JPH0647890B2 - Dial lock device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to a dial lock device implemented on an opening / closing door of, for example, a safe, a locker, or a valuable storage.

<Prior Art> For example, a conventional rental locker is provided with a lock device that opens and closes with a unique key for each locker. In the case of this type of lock device, the locker user carries the key around, which makes it easy to lose the key and causes a theft accident.

This problem can be solved by using a dial lock device that does not require a key. This dial lock device has a structure provided with a plurality of dials on the peripheral surface of which numbers for setting unlocked numbers are displayed.As this type of dial lock device, the unlocked numbers are fixedly determined. There is a type that allows you to set the unlocking number freely.

<Problems to be Solved by the Invention> In this type of dial lock device, for example, it is necessary to operate each dial to shift the unlocked number after closing the opening / closing door of the locker, but operate each dial individually. Since it is necessary to operate the locker, it is troublesome to operate, and it is very troublesome for the locker user. In addition, there is a risk that the operation will be forgotten and it will be left unlocked, and even if the operation is performed, it is insufficient, so there is a problem that the unlock code is easily detected and unlocked. is there.

The present invention has been made in view of the above-mentioned problems, and by allowing each dial to be forcibly rotated individually by one-touch operation to make the unlock code deviate, operability, safety, and reliability can be achieved. It is an object of the present invention to provide a dial lock device in which

<Means for Solving Problems> The present invention is a dial lock device mounted and fixed to a movable side of a door or the like, in which an engaging member that engages with and disengages from a mating member on the fixed side and an engaging member is operated. An operating member that can be manually operated,
It is composed of a movable member that responds to a manual operation of the operating member, a dial lock having an operating shaft that engages and disengages with the movable member by a reciprocating motion, and a dial return mechanism that is arranged to be linked to the dial lock.

The dial lock is rotatably arranged on the actuating shaft and has a plurality of dials on the peripheral surface thereof for indicating numbers for setting unlocking numbers, and allows the reciprocating motion of the actuating shaft when aligning the unlocking numbers. When the unlocked numbers are misaligned, a reciprocating motion of the operating shaft is regulated to generate unlocked and locked states.

Further, the dial return mechanism, a manually operable operation unit, a support shaft arranged in parallel with the operating shaft of the dial lock, a plurality of gears provided integrally with each dial of the dial lock, A transmission gear that is rotatably provided on the support shaft and meshes with the gears; an eccentric cam that is integrally provided with the transmission gear; and an operation unit that is interposed between the operation portion and the eccentric cams. And an operating arm that rotates each eccentric cam to a fixed position in response to an operation of the section.

<Operation> When the door is closed and the operating member is operated to engage the engaging member with the mating member on the fixed side, the operating arm is operated to rotate each eccentric cam to the fixed position. The transmission gears are also rotated. Since the gear integrally provided on each dial meshes with the transmission gear, each dial is forcibly rotated by the rotation of the transmission gear, and the unlocked numbers in the aligned state are deviated.

<Embodiment> FIGS. 1 to 3 show a dial lock device according to an embodiment of the present invention.

This dial lock device is provided at a portion of the handle 10 of the opening / closing door 1 and is engaged with and disengaged from a lock recess (not shown) on the main body side, and an operation lever 15 connected to the cam plate 13. Link 17 to the cam plate 13
The operation lever 15 and the cam plate 1 are connected to each other via the
3 and a lock device 2 that regulates the movement of the device 3.

As shown in FIG. 3, the handle 10 has a mounting recess 12 formed integrally with one side edge of a handhold recess 11.
2 is attached to the edge of the opening / closing door 1 in alignment.

The base ends of the cam plate 13 and the operating lever 15 are pivotally fixed to the mounting portion 12. Cam plate 13
A slit hole 14 is provided near the pivot stop portion, and the end portion of the link 17 is pivotally connected to the slit hole 14 by a pin 18. Further, the operating lever 15 is provided with a slit hole 16 in the shaft body portion, and with respect to the slit hole 16,
A central portion of the length of the link 17 is pivotally connected by a pin 19. Therefore, the operation lever 15 is operated to operate the link 17
Is moved up and down, the cam plate 13 moves up and down,
Engage in the lock recess on the main unit side.

The lock device 2 is for restricting the vertical movement of the link 17 and the up-and-down motion of the cam plate 13. As shown in FIGS. 4 and 5, the reset lock mechanism 3, the operating plate 4, and the dial lock 5 are provided. Composed of and.

