is rotatably supported on the support shaft 12.

The rotor 5 is provided with a lower ring 14 at the lower end of the cylindrical drive shaft 13 and an upper ring 15 at the upper end, and is provided with connecting pieces 16 at equal intervals in the circumferential direction of the drive shaft 13. The drive shaft 13 is rotatably inserted on the support shaft 12 to be accommodated in the drive chamber 4, and the upper ring 15 is configured to close the upper opening of the drive chamber 4. In the case of the illustrated example, the ring member 17 is fitted to the upper opening edge of the cylindrical wall 11 so as to cover the upper peripheral edge of the upper ring 15.

The bundling wires 6 a and 6 b are guided to the drive chamber 4 through the insertion holes 18 formed in the circumferential direction of the cylindrical wall 11 at intervals, and the ends are connected to the rotor 5. While being inserted into the hole of the connecting piece 16, and the stopper 19 is caulked and fixed to the insertion end, it is connected and fixed in a retaining shape.

The upper ring 15 of the rotor 5 constitutes operating means 21 that allows the rotor 5 to be rotated from the outside of the casing 3 by providing a knob 20 extending in the radial direction on the upper surface. Therefore, the user winds the binding wires 6a and 6b around the drive shaft 13 by locking the fingertip to the picking piece 20 and causing the rotor 5 to rotate forward R1. As a result, as shown in FIG. 6a and 6b can be fastened to the outer periphery of the product M1. In this regard, in the case of the illustrated embodiment, the blade piece is lifted from the surface of the product M1 along the both side edges of the support plate 10 of the casing 3 (in other words, deviated above the bottom surface of the support plate 10). 22 is formed, a guide hole 23 penetrating in the vertical direction of the blade piece 22 is provided, and the binding wires 6a and 6b are inserted into the guide hole 23 between the insertion hole 18 and the edge of the product M1. As a result, the binding wires 6a and 6b can be tightened in the state as close as possible to the upper surface of the product M1.

As shown in FIG. 4, the casing 3 stores a security tag 24 on the bottom surface. In the case of the illustrated embodiment, a dish-like storage portion 25 is formed on the back surface of the support plate 10, and a plate-like lid 26 that closes the storage portion 25 so as to be freely opened and closed is integrated with the support plate 10 via a thin hinge 27. Is formed. The lid 26 is rotatable as indicated by an arrow in the figure by a thin hinge 27. When the lid 26 is closed in a state where the security tag 24 is accommodated in the accommodating portion 25, a fitting piece 28 provided at the free end of the lid 26 is provided. The casing 3 is detachably fitted to the fitted portion 29 on the bottom surface.

In the state where the bottom surface of the casing 3 is opened, the lid 26 can be opened by detaching the fitting piece 28 from the fitting portion 29 with a fingertip, but the antitheft device 1 of the present invention is as described above. Since the bottom surface of the casing 3 is attached to the surface of the product M1, and the bottom surfaces of the casing 3 are pressed against the product M1 by tightening the binding wires 6a and 6b in this state, the antitheft device 1 is attached to the product M1. In the state, an unauthorized person cannot take out the security tag 24.

The lower wheel 14 of the rotor 5 constitutes a ratchet wheel 30 and is arranged in the state of being close to the bottom wall of the drive chamber 4. The ratchet wheel 30 may be configured separately from the lower wheel 14 of the rotor 5, but by using the lower wheel 14 in this manner, a wide winding space is formed between the lower wheel 14 and the upper wheel 15. be able to.

In order to constitute the ratchet mechanism, as shown in FIGS. 5 and 7, the casing 3 is provided with a cylinder 32 that forms a guide path 31 that communicates with the drive chamber 4, and operates close to the ratchet wheel 30. A slider 33 that can move forward and backward between the position P1 and the idle position P2 that is spaced apart is provided in the guide path 31.

The slider 33 includes a ratchet claw 36 that meshes with the ratchet teeth 35 of the ratchet wheel 30 that faces the communication portion 34 of the drive chamber 4 and the guide path 31 while being held at the operating position P1. The ratchet pawl 36 is provided on a flexible arm 37 extending substantially L-shaped from the tip of the slider 33. The ratchet pawl 36 advances and retracts with respect to the ratchet teeth 35 due to the bending elasticity of the flexible hinge 38 of the arm 37. It is configured freely. Accordingly, as indicated by a chain line in FIG. 6B, the forward rotation R1 of the ratchet wheel 30 is enabled while the ratchet pawl 36 is preferably retracted, while the forward rotation R1 of the ratchet wheel 30 is possible. Makes the reverse rotation R2 impossible by engaging the ratchet pawl 36 with the ratchet teeth 35.

