JP2011069084A - Variable code-type cylinder lock - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a variable code-type cylinder lock which enables a user to easily check if the lock is ready for operation with a key with a specified key code. <P>SOLUTION: A rotary member 70 with a portion to be engaged, which is to be engaged only with an engaging portion provided in the key with the specified key code, is rotatably provided in an outer cylinder 3; and a checking window 57 is provided to the front wall of the outer cylinder. The key with the specified key code is inserted into a keyhole at a code convention position; and an inner cylinder is turned to a normally-operable position with respect to the outer cylinder. Thus, the conversion of the key code is completed, and a normal operation can be performed with the key with the specified key code. The engaging portion of the key with the specified key code and the portion-to-be-engaged of the rotary member are engaged with each other, so that the rotary member can be rotated; and the checking window enables the user to check if the normal operation can be performed with the key with the specified key code. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a variable code cylinder lock. More specifically, the present invention relates to a variable code cylinder lock that can be set and changed from a state in which operation such as locking / unlocking with a key of a certain key code is possible to operation with another key code. Is.

The variable code cylinder lock is useful in various fields.
For example, adopting a variable code cylinder lock in a gaming machine such as a pachinko machine, a pachislot machine, etc. means that for a manufacturer, a number of gaming machines to be manufactured and shipped are one key code key (also referred to as a distribution key or a standard key). By setting so that the locking / unlocking operation can be performed, there is a great advantage that it is easy to manufacture and inspect the gaming machine. In addition, for the game arcade as a user, a large number of gaming machines can be locked / unlocked with a single key code key (also referred to as a user key) determined by one game arcade instead of a distribution key. The key code can be easily changed, as described above, to manage a large number of gaming machines and to prevent unauthorized operation of gaming machines by third parties (for example, user keys are lost or stolen. Or when a matching key is illegally created, it can be easily changed to a user key with a different key code).

By the way, game machines are frequently replaced at game arcades with the release of new models. Upon replacement, the gaming machine removed from the amusement hall is not discarded, but resold or traded in by the manufacturer, remade by changing the game content, changing the exterior seal, etc. Many are supplied to the market.
In such a case, in the gaming machine adopting the variable code type cylinder lock, code conversion (that is, re-setting of the key code is performed) so that it can be operated from the user key to the distribution key on the game hall side. After that, it is necessary to resell or have the manufacturer take it over.
However, even if there is a game machine that has been forgotten to be converted due to carelessness, etc., it cannot be distinguished from the appearance whether the variable code cylinder lock attached to the game machine has been converted and can be operated with a distribution key. Any gaming machine that is overlooked and cannot be operated with the distribution key will be resold or taken over by the manufacturer.
The manufacturer that picked up the gaming machine cannot operate the key because the code of the user key of the gaming machine forgotten to change the code is unknown, making remake impossible, and eventually such a gaming machine has to be discarded. .

  As variable-code cylinder locks, various types have been proposed so far, as exemplified in Patent Document 1, Patent Document 2, and Patent Document 3, for example.

Japanese Patent No. 4145334 JP 2005-232800 A Japanese Patent Laid-Open No. 9-235921

The variable code cylinder lock described in Patent Document 1 will be described with reference to the drawings. FIG. 1 is an exploded perspective view thereof, and FIG. 2 is a cross-sectional view showing a state in which a key is inserted for normal operation.
1 and 2, 1 is a variable code cylinder lock, 2 is a rear flange, 2a is a screw hole, 3 is an outer cylinder, 3a is an engagement recess for a side bar, 4 is a back plate cover, and 4a is a cam hole. 5 is a key hole, 6 is an inner cylinder, 6a, 6b,... 6i are tumbler holes and rear tumbler holes, 7 is a first tumbler, 8 is a second tumbler, 9 is a side bar for opening and closing, 9a is a support hole, 10 Is a side bar for code conversion, 10a is a support hole, 11 is a key confirmation tumbler, 13 is a spring, 14 is a reset tumbler, 15 is a cam shaft, 15a is a reset engaging portion, 16 is a reset lever, 21 is a key insertion hole, 21a is a key engagement protrusion, 22 is a code groove, 24 is a fitting hole, 31 is an opening / closing side bar groove, 32a, 32b and 32c are code conversion side bar grooves, 33a and 33b are slits, and 41 is a spring support protrusion. , 4 engaging projection, 51 spring, K is the key.
The variable code cylinder lock 1 includes an outer cylinder 3 having a sidebar engaging recess 3a formed along the longitudinal direction on the inner peripheral surface, and tumbler holes 6a, 6b,. Is provided with a plurality of sidebar slits 33a and 33b provided on the outer peripheral surface, and the sidebar slits 33a for the sidebar of the inner cylinder 6 are provided. , 33b are inserted with an opening / closing side bar 9 and a cord conversion side bar 10 which are spring-biased in the direction of the outer cylinder, and the inner tumbler holes 6a, 6b,. 2 tumblers 8 are inserted, the first tumbler 7 has a key hole 5 in the center, and the second tumbler 8 has at least one open / close side bar for engaging the open / close side bar 9 on one end side. Groove 31 Each of the first tumbler 7 and the second tumbler 8 has a key K inserted therein, and has a plurality of code conversion sidebar grooves 32a, 32b, 32c for engaging the code conversion sidebar 10 on the other end side. The second tumbler 8 is connected so as to be rotatable by the vertical slide of the first tumbler 7 along the tumbler hole of the inner cylinder 6 by inserting the key K used before conversion at the time of code conversion, The inner cylinder 6 is rotated to the code conversion position, the engagement of the code conversion side bar 10 is released, the upper and lower slides of the first tumbler 7 are made possible, and a new key to be converted is inserted into the new key. By sliding the first tumbler 7 up and down so as to match the groove (cord), the second tumbler 8 rotates about the opening / closing side bar 9 to correspond to the new key groove. It said code conversion sidebar grooves 32a of the second tumbler 8, 32 b, is obtained by allowing the engagement of the code conversion for the sidebar 10 to 32c.
In short, the variable code cylinder lock 1 described in Patent Document 1 is configured such that the key K is inserted into the key hole 5 at the position where the inner cylinder 6 can be normally operated with respect to the outer cylinder 3, and the inner cylinder 6 is rotated with respect to the outer cylinder 3. It is possible to perform a normal operation by moving the key. The key is inserted into the key hole 5 at a position where the normal operation is possible, and the inner cylinder 6 is rotated to the code conversion position with respect to the outer cylinder 3 and then a new replacement is desired. By inserting the key into the key hole 5 and turning it to the normal operable position, the key code conversion is completed and the setting is changed so that it can be operated normally with the key to be newly replaced. is there.
Here, the normal operable position means the position of the inner cylinder with respect to the outer cylinder in which a key can be inserted into the key hole in order to perform normal operations such as locking and unlocking.

