JP2007077684A - Pin tumbler lock device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pin tumbler lock device capable of quickly and easily separating a pin tumbler lock from a base. <P>SOLUTION: A rotary body 7 slidingly contacting a front end surface of a fixed body 6 with a rear end surface of a rotary part 17 and the rotary body rotatable around the axis of a lock shaft, is stored in a cylindrical case 5. A cord pin 10 is respectively inserted into a through-pin hole of the rotary part, and an under pin 24 is respectively energized and inserted into a pin insertion hole of the fixed body, and a return pin 27 is inserted into a through-hole of the fixed body. An engaging projection part 15 of the pin tumbler lock 2 forming the engaging projection part 15 on an outside surface of the fixed body, is guided in the axial direction to a guide groove 33 of the base 3, and next, is guided in the peripheral direction along a cutout window 34, and is joined by inserting a stopper pin 37 into the through-hole 25 by energizing force. A guide slit 35a is formed along the vertical direction in a rear part of the base, and a forcibly retreating claw part 37b of the stopper pin can slide along the guide slit. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a pin tumbler lock device that can separate a pin tumbler lock from a base. More specifically, the present invention, for example, removes a pin tumbler lock device attached to a door of a gaming machine such as a pachinko machine or a pachislot machine, separates the base and the pin tumbler lock, and separates the pin tumbler lock. The present invention relates to a pin tumbler tablet device that can continue to be used.

  A pin tumbler lock in which code pins are arranged on the circumference is frequently used because it is difficult to forge a key. And, as with normal locks, each pin tumbler lock has its own unique key, and other pin tumbler lock keys can not be unlocked or locked. Is. However, in pin tumbler locks to be attached to the doors of gaming machines such as pachinko machines and pachislot machines, having each key corresponding to each pin tumbler lock means that the administrator has the number of machines, Each time unlocking or the like, a necessary key is selected from a large number of keys, which is too complicated and impractical.

Therefore, key management is simplified by using a pin tumbler lock that can be unlocked with a common key (common key) for each gaming machine manufacturer.
In this case, since the common key is the same for gaming machines of the same manufacturer, using the common key can unlock the gaming machine of the same manufacturer installed in another store, which is a big problem for crime prevention. Become.

  Therefore, a dedicated common key is set for each store, and the pin tumbler lock (manufacturer lock) previously attached to the game machine by the manufacturer is removed from all the game machines installed in the store. It is common practice to store the removed manufacturer lock separately by replacing it with a pin tumbler lock (common lock for halls) corresponding to the common key. In this way, all gaming machines installed in each store can be unlocked only with a dedicated common key set for each store, in addition to simplifying key management and storage, There is no fear of being unlocked with the common key of the store, and the problem of crime prevention is also solved.

  By the way, because gaming machines are frequently replaced in stores, the manufacturer locks attached to newly introduced gaming machines are removed, and the common locks for halls that correspond to the common keys used in those stores It is necessary to replace it. For the gaming machine to be removed, the common lock for the hall that has been attached is removed, the manufacturer lock that has been separately stored is reattached, and is appropriately disposed of as a used item. The shape of the maker lock of the hall lock that has been removed from the machine to be removed is the same as the maker lock of the newly introduced game machine, and the shape of the maker lock varies depending on the manufacturer, model, etc. In most cases, they are slightly different, and each time a gaming machine is introduced, a hall common lock corresponding to a newly-installed gaming machine and corresponding to a common key dedicated to the store itself is purchased. In that case, the used common lock for halls removed from the game machine to be removed will be stored or discarded as an unnecessary item until a matching game machine is introduced in the future.

In this way, each time a gaming machine is newly introduced, the purchase of a corresponding hall common lock is a considerable amount. On the other hand, common locks for halls that have been removed and stored with the replacement of gaming machines must be managed so that they are not lost without knowing when they can be reused, and can be reused and damaged. It is useless to dispose of a common lock for halls that is not used as waste, and when disposing it, it is necessary to be careful not to let others know or analyze the common key code used at your store It becomes.
The pin tumbler lock used as the manufacturer lock or the hall common lock described above is generally provided with an attaching portion to a door or the like.

By the way, the inventor of the present invention can use the pin tumbler lock by accommodating it in a separate base, and if necessary, separate the pin tumbler lock from the front side of the base and use another pin tumbler lock as a base. A pin tumbler lock device that can be exchanged from the front side is proposed (for example, see Patent Document 1).
JP 2000-64675 A

The pin tumbler lock device described in Patent Document 1 includes a first key and a second key used for separating the pin tumbler lock in addition to the normal operation key. If the key for normal operation is lost or stolen, the pin tumbler is operated from the front side of the gaming machine by operating the first key and the second key while attached to the door of the gaming machine. It is possible to separate the lock from the base and replace it with another pin tumbler lock, and there is an advantage that an unauthorized operation can be prevented without replacing the entire pin tumbler lock device.
The inventor of this invention removed the pin tumbler lock from the removed pin tumbler lock device when removing the game machine with the pin tumbler lock device described in Patent Document 1 and introducing a new game machine. A base lock corresponding to the shape of the manufacturer lock attached to the newly introduced game machine will be prepared, and the pin tumbler lock separated will be used. The idea has been reached that if it is housed and used, it is only necessary to purchase a base when replacing gaming machines, and the cost required to replace the lock can be reduced.

  However, in the pin tumbler locking device described in Patent Document 1, it is necessary to operate the first key and the second key in order to separate the common lock for the hall from the base. Since it is not a small number but a large number, it is complicated and requires a lot of time and effort.

  The present invention was devised as a result of intensive research based on the above-described idea, and the pin tumbler lock is not used from the pin tumbler lock device removed from the gaming machine, and the first key and the second key are not used. However, the object is to provide a pin tumbler locking device that can be quickly and easily separated.

