JP2011217804A - Book theft prevention appliance - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent fraudulent action by improving a theft prevention appliance to be attached to a book along the head, the foot, and the back of the book thereby preventing a locking sleeve going along the head from being lifted fraudulently.SOLUTION: A near-spine foot inserting piece 23 is provided at a lower end of a back frame 21 going along the spine a of the book A, a locking stick 26 is coupled through a hinge 25 to a hinge base part 24 bent along the head c at an upper end part of the back frame 21, and a theft prevention tag 36 is attached to the locking stick 26. When a locking sleeve 28 is engaged down with the hinge base part 24, the locking sleeve 28 is locked to the locking stick 26. A near-head fore-edge inserting piece 32 inserted to break a unsealing prevention wrapping at a part close to the head c of the fore-edge d of the book A is provided at the front end of the locking sleeve 28.

Description

  The present invention relates to a device for preventing book theft (so-called shoplifting) that occurs in stores such as bookstores, convenience stores, comic book rental stores and the like.

  There is a known crime prevention system that prevents theft by attaching an anti-theft tag to a book at a bookstore, etc., and when the book passes through the detection gate with the customer while the tag is attached. It has been. As a method of attaching the tag to the book, there is known a method in which the tag cannot be removed from the book unless it is unlocked by attaching the tag to the inside of the anti-theft instrument and attaching the instrument to the book and locking it. (Patent Document 1).

  When a book with the instrument mounted thereon passes through the detection gate, the tag attached to the instrument is electronically detected, so that the intended purpose can be achieved. However, there is a problem in that when the apparatus is mounted on a book, the instrument main body overlaps the cover or back cover of the book, so that the thickness of the book increases and the display space of the book decreases.

  As an instrument for solving this problem, the applicant of the present application has previously filed a patent application for a frame-shaped book anti-theft instrument that can be attached to the book along the three sides of the book's spine, top, and ground (special feature). Application No. 2010-12008).

  An embodiment of this patent application is shown in FIGS. This book anti-theft device has a back frame 1 along the outer surface of the back a of the book A, and a short arm 2 bent along the ground b of the book A is provided at the lower end of the back frame 1. The arm 2 is provided with an upward thin back-side ground insertion piece 3 which is inserted between the pages of the portion of the ground b close to the back a.

  A hinge base 4 bent along the top c of the book A is provided at the upper end of the back frame 1, and a locking stick 6 is connected to the hinge base 4 via a hinge 5. A locking sleeve 7 is slidably fitted from the front end (free end) side of the locking stick 6 to the hinge base 4. On the lower surface of the locking sleeve 7, a thin downward-facing top insertion piece 8 is provided to be inserted between the pages of the portion of the top c close to the back a.

  The locking stick 6 is provided with a locking mechanism 9 (see FIG. 16) for the locking sleeve 7. The antitheft tag 10 is affixed to a part of the locking stick 6.

  The locking stick 6 is a portion in a direction in which the locking sleeve 7 is partially pulled out forward from the hinge 5 (see the solid line state in FIG. 15) in a direction approaching or moving away from the top c around the hinge 5. Can be rotated.

  When the locking sleeve 7 is pushed deeply into the hinge base 4 by being pushed along the top c and over the hinge 5 to the hinge base 4 from the temporarily fixed state, the two engaging claws 11 of the lock mechanism 9 are two. It is engaged with the engagement hole 12 at a location. As a result, the locking sleeve 7 is locked to the locking stick 6 (see FIG. 16).

  The locking prevents the locking sleeve 7 from coming out, and the locking sleeve 7 and the locking stick 6 inside thereof cannot be rotated around the hinge 5 but are held in a posture along the top c. Further, the back ground insertion piece 3 and the back sky insertion piece 8 are inserted between the pages of the ground b and the top c at portions close to the back a, respectively.

  In the locked state, the anti-theft tag 10 cannot be touched from the outside of the instrument, and the instrument can be placed in any direction of the back a, the ground b, the top c, and the fore edge d of the book A, and the book A. It is also restrained in the direction perpendicular to both the front and back surfaces of the glass, and does not come off easily.

  In order to remove this instrument from the book A, an unlocking instrument 14 containing a magnet 13 at hand of the administrator is applied to the upper surface of the locking sleeve 7, and a suction force is applied to the screws 15 provided in each engaging claw 11. Therefore, it is necessary to unlock the lock mechanism 9.

JP 2008-104837 A

  The anti-theft device according to the patent application has an advantage that it does not affect the thickness of the book because there is no portion overlapping the front or back cover of the book. However, in the normal case, since the instrument is formed of a plastic molded product, the locking sleeve 7 is freed due to the elasticity of the material itself, the fitting clearance between the locking sleeve 7 and the hinge base 4, and the like. If an improper force acts on the end (front end) strongly upward (see the white arrow in FIG. 16), the locking sleeve 7 may be lifted from the top c together with the internal locking stick 6.

  When the locking sleeve 7 is lifted, the hinge base 4 may be broken, or the top insertion piece 8 may be pulled out from the top c of the book A.

  Therefore, the present invention provides a book anti-theft device that can cope with fraud by improving the anti-theft device and preventing the locking sleeve 7 from being easily lifted from the top c of the book A. The task is to do.

