JP2013079499A - Dial lock and series thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dial lock which has higher versatility than a conventional one, can reduce cost and shorten a development period, and can easily increase variation of products, and to provide a series thereof.SOLUTION: A dial lock 10 includes: a cam 18 which is movable from one of a locking position and an unlocking position to the other; a knob 16 which moves the cam 18 from one of the locking position and the unlocking position to the other; a locking/unlocking device which can be set to a locked state making the knob 16 unrotatable by combination of a plurality of dials 34 when the cam 18 is located at the locking position and can be set to an unlocked state making the knob 16 rotatable when the cam 18 is located at the unlocking position; and a search device for searching the combination of the plurality of dials 34 for switching the locking/unlocking device from the locked state to the unlocked state. In a finished product of the dial lock 10, a lock 42 can be exchanged without detaching members of the search device other than the lock 42.

Description

  The present invention relates to a dial lock that is unlocked by setting a plurality of dial numbers to a specific combination and a series thereof.

  2. Description of the Related Art Conventionally, dial locks that are provided with a plurality of disk-shaped dials with numbers on the outer peripheral surface and that are unlocked by setting the numbers of the plurality of dials to a specific combination (password) are widely known. . For example, as one of such dial locks, a dial lock having a search mechanism for searching for a personal identification number has been proposed (see, for example, Patent Document 1).

Japanese Patent No. 3358082

  However, conventional dial locks use a lot of parts that are designed in accordance with the structure of the door where the dial lock is installed and the needs of the user of the dial lock. There was a limit.

  The present invention has been made to solve such a conventional problem, and is more versatile than the conventional one, and can reduce costs and shorten the development period as well as product variations. An object of the present invention is to provide a dial lock and its series that can be easily increased.

  The present invention provides a cam that is movable from one of a locking position and an unlocking position to the other, a knob that moves the cam from one of the locking position and the unlocking position to the other, and a combination of a plurality of dials. A locking / unlocking device that can be set to a locked state in which the knob cannot be rotated when the cam is in the locked position, or an unlocked state in which the knob can be rotated when the cam is in the unlocked position. And a search device for searching for a combination of the plurality of dials for changing the lock / unlock device from the locked state to the unlocked state. A dial lock comprising a lock and a key for validating the search, wherein the lock can be exchanged without removing a member other than the lock in a finished product.

  According to the dial lock and its series according to the present invention, the versatility is higher than before, and it is possible to reduce costs and shorten the development period, and it is possible to easily increase product variations. Can have an effect.

It is a front view of a dial lock. It is a left view of a dial lock. It is a rear view of a dial lock. It is an exploded view showing parts of the dial lock. (A) It is an external appearance perspective view which shows the state which removed the decorative board from the dial lock. It is a disassembled perspective view which extracts and shows a part of components from the external appearance perspective view of (b)-(d) (a). (A) It is a front view which permeate | transmits and shows some components of the locking / unlocking apparatus of an unlocking state. (B) It is a front view which permeate | transmits and shows some components of the locking / unlocking apparatus of an empty lock state. (C) It is a left view which permeate | transmits and shows some components of the locking / unlocking apparatus of an unlocked state or an empty lock state. (D) It is a left view which permeate | transmits and shows some components of the locking / unlocking apparatus of a locked state. (E) It is the elements on larger scale which expand and show some components of the locking / unlocking apparatus of a locked state. (A) It is an external appearance perspective view which shows a mode that the state which inserted the key in the inner cylinder was seen from the front. (B) It is an external appearance perspective view which sees the state which inserted the key in the inner cylinder from the back, and permeate | transmits some components. (A) It is the schematic which shows the mode of a search device when a search key is inserted in the inner cylinder. (B) It is the schematic which shows the mode of a search device when turning a search key to the right side and starting a search. (C) It is the schematic which shows the mode of a search device when a search key is turned rightward and a search is complete | finished. (A) It is the photograph which showed an example of the search key and inner cylinder exchange key which can be inserted in an inner cylinder. (B) It is a photograph which shows the state which inserted the search key in the inner cylinder. (C) It is a photograph which shows the state which inserted the inner cylinder exchange key in the inner cylinder. (A) It is the photograph which copied the inner cylinder of the state inserted in the inner case and in which neither a search key nor an inner cylinder exchange key is inserted from the back side. (B) It is the photograph which copied from the back side the inner cylinder inserted in the inner case and in which the search key is inserted. (C) It is the photograph which copied the inner cylinder from the back side in the state where it was inserted in the inner case and the inner cylinder exchange key was inserted. It is the conceptual diagram which showed the concept of the series of the dial lock provided with multiple dial locks.

