JP5707368B2 - Lock protection device - Google Patents

Description

  The present invention relates to a lock protection device that can prevent the locks attached to locked objects such as doors and boxes of buildings from being broken.

  A door or box of a house, a warehouse, a safe, or the like may be locked with a padlock attached to prevent others from opening it and stealing, destroying, or mischiefing the inside. Padlocks are made of metal, but cases where the padlocks are destroyed by cutting thin vines with a cutting tool such as a gold cutter or nippers, and the cases where the padlocks are illegally opened and damaged are often problematic. ing. Conventionally, a technique for covering and protecting a padlock has been proposed in order to prevent the padlock from being broken by a cutting tool. For example, the padlock cover disclosed in Patent Document 1 is a wall that forms an internal space for accommodating at least a vine portion of a padlock that is locked in a state where the hang portion of the engaged object is inserted into the engagement hole. The wall has a rectangular cylindrical peripheral wall surrounding the internal space, and a bottom wall that closes one of the openings formed by the peripheral wall, and a part of the peripheral wall is engaged. An insertion hole for inserting the joint portion was provided.

JP 2008-184779

  However, in the padlock cover of Patent Document 1, one end side of the peripheral wall is closed by the bottom wall to cover the padlock, and only the other end side is opened, and is provided in a rectangular cylinder shape slightly larger than the padlock. Because there is no gap to put a finger into the internal space of the peripheral wall, it is difficult to operate the internal padlock, and it is difficult to visually check the internal padlock and the engagement hole of the engaged object, so locking operation and release operation There was a risk that it took time and effort. In addition, when the padlock cover of Patent Document 1 is used, for example, as a padlock that locks the door of a building, a cutting tool is inserted from the gap between the padlock cover and the latch attached to the door, and the latch is In some cases, the annular part to be received is cut, and it has been desired to develop a technique with higher crime prevention.

  The present invention has been made in view of the above-described conventional problems. One object of the present invention is to reliably protect the lock from being destroyed by a cutting tool, and to easily and smoothly perform the locking operation and normal unlocking operation of the lock. It is an object of the present invention to provide a lock protection device that can be used in the future. Furthermore, the other objective is to provide the lock protection apparatus which can improve a crime prevention function.

In order to solve the above-mentioned problems, the present invention has a cylindrical peripheral wall 12 which is accommodated inside the padlock 50 and has openings 18 at both ends, and a cylindrical peripheral wall 12 which is perforated at an intermediate position in the axial direction of the cylindrical peripheral wall 12. An insertion hole 14 through which the latch annular portion 62 is inserted , and the operator's finger F is placed in the cylindrical peripheral wall 12 at a position different from the insertion hole 14 at an intermediate position in the axial direction. It is composed of a lock protection device 10 having a finger insertion hole 20 that can be locked in and placed in the box .

Further, the finger insertion hole 20 and the insertion hole 14 may be arranged to face each other in the diameter direction of the cylindrical peripheral wall 12.

  Further, there is provided barrier means 24 that protrudes outward from the outer surface of the cylindrical peripheral wall 12 and narrows or closes the gap between the cylindrical peripheral wall 12 and the locking object in the vicinity of the insertion hole for inserting the annular portion 62 of the latch. It may be that it was done.

The present invention also includes a cylindrical peripheral wall 12 which is accommodated inside the padlock 50 and has openings 18 at both ends, and is drilled at an intermediate position in the axial direction of the cylindrical peripheral wall 12. A gap between the cylindrical peripheral wall 12 in the vicinity of the insertion hole and the object to be locked, which protrudes outward from the outer surface of the cylindrical peripheral wall 12 and has an insertion hole 14 into which the portion 62 is inserted. The lock protection device 10 is provided with a barrier means 24 for narrowing or closing the door.

  The barrier means 24 includes two straight members 24 that are formed parallel to the central axis Z of the cylindrical peripheral wall 12, are arranged opposite to each other with the insertion hole 14 therebetween, and are fixed to the outer surface of the cylindrical peripheral wall 12. It may be included.

  The barrier means 24 may include a protruding neck portion 26 that protrudes outward from the hole edge of the insertion hole 24 of the cylindrical peripheral wall 12.

