JP6121880B2 - Key conversion type lock - Google Patents

Description

  The present invention relates to a key conversion type lock that is used in a locking device for a game machine such as a slot machine or a pachinko machine and can change an unlock key by changing a key code.

  Conventionally, as a locking device of a pachinko machine, a connecting rod is slidably arranged inside the base frame body, and a hook member is connected to the connecting rod and can be tilted at the upper and lower portions of the support plate of the base frame body. A cam plate that is pivotally supported and fixed to an intermediate portion of the mounting plate of the base frame body so that the cylinder lock is inserted inward from a hole provided in the mounting plate, and engages with a connecting rod at the tip of the locking shaft. The locking device of the structure to which is attached is used.

  This type of locking device is attached to the inside of the front frame, and a receiving metal fitting to which the hook member is locked is attached at a corresponding position in the main body frame. In the locked state, when the unlocking key is inserted into the cylinder lock and turned, the cam plate attached to the lock shaft is moved, and the cam plate engages with the connecting rod during the rotation to move it upward or downward. The upper and lower eaves members are tilted by the movement of the connecting eaves and disengaged from the metal fittings provided on the main body frame side, and unlocked.

  This type of locking device for pachinko machines is often equipped with a key conversion type lock that can convert the unlocking key as a cylinder lock, and the key conversion type lock has the same external shape as a normal cylinder lock. An operation knob for a reset pin for operation during key conversion operation is provided on the back side of the key conversion lock.

  The key conversion type lock generally includes a cylindrical outer cylinder having the same size as that of a normal cylinder lock, an inner cylinder rotatably fitted inside the outer cylinder, and an inner cylinder of the inner cylinder. An output shaft attached to the tip so as to be engageable, and the inner cylinder and the outer cylinder each have a plurality of through holes perpendicular to the axial direction, and the inner cylinder through hole and the outer cylinder through hole are Each is drilled at a communicable position. A reset through hole is formed between the inner cylinder and the output shaft, and a reset pin is inserted into the reset through hole so as to be movable by an operation knob to engage the output shaft and the inner cylinder. In addition, a drive pin, a cord setting spacer, and a base pin are urged inward by a coil spring and inserted into the plurality of through holes of the inner cylinder and the outer cylinder, respectively.

  When converting the key, the current unlocking key is inserted into the keyhole, and the key is turned 180 degrees with the reset operation knob pressed, and the key is removed from the keyhole. Next, a new key is inserted into the keyhole, and the key is rotated 180 degrees so as to return to the original position. By this operation, the number of code setting spacers located in the through holes of the inner cylinder and the outer cylinder is changed from the previous code, and the key code for unlocking the lock is changed to a code for a new key. The unlock key of the lock is converted to a new key.

  By the way, the above-mentioned key conversion type lock is mass-produced with the same size and shape as a general cylinder lock. In recent pachinko machines and slot machines, the thickness of the front frame or the front door to which the locking device is attached. However, it tends to be formed thicker than the conventional one so as to have a high decorative function.

  For this reason, in the case of a key conversion type lock having the same size as a conventional general-purpose cylinder lock, the length of the key conversion type lock is the length of the door when attached directly to the front side of the mounting plate of the base frame of the locking device. Since it is shorter than the thickness, when the locking device is mounted inside the front frame or the front door, the position of the keyhole does not appear on the surface of the front frame (front door). Then, the thing of the structure where the cover and the connection axis | shaft were assembled | attached to the lock | rock was examined so that the length from the keyhole surface of a key conversion type lock | rock to the lock shaft front-end | tip could be lengthened.

  However, as described above, the key conversion type lock has an operation knob for a reset pin that is operated when performing the key conversion operation on the back surface of the lock, so that it has substantially the same shape as a general-purpose cylinder lock. If the cover and the connecting shaft are simply assembled on the back side of the key conversion type lock, the operation knob is hidden by the cover, and it is difficult to operate the operation knob for the reset pin during the key conversion operation.

Japanese Patent No. 4516877

  Therefore, according to Patent Document 1, the present applicant can use the existing conversion type lock from the keyhole surface to the lock shaft with a longer length, and the operation shaft provided in the extension block around the shaft. We proposed a key-converting lock that can be easily operated by turning the key.

  Although this key conversion type lock can perform the key conversion operation by rotating the tip of the operation shaft exposed from the end of the extended block, the conversion operation is performed by twisting the small diameter tip of the operation shaft. Due to the structure, there is a difficulty in operation, and there has been a demand for a key conversion type lock that can be easily converted.

  The present invention has been made in view of the above points, and even with a lock to which an extension block is added, the key conversion operation can be performed by simply pressing or sliding the knob of the operation shaft. An object of the present invention is to provide a key conversion type lock that can be easily performed.

In order to achieve the above object, a key conversion type lock according to the present invention includes an outer cylinder having a flange portion at the end, an inner cylinder rotatably fitted inside the outer cylinder, A key-converting lock attached to the tip of the extended block, with a conversion-type lock body provided with a lock shaft disposed inside the outer cylinder so as to be engageable with the inner cylinder in the vicinity of the end There,
A plurality of through holes are formed in the inner cylinder and the outer cylinder of the conversion type lock main body at right angles to the axial direction, and the through holes of the inner cylinder and the outer cylinder are respectively drilled at corresponding positions where they can communicate with each other, A reset through hole is formed between the inner cylinder and the lock shaft, and a reset pin is inserted into the reset through hole to engage the lock shaft and the inner cylinder, and the reset pin is released from engagement. An operation knob is movably provided at the end of the convertible lock body, and a drive pin, a cord setting spacer and a base pin are urged and inserted by a coil spring into the plurality of through holes of the inner cylinder and the outer cylinder,
The extension block is fixed to the back surface of the flange portion of the conversion type lock body, and a mounting flange having a screw hole is provided at a terminal portion of the extension block,
A shaft recess is formed in the extended block, and an operation shaft recess is formed adjacent to the shaft recess,
The connecting shaft is rotatably held by inserting the connecting shaft into the shaft recess and fitting the cover body into the shaft recess from above the connecting shaft.
The operating shaft is fitted in the operating shaft recess so as to be slidable in the axial direction, and when the operating shaft is pressed and slid in the vicinity of the tip of the operating shaft, the operation is performed by pressing the tip. An actuating member that moves in the direction of operation of the knob is provided,
The operating member is provided with an engaging projection that protrudes from the extended block and can be engaged with the operation knob, and is provided with a knob at the end of the operating shaft that protrudes from the extended block to the back side.
The operation shaft is slid in the axial direction by pushing the knob, and the operating member is moved to perform resetting for key conversion.

  According to the present invention, it is possible to easily perform resetting for key conversion by a simple operation by simply pressing the knob portion of the operation shaft provided in the extended block.

  Here, in the key conversion type lock, the operation member is pivotally supported by a part of the extended block, and a tip end of the operation shaft is linked to the operation member, and the operation shaft is pressed and slid. When the actuator is moved, the actuating member rotates so as to move the engaging convex portion in the operation direction of the operation knob, and the operation shaft can be provided with a return spring that biases in the return direction.

  Also, here, in the key conversion type lock, an inclined surface is provided at a tip of the operation shaft, and an inclined portion with which the inclined surface abuts is provided on the operating member, and the operating member is provided with the operating member. A return spring that biases in the return direction can be provided.