  In order to solve the above-mentioned problems, a first invention according to this application (the invention according to claim 1) includes a back frame along the outer surface of the back of the book, and the bottom of the back frame along the ground of the book. A bent arm, a ground insertion piece provided on the arm, a hinge base provided to be bent along the top of the book at the upper end of the back frame, and a hinge base connected to the hinge base. The locking stick, the locking sleeve slidably fitted from the front end side of the locking stick to the hinge base, the insertion piece for the book provided on the locking sleeve, and the locking sleeve provided on the locking stick A locking mechanism is provided, and the locking mechanism acts to lock the locking sleeve when the locking sleeve is pushed from the front end side of the locking stick to the hinge base. In the book anti-theft device, the insertion piece with respect to the book provided on the locking sleeve is inserted into the back of the top of the book and into the top of the forehead. The present invention is applied to a book which is composed of a top-to-bottom small-sized piece to be inserted and in which a portion including a top / bottom corner portion composed of a top and a small edge of the book is provided with an opening prevention wrapping.

  In the book anti-theft device having the above-described configuration, the back frame is placed along the outer side surface of the back of the book, and the back ground insertion piece is inserted between the pages of the book. Further, the locking sleeve is rotated so as to be along the top while being held in a temporarily fixed state that does not reach the hinge, and the back-facing top insertion piece is inserted between the top pages. When the locking sleeve is further pushed down to the hinge base, the locking sleeve is locked to the locking stick.

  In addition, as described above, when the locking sleeve is pushed to the hinge base, the top-faced small edge insertion piece provided on the locking sleeve breaks through the opening prevention packaging of the top / small corner section and is inserted between the small pages. .

  If an improper external force is applied to the front end of the locking sleeve in the locked state, the top side of the small sleeve insert will be inserted between the small pages. By being engaged with a part, the escape to the top side is prevented. Thereby, lifting of the locking sleeve front end is prevented.

  In order to solve the above-mentioned problem, the second invention according to this application (the invention according to claim 5) is provided with a fore edge frame along the outer side surface of the forehead in the first invention, At the lower end of the fore edge frame, there is provided a fore edge insertion piece that is inserted into a portion near the fore edge on the ground side of the earth / edge edge portion constituted by the ground of the book and the fore edge, and the upper end portion of the fore edge frame In addition to the structure provided with a slit through which the top edge of the locking sleeve is inserted, and as a form of anti-opening packaging, it is prevented from opening in the part including the ground and the small edge corner composed of the ground and the small edge of the book It is intended to be limited to those that have been packaged.

  According to the second aspect of the present invention, the small edge side insertion piece provided at the lower end portion of the small edge frame is prevented from coming out to the small edge side by the packaging of the ground / small edge corner part, and the ceiling side small edge insertion piece is It is prevented that the top edge of the small edge insertion piece engages with the slit of the small edge frame.

  Moreover, in order to solve the said subject, the 3rd invention based on this application (invention based on Claim 6) does not have the limitation applied to the book which gave anti-opening packaging.

  That is, a back frame along the outer surface of the back of the book, an arm bent along the background of the book at the lower end of the back frame, and a back-placed piece inserted into a portion of the arm that is close to the back A hinge base bent at the upper end of the back frame along the top of the book, a locking stick connected to the hinge base via a hinge, and slides from the front end side of the locking stick to the hinge base A locking sleeve fitted to the locking sleeve, an insertion piece for the book provided on the locking sleeve, and a locking mechanism for the locking sleeve provided on the locking stick, and the locking sleeve is provided on the front end side of the locking stick. In the book anti-theft device, the locking mechanism is actuated so that the locking sleeve is locked when the locking mechanism is pushed into the hinge base. The above-mentioned insertion piece for the book provided in the reeve is a backside insertion piece inserted into the portion of the book that is close to the top of the book, and a top-side insertion piece that is inserted into the portion of the book that is close to the top of the forehead A fore edge frame is provided along the outer surface of the fore edge, and a lower edge of the fore edge frame is provided at the lower end of the fore edge frame, and a fore edge-inserted piece inserted into the portion near the fore edge of the book is provided. A slit through which the top edge of the locking sleeve is inserted is provided at the upper end, a ground frame is provided along the ground of the book, and a back side slit provided at the back side end of the ground frame is provided. The back side ground insertion piece at the lower end of the back frame is inserted from the lower surface, and the lower side ground insertion piece at the lower end of the small frame is provided from the lower surface of the small edge side slit provided at the small edge side end of the ground frame. The configuration is inserted.

  In this case, since the lower end of the back frame and the lower end of the fore edge frame are connected by the ground frame, if an improper external force is applied to the front end of the locking sleeve in the locked state, Is received by the ground frame via the fore edge frame. For this reason, it can be used also about the book in which the opening prevention packaging is not given.

  As described above, the present invention intends to lift the locking sleeve by providing the locking sleeve along the top of the book with the top end plugging piece that is inserted into the top of the book. Opposite the unauthorized external force, the top edge of the small edge insertion piece engages with the anti-opening packaging that covers the top and edge corners. This prevents the locking sleeve from being lifted, and can deal with fraudulent acts such as destroying the book anti-theft device or unlocking the lock.

  In addition, by applying reinforcing means such as interposing a reinforcing sheet on the inner surface of the anti-opening packaging covering the part including the top / small corner parts, or applying a reinforcing tape to the outer surface of the anti-opening packaging, Engagement force increases and the said function can be exhibited more effectively.

  As a packaging form, we take anti-opening packaging to cover the part including the ground / small edge corner part, and prevent the slip-off of the small edge side insert piece from the small edge frame by the packaging, and the locking sleeve in the slit provided at the upper end of the small edge frame By adopting a configuration in which the top edge of the small edge insertion piece is inserted, it is possible to firmly oppose the unauthorized external force to lift the locking sleeve.