  The cylindrical peripheral wall 12 may be provided in a cylindrical shape.

  According to the lock protection device of the present invention, a cylindrical peripheral wall that is accommodated in a padlock and is open at both ends, and is drilled at an intermediate position in the axial direction of the cylindrical peripheral wall. Since it is equipped with an insertion hole for inserting the part, the padlock can be surrounded by a cylindrical peripheral wall to securely protect it from cutting and destruction, and the internal padlock can be locked and normally unlocked through the openings at both ends. Can be reliably and smoothly performed.

  Further, in the cylindrical peripheral wall, a finger insertion hole that can be locked by putting an operator's finger into the internal space at a position different from the insertion hole at an axial intermediate position is formed, In addition to accessing the inside from the openings at both ends of the cylindrical peripheral wall, the finger of the hand is inserted into the internal space from the axial middle position of the cylindrical peripheral wall through the finger hole, and the padlock etc. is operated And operability can be improved.

  The finger insertion hole and the insertion hole are arranged to face each other in the diametrical direction of the cylindrical peripheral wall, so that the padlock that engages with the annular portion inserted from the insertion hole can be easily accessed. Easy and smooth locking and unlocking operations.

  Further, a configuration is provided in which a barrier means is provided which projects outward from the outer surface of the cylindrical peripheral wall and narrows or closes the gap between the cylindrical peripheral wall near the insertion hole for inserting the annular portion of the latch and the locking object. By doing so, it is possible to satisfactorily prevent the latch from being cut and destroyed by inserting the blade of the cutting tool from the gap between the cylindrical peripheral wall and the locking object.

  Further, the barrier means includes two straight members that are formed in parallel to the central axis of the cylindrical peripheral wall, are opposed to each other with the insertion hole interposed therebetween, and are fixed to the outer surface of the cylindrical peripheral wall. The barrier means can be specifically realized with a simple configuration and can be manufactured at low cost.

  Further, the barrier means includes a projecting neck projecting outward from the hole edge of the insertion hole of the cylindrical peripheral wall, so that the barrier means can be specifically realized with a simple configuration and manufactured at low cost. it can.

  In addition, the cylindrical peripheral wall is structured to be cylindrical, so that the space efficiency of the cylindrical peripheral wall is good and the cutting tool can prevent intrusion when the blade is opened. The space for operation can be secured with a simple structure.

1 is a perspective view of a lock protection device according to a first embodiment of the present invention. It is the perspective view which showed the back side of the lock protection apparatus of FIG. It is a front view of the lock protection apparatus of FIG. It is a rear view of the lock protection apparatus of FIG. It is a top view of the lock protection apparatus of FIG. It is principal part sectional drawing and an effect | action explanatory drawing of the AA line of the lock protection apparatus of FIG. It is principal part sectional drawing of the BB line of the lock protection apparatus of FIG. It is principal part sectional drawing of CC line of the lock protection apparatus of FIG. It is action | operation explanatory drawing of the lock protection apparatus of FIG. It is the perspective view seen from the back side of the lock protection apparatus which concerns on the 2nd Embodiment of this invention. It is the perspective view seen from the front side of the lock protection apparatus of FIG. It is a cross-sectional view of the state which attached the lock protection apparatus of FIG. 10 to the lock. It is the perspective view seen from the back side of the lock protection apparatus which concerns on the 3rd Embodiment of this invention. It is the perspective view seen from the front side of the lock protection apparatus of FIG. It is a cross-sectional view of the state which attached the lock protection apparatus of FIG. 13 to the lock. It is a perspective view of the lock protection apparatus which concerns on the 4th Embodiment of this invention. It is a cross-sectional view of the lock protection device of FIG. It is explanatory drawing of an example which attached the padlock to the money box which has a locking target object.

  Embodiments of the lock protection device of the present invention will be described below with reference to the accompanying drawings. The lock protection device according to the present invention prevents, for example, a lock that is attached to a door of a building, a lid of a box, etc., from being opened and cut or broken with a cutting tool or the like so that the door, the lid, etc. are illegally opened. In order to prevent this, it is a lock-breaking prevention device for crime prevention that is installed in the lock portion.