Furthermore, another key conversion type lock of the present invention includes an outer cylinder provided with a flange portion at the end, an inner cylinder that is rotatably inserted inside the outer cylinder, and an end portion of the inner cylinder. A key-converting lock in which a convertible lock body provided with a lock shaft disposed inside the outer cylinder so as to be engageable with the inner cylinder is attached to the distal end portion of the extended block,
A plurality of through holes are formed in the inner cylinder and the outer cylinder of the conversion type lock main body at right angles to the axial direction, and the through holes of the inner cylinder and the through holes of the outer cylinder are respectively drilled at corresponding positions where they can communicate with each other. A reset through-hole is formed between the inner cylinder and the lock shaft, and a reset pin is inserted into the reset through-hole to engage the lock shaft and the inner cylinder, thereby releasing the engagement of the reset pin. For this purpose, an operation knob is movably provided at the end of the conversion lock body, and a drive pin, a cord setting spacer, and a base pin are urged by a coil spring in the plurality of through holes of the inner cylinder and the outer cylinder, respectively. Inserted,
The extension block is fixed to the back surface of the flange portion of the conversion type lock body, and a mounting flange having a screw hole is provided at a terminal portion of the extension block,
A shaft recess is formed in the extended block, and an operation shaft recess is formed adjacent to the shaft recess,
A connection shaft is inserted into the shaft recess, and the connection shaft is rotatably held by fitting a cover body into the shaft recess from above the connection shaft.
The operation shaft is pivotally supported by the operation shaft recess through an intermediate support shaft, and an operating member is pivotally supported on the distal end side of the operation shaft so as to be rotatable with respect to the extended block. The tip of the operating shaft is linked to the actuating member,
The operating member is provided with an engaging projection that protrudes from the extending block and can be engaged with the operation knob, and a knob that protrudes from the extending block to the back side is provided at the end of the operating shaft. ,
The operating shaft is provided with a return spring for urging in the return direction,
By the slide operation of the knob, the operation shaft is swung about the support shaft, the operating member is swung, the engagement convex portion moves the operation knob, and resets for key conversion. It is characterized by that.

  Here, in the key conversion type lock, the extended block is formed by bending a flange mounting portion to which the flange portion is fixed and a mounting flange to be fixed to a mounted portion of the locking device into a substantially U shape by a metal plate. And a synthetic resin block inner body fitted into the block outer body, and a screw for fixing the flange portion to the flange mounting portion of the block outer body. A hole is provided, and the mounting flange is provided with a screw hole for fixing to the mounted portion, and the shaft inner body is provided with the shaft recess and the operation shaft recess.

  According to this invention, since the outer block main body of the extended block is formed from a substantially U-shaped metal plate, the flange mounting portion to which the flange portion is fixed, and the mounting flange to be fixed to the mounted portion of the locking device, Can be made strong and sufficiently reinforced against the load applied to the cylinder lock due to fraud etc., so that a strong key conversion type lock can be obtained.

  Further, in the key conversion type lock, when the key is inserted into the key hole of the inner cylinder of the conversion type lock body and the inner cylinder is rotated, the torsion that urges the inner cylinder in a direction to return to the original position. A spring can be fitted on the connecting shaft.

  Further, in the key conversion type lock, a connecting portion having a modified cross section is provided at the tip of the connecting shaft, and a connecting member having a connecting hole having a deformed cross section is fitted to the tip of the lock shaft of the conversion type lock body. The connecting portion at the tip of the connecting shaft fits into the connecting hole of the connecting member, and the connecting shaft can be connected to the lock shaft.

  According to the key conversion type lock of the present invention, even with a lock with an extended block, the key conversion operation can be easily performed by simply pressing or sliding the knob portion of the operation shaft. it can.

It is a front view of the key conversion type lock which shows one Embodiment of this invention. It is a left view of the lock. It is a right view of the lock. It is a rear view of the lock. It is a bottom view of the lock. (A) is the perspective view seen from the front side, (b) is the perspective view seen from the back side. It is an exploded perspective view in the state where a conversion type lock main part, a cover body, etc. were removed. It is a disassembled perspective view of an extending block. It is a principal part disassembled perspective view of an extending block. FIG. 5 is a left side view of a block inner body, a connection shaft, an operation shaft, and the like showing an internal structure. It is a left view of the locking device which attached the key conversion type lock. It is a right view of the locking device which attached the key conversion type lock. It is a front view of the locking device which attached the key conversion type lock. It is a rear view of the locking device. It is a left view with a section which shows the use state of the locking device. It is a disassembled perspective view of the state which removed the conversion type lock main body, cover body, etc. of 2nd Embodiment. It is a disassembled perspective view of the extension block of the embodiment. It is a principal part disassembled perspective view of the extension block. FIG. 5 is a left side view of a block inner body, a connection shaft, an operation shaft, and the like showing an internal structure. It is a disassembled perspective view of the state which removed the conversion type lock main part, cover body, etc. of 3rd Embodiment. It is a disassembled perspective view of the extension block of the embodiment. It is a principal part disassembled perspective view of the extension block. FIG. 5 is a left side view of a block inner body, a connection shaft, an operation shaft, and the like showing an internal structure.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1-6 has shown the external appearance of the key conversion type lock. This key conversion lock 1 is basically a key conversion lock in which a conversion lock body 2 of a cylinder lock capable of changing a key code by changing a key code is attached to the end of an extension block 10. Yes, the extended block 10 is fixed to the back side of the flange portion 7 of the convertible lock body 2. In the extended block 10, the connecting shaft 15 is rotatably connected to the end of the lock shaft 5 of the convertible lock body 2, and the operation shaft 18 is connected to the operation knob 6 of the convertible lock body 2. The operation knob 6 is inserted so as to be engageable and push-slidable, and is configured to move the operation knob 6 by a push operation of the operation shaft 18.

  The conversion-type lock body 2 includes a cylindrical outer cylinder 3 having the same size as a general-purpose cylinder lock, an inner cylinder 4 that is rotatably fitted inside the outer cylinder 3, and an inner cylinder 4. A lock shaft 5 disposed in the outer cylinder so as to be engageable with the tip is configured. The inner cylinder 4 and the outer cylinder 3 are not shown in the figure, but a plurality of through holes each have a shaft. At right angles to the direction, the through hole of the inner cylinder 4 and the through hole of the outer cylinder 3 are formed at positions where they can communicate with each other.

  Further, the outer cylinder 3 is provided with a spacer supply through hole for supplying a code setting spacer. The spacer supply through hole is provided at an angular position of 180 degrees with respect to the through hole. A drive pin, a cord setting spacer, and a base pin are urged inward by a coil spring into the through holes of the inner cylinder 4 and the outer cylinder 3, respectively, and the drive pins and cords are inserted into the spacer supply through holes. A setting spacer is inserted together with the coil spring.

  Further, a reset hole is formed between the inner cylinder 4 and the lock shaft 5, and a reset pin is inserted into the reset hole movably by the operation knob 6 in order to engage the lock shaft 5 and the inner cylinder 4. The As shown in FIGS. 7 and 8, the operation knob 6 for conversion operation protrudes from a cover plate attached so as to cover the back surface of the flange portion 7 of the conversion lock body 2, and can be moved inward (the lock shaft 5 side). It is arranged. Holes for insertion of the mounting screws 24 are formed at both ends of the flange portion 7. As shown in FIG. 7, the two mounting screws 24 are inserted into the holes of the flange portion 7 and screwed into the screw holes 13 c provided in the flange mounting portion 13 b of the block outer body 13. The extending block 10 is fixed to the back surface.

