JP4317492B2 - Lock - Google Patents

Description

  The present invention relates to a lock used for joinery, furniture, a fence, a helmet, and the like. This locking device can also be used as a connecting device such as a belt.

  Patent Document 1 discloses a belt stopper capable of fixing a belt which is an example of a flat plate. Further, Patent Document 2 discloses a lid stopper for stopping an opening / closing lid of bags.

  The stoppers described in the conventional patent documents 1 and 2 are each locked in a locked state after the belt-like flat plate is wound or when the lid of the bag body is closed. As described above, the belt-like flat plate or the lid of the bag body is not locked in the locked state. Therefore, for example, when the operation unit for opening is operated, the locked state is easily canceled, and the flat plate body and the opening / closing lid can be made free.

Now, there is a demand for tools that can be used as locks or couplings for joinery, furniture, fences, helmets, and the like. In some cases, it may be desirable to constrain human and animal freedoms in terms of executing legal objectives, maintaining social order, and family peace. For example, in recent years, it has been reported that the thief's tricks have deteriorated and "turning thumbs" and "picking" are being carried out. Therefore, it would be a great pleasure to be able to easily attach an auxiliary “lock stop” to the entrance and locker of a building at a low cost, in addition to the locks manufactured by the lock maker. In addition, if a typhoon goes north, it is ideal if a fence can be attached to the window with a simple operation. It would also be nice if a fence could be attached to the doorway of a staircase or a nursing bed by a simple operation so that infants, care recipients, etc. would not cause an accident. In addition, some inmates slam their heads against walls, etc. in an attempt to hurt themselves because of mental anomalies. In such a case, it is convenient to lock the flap-like fastening belt of the helmet for protecting the head so that the fastening belt cannot be removed by itself.
JP 2003-341711 A Japanese Patent Laid-Open No. 7-204010

  The first object of the present invention is to propose a locking device having high versatility as a crime prevention device, a connecting device, and a fixing device from the viewpoint described in the background art of the previous section. The purpose of the present invention from the viewpoint of the configuration is that the operation of mounting the obstacle in the locked state is simple, but unless the predetermined pressing key is present, the locked state is easily released and the obstacle is removed from the locking rod. It is not possible. Further, once the obstacle is mounted on the locking rod of the base body, the obstacle cannot be easily detached from the locking rod. In particular, even if a thief or a person with restricted freedom inserts a tool such as a screwdriver into one (one side) of the obstacle's key insertion opening, the locked state cannot be released easily. is there. Other purposes are that it is inexpensive and can be used as a locking device or a connecting device for fixing the connecting end of a flat plate by a simple mounting action or mounting operation.

The locking device of the present invention includes a base body having a locking bar and a spring force of a pair of left and right interior springs pressed against the base body and against the engaging head of the locking bar. A pressing-type obstacle having a pair of left and right clamping type locking pieces that are engaged with each other and when the obstacle combined with the base body in a locked state via a locking bar is removed, the clamping type lock inserted by the press manner in the key insertion opening of the opposite end surfaces of the support, and has a pair of engaging claws widening uniformly press radially outwardly against the 該挟lifting type lock piece the spring force of the interior spring Consisting of a press key,
The obstruction body of the pressing method has an outer peripheral surface formed in a circular or square annular disc, and the clamping type lock piece in the middle plate opening in the annular cover constituting the obstruction member of the pressing method. Are separately assembled in an opposing state, and the internal spring constantly urges these clamping lock pieces in the radial inward direction to engage the locking rods, and further obstructs the pressing method. The body is rotatably locked to the locking rod (first embodiment).

  In the above configuration, the insertion tip of the engaging claw piece of the pressing key is formed in a mountain shape. The locking bar has a function of a support shaft, and the obstacle is locked to the locking bar so as to be rotatable. Other features of the invention are described in the Detailed Description section.