  In the present embodiment, for example, as illustrated in FIG. 18, an example in which the present invention is applied to a padlock 50 that locks a money box as the lock target BX will be described. The object to be locked is not limited to a money box, but may be a building such as a warehouse or a warehouse, an indoor sliding door or hinged door, a safe door, a box lid, or any other object. The padlock 50 is, for example, a conventionally known padlock, and has a main body 52 and an inverted U-shaped temple portion 54, and the temple portion 54 is hooked on an annular portion 62 of an engaged object. And locked with a lock mechanism inside the main body 52. When the padlock 50 is unlocked with a key (not shown), one end of the temple portion 54 is detached from the main body 52 and rotates. In FIG. 18, the padlock 50 is engaged with, for example, an annular portion 62 that receives the movable arm portion 61 of the latch 60 fixed to the locking object BX. The latch 60 is attached to, for example, a drawer-like opening portion of a money box, and the movable arm portion 61 attached to one side (for example, the drawer side) of the opening portion is connected to the other side (for example, the box) of the opening portion. The opening portion is tightened by being engaged with an annular portion 62 that is attached to the main body side) as a receiving metal portion and is detachably engaged with the movable arm portion 61. The movable arm portion 61 is assembled to a fixed plate 63 fixed to the money box so as to be rotatable around a vertical axis via a pivot 64, and a long hole 65 is penetrated on the distal end side. The annular portion 62 is assembled to a fixed plate 66 fixed to the money box via a rotation shaft 67 so as to be rotatable around a horizontal axis. When the annular portion 62 is inserted into the elongated hole 65 of the movable arm portion 61 and the annular portion 62 is rotated 90 degrees around the rotation axis, the state is switched between a locked state and an unlocked state. In addition, the structure of a padlock, other latches, and the structure of an annular part are not limited to the example mentioned above, Other arbitrary structures may be sufficient. The padlock is not limited to a structure that is unlocked with a key, but may be a dial-type or number-type lock that does not use a key.

  In this embodiment, as shown in FIGS. 1 and 2, the lock protection device 10 includes a cylindrical peripheral wall 12 having both ends opened to accommodate the padlock 50, and an insertion hole 14 provided in the cylindrical peripheral wall 12. ing.

  As shown in FIGS. 1, 2, and 6, the cylindrical peripheral wall 12 forms a hollow internal space 16, and is arranged in the lock portion of the lock target BX in a state where the padlock 50 is accommodated in the internal space 16. Is done. The cylindrical peripheral wall 12 has openings 18 at both ends, and the internal space 16 communicates with the outside through the openings 18 at both ends. Therefore, the lock protection device 10 is constituted by a cylindrical body having both ends open, and the cylindrical peripheral wall is the first protection means or cover means that surrounds and covers the padlock 50. Thereby, although it is a structure which can protect the padlock 50, since the inside can be accessed from either opening 18 of both ends, the smooth operation of the padlock accommodated inside is realizable.

