JP2018145587A - Bar lock device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bar lock device capable of suppressing deterioration of anti-theft property while suppressing an increase in weight.SOLUTION: A bar lock device 1 comprises opposing plate portions 16a and 17a for restraining a locking object by a closed loop of a chain-like constraint body formed at attachment of both end portions to a lock device main body, which configures both end portions of the chain-like constraint body formed by rotatably connecting a plurality of rods so as be removable with respect to a lock device body, the plurality of rods enclosing metallic core members 16, 17, the core members 16, 17 being deflected against the clamping force accompanying the rotation by two cutting members extending around the same fulcrum, and increasing, in a deflected state with respect to a state before deflection, force separating the core members 16, 17 from the fulcrum by using the clamping force.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a bar lock device.

  Conventionally, a wire lock device having a wire rope, a lock device main body provided at one end of the wire rope, and a detachable hook provided at the other end of the wire rope and attachable to and detachable from the lock device main body has been proposed. (See Patent Document 1). In this wire lock device, the lock target can be constrained by attaching a detachable scissor to the lock device body to form a closed loop.

  A bar lock device in which the wire rope of the wire lock device is replaced with a plurality of rods has also been proposed. In this device, a plurality of rods are connected to each other in a rotatable manner to form a chain-like restraining body, and a closed loop is formed by the chain-like restraining body so as to restrain a lock target (Patent Document 2,). 3).

JP 2000-104432 A JP 2007-51493 A Utility Model Registration No. 3142497

  As an attack method for the bar lock device described in Patent Documents 2 and 3, for example, cutting with a cutting tool such as a bolt clipper can be cited. In the bar lock device, a metal core material is included in a plurality of rods, and the cross-sectional area of the core material is increased to withstand the above-described attack.

  However, when the cross-sectional area of the core material is increased, the bar lock device becomes heavy. As a result, there is a problem that the bar lock device is not easily carried and the frequency of use is lowered without being carried to a destination. On the other hand, if the cross-sectional area of the core material is reduced with respect to such a problem, the anti-theft property is lowered.

  The present invention has been made to solve such a conventional problem, and an object of the present invention is to provide a bar lock device capable of suppressing a reduction in theft prevention while suppressing an increase in weight. There is to do.

  In order to achieve the above object, a bar lock device according to the present invention restrains an object to be locked by a closed loop of a chain-like restraint formed by rotatably connecting a plurality of rods. The plurality of rods have a metal core, and the core has a bending portion that bends with respect to a clamping force accompanied by rotation by two cutting members extending around the same fulcrum. A bending part increases the force which a core material leaves | separates from a fulcrum using the force of clamping rather than before bending in the bent state.

  In order to achieve the above object, in another bar lock device according to the present invention, the plurality of rods have a metal core material, a flexure piece, and a resin material, and the flexure pieces have the same fulcrum. The bending force with the rotation by the two cutting members extending in the center is deflected, and the force for separating the core from the fulcrum is increased by using the clamping force as compared with before the bending in the bent state.

  ADVANTAGE OF THE INVENTION According to this invention, the bar lock apparatus which can suppress the fall of anti-theft property, suppressing the increase in weight can be provided.

It is a whole lineblock diagram showing details of a bar lock device concerning this embodiment. It is a top view of the chain-like restraint shown in FIG. It is sectional drawing of the chain-like restraint body shown in FIG. 1, (a) shows the 3A-3A sectional view taken on the line in FIG. 2, (b) shows the enlarged view of the 3B part of (a). Yes. It is a side view which shows the internal state of the locking device main body shown in FIG. It is a perspective view which shows the core material in the rod which concerns on this embodiment, (a) shows the core material of an intermediate | middle rod, (b) has shown the core material of the lock | rock connection rod. It is the schematic which shows the effect | action of the bar lock apparatus which concerns on this embodiment, (a) shows the mode before an attack, (b) shows the 1st mode in the case of an attack, (c) is in the case of an attack The 2nd mode of is shown. It is the schematic which shows the effect | action of the bar lock apparatus which concerns on 2nd Embodiment, (a) shows the mode before an attack, (b) has shown the mode in the case of an attack. It is the schematic which shows the effect | action of the bar-lock apparatus which concerns on 3rd Embodiment, (a) shows the mode before an attack, (b) has shown the mode in the case of an attack. It is the schematic which shows the effect | action of the bar-lock apparatus which concerns on 4th Embodiment, (a) shows the mode before an attack, (b) has shown the mode in the case of an attack. It is the schematic which shows the effect | action of the bar-lock apparatus which concerns on 5th Embodiment, (a) shows the mode before an attack, (b) has shown the mode in the case of an attack.