  The conversion lock body 2 has a reset pin inserted into a reset hole formed between the inner cylinder 4 and the lock shaft 5 together with a coil spring, and the reset pin resists the biasing force of the coil spring by the operation knob 6. When pushed in, the end face of the reset pin coincides with the boundary line between the inner cylinder 4 and the lock shaft 5, and in this state, only the inner cylinder 4 (lock shaft 5) is turned by turning the unlocking key inserted into the inner cylinder 4. It is a structure that can be rotated). When the operation knob 6 is not operated, the reset pin is located across the boundary line between the inner cylinder 4 and the lock shaft 5, and the inner cylinder 4 and the lock shaft 5 are connected by the reset pin and rotate together.

  When converting the unlocking key, the current unlocking key is inserted into the keyhole of the convertible lock body 2, and the reset operation knob 6 is pushed to the reset position, that is, inward and moved, and then the key 180 is moved. Rotate it. At this time, only the inner cylinder 4 is rotated 180 degrees, the through hole in the inner cylinder 4 is in communication with the spacer supply through hole in the outer cylinder 3, and the code setting spacer of each through hole is in the inner cylinder. Collect in the through hole and the spacer supply through hole.

  Then, when the current unlocking key is pulled out and a new key is inserted into the key hole, the cord setting spacer changes from the spacer supply through hole to the through hole of the inner cylinder 4 according to the depth of the groove of the new key. The key code is changed to a code corresponding to the new key. In this state, if the key is rotated 180 degrees so as to return to the original position, the reset pin returns to the position where the inner cylinder 4 and the lock shaft 5 are connected, and the inner cylinder 4 and the lock shaft 5 rotate integrally. The unlock key is converted into a new key.

  The extension block 10 is fixed to the back side of the flange portion 7 in the conversion type lock body 2 having the above-described configuration by the mounting screw 24. As shown in FIGS. 7, 8, and 9, the extension block 10 includes a flange attachment portion 13 b to which the flange portion 7 of the conversion lock body 2 is fixed and an attachment flange 13 a to be fixed to the attached portion of the locking device. A block outer body 13 formed by bending a metal plate into a substantially U shape and a hard synthetic resin block inner body 16 fitted into the block outer body 13 are configured.

  As shown in FIG. 9, the flange mounting portion 13b of the block outer body 13 has a screw hole 13c for fixing the flange portion 7, an opening portion 13d for inserting the operation knob 6 inside, and a lock shaft 5 on the inside. An opening 13e is provided for insertion. On the other hand, on the mounting flange 13a, as shown in FIG. 9, a screw hole 13f for fixing to the mounted portion, an opening portion 13g for projecting the knob portion 18b of the operation shaft 18, and a lock shaft end portion 15b project. An opening 13h is provided for this purpose.

  Furthermore, a screw hole 13 i for a mounting screw 23 for integrally mounting the cover body 17 and the block inner body 16 is formed in the plate portion of the block outer body 13 made of a metal plate, and the two mounting screws 23 The cover body 17 and the block inner body 16 are fastened and fixed to the block outer body 13 together.

Further, in the block main body 16 formed of hard synthetic resin, a shaft recess 11 for housing the connecting shaft 15 and an operation shaft recess 12 for housing the operation shaft 18 are provided along the longitudinal direction. Further, as shown in FIG. 9, an operating member recess 12a is provided on the distal end side of the operating shaft recess 12, and the operating member 19 is accommodated in the operating member recess 12a so as to be swingable about the support shaft 19b. As described above, since the outer block body 13 of the extended block 10 is formed from a substantially U-shaped metal plate, it is fixed to the flange mounting portion 13b to which the flange portion 7 is fixed and the mounting portion of the locking device. The mounting flange 13a to be formed can be firmly formed, whereby the load applied to the convertible lock body 2 due to fraud etc. is held by the flange mounting portion 13b of the block outer body 13 and is reinforced and strengthened. It is a key conversion type lock. Further, since the flange portion 7 of the conversion lock body 2 is attached by screwing the tip of the mounting screw 24 into the screw hole 13c of the flange attachment portion 13b of the metal plate, the conversion lock body 2 and the extension block 10 are firmly fixed. Is done.

  As shown in FIGS. 7 and 8, the operation shaft 18 slidably inserted into the operation shaft recess 12 moves the operation knob 6 of the convertible lock body 2 by the pushing operation and performs a key conversion operation. As shown in FIG. 9, it is formed in a strip shape. A connecting shaft 18a protrudes laterally from the tip of the operating shaft 18, and the connecting hole 19c of the actuating member 19 is fitted to the connecting shaft 18a to be linked. The actuating member 19 swings about the support shaft 19b.

  The end of the operating shaft 18 becomes a knob 18b, protrudes from the opening 13g of the mounting flange 13a to the back side, and the operator 18 can be pushed by a predetermined stroke by pressing the knob 18b of the operating shaft 18. This makes it possible to easily perform key conversion operations. Further, a return spring 20 that urges the operation shaft 18 in the return direction (back side) is attached to an intermediate portion of the operation shaft 18 so that the operation shaft 18 is pushed in and then returned to the original position by the spring force. It has become.

  As shown in FIGS. 9 and 10, the operating member 19 linked to the distal end of the operating shaft 18 has a support shaft 19 b projecting laterally at the lower part on the back side thereof, and an operating knob 19 is provided at the distal end of the operating member 19. An engaging convex portion 19 a that engages with 6 is projected. The actuating member 19 has its support shaft 19b inserted into a shaft hole provided in the actuating member recess 12a in the main body 16 in the block. As shown in FIG. The key conversion operation can be performed by depressing the operation knob 6 of the conversion lock body 2. With the above configuration, as shown in FIG. 10, when the knob 18a of the operating shaft 18 is pushed by a predetermined stroke, the operating member 19 linked to the tip of the operating shaft 19 swings in the clockwise direction of FIG. 10 about the support shaft 19b. Then, the engaging convex portion 19a at the tip moves in the same direction, and the operation knob 6 of the convertible lock body 2 is pushed by the engaging convex portion 19a to move downward, and the key can be converted.

  A shaft recess 11 is formed along the longitudinal direction at the approximate center of the inner block body 16 of the extended block 10, and the end of the lock shaft 5 of the conversion lock body 2 is formed inside the shaft recess 11. The connecting shaft 15 to be connected is rotatably fitted and accommodated. As shown in FIG. 7, a connecting member 22 having a connecting hole 22a having a modified cross-section is formed at the distal end portion of the connecting shaft 15, and a connecting hole 22a is formed in the connecting portion 15a. They are connected by fitting. As shown in FIG. 7, the connecting member 22 is fixed with a screw 25 to the tip of the lock shaft 5 that protrudes to the back side of the convertible lock body 2.

  As shown in FIG. 9, a lock shaft end portion 15 b having the same shape as the lock shaft 5 is provided at the end of the connecting shaft 15, and the lock shaft end portion 15 b protruding outward from the mounting flange 13 a of the extension block 10 is provided. As shown in FIG. 7, the cam member 8 is fixed by a screw 26. Further, as shown in FIGS. 8 and 9, a torsion spring 21 is externally fitted to the intermediate portion of the connecting shaft 15, and the connecting shaft 15 is always in the original rotation position by the urging force of the torsion spring 21. It comes to return.

  An engagement piece 15 c (FIG. 9) is provided at an intermediate portion of the connection shaft 15, and the torsion spring 21 is attached to the connection shaft 15 so that the engagement piece 15 c is engaged between both leg portions of the torsion spring 21. It is fitted. Both leg portions of the torsion spring 21 engage with the inside of the block inner body 16. Thereby, when the key conversion type lock 1 is normally used, the lock shaft 5 is rotated by the key operation, and when the connecting shaft 15 is rotated accordingly, the torsion spring 21 returns to the original angular position. Be energized by. For this reason, if the user turns off the key turning force, the connecting shaft 15, the lock shaft 5, and the inner cylinder 4 are returned to their original positions by the urging force of the torsion spring 21.