  Further, when a configuration is adopted in which the lower end portion of the back frame and the lower end portion of the fore edge frame are connected by a ground frame, the front end portion of the locking sleeve is attached even in the case of a book that has not been subjected to unsealing packaging. Can be opposed to lifting force.

These are the front views in the mounting state of the antitheft instrument of Embodiment 1. FIG. FIG. 3 is an exploded perspective view of the above. These are the front views in the middle of mounting | wearing same as the above. (A) is a fragmentary sectional view in the locked state same as the above, (b) is a partially expanded sectional view of (a). Fig. 3 is a bottom view of the locking stick of the above. (A) is a longitudinal front view of the locking sleeve, (b) is a bottom view of the locking sleeve, (c) is a partially enlarged sectional view of the locking sleeve, and (d) is a dd of (c). It is sectional drawing of a line. These are sectional drawings which show a part of temporary attachment state same as the above. (A) is a front view which shows the packaging form of a book, (b) is sectional drawing of the insertion part with respect to a book, (c) is sectional drawing of the other insertion part. (A) is a partial perspective view showing the same reinforcing structure, (b) is a partial perspective view showing another reinforcing structure, (c) is an enlarged sectional view of (b), and (d). Is a partial perspective view showing another reinforcing structure, and (e) is an enlarged sectional view of (d). (A), (b) is a front view showing various examples of the packaging form, (c) is a perspective view showing another example of the packaging form, and (d) is one of the modified examples of the (c). FIG. (A) is a partial cross section figure of the mounting state of Embodiment 2, (b) is a perspective view of a fore edge frame. These are the longitudinal cross-sectional front views in the middle of mounting | wearing of Embodiment 3. FIG. FIG. 3 is a perspective view of the locking sleeve same as above. These are the front views in the mounting state same as the above. These are sectional drawings in the middle of wearing of a preceding example. These are the partial cross sections in the locked state same as the above.

Embodiments of the present invention will be described below with reference to the accompanying drawings.
[Embodiment 1]
As shown in FIGS. 1 to 3, the antitheft device of Embodiment 1 has a back frame 21 along the outer surface of the spine a of the book A, and the base b of the book A at the lower end of the back frame 21. A short arm 22 bent along is provided. The arm 22 is provided with a thin back-side ground insertion piece 23 that can be inserted between pages of the ground b.

  A hinge base 24 bent at a right angle along the top c of the book A is provided at the upper end of the back frame 21, and a locking stick 26 is connected to the hinge base 24 via a hinge 25. In order to reinforce the hinge base 24, a reinforcing structure in which a reinforcing rib 27 is provided at the upper end of the back frame 21 continuous thereto is provided. The locking stick 26 has a stick shape with a square cross section.

  A locking sleeve 28 is slidably fitted from the front end side of the locking stick 26 to the hinge base 24. The locking sleeve 28 is formed in a quadrangular cylindrical shape so as to be slidably fitted to the outside of the four surfaces of the locking stick 26. The front end of the locking sleeve 28 is open, but is narrowed by an inward opening edge 30 (see FIG. 2).

  Further, a notch 29 is provided on the lower surface of the rear end portion of the locking sleeve 28. When the locking sleeve 28 is pushed in most deeply, that is, when the locking sleeve 26 is most deeply fitted, the notch 29 fits to the upper end portion of the back frame 21 (see FIG. 1).

  As described above, the locking sleeve 28 is fitted to the locking stick 26 most deeply, and the front end thereof substantially coincides with the front end of the top c of the book A, and the rear end thereof is the rear end of the hinge base 24. Reach. As a result, the entire locking stick 26 is hidden inside the locking sleeve 28.

  A short arm 31 bent at a right angle so as to follow the fore edge d is provided at the front end portion of the locking sleeve 28, and an inward ceiling side fore mouth plug 32 is provided on the inner surface of the arm 31. The top edge insert piece 32 is provided at a position close to the top c of the edge d, and is thinly formed so as to be inserted between pages of that portion.

  Further, on the lower surface of the rear end portion of the locking sleeve 28, a back-facing ceiling insertion piece 33 is provided downward at a position close to the notch 29. The back-facing ceiling insertion piece 33 is formed thin so that it can be inserted between the pages at a portion near the back a of the top c.

  In addition, on the lower surface of the front end portion of the locking sleeve 28, there is a case in which a fore-edge-type insertion piece 33a inserted between the pages is provided in a portion near the fore-edge d of the top c. This small-edge-side insertion piece 33a is not suitable for the back-side insertion piece 33 when a strong and improper external force is applied to the front or back cover side at the corners of the top and bottom of book A. This is effective in preventing the locking sleeve 28 from being removed from the top c without being supported.

  Next, the locking mechanism 34 for the locking sleeve 28 of the locking stick 26 will be described.

  As shown in FIGS. 2, 4, and 5, the lower half of the rear end side of the lower surface of the locking stick 26 is slightly recessed by a step 35 from the front end half. An electronically detectable antitheft tag 36 is affixed to the recessed lower surface.

  Engaging claws 37, 38, and 39 are provided in a range about half of the front end side of the lower surface of the locking stick 26. Among them, the two engaging claws 37 and 39 are provided on the same surface along the lower surface of the locking stick 26 at a constant interval in the length direction of the locking stick 26. On the other hand, the other one engaging claw 38 is provided close to the upper surface of the locking stick 26 at a position parallel to the former engaging claw 37 (see FIG. 5) (FIGS. 4A and 4B). )reference).