  Hereinafter, the present invention will be described according to preferred embodiments. Note that the present invention is not limited to the embodiments described below, and can be appropriately changed without departing from the spirit of the present invention. Further, in the embodiment shown below, there are places where illustration and description of a part of the configuration are omitted, but the details of the omitted technology are within the scope that does not conflict with the contents described below. It goes without saying that known or well-known techniques are applied as appropriate.

  FIG. 1 is an overall configuration diagram showing details of the bar lock device according to the present embodiment. As shown in FIG. 1, the bar lock device 1 according to this embodiment includes a chain-like restraining body 10 and a lock device main body 20. The bar lock device 1 is configured so that both ends of the chain-like restraining body 10 can be attached to and detached from the lock device main body 20, and the chain-like restraining body 10 is closed when the both ends are attached to the lock device main body 20. Locking object A is restrained. The bar lock device 1 may be configured such that one end portion of the chain-like restraining body 10 is detachably attached to the lock device main body 20 and the other end portion is fixed (non-detachably fixed) to the lock device main body 20. In the following embodiment, the bar lock device 1 in which both ends of the chain-like restraint body 10 are detachable from the lock device body 20 will be described as an example.

  FIG. 2 is a top view of the chain-like restraining body 10 shown in FIG. 3 is a cross-sectional view of the chain-like restraint body 10 shown in FIG. 1, wherein (a) shows a cross-sectional view taken along line 3A-3A shown in FIG. 2, and (b) shows a 3B portion of (a). An enlarged view is shown.

  As shown in FIGS. 1 and 2, the chain-like restraining body 10 is formed by connecting a plurality of rods 11 in a freely rotatable manner. In the present embodiment, the chain-like restraining body 10 is configured by connecting, for example, ten rods 11. The plurality of rods 11 include a lock connecting rod 12 and an intermediate rod 13. The lock connecting rod 12 and the intermediate rod 13 are each formed in a linear shape, and the lock connecting rod 12 is formed to be shorter than the intermediate rod 13.

  As shown in FIG. 2 and FIG. 3A, the lock connecting rod 12 is provided at both ends of the chain-like restraining body 10, and includes attachment / detachment rods 12 a that are attached to and detached from the lock device body 20. The detachable rod 12a has a locking portion 12b on the distal end side and a base portion 12c on the root side. The locking portion 12b is a concave portion having a diameter smaller than that of the base portion 12c. The concave portion is engaged with a lock piece (see reference numeral 23 in FIG. 4 described later) of the lock device main body 20 to be in a mounted state.

  As shown in FIG. 3A, a connecting opening 14 for connecting to the intermediate rod 13 is formed at the end of the lock connecting rod 12 opposite to the side where the attaching / detaching rod 12 a is provided. The intermediate rod 13 has connection openings 14 at both ends for connection to the lock connection rod 12 or other intermediate rods 13.

  The lock connecting rod 12 and the intermediate rod 13 are arranged so that the connecting opening 14 communicates with the connecting opening 14 of the lock connecting rod 12 or the intermediate rod 13 to be connected. In this communication state, the connecting pin 15 is connected to the connecting opening 14. By being inserted, it is connected to the rod 11 to be connected. In such a connected state, each rod 11 is rotatable about the connecting pin 15 as a rotation axis. The rotation angle here may be 360 ° or less. Further, as shown in FIG. 2, each of the plurality of rods 11 has a semicircular R portion on the end side with respect to the connection opening 14 in a top view, and prevents the corner portion from protruding. Yes.

  2 and 3A, each of the plurality of rods 11 includes a metal core material 16 and 17 and a resin material 18 containing the metal core materials 16 and 17, respectively. ing. In the present embodiment, the plurality of rods 11 have the core materials 16 and 17 encapsulated in the resin material 18 by insert molding. However, the present invention is not limited to this, and the resin material 18 is configured by a resin tube. The structure in which the core materials 16 and 17 are enclosed in the tube may be sufficient.