In the variable code cylinder lock 1, an engagement recess 3 a for a side bar formed in the outer cylinder 3, an inner cylinder 6, a first tumbler 7 and a second tumbler 8 disposed in the inner cylinder, and an opening / closing side bar 9. The code conversion sidebar 10, the spring 51, and the like are used when the key code is changed from a state in which normal operation is possible with the key K used before conversion to a state in which normal operation is possible with a key to be newly converted. It functions as a code conversion mechanism.
Therefore, in the variable code cylinder lock 1, in order to change the key code from the state that is normally operable with the distribution key to the state that can be normally operated with the user key, the distribution key is changed to the key at the normal operation position. The code conversion is performed by inserting the user key into the key hole 5 and rotating it to the normal operation position after inserting the inner cylinder 6 to the code conversion position with respect to the outer cylinder 3 by inserting into the hole 5. The mechanism functions, the key code conversion is completed, and the setting is changed to a state where it can be normally operated with the user key.
Conversely, in order to change the key code from a state where normal operation is possible with the user key to a state where normal operation is possible with the distribution key, the user key is inserted into the key hole 5 at the normal operation position and the outer cylinder is inserted. 3, the inner cylinder 6 is rotated to the code conversion position, the distribution key is inserted into the key hole 5 and rotated to the normal operable position, and the code conversion mechanism functions. The conversion is completed, and the setting is changed to a state where normal operation is possible with the distribution key.

  The variable code cylinder locks described in Patent Document 2 and Patent Document 3 differ from the variable code cylinder lock described in Patent Document 1 in details such as the key shape / structure, code conversion mechanism, etc. The key is inserted into the key hole at the position where the inner cylinder can be normally operated with respect to the outer cylinder, and the inner cylinder is rotated with respect to the outer cylinder, so that the normal operation can be performed. After the inner cylinder is rotated to the code conversion position with respect to the outer cylinder, the key of another key code is inserted into the key hole and rotated to the normal operable position. After the conversion is completed, the setting is changed so as to enable normal operation with the key of the different key code.

  Any of the variable code cylinder locks described in Patent Documents 1 to 3 can be operated with any key in terms of appearance, that is, in a state where it can be operated with a distribution key, or a user key. It is not possible to confirm whether it is in an operable state.

  The present invention was devised as a result of earnest research in view of the above circumstances, and is in a state where it can be operated by a key of a specific key code (for example, a distribution key) and a key of a key code other than that. The key code of the distribution key set by the manufacturer in a variable code cylinder lock that can be easily confirmed to be operable by a (user key), for example, a gaming machine employing a variable code cylinder lock A game machine that uses a variable-code cylinder lock that can be operated with a key can be easily converted (changed in settings) to a state where it can be operated with the key code of the user key at the amusement hall. It can be easily confirmed that it can be operated with a game machine, and when a game machine is replaced, it can be resold or the manufacturer will collect it. It is easy to convert the code that can be operated with the key code of the user key to the state that can be operated with the key code of the distribution key, and the key code can be easily returned to the state that can be operated with the distribution key. An object is to provide an inexpensive variable code cylinder lock that can be confirmed.

In order to solve the above-described problems, the present invention provides (1) a key code key set so as to be normally operable at a position where the inner cylinder is normally operable with respect to the outer cylinder. A normal operation is enabled by rotating the inner cylinder. After the key is inserted into the key hole at the normal operable position and the inner cylinder is rotated to the code conversion position, the key of another key code is used. Is inserted into the key hole and rotated to the normally operable position so that the conversion of the key code is completed and the variable code type is set so that it can be normally operated with the key of the other key code. In a cylinder lock, a rotating member having an engaged portion that engages only with an engaging portion provided on a key of a specific key code can be rotated around the rotation axis of the inner cylinder in the outer cylinder. Provided on the front wall of the outer cylinder Confirmation means for confirming whether or not normal operation with the key of the specific key code is possible is provided by the rotation position of the rotation member, and at the code conversion position, the key of the specific key code is inserted into the key hole, By rotating the inner cylinder to the normally operable position, the conversion of the key code is completed, the normal operation with the key of the specific key code is enabled, and the key engaging portion of the specific key code The engaged portion of the turning member is engaged to turn the turning member, and the confirmation means can confirm that normal operation with the key of the specific key code is possible. It is characterized by that.
(2) In said (1), it is preferable that the said rotation member is rotatably provided between the front wall of the said outer cylinder, and the front wall of an inner cylinder.
(3) In the above (1) or (2), the engaged concave portion in which the engaged portion of the rotating member is engaged with the engaging portion provided on the key retaining protrusion of the specific key code. It is preferable that
(4) In the above (1), (2) or (3), the rotating member is provided with a display unit for displaying that the normal operation is possible with the key of the specific key code, It is preferable that confirmation can be performed through a confirmation window provided on the front wall.
(5) In the above (1), (2), (3) or (4), the rotating member is moved by a click mechanism at two positions of the normal operation position or the code conversion position of the inner cylinder. It is preferable that the outer cylinder is locked.
(6) In the above (5), a click locking portion is formed inside the peripheral wall of the outer cylinder, the rotating member is a thin plate, and has a first elastic arm and a second elastic arm, A first locked portion for click locking is provided on the first arm, and a second locked portion is provided on the second arm, and the first locked portion has a key with a specific key code as the inner cylinder. When the inner cylinder is turned to the code conversion position by the specific key code, the second locked part is locked with the click locking part when the key is in the normal operation position. It is preferable to be adapted to engage with the stop.
(7) In the above (6), the click locking portion is a recess extending in the longitudinal direction of the engagement recess for the sidebar, and the first locked portion and the second locked portion of the rotating member. It is preferable that the stop part has a projection shape that is engaged with the recess.
(8) In any one of the above (1) to (7), it is preferable that the rotating member is rotatably supported by the inner cylinder.