  One end of the engaging claw 37 is integrated with the inner surface of the front end wall 41 of the locking stick 26, and the free end of the other end is in the direction of the intermediate wall 42 provided at a predetermined interval behind the front end wall 41. It extends. One end of the other engaging claw 39 is integrated with the inner surface of the intermediate wall 42 (the surface on the antitheft tag 36 side), and the free end of the other end extends to the vicinity of the step 35.

  The engaging claws 37 and 39 are provided with engaging protrusions 43 and 44 that protrude slightly downward from the lower surface of the lower locking stick 26 near the free ends, respectively. The engaging protrusions 43 and 44 are in a positional relationship shifted by a minute distance x in the width direction (see FIG. 5). In addition, magnetic screws 45 and 46 are screwed into the tips of the engaging claws 37 and 39 in contact with the engaging protrusions 43 and 44. The heads of the screws 45 and 46 are directed toward the upper surface of the locking stick 26, but in a normal state, the heads are slightly lower than the upper surface (see FIGS. 4A and 4B).

  One end of the other engaging claw 38 is integrated with the inner surface of the front end wall 41, and the free end at the other end extends longer than the engaging claw 37 and approaches the intermediate wall 42. (See FIG. 5). In the vicinity of the free end portion of the engaging claw 38, an engaging protrusion 47 protruding in the direction of the upper surface of the locking stick 26 is provided in the direction opposite to the above-described engaging protrusions 43 and 44. The engagement protrusion 47 is at the same height as the upper surface of the locking stick 26 in a normal state, and does not protrude any further.

  In addition, a magnetic screw 48 is screwed into the tip of the engaging claw 38 in contact with the engaging protrusion 47. The head of the screw 48 faces the upper surface of the locking stick 26 as with the other screws 45 and 46 described above, but in a normal state, the head is slightly lower than the upper surface (FIG. 4 (a). ) (B)).

  In a state where the locking sleeve 28 is fitted to the locking stick 26 most deeply, the front end portion of the locking stick 26 hits the inner surface of the opening edge 30 at the front end of the locking sleeve 28, and the front end protrusion 40 provided on the front end wall 41 is opened. Mated. Further, a notch 29 is fitted to the back frame 21 at the rear end of the locking sleeve 28, and reaches the rear end of the hinge base 24 beyond the hinge 25.

  On the inner surface of the lower wall of the locking sleeve 28, the engaging recess 51 is located at a position that matches the engaging projections 43, 44 of the engaging claws 37, 39 in the state where the locking sleeve 26 is most deeply fitted. , 52 are provided. Since the engaging protrusions 43 and 44 slightly protrude downward from the lower surface of the locking stick 26 as described above, the engaging protrusions 43 and 44 engage with the engaging recesses 51 and 52, respectively, in the deepest fitted state. Then, the locking sleeve 28 is locked with respect to the locking stick 26.

  As described above, the engagement protrusions 43 and 44 are shifted by the minute distance x in the width direction of the locking stick 26. Accordingly, the engagement recesses 51 and 52 are also locked by the same minute distance x in the width direction. The sleeve 28 is displaced in the width direction (see FIG. 6D).

  Instead of the engaging recesses 51 and 52, these can be locked as two engaging holes. However, in the case of the engagement hole, there is a possibility that the lock is illegally released by inserting a tool or the like from the outside. In order to eliminate such a fear, engagement concave portions 51 and 52 that are not opened to the outside are provided, and the engagement protrusions 43 and 44 are engaged with the concave portions.

  It should be noted that molding holes 51a and 52a necessary for molding the engaging recesses 51 and 52 remain on the opposed upper walls (see FIG. 6A).

  In the locked state, the engaging protrusion 47 of the other engaging claw 38 faces below the engaging hole 50 provided on the upper surface of the locking sleeve 28. Since the engaging protrusion 47 is located at a position lower than the upper surface of the locking stick 26, it does not engage with the engaging hole 50 in a normal state.

  When the locking state is released, the locking sleeve 28 is pulled out from the locking stick 26, and the engaging protrusions 43 and 44 are fitted in an intermediate fitting state where the locking sleeve 28 is pulled out from the hinge 25 as shown in FIG. Engagement holes 53 and 54 are provided on the lower surface of the locking sleeve 28 (see FIGS. 6A to 6D).

  In the intermediate fitting state, the state in which the engaging protrusions 43 and 44 of the locking stick 26 are engaged with the engagement holes 53 and 54 of the locking sleeve 28 is referred to as a temporarily fixed state of the locking sleeve 28.

  As shown in FIG. 6D, the engagement hole 53 is located on the same line as the engagement recess 51, and the other engagement hole 54 is located on the same line as the engagement recess 52. As a result, the engagement holes 53 and 54 are also shifted by a minute distance x in the width direction.

  The engaging protrusions 43 and 44 have slightly tapered edges 55 and 56 on the front end side (see FIG. 4B). Therefore, in the temporarily fixed state, the engagement protrusions 43 and 44 are removed from the engagement holes 53 and 54 by applying a slight force to the locking sleeve 28 and pushing it in the rear end direction (in the direction of the hinge 25). Can do. As a result, the temporary fixing is released, and the locking sleeve 28 moves backward to shift to the locked state.

  On the other hand, since the rising edges of the rear ends of the engaging protrusions 43 and 44 do not have a taper, the unlocking device 57 described below is not used to further pull out the locking sleeve 28 from the temporarily fixed state toward the front end. I can't do it.

  In the unlocking device 57 (see FIG. 4A), the magnets 59 and 60 are embedded in the detection surface at intervals corresponding to the intervals between the screws 45 and 46, and the magnets 59 and 60 are The unlocking positioning groove 57a is provided at a position where it can be engaged with the protrusion 58 projecting from the upper surface of the rear end portion of the locking sleeve 28 in the unlocked state facing 46.