  Here, as shown in FIGS. 3A and 3B, the connecting pin 15 connects the plurality of rods 11 from one side (the upper surface side shown in FIGS. 1 and 2) of the chain-like restraining body 10. It is inserted into the opening 14. The plurality of rods 11 are alternately stacked with the other rods 11. Of the rods 11 that are alternately stacked, the rod 11 positioned on one side has a connection opening 14 formed as a through hole 14 a, The rod 11 located on the other side is formed as a bottomed hole 14b in which the connection opening 14 is threaded by a female screw.

  On the other hand, the connecting pin 15 is a stepped pin having a male screw portion 15a on the tip side. Further, the connecting pin 15 has a break guide 15b formed on the rear end side (one side). The fracture guide 15b is a guide portion for cutting off the threaded portion 15c after the connecting pin 15 is inserted and attached.

  When connecting the plurality of rods 11, first, the connection openings 14 of the plurality of rods 11 are brought into a communication state. Next, the connecting pin 15 is rotationally inserted from the through hole 14a side with the threaded portion 15c as an operation portion, and the male screw portion 15a at the tip is inserted into the bottomed hole 14b. After the insertion, when the rotation operation is further performed using the threaded portion 15c of the connecting pin 15 as an operation portion, the threaded portion 15c is broken from the breaking guide 15b. Thereby, the rotation operation for removing the connecting pin 15 becomes impossible. In order to prevent the break guide 15b from being exposed, the cap 19 is attached so as to cover the break guide 15b.

  FIG. 4 is a side view showing an internal state of the lock device main body 20 shown in FIG. As shown in FIG. 4, the lock device main body 20 includes a casing 21 having a sufficient breaking strength and housing each component, a cylinder lock 22 provided inside the casing 21, a lock piece 23, and the like.

  The casing 21 has two insertion holes 21a into which the detachable rod 12a is inserted. Lock pieces 23 are provided in the two insertion holes 21a so as to be able to advance and retract. The lock piece 23 is a column having a semicircular cross section that can rotate around the rotation shaft 23a. As for this lock piece 23, the site | part used as the corner | angular part of a semicircle functions as the locking piece 23b.

  The lock piece 23 is provided with a torsion spring 24 that urges the locking piece 23b to enter the locked state. When the attachment / detachment rod 12a is inserted into the insertion hole 21a, the tip of the attachment / detachment rod 12a first contacts the locking piece 23b of the lock piece 23. When the attaching / detaching rod 12a is further inserted in this contact state, the attaching / detaching rod 12a retracts the locking piece 23b from the insertion hole 21a against the urging force of the torsion spring 24. When the insertion of the attaching / detaching rod 12a is completed, the locking piece 23b is returned to the entering state by the urging force of the torsion spring 24, and is fitted into the recess that becomes the locking portion 12b of the attaching / detaching rod 12a.

  The cylinder lock 22 includes a plug 22a that can be rotated when a proper mechanical key K is inserted. A stopper block 25 is connected to the end of the plug 22a. Further, the lock piece 23 has a stopper projection 23c at a portion that becomes the other corner of the semicircle. In the locked state of the locking device body 20, the stopper block 25 is in contact with the stopper projection 23c of the lock piece 23, and restricts the rotation of the lock piece 23 in the direction in which the detachable rod 12a is removed.

  On the other hand, when a regular mechanical key K is inserted into the cylinder lock 22 and rotated, the stopper block 25 allows the lock piece 23 to rotate in the direction in which the attaching / detaching rod 12a is removed. Become.

  FIG. 5 is a perspective view showing the core members 16 and 17 in the rod 11 according to the present embodiment, wherein (a) shows the core member 17 of the intermediate rod 13, and (b) is the core member of the lock connecting rod 12. 16 is shown.

  As shown in FIG. 5 (a), the core member 17 of the intermediate rod 13 includes two opposing plate portions (flexure portions) 17a that are arranged to face each other and a connecting plate portion that connects the two opposing plate portions 17a. (Base) 17b. The two opposing plate portions 17 a are arranged so as to be substantially parallel in a cross section orthogonal to the longitudinal direction of the core member 17. Further, the connecting plate portion 17b connects the intermediate portions of the two opposing plate portions 17a, and the core member 17 has an H-shaped cross section. The intermediate rod 13 encloses such a core material 17 with a resin material 18, and the resin material 18 is substantially parallel to the H-shaped stroke direction as shown in FIG. It is formed with a surface and has a substantially rectangular cross section.