Further, the locking device of the present invention uses a base body having a locking bar, pressed against the base body so as to face the base body, and uses the repulsive force of the magnetic body against the engaging head of the locking bar. and when removing an annular failure of pressing type with left and right clamping type magnetic lock piece that engages, the annular disorder body coalesced locked via the locking bar to the base body, of the magnetic lock piece inserted by the press manner in the key insertion opening of the facing end surface, and characterized in that it consists of a pressing key having a pair of engaging claws widening uniformly press against the left and right lock pieces repulsive force of the magnetic body (Second embodiment).

Furthermore, the locking device of the present invention has a base body having a locking bar, pressed against the base body so as to face the base body, and exerts an attractive force of the magnetic body on the engaging head of the locking bar. when removing an annular failure of pressing type with left and right clamping type magnetic lock piece engaging by using, the annular disorder body coalesced locked via the locking bar to the base member, the locking piece And a pressing key having a pair of engaging claw pieces that are inserted into the key insertion opening on the opposite end face by a pressing method and that push the left and right lock pieces evenly against the attractive force of the magnetic body. (Third embodiment).

(1) In the invention described in the independent claim , the obstacle is locked to the engaging head in a locked state in a so-called one-touch type simply by pressing the obstacle against the engaging head of the locking rod of the base body. Can be made. Therefore, the mounting operation in the locked state is easy.
(2) On the other hand, when removing the obstacle united with the base body in the locked state via the locking rod, the left and right lock pieces are evenly resisted against the spring force of the internal spring or the repulsive force of the magnetic body. Without a pressing key having a pair of engaging claws to spread, the locked state cannot be easily eliminated. In other words, even if a screwdriver is inserted into one (one) of the key insertion openings formed on the opposing end surfaces of the left and right lock pieces, a force that evenly pushes both ends of the opposite end surfaces of each lock piece acts. Unless this is done, the locked state cannot be easily released.
(3) Further, once the obstacle body is engaged with the locking rod of the base body, for example, the left and right sandwiched locking pieces which are biased by the spring force of the pair of left and right interior springs are latched. since sandwich the neck as locked respectively engaged with the engaging head of the rod, locking force, or locking force becomes strong, it does not come off easily from the locking bar.
(4) As long as there are only locking rods and obstacles for the base body, they can be used as security tools, connecting tools, and fixing tools for joinery, furniture, fences, helmets, and the like. Therefore, the versatility of the application is high.
(5) In addition, by simple and reasonable structure, it is possible to achieve the primary object of the present invention.
(6) In addition, failure body so is locked rotatably on the engagement rod, for example, a thief is idle and releasing operation is inserted in one of the tool such as a screwdriver in the key insertion opening (one). Therefore, a thief or a person who is restrained by freedom cannot easily release the lock.
(7) Moreover , since it is protected by the annular cover, it is excellent in appearance and rich in durability.
(8) According to the second aspect of the present invention , various connection modes of the flat plate bodies are possible depending on the number of the locking bars and the manner of arrangement thereof.

  The best mode for carrying out the present invention shown in FIGS. 1 to 11 will be described below (first embodiment). The locking device X is basically a base body B (4.5.6.4.3.51) having a locking bar 9 and pressed against the base body so as to face the locking body. A pressing-type obstacle body 11 having left and right clamping type lock pieces 17.17 engaged with the engaging head 9b of the rod using the spring force of the internal spring 16.16 and locked to the base body When the obstacle united into the locked state is removed via the rod, it is inserted into the key insertion opening 29.29 formed on the opposite end surface of the lock piece, and the left and right lock pieces are connected to the spring force of the internal spring. And a pressing key 31 having a pair of engaging claw pieces 32.32 that spreads evenly against, for example, a movable body (for example, an open / close door, a sliding door, a shutter, a wheel, etc.) is locked to a fixed side member. Used for crime prevention. Further, it is used as a connecting member for a flat plate having a through hole through which a locking rod of the base body passes at the connecting end. Hereinafter, the basic configuration will be described.