Thus, with the slider 33 held at the operating position P1, the ratchet pawl 36 meshes with the ratchet teeth 35 so as to freely advance and retreat, and the ratchet wheel 30 as a one-way mechanism that allows forward rotation R1 but does not allow reverse rotation R2. The mechanism is configured.

Therefore, by rotating the rotor 5 in the forward direction R1 while the slider 33 is held at the operating position P1, the winding wire 6a, 6b can be tightly wound around the outer periphery of the product M1 and the tightened state can be maintained. . Then, when the slider 33 is moved to the idle position P2, the ratchet mechanism is released, and the rotor 5 freely rotates and allows reverse rotation R2. Therefore, the binding wires 6a and 6b wound around the rotor 5 are You can pay out. For example, when loosening and removing the binding wires 6a and 6b that tighten the product M1, the slider 33 is moved from the operating position P1 to the idle position P2, and the casing 3 is simply lifted above the product M1 to bind the binding wire 6 from the rotor 5. The wires 6a and 6b are drawn out and the tightening state can be released.

As described above, since the ratchet wheel 30 also serves as the lower wheel 14 of the rotor 5, when winding the binding wires 6 a and 6 b around the drive shaft 13, the wire is bitten by the ratchet teeth 31 of the ratchet wheel 30. As shown in FIGS. 5 and 7, it is located on the circumference of the drive chamber 4 excluding the communication portion 34, and is close to the circumference of the ratchet wheel 30 and on the circumference of the circumference as shown in FIGS. A protective wall 39 extending along the surface is formed. In the case of the illustrated example, an annular rib 40 that is concentric with the support shaft 12 protrudes from the bottom wall of the drive chamber 4, thereby reducing the frictional resistance of the ratchet wheel 30. The protective wall 39 is provided by forming the inside of the cylindrical wall 11 thickly so as to draw a concentric circle with the support shaft 12 along the periphery. Therefore, there is almost no gap between the tip of the ratchet teeth 35 and the inner surface of the protective wall 39, and the binding wires 6a and 6b are not bitten. In the upper region of the protective wall 39, a winding chamber having a diameter larger than that of the protective wall 39 is formed by reducing the thickness of the cylindrical wall 11, and the winding capacity of the binding wires 6a and 6b is increased. It is configured to be as large as possible.

The protective wall 39 is divided at a portion facing the communication portion 34. For this reason, the arm 37 of the slider 33 is provided with a hook-shaped protection plate 41 extending from the upper part of the ratchet pawl 36 toward the distal end. When the ratchet mechanism is brought into an operating state by holding the slider 33 at the operating position P1, the protection plate 41 covers the ratchet teeth 35 and the ratchet pawl 36 facing the communication portion 34, and the binding wire 6a, 6b is prevented from biting.

Locking means 42 is provided between the cylinder 32 and the slider 33. The locking means 42 locks the slider 33 so that it cannot move backward while the slider 33 is advanced to the operating position P1, and unlocks the slider 33. When the unlocking key 2 is inserted into the path 43, the slider 33 is unlocked so as to be retractable to the idle position P2.

The locking means 42 includes a locking claw 44 fixed to the cylinder 32 and a locking arm 45 provided on the slider 33 and swingable in a locking direction F and an unlocking direction B. The locking arm 45 is provided with a locking hole 46 that is locked to the locking claw 44, is elastically biased in the locking direction F, and is a magnetic piece made of an iron plate or the like that can be magnetized in the unlocking direction B. 47 is provided. On the other hand, the locking claw 44 has a guide surface 48 that pushes the distal end of the locking arm 45 in the unlocking direction B when the slider 33 is advanced from the idle position P2 toward the operating position P1; A claw portion 49 that engages with the engagement hole 46 when the distal end of the locking arm 45 gets over the guide surface 48 and a latching portion 50 that projects from the claw portion 49 in the forward direction of the slider 33 are formed.

As shown in FIGS. 5 and 7, a long hole 51 and a protrusion 52 are provided on the side wall 32 a of the cylinder 32 and the side wall 33 a of the slider 33 so as to restrict the forward / backward movement range of the slider 33. The slider 33 can move back and forth between the operating position P1 advanced from the retracted idle position P2 and the unlocked position P3 advanced from the operating position P1 corresponding to the protruding amount of the latching portion 50. Is done.