  As shown in FIGS. 1, 2, and 5, in the present embodiment, the cylindrical peripheral wall 12 is made of a hard metal material such as stainless steel and is formed in a cylindrical shape. As shown in FIG. 6, the axial length of the cylindrical peripheral wall 12 is set to be somewhat longer than the vertical size including the main body 52 and the temple portion 54 of the padlock 50, for example. It is configured so that it can be accommodated at an intermediate position separated from the openings 18 at both ends to some extent. Basically, the axial length of the cylindrical peripheral wall 12 may be arbitrary as long as it can accommodate the padlock. In the present embodiment, the cylindrical peripheral wall 12 has a structure having openings at both ends. Therefore, the axial length of the cylindrical peripheral wall 12 is such that the opening 18 at the end is close to the temple portion 54 of the padlock housed inside. The blade NE of the cutting tool N is opened at the end by making the length so that the opening 18 at both ends and the temple portion 54 of the padlock 50 accommodated therein are separated from each other than the relatively short length. It is difficult to reach from the heel to the vine, which is advantageous in terms of protection. The cylindrical peripheral wall 12 may be sized so that the lower end side of the padlock main body 52 slightly protrudes outside the cylinder. As shown in FIGS. 6 and 7, the inner diameter of the cylindrical cylindrical peripheral wall 12 is set to be slightly larger than the lateral size of the padlock 50, for example, and at the same time, a cutting tool N such as a gold cutter is used. The size is such that it cannot be inserted when the open / close blade is opened. Since the cylindrical peripheral wall 12 has a circular cross section perpendicular to the central axis Z, space efficiency is good, and a space for inserting a finger can be secured while the padlock 50 is accommodated therein, and at the same time, the insertion of the cutting tool N is prevented. Can do. For example, the cylindrical peripheral wall 12 may have any other shape such as a polygon such as a square tube. However, in the case of a shape such as a rectangular tube, for example, if the space inside the peripheral wall is to be secured to a certain extent, the width in the diagonal direction and the long axis direction is widened, so the cutting tool enters with the blade open. There is a high risk that Therefore, the space for operating the padlock inside the cylindrical peripheral wall has to be manufactured relatively narrow compared to the case of the cylindrical shape, so that the cylindrical peripheral wall has both ends in terms of both a protective function and operability. The cylindrical shape of the opening is advantageous.

  As shown in FIGS. 2, 4, 6, and 7, the insertion hole 14 has a cylindrical shape for inserting an annular portion 62 on which the padlock vine 54 is hooked into the interior 16 of the cylindrical peripheral wall 12 when locked. It is a hole drilled in the peripheral wall 12. The insertion hole 14 is drilled at an intermediate position in the axial direction of the cylindrical peripheral wall 12. In the present embodiment, the insertion hole 14 is disposed at a substantially central position of the axial length of the cylindrical peripheral wall 12, that is, a position of about ½. The insertion hole 14 is formed in a substantially circular shape having a diameter slightly larger than the outer diameter of the annular portion 62, for example. The position of the insertion hole 14 is engaged with the annular portion 62 in the structure provided at a position somewhat apart from the opening 18 at both ends, rather than the structure provided at a position close to the opening 18 on the end side of the cylindrical peripheral wall 12. The open / close blade of the cutting tool is difficult to reach against the temple portion 54 of the padlock 50, which is advantageous in terms of a protective function. Therefore, the insertion hole 14 is set at an intermediate position in the axial length so as to be separated from the both end openings 18 of the cylindrical peripheral wall to some extent. That is, according to the setting of the axial length of the cylindrical peripheral wall 12 and the position of the insertion hole 14 as described above, the temple portion 54 of the padlock is disposed at an intermediate position in the axial direction of the cylindrical peripheral wall, and the cylindrical peripheral wall 12 is at both ends. Even if it is the structure which opened this, the structure which can protect a padlock satisfactorily can be implement | achieved.

  As shown in FIGS. 1, 3, and 6, a finger insertion hole 20 is perforated at an intermediate position in the axial direction of the cylindrical peripheral wall 12. The finger insertion hole 20 is provided at a position different from the insertion hole 14 in order to allow the operator's fingers to enter the internal space 16 from the axial intermediate position of the cylindrical peripheral wall 12 and to access the internal space 16. This is an auxiliary hole for operation. Thereby, the locking operation and the unlocking operation of the padlock 50 in which the temple portion 54 is disposed at the intermediate position in the axial direction separated to some extent from the both end openings 18 inside the cylindrical peripheral wall 12 through the finger insertion hole 20 are favorably performed. Therefore, the operability including the locking operation and the unlocking operation can be improved. In the present embodiment, the finger insertion hole 20 is formed in a circular shape, for example, and has a size that allows one finger (for example, a thumb) to be inserted. The finger insertion hole 20 is set at a position opposite to the insertion hole 14 in the diameter direction of the cylindrical peripheral cylindrical wall 12. In other words, the finger insertion hole 20 and the insertion hole 14 are positioned at an intermediate position in the axial direction of the cylindrical peripheral wall 12 and are shifted from each other by 180 degrees around the central axis Z of the cylindrical peripheral wall 12 or on the central axis Z. It is set to a positional relationship facing the direction orthogonal to the direction. Therefore, as shown in FIG. 9, the finger F inserted from the finger insertion hole 20 can easily access the annular portion 62 inserted into the insertion hole and the padlock 50 engaged with the annular portion 62, and has good operability. Is realized. The position of the finger insertion hole 20 may be arbitrary as long as it is an intermediate position in the axial direction of the cylindrical peripheral wall 12. For example, the finger insertion hole 20 may be positioned 90 degrees or 120 degrees around the central axis Z with respect to the insertion hole 14. It may be a position shifted in the axial direction of the cylindrical peripheral wall. Further, the number of finger insertion holes 20 is not limited to one, and a plurality of finger insertion holes 20 may be provided.