Since the present invention is configured as described above, the following effects can be obtained.
That is, a rotating member having an engaged portion that engages only with an engaging portion provided on a key of a specific key code is provided in the outer cylinder so as to be rotatable about the rotation axis of the inner cylinder. The front wall of the outer cylinder is provided with confirmation means for confirming whether or not normal operation with the key of the specific key code is possible by the rotation position of the rotation member, and at the code conversion position, the specific key code By inserting the key into the key hole and rotating the inner cylinder to the normally operable position, the conversion of the key code is completed, and the normal operation with the key of the specific key code becomes possible, The engaging portion of the key of the specific key code and the engaged portion of the rotating member are engaged to rotate the rotating member, and the confirmation means enables normal operation with the key of the specific key code. So that you can confirm Since it is Tsu, and be in a normal operational state by the key of a specific key code, to distinguish from that in the normal operational state it will be readily ascertainable by the other key code of the key. Thus, for example, in a gaming machine that uses a variable code cylinder lock, a gaming machine that uses a variable code cylinder lock that is normally operable with the key code of the distribution key set at the manufacturer's shipment stage. The key code of the user key can easily be converted into a state that can be normally operated on the field side, and it can be easily confirmed that normal operation is possible with the user key. The code can be easily converted (setting changed) from the state that can be normally operated with the key code of the user key to the state that can be normally operated with the key code of the distribution key. You can easily confirm that you have returned to the manufacturer and resell the replaced machine to the manufacturer for resale or remake. When get, there is no fear of contaminating the gaming machine that can not be normal operation in the distribution key.
The variable code cylinder lock is compact and attractive, and its structure is simple and easy to manufacture, and the variable code cylinder lock can be provided at low cost.
The variable code cylinder lock of the present invention is extremely useful not only in gaming machines but also in many fields such as vending machines and rental lockers.

It is a disassembled perspective view of the conventional variable cord type cylinder lock. It is sectional drawing of the state in which the key was inserted for normal operation of the variable code | cord | chord cylinder lock shown in FIG. It is a disassembled perspective view which shows the principal part of one Embodiment of the variable code | cord | chord cylinder lock of this invention. FIG. 4 is an exploded side view, partly broken, of the variable code cylinder lock shown in FIG. 3. FIG. 4 is a front view of the variable code cylinder lock shown in FIG. 3. It is explanatory drawing which shows the state in which the key was inserted that the rotation member is provided between the outer cylinder and the inner cylinder. FIG. 4 is a plan view of keys of different key codes that can be used for the variable code cylinder lock of FIG. 3, (a) is a key (distribution key) of a specific key code, (b), (c) is a key code respectively Shows different user keys. FIG. 3 shows that the variable code cylinder lock of FIG. 3 is in a normally operable state with a distribution key, (a) is an explanatory view including a section of the distribution key on the front wall portion of the outer cylinder, and (b) is a rotating member. It is explanatory drawing containing the cross section of the distribution | circulation key of the site | part to do. The normal operation (the state of rotating clockwise) by the distribution key is shown, (a) is an explanatory view including a section of the distribution key on the front wall portion of the outer cylinder, and (b) of the portion where the rotation member exists. It is explanatory drawing containing the cross section of a distribution | circulation key. The inner cylinder of the variable code cylinder lock and the rotating member are rotated to the code conversion position by the distribution key, (a) is an explanatory view including a section of the distribution key on the front wall portion of the outer cylinder, (b) ) Is an explanatory view including a cross section of a distribution key in a portion where a rotating member is present. In the code conversion position, a state in which the user key is inserted into the key hole is shown, (a) is an explanatory view including a cross section of the user key on the front wall portion of the outer cylinder, and (b) is a user key at a portion where the rotating member exists It is explanatory drawing containing the cross section of. A key conversion operation by a user key (a state of rotating clockwise) is shown, (a) is an explanatory diagram including a cross section of a user key on a front wall portion of an outer cylinder, and (b) is a portion where a rotating member is present. It is explanatory drawing containing the cross section of the user key of. The state where the key conversion operation to the user key is completed is shown, (a) is an explanatory diagram including a cross section of the user key on the front wall portion of the outer cylinder, and (b) is a cross section of the user key at the portion where the rotating member is present. It is explanatory drawing including. The normal operation by the user key (the state of rotating clockwise) is shown, (a) is an explanatory view including a cross section of the user key on the front wall portion of the outer cylinder, and (b) of the portion where the rotating member exists. It is explanatory drawing containing the cross section of a user key. The state where the inner cylinder and the rotating member of the variable code cylinder lock are rotated to the key code conversion position by the user key is shown, (a) is an explanatory view including a cross section of the user key, and (b) is the rotating member. It is explanatory drawing containing the cross section of the user key of the site | part which exists. The state where the inner key of the variable code cylinder lock and the rotating member are rotated to the code conversion position by the user key and the distribution key is inserted into the key hole after the rotating member is rotated to the code conversion position. Explanatory drawing including the cross section of the distribution | circulation key of a wall site | part, (b) is explanatory drawing including the cross section of the distribution | circulation key of the site | part in which a rotation member exists. The rotation member in other embodiments of the variable code type cylinder lock of this invention is shown. FIG. 17 shows that the variable code cylinder lock using the rotating member of FIG. 17 can be normally operated with a distribution key, (a) is an explanatory view including a section of the distribution key on the front wall portion of the outer cylinder, (b) It is explanatory drawing containing the cross section of the distribution | circulation key of the site | part in which a rotation member exists. The inner cylinder of the variable code cylinder lock and the rotating member are rotated to the code conversion position by the distribution key, (a) is an explanatory view including a section of the distribution key on the front wall portion of the outer cylinder, (b) ) Is an explanatory view including a cross section of a distribution key in a portion where a rotating member is present. In the code conversion position, a state in which the user key is inserted into the key hole is shown, (a) is an explanatory view including a cross section of the user key on the front wall portion of the outer cylinder, and (b) is a user key at a portion where the rotating member exists It is explanatory drawing containing the cross section of. The state which completed the key conversion operation by a user key is shown, (a) is explanatory drawing containing the cross section of the user key of an outer cylinder front wall site | part, (b) contains the cross section of the user key of the site | part in which a rotation member exists. It is explanatory drawing. It is explanatory drawing including the cross section of the distribution | circulation key of the site | part in which the rotation member exists in the normal operation possible position of further another embodiment of the variable code | cord | chord type cylinder lock of this invention. It is explanatory drawing including the cross section of the distribution | circulation key of the site | part in which the rotation member exists in the normal operation possible position of further another embodiment of the variable code | cord | chord type cylinder lock of this invention. It is explanatory drawing including the cross section of the distribution | circulation key of the site | part in which the rotation member exists in the normal operation possible position of further another embodiment of the variable code | cord | chord cylinder lock of this invention. Fig. 5 shows still another embodiment of the variable code cylinder lock of the present invention, (a) an exploded side view partly broken, and (b) a distribution key as an example of a key suitable for the variable code cylinder lock. It is a top view. It is a top view which shows the other form of the user key used by this invention.