(1) Base body The base body B of the first embodiment is a door frame of a joinery or a locker. In FIG. 1, the base body B is, for example, a vertical frame 4 on the side that constitutes an entrance of the building 1 and the free end 3 of the door 2 faces and / or an upper horizontal frame 5. When the base body B is the vertical frame 4 or the horizontal frame 5 itself, the base end portion 9a of the locking bar 9 is relative to the vertical frame 4 or the like so as to be orthogonal to the outer wall surface or the inner wall surface of the door 2. Fixed in a horizontal state.

  When the base body B is a long plate-like metal mounting base plate 6 that can be fixed to the door frame, the base end portion 9a of the locking rod 9 is orthogonal to the central portion of the mounting base plate 6. It is fixed by screwing or welding. The shape of the base body B is not particularly limited, and it is circular, square, heart-shaped, long plate-shaped, elongated plate-shaped, support column-shaped, end face L-shaped, cross-sectional shape corresponding to the application or the object to be locked. A letter shape, an end face channel shape, and the like are formed. Further, when the base body B is a mounting base plate 6 that is separate from the door frame of the joinery or locker, the vertical frame 4 or / or via the fixing means (not shown) such as an adhesive layer, a plurality of fasteners, and welding. And fixed to the horizontal frame 5. When the fixing means of the mounting base plate 6 is a fixing tool such as a screw or a nail, mounting holes for the fixing tool 8 are formed at both ends of the mounting base plate 6.

  Further, depending on the embodiment, a pair of mounting cylinders having internal threads are provided on the back side of the mounting base plate 6 so as to project apart from each other, and the mounting cylinders are inserted into the through holes of the vertical frame 4 or the like. Alternatively, the mounting cylinder may be screwed through the mounting seat plate. Thus, the attachment method and attachment object of the locking rod 9 of the present invention are various.

As shown in FIG. 3, the locking rod 9 having the function of a support shaft has a flat or umbrella-shaped engagement head 9 b formed at the protruding tip. The length of the locking bar 9 is not particularly limited, but at least a required length for locking the obstacle 11 of the annular disk , which will be described later, in a locked state by the engaging head 9b is necessary. Accordingly, the length of the shaft portion of the locking rod 9 is set corresponding to the thickness of the obstacle 11. The engaging head 9b of the locking rod 9 of this embodiment is formed flat, and a circumferential groove 10 is formed in a portion corresponding to the neck. Therefore, the engaging head portion 9b and the base end portion 9a have the same diameter.

  In FIG. 1, 7 is a lever handle of the door 1 and the base body B of the first embodiment uses a metal mounting base plate 6 that is separate from the door frame. 6 is fixed to the upper and lower portions of the vertical frame 4 and the free end 3 side of the open / close door 2 of the horizontal frame 5 with fixing members 8 on the basis of the position of the lever handle 7.

(2) Obstacle FIG. 2 is a front view of the obstacle 11 separated from the locking bar 9 of the mounting base plate 6 (base body B). As shown in FIGS. 4 to 6, the obstacle 11 of the present embodiment includes a bottom plate 12, a middle plate 13 that is overlaid on the top surface of the bottom plate 12, and a top plate 14 that is overlaid on the top surface of the middle plate 13, In the annular cover 15 fitted so as to cover the outer surface of each plate 12.13.14 integrally coupled via the fixing means 18, and in the left and right guide portions (long hole openings) of the intermediate plate 13. The left and right clamping type locking pieces 17.17 are incorporated and engaged with the engaging head 9a of the locking rod 9 using the spring force of the left and right interior springs 16.16. The obstruction body 11 is preferably formed in a circular or square annular disk with an outer peripheral surface, and has a size that can be clamped on a palm.

  The bottom plate 12, the middle plate 13, and the upper plate 14 are wrapped in an annular cover 15 after being combined (coupled) in a stacked state. Therefore, it is formed in substantially the same shape and has the same size (diameter). In this embodiment, each of the plates 12.13.14 is formed in a disk shape such as a medal or a coin, and the size is about the same as a coin inserted into the gaming machine. Further, through the bottom end of the bottom plate 12, the middle plate 13 and the upper plate 14, through holes 20 (with the same reference numerals for the sake of convenience) 20 into which a plurality of caulking connecting pins 18 as an example of fixing means are fitted are provided on the left and right They are spaced apart.