  As shown in FIGS. 2, 4, and 7, the cylindrical peripheral wall 12 includes an outer surface of the cylindrical peripheral wall 12 in the vicinity of the insertion hole 14 into which the annular portion 62 of the latch is inserted, and a wall surface of the locking object BX. Barrier means 22 for narrowing the space H is provided. The barrier means 22 is configured by a protruding portion that protrudes from the outer surface of the cylindrical peripheral wall 12 toward the outer locking object BX. By narrowing the gap with the barrier means 22, it is possible to satisfactorily prevent the latch or the annular portion 62 attached to the locking object BX from being cut and broken by inserting the blade of the cutting tool N from the gap. Can do. Moreover, since a clearance gap becomes narrow, stability is improved in the state which the cylindrical surrounding wall 12 of a cylindrical shape is hard to rattle, and has arrange | positioned in front of a lock. Therefore, the internal padlock 50 can be protected by the cylindrical peripheral wall 12, and at the same time, the latch 60 or the annular portion 62 can be protected on the outer side of the cylindrical peripheral wall 12, and the protective function can be improved. That is, the barrier means 22 can be said to be a second protective means or cover means that covers a part of the annular portion 62 that engages with a latch 60 or a padlock attached to an object to be locked outside the cylindrical peripheral wall. .

  In the present embodiment, the barrier means 22 is formed, for example, in a straight line parallel to the central axis Z of the cylindrical peripheral wall 12, and a pair of opposingly arranged at a predetermined interval so as to sandwich the insertion hole 14 therebetween. The straight member 24 is included. The straight member 24 is made of, for example, a substantially rectangular plate member made of metal such as stainless steel and long in one direction. The straight member 24 has one long side in a state in which the short side direction is substantially perpendicular to the wall surface of the object to be locked at a position separated from the position where the insertion hole 14 of the cylindrical peripheral wall 12 is formed in the circumferential direction. The portion is fixed to the outer surface of the cylindrical peripheral wall 12 by welding and protrudes from the cylindrical peripheral wall 12. The length of the straight member 24 is at least longer than the diameter of the insertion hole 14. In the present embodiment, the cylindrical peripheral wall has a cylindrical shape and the outer surface is formed with a curved surface, so that a gap is gradually formed gradually away from the wall surface of the locking object along the curved surface from the position of the insertion hole. The gap can be narrowed (or closed) by the straight member 24 protruding from the outer surface of the cylindrical peripheral wall. In the present embodiment, as shown in FIGS. 7 and 8, the protruding width of the straight member 24 from the outer peripheral curved surface of the cylindrical peripheral wall 12 is closest to the locking object of the cylindrical peripheral wall 12 in a side view, for example. It is provided so as to be substantially aligned with the portion. Note that the protruding width of the straight member 24 may be a protruding width that narrows the gap or closes the gap so that the cutting blade NE of the cutting tool N does not enter. It may be provided so as to protrude further than the adjacent portion. The barrier means 22 may be configured to protrude from the cylindrical peripheral wall 12 with a projecting width that completely closes the gap between the outer surface of the cylindrical peripheral wall 12 and the outer surface of the object to be locked. Further, the barrier means 22 may be a four-circumferential wall or a circumferential wall protruding outward from the cylindrical peripheral wall so as to surround the periphery of the insertion hole, or may be constituted by a block member or the like.