  Hereinafter, the dial lock 10 according to the present embodiment will be described in detail with reference to the drawings. 1 is a front view of the dial lock 10, FIG. 2 is a left side view of the dial lock 10, and FIG. 3 is a rear view of the dial lock 10. 4 is an exploded view showing parts of the dial lock 10, FIG. 5A is an external perspective view showing a state in which the decorative plate 14 is removed from the dial lock 10, and FIGS. FIG. 3 is an exploded perspective view showing a part extracted from the external perspective view of FIG.

<Overall configuration>
As shown in FIGS. 1 to 3, the dial lock 10 includes a box-shaped case 12 having an opening on the front surface and a plate-shaped decorative plate attached to the front surface of the case 12 so as to cover the opening of the case 12. 14, the locking / unlocking device 20 (reference numerals 22, 24, 26, 28, 30, 31, 32, 34, 36 shown in FIG. 4) housed inside the case 12 and the decorative plate 14, and the locking / unlocking device The knob 16 for performing the locking or unlocking operation on the lock 20 and the lock cam 28 of the locking / unlocking device 20 are fixed to the lock cam 28 by the screw 17 and interlocked with the rotation of the lock cam 28 to the locking position (FIG. 6B). (Shown position) and unlocked position (position shown in FIG. 6 (a)) are fitted into the case 12 via a plate-like cam 18 rotated from one side to the other and a spring 39, and are advanced and retracted with respect to the case 12. Possible latch 38 and Unlocking device 20 retrieving devices for retrieving the personal identification number set by 40 is configured to have a like (code 42, 44, 46, 48 shown in FIG. 4).

  The dial lock 10 is used by being attached to a door end of a door such as a locker or a cabinet. When the cam 18 is rotated from the unlocked position to the locked position by the knob 16, the tip of the cam 18 protrudes from the door tip of the door in the protruding direction of the latch 38 and engages with a main body such as a locker or cabinet. It is comprised so that opening and closing of may be prohibited. On the other hand, when the knob 18 is rotated by the knob 16 from the locked position to the unlocked position, the opening of the door is permitted by the withdrawal of the tip of the cam 18 from the main body such as a locker or cabinet.

<Locking and unlocking device>
Next, the locking / unlocking device 20 will be described. As shown in FIGS. 4 and 5, the locking / unlocking device 20 includes an inner case 22 installed in the case 12, a slider 24 slidable in the horizontal direction with respect to the inner case 22, and the slider 24 in front. A spring 26 and a knob 16, which are contracted between the inner case 22 and the slider 24 in order to urge it to the left side as viewed, are fitted, and the slider 24 resists the urging force of the spring 26 in conjunction with the rotation of the knob 16. The locking cam 28 to be slid, a restricting position for restricting the rotation of the locking cam 28 (position shown in FIG. 6D), and an allowable position for allowing the locking cam 28 to rotate (position shown in FIG. 6C). A sense cam 30 that can be moved between the case 12, a spring 31 that is contracted between the sense cam 30 and the case 12 to urge the sense cam 30 away from the case 12, A plurality (four in this example) of lock gears 32 that move the scum 30 from one of the restriction position and the allowable position to the other, and a plurality of lock gears 32 that are engaged with each of the lock gears 32 and that can rotate together with the lock gear 32. (In this example, four dials) and a rod-shaped dial shaft 36 that rotatably supports the plurality of lock gears 32 and the dial 34 are configured.