  The middle plate 13 is sandwiched between the bottom plate 12 and the upper plate 14. A biasing spring 16 and a pair of left and right sandwiching lock pieces 17.17 which are biased by the biasing spring 16 so as to always come into contact with the stopper portion are incorporated in the opening 22 of the intermediate plate 13.

  As shown in FIG. 7, reference numeral 21 denotes a horizontally or vertically long bottom plate opening formed at the center of the bottom plate 12. The center opening 21a of the bottom plate opening 21 is fitted with the engaging head 9b of the locking rod 9. Left and right or top and bottom end openings 21b. It has a larger diameter (for example, an arc shape) than 21b. Further, the center opening 21a of the bottom plate opening 21 and the left and right or upper and lower end openings 21b. Reference numeral 21b denotes one continuous long hole, and the size of the long hole (the inner diameter in the length direction) is such that the pair of engaging claw pieces 32.32 of the pressing key 31 shown in FIG. Is set to Therefore, the bottom plate opening 21 is a fitting portion into which the engaging head 9b of the locking rod 9 and the pair of engaging claw pieces 32.32 of the pressing key 31 can be respectively inserted.

  Next, reference numeral 22 denotes an intermediate plate opening formed up to a central portion or a portion near the peripheral end of the intermediate plate 13, and the intermediate plate opening 22 includes the pair of left and right internal springs 16.16 described above and the interiors thereof. A pair of left and right sandwiching lock pieces 17.17 that are always urged in the engaging direction are incorporated in the spring 16.16.

  For this purpose, a pair of protruding stopper portions 23.23 are provided with reference to the central opening 22a communicating with the central opening 21a of the bottom plate opening 21, and each of the portions in the direction intersecting with these stopper portions 23.23 is provided. A notch-shaped spring storage portion 24.24 is formed. Here, for convenience of explanation, the term “left and right” is used with reference to the upper and lower stopper portions 23.23 of the intermediate plate 13 shown in FIG.

  With reference to the upper and lower stopper portions 23.23 located in the center on the paper surface, the left and right oblong openings 22b, which communicate with the center opening 22a and the left and right spring storage portions 24.24, respectively. In 22b (the phantom line portion in FIG. 7), the left and right clamping lock pieces 17.17 are accommodated with a margin. Here, “with a margin” means that the left and right clamping lock pieces 17.17 can be retracted by a required amount in the radially outward direction against the spring force of the respective internal springs 16.16. Therefore, the left and right elongated holes 22b. Reference numeral 22b denotes a guide portion for the clamping lock piece 17. The bottom plate 12 and the middle plate 13 may be integrally formed in advance.

  Next, reference numeral 25 denotes an upper plate opening formed in a rectangular shape at the center of the upper plate 14, and this upper plate opening 25 is also a pair of engaging claws of the engaging head 9 b of the locking rod 9 and the pressing key 31. Since each of the pieces 32.32 is a fitting portion that can be fitted, it is set to a required size. Note that the shape of the upper plate opening 25 is not necessarily rectangular, and may be circular.

  As shown in FIG. 2, from the upper plate opening 25, a pair of clamping lock pieces that are urged by the spring force of the respective interior springs 16.16 and are received by the pair of stopper portions 23.23. The opposite end side of 17.17 can be seen. Therefore, the opposed end side of the sandwiching lock piece 17.17 has advanced to a predetermined position toward the center of the upper plate opening 25.

  Next, the annular cover 15 is formed of a hard synthetic resin material in a cap shape, and is connected to the annular portion 15a of the upper wall having a relatively large center hole 19 and the annular portion 15a. 13 and a peripheral wall portion 15b that completely encloses the outer peripheral wall of the upper plate 14.