  As shown in FIG. 9, when the lock protection device 10 is attached to the padlock 50, for example, the annular portion 62 attached to the object to be locked is engaged with the movable arm portion 61 of the latch engaged with the annular portion 62. The cylindrical peripheral wall 12 is inserted into the inside through the insertion hole 14 of the cylindrical peripheral wall 12 of the lock protection device 10 and is arranged close to the object to be locked. The padlock 50 is inserted into the inside through the opening 18 on one end side of the cylindrical peripheral wall 12, and the temple portion 54 of the padlock 50 is hooked on the annular portion 62, and then the temple portion 54 is locked to the main body 52. At the time of this locking operation, as shown in FIG. 9, the cylindrical peripheral wall 12 has openings 18 at both ends, and a finger insertion hole 20 is provided at an intermediate position in the axial direction. In addition, it is easy to access by inserting a finger into the inside from the finger hole, and the locking operation can be performed smoothly. In a state where the lock protection device 10 is attached, as shown in FIG. 4, when the open / close blade NE of the cutting tool N is opened, it cannot be inserted into the inside 16 of the cylindrical peripheral wall 12 as shown by a solid line. Yes. Further, when the open / close blade of the cutting tool N is closed, even when the open / close blade NE can be inserted into the inside 16 of the cylindrical peripheral wall 12 as shown by the two-dot chain line in FIG. Then, the open / close blade NE cannot be opened. Thereby, the padlock 50 can be protected by the cylindrical peripheral wall 12, and the padlock 50 can be well prevented from being broken. At the same time, on the outer side of the cylindrical peripheral wall 12, the barrier means 22 prevents the opening / closing blade of the cutting tool from being inserted into the gap with the object to be locked, and the latch 60 and the annular portion 62 can be satisfactorily prevented. As a result, the protective function is improved, the lock can be more reliably protected from the vandalism, the security is high, and a high sense of security can be obtained. Further, when unlocking the lock normally, it is easy to access by inserting a finger into the inside through the opening 18 on both ends and the finger hole, and the unlocking operation can be performed smoothly. Since the lock protection device has good operability inside the cylindrical peripheral wall, the padlock is not limited to the key type, for example, it can be operated with a padlock such as a number type or dial type, and the type of padlock is limited. It is difficult and easy to use.

  Next, a lock protection device 10-2 according to a second embodiment of the present invention will be described with reference to FIGS. The same configurations and the same members as those of the first embodiment described above are denoted by the same reference numerals, and detailed description thereof is omitted. As shown in FIGS. 10, 11, and 12, the lock protection device 10-2 according to this embodiment has substantially the same configuration as that of the first embodiment, but the cylindrical peripheral wall 12 is provided with a finger insertion hole 20. It is not done. As shown in FIGS. 10 and 12, the straight member 24 constituting the barrier means 24 is made of, for example, a round steel having a circular cross section, and the curved shape of the cylindrical peripheral wall 12 by welding or the like. It is fixed to the outer surface. The protruding width of the straight member 24 is such that the outer surface of the cylindrical peripheral wall 12 protrudes further outward than the position closest to the wall surface of the locking object, and the side between the cylindrical peripheral wall and the locking object is H. From the side, it is set so as to close in a closed manner. In this embodiment, the finger insertion hole 20 may be provided. In the present embodiment as well, as in the first embodiment, it is possible to effectively protect the padlock and the latch, and at the same time, it is possible to obtain operational effects such as being able to obtain high operability.

Next, a lock protection device 10-3 according to a third embodiment of the present invention will be described with reference to FIGS. The same configurations and the same members as those of the first embodiment described above are denoted by the same reference numerals, and detailed description thereof is omitted. As shown in FIGS. 13, 14, and 15, the lock protection device 10-3 according to the present embodiment has substantially the same configuration as that of the first embodiment, but is directed outward from the hole edge of the insertion hole 14. A protruding neck portion 26 is provided. The protruding neck portion 26 is formed in, for example, a substantially cylindrical shape having a relatively short axial length, and is fixed to the cylindrical peripheral wall of the insertion hole 14 by welding. By projecting the periphery of the insertion hole 14 with the projecting neck portion 26, the space between the wall surface of the locking object is narrowed or closed, and the opening / closing blade of the cutting tool is prevented from being inserted into the gap with the locking object. The latch 60 can be prevented well. That is, in this embodiment, the barrier means 24 is configured to include the straight member 24 and the protruding neck portion 26. The projecting width of the straight member 24 projects, for example, further outward than a position closest to the wall surface of the locking target of the cylindrical peripheral wall 12, and the projecting end of the straight member 24 projects from the projecting neck portion 26. It is set to be approximately aligned with the edges. Also in the present embodiment, similar to the first embodiment, the padlock and the latch can be well protected, and at the same time, there can be obtained effects such as high operability.