As described above, the crime prevention tag 24 is stored on the bottom surface of the casing 3, the binding wires 6 a and 6 b are connected to the rotor 5 housed in the casing 3 so as to be freely wound, and the slider 33 is inserted into the cylinder 32, and theft A prevention device 1 is provided. On the other hand, as shown in FIG. 8, the unlocking key 2 is provided with a rod portion 54 having a permanent magnet protruding from a holder 53, and the rod portion 54 is a key hole portion of the slider 33. 55 to be inserted into the unlocking path 43. At this time, the cross-sectional shape of the rod portion 54 of the unlocking key 2 and the shape of the key hole portion 55 are preferably not a simple circle or rectangle, but are preferably irregular. In the example shown in the figure, a triangle is shown. However, it can be a complex shape such as a pentagon or a star. As will be described later, a receiving portion 56 that abuts the tip of the rod portion 54 when the rod portion 54 is inserted into the unlocking passage 43 is provided at the back end of the unlocking passage 43 of the slider 33.

When the antitheft device 1 storing the security tag 24 is attached to the product M1, the binding wire 6a is set by rotating the rotor 5 in the reverse direction R2 with the slider 33 placed in the idle position P2 and the ratchet mechanism released. , 6b is extended and extended, and then the slider 33 is advanced to the operating position P1, thereby locking the locking means 42 and setting the ratchet mechanism in the operating state. From this state, the bottom surface of the casing 3 is attached to the upper surface of the product M1 as described above, and the binding wires 6a and 6a are wound around the outer periphery of the product M1, and the rotor 5 is rotated forward via the operation means 21. The wire may be wound by R1 and tightened to the outer periphery of the product M1.

On the contrary, when the antitheft device 1 is removed from the product M1, the locking means 42 is inserted as described later by inserting the rod portion 54 of the unlocking key 2 into the unlocking path 43 from the keyhole portion 55 of the slider 33. And the slider 33 magnetically attached to the unlock key 2 is moved to the idle position P2. As a result, the ratchet mechanism is released and the rotor 5 freely reverses R2. Therefore, when the casing 3 is pulled up as described above, the binding wires 6a and 6b are fed out and can be detached from the product M1.

(Slider locking method)
As described above, the anti-theft device 1 of the present invention is configured so that an unauthorized person cannot loosen the binding wires 6a and 6b by operating the ratchet mechanism. Therefore, with respect to the action of the slider 33 for operating the ratchet mechanism, the action until the slider 33 is advanced from the idle position P2 and held at the operating position P1 will be described with reference to FIG.

FIG. 9A shows a state in which the slider 33 is stopped at the idle position P2. The protrusion 52 abuts on the rear end of the long hole 51 and holds the slider 33 in a state where it cannot be pulled out from the cylinder 32. . The ratchet pawl 36 of the slider 33 is moved away from the ratchet teeth 35 of the ratchet wheel 30, and thus the ratchet mechanism is released.

As shown in FIG. 9 (B), when the tail end of the slider 33 is pushed with a fingertip or the like to advance from the idle position P2, the tip of the locking arm 45 slides along the guide surface 48 of the locking claw 44. The slider 33 is advanced until the tip of the locking arm 45 gets over the locking claw 44.

The slider 33 meshes the ratchet pawl 36 with the ratchet teeth 35 of the ratchet wheel 30 when the slider 33 reaches the operating position P1 by advancing, but the unlocking position P3 further exceeds the operating position P1 by bending the flexible hinge 38. To be advanced. When the slider 33 moves forward to the unlock position P3, the protrusion 52 is brought into contact with the front end of the long hole 51 to prevent the forward movement. At this time, the tip of the locking arm 45 gets over the latching portion 50 and the entire locking claw 44 including the latching portion 50 faces the locking hole 46, so that the resilient locking arm 45 is in the above-described locking direction. It swings toward F and the locking claw 44 is inserted into the locking hole 46.

Therefore, when the slider 33 is released from the fingertip, the slider 33 moves backward from the unlock position P3 to the operating position P1, as shown in FIG. 9C, due to the restoring force of the flexible hinge 38 that has been bent and deformed. By locking the front edge of the locking hole 46 to the locking claw 44, the locked state is retained. In this state, since the tip of the locking arm 45 is locked to the latching portion 50, the locking arm 45 swings in the unlocking direction B even if an unauthorized person inserts a permanent magnet into the unlocking path 43. There is nothing. Similarly, even if the locking arm 45 is swung by inserting a wire or the like into the unlocking path 43, the locking arm 45 does not swing in the unlocking direction B.