  Next, as shown in FIG. 6, the sandwiching lock piece 17.17 is a symmetrical long plate or long plate piece. The opposed central portions of these lock pieces 17.17 have arc-shaped cutout portions 26.26 corresponding to the outer peripheral shape (for example, circular shape) of the engaging head 9b of the locking rod 9. Further, since the engaging head 9b of the locking bar 9 of this embodiment is formed in a flat flange shape, the notch end surface of each notch portion 26.26 can be in sliding contact with the engaging head 9b. It is formed in the inclined part (sliding contact surface 27.27) so that it can do. Of course, the slidable contact relationship is possible by forming the engaging head 9b in an umbrella shape.

(3) Press key FIGS. 6 and 8 show an example of the press key 31. The pressing key 31 is formed by the upper and lower key insertion openings 29 formed at the opposite end surfaces of the left and right lock pieces 17.17 when the obstacle body 11 which is combined with the base body B through the locking rod 9 in the locked state is removed. . And a pair of engaging claw pieces 32.32 that evenly push the left and right lock pieces 17.17 against the spring force of the internal spring 16.16.

  8 is a perspective view in which the pressing key 31 is turned upside down. As is clear from this perspective view, each of the insertion tip portions is formed in a mountain shape like a shogi piece. The pair of engaging claw pieces 32.32 are formed in a U-shaped cross section and are welded to the center of the inner wall surface of the circular pressing wall 33. The pressing wall 33 is provided with a knob portion 34 extending radially outward. In addition, the shape of the pressing wall 33 and the knob | pick part 34 of the pressing key 31 is an example, For example, you may change the design of the pressing wall 33 to hook shape.

(4) Action: Locking and unlocking When the present invention is used as the locking device X, first, as shown in FIG. 1, an obstacle is placed on a part of the wall of the object to be locked (for example, the door 2). The base end portion of the locking rod 9 is fixed to the base body B (for example, the mounting base plate 6) so that a part of 11 is in contact. As described above, when the base end portion of the locking bar 9 is fixed to the mounting base plate 6 in advance, the mounting base plate 6 is fixed at a required position of the door frame.

  Next, when the obstacle body 11 is attached to the locking rod 9 in a locked state, as shown in FIG. 21a is fitted. When the center opening 21a of the bottom plate 12 is fitted into the engaging head 9a, the left and right clamping lock pieces 17.17 have advanced to the center of the upper plate opening 25. The inclined portion (sliding contact surface 27.27) of the notch end surface of each notch portion 26.26 is brought into contact with the end portion so as to straddle. Therefore, the outer wall surface of the pressing wall 33 of the pressing key 31 is pushed in, for example, with a thumb. Then, the left and right clamping lock pieces 17.17 retreat against the spring force of the internal spring 16.16 as the inclined portion (sliding contact surface 27.27) slides on the engagement head 9b. . Then, at the moment when the engaging head 9b protrudes into the upper plate opening 25, the left and right clamping lock pieces 17.17 return to their original positions by the spring force of the left and right interior springs 16.16, The notch end face of the notch portion 26.26 is in pressure contact with the neck portion of the locking rod 9. This is the locked state (the obstacle 11 is locked to the engaging head 9b).

Therefore, even if the obstacle body 11 is to be removed from the base body B, the obstacle body 11 is locked to the engagement head 9b via the left and right clamping lock pieces 17.17, so that the locked state is eliminated. It cannot be easily removed unless there is a key to be used.
When the obstacle body 11 is combined with the base body B in the locked state via the locking bar 9, the obstacle body 11 is rotatable about the locking bar 9, and its peripheral end portion is a door. It protrudes so that it can contact the wall surface of 1.

  On the other hand, when removing the obstacle 11 from the locking rod 9 of the base body B, the pressing key 31 is used. FIG. 11 shows the case of unlocking. When unlocking, first, as shown in FIG. 11, the pressing wall 33 of the pressing key 31 is grasped with a finger, and the pair of opposing engaging claw pieces 32.32 are directed to the upper and lower key insertion openings 29.29. Like that. After that, the pressing wall 33 is pushed toward the obstacle 11. Then, since the tip end portion of each engaging claw piece 32.32 of the pressing key 31 is formed in a mountain shape, each engaging claw piece 32.32 is pushed in as the pressing key 31 is pushed into the obstacle body 11. The tip portion of the lens enters so as to push away the right and left pinching lock pieces 17.17.