Next, a lock protection device 10-4 according to a fourth embodiment of the present invention will be described with reference to FIGS. The same configurations and the same members as those of the first embodiment described above are denoted by the same reference numerals, and detailed description thereof is omitted. As shown in FIGS. 16 and 17, the lock protection device 10-4 according to the present embodiment has substantially the same configuration as that of the first embodiment, but the barrier means 22, that is, the straight member 24 is provided on the outer periphery of the cylindrical peripheral wall. Is not provided. Therefore, the lock protection device consists only of a hollow cylindrical body having openings 18 at both ends, and the insertion hole 14 and the finger insertion hole 20 are provided opposite to each other at an axial intermediate position of the cylindrical peripheral wall 12. Also in the present embodiment, it is possible to achieve the operational effects such as being able to protect the padlock well and at the same time obtain high operability. Furthermore, the structure is simple and easy compared to the above embodiment, and can be manufactured at low cost.

  The lock protection device of the present invention described above is not limited to the configuration of only the above-described embodiment, and may be modified arbitrarily without departing from the essence of the present invention described in the claims. Good.

  The lock protection device of the present invention can be attached to a lock such as a warehouse or a warehouse, a sliding door or a hinged door in a room, a safe door, a box lid, a money box, etc. .

DESCRIPTION OF SYMBOLS 10 Lock protection device 12 Cylindrical peripheral wall 14 Insertion hole 18 Opening 20 Finger insertion hole 22 Barrier means 24 Straight member 26 Projection neck part 50 Padlock 62 Ring part

Claims (7)

A cylindrical peripheral wall with a padlock inside and open at both ends;
An insertion hole that is perforated at an intermediate position in the axial direction of the cylindrical peripheral wall, and into which the annular portion of the latch is inserted inside the cylindrical peripheral wall ;
A lock-protecting device characterized in that a finger insertion hole is formed in the cylindrical peripheral wall at a position different from the insertion hole at an intermediate position in the axial direction so that an operator's finger can be inserted into the internal space to perform a locking operation. . And the insertion hole finger pouch hole, lock protection device according to claim 1, characterized in that it disposed diametrically opposite the tubular wall. A barrier means is provided which projects outward from the outer surface of the cylindrical peripheral wall and narrows or closes the gap between the cylindrical peripheral wall in the vicinity of the insertion hole for inserting the annular portion of the latch and the locking object. The lock protection device according to claim 1 or 2 . A cylindrical peripheral wall with a padlock inside and open at both ends;
An insertion hole that is perforated at an intermediate position in the axial direction of the cylindrical peripheral wall, and into which the annular portion of the latch is inserted inside the cylindrical peripheral wall;
A barrier means is provided which projects outward from the outer surface of the cylindrical peripheral wall and narrows or closes the gap between the cylindrical peripheral wall in the vicinity of the insertion hole for inserting the annular portion of the latch and the locking object. A lock protection device according to the description. The barrier means includes two straight members that are formed in parallel with the central axis of the cylindrical peripheral wall, are opposed to each other with an insertion hole interposed therebetween, and are fixed to the outer surface of the cylindrical peripheral wall. The lock protection device according to 3 or 4 . The lock protection device according to any one of claims 3 to 5, wherein the barrier means includes a protruding neck portion protruding outward from a hole edge of the insertion hole of the cylindrical peripheral wall.   The lock protection device according to any one of claims 1 to 6, wherein the cylindrical peripheral wall is provided in a cylindrical shape.

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