The reset lock mechanism 3 is provided in the lock case 20, has a gear 31 formed on the peripheral surface of the outer cylinder 30, and the output shaft 3 of the inner cylinder 32.
3 is provided with a pinion 34. A rack plate 35 meshes with the pinion 34, and the rack plate 35 is connected to the cam plate 13 via the link 17.

The operating plate 4 is slidably provided in the lock case 20, and has a recess 40 on the side surface and a rack 4 at one end portion on the lock device 2 side.
1 is formed. The rack 41 has the lock mechanism 3
Mesh with the gear 31 of the.

The dial lock 5 has a shaft end that is a recess 40 of the operating plate 4.
It has an actuating shaft 50 which is engaged with and disengaged from the actuating plate 4 to regulate the movement of the actuating plate 4, and a plurality of dials 54 supported by the actuating shaft 50 via bushes 53.

The reset lock mechanism 3 is used when the locker user forgets the unlocked number of the dial lock 5, and a cylinder lock is used in this embodiment. As shown in FIG. 4, the lock mechanism 3 includes an output shaft 30 in which a pinion 34 is locked in an outer cylinder 30 having a gear 31 formed on the outer peripheral surface thereof.
A side bar (not shown) is provided on the shear line between the inner and outer cylinders, and the side bar is activated by inserting a reset key into the inner cylinder 32. A disc tumbler (not shown) that allows the inner cylinder 32 to rotate freely is provided. When the reset key is not inserted, the inner cylinder 32 and the outer cylinder 30 are integrated by the side bar. Therefore, when the link 17 reciprocates, the inner cylinder and the outer cylinder are integrated together via the rack plate 35 and the pinion 34. Rotate forward and backward.

The operating plate 4 that meshes with the gear 31 of the outer cylinder 30 reciprocates due to the integral rotation of the inner and outer cylinders. When the cam plate 13 is in the position of engaging the lock receiving portion, the recess 40 of the operating plate 4 is engaged.
Engage with the shaft end of the operating shaft 50 of the dial lock 5 at a corresponding position.

The dial lock 5 includes an operating shaft 50 reciprocally provided in a lock case 20 orthogonal to the operating plate 4, a spring 52 for elastically biasing the operating shaft 50 toward the operating plate 4, and an operation. A plurality of dials 54 are rotatably supported on the shaft 50 via bushes 53, and a part of the outer periphery of each dial 54 is projected from the window hole 21 of the lock case 20 to the outside of the case.

A plurality of protrusions 51 are provided on the axial side surface of the operating shaft 50 at equal intervals, while in the inner hole of the bush 53 of each dial 54, as shown in FIG. One projection engagement groove 55 that engages with and disengages from 51 is formed. The numbers 1, 2, 3, ... Are shown on the outer periphery of the dial 54, and any of the numbers corresponds to the convex engaging groove 53. The operating shaft 5
0 is the convex 51 on the shaft and the convex engaging groove 55 of each dial 54.
When the above condition is satisfied, the cam plate 13 is moved up and down to cause the link 17 to reciprocate, the reset lock mechanism 3 to rotate forward and backward, and the actuating plate 4 to reciprocate to perform a sliding motion.

On the inner circumference of each dial 54 and the outer circumference of the bush 53, there are formed as many ridges 56 and grooves 57 as the numbers on the outer circumference of the dial 54. Adjacent bushes 53 abut their end faces and springs. By 58, the ridge 56 and the concave groove 57 are elastically biased so as to separate from each other. Bushing 53 closest to operating plate 4
An actuating piece 59 is projected from a, and the actuating piece 59 can be engaged with the lower portion 43 formed on the actuating plate 4.

Therefore, when the cam plate 13 is in the release position, it is pushed out from the recess 40 of the operating plate 4 of the operating shaft 50, and each protrusion 51 on the operating shaft 50 has a protrusion engaging groove 5 of each bush 53.
5 is engaged. On the other hand, the bush 53a is the operating piece 5
9 is located in the lower portion 43 of the operating plate 4, and is displaced to the operating plate 4 side together with each bush 53 by the spring force of the spring 58. As a result, the ridges 56 and the concave grooves 57 between the dials 54 and the bushes 53 are disengaged from each other, and the dials 5 are separated from each other.
4 is freely rotatable, and a new unlocked number is set by adjusting the desired number of each dial 54 on the line 22.