  At this time, both end portions of the lock piece 17.17 are pressed against the respective engagement claw pieces 32.32 by the spring force. This is the unlocked state. Therefore, the obstacle 11 is picked and removed from the locking rod 9 as it is.

  The locking device X of the first embodiment is an example in which the door 2 at the entrance / exit of the real estate is locked using a means other than a general lock.

  As described above, the present invention may be directed to the movable door (for example, a locker) door 2. It can also be used as a lock X for theft prevention of bicycles and motorcycles. For example, an attachment base plate having one or a plurality of locking rods may be attached to a bicycle fork via fixing means, and the obstacle 11 may be fitted into the locking rod so as to hinder the rotation of the wheels. Further, in the locking device X of the first embodiment, it has been described that the number of the locking bars 9 is one, but of course, a plurality of the locking bars 9 are provided separately on one side surface of the base body B. The obstruction body 11.11 may be combined with the locking rod 9.9 in a locked state by pressing.

  In this section, in addition to the uses shown in the embodiments of the invention, some of the uses recognized by the inventor will be described.

  (A) The locking device X of Application Example 2 is an example when used as a connecting device for a flat plate. Here, “flat plate” means an opening / closing lid for bags, a connecting plate for fences, a regulation band for indoor / outdoor entrances, a regulation band for beds, a flap-type fastening belt for helmets for protecting the head, human Or a connecting plate for regulation that restrains the freedom of animals or a belt, such as a flat and wide. The material of the flat plate is not limited as long as it is flat and wide, such as a metal plate, a synthetic resin plate, a wooden plate, and a leather belt.

  FIGS. 12 and 13 show an example in which long plate-like flat bodies 42 for the fence 41 are connected by a lock X. FIG. The fence 41 is generally composed of left and right support columns 43.43 that are spaced apart from each other by a required distance, and a plurality of long plate-like flat plates 42 stretched over the support columns 43.43. A plurality of locking rods 9 are fixedly arranged with a predetermined interval in the vertical direction.

  Therefore, each support | pillar 43.43 corresponds to the base body B demonstrated in 1st Example. Therefore, each long plate-like flat plate 42 is fixedly connected to the base body B (left and right columns 43.43) via a plurality of obstacles 11 that are engaged with and disengaged from the respective locking rods 9. Has been.

  Thus, the connecting end portions 42a. 42a are formed with through holes 44.44, and the connecting end portions 42a. 42a is a set of obstacles 11 on the left and right sides that are coupled to each locking rod 9 in a locked state through the linkage (engagement) between the through hole 44.44 and the locking rod 9 of the base body B. .11. Accordingly, as shown in FIG. 13, the connecting end 42 a of the flat plate 42 is sandwiched between one side surface of the support 43 and the obstacle 11.

  (B) The locking device X2 of the application example 3 is another example of the case where it is similarly used as a connecting member for a flat body. 14 and 15 show an example in which the left and right flap-like tightening portions 51.52 of the head protecting helmets 51 are connected by the locking device X. FIG.

  Thus, the attachment base plate 6 having the locking rod 9 is attached to one of the flap-shaped fastening portions 51, and the locking rod 9 has a fitting hole 53 formed at the end of the fastening portion 51. It penetrates. On the other hand, a through-hole 54 through which the engaging head 9b of the locking rod 9 passes is formed at the end of the other flap-shaped tightening portion 52.

  Therefore, one flap-like tightening portion side having the locking bar 9 corresponds to the base body B (6.51), and the obstacle body 11 locked to the base body B and the locking bar 9 in a locked state. The other flap-shaped tightening portion 52 sandwiched in a sandwich shape corresponds to a flat plate.

  As is clear from this embodiment, for example, when one or a plurality of locking bars 9 are fixed to the front wall of the bag body having the storage portion, the front wall of the storage portion becomes the base body B. On the other hand, when the through-hole through which the locking bar 9 penetrates is formed in the flap-like opening / closing lid of the bag body, the opening / closing lid corresponds to a flat plate. Thus, the locking device of the present invention can be widely used as a connecting device or a fixing device for a flat plate.