  Further, when the locking sleeve 28 is in the temporarily fixed state (see FIG. 7), it is necessary to align the screws 45, 46 and the magnets 59, 60 in that state in order to release the temporary fixed state. For this reason, the unlocking device 57 is provided with a positioning groove 57b for temporarily releasing at a predetermined position on the inner side (near the magnet 60) than the positioning groove 57a for unlocking.

  The book antitheft device of Embodiment 1 is configured as described above, and the operation thereof will be described next.

  As described above, in the case of the first embodiment, the anti-opening packaging 61 (see FIGS. 8 and 9 and the like hereinafter referred to as FIG. 8 and FIG. 9) is simply referred to as the “packaging 61”. It applies to the thing which gave "." The procedure for attaching the instrument to the book A is as follows. With the locking sleeve 28 held in a temporarily fixed state (see FIG. 3), the back-ground plug 23 at the lower end of the back frame 21 is placed on the back a of the ground b. In the near part, the unsealing preventive packaging 61 of that part is pierced and inserted between the pages, and the arm 22 is placed along the ground b and the back frame 21 along the back a (see FIG. 8A).

  At the same time, the upper end portion of the back frame 21 and the corner portion of the hinge base portion 24 are aligned with the corner portion of the back A and top c of the book A. Thereby, the hinge base 24 is along the top c (see FIG. 3).

  From this state, the locking sleeve 28 is rotated downward, the back-facing heaven insert piece 33 is inserted between the pages through the packaging 61 of the top c, and the locking sleeve 28 is placed along the top c (see the two-dot chain line in FIG. 2). ).

  Further, by pushing the locking sleeve 28 rearward along the top c, that is, toward the hinge base 24 side, the arm 31 at the front end is along the small edge d and the small edge insertion piece 32 is close to the small edge d. And is inserted between the pages of the forehead d (see FIG. 8C). When the locking sleeve 28 is inserted into the locking stick 26 most deeply by the insertion, the engaging projections 43 and 44 of the two engaging claws 37 and 39 of the locking sleeve 28 are engaged with the engaging recesses 51 and 52 and locked. (See FIG. 4A).

  In the locked state, the back frame 21 engages with the back a with respect to the external force acting in a direction perpendicular to the back a, and the back-side ground insertion piece 23 and the back-side sky insertion piece 33. Since the arm 31 extending from the locking sleeve 28 engages with the forehead d, it does not come off the book A. Further, when an upward external force is applied to the back frame 21, the arm 22 at the lower end of the back frame 21 is engaged with the lower end of the back a, and when a downward external force is applied, the hinge base 24 is Since it engages with the upper ends of the top c and the back a, it does not come off the book A in this case.

  Also, for external forces in the direction perpendicular to the front and back cover surfaces of Book A, the backside insert 23, the backside insert 33, and the forehead insert 32 are inserted between the pages. In this case, the book A will not be removed. In this case, as described above, separation from the book A can be more reliably prevented when the small-edge-side heaven insertion piece 33a (see FIG. 1) is provided.

  Further, when an upward external force is applied to the front end portion of the locking sleeve 28 (see the white arrow in FIG. 1), the top side small edge insertion piece 32 is prevented from being pulled upward by the packaging 61 at the top c. Therefore, the locking sleeve 28 is not forcibly lifted (see FIG. 8C).

  To release the locked state, the unlocking device 57 is fixed on a table or the like with the detection surface in which the magnets 59 and 60 are embedded facing upward. The book A equipped with the antitheft device is placed on the detection surface of the unlocking device 57 with the top and bottom reversed, the upper surface of the locking sleeve 28 is applied to the detection surface of the unlocking device 57, and the protrusion 58 protrudes from the upper surface of the rear end portion. Is positioned by engaging the positioning groove 57a when the unlocking device 57 is unlocked (see the two-dot chain line in FIG. 4A).

  In the positioning state, the magnets 59 and 60 of the unlocking device 57 face the screws 45 and 46 of the two engaging claws 37 and 39 of the locking stick 26. When the screws 45 and 46 are attracted to the magnets 59 and 60, the engagement protrusions 45 and 46 come out of the engagement recesses 51 and 52 and the lock is released. When the lock is released, the locking stick 26 can be pulled out toward the rear end of the locking sleeve 28 that is engaged with the positioning groove 57a when the unlocking device 57 is unlocked (FIG. 4A). (See arrow a). At the same time, the back frame 21 and the book A are also moved in the same direction, and the top side small edge insertion piece 32 comes out of the small edge d of the book A. In the middle of the retreat, the engagement protrusions 43 and 44 are engaged with the engagement holes 53 and 54 to be in a temporarily fixed state (see FIG. 7).

  In the temporarily fixed state, the hinge base 24 and the hinge 25 come out of the locking sleeve 28, so that the back frame 21 can be rotated. The book A can be separated from the instrument by the rotation.

  In order to separate the book A from the instrument, it is only necessary to pull out the locking stick 26 to a position where it is temporarily fixed, and it is not necessary to completely pull out the locking stick 26 from the locking sleeve 28. However, when the anti-theft tag 36 is replaced, it is necessary to further pull out the locking stick 26 from the temporarily fixed state and completely separate it from the locking sleeve 28.

  Therefore, the unlocking device 57 is positioned so that the protrusion of the locking sleeve 28 in the temporarily locked state is engaged with the positioning groove 57b during temporary locking and unlocking (see the two-dot chain line in FIG. 7). By this positioning, the screws 45 and 46 are attracted to face the magnets 59 and 60, so that the engagement protrusions 43 and 44 are disengaged from the engagement holes 53 and 54. Thus, the temporarily fixed state is released, and the locking stick 26 can be completely extracted from the locking sleeve 28.