  When the connecting shaft 15 and the operating shaft 18 are inserted into the concave portion 11 for the shaft and the concave portion 12 for the operating shaft, an opening is formed on the left side as shown in FIG. 7, and the opening is closed. The cover body 17 is fitted. The cover body 17 is formed of a hard synthetic resin, and is formed in the opening of the extension block 10 so as to rotatably hold the connecting shaft 15 in the shaft recess 11 and the operation shaft 18 in the operation shaft recess 12. It is fitted and fixed by fastening screws 23.

  Further, as shown in FIG. 8, the cover body 17 is provided with an engaging portion 17 a that protrudes inward from the rear side end portion. When the cover body 17 is attached, the engaging portion 17a is fitted into a notch provided in the attachment flange 13a of the block outer body 13, and the screw 17b is screwed into the cover body 17 from the flange attachment portion 13b side on the front side. The cover body 17 is firmly fixed in place. Further, the tip of the mounting screw 23 for attaching the cover body 17 to the block inner body 16 is screwed into a screw hole 13i provided in the outer block body 13 made of a metal plate and is fastened and fixed by joint fastening. Even if the block inner body 16 is made of a synthetic resin, the cover body 17 can be firmly fixed to the metal block outer body 13.

  The key conversion type lock 1 configured as described above is attached to a mounting plate 32 of a base frame 31 of a locking device of a slot machine, for example, as shown in FIGS.

  As shown in FIGS. 11 to 15, the locking device includes a vertically long base frame body 31 formed by pressing a metal plate, and the base frame body 31 includes an attachment plate 32 bent into a substantially L-shaped cross section. The support plate 33 is provided, and the end of the mounting plate 32 on the side opposite to the support plate is bent outward along the longitudinal direction with a short width, and the mounting plate 32 has a plurality of holes for mounting the key conversion lock 1 and a plurality of holes. The fixing hole is drilled.

  As shown in FIGS. 11 and 12, wide portions are formed in the vicinity of the upper and lower portions of the support plate 33 bent at a substantially right angle with respect to the mounting plate 32, and the flange members 35, 36 are rotated by the pivots 37, 38 in the portions. It is pivotally supported. The eaves members 35 and 36 are formed in a hook shape having tip portions thereof having inclined surfaces.

  As shown in FIG. 12, the upper and lower flange members 35 and 36 are stationary in a state of projecting in a substantially horizontal lateral direction with respect to the support plate 33 in a vertical posture. The support plate 33 is provided in a state where a part of the support plate 33 is cut and raised inward at a position where it can contact the lower side of the base portion of the upper flange member 35. Accordingly, the base portions of the flange members 35 and 36 are urged downward via the connecting rod 34 so that the base portions thereof are in contact with the contact support portion 33a in a state of projecting substantially horizontally. Quiesce.

  And the eaves members 35 and 36 are pivotally supported by the pivots 36 and 37 so that they can tilt downward from such a horizontal posture. A band-shaped connecting rod 34 is slidably disposed along the inner side of the support plate 33 of the base frame 31, and the connecting rod 34 is connected to the end portions of the upper and lower flange members 35, 36 via connecting shafts 39, 40. The upper and lower ends are connected. Therefore, when the connecting rod 34 slides upward, the flange members 35 and 36 tilt to the lower unlocking position. A coil spring 47 for urging the connecting rod 34 downward (locking direction) is mounted between the connecting rod 34 and a switch operating rod 45 described later.

  As shown in FIG. 12, a contact portion 33 b is provided in the wide portion of the support plate 33 that pivotally supports the flange members 35, 36 at a rear position corresponding to the locking recess of the hook-shaped flange members 35, 36. It has been. As shown in FIG. 15, the abutment portion 33b is such that the front door 51 of the game machine is closed with respect to the cabinet 50, and the flange members 35 and 36 are attached to the plate-like locking portions 54 and 55 of the receiving bracket 53 on the main body frame side. When locked, the plate-shaped locking portions 54 and 55 can be brought into contact with the contact portion 33b, and when the front door 51 is lifted upward by an illegal act, the eaves members 35 and 36 tilt downward. This prevents the unauthorized unlocking.

  A part of the mounting plate 32 is cut and raised inward so that a chevron-shaped guide support portion 32 a guides the connecting rod 34 near the upper portion, the middle portion, and the lower portion of the mounting plate 32. The connecting rod 34 is disposed between the guide support portion 32a and the support plate 33, and is guided by the guide support portion 32a and the support plate 33 so as to be slidable up and down. Further, as shown in FIG. 12, a long hole 34 b is formed in a part of the connecting rod 34, a guide pin 42 is inserted into the long hole 34 b and fixed to the support plate 33, and the connecting rod 34 is fixed by the guide pin 42. Guided slidably in the longitudinal direction. Further, an engaging portion 34 c that can be engaged with the engaging convex portion of the cam member 8 is formed at the intermediate portion of the connecting rod 34.

  Further, as shown in FIGS. 13 and 14, a wide portion for attaching the key conversion type lock 1 is formed in the intermediate portion of the mounting plate 32, an irregular hole is formed in the wide portion, and the key conversion type is formed in the hole. The lock 1 is inserted from the back side, the mounting flange 13a of the extending block 10 is screwed to the inside of the mounting plate 32, and the key conversion type lock 1 is projected and mounted on the mounting plate 32. Further, as shown in FIGS. 12 and 14, a switch operating rod 45 is slidably disposed between the support plate 33 and the connecting rod 34. When the cam member 8 is turned counterclockwise by the key-converting lock 1, the switch operating rod 45 is configured to engage with the cam member 8 and slide downward to turn the operation switch 49 on and off. The A coil spring 47 is hung between the connecting rod 34 and the switch operating rod 45. The spring force of the coil spring 47 biases the connecting rod 34 downward, and the switch operating rod 45 is biased upward.

  The cam member 8 is fixed to the tip of the lock shaft end portion 15 b of the connecting shaft 15 of the key conversion type lock 1 with a screw 26. As shown in FIG. 14, the cam member 8 is provided with two engaging convex portions, and the corresponding portion of the connecting rod 34 is provided with an engaging portion 34 c that can be engaged with one engaging convex portion, The switch operating rod 45 is provided with an engagement recess that can be engaged with the other engagement projection. The cam member 8 engages with the connecting rod 34 when the key of the key conversion type lock 1 is turned to the right and moves the connecting rod 34 upward, and the cam member 8 switches the switch operating rod when the key is turned counterclockwise. 45 is engaged and slid downward.

  As shown in FIG. 14, a non-contact type operation switch 49 such as a transmission type photoelectric switch or a proximity switch is mounted on the mounting plate 32 at a position facing the lower end of the switch operating rod 45, and a key conversion type lock is provided. When 1 is turned to the left and the switch operating rod 45 moves downward, its end is detected and a signal such as a reset signal is output.

  A synthetic resin roller 48 is rotatably supported on the wide portion below the support plate 33. The roller 48 supports the front door 51 by rolling on a roller receiver 57 provided on the receiving metal 53 when the front door 51 is closed. Further, as shown in FIG. 12, the side edge portion of the mounting plate 32 opposite to the support plate 33 is bent at a right angle to form a side wall 32b, thereby reinforcing the base frame body 31, A wire or the like is prevented from entering the cam member 8 or its engaging portion.