  In order to solve the above-described problems, the present invention includes (1) a cylindrical case having a key insertion opening formed in the front surface portion, and a fitting insertion that is provided in the rear portion of the case and penetrates from the front end surface to the rear end surface. A fixed body having a hole formed therein, and a lock shaft extending from the center of the rear end surface of the rotating portion are fitted into the fitting insertion hole, and the front end surface of the fixed body and the rear end surface of the rotating portion are slidably contacted to each other. A rotating body rotatable about the axis of the rotating portion, a cord pin inserted into each of a predetermined number of through-pin holes formed on a circumference centered on the axis of the rotating portion, and the through-pin hole on the fixed body Underpins that are urged and inserted into the same number of pin insertion holes that are drilled to communicate with each other, and through holes that are drilled on the circumference of the same radius as the circumference centered on the axis of the fixed body And an insertion protrusion that protrudes from the outer surface of the fixed body and / or case. A pin tumbler lock having a cylindrical inner wall in which the pin tumbler lock is accommodated and a guide groove for guiding the engagement protrusion is formed in parallel with the axis, and the engagement protrusion A notch window having a predetermined length for locking the front end and a through-hole having a sliding contact surface with a front end portion formed perpendicular to the guide groove and a rear end surface of the fixed body, and an axial center. In a pin tumbler locking device comprising a rear part having a pin hole drilled so as to communicate with a base made of a stopper pin that is urged and inserted through the pin hole, the rear part of the base includes the rear part. A guide slit having a predetermined length that reaches the pin hole in parallel with the axis of the base from the rear end of the portion is formed, and a forcible retraction claw portion is provided on the side of the stopper pin. Is slidable along the guide slit. And butterflies.

  (2) a cylindrical case in which a key insertion opening is formed on the front surface portion, and a fixed body provided in a rear portion in the case and having a fitting insertion hole penetrating from the front end surface to the rear end surface; A rotary body in which a lock shaft extending from the central portion of the rear end surface of the rotating portion is fitted and inserted into the fitting insertion hole, and the front end surface of the fixed body and the rear end surface of the rotary portion are slidably contacted to be rotatable about the axis of the lock shaft. A cord pin inserted into each of a predetermined number of through-pin holes drilled on a circumference centered on the axis of the rotating portion, and a pin drilled in the same number so as to communicate with the through-pin hole in the fixed body An underpin that is urged and inserted into each of the insertion holes, and a return pin that is inserted into a through-hole that is formed on a circumference having the same radius as the circumference around the axis of the fixed body, A first groove portion parallel to the axis from the rear end of the fixed body and / or the case to the outer surface and a predetermined length perpendicular to the first groove portion. A pin tumbler lock formed with an engagement groove formed by connecting the groove portions, and a cylindrical shape formed by projecting a protrusion protruding in the radial direction to accommodate the pin tumbler lock and to engage with the engagement groove A front portion having an inner wall thereof, a rear surface having a sliding contact surface with the rear end surface of the fixed body, an opening hole centered on an axis, and a rear portion in which a pin hole is formed so as to communicate with the through hole; In a pin tumbler locking device comprising a base consisting of a stopper pin that is urged and inserted through the pin hole, the rear part of the base is connected to the pin hole parallel to the axis of the base from the rear end of the rear part. A guide slit having a predetermined length is formed, and a forcible retraction claw is provided on the side of the stopper pin so that the forcible retraction claw can slide along the guide slit. It is characterized by that.

In the above (1) or (2), a mounting flange may be formed to project radially outward from a rear end portion of the base rear portion, or
The rear end portion of the base rear portion may be a small-diameter step portion for connection with the extension cylinder, and the guide slit may be formed in the small-diameter step portion.

Since the present invention is configured as described above, the following effects can be obtained.
That is, according to the configuration of the above (1) and (2), roughly, when replacing the gaming machine, the pin tumbler locking device is removed from the gaming machine to be removed, and the forcible retraction claw portion is used to stop the stopper pin. The pin tumbler lock can be rotated with respect to the base by moving the pin back, and then the base and the pin tumbler lock are used for the first key and the second key by rotating the pin tumbler lock in a predetermined direction. Without separation, it can be quickly and easily separated. The separated pin tumbler lock is a manufacturer lock attached to a newly introduced gaming machine (hereinafter, “maker lock” means that the attachment part to a door or the like is integrated). By separately preparing a base corresponding to the shape and storing and using it, it is only necessary to purchase the base, and the cost required for changing the lock can be reduced.

Further details will be described.
According to the configuration of (1) above, in the pin tumbler lock device removed from the gaming machine to be removed, the base and the pin tumbler lock may be separated as follows.
First, hook the fingernail onto the forcible retraction claw or use a tool such as a screwdriver to fix the stopper pin from the state where the rear end of the return pin and the tip of the stopper pin are in contact. The rear end surface of the body and the sliding surface of the rear part of the base are moved backward against the biasing force to the stopper pin to the rear position. If it does so, a pin tumbler lock will be in the state which can be rotated by slidingly contacting the sliding contact surface of the rear part of a base at the rear-end surface of a fixed body. Therefore, for example, when the pin tumbler lock is rotated counterclockwise around its axis by using the lock shaft, the engaging protrusion slides along the notch window of the base. As a result, the connection between the pin tumbler lock and the base is released. In this state, even if the finger or tool is removed from the forcible retraction claw, the pin tumbler lock can continue to rotate, and the engagement protrusion can be slid along the guide groove of the base. Rotate. Next, for example, when the pin tumbler lock is pushed forward using the lock shaft, the pin tumbler lock slides in the axial direction along the guide groove of the base and is separated from the base.

A pin tumbler lock that is separated from the base is housed in a base that corresponds to the shape of the manufacturer lock that is attached to a newly-installed game machine that is separately prepared, and used for a newly-installed game machine. To make a locking device, assemble as follows.
First, the engaging protrusion of the pin tumbler lock is engaged with the guide groove of the base, the pin tumbler lock is slid in the axial direction, and the lock shaft is inserted into the opening hole of the base, while the rear end surface of the fixed body and the base The slidable contact surface of the rear part of is contacted. If it does so, the front-end | tip of a stopper pin will be pressed by the rear-end surface of a fixed body, and will recede to the position of the slidable contact surface of the rear part of a base. Next, the pin tumbler lock is rotated by a predetermined angle integrally around the axis, for example, clockwise to bring the engagement protrusion into sliding contact with the rear end surface of the fixed body and the sliding contact surface of the rear portion of the base. When the through hole through which the return pin of the fixed body is inserted and the pin hole of the base are caused to slide along the notch window, the tip of the stopper pin enters the through hole by the biasing force to the stopper pin. It will be.

Accordingly, the pin tumbler lock is coupled to the base, and a pin tumbler lock device suitable for a newly introduced gaming machine can be assembled.
Then, the pin tumbler lock device assembled in this way may be replaced by removing the manufacturer lock attached to the newly introduced gaming machine.
In this way, the pin tumbler lock of the pin tumbler lock device attached to the gaming machine to be removed can be continuously reused as a pin tumbler lock of a gaming machine that is newly introduced, and is suitable for newly introduced gaming machines You only need to purchase the base separately, which makes it cheaper.