  When sufficient strength cannot be obtained with the packaging 61 alone in order to prevent the top-end small piece insertion piece 32 from being pulled out upward, as shown in FIG. Alternatively, although not shown, it is desirable to apply reinforcing means such as attaching a reinforcing tape 62 to the outer surface of the package 61 at a portion near the top c of the forehead d.

  As another example of the reinforcing means, as shown in FIGS. 9B and 9C, an inverted L-shaped bent portion 77 is formed at one end portion of the reinforcing sheet 76 such as cardboard or plastic before the packaging 61 is applied. The reinforcement sheet 76 is placed along the portion of the top c close to the fore edge d, and the bent portion 77 is inserted between the cover 78 of the book A and the folded piece 79, and then the packaging 61 is applied. It can also be taken. The reinforcing means is applied on the inner side surface of the package 61. The bent portion 77 of the reinforcing sheet 76 may be inserted into a gap on the back cover 80 side of the book A.

  In any case, it is possible to prevent a problem that the reinforcing sheet 76 is displaced in the width direction of the top c and the direction of the fore edge d during packaging. In order to reliably prevent the reinforcing sheet 76 from moving in the back a direction, the reinforcing sheet 76 may be formed in a shape that is long in the length direction of the top c.

  Further, in the example shown in FIGS. 9D and 9E, the three-dimensional reinforcing member 82 is configured by providing the bent portion 77 similar to the above case and providing the fork edge-side bent portion 81 and integrating them. It is. The fore edge bending portion 81 is formed with a width that does not exceed half of the fore edge d so as not to hinder the insertion of the above-mentioned ceiling side fore edge insertion piece 32.

  In this case, it is not necessary to insert the bent portion 77 between the front cover 78 and the folded piece 79 as in the above-described example, and the reinforcing member 82 includes the top c, the fore edge d, and the front cover 78 (or the back cover 80). It is only necessary to cover the corner part which is made, and then the packaging 61 is applied.

  When the locking sleeve 28 is inserted into the locking stick 26 and pushed in until locked, first, the engaging protrusions 43 and 44 of the locking stick 26 pass through the engaging holes 53 and 54 of the locking sleeve 28. In this case, as described above, both the engagement protrusions 43 and 44 and the engagement holes 53 and 54 are shifted by a minute distance x in the width direction, so that the leading engagement protrusion 43 is engaged at two positions. The holes 53 and 54 are not engaged one after another, but are engaged in a one-to-one correspondence and become temporarily fixed.

  When a force in the pushing direction is further applied from the temporarily fixed state, the engagement protrusions 43 and 44 can be lightly disengaged by the taper of the rising edges 55 and 56.

  Next, since the relationship between the engagement protrusions 43 and 44 and the engagement recesses 51 and 52 is also shifted by a minute distance x in the width direction as in the case described above, the leading engagement protrusion 43 has two engagement points. The mating recesses 51 and 52 are not engaged one after another, but are engaged in a one-to-one correspondence and become locked. When in the locked state, the front end wall 41 of the locking stick 26 hits the opening edge 30 of the locking sleeve 28 and cannot be inserted any further. For this reason, the engagement protrusions 43 and 44 are not detached from the engagement recesses 51 and 52, and therefore the locked state is not released.

  A case where one magnet having a size close to the unlocking device 57 is improperly applied to the upper surface of the locking sleeve 28 is considered. The magnet exerts an attractive force on the screws 45, 46, 48 of the three engaging claws 37, 38, 39. In this case, the screws 45 and 46 of the two engaging claws 37 and 39 act in the direction of releasing the lock, but the engaging protrusion 47 of the one engaging claw 38 has the engaging hole 50. Therefore, the lock of the locking sleeve 28 is not illegally released.

  In the above description, the case where the packaging 61 is applied to the entirety of the book A by shrink wrapping has been described. However, the packaging 61 is not limited to this form, and the form shown in FIGS. 10 (a) to 10 (d). There is also. The structure common to these forms including the case of FIG. 8A is a form that covers the top / front corner portion 67 formed by the top c and the front edge d of the book A or the vicinity thereof. is there.

  That is, FIG. 10 (a) is obtained by wrapping a wrapping paper of a transparent film around a spine a, front and back covers, and a fore edge d except for the upper and lower ends including the base b and the top c of the book A. . Both the back-ground insert 23 and the back-top insert 33 are directly inserted between the pages of the ground b and the top c without penetrating the packaging 61. The top edged small piece insertion piece 32 is inserted through the package 61 on the small edge side in the vicinity of the ceiling / small edge corner portion 67. Since the top side small edge insertion piece 32 is engaged with the package 61 existing in the vicinity of the top / small edge corner portion 67, it is prevented from coming out to the top c side.

  In the packaging form shown in FIG. 10 (b), the transparent paper wrapping paper is formed in a vertical strip shape over the ground b, front and back paper, and top c, except for the right and left sides of the book A including the back a and the small edge d of the book A. The wrapping 61 covers the vicinity of the top / edge corner portion 67. Both the back ground plug 23 and the back sky plug 33 penetrate the package 61 and are inserted between the pages of the ground b and the top c, respectively. The top side small edge insertion piece 32 is directly inserted into the small edge side in the vicinity of the top / small edge corner portion 67. The top side small edge insertion piece 32 is engaged with the packaging 61 existing in the vicinity of the top / front edge corner portion 67 and is prevented from coming out to the top c side.