  Next, a second embodiment and a third embodiment of the present invention will be described with reference to FIGS. The same parts as those in the embodiments are denoted by the same or similar reference numerals, and redundant description is omitted. As described in the first embodiment, in the present invention, the pressing key 31 having the pair of engaging claw pieces 32.32 is a constituent element, and the pressing key 31 is opposed to the pair of locking pieces 17.17. Are inserted into the key insertion opening 29.29 in a pressing manner, and the left and right (a pair of) locking pieces 17.17 are evenly pushed against the spring force of the internal spring 16.16.

  In the second embodiment shown in FIGS. 16 and 17, the spring force of the internal spring 16.16 is replaced with the repulsive force of the magnetic material. For example, instead of losing the middle plate (the lower plate when the bottom plate and the middle plate are one plate) 13A in the spring housing portion communicating with the middle plate opening 22A, a total of four magnets 16A are opened apart. A pair of locking pieces 17A. A total of four magnets 16 </ b> B that repel corresponding to the polarity of the magnets 16 </ b> A are implanted at both ends on the outside of 17 </ b> A. Of course, this second embodiment has a pair of lock pieces 17A. 17A repels corresponding to the magnetic material at the opening edge of the middle plate 13A, and it is only necessary to always be received by the left and right or upper and lower stopper portions 23.23, so both 13A, 17A. In addition to the embodiment in which the magnets 16A and 16B are provided on the member 17A, one of them may be a magnet, while the other may be formed of a magnetic material.

  On the other hand, the third embodiment shown in FIGS. 18 and 19 omits the spring force of the internal spring 16.16 and utilizes the attractive force of the magnetic material. In the third embodiment, a pair of locks as a magnetic body corresponding to the polarity of the locking bar 9A as a magnetic body, provided that the locking bar 9A itself is made of iron or is a magnetic body. Piece 17B. 17B is guided by the intermediate plate 13B so as to be locked to the locking rod 9A, and adsorbs by sliding. Therefore, the lock piece 17B. 17B is a carburized and quenched magnetic body. In this embodiment, the locking pieces 17B. 17B is configured to be attracted (locked to the nonmagnetic or magnetic locking rod 9A) corresponding to the polarity of the magnetic material.

  As described above, depending on the embodiment of the present invention, the pair of internal springs is not an essential requirement. Further, the position and action of the internal spring of the first embodiment (attaching both ends to the pair of lock pieces 17.17 and acting in the pulling direction) can be arbitrarily changed unless changed to the essence of the invention. Is possible.

  The present invention is widely used mainly in industries such as joinery, furniture, fences, helmets, and antitheft devices.

FIG. 1 to FIG. 11 are explanatory views showing the best embodiments of the present invention. FIGS. 12 and 13 are explanatory diagrams showing Application Example 2 of the present invention, and FIGS. 14 and 15 are explanatory diagrams showing Application Example 3 of the present invention. 16 to 19 are explanatory views showing other best embodiments of the present invention.
Explanatory drawing which shows an example used as a locking tool for crime prevention. The front view which isolate | separated the obstruction from the latching rod of the attachment base board (base body). Explanatory drawing of the latching rod of a base body. FIG. 4 is a cross-sectional view taken along line 4-4 of FIG. FIG. 5 is a sectional view taken along line 5-5 of FIG. Disassembled perspective view of obstacle (including pressing keys) Explanatory drawing from the front view of each board which comprises an obstruction (a state disassembled and arranged). The perspective view which turned the pressing key upside down. FIG. 9 is a cross-sectional view taken along line 9-9 in FIG. 8. Schematic explanatory drawing when locking the obstacle to the locking rod (when locked). Schematic explanatory drawing which pushed the pressing key against the obstacle and unlocked it with the engaging claw piece (at the time of unlocking). Explanatory drawing which shows an example utilized as a connection tool for flat bodies. Schematic cross-sectional explanatory drawing at the time of locking. Explanatory drawing which shows the other example utilized as a connection tool for flat bodies. Schematic cross-sectional explanatory drawing at the time of locking. Explanatory drawing of the principal part (separating a middle plate and a lock piece) of 2nd Example of this invention. Explanatory drawing of the principal part (state which incorporated the lock piece in the intermediate plate) of 2nd Example of this invention. Explanatory drawing of the principal part (state which incorporated the lock piece in the intermediate plate) of 3rd Example of this invention. Explanatory drawing which showed only the principal part of FIG. 18 with the schematic cross section.