  Next, the movement of the locking / unlocking device 20 will be described. FIG. 6A is a front view illustrating a part of the unlocking / unlocking device 20 in an unlocked state, and FIG. 6B illustrates a part of the unlocking / unlocking device 20 in an unlocked state. FIG. 4C is a left side view illustrating a part of the locking / unlocking device 20 in the unlocked state or the empty locking state, and FIG. 4D is a locking / unlocking device 20 in the locked state. The left view which permeate | transmits some components of this, and the same figure (e) are the elements on larger scale which expand and show some components of the locking / unlocking apparatus 20 of a locked state.

<Locking / unlocking device / unlocking state>
In the unlocked state shown in FIG. 5A, the knob 16 is in the unlocked position rotated to the left, and there are two cams: a lock cam 28 in which the knob 16 is fitted and a cam 18 fixed to the lock cam 28. In the unlocked position. In this unlocked state, the slider 24 is moved to the left side in the case 12 by the urging force of the spring 26. Further, in this unlocked state, as shown in the left side view of FIG. 4C, each of the front end portions of the corresponding sense cams 30 enters the recesses formed on the outer peripheral surfaces of the lock gears 32. The sense cam 30 is biased in a direction away from the case 12 by the spring 31 and is positioned at an allowable position that allows the lock cam 28 to rotate (not engage with the lock cam 28). That is, in this unlocked state, the cam 18 is in the unlocked position and permits the opening and closing of the door (not shown), but the unlocking device 20 is rotated by rotating the knob 16 (lock cam 28) to the right. Can be shifted to the empty tablet state shown in FIG.

<Locking / unlocking device / empty lock>
In the unlocked state shown in FIG. 6B, the knob 16 is in the locking position rotated to the right, and the lock cam 28 into which the knob 16 is fitted and the cam 18 fixed to the lock cam 28 are also locked. In position. Further, in this empty lock state, the slider 24 is pushed by the lock cam 28 interlocked with the knob 16 and is brought to the right side in the case 12 against the urging force of the spring 26. Further, in this empty lock state, as shown in the left side view of FIG. 5C, each of the tip ends of the corresponding sense cams 30 enters the recesses formed on the outer peripheral surfaces of the lock gears 32. The sense cam 30 is biased in a direction away from the case 12 by the spring 31 and is positioned at an allowable position that allows the lock cam 28 to rotate (not engage with the lock cam 28). That is, in this unlocked state, the cam 18 is in the locked position and the door (not shown) is prohibited from being opened and closed, but the locking / unlocking device 20 is turned to the left by rotating the knob 16 to the left (a). It is a state that can be shifted to the unlocked state shown in FIG. Further, when any one of the lock gears 32 is rotated via the dial 34 in this empty lock state, the tip of the sense cam 30 that has entered the recess of the lock gear 32 is removed as shown in FIG. Retreating from the lock gear 32, the sense cam 30 is rotated in the direction close to the case 12 against the urging force of the spring 31, and the rotation of the lock cam 28 is restricted as shown in FIG. It moves to the restriction position (engaged with the lock cam 28) and enters the locked state described next.

<Locking / unlocking device / locking state>
In the locked state shown in FIG. 4D, the knob 16 is in the locked position rotated to the right, and the lock cam 28 into which the knob 16 is fitted and the cam 18 fixed to the lock cam 28 are also in the locked position. It is in. Further, in this locked state, the sense cam 30 is positioned at a restriction position where the rotation of the lock cam 28 is restricted (engaged with the lock cam 28), and the knob 16 fitted in the lock cam 28 is also restricted from turning. (Cannot rotate left). That is, this locked state is a state in which the cam 18 is in the locked position and prohibits the opening and closing of the door (not shown), and unless the sense cam 30 is moved to the above-described allowable position by the dial 34 and the lock gear 32 (the dial lock). When ten users set the numbers given to the four dials 34 to a predetermined combination, all of the tip ends of the corresponding sense cams 30 enter all the recesses of the lock gear 32, and the sense cams 30 are locked cams. In other words, the locking / unlocking device 20 cannot be shifted to the unlocking state shown in FIG.