  In the core member 17, the two opposing plate portions 17 a are designed to have a thickness that can be bent with respect to the clamping force (at least thinner than the connection plate portion 17 b). The pinching here is pinching by a cutting tool such as a bolt clipper and is a pinching force accompanied by rotation by two cutting members extending around the same fulcrum. Accordingly, when the core material 17 is to be cut by a cutting tool such as a bolt clipper, the two opposing plate portions 17a are bent.

  Here, connecting members (other members) C that have connection openings 14 at both ends of the core member 17 and are connected to the other rods 11 are formed. In the present embodiment, in the core member 17, only the connection plate portion 17 b is connected to the connection member C, and the two opposing plate portions 17 a are not connected to the connection member C, and they are separated from each other. Groove G to be formed is formed.

  Further, as shown in FIG. 5B, the same applies to the lock connecting rod 12, and the core member 16 has two opposing plate portions (flexible portions) 16a and connection plate portions (base portions) 16b. And it has a H-shaped cross section. Furthermore, the core member 16 is designed to have a thickness that allows the two opposing plate portions 16a to bend with respect to the clamping force.

  Moreover, the connection member C is formed in the one end part of the core material 16, and the attachment or detachment collar 12a (other member) is formed in the other end part. In the core member 16, only the connecting plate portion 16b is connected to the connecting member C and the attaching / detaching rod 12a, and the two opposing plate portions 16a are not connected to the connecting member C and the attaching / detaching rod 12a. Is formed with a groove G for separating them.

  As shown in FIGS. 5A and 5B, since the core members 16 and 17 have an H-shaped cross section in the present embodiment, a solid quadrangular prism core material ( As compared with a core material having a quadrangular cross section circumscribing H, the weight is suppressed.

  Here, the bar lock device 1 having the above-described configuration operates as shown below when an attack by, for example, a bolt clipper or the like is performed, and suppresses a decrease in the anti-theft property.

  Next, the operation of the bar lock device 1 according to this embodiment will be described. 6A and 6B are schematic diagrams illustrating the operation of the bar lock device 1 according to the present embodiment, where FIG. 6A illustrates a state before an attack, FIG. 6B illustrates a first state during an attack, and FIG. ) Shows a second state during the attack. First, as shown in FIG. 6A, the bolt clipper BC has a fulcrum F, and the cutting blade D serving as two cutting members extends from the fulcrum F. In the attack, the rod 11 is sandwiched between the cutting blades D.

  As shown in FIG. 6B, the bolt clipper BC is operated, and the cutting operation by the two cutting blades D is performed. In this cutting operation, a clamping force F <b> 1 accompanying rotation by the two cutting blades D acts on the rod 11. More specifically, the two cutting blades D reach the core members 16 and 17 while tearing the resin material 18, and apply a clamping force F <b> 1 to the core members 16 and 17. At this time, as shown in FIG. 6 (b), the opposing plate portions 16 a and 17 a are bent prior to being cut by the cutting blade D.

  And the opposing board parts 16a and 17a will increase force F2 which the core materials 16 and 17 leave | separate from the fulcrum F using the clamping force F1 rather than before bending in the bent state. That is, when the core members 16 and 17 are to be cut by the bolt clipper BC, the inclined surfaces such that the opposing plate portions 16a and 17a bend and follow the cutting blade D (more preferably, the inclined surface that makes line contact with the cutting blade D). Form. When this slope is formed, if a force F1 is applied to the slope, the force F2 away from the fulcrum F is increased as a component force. Thereby, the core materials 16 and 17 come away from the bolt clipper BC, and the core materials 16 and 17 are hardly cut.

  As shown in FIG. 6C, even when the attack is performed from a direction different by 90 °, the core materials 16 and 17 are supported at the fulcrum F as in the case described with reference to FIG. The force F2 that is separated from the power is increased as a component force. At this time, both of the two opposing plate portions 16a and 17a are bent to form a slope, and the force F2 away from the fulcrum F is increased.