Hereinafter, embodiments of the present invention will be described in more detail with reference to the drawings. Of course, the present invention is not limited to the following embodiments.
FIG. 3 is an exploded perspective view showing an essential part of one embodiment of the variable code cylinder lock of the present invention, FIG. 4 is an exploded side view partly broken, and FIG. 5 is a front view. In FIGS. 3 and 4, the first tumbler, the second tumbler, and the like are omitted. FIG. 6 is an explanatory view showing that the rotation member 70 is provided between the outer cylinder and the inner cylinder in a state where a key is inserted. 7A and 7B are plan views of keys having different key codes. FIG. 7A shows a key having a specific key code (distribution key), and FIGS. 7B and 7C show user keys having different key codes. In the drawings from FIG. 3, the same components as those in FIGS. 1 and 2 are denoted by the same reference numerals as necessary.

The variable code cylinder lock 1 generally includes a thin disk-shaped rotating member 70 having an engaged portion that engages only with an engaging portion provided on a flow key S that is a key of a specific key code. Between the front wall 55 of the cylinder 3 and the front wall 61 of the inner cylinder 6, the arc-shaped enlarged diameter step portion 63 formed on the head 62 of the inner cylinder 6 rotates around the rotation axis of the inner cylinder. A confirmation window that is supported so as to be able to confirm a display portion 71 on the front wall 55 of the outer cylinder 3 that indicates that a normal operation with the circulation key S provided on the rotating member 70 is possible. 57 is provided, and in the code conversion position, the distribution key S is inserted into the key hole 64 and the inner cylinder 6 is rotated to the normal operation position, whereby the conversion of the key code is completed, and the distribution key S is used. The normal operation is possible, and the engaging portion of the distribution key S and the engaged portion of the rotating member 70 The rotating member 70 is engaged and rotated, so that the normal operation by the distribution key S can be confirmed through the confirmation window 57 by the display unit 71 of the rotating member 70. 1 and 2 is different from the variable code cylinder lock described in FIGS. 1 and 2, and the code conversion mechanism and the like are common to both.
Therefore, in the following, the configuration different from the variable code type cylinder lock described with reference to FIGS. 1 and 2 will be described more specifically with reference to FIGS. 3 to 7, and the code conversion mechanism and the like common to both will be described. Description is omitted.

  As shown in FIGS. 3 and 4, the head portion 62 of the inner cylinder is divided into two sides on both long sides of the key hole 64 by a rectangular key hole 64, and an arc shape is formed at the base of the head 62. An expanded diameter step 63 is provided.

As shown in FIGS. 3 and 6, the rotation member 70 is formed with a rotation hole 72 having substantially the same diameter as the diameter-enlarging step portion 63 of the inner cylinder 6. The concave portions 73 and 73 cut out in the radial direction are formed at opposite positions.
As shown in FIG. 7 (a), the distribution key S is provided with a retaining protrusion 85, and the width w1 thereof is determined by the user key T in FIG. 7 (b) or another user in FIG. 7 (c). The width U2 of the key U is set wider than the width w2. The width w1 corresponds to the facing distance between the recesses 73 of the rotating member 70, and the width w2 is set to be shorter than the diameter of the rotating hole 72 of the rotating member 70.
When the flow key S is inserted into the key hole 64, the end portions 85a and 85a of the retaining projection 85 are engaged with the concave portions 73 and 73 of the rotating member 70, and if the normal operation is performed, the rotating member 70 becomes the inner cylinder. 6 will rotate. On the other hand, even if the user key T or the user key U is inserted into the key hole 64, the end portions of these retaining projections 86 do not engage with the concave portions 73 and 73 of the rotating member 70, and normal operation is performed. However, only the inner cylinder 6 rotates, and the rotating member 70 does not rotate. Thus, the end portions 85a and 85a of the retaining protrusion 85 of the flow key S constitute an engaging portion that engages only with the concave portions 73 and 73 of the rotating member 70, and the concave portions 73 and 73 constitutes an engaged portion.
The diameter expanding step 63 of the inner cylinder is used to support the rotating member 70 at a stable position and prevent the rotating member 70 from being hindered even when only the inner cylinder 6 is rotated by a user key. Is preferred, but not necessarily required.
Note that the shape (code) of the key groove of the distribution key S, the user key T, and the user key U is different for each key.