<Search device>
Next, the search device 40 will be described. As shown in FIGS. 4 and 5, the search device 40 includes a cylindrical inner cylinder 42 that can be attached to and detached from the inner case (outer cylinder) 22, and an inner cylinder 42 that is engaged with the inner cylinder 42, and that rotates around the axis. A cylindrical inner cylinder tail 44 that is rotatable, a plate-like coupling bar 46 that is slidable in the vertical direction, and is engaged with a protruding part that projects from the inner cylinder tail 44, and can be engaged with the coupling bar 46 The second sense cam 48 that can be rotated between a position that can be engaged with the outer peripheral surface of the lock gear 32 and a position that is separated from the lock gear 32, and a plurality of disc tumblers incorporated in the inner cylinder 42 A search key 50 (see FIGS. 7 and 8) for releasing the engagement between the inner cylinder 42 and the inner case 22 by retreating from the inner cylinder 22, and an inner cylinder replacement key 52 that allows the inner cylinder 42 to be exchanged (detached). (See FIG. 9 and the like).

  Next, the movement of the search device 40 will be described. FIG. 7A is an external perspective view showing a state where the search key 50 is inserted into the inner cylinder 42 as viewed from the front, and FIG. 7B is a rear view showing the state where the search key 50 is inserted into the inner cylinder 42. It is an external appearance perspective view which sees and shows a part of components while seeing from. FIG. 8A is a schematic diagram showing a state of the search device 40 when the search key 50 is inserted into the inner cylinder 42. FIG. 8B is a diagram in which the search key 50 is turned to the right to perform a search. It is the schematic which shows the mode of the search device 40 when it starts, and the figure (c) is a schematic diagram which shows the mode of the search device 40 when the search key 50 is turned to the right side and a search is complete | finished.

  7 and 8A, when the search key 50 is inserted into the key hole of the inner cylinder 42, the disc tumbler protruding from the inner cylinder 42 is accommodated in the inner cylinder 42, and the inner cylinder 42 and the inner case The engagement of 22 is released, and the inner cylinder 42 is in a state of being rotatable about the axis with respect to the inner case 22. Next, as shown in FIG. 8 (b), when the search key 50 is turned to the right and the inner cylinder 42 is rotated clockwise, the inner cylinder tail 44 engaged with the inner cylinder 42 is also rotated in the same clockwise direction. To turn. When the inner cylinder tail 44 rotates clockwise, the connecting bar 46 engaged with the protruding portion of the inner cylinder tail 44 is slid upward, and the second sense cam 48 engaged with the connecting bar 46 is It is rotated from the position separated from the lock gear 32 shown in FIG. 8A to a position engageable with the outer peripheral surface of the lock gear 32 shown in FIGS. In this state, as shown in FIG. 5C, when the lock gear 32 is rotated via the dial 34, the tip of the second sense cam 48 enters the recess of the lock gear 32, and the dial 34 and the lock gear 32. Becomes unrotatable. The same operation is performed on all the dials 34, and when all the dials 34 and the lock gear 32 are unable to rotate, the above-described unlocked state (the cam 18 is in the locked position and the door Although it is in a state that prohibits opening and closing (not shown), it is configured such that the locking and unlocking device 20 can be shifted to the unlocked state by rotating the knob 16 to the left. That is, by performing the search operation shown in FIGS. 8A to 8C using the search key 50, it is possible to search for the password of the dial lock 10 (a combination of numbers on the dial 34).

<Search key and inner cylinder exchange key>
Next, the search key 50 and the inner cylinder exchange key 52 will be described. FIG. 9A is a photograph showing an example of the search key 50 and the inner cylinder exchange key 52 that can be inserted into the keyhole of the inner cylinder 42, and FIG. 9B shows that the search key 50 is inserted into the inner cylinder 42. FIG. 6C is a photograph showing a state in which the inner cylinder exchange key 52 is inserted into the inner cylinder.