(How to unlock the slider)
The anti-theft device 1 of the present invention, when a legitimate customer who purchased a product pays at a cash register counter, the store clerk uses the unlock key 2 to release the ratchet mechanism, thereby feeding the binding wires 6a and 6b, It is configured to be removable from the product. Therefore, with respect to the action of the slider 33 for releasing the ratchet mechanism, the action until the slider 33 is moved from the operating position P1 to the idle position P2 will be described with reference to FIG.

FIG. 10A shows a state in which the slider 33 is held at the operating position P <b> 1, and the ratchet pawl 36 of the slider 33 meshes with the ratchet teeth 35 of the ratchet wheel 30.

From this state, as shown in FIG. 10B, when the rod part 54 of the unlocking key 2 is inserted into the unlocking path 43 and the tip of the rod part 54 comes into contact with the receiving part 56, the rod part 54 The permanent magnet magnetically attaches the magnetic piece 47 of the locking arm 45, so that the locking arm 45 tends to swing in the unlocking direction B. However, in this state, the locking arm 44 prevents the locking arm 44 from swinging. Therefore, as shown in FIG. 10B, when the slider 33 is advanced to the unlock position P3 through the bending of the flexible hinge 38 by strongly pushing the rod portion 54, the latching portion 50 is locked. Is unlocked, the locking arm 45 swings in the unlocking direction B, unlocking the locking means 42 and allowing the slider 33 to move backward.

Therefore, when the unlocking key 2 is moved in the backward direction, the magnetic piece 47 is magnetically attached to the permanent magnet of the rod portion 54, so that the slider 33 moves following the rod portion 54, and FIG. ), The slider 33 is moved to the idle position P2. In this state, the projection 52 contacts the rear end of the long hole 51 and functions as a stopper that prevents the slider 33 from moving backward, so that the rod portion 54 can be pulled out from the unlocking path 43. Thus, even after the unlocking key 2 is pulled out, the slider 33 remains in the guide path 31 of the cylinder 32 and is not separated from the cylinder 32. Therefore, when the ratchet mechanism is put into an operating state in order to attach the antitheft device 1 to another product for use again, it is sufficient to push the slider 33 into the cylinder 32 as shown in FIG.

(Another embodiment)
FIG. 11 shows another embodiment relating to a method for bundling products using the bundling wires 6a and 6b. The two binding wires 6a and 6b are not connected by the connecting means 9 as in the above-described embodiment, and a pair of locking tools 57 are provided on the respective binding wires 6a and 6b. The locking member 57 has a bracket 59 with a hole fixed to a flat cylindrical body 58, and the binding wires 6a and 6b are slidably inserted into the holes of the bracket 59.

For example, the product M2 is obtained by integrating the product package 61 on one side of a substrate 60 such as a mount as known in a blister pack.

Therefore, according to this embodiment, the bottom surface of the anti-theft device 1 is attached to the substrate 60, and the cylindrical body 58 of the locking tool 57 is disposed at each corner portion of the substrate 60. When the binding wires 6a and 6b are wound and tightened in the state of being inserted into the cylindrical body 58, it can be attached to the product M2 such as a blister pack.

DESCRIPTION OF SYMBOLS 1 Anti-theft device 2 Unlocking key 3 Casing 4 Drive room 5 Rotor 6a, 6b Bundling wire 9 Connection means 10 Support plate 11 Tube wall 12 Support shaft 13 Drive shaft 16 Connection piece 18 Insertion hole 19 Detaching tool 20 Means 22 Wing piece 23 Guide hole 24 Security tag 25 Storage part 26 Cover 30 Ratchet wheel 31 Guide path 32 Cylinder 33 Slider 34 Communication part 35 Ratchet tooth 36 Ratchet claw 37 Arm 38 Flexible hinge 39 Protective wall 40 Annular rib 41 Protective plate 42 Locking means 43 Unlocking path 44 Locking claw 45 Locking arm 46 Locking hole 47 Magnetic piece 48 Guide surface 49 Claw part 50 Latching part 51 Long hole 52 Projection 53 Holder 54 Rod part 55 Key hole part 56 Receiving part

Claims (7)