The rotating member 70 is securely locked to the outer cylinder 3 at two positions of the normal operation position of the inner cylinder 6 or the code conversion position by the click mechanism. Therefore, as shown in FIG. 3 and FIG. 6, the arc-shaped first elastic arm 74 and the second elastic arm 75 are arranged at the rotation center of the rotation member 70 on the outer peripheral side of the rotation member 70. The first elastic arm 74 has a first protrusion 74a, and the second elastic arm 75 has a second protrusion 75a. A recess 3a is formed inside the peripheral wall of the outer cylinder 3, and when the inner cylinder 6 is in a position where normal operation is possible with the flow key S, the first protrusion 74a of the first elastic arm 74 is locked to the recess 3a, The second elastic arm 75 is elastically deformed inward by the outer cylinder 3. When the inner cylinder 6 is rotated to the code conversion position by the distribution key S, the second protrusion 75a of the second elastic arm 75 is locked to the recess 3a, and the first elastic arm 74 is elastically deformed inward by the outer cylinder 3. (See FIG. 10).
As shown in FIG. 4, the recess 3 a formed inside the peripheral wall of the outer cylinder 3 extends the engagement recess for the sidebar (see also drawing number 3 a in FIG. 2) in the longitudinal direction. For example, a recess different from the engagement recess for the side bar may be formed inside the peripheral wall of the outer cylinder.

  The rotation member 70 includes a display portion 71 and a cutout portion 76 in which a point symmetric position is cut out with respect to the rotation center. The display portion 71 of the rotating member 70 is in a position that can be confirmed through a confirmation window 57 provided on the front wall 55 of the outer cylinder 3 when the inner cylinder 6 is in a position where the inner cylinder 6 can be normally operated by the distribution key S. When the cylinder 6 is rotated to the code conversion position by the distribution key S, the notch portion 76 is positioned in the confirmation window 57. The display unit 71 is preferably colored, for example.

A center hole of the front wall 55 of the outer cylinder 3 is formed with a front hole 58 that allows key insertion and receives the head 62 of the inner cylinder. Is attached so that the top surface of the head 62 of the inner cylinder 6 is flush with the front surface of the outer cylinder 3.
As shown in FIGS. 3 and 5, when the mark ◯ provided on the head 62 of the inner cylinder 6 coincides with the △ mark provided on the front wall 55 of the outer cylinder 3, the key When the inner cylinder 6 is rotated and the ◯ mark is in the opposite position through the key hole 64 with respect to the △ mark, it indicates that it is in the code conversion position.
As described above, the △ mark on the outer cylinder 3 and the ◯ mark on the inner cylinder 6 are provided so that it can be easily confirmed whether the inner cylinder 6 is in the normal operable position or the code conversion position. Thus, the shape, combination, arrangement position and the like of the marks on the outer cylinder 3 and the marks on the inner cylinder 6 are not limited thereto. In order to easily check whether the inner cylinder 6 is in the normal operation position or the code conversion position, it is preferable to provide a mark on the outer cylinder 3 and the inner cylinder 6, but this is not always necessary. Is not to be done.

Next, normal operation by the distribution key S of the variable code cylinder lock 1 will be described.
FIG. 8 shows that the variable code cylinder lock can be normally operated with a distribution key, and (a) includes a section of the distribution key on the front wall portion of the outer cylinder in a state where the distribution key is inserted into the key hole. FIG. 4B is an explanatory view including a cross-section of a distribution key in a portion where a rotating member exists.
In this state, as shown in FIG. 8A, the mark is in the position where the mark is coincident with the mark Δ, and the display portion 71 of the rotating member 70 can be confirmed through the confirmation window 57. As shown in FIG. 8B, the rotating member 70 has the first protrusion 74a of the first elastic arm 74 locked to the recess 3a of the outer cylinder 3, and the second elastic arm 75 has an outer cylinder. 3, the end portions 85 a and 85 a of the retaining protrusions of the distribution key S are rotated by inserting the distribution key S shown in FIG. 7A into the key hole 64. It will engage with the recesses 73, 73 of the moving member 70.
In this state, by normally operating the distribution key S, the rotating member 70 rotates together with the inner cylinder.
FIG. 9 shows a normal operation (a state in which the variable code type cylinder lock is operated in a clockwise direction) with a distribution key, and (a) is an explanatory view including a section of the distribution key on the front wall portion of the outer cylinder. ) Is an explanatory view including a cross section of a distribution key in a portion where a rotating member is present.
By rotating the distribution key S in the clockwise direction, the rotating member 70 rotates in the clockwise direction together with the inner cylinder, and as shown in FIG. The rotating member 70 can be confirmed through the confirmation window 57. When the rotation member 70 starts to rotate clockwise together with the inner cylinder, the first protrusion 74a of the first elastic arm 74 and the recess 3a of the outer cylinder 3 are disengaged, and the rotation member 70 has the first elasticity. Both the arm 74 and the second elastic arm 75 rotate while being elastically deformed inward by the outer cylinder 3.

Next, an operation for converting the key code of the variable code cylinder lock 1 from a state in which the variable code cylinder lock 1 can be normally operated by the distribution key S to a state in which the user key T can be normally operated will be described.
First, the distribution key S is inserted into the key hole 64 of the variable code cylinder lock 1 that is normally operable with the distribution key S. Since the state is the same as the state shown in FIG. 8 described above, illustration and description are omitted.
Then, when the distribution key S is rotated 180 ° clockwise to the code conversion position, the rotating member 70 together with the inner cylinder 6 becomes the state shown in FIG. 10 through the state shown in FIG.
FIG. 10 shows a state where the inner cylinder and the rotating member of the variable code cylinder lock are rotated to the code conversion position by the distribution key, and (a) is an explanation including a section of the distribution key on the front wall portion of the outer cylinder. FIG. 4B is an explanatory view including a cross-section of a distribution key in a portion where a rotating member exists.
As shown in FIG. 10 (a), at the code conversion position, the ◯ mark of the inner cylinder 6 is opposite to the Δ mark of the outer cylinder 3 through the key hole 64 and is at the code conversion position. Further, the notch portion 76 of the rotating member 70 is located in the confirmation window 57. As shown in FIG. 10B, the rotating member 70 has the second protrusion 75a of the second elastic arm 75 engaged with the recess 3a of the outer cylinder 3, and the first elastic arm 74 has an outer cylinder. 3 is elastically deformed inward.