  As shown in FIG. 2A, the search mechanism 40 includes the search key 50 described above and an inner cylinder exchange key 52 having a longer keyway than the search key 50. As shown in FIGS. 5B and 5C, among the plurality of disc tumblers provided in the inner cylinder 42, the disc tumbler 42a disposed at the position farthest from the keyhole entrance is the key groove of the search key 50. While the portion cannot be engaged and cannot be moved by the search key 50, it can be engaged with the keyway portion of the inner cylinder replacement key 52, and only by the inner cylinder replacement key 52. It has a structure that can be moved.

<How to replace the inner cylinder>
Next, a method for replacing the inner cylinder 42 will be described. FIG. 10A is a photograph of the inner cylinder 42 that is fitted in the inner case 22 and in which neither the search key 50 nor the inner cylinder exchange key 52 is inserted, from the rear side. FIG. FIG. 5C is a photograph of the inner cylinder 42 fitted in the inner case 22 and the search key 50 inserted from the back side, and FIG. 10C is a picture fitted in the inner case 22 and the inner cylinder exchange key 52. It is the photograph which copied the inner cylinder 42 in the state of having inserted from the back side.

  As shown in FIG. 3A, the inner case 22 has an inner cylinder insertion hole 22a having an inner diameter substantially the same as the outer diameter of the inner cylinder 42, and a rectangular groove 22b continuous to the inner cylinder insertion hole 22a. Is formed. On the other hand, the innermost disc tumbler 42a of the inner cylinder 42 is inserted when the search key 50 or the inner cylinder exchange key 52 is not inserted or when the search key 50 is inserted, as shown in FIGS. In this case, the protrusion having a shape larger than the groove 22b of the inner case 22 is configured to protrude from the outer peripheral surface of the inner cylinder 42, and when the inner cylinder replacement key 52 is inserted, the projection (c) of FIG. As shown, instead of the protrusions shown in FIGS. 4A and 4B withdrawing into the inner cylinder 42, protrusions having a shape complementary to the groove 22b of the inner case 22 are formed from the inside of the inner cylinder 42. It is comprised so that it may protrude.

  Therefore, as shown in FIG. 5B, when the search key 50 is inserted into the inner cylinder 42, the protruding portion of the disk tumbler 42a (the protruding portion having a shape larger than the groove portion 22b) is the groove portion of the inner case 22. The inner cylinder 42 cannot be inserted into the inner cylinder insertion hole 22a of the inner case 22, or cannot be extracted from the inner cylinder insertion hole 22a. On the other hand, as shown in FIG. 5C, when the inner cylinder replacement key 52 is inserted into the inner cylinder 42, the protrusion of the disk tumbler 42a (protrusion having a complementary shape to the groove 22b) passes through the groove 22b. Therefore, the inner cylinder 42 can be inserted into the inner cylinder insertion hole 22a of the inner case 22 or extracted from the inner cylinder insertion hole 22a.

<Dial lock series>
FIG. 11 is a conceptual diagram showing the concept of a series of dial locks including a plurality of the above-described dial locks 10.

  As described above, the dial lock 10 is a finished product in which all the members are assembled, and only the inner cylinder 42 is attached and detached using the inner cylinder replacement key 52, so that the inner cylinder 42 can be removed without removing the members other than the inner cylinder 42. Only 42 can be exchanged. Similarly, in the finished product of the dial lock 10, the cam 18 can be replaced only by removing the screw 17 and detaching the cam 18 without removing the members other than the screw 17 and the cam 18. Is possible. Further, since the knob 16 is fitted in the lock cam 28, the knob 16 can be exchanged (detached).