According to the configuration of (2) above, in the pin tumbler lock device removed from the gaming machine to be removed, the base and the pin tumbler lock may be separated as follows.
First, hook the fingernail onto the forcible retraction claw or use a tool such as a screwdriver to fix the stopper pin from the state where the rear end of the return pin and the tip of the stopper pin are in contact. The rear end surface of the body and the sliding surface of the rear part of the base are moved backward against the biasing force to the stopper pin to the rear position. If it does so, a pin tumbler lock will be in the state which can be rotated by slidingly contacting the sliding contact surface of the rear part of a base at the rear-end surface of a fixed body. Therefore, for example, when the pin tumbler lock is rotated counterclockwise around its axis by using the lock shaft, the second groove portion of the engagement groove is slid while being engaged with the protruding portion of the base. Move. As a result, the connection between the pin tumbler lock and the base is released. In this state, even if the finger or tool is removed from the forcible retraction claw, the pin tumbler lock can continue to rotate, and the first groove engages with the protrusion of the base and the axis of the base Rotate to a position where it can slide along the direction. Next, for example, when the pin tumbler lock is pushed forward using the lock shaft, the pin tumbler lock slides along the axial direction of the base with the first groove portion engaged with the protruding portion of the base, Separated from the base.

The pin tumbler lock separated from the base is housed in a separately prepared base corresponding to the shape of the manufacturer lock attached to the newly introduced gaming machine and used for the newly introduced gaming machine. To make a pin tumbler lock device, assemble as follows.
First, the first groove portion of the engagement groove of the pin tumbler lock is engaged with the protruding portion of the base, the pin tumbler lock is slid in the axial direction, and the lock shaft is inserted into the opening hole of the base, The rear end surface is brought into contact with the sliding surface of the rear portion of the base. If it does so, the front-end | tip of a stopper pin will be pressed by the rear-end surface of a fixed body, and will recede to the position of the slidable contact surface of the rear part of a base. Next, the pin tumbler lock is rotated by a predetermined angle integrally around the axis, for example, clockwise to bring the rear end surface of the fixed body and the sliding contact surface of the rear portion of the base into sliding contact with the second groove portion. When the protrusion is engaged and slid, and the through hole through which the return pin of the fixed body is inserted and the pin hole of the base are communicated, the tip of the stopper pin is moved through the through hole by the biasing force to the stopper pin. Will invade.

Accordingly, the pin tumbler lock is coupled to the base, and a pin tumbler lock device suitable for a newly introduced gaming machine can be assembled.
Then, the pin tumbler lock device assembled in this way may be replaced by removing the manufacturer lock attached to the newly introduced gaming machine.
In this way, the pin tumbler lock of the pin tumbler lock device attached to the gaming machine to be removed can be continuously reused as a pin tumbler lock of a gaming machine that is newly introduced, and is suitable for newly introduced gaming machines You only need to purchase the base separately, which makes it cheaper.
Moreover, the pin tumbler locking device of the present invention has a simple structure and can be provided at a low cost.

The best mode for carrying out the invention will be described below, and the present invention will be described in more detail. Of course, the present invention is not limited to the following embodiments.
1 is a longitudinal sectional view showing an embodiment of a pin tumbler locking device according to the present invention, FIG. 2 is a plan view, FIG. 3 is a sectional view taken along line AA in FIG. 1, and FIG. 5 is a front view, FIG. 6 is a left side view, and FIG. 7 is a bottom view.

As the pin tumbler lock device 1, a cylindrical pin tumbler lock 2, a base 3 for receiving and connecting the pin tumbler lock, and a joint 4 connected to the pin tumbler lock are illustrated.
As shown in the figure, the pin tumbler lock 2 has a cylindrical case 5, a fixed body 6 fixed to the rear part in the case 5, and is supported by the fixed body 6 so that it can rotate in the case 5. The rotating body 7 is provided.

  An inward flange portion 9 from the periphery of the case to the key insertion port 8 is formed on the front surface portion of the case 5, and a concave portion 11 that allows passage of the key protrusion is formed in a part of the flange portion 9. Has been. The rear surface of the flange portion functions as a stopper with which the tip of a cord pin 10 to be described later comes into contact. An annular stepped portion protrudes from the inner wall of the case 5 near the flange portion, and movement of the rotating body 7 in the axial direction is restricted. Further, as shown in FIG. 3, guide grooves 12 and 12 having a predetermined depth from the rear end are formed on the inner side of the rear portion of the case 5 so as to face each other in parallel with the axis.

  The front part of the fixed body 6 is inserted into the rear part in the case 5, and is fixed to the case 5 integrally by a fixing pin 13. The insertion of the fixed body 6 into the case 5 is performed by inserting the protrusions 14 and 14 having predetermined lengths that protrude from the outer peripheral surface of the front portion of the fixed body 6 in parallel with the axis from the peripheral edge of the front end surface. It is performed by guiding along the guide grooves 12 and 12 provided in the inner rear portion of the case 5, and is fixed at a predetermined position where the rear portion of the fixed body 6 is exposed. Engagement projections 15 and 15 that engage with a notch window of the base, which will be described later, are opposed to the outer surface of the rear portion of the fixed body 6 so as to protrude in the radial direction.

  The fixed body 6 is provided with a fitting insertion hole 16 extending from the central portion of the front end surface toward the rear end surface, and the fitting insertion hole 16 is rearward from the central portion of the rear end surface of the rotating portion 17 having a large diameter and a short cylindrical shape. The extended lock shaft 18 is inserted and inserted so that the front end surface of the fixed body 6 and the rear end surface of the rotating portion 17 are in sliding contact with each other and can rotate. A key engaging part 19 projects forward from the center of the front end surface of the rotating part 17, and the key engaging part 19 is formed with a notch groove 20 for engaging the key.

  The rotating portion 17 of the rotating body 7 has a through-pin hole 21 on the circumference of a predetermined radius centered on the axis, for example, the first of the positions where the circumference is divided into six equal parts (that is, 60 degrees apart). Except this position, the second to sixth positions are drilled parallel to the axis, and the code pins 10A to 10E are inserted into the respective through pin holes 21. Therefore, as is apparent from the drawing, no through pin hole is formed at a position in the vicinity of the notch groove 20 of the key engaging portion 19 of the rotating portion 17 which is the first position. The length of each cord pin is set in accordance with a pin pressing cam groove provided on the key.