Next, in the code conversion position, the distribution key S is pulled out from the key hole 64 and the user key T is inserted into the key hole 64. As is apparent from FIG. 11, the end of the protrusion 86 for retaining the user key T is The recesses 73 and 73 of the rotating member 70 are not engaged.
Then, when the user key T is rotated clockwise (or may be counterclockwise), as shown in FIG. 12A, the inner cylinder 6 is rotated and the circle mark approaches the triangle mark. As shown in FIG. 12B, the rotating member 70 does not rotate and remains in its position.
Further, when the user key T is rotated and the inner cylinder 6 is rotated 180 ° clockwise from the code conversion position, the key code conversion is completed, and the variable code cylinder lock 1 can be normally operated by the user key T. It becomes a state. In this state, as shown in FIG. 13, the circle mark reaches a position that coincides with the triangle mark, but the rotation member 70 does not rotate, and the confirmation window 57 has a cutout portion 76 of the rotation member 70. Therefore, the front wall 61 of the inner cylinder 6 can be confirmed, and it can be confirmed that the distribution key S is in a position where it can be normally operated by the user key T of the part. The key code is converted by the function of the code conversion mechanism described above (the same applies hereinafter).

  Even if the user key T is rotated in the clockwise direction and the locking operation is performed at the position where the user key T can be normally operated as shown in FIG. 13, the inner cylinder 6 rotates in the clockwise direction as shown in FIG. However, the rotating member 70 does not rotate and remains in the position as it is.

  In order to change the key code so that the user key T can be normally operated with another user key U as shown in FIG. 7C at the position where the user key T can be normally operated, the user key T is inserted into the key hole and rotated clockwise by 180. Rotate the inner cylinder to the code conversion position, pull out the user key T from the key hole, insert another user key U into the key hole, and rotate it 180 degrees clockwise. Thus, the key code conversion is completed, and the variable code cylinder lock 1 is in a state where it can be normally operated by another user key U. Even if the code conversion operation is performed, the rotating member 70 does not rotate and remains in the same position, and the cutout portion 76 of the rotating member 70 remains in the confirmation window 57 as in FIG. It is.

Next, in order to remake the gaming machine and supply it to the market as a refurbished product, the variable code cylinder lock of the gaming machine that the manufacturer takes over can be operated with the distribution key from the state that can be operated with the user key. For example, an operation for converting the key code from a state that can be normally operated by the user key T to a state that can be normally operated by the key code of the distribution key S will be described.
First, the user key T is inserted into the key hole 64 of the variable code cylinder lock 1 that is normally operable with the user key T. Since the state is the same as the state shown in FIG. 13 described above, illustration and description thereof are omitted.
Then, when the user key T is rotated 180 ° clockwise to the code conversion position, only the inner cylinder 6 becomes the state shown in FIG. 15 through the state shown in FIG.
FIG. 15 shows a state in which the inner cylinder of the variable code type cylinder lock is rotated to the key code conversion position by the user key, (a) is an explanatory view including a cross section of the user key, and (b) is a rotating member. It is explanatory drawing containing the cross section of the user key of the site | part which exists.
As shown in FIG. 15 (a), in the code conversion position, the ◯ mark of the inner cylinder 6 is opposite to the Δ mark of the outer cylinder 3 through the key hole 64, and is in the code conversion position. In addition, the cutout portion 76 of the rotating member 70 remains positioned in the confirmation window 57. As shown in FIG. 15 (b), the rotating member 70 has the second protrusion 75 a of the second elastic arm 75 locked in the recess 3 a of the outer cylinder 3, and the first elastic arm 74 is moved by the outer cylinder 3. It is in an elastically deformed state inside.

Next, when the user key T is pulled out from the key hole 64 and the distribution key S is inserted into the key hole 64 at the code conversion position, the end 85a of the retaining protrusion 85 of the distribution key S, as shown in FIG. 85 a engages with the recesses 73, 73 of the rotating member 70.
When the distribution key S is rotated in the clockwise direction, the rotation member 70 is rotated together with the inner cylinder 6. At that time, the engagement between the second protrusion 75a of the second elastic arm 75 of the rotating member 70 and the concave portion 3a of the outer cylinder 3 is released, and the rotating member 70 includes both the first elastic arm 74 and the second elastic arm 75. The outer cylinder 3 is rotated in a state elastically deformed inward.
Further, when the distribution key S is rotated and the inner cylinder 6 is rotated 180 ° clockwise from the code conversion position, the key code conversion is completed, and the variable code type cylinder lock 1 is once again returned to the normal position by the distribution key S. The state shown in FIG. That is, the circle mark reaches the position where it matches the triangle mark, and the display portion 71 of the rotating member 70 can be confirmed through the confirmation window 57. In the rotating member 70, the first protrusion 74 a of the first elastic arm 74 is engaged with the recess 3 a of the outer cylinder 3, and the second elastic arm 75 is elastically deformed inward by the outer cylinder 3.
As described above, according to the variable code cylinder lock 1, it is possible to confirm whether or not normal operation with the standard key is possible by confirming the rotational position of the rotational member 70 through the confirmation window 57.

  The display part and the cutout part of the rotating member may be exchanged so that the position is opposite to the center of rotation. According to this, in the state that can be normally operated by the distribution key, the display unit cannot be confirmed from the confirmation window, and the display unit can be confirmed from the confirmation window in a state in which the code is converted and can be normally operated by the user key. Become.

  The operation for converting the key code from a state that can be normally operated by another user key such as the user key U to a state that can be normally operated by the distribution key S may be performed as described above.

  For example, a key of a specific key code having an engaging portion that can rotate a predetermined rotating member without returning the variable code cylinder lock to a state where it can be normally operated with a distribution key. It goes without saying that a gaming machine that is normally operable can be taken over by the manufacturer.

FIG. 17 shows a rotating member according to another embodiment of the variable code cylinder lock of the present invention.
A rotating member 90 shown in FIG. 17 has a crescent shape with elastic arms extended on both sides. The rotating member 90 is provided with a first protrusion 91 a at the tip of the first elastic arm 91 and a second protrusion 92 a at the tip of the second elastic arm 92. The first protrusion 91a is engaged with the concave portion 3a of the outer cylinder 3 when the inner cylinder is in a position where the inner cylinder is normally operated by the distribution key, and the second protrusion 92a is outside when the inner cylinder is rotated to the code conversion position. The cylinder 3 is engaged with the recess 3a. A concave portion 93 that engages only with one end portion 85 a of the retaining protrusion 85 of the flow key S is formed at the substantially inner center of the rotating member 90.