  That is, as shown in FIG. 11, if a plurality of types of inner cylinder 42, cam 18, and knob 18 are prepared to be exchangeable with respect to a common member, members other than the inner cylinder 42, cam 18, and knob 18 are made common. Therefore, cost reduction and development time can be shortened, and versatility can be improved. Further, in accordance with the request of the user of the dial lock 10, one inner cylinder 42 is selected from a plurality of types of inner cylinders (for example, inner cylinders having different key holes) 42a, 42b,. For example, one cam 18 is selected from among cams 18a, 18b,... Having different shapes, and one knob 18 is selected from a plurality of types of knobs (for example, knobs having different shapes and colors) 18a, 18b,. Since it becomes possible to select, the variation of a dial lock can be increased.

  As described above, the dial lock 10 according to the present embodiment includes the cam (for example, the cam 18) that can move from one of the locking position and the unlocking position to the other, and the cam as the locking position and the unlocking position. A locking state that makes the knob non-rotatable when the cam is in the locking position by a combination of a knob (for example, the knob 16) that is moved from one side to the other and a plurality of dials (for example, the dial 34), Alternatively, when the cam is in the unlocked position, the locking / unlocking device (for example, the locking / unlocking device 20) that can be set in an unlocked state that allows the knob to rotate, and the locking / unlocking device from the locked state In a dial lock configured to include a search device (for example, search device 40) for searching for a combination of the plurality of dials to be in an unlocked state, the search device includes: A lock (for example, inner cylinder 42) and a key (for example, search key 50) for enabling the search are provided, and the lock can be exchanged without removing members other than the lock in the finished product. It is a dial lock characterized by.

  According to the dial lock 10 according to the present embodiment, the versatility is higher than the conventional one, and the cost can be reduced and the development period can be shortened.

  Further, in the finished product, the cam and the cam may be configured to be replaceable without removing any members other than a fixing member (for example, screw 17) for detachably fixing the cam to the locking / unlocking device. .

  With such a configuration, the cam can be easily changed according to the structure of the door on which the dial lock is installed or the user's request.

  Moreover, in the series of dial locks provided with a plurality of types of the above-described dial locks, a plurality of types of the lock or the cam may be prepared so as to be exchangeable for a common member.

  With such a configuration, the lock and cam can be easily changed according to the structure of the door where the dial lock is installed and the user's request etc., and only by preparing multiple types of locks and cams, Dial lock variations can be easily increased.

  The configuration of the dial lock according to the present invention is not limited to the configuration of the dial lock 10 described above. For example, all of the inner cylinder, the cam, and the knob are replaced. However, for example, only the inner cylinder is configured to be replaceable. Alternatively, only the inner cylinder and the cam may be configured to be replaceable. Further, although the inner cylinder is configured with a disk tumbler type lock, it may be configured with another type of lock such as a pin tumbler type.

  The dial lock according to the present invention can be applied as a lock for a locker, a cabinet or the like.

10 dial lock 12 case 14 decorative plate 16 knob 18 cam 22 inner case 24 slider 26, 31, 39 spring 28 lock cam 30 sense cam 32 lock gear 34 dial 36 dial shaft 38 latch 42 inner cylinder 44 inner cylinder tail 46 connection bar 48 second Sensecam 50 Search key 52 Inner cylinder exchange key

Claims (3)

A cam movable from one of a locked position and an unlocked position to the other;
A knob for moving the cam from one of the locking position and the unlocking position to the other;
A combination of a plurality of dials that locks the knob when the cam is in the locked position, or unlocks the knob when the cam is in the unlocked position. A locking / unlocking device that can be set to a state;
In a dial lock configured to have a search device for searching for a combination of the plurality of dials for changing the lock / unlock device from the locked state to the unlocked state,
The search device includes a lock and a key for enabling the search,
A dial lock characterized in that the lock can be replaced without removing members other than the lock in the finished product. In claim 1,
A dial lock characterized in that, in a finished product, the cam and the cam can be replaced without removing a member other than a fixing member for detachably fixing the cam to the locking / unlocking device. In a series of dial locks comprising a plurality of types of dial locks according to claim 1 or 2,
A series of dial locks characterized in that a plurality of types of the lock or the cam can be exchanged for a common member.