  As shown in FIGS. 5A and 5B, the opposing plate portions 16a and 17a are not connected to the connecting member C and the detachable rod 12a, and are separated from each other through the groove portion G. It has become. For this reason, even if the clamping force F1 acts in the vicinity of the groove portion G of the counter plate portion 16a, the counter plate portion 16a is smoothly bent. That is, when there is no groove portion G and the opposing plate portion 16a is connected to the connecting member C and the attaching / detaching rod 12a, the clamping force F1 acts on the side of the opposing plate portion 16a close to the connecting member C and the attaching / detaching rod 12a. And the bending of the opposing board part 16a will be inhibited by the connection member C and the attachment / detachment rod 12a. As a result, the force F2 cannot be increased well, and the core materials 16 and 17 are easily cut. However, since the groove portion G is provided in the present embodiment, such a problem does not occur and the counter plate portion 16a is smoothly bent.

  In addition, about said core materials 16 and 17, for example, with respect to a solid quadrangular prism-shaped metal material, a recess continuously extending in the longitudinal direction is formed from one surface side by cutting or the like, and is opposed to the one surface. It is manufactured by forming a recess by cutting or the like in the same manner from the other side. Further, the core members 16 and 17 can be structured so as to be smoothly bent and not easily broken by adjusting the baking temperature and time so that only the surface layer is quenched.

  Thus, according to the bar lock device 1 according to the present embodiment, the bending force F1 is bent with respect to the rotation, and the clamping force F1 is used more than before the bending in the bent state. Since it has the two opposing plate parts 16a and 17a which increase the force which the core materials 16 and 17 leave | separate from the fulcrum F, the rod 11 leaves | separates from the fulcrum F of a cutting tool with respect to cutting operation by cutting tools, such as bolt clipper BC. Thus, the core members 16 and 17 can be made difficult to cut. Thereby, it is not necessary to enlarge the cross-sectional area of the core materials 16 and 17, and the fall of anti-theft property can be suppressed, suppressing weight.

  In particular, since the core materials 16 and 17 are included, the shape of the core materials 16 and 17 is unknown from the outside, and the counter plate portions 16a and 17a are first cut and then the remaining portion is cut with a cutting tool. This can reduce the possibility of being taken.

  Moreover, since the groove part G is formed between the opposing plate parts 16a and 17a and the connection member C or the attaching / detaching rod 12a and both are separated, the opposing plate parts 16a and 17a are connected to the connecting member C and the attaching / detaching rod 12a. Compared to the case of being connected, it is possible to prevent the bending in the vicinity of the connected portion from being hindered by the clamping force F1. Therefore, it is possible to further suppress the reduction in the anti-theft property.

  Moreover, since the core materials 16 and 17 are H-shaped cross sections provided with the two opposing board parts 16a and 17a and the connection board parts 16b and 17b, it opposes appropriately with respect to a cutting | disconnection from 4 directions with respect to H shape. The bar lock device 1 having the core members 16 and 17 having excellent workability can be provided while the plate portions 16a and 17a can be bent.

  In particular, in the present embodiment, the core members 16 and 17 are formed so that the connecting plate portions 16b and 17b are thicker than the opposing plate portions 16a and 17a. The possibility that the connecting plate portions 16b and 17b are detached from the connecting member C and the attaching / detaching rod 12a can be reduced.

  Next, a second embodiment of the present invention will be described. The bar lock device 1 according to the second embodiment is the same as that of the first embodiment, but a part of the configuration and operation is different from that of the first embodiment. Hereinafter, differences from the first embodiment will be described.

  FIG. 7 is a schematic diagram illustrating the operation of the bar lock device 1 according to the second embodiment, where (a) illustrates a state before an attack and (b) illustrates a state at the time of an attack. First, as shown in FIG. 7 (a), in the second embodiment, the core members 16 and 17 are formed by extending the rectangular columnar portions 16c and 17c and the rectangular column portions 16c and 17c, respectively, extending in the longitudinal direction. It consists of four radiation plate portions 16d and 17d extending radially from the surface, and the cross section is X-shaped.

  As shown in FIG. 7B, when the bolt clipper BC is operated and the cutting operation by the two cutting blades D is performed, the clamping force F1 acts on two of the four radiation plate portions 16d and 17d. Thus, the two radiation plate portions 16d and 17d are bent. These radiating plate portions 16d and 17d form an inclined surface along the cutting blade D in a bent state, and the core materials 16 and 17 are separated from the fulcrum F by the clamping force F1 acting on the inclined surface. The force F2 will be increased. Thereby, the core materials 16 and 17 come away from the bolt clipper BC, and the core materials 16 and 17 are hardly cut.