  Since the variable code type cylinder lock using the rotation member 90 is the same as the variable code type cylinder lock 1 except for the rotation member, the following is from a state in which normal operation with the distribution key S is possible. The operation for converting the key code to a state in which the user key T can be normally operated will be briefly described with reference to FIGS. 18 to 21, and the normal operation with the distribution key S, the normal operation with the user key T, and the user key T will be described. The operation for converting the key code from the normally operable state to the normally operable state by the distribution key S may be performed in accordance with the variable code cylinder lock 1, and the description thereof is omitted. 18 and 19, (a) is an explanatory diagram including a cross section of a distribution key in a front wall portion of the outer cylinder, and (b) is an explanatory diagram including a cross section of a distribution key in a region where a rotating member is present. 20 and 21, (a) is an explanatory view including a cross section of a user key in a front wall portion of the outer cylinder, and (b) is an explanatory view including a cross section of the user key in a portion where a rotating member is present. is there.

In order to convert the key code from a state in which the distribution key S can be normally operated to a state in which the user key T can be normally operated, for example, the following operation may be performed.
That is, first, the distribution key S is inserted into the key hole of the variable code cylinder lock that is normally operable with the distribution key S. FIG. 18 shows that the variable-code cylinder lock can be normally operated with the distribution key, and one end 85a of the protrusion 85 for retaining the distribution key S is engaged with the recess 93 of the rotating member 90. . In this state, the display unit 94 of the rotating member 90 can be confirmed through the confirmation window 57.
Then, when the circulation key S is rotated 180 ° clockwise to the code conversion position, the rotation member 90 rotates together with the inner cylinder to reach the code conversion position shown in FIG. In FIG. 19, it can be seen that the ◯ mark of the inner cylinder is at a position opposite to the Δ mark of the outer cylinder 3 through the key hole, and the inner cylinder is at the code conversion position. Further, the turning member 90 is turned upside down, and the turning member 90 cannot be confirmed from the confirmation window 57.

Next, even if the distribution key S is pulled out of the key hole and the user key T is inserted into the key hole at the code conversion position, as shown in FIG. It does not engage with the recess 93 of the.
Then, when the user key T is rotated 180 ° clockwise to the normal operation position, only the inner cylinder is rotated, and the normal operation state by the distribution key S is changed to the normal operation state by the user key T. Conversion of the key code of the variable code cylinder lock is completed (see FIG. 21). In this state, the rotating member 90 remains upside down, and the rotating member 90 cannot be confirmed from the confirmation window 57, and the front wall 61 of the inner cylinder can be confirmed.

FIG. 22 shows a variable code cylinder lock that employs another rotating member 100. The rotating member 100 includes a plate-like first arc-shaped piece 101 and a second arc-shaped piece 102 provided at a point-symmetrical position with respect to the rotation center, and the arc-shaped first elastic metal wire 103 and the second elastic metal wire 104. Concatenated.
The first convex portion 103 a of the first elastic metal wire 103 and the second convex portion 104 a of the second elastic metal wire 104 are in point-symmetric positions with respect to the rotation center of the rotation member 100. The first convex portion 103a is engaged with the concave portion 3a of the outer cylinder 3 when the inner cylinder is at a position where the inner cylinder is normally operated by the distribution key, and the second convex portion 104a is when the inner cylinder is rotated to the code conversion position. The outer cylinder 3 is engaged with the recess 3a. The first arc-shaped piece 101 has an arc length longer than that of the second arc-shaped piece 102, and is provided with a display unit 105. The first arc-shaped piece 101 and the second arc-shaped piece 102 are provided with a distribution key at substantially the center on the inner peripheral side. Concave portions 106 and 107 are formed which engage only with the front end portions 85a and 85a of the S retaining projection 85.
The rest is the same as the variable code cylinder lock 1 described above, and a description thereof will be omitted.

FIG. 23 shows a variable code cylinder lock employing a further rotating member 110. The rotating member 110 is not provided with the notched portion 76 of the rotating member 70 described above, has a point-symmetric shape with respect to the center of rotation, and is normally operable with a distribution key. And a second display unit 112 indicating that a normal operation is possible with a user key. The first display unit 111 and the second display unit 112 are, for example, different colors (not shown).
According to the rotating member 110, the first display unit 111 can be confirmed via the confirmation window when the normal operation is possible with the distribution key, and the confirmation window is opened when the normal operation is possible with the user key. 2nd display part 112 can be confirmed via this.
The rest is the same as the variable code cylinder lock 1 described above, and a description thereof will be omitted.

FIG. 24 shows a variable code cylinder lock employing a further rotating member 120. The rotating member 120 is different from the above-described rotating member 70 in that the rotating member 120 has a rotating hole 121 and is provided at a position where the convex portions 122 and 122 face each other. Concave portions 87b and 87b are provided at the end portions of the retaining protrusions 87 of the flow key S1 used in the variable code cylinder lock so as to engage with the convex portions 122 and 122.
The rest is the same as the variable code cylinder lock 1 described above, and a description thereof will be omitted.

FIG. 25A shows a variable code cylinder lock that employs another rotating member 130. The rotation member 130 is a thick plate-like annular body having a rotation hole 131, and a first recess 132 and a second recess (not shown) are provided on the outer peripheral surface at symmetrical positions with respect to the rotation center. Is provided. Then, a click ball 133 and a coil spring 134 are loaded into a hole 3c formed in the cylindrical portion 3b of the outer cylinder 3 and covered with a closing bolt 135 from the outside. This constitutes a click mechanism.
The diameter-expanded step 136 is extended in the longitudinal direction in accordance with the rotating member 130.
FIG. 25B is a plan view of a distribution key S1 as an example of a key suitable for the variable code cylinder lock.
Although not shown in the figure, the rotating member 130 has a first display unit indicating that the normal operation is possible with the distribution key and a first operation unit indicating that the normal operation is possible with the user key. Two display units are provided. For example, the first display unit and the second display unit have different colors.
According to this structure, the rotating member 130 is reliably locked to the outer cylinder 3 at the two positions of the normal operation position of the inner cylinder 6 or the code conversion position by the click mechanism described above, When the normal operation is possible with the distribution key, the first display unit can be confirmed via the confirmation window, and when the normal operation is possible with the user key, the second display unit can be confirmed via the confirmation window.
The rest is the same as the variable code cylinder lock 1 described above, and a description thereof will be omitted.