4 to 6 show a dial returning mechanism 6 for returning the numbers of the dials 54 to zero all at once. The dial return mechanism 6 includes a gear 60 integrally formed on the side surface of each dial 54 and a transmission gear 62 that meshes with each gear 60.
Have and. Each transmission gear 62 is rotatably supported on a support shaft 61 arranged parallel to the operating shaft 50, and the side surfaces of each transmission gear 62 have two curved cam surfaces 63a and 63b.
An eccentric cam 63 having the above is arranged. A push button 64 is provided on the lock case 20, and an operating arm 65 that pushes back each eccentric cam 63 to a predetermined position is chained to the push button 64. The operating arm 65 is elastically urged toward the push button 64 by the spring 66, so that the upper end of the push button 64 is pushed out of the case.

Therefore, set the number used to unlock each dial 54,
Further, when the push button 64 is pressed after the cam plate 13 is engaged with the lock receiving portion, the operating arm 65 causes the eccentric cam 6 to move.
3, any one of the cam surfaces 63a, 63b is pressed, each dial 54 is simultaneously rotated via each transmission gear 62 and gear 60, and the zeros of each dial number are aligned on the line 22 of the lock case 20. .

The lock device 2 is provided with a means for searching for an unlocked number when the number used for unlocking is forgotten or when the number is accidentally locked without looking at the number.

This search means is provided on the back surface of the lock case 20 for each bush 5.
3 is provided with a search pin 7 facing and communicating with each other, while each bush 53 is provided with a pin hole (not shown) facing the search pin 7, and a predetermined reset key is provided on the inner cylinder 32. , The side bar between the inner and outer cylinders is retracted from the shear line, the cam plate 13 is released from the lock recess by a key operation, and then the search pin 7 is pushed, and when the corresponding dial 54 is turned, the search pin When the pin hole corresponds, the pin 7 engages with this and stops. At this time, a number for unlocking is located on the line 22. With this, it is possible to deal with forgetting the number.

Further, in this embodiment, a regulating means is provided for limiting the visible range of the numbers on the outer periphery of each dial 54 of the dial lock 5 to the front side of the dial 54.

This restricting means is composed of each dial 54 and the lock case 20, and each dial 54 has an operation that protrudes to one side of the dial main body 541 in which a numeral 36 of 1 to 0 is arranged on the outer circumference. Provided with a flange 542, while the lock case 2
No. 0 has a slit-shaped window hole 211 to which the operation flange 542 fits, and a series of transparent windows 212 corresponding to one numeral on the outer circumference of the dial main body 541 are formed on one side of the window hole 211. With such a configuration, a part of the operation flange 542 protrudes from the slit-shaped window hole 211 to shield the side of the transparent window 212, and the dial main body 54 is provided inside the transparent window 212.
One numeral 36 on 1 is located to limit the visible range of the numeral 36 to the front side of the dial 54.

7 and 8 show the handle 10 and the operating lever 15.
Another embodiment will be described.

In this embodiment, the handle 10 is provided with a flange-shaped mounting portion 12 on the outer periphery of the recess and is fitted and fixed in the mounting hole of the opening / closing door 1. The operation lever 15 is rotatably pivoted at the center of the recess, and the cam plate 13 is directly fixed to the angular shaft of the operation lever 15. The cam plate 13 is provided with a long hole 14 at an appropriate position, and the end of the link 17 is pivotally connected to the long hole 14 via a pin 18.

However, when the cam plate 13 is not engaged with the lock recess, the operating shaft 50 of the dial lock 5 engages with the recess 40 of the operating plate 4, and each projection 51 on the operating shaft 50 is dialed. It is located within 54. On the other hand, each bush 53
The operating piece 59 is located in the lower portion 43, the engagement between the ridge 56 and the groove 57 is released, and each dial 54 is attached to each bush 53.
It is in a state where it can rotate freely.

At this time, an arbitrary number used for unlocking is aligned on the dial stop line 22 of the lock case 20.

Next, when the operation lever 15 of the handle portion is operated to engage the cam plate 13 with the lock concave portion on the main body side, the rack plate 35 slides via the link 17. Rack board 3
5, the inner cylinder 32 and the outer cylinder 30 of the lock mechanism 3 are integrally pivoted through the pinion 34, and the operating plate 4 is slid through the gear 31 and the rack 41.
The recess 40 of the operating plate 4 is located corresponding to the operating shaft 50. At this time, the end of the actuating shaft 50 engages with the recess 40, and the actuating piece 59 of the bush 53 a is located on the surface portion 42 of the actuating plate 4. The ridge 56 between each dial 54 and each bush 53
And the concave groove 54 are engaged with each other, while each convex element 51 on the actuating shaft 50 is engaged.
Is released from each convex engaging groove 55, and the unlocked number is set.