  As shown in FIG. 15, the locking device configured in this manner is mounted with a mounting plate 32 of a base frame 31 fixed vertically inside a front door 51 of a game machine, for example, a slot machine. The receiving metal fitting 53 is attached to the corresponding position on the 50 side.

  As shown in FIG. 15, the receiving metal 53 is formed by projecting plate-like locking portions 54, 55 on the upper and lower portions of the vertically long board, and the plate-like locking portions 54, 55 are formed on the locking device side. It arrange | positions in the opposing position of the members 35 and 36. FIG. Further, a roller receiver 57 is provided below the plate-like locking portion 55 of the receiving metal 53. In addition, a gap cover portion is provided on the side portion of the metal fitting 53 as a side edge portion along the side edge of the long substrate.

  When the front door 51 is closed with respect to the cabinet 50 for locking, first, the inclined surfaces of the flange members 35, 36 come into contact with the end portions of the plate-like locking portions 54, 55 of the receiving metal 53, When 36 is tilted downward and the locking recesses of the flange members 35 and 36 are engaged with the plate-shaped locking portions 54 and 55, the flange members 35 and 36 are tilted and returned upward as shown in FIG. It becomes locked.

  On the other hand, when the unlocking key is inserted into the key conversion type lock 1 and turned to the right in order to open the front door 51, the lock shaft 5 and the cam member 8 of the conversion type lock body 2 are rotated in the same direction. Due to the engagement with the cam member 8, the connecting rod 34 moves upward against the urging force of the coil spring 47, whereby the upper and lower flange members 35, 36 tilt downward, and the cabinet 50 side The engagement with the plate-like locking portions 54 and 55 of the receiving metal 53 is released, and the unlocked state is established.

  On the other hand, when the game machine is reset, when the unlocking key is inserted into the key conversion type lock 1 and turned to the left, the lock shaft 5 and the cam member 8 are rotated in the same direction, and the engagement with the cam member 8 is performed. Accordingly, the switch operating rod 45 moves downward against the urging force of the coil spring 47. At this time, the operation switch 49 detects the lower end of the switch operating rod 45 and outputs a signal, and this signal is sent as a reset signal.

  On the other hand, when converting the unlocking key of this locking device into a new key, the front door 51 is opened using the current unlocking key, and in that state, a finger is inserted inside the front door 51, The knob 18b of the operation shaft 18 linked to the operation knob 6 for reset located on the back surface of the extended block 10 inside the base frame 31 is pushed. The pushing of the knob 18b can be performed with a slight stroke as shown in FIG.

  At this time, as shown in FIG. 10, due to the sliding of the operation shaft 18 in the axial direction, the actuating member 19 linked to the tip thereof swings around the support shaft 19b in the clockwise direction of FIG. The engaging projection 19a is swung downward, and the operation knob 6 of the convertible lock body 2 moves downward, that is, to the reset side. In this state, the unlock key is rotated 180 degrees. By the operation of the operation shaft 18 and the operation knob 6, the lock reset pin is pushed, the engagement between the inner cylinder 4 and the lock shaft 5 is released, and only the inner cylinder 4 is rotated 180 degrees. At this time, the through holes in the inner cylinder 4 are in communication with the spacer supply through holes in the outer cylinder 3, and the code setting spacers of the respective through holes gather in the inner cylinder through holes and the spacer supply through holes.

  Next, when the current unlocking key is pulled out and a new key is inserted into the key hole, the cord setting spacer moves from the spacer supply through hole to the through hole of the inner cylinder 4 according to the depth of the groove of the new key. The key code is changed to a code corresponding to the new key. In this state, if the key is rotated 180 degrees so as to return to the original position, the reset pin returns to the position where the inner cylinder 4 and the lock shaft 5 are connected, and the inner cylinder 4 and the lock shaft 5 rotate integrally. The unlock key is converted into a new key.

  As described above, even if the key conversion type lock 1 has a long shape by using a general-purpose conversion lock and attaching the extension block 10 to the back surface of the flange portion, the operation shaft 18 is provided on the back surface of the extension block 10. Since the knob portion 18b is protruded so as to be able to be pushed in, the unlocking key can be converted by a simple operation by simply pressing the knob portion 18b. Therefore, even with a gaming machine having a thick front door such as a slot machine, a locking device can be manufactured at low cost using a general-purpose conversion-type lock.

  Also, not only the locking device that locks the thick front door of the slot machine, but also the thick front frame in recent pachinko machines, the locking device having the above-mentioned key conversion type lock can be used to easily convert the unlocking key. Can do.

  16 to 19 show a key conversion type lock according to the second embodiment. In addition, about the part similar to the said embodiment, the same code | symbol as the above is attached | subjected to a figure, and the description is abbreviate | omitted. The extended block 60 of the second embodiment uses an operating shaft 68 provided with an inclined surface 68a at the tip, and an operating member provided with an inclined surface 69b on the tip side facing the inclined surface 68a of the operating shaft 68. 69 is slidably disposed in the lower part of FIG.

  As shown in FIGS. 16 to 19, the extension block 60 has a flange mounting portion 63 b to which the flange portion 7 of the conversion lock body 2 is fixed and a mounting flange 63 a to be fixed to the mounted portion of the locking device. A block outer body 63 formed by bending a plate into a substantially U-shape and a hard synthetic resin block inner body 66 fitted into the block outer body 63 are configured.

  As shown in FIG. 18, the flange mounting portion 63b of the block outer body 63 has a screw hole 63c for fixing the flange portion 7, an opening 63d for inserting the operation knob 6 inside, and a lock shaft 5 inside. An opening 63e for insertion is provided. On the other hand, as shown in FIG. 18, the mounting flange 63a has a screw hole 63f for fixing to the mounted portion, an opening 63g for protruding the knob 68b of the operation shaft 68, and a lock shaft end portion 15b. An opening 63h is provided for this purpose. Further, a screw hole 63 i for the mounting screw 23 for integrally mounting the cover body 17 and the block inner body 66 is formed in the plate portion of the block outer body 63 made of a metal plate, and the two mounting screws 23 are used. The cover body 17 and the block inner body 66 are fixed to the block outer body 63.

  Further, as shown in FIG. 18, the cover body 17 is provided with an engaging portion 17 a that protrudes inward from the rear side end portion. When the cover body 17 is attached, the engaging portion 17a is fitted into a notch provided in the attachment flange 63a of the block outer body 63, and the screw 17b is screwed into the cover body 17 from the flange attachment portion 63b on the front side. The cover body 17 is firmly fixed in place. Further, the tip of the mounting screw 23 for attaching the cover body 17 to the block inner body 66 is screwed into a screw hole 63i provided in the block outer body 63 made of a metal plate and is fastened and fixed by joint fastening. Even when the block inner body 66 is made of synthetic resin, the cover body 17 can be firmly fixed to the metal block outer body 63.

  On the other hand, a shaft recess 61 for accommodating the connecting shaft 15 and an operation shaft recess 62 for accommodating the operation shaft 68 are provided along the longitudinal direction in the main body 66 in the block which is formed of hard synthetic resin. Further, as shown in FIG. 18, an operating member recess 62a for slidably storing the operating member 69 is provided on the distal end side of the operation shaft recess 62.