  The fixed body 6 is provided with the exception of the first position except for the first position among the positions obtained by dividing the circumference into six equal parts on the circumference having the same radius as the through-pin hole 21 drilled in the rotating portion 17 with the axis as the center. In the second to sixth positions, a bottomed pin insertion hole 22 is drilled in parallel with the axis, and a coil spring 23 and under pins 24A to 24E are inserted into these pin insertion holes 22, respectively. The underpin 24 is urged forward by the coil spring 23, the cord pin 10 protrudes forward through the underpin 24, and the tip of the cord pin 10 comes into contact with the rear surface of the inward flange portion 9 of the case. . The length of each underpin is usually the same, a leg portion is provided at the lower portion thereof, and a coil spring 23 is mounted around the leg portion. The length of the leg is such that the key is inserted from the key insertion slot 8 and the code pin is pushed in. The position of the rear end of the code pin and the front end of the underpin is the rear end surface of the rotating portion 17 and the front end surface of the fixed body 6. It is set so that there is no hindrance to the position matching the sliding contact position. In addition, the said pin insertion hole is not restricted to a bottomed thing, You may penetrate to the rear-end surface of the fixing body 6, In such a case, a pin insertion hole is a front-end surface of a fixing body, for example From the intermediate portion to the large diameter portion, the rear portion from the intermediate portion to the small diameter portion, and a step portion for receiving the coil spring may be provided.

  At the first position on the same circumference as the pin insertion hole drilled in the fixed body 6, the through hole 25 is drilled in parallel with the axis, and the coil spring 26 is returned to the through hole 25. A pin 27 is inserted. The through hole 25 has a large diameter portion from the front end surface to the intermediate portion and a small diameter portion behind the intermediate portion to form a step portion for receiving the coil spring 26 so that the return pin 27 does not fall out of the through hole 25. The leg portion of the return pin 27 is inserted into the small diameter portion of the through hole 25.

  The tip of the under pin and the return pin are processed into a substantially hemispherical shape so that the rear end surface of the rotating portion 17 and the front end surface of the fixed body 6 can be slidably contacted and rotated.

  The rear end portion of the lock shaft 18 is a prismatic portion, and can be connected to a recess formed in the base end portion of the joint 4. A vertical groove is formed in the prismatic portion, and the vertical protrusion provided in the concave portion at the base end portion of the joint 4 is matched with the vertical groove to fit the rectangular column portion into the concave portion, so that the rotating body 7 and the joint 4 are fixed to each other. Can be connected at an angle of

  In the base 3, the front part 30 and the rear part 31 are integrated. The front portion 30 is cylindrical and has a cylindrical inner wall that accommodates and accommodates the pin tumbler lock 2, and guides the engaging protrusions 15 and 15 of the pin tumbler lock 2 to pin the pin tumbler lock at a predetermined position. The tumbler lock 2 is structured to be engaged with the base 3, and the rear portion 31 includes a pin mechanism for locking the connection between the pin tumbler lock 2 and the base 3 and an opening hole 32 through which the joint 4 is inserted. FIG. 9 is a cross-sectional view of the base 3.

  An annular stepped portion projecting inward is provided below the inner wall of the front portion 30, and guide grooves 33, 33 parallel to the axis are formed facing the stepped portion (see FIG. 8). The front portion 30 is formed with cutout windows 34 and 34 that are continuous from the rear end of the guide groove and extend in the clockwise direction perpendicular to the guide groove (see FIGS. 4 and 9). Therefore, if the engaging protrusions 15 and 15 of the pin tumbler lock 2 are slid along the guide grooves 33 and 33 to reach the positions of the cutout windows 34 and 34, then they are rotated clockwise. The mating protrusion 15 slides along the notch window 34 and is engaged at the edge of the engagement protrusion and the edge of the notch window. The width of the engaging protrusion is different, and the width of the corresponding guide groove is also different, the direction in which the engaging protrusion of the pin tumbler lock is inserted into the guide groove is determined, and the pin tumbler lock is coupled to the base The direction in which it is made can be easily discriminated.

An opening hole 32 centered on the axis is formed in the rear portion 31, and the joint 4 described above is inserted into the opening hole 32. The joint 4 is composed of a large-diameter portion and a small-diameter portion connected to the large-diameter portion, and the opening hole 32 has two stages of a large-diameter hole portion matching the shape of the joint 4 and a small-diameter hole portion connected thereto. The rear end portion of the joint 4 protrudes from the rear portion 31, the outer surface is cut away in parallel with the shaft, and a female screw hole is provided in the axial direction, so that an appropriate locking mechanism member (for example, in a pachinko machine or a pachislot machine) The cam plate or the like used for the locking device can be positioned and fixed with screws in a predetermined direction. In addition, the joint 4 is manufactured in various ways with different lengths of the small diameter portion, and, as will be described later, according to the length of the base adopted when newly introducing the gaming machine, What is necessary is just to enable it to replace | exchange with the thing from which the length of a small diameter part differs.
A pin hole 36 is drilled in the vicinity of the opening hole 32 in parallel to the axis, and the pin hole 36 has a small diameter portion from the sliding contact surface to the middle portion of the rear portion, and a large diameter portion from the middle portion to the rear end surface. In the rear portion of the pin hole 36, a female screw is formed.

A stopper pin 37 having a small front diameter and a large rear diameter from the rear end surface side of the rear portion 31 is inserted into the pin hole 36 together with a coil spring 38, and a set screw 39 is fixed to a female screw formed at the rear portion of the pin hole 36. The stopper pin 37 is biased by a coil spring 38 so as to protrude forward.
The pin hole 36 is provided at a position communicating with the through hole 25 of the fixed body 6 in a state where the pin tumbler lock 2 is coupled to the base 3. When the engagement protrusions 15 and 15 of the pin tumbler lock 2 slide in the axial direction along the guide grooves 33 and 33 as described above and reach the position of the cutout windows 34 and 34, the rear end surface of the fixed body 6 Comes into contact with the sliding surface of the rear portion 31, and the stopper pin 37 is pushed back. Then, the pin tumbler lock 2 is rotated in the clockwise direction, the engagement protrusion 15 is slid along the notch window 34, and the through hole 25 of the fixed body 6 and the pin hole 36 of the rear portion 31 communicate with each other. , The tip of the stopper pin 37 enters the through hole 25 by the biasing force of the coil spring 38, and the tip of the stopper pin 37 abuts on the rear end of the return pin 27 to prevent the pin tumbler lock 2 from rotating. The pin tumbler lock 2 is in a state of being coupled to the base 3 (see FIG. 1).

  In the rear portion 31 of the base 3, a vertical groove 35 a is formed that is parallel to the axis extending from the rear end to the front side of the large diameter portion of the pin hole 36. At the bottom of the vertical groove 35a, there is formed a guide slit 35b extending from the rear end of the rear portion 31 to the large diameter portion of the pin hole 36 in parallel with the axis of the base 3 and reaching the tip of the large diameter portion. Yes.