  FIG. 10 (b) shows a case where the packaging 61 is applied in a vertical band shape from the top and bottom paper, but as shown in FIG. 10 (c), the packaging 61 is provided on the main body portion except for the front cover e and the back cover f. In some cases, as in (d), the packaging 61 may be applied to a part of the main body.

  In any case of FIGS. 10A to 10D, the reinforcing means shown in FIG. 9 may be added.

[Embodiment 2]
As shown in FIGS. 11 (a) and 11 (b), the anti-theft device of Embodiment 2 is a combination of the anti-theft device of Embodiment 1 with a fore edge frame 63. It is limited to a form that covers the fore corner portion 68 or its vicinity.

  The fore edge frame 63 in this case has a length that matches the outer surface of the forehead d of the book A and matches the entire length thereof. A short arm 64 that is bent along the ground b is provided at the lower end portion, and a thin fore edge insert 65 that is inserted between the pages of the portion close to the fore edge d of the ground b on the upper surface of the arm 64. Is provided upward.

  Also, a slit 66 that is long in the vertical direction is provided near the upper end of the fore edge frame 63, and the above-mentioned top side fore edge insertion piece 32 is inserted into the slit 66.

  The method of mounting the instrument on the book A is basically the same as that of the first embodiment, but the difference is that in the case of the second embodiment, the difference between the small edge frame 63 and the small edge of the small edge frame 63 is different. The insert piece 65 is inserted between the pages through the package 61 of the base b of the book A, and the fore edge frame 63 is set along the fore edge d.

  Thereafter, when the locking sleeve 28 is pushed backward, the top edge small-mouth insert 32 is inserted into the slit 66 of the small edge frame 63. The positional relationship between the two is determined so that the upper side of the top edge insertion piece 32 contacts or approaches the upper end of the slit 66.

  As in the case of the first embodiment, the top edge insertion piece 32 penetrating the slit 66 penetrates the package 61 and is inserted between the pages of the edge d.

  In the case of the second embodiment, it is prevented by the packaging 61 in the portion of the ground / small edge corner portion 68 close to the small edge d that the small edge-side ground insertion piece 65 of the small edge frame 63 comes out in the small edge d direction. Moreover, it is prevented that the top side small edge insertion piece 32 slips out in the top c direction by engaging the upper side of the top side small edge insertion piece 32 with the upper end of the slit 66 of the small edge frame 63, and The packaging 61 hardly contributes to the withdrawal. For this reason, it is possible to reliably prevent the locking sleeve 28 from being lifted without applying special reinforcing means to the package 61 of the portion.

  However, in order to prevent the edge-inserted ground insertion piece 65 provided at the lower end portion of the edge frame 63 from coming out in the edge d direction, the packaging 61 needs to be present in the vicinity of the edge d of the ground / edge edge portion 68. For this reason, the packaging form in the case of this Embodiment 2 needs to be a form in which the packaging 61 exists at least in the ground / small corner portion 68 and its vicinity.

[Embodiment 3]
Next, the third embodiment shown in FIGS. 12 to 14 is a configuration in which a ground frame 71 is added to the configuration of the second embodiment (see FIGS. 11A and 11B).

  That is, the ground frame 71 is formed by a frame plate along the ground b of the book A. A back slit 72 is provided in the length direction at the end on the back frame 21 side, and a fore edge slit 73 is also provided in the length direction at an end on the small frame 63 side. The former back-side slit 72 is inserted with a back-side ground insertion piece 23 at the lower end of the back frame 21 from the lower surface thereof, and the latter fore-side slit 73 is inserted into the fore-side ground at the lower end of the fore-edge frame 63. The insertion piece 65 is inserted.

  Thereby, the lower end part of the back frame 21 and the fore edge frame 63 is connected by the ground frame 71, and the back frame 21, the ground frame 71, the top frame (locking) along the back a, the ground b, the top c, and the fore edge d of the book A. A square frame-shaped book anti-theft device is configured by the stick 26 and the locking sleeve 28) and the fore edge frame 63 (see FIG. 14).

  A widthwise hinge 74 is formed inside the back slit 72 of the ground frame 71 (position close to the fore edge d), and as shown in FIG. The end portion on the frame 21 side is easily bent. The hinge 74 may be provided on the inner side (position close to the back a) of the fore edge slit 73 and bendable at that portion.

  In this case, the locking sleeve 28 is provided with the above-mentioned small-edge-side insertion piece 33a near the front end of the lower surface thereof. As described above, the small-edge-side heaven insert 33a allows the locking sleeve 28 to be used when the cover sleeve or the top cover is subjected to a strong and improper external force on the cover side or back cover side. The situation where it removes from c is prevented.

  In addition, a gentle taper surface 75 that is lowered toward the front end is provided on the upper surface of the front end portion of the locking sleeve 28. This is to prevent the upper end corner of the locking sleeve 28 from colliding with the shelf board and smoothly store the book with the instrument mounted on the bookshelf.

  The third embodiment is as described above. Since the lower end of the back frame 21 and the lower end of the fore edge frame 63 are connected by the ground frame 71, it is lifted to the front end of the locking sleeve 28 in the locked state. When an unauthorized external force is applied, the force is received by the ground frame 71 through the fore edge frame 63. For this reason, it can be used also about the book which is not packaged.