The user key retaining protrusion is not limited to the shape shown in FIGS. 7B and 7C, and may be the shape shown in FIG. 26, for example.
26 has a stepped portion with a rear part having a width w2 and a front part having a wide w1. Even if the user key T1 is inserted into the key hole of the variable code cylinder lock 1 and is normally operated, the front portion does not engage with the concave portion of the rotating member.
In the above, the retaining protrusion of the distribution key is the engaging portion of the rotating member with the engaged portion. However, the present invention is not limited to this, and the engaging protrusion is provided separately from the retaining protrusion. You may make it engage with the to-be-engaged part of a rotation member. In addition, in a variable code cylinder lock using a distribution key having a retaining part that is not a retaining protrusion, the shape and the like may be set so that the circulation key and the rotating member are appropriately engaged.

The shape of the confirmation window is not limited to the above-described one. For example, the confirmation window may be a semicircular confirmation window, and the arrangement position is not limited to the above-described position.
In the case where it is difficult to confirm the display portion of the rotating member through the confirmation window, for example, a magnifying lens may be provided in the confirmation window.

  By coloring the display section provided on the rotating member, it is easy to check whether or not the normal operation is possible with the distribution key. However, the present invention is not limited to this. For example, the display section may be discolored or the display section may become dirty. If there is a possibility, a confirmation hole may be provided in the display portion of the rotating member, and the confirmation may be made based on the presence or absence of the hole, the difference in the shape of the hole, or the like.

  In order to securely lock the rotating member to the outer cylinder at two positions of the normal operation position or the code conversion position of the inner cylinder, it is preferable to employ a click mechanism, but this is not a limitation. .

  The rotating member is not limited to a configuration that can rotate between the front wall of the outer cylinder and the front wall of the inner cylinder. For example, the outer cylinder includes a cap and a cylinder, and the rotating member includes a cap. It is possible to adopt a structure in which the rotating member is arranged between the partition wall provided in the cylinder and the rotating member is supported by the enlarged diameter step portion of the head portion of the inner cylinder.

  In the above-described embodiment, the confirmation means using the confirmation window is used as confirmation means for confirming the normal operation possible state with the distribution key. However, the confirmation means is not limited to this, and for example, a rotating member is used. The normal operation by the distribution key may be detected and displayed by detecting a specific portion of the rotating member electrically, magnetically, or optically.

  As described above, the invention of the variable code type cylinder lock has been described as being based on the variable code type cylinder lock described in Patent Document 1. However, the present invention is different from those described in Patent Document 2, Patent Document 3, and the like. Needless to say, this can also be applied to the variable code type cylinder lock.

DESCRIPTION OF SYMBOLS 1 Variable code | cord | chord cylinder lock 3 Outer cylinder 3a Recess 6 Inner cylinder 55 Front wall 57 Confirmation window 61 Front wall 70 Rotating member 71 Display part 72 Rotation hole 73 Recess 74 First elastic arm 74a First protrusion 75 Second elastic arm 75a Second projection 85 Retaining projection S Distribution key

Claims (8)

At the normal operation position of the inner cylinder with respect to the outer cylinder, a key code key set to be normally operable is inserted into the key hole, and the normal operation is enabled by rotating the inner cylinder with respect to the outer cylinder, The key is inserted into the key hole at the normal operable position, the inner cylinder is rotated to the code conversion position, and a key of another key code is inserted into the key hole and rotated to the normal operable position. In the variable code cylinder lock that is configured to change the setting so that the key code conversion is completed and can be normally operated with the key of the other key code,
A rotating member having an engaged portion that engages only with an engaging portion provided on a key of a specific key code is provided in the outer cylinder so as to be rotatable around a rotation axis of the inner cylinder,
The front wall of the outer cylinder is provided with a confirmation means for confirming whether or not a normal operation with the key of the specific key code is possible by a rotation position of the rotation member,
At the code conversion position, the key of the specific key code is inserted by inserting the key of the specific key code into the key hole and rotating the inner cylinder to the normal operable position. Normal operation is possible, and the engaging portion of the key of the specific key code and the engaged portion of the rotating member are engaged to rotate the rotating member, and the specific key causes the specific key to be rotated. A variable code cylinder lock characterized in that it can be confirmed that normal operation with a code key is possible.   2. The variable code cylinder lock according to claim 1, wherein the rotating member is rotatably provided between a front wall of the outer cylinder and a front wall of the inner cylinder.   The engaged portion of the rotating member is an engaged recessed portion that engages with an engaging portion provided on a key retaining protrusion of the key of the specific key code. Variable code type cylinder lock.   The rotating member is provided with a display unit for displaying that normal operation is possible with the key of the specific key code, and can be confirmed through a confirmation window provided on the front wall of the outer cylinder. 4. The variable code cylinder lock according to claim 1, 2, or 3.   2. The rotating member is configured to be locked to the outer cylinder by a click mechanism at two positions of a normal operation position of the inner cylinder or a code conversion position. 2. The variable code cylinder lock according to 2, 3 or 4.   A click locking portion is formed inside the peripheral wall of the outer cylinder, the rotating member is thin plate-shaped, and has a first elastic arm and a second elastic arm, and the first arm has a click locking portion. The first locked portion is provided with a second locked portion on the second arm, and the first locked portion is configured so that the inner cylinder is in a position where it can be normally operated by a key of a specific key code. The second locking portion is locked with the click locking portion when the inner cylinder is rotated to the code conversion position by the specific key code. 6. The variable code cylinder lock according to claim 5, wherein the variable code cylinder lock is provided. The click locking portion is a recess extending in the longitudinal direction of the engagement recess for the sidebar;
The variable code cylinder lock according to claim 6, wherein the first locked portion and the second locked portion of the rotating member have a protruding shape that locks into the recess.   The variable code cylinder lock according to any one of claims 1 to 7, wherein the rotating member is rotatably supported by the inner cylinder.

Images