  In this manner, according to the bar lock device 1 according to the second embodiment, it is not necessary to increase the cross-sectional area of the core members 16 and 17, and it is possible to suppress a decrease in the anti-theft property while suppressing the weight. In addition, since the groove portion G is provided, it is possible to further suppress the prevention of theft prevention.

  Further, according to the second embodiment, since the core members 16 and 17 have an X-shaped cross section, similarly to the cross-sectional H shape of the first embodiment, the radiation plate can be appropriately cut from four directions. It is possible to provide a bar lock device having the core members 16 and 17 that can bend the portions 16d and 17d and is excellent in workability.

  Next, a third embodiment of the present invention will be described. The bar lock device 1 according to the third embodiment is the same as that of the first embodiment, but a part of the configuration and operation is different from that of the first embodiment. Hereinafter, differences from the first embodiment will be described.

  FIG. 8 is a schematic diagram illustrating the operation of the bar lock device 1 according to the third embodiment, where (a) illustrates a state before an attack and (b) illustrates a state at the time of an attack. First, as shown in FIG. 8 (a), in the third embodiment, the core members 16 and 17 have the two opposing plate portions 16a bent and form a slope before the clamping force F1 is applied. It has become. That is, each of the opposing plate portions 16a and 17a has a structure in which the cross section has a turtle-bracket shape (that is, a square bracket shape in which the tip side is slightly opened) and is arranged so that the open side of the bracket faces inward.

  As shown in FIG. 8B, when the bolt clipper BC is operated and the cutting operation by the two cutting blades D is performed, the clamping force F1 acts on the opposing plate portions 16a and 17a, and the opposing plate portion 16a. , 17a bend. The opposing plate portions 16a and 17a have already formed a slope, but by bending, the slope along the cutting blade D is further formed, and the pinching force F1 acts on this slope, so that the fulcrum F The force F2 at which the core members 16 and 17 are separated from each other is further increased. Thereby, the core materials 16 and 17 come further away from the bolt clipper BC, and the core materials 16 and 17 are hardly cut. Similarly, the core members 16 and 17 are further away from the bolt clipper BC even when attacking from directions different by 90 °, and the core members 16 and 17 are hardly cut.

  In this way, according to the bar lock device 1 according to the third embodiment, it is not necessary to increase the cross-sectional area of the core members 16 and 17, and it is possible to suppress a decrease in the anti-theft property while suppressing the weight. In addition, since the groove portion G is provided, it is possible to further suppress the prevention of theft prevention.

  In addition, according to the third embodiment, the opposing plate portions 16a and 17a of the core members 16 and 17 have a turtle-bracket shape in cross section, so that a slope is formed before the clamping force F1 acts. Further, it is easy to generate a force separating from the fulcrum F, and the opposing plate portions 16a and 17a bend from this state, so that it is possible to further improve the anti-theft property.

  Next, a fourth embodiment of the present invention will be described. The bar lock device 1 according to the fourth embodiment is the same as that of the first embodiment, but a part of the configuration and operation is different from that of the first embodiment. Hereinafter, differences from the first embodiment will be described.

  FIG. 9 is a schematic diagram illustrating the operation of the bar lock device 1 according to the fourth embodiment. FIG. 9A illustrates a state before the attack, and FIG. 9B illustrates a state at the time of the attack. First, as shown in FIG. 9A, in the fourth embodiment, the core members 16 and 17 are formed at two opposing plate portions 16a and 17a arranged substantially in parallel and at the end portions of the counter plate portions 16a and 17a. It consists of connecting plate portions 16b and 17b that connect them, and the cross section is substantially U-shaped.

  As shown in FIG. 9B, when the bolt clipper BC is operated and the cutting operation by the two cutting blades D is performed, the clamping force F1 acts on the opposing plate portions 16a and 17a, and the opposing plate portion 16a. , 17a bend. At this time, since the cross-sections of the core members 16 and 17 are substantially U-shaped, the ends of the opposing plate portions 16a and 17a far from the connection plate portions 16b and 17b are bent, and in a bent state. An inclined surface along the cutting blade D is formed. Then, when the clamping force F1 acts on the slope, the force F2 that separates the cores 16 and 17 from the fulcrum F is increased. Thereby, the core materials 16 and 17 come away from the bolt clipper BC, and the core materials 16 and 17 are hardly cut.