In this state, when the push button 64 of the zero return mechanism 6 is pressed, the operating arm 65 rotates the corresponding eccentric cam 63, and the dials 5 and 5 are moved through the transmission gear 62 and the gear 60.
4 are rotated in unison so that the number zero of each dial 54 is aligned with the line 22 of the lock case 20. As a result, the protrusions 51 and the protrusion engagement grooves 55 are displaced from each other, so that the operation shaft 50 is prevented from moving and the locked state is maintained.

When unlocking, first, when the unlocking numbers of the dials 54 set previously are positioned on the dial stop line 22 of the lock case 20, the positions of the protrusions 51 and the protrusion engagement grooves 55 are aligned. After matching, the cam plate 13 is disengaged from the lock recess by reversely operating the operation lever 15. By operating the operating lever 15, the rack plate 35 slides,
The actuation plate 4 slides due to the rotation of the inner cylinder 32 and the outer cylinder 30, and the actuation shaft 50 moves backward against the spring force. As a result, the protrusions 56 and the recessed grooves 57 between the dials 54 and the bushes 53 are disengaged, and the dials 54 are allowed to freely rotate so that a new unlocked number can be set.

If you forget the number for unlocking or if you accidentally lock it without looking at the number, you can unlock it by using the lock case 20
The slide type lock door 23 provided on the above is opened, and the reset key is inserted into the key hole of the lock mechanism 3. As a result, the disc tumbler operates the side bar, and the inner cylinder 32 can rotate independently. In this state, by rotating the reset key, the inner cylinder 32 is axially rotated while leaving the outer cylinder 30, and the rack plate 35 is inserted through the pinion 34 of the inner cylinder 32 and the rack of the rack plate 35. And the link 17 moves, and the cam plate 13 operates. After that, the door is opened, the search pin 7 on the back side of the lock case 20 is inserted while turning the dial 54, the pin hole of the bush 53 is searched, the unlocked number is confirmed, and the forgetting number is processed.

<Effects of the Invention> As described above, according to the present invention, since the dials are forcibly rotated individually by the manual operation of the operating portion to distort the unlocked numbers, it is extremely difficult to distort the unlocked numbers for locking. There is an effect that it becomes easy and operability, safety and reliability can be greatly improved.

[Brief description of drawings]

FIG. 1 is a front view showing the outer appearance of a dial lock device according to an embodiment of the present invention, FIG. 2 is an enlarged sectional view taken along the line AA in FIG. 1, and FIG. 3 is a portion of a cam plate and an operating lever. 4 is a sectional view taken along the line BB in FIG. 5, FIG. 5 is a front view showing the internal structure of the lock device, and FIG. 6 is a side view showing the dial return mechanism. FIG. 7 is a front view showing another embodiment of the handle and the operating lever, and FIG. 8 is a sectional view taken along the line CC of FIG. 1 …… Open / close door, 13 …… Cam plate 15 …… Operating lever, 4 …… Operating plate 5 …… Dial lock, 50 …… Operating shaft 51 …… Convex, 53 …… Bushing 54 …… Dial, 55… … Protrusion engaging groove 6 …… Dial return mechanism 60 …… Gear, 61 …… Spindle 62 …… Transmission gear, 63 …… Eccentric cam 64 …… Push button, 65 …… Operating arm

Claims (1)

[Claims] 1. A dial lock device mounted and fixed to a movable side such as a door, comprising: an engaging member that engages and disengages with a mating member on the fixed side; and an operating member that can be manually operated to operate the engaging member. A dial lock having a movable member that responds to a manual operation of the operation member, an operating shaft that engages and disengages with the movable member by a reciprocating motion, and a dial return mechanism that is arranged to be linked to the dial lock. , A plurality of dials that are freely rotatably arranged on the actuating shaft and on which the numbers for setting the unlocking numbers are displayed on the peripheral surface, and when the unlocking numbers are aligned, the reciprocating motion of the actuating shaft is allowed and A lock mechanism that regulates the reciprocating motion of the operating shaft when misaligned to generate unlocked and locked states, and the dial return mechanism includes a manually operable operation unit and an operating shaft of the dial lock. And a spindle installed in parallel with A plurality of gears provided integrally with each dial of the lock, a transmission gear that is rotatably provided on the support shaft and meshes with the gears, and an eccentric cam provided integrally with the transmission gears. And a working arm interposed between the operating portion and each eccentric cam, and operating arm for rotating each eccentric cam to a fixed position in response to an operation of the operating portion.