  As described above, since the outer block main body 63 of the extended block 60 is formed from a substantially U-shaped metal plate, it is fixed to the flange mounting portion 63b to which the flange portion 7 is fixed and the mounted portion of the locking device. The mounting flange 63a can be formed firmly, whereby the load applied to the conversion lock body 2 due to fraud etc. is held by the flange mounting portion 63b of the block outer body 63 and reinforced, and the key conversion is reinforced. It is a formula lock. Further, since the flange portion 7 of the conversion type lock body 2 is attached by screwing the tip of the mounting screw 24 into the screw hole 63c of the flange attachment portion 63b of the metal plate, the conversion type lock body 2 and the extension block 60 are firmly fixed. can do.

  As shown in FIGS. 16 and 17, the operation shaft 68 slidably inserted into the operation shaft recess 62 is a shaft for moving the operation knob 6 of the convertible lock body 2 by the pushing operation and performing a key conversion operation. As shown in FIG. 18, it is formed in a band plate shape. An inclined surface 68a is formed at the tip of the operation shaft 68, and an operating member 69 is slidably disposed facing the inclined surface 68a. The actuating member 69 is provided with an inclined surface 69 b that abuts on the inclined surface 68 a of the operation shaft 68. Thus, as shown in FIG. 19, when the operation shaft 68 is pushed in, the inclined surface 68a at the tip thereof pushes the inclined surface 69b of the operating member 69, and the operating member 69 slides downward.

  The end of the operating shaft 68 is a knob 68b, which protrudes from the opening 63g of the mounting flange 63a to the back side. By pressing the knob 68b of the operating shaft 68, the operating shaft 68 can be pushed by a predetermined stroke. This makes it possible to easily perform key conversion operations. Further, a return spring 67 is attached to the operating member 69, and when the operating shaft 18 is pushed in and the operating member 69 is lowered, the operating member 69 is returned to its original position by the spring force.

  An engaging convex portion 69 a that engages with the operation knob 6 protrudes from the distal end of the operating member 69. The actuating member 69 is disposed in the actuating member concave portion 62a in the block inner body 66, and is configured to slide the engaging convex portion 69a downward as shown in FIG. A key conversion operation is performed by depressing the operation knob 6. Thus, as shown in FIG. 19, when the knob 68b of the operating shaft 68 is pushed in for a predetermined stroke, the inclined surface 68a of the tip pushes the inclined surface 69b, and the operating member 69 slides downward, and the tip of the tip is engaged. The joint projection 69a moves in the same direction, and the operation knob 6 of the conversion lock body 2 is pushed by the engagement projection 69a to move downward, and the key can be converted.

  As shown in FIG. 16, the extended block 60 having the above configuration is fixed to the flange mounting portion 63 b of the block outer body 63 on the back side of the flange portion 7 of the convertible lock body 2 using screws 24. At that time, the connecting member 22 is attached to the lock shaft 5 by a screw 25, and the connecting portion 15a of the connecting shaft 15 is inserted into the connecting hole 22a, so that the lock shaft 5 and the connecting shaft 15 are connected. The cam member 8 is fixed to the distal end of the lock shaft end portion 15 b of the connecting shaft 15 with a screw 26.

  As shown in FIG. 16, a lock shaft end portion 15b having the same shape as the lock shaft 5 is provided at the end of the connecting shaft 15, and the lock shaft end portion 15b protruding outward from the mounting flange 13a of the extension block 10 is provided. The cam member 8 is fixed by a screw 26. Further, as shown in FIG. 16, a torsion spring 21 is externally fitted to the intermediate portion of the connecting shaft 15, and the connecting shaft 15 always returns to the original rotational position by the urging force of the torsion spring 21. It has become.

  An engaging piece 15 c (FIG. 18) is provided at the intermediate portion of the connecting shaft 15, and the torsion spring 21 is attached to the connecting shaft 15 so that the engaging piece 15 c is engaged between the both leg portions of the torsion spring 21. It is fitted. Both leg portions of the torsion spring 21 engage with the inside of the block inner body 66. Thereby, when the key conversion type lock 1 is normally used, the lock shaft 5 is rotated by the key operation, and when the connecting shaft 15 is rotated accordingly, the torsion spring 21 returns to the original angular position. Be energized by. For this reason, if the user turns off the key turning force, the connecting shaft 15, the lock shaft 5, and the inner cylinder 4 are returned to their original positions by the urging force of the torsion spring 21.

  On the other hand, the key conversion type lock 1 to which the extension block 60 is attached is attached to the front side of the attachment plate 32 of the base frame 31 of the locking device as shown in FIG. The key conversion type lock 1 is attached by fixing the attachment flange 63a to the attachment plate 32 by using the screw hole 13f and the attachment screw so as to be put inside the attachment plate 32 of the base frame 31.

  When converting the unlocking key of the locking device into a new key, the front door 51 is opened using the current unlocking key, and in that state, a finger is inserted inside the front door 51, The knob 68b of the operation shaft 68 linked to the operation knob 6 for reset located on the back surface of the extended block 60 inside the body 31 is pushed. The pushing of the knob 68b can be performed with a slight stroke as shown in FIG.

  At this time, the operating shaft 68 slides rightward in FIG. 19 and the inclined surface 68a pushes the inclined surface 69b, whereby the operating member 69 moves downward in FIG. The operation knob 6 of the conversion lock body 2 is pushed down and moved to the reset side. In this state, the unlocking key inserted into the key hole of the convertible lock body 2 is rotated 180 degrees. By the operation of the operation shaft 68 and the operation knob 6, the lock reset pin is pushed, the engagement between the inner cylinder 4 and the lock shaft 5 is released, and only the inner cylinder 4 rotates 180 degrees. At this time, the through holes in the inner cylinder 4 are in communication with the spacer supply through holes in the outer cylinder 3, and the code setting spacers of the respective through holes gather in the inner cylinder through holes and the spacer supply through holes.

  Next, when the current unlocking key is pulled out and a new key is inserted into the key hole, the cord setting spacer moves from the spacer supply through hole to the through hole of the inner cylinder 4 according to the depth of the groove of the new key. The key code is changed to a code corresponding to the new key. In this state, if the key is rotated 180 degrees so as to return to the original position, the reset pin returns to the position where the inner cylinder 4 and the lock shaft 5 are connected, and the inner cylinder 4 and the lock shaft 5 rotate integrally. The unlock key is converted into a new key.

  As described above, even if the key conversion type lock 1 has a long shape by using a general-purpose conversion lock and attaching the extension block 60 to the back of the flange portion, the operation shaft 68 is provided on the back of the extension block 60. Since the knob 68b is protruded so as to be able to be pushed in, the unlocking key can be converted by a simple operation by simply pressing the knob 68b. Therefore, even with a gaming machine having a thick front door such as a slot machine, a locking device can be manufactured at low cost using a general-purpose conversion-type lock.

  20 to 23 show a key conversion type lock according to the third embodiment. In addition, about the part similar to the said embodiment, the same code | symbol as the above is attached | subjected to a figure, and the description is abbreviate | omitted. In the extended block 70 of the third embodiment, an operation shaft 78 that swings about a support shaft 78c is used, and an operating member 79 is supported at the front end side of the operation shaft 78 so that it can swing about the support shaft 79c. Then, the distal end portion of the operating shaft 78 is linked to the operating member 79 via the connecting shaft 78a. The actuating member 79 is pivotally supported in an actuating member recess 72a provided on the distal end side of the operating shaft recess 72 so as to be swingable up and down around the support shaft 79c. A portion 79a is provided.

  As shown in FIGS. 20 to 23, the extension block 70 is made of a metal by connecting a flange mounting portion 73 b to which the flange portion 7 of the conversion lock body 2 is fixed and a mounting flange 73 a to be fixed to the mounted portion of the locking device. A block outer body 73 formed by bending a plate into a substantially U shape and a hard synthetic resin block inner body 76 fitted into the block outer body 73 are configured.