  In the fourth embodiment, as long as at least one of the two opposing plate portions 16a is bent unless it is attacked from the side of the connecting plate portions 16b and 17b of the core members 16 and 17, it is cut from three directions. The counter plate portion 16a can be appropriately bent with respect to

  In this manner, according to the bar lock device 1 according to the fourth embodiment, it is not necessary to increase the cross-sectional area of the core members 16 and 17, and it is possible to suppress a decrease in the anti-theft property while suppressing the weight. In addition, since the groove portion G is provided, it is possible to further suppress the prevention of theft prevention.

  Furthermore, according to the fourth embodiment, since the cross-sections of the core members 16 and 17 are substantially U-shaped, it is only necessary to perform cutting or the like from one direction on a solid quadrangular prism-shaped metal material, It is possible to provide the bar lock device 1 having the cores 16 and 17 that are further excellent in workability.

  Next, a fifth embodiment of the present invention will be described. The bar lock device 1 according to the fifth embodiment is the same as that of the first embodiment, but is partially different in configuration and action from that of the first embodiment. Hereinafter, differences from the first embodiment will be described.

  FIG. 10 is a schematic diagram illustrating the operation of the bar lock device 1 according to the fifth embodiment, where (a) illustrates a state before an attack and (b) illustrates a state at the time of an attack. First, as shown in FIG. 10A, in the fifth embodiment, the rod 11 includes a plurality of (two) flexure pieces FP arranged adjacent to the core members 16, 17 in addition to the core members 16, 17. I have. The number of flexure pieces FP is not limited to a plurality, and may be one. Further, in the fifth embodiment, the rod 11 has a structure in which the core materials 16 and 17 and the bending piece FP are enclosed by the resin material 18.

  Specifically, each of the core members 16 and 17 and the two bending pieces FP is configured by a flat plate. The two bending pieces FP formed of a flat plate are arranged so as to sandwich the core members 16 and 17 formed of a flat plate, and are arranged so as to have an approximately H shape in a cross-sectional view. Further, the bending piece FP is designed to have a thickness (thickness thinner than the core materials 16 and 17) to be bent with respect to the clamping force.

  As shown in FIG. 10B, it is assumed that the bolt clipper BC is operated on the rod 11 and the cutting operation by the two cutting blades D is performed. In this case, the two cutting blades D reach the bending piece FP while tearing the resin material 18 and apply a clamping force F1 to the bending piece FP. At this time, as shown in FIG. 10B, the bending piece FP is bent prior to being cut by the cutting blade D. In particular, in the fifth embodiment, the bending piece FP is disposed adjacent to the core members 16 and 17, and when a force from the bolt clipper BC or the like is applied, the bending piece FP is bent with the core members 16 and 17 as a support and is easily bent. It is an arrangement.

  And the bending piece FP will increase the force F2 in which the core materials 16 and 17 leave | separate from the fulcrum F using the clamping force F1 in the bent state rather than before bending. That is, when the core members 16 and 17 are to be cut by the bolt clipper BC, the bending piece FP is bent to form an inclined surface along the cutting blade D (more preferably an inclined surface in line contact with the cutting blade D). . When this slope is formed, if a force F1 is applied to the slope, the force F2 away from the fulcrum F is generated as a component force with respect to the cores 16 and 17 through the resin material 18. Thereby, the core materials 16 and 17 come away from the bolt clipper BC, and the core materials 16 and 17 are hardly cut.

  As shown in FIG. 10 (c), even when the attack is performed from a direction different by 90 °, the flexure piece FP is the core material 16 as in the case described with reference to FIG. 10 (b). , 17 before being cut by the cutting blade D, the core members 16 and 17 are bent as support. As a result, the flexure piece FP increases the force F2 that is separated from the fulcrum F as a component force. At this time, both of the two bending pieces FP are bent to form a slope, and the force F <b> 2 away from the fulcrum F is increased.

  In this way, according to the bar lock device 1 according to the fifth embodiment, the bending force F1 is bent with respect to the rotation force F1 with rotation, and the clamping force F1 is used more than before bending in the bent state. Therefore, the rod 11 is separated from the fulcrum F of the cutting tool with respect to the cutting operation by the cutting tool such as the bolt clipper BC. Thus, the core members 16 and 17 can be made difficult to cut. Thereby, it is not necessary to enlarge the cross-sectional area of the core materials 16 and 17, and the fall of anti-theft property can be suppressed, suppressing weight.