  The stopper pin 37 is provided with a forcible retraction claw portion 37b projecting laterally from the large diameter portion 37a. The forcible retraction claw portion 37b has a lateral width that can slide along the guide slit 35b. The longitudinal width is substantially equal to the length of the large diameter portion 37 of the stopper pin 37, and the protruding height is the base height. 3 is set so as not to protrude outward from the rear portion 31 (see FIG. 10 for the structure of the stopper pin 37).

  In a state where the pin tumbler lock 2 shown in FIG. 1 is coupled to the base 3, that is, in a state where the distal end portion of the stopper pin 37 enters the through hole 25 by the biasing force of the coil spring 38, A gap is formed between the tip of the groove 35a so that an appropriate tool, for example, a tip of a driver or the like can be inserted. In FIG. 6, the horizontal groove 35a and the guide slit 35b formed in the rear portion 31 of the base have the same width, but the width is not limited to this, and the width of the vertical groove 35a is the width of the guide slit 35b. May be larger. Thus, when the horizontal width of the vertical groove 35a is larger than the horizontal width of the guide slit 35b, the horizontal width is such that the fingernail is inserted so that the forced retraction claw portion 37b can be retreated by the fingernail. It is preferable. In the structure shown in FIG. 6, the left and right of the vertical groove 35a may be scraped off by a predetermined width to form a flat portion on the base, and the top of the forcibly retracting claw portion 37b may be exposed from the base 3. By doing so, it becomes easy to hook with a finger, and the forcible retraction claw portion 37b can be easily retreated (see FIG. 30 for the flat portion).

The guide slit 35b locks the tool at the tip of the forcible retraction claw portion 37b, and when the stopper pin 37 is retracted against the urging force of the coil spring 38, the tip of the stopper pin 37 enters the through hole 25 and returns. From the state shown in FIG. 1 in contact with the rear end of the pin 27, the stopper pin 37 can be retracted to a rear position at the front end of the stopper pin 37 from the rear end surface of the fixed body 6 and the sliding contact surface of the rear portion 31 of the base. Is set.
Accordingly, the tip of the forcible retraction claw portion 37b is locked with a tool, the stopper pin 37 is retracted against the urging force of the coil spring 38, and the position of the tip of the stopper pin 37 is at least the rear end surface of the fixed body 6. The pin tumbler lock 2 can be uncoupled from the base 3 by moving it to the contact position of the sliding contact surface of the rear portion 31, and the pin tumbler lock 2 can be rotated counterclockwise. Can be slid along the notch window 34 and then slid along the guide groove 33 in the axial direction.

  At the rear portion 31 of the base, mounting flanges 41 and 41 protrude from the left and right, and mounting holes 42 and 42 are formed in the flange.

  As described above, FIG. 1 shows a state in which the pin tumbler lock 2 is coupled to the base 3, the engaging protrusion 15 engages with the cutout window 34, and the tip of the stopper pin 37 is returned to the return pin by the biasing force of the coil spring 38. 27 is in contact with the rear end of the fixed body 6, and the tip of the return pin 27 is in contact with the rear end surface of the rotating portion 17. The axis of the case 5, the axis of the rotating portion 17, the lock The axis of the shaft 18, the axis of the fixed body 6, the axis of the base 3, and the axis of the joint 4 coincide and become a common axis. The tip of the cord pin 10 is in contact with the rear surface of the inward flange portion 9 on the front surface of the case 5 through the under pin 24 by the biasing force of the coil spring 23.

  In this state, unlocking or the like can be performed using the normal operation key 50 shown in FIG. As shown in FIG. 11, the key 50 has a cylindrical shape, and cam grooves 51 </ b> A to 51 </ b> E for pressing each cord pin from the tip are formed on the outer peripheral surface corresponding to the number of cord pins. The depth of these cam grooves is set according to the length of each of the code pins 10A to 10E. The key 50 is inserted into the key insertion port 8 of the pin tumbler lock 2, and the code pins 10A to 10E are used as the biasing force of the coil spring. When pressed against, the contact positions of the rear ends of the cord pins 10A to 10E and the tips of the under pins 24A to 24E are the same as the sliding contact positions of the rear end surface of the rotating portion 17 of the rotating body 7 and the front end surface of the fixed body 6. In addition, the rotating body 7 can be rotated, and can be unlocked.

Further, a protrusion 52 is provided on the outer periphery of the tip of the key 50, and a protrusion 53 for transmitting a rotational force is provided on the inner periphery of the key 50 at a position opposite to the protrusion 52. In the state where the notch groove 20 of the key engaging portion 19 of the pin tumbler lock 2 is shown in FIG. 2, the key removal preventing projection 52 is formed in the recessed portion 11 of the inward flange portion 9, and the rotational force transmitting projection 53 is rotated. When the key 50 is pushed in so as to match the notch recessed groove 20 of the key engagement portion 7, the key can be rotated by the above-described action of the cam groove 51 (see FIG. 12A), and the protrusion 52 for preventing removal. Rotates against the back surface of the flange portion 9 while preventing the key from coming off, while the rotational force transmitting projection 53 engages with the notch groove 20 of the key engaging portion of the rotating body 7 to apply the rotational force to the rotating body 7. give. FIG. 12B shows a state where the one pitch key 50 is rotated counterclockwise. In FIG. 12, the forcible retraction claw portion 37b of the stopper pin 37 and the like are omitted.
In this way, by rotating the key 50, for example, the door can be unlocked by a pin tumbler locking device attached to the door of the gaming machine.

Next, the assembly of the pin tumbler lock device having the above-described configuration and the operation of separating the pin tumbler lock and the base in the lock device will be described.
The assembly operation of the pin tumbler locking device 1 is shown in FIG. 13 (in the figure, the forcible retraction claw portion of the stopper pin 37 is omitted). First, when the engagement protrusion 15 of the pin tumbler lock is engaged with the guide groove 33 and the pin tumbler lock is slid along the guide groove to reach the position of the notch window 34, the rear end face of the fixed body 6 Comes into contact with the sliding surface of the rear portion 31, and the stopper pin 37 is pushed back as shown in FIG. Then, the pin tumbler lock 2 is rotated clockwise (in the direction of the arrow in FIG. 13B), and the engagement protrusion 15 is slid along the notch window 34, so that the through hole 25 and the rear portion of the fixed body 6 are slid. When reaching the position where the 31 pin hole 36 communicates, the tip of the stopper pin 37 enters the through hole 25 by the urging force of the coil spring 38, and the tip of the stopper pin 37 returns as shown in FIG. The pin tumbler lock 2 abuts on the rear end of the pin 27 and is coupled to the base 3, and the pin tumbler lock device 1 can be assembled.