Explanation of symbols

X: Locking device, B: Base body (4.5.6.4.531), 1 ... Building, 2 ... Opening / closing door, 3 ... Free end, 4 ... Vertical frame, 5 ... Horizontal frame, 6 ... Installation Base plate, 7 ... lever handle, 8 ... fixing tool, 9.9A ... locking bar, 9b ... engaging head, 10 ... circumferential groove, 11 ... obstacle, 12 ... bottom plate, 13.13A. 13B ... middle plate, 14 ... upper plate, 15 ... annular cover, 16 ... interior spring, 16A. 16B: Magnetic material, 17.17A. 17B ... clamping type lock piece, 18 ... fixing means, 19 ... large central hole, 21 ... bottom plate opening, 22.22A. 22B ... Middle plate opening, 23 ... Stopper portion, 24 ... Spring storage portion, 25 ... Upper plate opening, 26 ... Notch portion, 27 ... Inclined portion (sliding contact surface), 29 ... Key insertion opening, 31 ... Press key, 32 ... engaging claw piece, 33 ... pressing wall, 41 ... fence, 42 ... flat plate, 42a ... connection end, 43 ... support, 51 ... helmets, 51 ... one fastening part, 52 ... other fastening part, 44, 54 ... through holes.

Claims (5)

A base body having a locking bar, pressed against the base body and engaged with the engaging head of the locking bar using the spring force of a pair of left and right interior springs, respectively . When inserting a pressing-type obstacle having a pair of left and right clamping lock pieces and the obstacle combined with the base body in a locked state via a locking rod, for inserting a key on the opposite end face of the clamping lock piece opening the plugged by pressing method, and consists of a pressing key having a pair of engaging claws widening uniformly press radially outwardly against the 該挟lifting type lock piece the spring force of the interior spring,
The obstruction body of the pressing method has an outer peripheral surface formed in a circular or square annular disc, and the clamping type lock piece in the middle plate opening in the annular cover constituting the obstruction member of the pressing method. Are separately assembled in an opposing state, and the internal spring constantly urges these clamping lock pieces in the radial inward direction to engage the locking rods, and further obstructs the pressing method. A locking device characterized in that a body is rotatably locked to the locking rod . The lock according to claim 1, wherein a plurality of locking bars are fixed to one side surface of the base body so as to be separated from each other, and obstacles are locked to the locking bars in a locked state. Stopper. A base body having a locking bar, and left and right clamping types that are pressed against the base body and engage with the engaging head of the locking bar using the repulsive force of the magnetic body an annular failure of pressing system equipped with a magnetic lock piece, when removing the ring failure body coalesced locked via the locking bar to the base member, pressing the key insertion opening of the opposite end faces of the magnetic lock piece A locking device comprising a pressing key inserted in a manner and having a pair of engaging claw pieces that evenly push the left and right lock pieces against the repulsive force of the magnetic body. A base body having a locking bar, and left and right clamping types that are pressed against the base body and engage with the engaging head of the locking bar using the attraction force of the magnetic body an annular failure of pressing system equipped with a magnetic lock piece, when removing the ring failure body coalesced locked via the locking bar to the base member, pressing method in the key insertion opening of the opposing end surface of the locking piece And a pressing key having a pair of engaging claw pieces that are pushed in and evenly push the left and right lock pieces against the attracting force of the magnetic body. 5. The locking device according to claim 4 , wherein the locking bar is a magnetic body.

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