A casing (3) having a security tag (24), a rotatable rotor (5) provided in a drive chamber (4) of the casing, a ratchet wheel (30) that rotates together with the rotor in the drive chamber, The operation means (21) that allows the rotor to rotate from the outside of the casing, and at least one binding wire (6) that is inserted into the inside from the outside of the casing and connected to the rotor, In the configuration in which the rotor is normally rotated in a state where the binding wire is wound around the outer periphery of the product, and the binding wire is wound and tightened by the rotor,
A cylinder (32) forming a guide path (31) communicating with the drive chamber (4) is connected to the casing (3) and is separated from an operating position (P1) close to the ratchet wheel (30). A slider (33) that can move forward and backward between the idle position (P2) is installed in the guide path (31),
The slider (33) meshes with the ratchet teeth (35) of the ratchet wheel in a state of being held in the operating position (P1) so as to freely advance and retreat, and the ratchet claw that allows forward rotation of the ratchet wheel but does not allow reverse rotation ( 36)
A locking means (42) is provided between the cylinder (32) and the slider (33), and the locking means (42) cannot retract the slider in a state where the slider (33) is advanced to the operating position (P1). And when the unlocking key (2) is inserted into the unlocking path (43) of the slider (33), the slider is unlocked so as to be retractable to the idle position (P2). An anti-theft device for products. The slider (33) is integrally formed of plastic, and has a ratchet pawl (36) extending through a flexible hinge (38) at the tip, holding the slider (33) in the operating position (P1). When the ratchet wheel (30) is rotated forward in the state, the ratchet pawl (36) is configured to be movable back and forth with respect to the ratchet teeth (35) by the flexural elasticity of the flexible hinge (38). The antitheft device for merchandise according to claim 1. The locking means (42) is provided on a locking claw (44) fixed to the cylinder (32) and a slider (33), and is swingable in a locking direction (F) and an unlocking direction (B). The locking arm (45)
The locking arm (45) is provided with a locking hole (46) that is locked to the locking claw (44), and is elastically biased in the locking direction (F) and from the unlocking direction (B). Provide a magnetic piece (47) that can be magnetized,
The locking claw (44) pushes the tip of the locking arm (45) in the unlocking direction (B) when the slider (33) is advanced from the idle position (P2) toward the operating position (P1). A guide surface (48) to be engaged, and a claw portion (49) to be engaged with the engagement hole (46) when the tip of the locking arm (45) gets over the guide surface (48),
The unlocking key (2) swings the locking arm (45) in the unlocking direction (B) by magnetically attaching the magnetic piece (47) when inserted into the unlocking path (43) of the slider (33). The product antitheft device according to claim 1 or 2, further comprising a permanent magnet (54) to be moved. The claw portion (49) of the locking claw (44) forms a latching portion (50) that protrudes in the forward direction of the slider (33), and the slider (33) faces the operating position (P1). In the state, the locking portion (50) is locked to the locking arm (45) so that the locking arm (45) cannot swing in the unlocking direction (B),
When the slider (33) is moved from the operating position (P1) to the unlocked position (P3) further advanced by the unlocking key (2), the locking arm (45) is released from the latching portion (50). The product antitheft device according to claim 3, wherein the device is configured as follows. The casing (3) forms a storage portion (25) for the security tag (24) on the bottom surface attached to the surface of the product, and has a lid (26) for opening and closing the storage portion, and the outer periphery of the product The lid (26) is configured so as to be sandwiched between the casing (3) and the product in a state of being bound by a binding wire (6). 4. The antitheft device for merchandise according to 4. The ratchet wheel (30) is integrally formed at the lower end of the cylindrical drive shaft (13) of the rotor (5), and the support shaft is erected from the bottom wall of the drive chamber (4) of the casing (3). In the configuration in which the drive shaft (13) is rotatably extrapolated to (12),
The drive chamber (4) is a protective wall (39) that is close to the circumferential surface of the ratchet wheel (30) and extends along the circumference of the circumferential surface, except for the communication portion (34) of the guide path (31). And a winding chamber having a diameter larger than that of the protective wall is formed in an upper region of the protective wall. Anti-theft device. The slider (33), while being held in the operating position (P1), covers the ratchet (41) covering the ratchet teeth (35) of the ratchet wheel (30) facing the communication portion (34) from above. The anti-theft device for merchandise according to claim 6, wherein the anti-theft device is extended to an upper part of the claw (36).

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