FIG. 14 is a partial side view showing a state in which the pin tumbler locking device 1 is attached to the front door 44 of the gaming machine via the locking device 45, and FIG. 15 is a perspective view of the gaming machine. The gaming machines shown in FIGS. 14 and 15 are pachinko machines.
As shown in FIG. 14, a cam plate 48 is screwed to the joint 4 of the pin tumbler lock 2, and the base is screwed to the locking device 45 through an attachment hole 42 of the flange 41. As shown in FIG. 15, the locking device 45 is attached to the front door 44. The front door 44 to which the locking device 45 is attached can be opened and closed horizontally rearward with respect to the main body frame 43 by a hinge, and the hooks 46 and 46 of the locking device 45 are provided on the inner side of the main body frame 43 (see FIG. (Not shown), the front door 44 can be locked to the main body frame 43, and the cam plate 48 is rotated by a key operation using the key 50 for normal operation. The front door 44 can be opened with respect to the main body frame 43 by releasing the engagement between the 46 and 46 and the receiving metal and unlocking.

When such a gaming machine is removed and a new gaming machine is introduced, the operation of removing the pin tumbler lock device 1 from the front door 44 of the gaming machine to be removed and separating the pin tumbler lock 2 and the base 3 is illustrated in FIG. It demonstrates with the partial expanded view of 16 pin tumbler locking devices. In FIG. 16, the forcible retraction claw portion 37b of the stopper pin 37 and the like are omitted.
FIG. 16A is a partial development view of the pin tumbler locking device in a state of being taken out from the front door.
In the state shown in FIG. 16A, when a tool such as a screwdriver is locked to the tip of the forcible retraction claw portion 37b and the stopper pin 37 is retracted against the urging force of the coil spring 38, the tip of the stopper pin 37 From the state of entering the through hole 25 and contacting the rear end of the return pin to the rear position from the rear end surface of the fixed body 6 and the sliding surface of the rear portion 31 of the base (FIG. 16B). )reference).

  In such a position, the pin tumbler lock 2 is in a rotatable state by slidingly contacting the sliding contact surface of the rear portion of the base 3 on the rear end surface of the fixed body 6. Therefore, when the cam plate 48 is held and rotated counterclockwise, the lock shaft 18 and eventually the pin tumbler lock 2 are rotated counterclockwise about the axis via the joint 4 (the arrow direction in FIG. 16C). The engaging projection 15 slides along the notch window 34 of the base 3. As a result, the connection between the pin tumbler lock 2 and the base 3 is released. In this state, even if the tool is removed from the forcible retraction claw portion 37b, the pin tumbler lock 2 can continue to rotate, and the engagement protrusion 15 can slide along the guide groove 33 of the base 3. (See FIG. 16C). When the cam plate 48 is pushed forward at that position, the lock shaft 18 and thus the pin tumbler lock 2 slides in the axial direction along the guide groove 33 of the base 3 through the joint 4 and is separated from the base 3. The

According to the pin tumbler lock device 1 having such a structure, the pin tumbler lock 2 can be separated from the base 3 quickly and easily without using the first key and the second key.
Note that the rotation of the pin tumbler lock in the counterclockwise direction is not limited to the holding of the cam plate, and for example, a normal operation key 50 may be used.

In this way, the pin tumbler lock 2 separated from the base 3 is prepared separately as a base corresponding to the shape of the manufacturer lock attached to the newly introduced gaming machine (for example, the pin tumbler to be removed). The assembly operation in the case of assembling as a pin tumbler lock device 1 that is housed in a base longer than the base of the lock device and used for a newly introduced game machine is the same as the assembly operation of the pin tumbler lock device 1 described above. Therefore, the description is omitted.
And the manufacturer lock | rock attached to the game machine which introduces the pin tumbler lock apparatus 1 assembled in this way newly should just be removed and replaced | exchanged.
Thus, the pin tumbler lock 2 can be continuously reused in the pin tumbler lock device 1 of a gaming machine to be newly introduced, and a base 3 suitable for the newly introduced gaming machine can be purchased separately. It will be cheap.

  The pin tumbler lock device 1 has a first key, a first key for exchanging the pin tumbler lock 2 and the base 3 from the front side while attached to the door when the key for normal operation is lost or stolen. Needless to say, the two keys can be used for separation, and the operation is as described in Patent Document 1.

  The connection structure between the pin tumbler lock and the base in the pin tumbler lock device is not limited to the above-described structure, and various structures can be employed.

  FIG. 17 shows a pin tumbler locking device 60 of still another embodiment. In this device, the case 62 of the pin tumbler lock 61 is extended rearward, and the engaging protrusions 63, 63 are provided on the outer surface of the case 62. Therefore, from the front end edge of the front portion of the base 64. Guide grooves 65, 65 for sliding the engaging protrusions are formed on the inner wall.

The other structure is the same as in FIGS. 1 to 10, and the key to be used is the same as in FIG. 11. The pin tumbler lock device attached to the gaming machine to be removed is removed, and the pin tumbler lock is separated from the base. Operation, pin tumbler lock separated from the base is housed in a base corresponding to the shape of the manufacturer lock attached to the newly introduced gaming machine, and used for the newly introduced gaming machine Since the assembling operation and the like for the pin tumbler locking device are the same as those of the pin tumbler locking device shown in FIGS. 1 to 10, detailed description thereof will be omitted.
In addition, you may make it provide an engagement protrusion in the shape which followed both the fixed body and the case.

  FIG. 18 shows a pin tumbler locking device 70 of still another embodiment. In this device, the case 72 of the pin tumbler lock 71 is extended rearward, and the engaging grooves 73 are formed on the outer surface of the case 72. Therefore, the engagement is provided from the inner wall of the front portion of the base 74. The combination pins 75 and 75 are projected. Specifically, the engaging grooves 73, 73 are a groove portion (first groove portion) parallel to an axis recessed from the rear end of the case 72 and a groove portion (second groove section) having a predetermined length perpendicular to the groove portion (first groove portion). It has an inverted L shape with a series of.

The other structure is the same as in FIGS. 1 to 10, and the key to be used is the same as in FIG. 11. The pin tumbler lock device attached to the gaming machine to be removed is removed, and the pin tumbler lock is separated from the base. Operation, pin tumbler lock separated from the base is housed in a base corresponding to the shape of the manufacturer lock attached to the newly introduced gaming machine, and used for the newly introduced gaming machine Since the assembling operation and the like for the pin tumbler locking device are the same as those of the pin tumbler locking device shown in FIGS. 1 to 10 and are apparent from the description of the effects of the invention, detailed description thereof will be omitted.
As described above, the rear portion of the fixed body may be the same as the outer diameter of the case, and the engagement groove may be recessed here, instead of providing the engagement groove in the case. You may make it provide an engagement groove | channel on both a fixed body and a case continuously.