  As shown in FIG. 22, the flange mounting portion 73b of the block outer body 73 has a screw hole 73c for fixing the flange portion 7, an opening 73d for inserting the operation knob 6 inside, and the lock shaft 5 inside. An opening 73e for insertion is provided. On the other hand, as shown in FIG. 22, a screw hole 73f, an opening 73g for projecting the knob 78b of the operating shaft 78, and a lock shaft end 15b project on the mounting flange 73a. An opening 73h is provided for this purpose. Further, a screw hole 73 i for the mounting screw 23 for integrally mounting the cover body 17 and the block inner body 76 is formed in the plate portion of the block outer body 73 made of a metal plate, and the two mounting screws 23 are used. The cover body 17 and the block inner body 76 are fixed to the block outer body 73.

  Further, as shown in FIG. 21, the cover body 17 is provided with an engaging portion 17 a that protrudes inward at the rear side end portion. When the cover body 17 is attached, the engaging portion 17a is fitted into a notch provided in the attachment flange 73a of the block outer body 73, and the screw 17b is screwed into the cover body 17 from the flange attachment portion 73b side on the front side. The cover body 17 is firmly fixed in place. Furthermore, the tip of the mounting screw 23 for attaching the cover body 17 to the block inner body 76 is screwed into a screw hole 73i provided in the block outer body 73 made of a metal plate, and is fastened and fixed together. Thereby, even if the cover body 17 and the block inner body 76 are made of synthetic resin, the cover body 17 is firmly reinforced and fixed to the metal outer block body 73.

  On the other hand, as shown in FIG. 22, a shaft recess 71 for accommodating the connecting shaft 15 and an operation shaft recess 72 for accommodating the operation shaft 78 are formed in the block main body 76 along the longitudinal direction. Provided. Further, as shown in FIG. 22, an operating member recess 72 a that accommodates the operating member 79 in a swingable manner is provided on the distal end side of the operation shaft recess 72.

  As described above, since the outer block body 73 of the extended block 70 is formed of a substantially U-shaped metal plate, it is fixed to the flange mounting portion 73b to which the flange portion 7 is fixed and the mounted portion of the locking device. The mounting flange 73a can be formed firmly, whereby the load applied to the convertible lock body 2 due to fraud etc. is held by the flange mounting portion 73b of the outer block body 73 and reinforced, a strong key conversion It is a formula lock. Further, since the flange portion 7 of the conversion lock body 2 is attached by screwing the tip of the mounting screw 24 into the screw hole 73c of the flange attachment portion 73b of the metal plate, the conversion lock body 2 and the extension block 70 are firmly fixed. can do.

  As shown in FIGS. 21 and 22, the operation shaft 78 that is swingably inserted into the operation shaft recess 72 moves the operation knob 6 of the convertible lock body 2 when the knob 78 b at the tip is slid. As shown in FIG. 22, the shaft is a shaft that performs a key conversion operation, and is formed in a band plate shape. The intermediate portion is pivotally supported by a support shaft 78c.

  A connecting shaft 78a protrudes from the tip of the operation shaft 78, and the operating member 79 is connected to the tip of the connecting shaft 78a. The actuating member 79 is pivotally supported via a support shaft 79c, and an engaging convex portion 79a is provided at the tip of the actuating member 79, and the engaging convex portion 79a moves up and down by the swinging. Accordingly, as shown in FIG. 23, when the knob 78b of the operating shaft 78 is slid downward, the operating member 79 lowers the engaging projection 79a at the tip via the connecting shaft 78a at the tip. Rocks.

  The knob 78b at the end of the operation shaft 78 projects rearward from the opening 73g of the mounting flange 73a, and when the slide operation is performed so as to push down the knob 78b of the operation shaft 78, the operation member 79 is connected via the connecting shaft 78a. The engaging projection 79a at the tip is lowered. As a result, when the knob 78b at the tip of the operation shaft 78 is slid by a predetermined stroke, the engagement convex portion 79a is lowered by the stroke corresponding thereto, whereby the operation knob 6 of the convertible lock body 2 is moved downward. It is a structure that performs a pressing and key conversion operation. As shown in FIG. 23, when the return spring 77 is attached to the knob 78b side of the operation shaft 78 and the operation shaft 78 is pushed in and the engagement convex portion 79a of the operating member 79 is lowered, the operation is performed by the spring force. It acts to return the shaft 78 and the actuating member 79 to their original positions.

  Thus, as shown in FIG. 23, when the knob 78b of the operating shaft 78 is slid downward by a predetermined stroke, the actuating member 79 lowers the engaging projection 79a at the tip via the connecting shaft 78a at the tip. Thus, the operation knob 6 of the convertible lock main body 2 is pushed down by the engaging convex portion 79a, and the key can be converted.

  As shown in FIG. 20, the extended block 70 having the above configuration is fixed to the flange mounting portion 73 b of the outer block body 73 on the back side of the flange portion 7 of the convertible lock body 2 using screws 24. Is done. At that time, the connecting member 22 is attached to the lock shaft 5 by a screw 25, and the connecting portion 15a of the connecting shaft 15 is inserted into the connecting hole 22a, so that the lock shaft 5 and the connecting shaft 15 are connected. The cam member 8 is fixed to the distal end of the lock shaft end portion 15 b of the connecting shaft 15 with a screw 26.

  Similarly to the above, the key conversion type lock 1 to which the extended block 70 is attached is attached to the front side of the attachment plate 32 of the base frame body 31 of the locking device, as shown in FIG. The key conversion type lock 1 is attached by fixing the attachment flange 73a to the attachment plate 32 using the screw hole 73f and the attachment screw so as to be put inside the attachment plate 32 of the base frame 31.

  When converting the unlocking key of the locking device into a new key, the front door 51 is opened using the current unlocking key, and in that state, a finger is inserted inside the front door 51, The knob portion 78b of the operation shaft 78 linked to the reset operation knob 6 located on the back surface of the extending block 70 inside the body 31 is slid. The slide operation of the knob 78b can be performed with a slight slide width as shown in FIG.

  At this time, the tip of the operation shaft 78 swings upward in the figure, the operating member 79 swings via the connecting shaft 79b, and the engaging convex portion 69a of the tip swings downward, so that the conversion lock body 2 The operation knob 6 is pushed down and moved to the reset side. In this state, the unlocking key inserted into the key hole of the convertible lock body 2 is rotated 180 degrees. By the operation of the operation shaft 78 and the operation knob 6, the lock reset pin is pushed, the engagement between the inner cylinder 4 and the lock shaft 5 is released, and only the inner cylinder 4 is rotated 180 degrees. At this time, the through holes in the inner cylinder 4 are in communication with the spacer supply through holes in the outer cylinder 3, and the code setting spacers of the respective through holes gather in the inner cylinder through holes and the spacer supply through holes.

  Next, when the current unlocking key is pulled out and a new key is inserted into the key hole, the cord setting spacer moves from the spacer supply through hole to the through hole of the inner cylinder 4 according to the depth of the groove of the new key. The key code is changed to a code corresponding to the new key. In this state, if the key is rotated 180 degrees so as to return to the original position, the reset pin returns to the position where the inner cylinder 4 and the lock shaft 5 are connected, and the inner cylinder 4 and the lock shaft 5 rotate integrally. The unlock key is converted into a new key.