  Further, since the core members 16 and 17 and the bending piece FP are arranged in an H-shaped section, the bending piece FP can be appropriately bent with respect to the cutting from the four directions with respect to the H shape. Can respond to attacks.

  Moreover, since all the core materials 16 and 17 and the bending piece FP are formed with the flat plate, the rod 11 excellent in workability can be provided.

  Furthermore, since the bending piece FP is supported by the core members 16 and 17 and bent, the structure can be easily bent.

  As described above, the bar lock device according to the present invention has been described based on the embodiment. However, the present invention is not limited to this, and modifications may be made without departing from the spirit of the present invention. If so, the embodiments may be combined or other techniques may be combined.

  For example, in the above embodiment, the bar lock device 1 is not limited to the cross-sectional shape shown in FIGS. It may be a letter shape. That is, the shape is not particularly limited as long as the force in the direction away from the fulcrum F of the clamping force F1 is increased by bending the pinching force F1 to form a slope.

  Further, in the fifth embodiment, the core members 16 and 17 and the two flexure pieces FP are arranged so as to be substantially H-shaped in a cross-sectional view. The rectangular column parts 16c and 17c and the four radiation plate parts 16d and 17d are separated, the square column parts 16c and 17c are the core members 16 and 17, and the four radiation plate parts 16d and 17d are bent with the flexure piece FP. It may be configured to. Similarly, the connection plate portions 16b and 17b and the counter plate portions 16a and 17a of the third and fourth embodiments may be configured separately. In addition, if the bending piece FP is bent to form an inclined surface, the cross section is formed by the core members 16 and 17 and the bending piece FP as long as the force in the direction away from the fulcrum F of the clamping force F1 is increased. It may be a substantially circular shape or a substantially square shape that is hollow, and the cross section may be a substantially D shape or a substantially Z shape.

1: Bar lock device 10: Chain-like restraint 11: Plural rods 12: Lock connecting rod 12a: Removable rod (other member)
12b: Locking portion 12c: Base portion 13: Intermediate rod 14: Connection opening 14a: Through hole 14b: Bottomed hole 15: Connection pin 15a: Male screw portion 15b: Breaking guide 15c: Screw cutting portions 16, 17: Core material 16a, 17a: Opposing plate part (flexible part)
16b, 17b: Connection plate part (base part)
16c, 17c: Quadrangular prism (base)
16d, 17d: Radiation plate part (flexible part)
18: Resin material 19: Cap 20: Locking device body 21: Casing 21a: Insertion hole 22: Cylinder lock 22a: Plug 23: Lock piece 23b: Locking piece 23c: Stopper protrusion 24: Torsion spring 25: Stopper block A: Locking Target BC: Bolt clipper C: Connection member (other member)
D: Cutting blade (cutting member)
F: fulcrum F1: clamping force F2: force away from the fulcrum FP: flexure piece G: groove K: mechanical key

Claims (4)

At least one end of a chain-like restraint formed by rotatably connecting a plurality of rods is configured to be detachable from the lock device main body, and is formed when the end is attached to the lock device main body. A bar lock device for restraining a locked object by a closed loop of a chain-like restraint,
The plurality of rods have a metal core,
The core material is bent with respect to the clamping force accompanied by the rotation by two cutting members extending around the same fulcrum, and from the fulcrum using the clamping force than before being bent in the bent state. A bar lock device comprising: a bending portion that increases a force of separating the core material. The plurality of rods have other members connected to a base portion excluding the bending portion of the core material at both end portions of the core material, and separate these members between the bending portion and the other member. The bar lock device according to claim 1, wherein a groove is formed. The core member is configured to have an H-shaped cross section including two opposing plate portions disposed to face each other and a connection plate portion connecting the two opposing plate portions, and the two opposing plate portions are The bar lock device according to claim 1, wherein the bar lock device functions as the bending portion. At least one end of a chain-like restraint formed by rotatably connecting a plurality of rods is configured to be detachable from the lock device main body, and is formed when the end is attached to the lock device main body. A bar lock device for restraining a locked object by a closed loop of a chain-like restraint,
The plurality of rods include a metal core material, a resin material that includes the core material, and a flexure piece that is included in the resin material together with the core material,
The flexure piece bends with respect to the clamping force accompanied by rotation by two cutting members extending around the same fulcrum, and from the fulcrum using the clamping force rather than before bending in the bent state. A bar lock device characterized by increasing a force of separating the core material.

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