  FIG. 19 shows a pin tumbler locking device 80 of still another embodiment. This device 80 has a structure in which a flange is provided at the rear end portion of the base, and a pair of insertion pieces 81a and 81a project from the rear end portion of the base 81, and the insertion pieces are, for example, a pachinko machine or a pachislot machine. It can be fixed by being inserted into the insertion hole of the locking device.

The other structure is the same as in FIGS. 1 to 10, and the key to be used is the same as in FIG. 11. The pin tumbler lock device attached to the gaming machine to be removed is removed, and the pin tumbler lock is separated from the base. Operation, pin tumbler lock separated from the base is stored in a separate base corresponding to the shape of the manufacturer lock attached to the newly introduced gaming machine and used for the newly introduced gaming machine Since the assembling operation and the like for the pin tumbler locking device are the same as those of the pin tumbler locking device shown in FIGS. 1 to 10, detailed description thereof will be omitted.
In addition, in the pin tumbler locking device 80 shown in FIG. 19, the insertion piece may be inserted into the insertion hole of the flange plate and fixed thereto. In this case, the pin tumbler shown in FIGS. Similar to a locking device.

20 to 29 show still another embodiment of the pin tumbler locking device of the present invention.
In the pin tumbler locking device 100, a small diameter step portion 131a is generally formed in the rear portion 131 of the base 103, and a connection cylinder 140 (to be described later) can be connected to the small diameter step portion 131a via connection pins 145 and 145. The small diameter step 131a of the base 103 has a guide slit 135b that is parallel to the axis of the base and reaches the large diameter portion of the pin hole 136 from the rear end of the rear portion 131 to the front end of the large diameter portion. Is formed.
The small-diameter step portion 131a has fitting insertion holes 131b and 131b for the connecting pins 145 and 145. Others are the same as the pin tumbler lock device 1 shown in FIGS. 1 to 10, and thus the same components are denoted by the same reference numerals and detailed description thereof is omitted.

For example, the connecting cylinder 140 is preferably used when the front door is thick like a pachislot machine, but is not limited to a pachislot machine.
As shown in FIG. 29, in the pin tumbler locking device 100, the joint 139 has a small diameter portion and is extended from the rear end of the connecting tube 140 by a predetermined length (note that FIG. In 29 etc., a part of the small diameter portion of the joint is omitted.) A notch 141 parallel to the axis is formed on the distal end side of the connecting cylinder 140, and the forcible retraction claw portion 37b protruding from the large diameter portion of the stopper pin 37 can be slid. The connection tube 140 is provided with fitting insertion holes 143 and 143 for the connecting pin 145.

  In the pin tumbler lock device 100, the key to be used is the same as that of FIG. 11, and the operation of separating the pin tumbler lock from the base by removing the pin tumbler lock device attached to the game machine to be removed was separated from the base. Assembling the pin tumbler lock as a pin tumbler lock device for use in a newly introduced game machine by housing the pin tumbler lock in a base corresponding to the shape of the manufacturer lock attached to the newly introduced game machine. Since operations and the like are the same as those of the pin tumbler locking device shown in FIGS. 1 to 10, detailed description thereof will be omitted.

Further, as shown in FIG. 30, the left and right sides of the notch 141 of the connection tube 140 may be scraped off to form a flat portion. According to this, when the connection tube 140 is connected to the pin tumbler locking device 100, the top of the forcible retraction claw portion 37b is exposed from the connection tube 140 and is easily hooked with a finger. Can be easily performed.
Further, the connection cylinder is not limited to the one having the flange as shown in FIGS. 29 and 30, and a pair of insertion pieces project from the rear end portion of the connection cylinder, and the insertion piece is, for example, a pachislot You may make it insert and fix to the insertion hole of the locking device of a machine, and you may make it insert in an insertion hole of a flange plate and fix to this.

As the stopper pin, a stopper pin 137 in which a spring receiving recess 137e is formed in the large diameter portion 137 and a coil spring is inserted as shown in FIG.
In addition, on the outer surface of the forcible retraction claw part protruding from the side of the large diameter part of the stopper pin, for example, irregularities such as knurling are formed, and the tool is locked to the irregularities, or friction with the belly of fingers Instead of using a fingernail to retract the stopper pin, the stopper pin may be retracted by the finger pad.
Further, the forcible retraction claw portion protruding from the side of the large diameter portion of the stopper pin is composed of a neck portion that slides in the slide groove and a head portion that can be easily locked with a tool or the like. In this case, for example, various shapes such as those having a spherical head and a cylindrical neck can be employed.

The structure of the pin tumbler locking device is not limited to the above, and various modifications can be made.
That is, the shape of the front part of the base is not limited to a cylindrical shape, and the length thereof is not so long as to accommodate the whole except for the front part of the pin tumbler lock. For example, the rear part of the pin tumbler lock is accommodated. It may be.
Further, the number of cord pins and the like of the pin tumbler lock is not limited to the number shown in the figure, and may be more or less than this. The arrangement positions of the return pins and the under pins on the fixed body are not limited to the structure shown in the figure, and can be changed as appropriate.

In addition, the positional relationship between the cord pin and the return pin for releasing the coupling between the pin tumbler lock and the base is not limited to the one position as described above, and the cord pin for releasing the coupling between the pin tumbler lock and the base The rotation direction of the rotating body for contacting the return pin is not limited to the above-described direction, and may be the reverse direction.
In addition, a coil spring for biasing the return pin is not necessarily required. However, the provision of this coil spring is preferable because the return pin is not inadvertently exposed from the through hole.

Further, the pin tumbler lock is not limited to providing a pair of engaging protrusions or engaging grooves with the base so as to face the pin tumbler lock, but may be a pair or more, and may not be opposed. The engagement protrusion and the engagement groove may be single.
Further, it is possible to omit the joint by extending the lock shaft of the rotating body and fitting the end of the lock shaft to a member of an appropriate lock mechanism.
Also, instead of a structure in which a female screw hole is provided at the rear end of the joint and the cam plate is fixed with a screw, the female screw hole is not formed and the rear end of the joint is spread to fix the cam plate or the like. It may be.

  This pin tumbler lock device is not only used for game machine doors but also for various products such as vending machines, desk drawers, lockers, house doors, automobile doors, etc. Can do.