  As described above, even if the key conversion type lock 1 has a long shape by using a general-purpose conversion lock and attaching the extension block 70 to the back of the flange portion, the operation shaft 78 is provided on the back of the extension block 70. Since the knob 78b protrudes so as to be slidable, the knob 78b can be pushed down to convert the unlock key. Therefore, even with a gaming machine having a thick front door such as a slot machine, a locking device can be manufactured at low cost using a general-purpose conversion-type lock.

DESCRIPTION OF SYMBOLS 1 Key conversion type lock 2 Conversion type lock main body 3 Outer cylinder 4 Inner cylinder 5 Lock shaft 6 Operation knob 7 Flange part 8 Cam member 10 Extension block 11 Recess for shaft 12 Recess for operation shaft 12a Recess for operation member 13 Block outer body 13a Mounting flange 13b Flange mounting portion 13c Screw hole 13d Opening portion 13e Opening portion 13f Screw hole 13g Opening portion 13h Opening portion 13i Screw hole 15 Connection shaft 15a Connection portion 15b Lock shaft end portion 15c Engagement piece 16 Block inner body 17 Cover body 17a engaging portion 18 operating shaft 18a connecting shaft 18b knob 19 actuating member 19a engaging convex portion 19b supporting shaft 19c connecting hole 22 connecting member 22a connecting hole 31 base frame body 32 mounting plate 32a guide supporting portion 32b side wall 33 supporting plate 33a Contact support portion 33b Contact portion 34 Connection rod 34b Long hole 34c Engagement portion 35 Member 36 Axis 37 Axis 39 Connecting shaft 42 Guide pin 45 Switch operating rod 48 Roller 49 Actuation switch 50 Cabinet 51 Front door 53 Receiving bracket 54 Plate-like locking portion 55 Plate-like locking portion

Claims (7)

An outer cylinder provided with a flange at the end, an inner cylinder that is rotatably fitted inside the outer cylinder, and an inner side of the outer cylinder that can be engaged with the inner cylinder in the vicinity of the end of the inner cylinder A key-converting lock in which a conversion-type lock main body provided with a lock shaft, attached to the tip of the extended block,
A plurality of through holes are formed in the inner cylinder and the outer cylinder of the conversion type lock main body at right angles to the axial direction, and the through holes of the inner cylinder and the through holes of the outer cylinder are respectively drilled at corresponding positions where they can communicate with each other. A reset through-hole is formed between the inner cylinder and the lock shaft, and a reset pin is inserted into the reset through-hole to engage the lock shaft and the inner cylinder, thereby releasing the engagement of the reset pin. For this purpose, an operation knob is movably provided at the end of the conversion lock body, and a drive pin, a cord setting spacer, and a base pin are urged by a coil spring in the plurality of through holes of the inner cylinder and the outer cylinder, respectively. Inserted,
The extension block is fixed to the back surface of the flange portion of the conversion type lock body, and an attachment flange having an attachment hole is provided at a terminal portion of the extension block,
A shaft recess is formed in the extended block, and an operation shaft recess is formed adjacent to the shaft recess,
A connection shaft is inserted into the shaft recess, and the connection shaft is rotatably held by fitting a cover body into the shaft recess from above the connection shaft.
The operating shaft is fitted in the operating shaft recess so as to be slidable in the axial direction, and when the operating shaft is pressed and slid in the vicinity of the tip of the operating shaft, the operation is performed by pressing the tip. An actuating member that moves in the direction of operation of the knob is provided,
The operating member is provided with an engaging projection that protrudes from the extending block and can be engaged with the operation knob, and a knob that protrudes from the extending block to the back side is provided at the end of the operating shaft. ,
A key-converting lock, wherein by pressing the knob, the operating shaft is slid in the axial direction and the operating member is moved to perform resetting for key conversion.   The actuating member is pivotally supported by a part of the extended block, the tip of the operating shaft is linked to the actuating member, and when the operating shaft is pressed and slid, the actuating member is engaged. 2. The key conversion type lock according to claim 1, wherein a return spring is provided for rotating the mating convex portion so as to move in the operation direction of the operation knob, and urging the operation shaft in the return direction.   The operating shaft is provided with an inclined surface, and the operating member is provided with an inclined portion with which the inclined surface abuts. When the operating shaft is pressed and slid, the operating member has the engaging convex portion. 2. The key conversion type lock according to claim 1, wherein said operation member is slid so as to be moved in an operation direction, and said operation member is provided with a return spring for urging said operation member in a return direction. An outer cylinder provided with a flange at the end, an inner cylinder that is rotatably fitted inside the outer cylinder, and an inner side of the outer cylinder that can be engaged with the inner cylinder in the vicinity of the end of the inner cylinder A key-converting lock in which a conversion-type lock main body provided with a lock shaft, attached to the tip of the extended block,
A plurality of through holes are formed in the inner cylinder and the outer cylinder of the conversion type lock main body at right angles to the axial direction, and the through holes of the inner cylinder and the through holes of the outer cylinder are respectively drilled at corresponding positions where they can communicate with each other. A reset through-hole is formed between the inner cylinder and the lock shaft, and a reset pin is inserted into the reset through-hole to engage the lock shaft and the inner cylinder, thereby releasing the engagement of the reset pin. For this purpose, an operation knob is movably provided at the end of the conversion lock body, and a drive pin, a cord setting spacer, and a base pin are urged by a coil spring in the plurality of through holes of the inner cylinder and the outer cylinder, respectively. Inserted,
The extension block is fixed to the back surface of the flange portion of the conversion type lock body, and an attachment flange having an attachment hole is provided at a terminal portion of the extension block,
A shaft recess is formed in the extended block, and an operation shaft recess is formed adjacent to the shaft recess,
A connection shaft is inserted into the shaft recess, and the connection shaft is rotatably held by fitting a cover body into the shaft recess from above the connection shaft.
The operation shaft is pivotally supported by the operation shaft recess through an intermediate support shaft, and an operating member is pivotally supported on the distal end side of the operation shaft so as to be swingable with respect to the extended block. The tip of the operating shaft is linked to the actuating member,
The operating member is provided with an engaging projection that protrudes from the extending block and can be engaged with the operation knob, and a knob that protrudes from the extending block to the back side is provided at the end of the operating shaft. ,
The operating shaft is provided with a return spring for urging in the return direction,
By the slide operation of the knob, the operation shaft is swung about the support shaft, the operating member is swung, the engagement convex portion moves the operation knob, and resets for key conversion. Key conversion type lock characterized by that. The extended block, a block outside the body formed by bending a substantially U-shaped and an attachment flange by a metal plate in which the flange portion is fixed to the mounting portion of the flange mounting portion and the locking device to be secured, A synthetic resin block inner body fitted into the block outer body, and a flange mounting portion of the block outer body is provided with a mounting hole for fixing the flange portion. The key conversion type lock according to claim 1 or 4, wherein a mounting hole is provided for fixing to the mounted portion, and the shaft inner body and the operation shaft recessed portion are provided in the block main body. .


  When a key is inserted into the key hole of the inner cylinder of the convertible lock body and the inner cylinder is rotated, a torsion spring that biases the inner cylinder in a direction to return it to its original position is fitted on the connecting shaft. The key conversion type lock according to claim 1 or 4, wherein the key conversion type lock is provided.   A connecting portion having a deformed cross section is provided at the tip of the connecting shaft, and a connecting member having a connecting hole having a deformed cross section is fitted to the tip of the lock shaft of the convertible lock body, and the connecting portion at the tip of the connecting shaft 5. The key conversion type lock according to claim 1, wherein the key is fitted in a connection hole of the connection member, and the connection shaft is connected to the lock shaft.

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