DESCRIPTION OF SYMBOLS 1 Back frame 2 Arm 3 Ground insertion piece 4 Hinge base part 5 Hinge 6 Locking stick 7 Locking sleeve 8 Top insertion piece 9 Locking mechanism 10 Antitheft tag 11 Engagement claw 12 Engagement hole 13 Magnet 14 Unlocking instrument 15 Screw 21 Back frame 22 Arm 23 Back ground insertion piece 24 Hinge base 25 Hinge 26 Locking stick 27 Reinforcement rib 28 Locking sleeve 29 Notch 30 Open edge 31 Arm 32 Ceiling small edge insertion piece 33 Back leaning insertion piece 33a Small edge Close insertion plug 34 Lock mechanism 35 Step 36 Anti-theft tag 37, 38, 39 Engagement claw 40 Front end protrusion 41 Front end wall 42 Intermediate wall 43, 44 Engagement protrusion 45, 46 Screw 47 Engagement protrusion 48 Screw 50 Engagement Holes 51, 52 Engaging recesses 51a, 52a Molding holes 53, 54 Engaging holes 55, 56 Rising edge 57 Unlocking device 57a Unlocking positioning groove 57b Stop when releasing the positioning groove 58 the projections 59 and 60 magnet 61 opening prevention packaging (packaging)
62 Reinforcement tape 62a Reinforcement sheet 63 Small edge frame 64 Arm 65 Small edge side insertion piece 66 Slit 67 Top / small edge corner 68 Ground / small edge corner 71 Ground frame 72 Back slit 73 Small edge slit 74 Hinge 75 Tapered surface 76 Reinforcement Sheet 77 Bent part 78 Cover 79 Folding piece 80 Back cover 81 Small edge side bent part 82 Reinforcing member

Claims (8)

A back frame along the outer side surface of the back of the book, an arm bent along the ground of the book at the lower end of the back frame, a back ground plug inserted in a portion close to the back of the ground provided in the arm, A hinge base bent at the upper end of the back frame so as to follow the top of the book, a locking stick connected to the hinge base via a hinge, and slidable from the front end side of the locking stick to the hinge base A locking sleeve fitted to the locking sleeve, an insertion piece for the book provided on the locking sleeve, and a locking mechanism for the locking sleeve provided on the locking stick, respectively.
In the book anti-theft device, the locking mechanism is operated and the locking sleeve is locked when the locking sleeve is pushed from the front end side of the locking stick to the hinge base.
The insertion piece for the book provided on the locking sleeve is inserted into the back of the book and the top of the book is inserted into the top of the book. An anti-theft device for books, which is applied to a book which is formed of a piece and has an anti-opening wrapping on a portion including a top / front corner portion formed by a top and a front of the book. The ceiling small edge insertion piece is inwardly directed to the inside of the arm provided downward from the front end of the locking sleeve.
The book antitheft device according to claim 1, wherein the antitheft device is provided.   The anti-theft device for books according to claim 1 or 2, wherein a reinforcing means for the anti-opening packaging of the portion is provided at the top or fore edge of the top / edge corner.   The book antitheft device according to claim 3, wherein the reinforcing means is provided on either the inner surface or the outer surface of the unsealing prevention package. A back frame along the outer side surface of the back of the book, an arm bent along the ground of the book at the lower end of the back frame, a back ground plug inserted in a portion close to the back of the ground provided in the arm, A hinge base bent at the upper end of the back frame so as to follow the top of the book, a locking stick connected to the hinge base via a hinge, and slidable from the front end side of the locking stick to the hinge base A locking sleeve fitted to the locking sleeve, an insertion piece for the book provided on the locking sleeve, and a locking mechanism for the locking sleeve provided on the locking stick, respectively.
In the book anti-theft device, the locking mechanism is operated and the locking sleeve is locked when the locking sleeve is pushed from the front end side of the locking stick to the hinge base.
The insertion piece for the book provided on the locking sleeve is inserted into the back of the book and the top of the book is inserted into the top of the book. Composed of pieces,
A fore-edge gap is provided along the outer side of the fore-edge, and the edge of the fore-edge is inserted into a ground-side edge of the fore-edge corner of the fore-edge corner formed by the ground of the book and the fore edge at the lower end of the fore edge frame. A slit is provided in the upper end of the fore edge frame, through which the top edge of the locking sleeve is inserted.
An anti-theft device for books, which is applied to a book in which an anti-opening packaging is applied to a portion including a ground / small corner composed of a book's ground and a small edge. A back frame along the outer side of the back of the book, an arm bent along the bottom of the book at the lower end of the back frame, and a back ground plug inserted into a portion of the arm that is close to the back of the ground A hinge base bent at the upper end of the back frame along the top of the book, a locking stick connected to the hinge base via a hinge, and slides from the front end side of the locking stick to the hinge base A locking sleeve fitted to the locking sleeve; an insertion piece for the book provided on the locking sleeve; and a locking mechanism for the locking sleeve provided on the locking stick, respectively.
In the book anti-theft device, the locking mechanism is operated and the locking sleeve is locked when the locking sleeve is pushed from the front end side of the locking stick to the hinge base.
The insertion piece for the book provided on the locking sleeve is inserted into the back of the book and the top of the book is inserted into the top of the book. Composed of pieces,
A ground frame is provided along the ground of the book, and a back side ground insertion piece at the lower end of the back frame is inserted from a lower surface of a back side slit provided at a back side end of the ground frame, and the ground frame A book antitheft device in which a fore edge-inserted piece at the lower end of the fore edge frame is inserted from the lower surface of the fore edge slit provided at the fore edge.   The book anti-theft device according to claim 6, wherein a hinge is provided inside the dorsal slit or the fore edge slit of the ground frame. The book antitheft device according to any one of claims 1 to 7, wherein the locking sleeve is provided with a small-edge-side insertion piece.

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