It is a longitudinal cross-sectional view which shows one Embodiment of the pin tumbler tablet apparatus of this invention. It is a top view of the pin tumbler locking device shown in FIG. It is the sectional view on the AA line of the pin tumbler locking device shown in FIG. It is a disassembled perspective view of the pin tumbler locking device shown in FIG. It is a front view of the pin tumbler locking device shown in FIG. It is a left view of the pin tumbler locking device shown in FIG. It is a bottom view of the pin tumbler locking device shown in FIG. It is a top view of the base of the pin tumbler locking device shown in FIG. It is a longitudinal cross-sectional view of the base of the pin tumbler locking device shown in FIG. It is a stopper pin of the pin tumbler locking device shown in FIG. 1, wherein (a) is a front view, (b) is a left side view, and (c) is a bottom view. It is a fragmentary perspective view of the key for normal operation in the pin tumbler locking device shown in FIG. It is a partial expanded sectional view which shows the operation | movement at the time of unlocking operation by the key for normal operation of the pin tumbler lock apparatus shown in FIG. FIG. 3 is a partial cross-sectional development view showing an operation during assembly of the pin tumbler locking device shown in FIG. 1. It is a partial side view of the state which mounted | wore the front door of the pachinko machine with the pin tumbler locking device shown in FIG. It is a perspective view which shows the state which mounted | wore the front door of the pachinko machine with the pin tumbler locking device shown in FIG. FIG. 2 is a partial cross-sectional development view showing an operation at the time of separation of the pin tumbler lock and the base in the pin tumbler lock device shown in FIG. 1. It is a disassembled perspective view which shows other embodiment of the pin tumbler lock apparatus of this invention. It is a disassembled perspective view which shows other embodiment of the pin tumbler lock apparatus of this invention. It is a disassembled perspective view which shows other embodiment of the pin tumbler lock apparatus of this invention. It is a longitudinal cross-sectional view which shows other embodiment of the pin tumbler tablet apparatus of this invention. It is a top view of the pin tumbler locking device shown in FIG. It is BB sectional drawing of the pin tumbler lock apparatus shown in FIG. It is a disassembled perspective view of the pin tumbler locking device shown in FIG. It is a front view of the pin tumbler locking device shown in FIG. It is a left view of the pin tumbler lock apparatus shown in FIG. It is a bottom view of the pin tumbler locking device shown in FIG. It is a top view of the base of the pin tumbler locking device shown in FIG. It is a longitudinal cross-sectional view of the base of the pin tumbler locking device shown in FIG. It is a disassembled perspective view which shows the structure which mounts a connection cylinder to the pin tumbler lock apparatus shown in FIG. It is a disassembled perspective view which shows the structure which mounts the connection cylinder of another example to the pin tumbler lock apparatus shown in FIG. The other embodiment of the stopper pin used for the pin tumbler locking device of this invention is shown, (a) is a front view, (b) is a left view, (c) is a bottom view.

Explanation of symbols

1 Pin tumbler lock device 2 Pin tumbler lock 3 Base 5 Case 6 Fixed body 7 Rotating body 27 Return pin 35a Vertical groove 35b Guide slit 37 Stopper pin 37b Forced retraction claw

Claims (4)

A cylindrical case having a key insertion opening formed on the front surface, a fixed body provided in a rear portion of the case and having a fitting insertion hole penetrating from the front end surface to the rear end surface; and the fitting insertion hole A rotating shaft extending from the center of the rear end surface of the rotating portion is inserted, the rotating end of the rotating portion is slidably contacted with the front end surface of the fixed body and the rear end surface of the rotating portion, and is rotatable about the axis of the locking shaft; A cord pin inserted into a predetermined number of through-pin holes drilled on a circumference centered on the axis and a pin insertion hole drilled in the same number so as to communicate with the through-pin hole are respectively attached to the fixed body. An underpin inserted by being biased, and a return pin inserted in a through hole formed on a circumference having the same radius as the circumference around the axis of the fixed body, and the fixed body and / or A pin tumbler lock that protrudes from the outer surface of the case and has an engagement protrusion, and the pin tumbler A guide groove that accommodates the lock and guides the engaging protrusion has a cylindrical inner wall formed in parallel to the axis, and a notch window of a predetermined length that locks the engaging protrusion. A pin hole is drilled so as to communicate with the through hole and an opening hole centered on the axis having a sliding contact surface with the front portion formed orthogonal to the guide groove and the rear end surface of the fixed body. In a pin tumbler locking device comprising a rear part and a base comprising a stopper pin that is urged and inserted through the pin hole,
A guide slit having a predetermined length reaching the pin hole in parallel with the axis of the base from the rear end of the rear part is formed in the rear part of the base,
A pin tumbler locking device, characterized in that a forcible retraction claw portion projects from a side of the stopper pin, and the forcible retraction claw portion is slidable along the guide slit. A cylindrical case having a key insertion opening formed on the front surface, a fixed body provided in a rear portion of the case and having a fitting insertion hole penetrating from the front end surface to the rear end surface; and the fitting insertion hole A rotating shaft extending from the center of the rear end surface of the rotating portion is inserted, the rotating end of the rotating portion is slidably contacted with the front end surface of the fixed body and the rear end surface of the rotating portion, and is rotatable about the axis of the locking shaft; A cord pin inserted into a predetermined number of through-pin holes drilled on a circumference centered on the axis and a pin insertion hole drilled in the same number so as to communicate with the through-pin hole are respectively attached to the fixed body. An underpin inserted by being biased, and a return pin inserted in a through hole formed on a circumference having the same radius as the circumference around the axis of the fixed body, and the fixed body and / or A first groove parallel to the axis and a second groove of a predetermined length perpendicular to the axis are connected from the rear end of the case to the outer surface. Pin tumbler lock formed with a formed engagement groove, and a cylindrical inner wall formed by projecting a protrusion projecting in the radial direction to accommodate the pin tumbler lock and engage with the engagement groove A front portion having a sliding contact surface with a rear end surface of the fixed body, an opening hole centering on an axis, a rear portion in which a pin hole is formed so as to communicate with the through hole, and the pin hole In a pin tumbler locking device comprising a base consisting of a stopper pin that is urged and inserted through
A guide slit having a predetermined length reaching the pin hole in parallel with the axis of the base from the rear end of the rear part is formed in the rear part of the base,
A pin tumbler locking device, characterized in that a forcible retraction claw portion projects from a side of the stopper pin, and the forcible retraction claw portion is slidable along the guide slit. The pin tumbler locking device according to claim 1 or 2, wherein a mounting flange is formed to project radially outward from a rear end portion of the base rear portion. The rear end portion of the base rear portion is a small-diameter step portion for connection with an extension cylinder, and the guide slit is formed in the small-diameter step portion. Pin tumbler locking device.

Images