JPS62153473A - Lock apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a lock device applied to opening/closing parts of safe deposit boxes, lockers, automatic teller machines, game machines, and various other devices.

<Background of the Invention> Conventionally, for example, rental lockers are equipped with locks that can be opened and closed using a unique key for each locker, and therefore, locker users have to carry the keys with them, resulting in theft accidents due to loss of locker keys. are occurring frequently. To resolve this,
This can be solved by using a code lock that uses numbers 1 to 0, which does not require a key, but in the case of a code lock, there is a risk that the set numbers may be seen when the lock is locked. Since an unlock code is set for each lock, anyone else can unlock the lock by memorizing the number, which requires a great deal of effort to manage.

For this reason, recently in the industry, the previous setting code is mechanically cleared when the lock is unlocked, and the user can freely set the order and number of digits to lock the lock, and the lock can be unlocked by operations other than the set order. Although there is a strong desire for an impossible locking device, no such device currently exists.

<Objective of the Invention> An object of the present invention is to provide a novel locking device that has a completely mechanical structure, does not use any power source, and can satisfy the above requirements.

<Description of Embodiments> The drawings show a combination lock as an embodiment of the lock device according to the present invention.

The above-mentioned combination lock is constructed inside a housing 1 that is installed and fixed on the movable side of a door, etc., and is supported so that it can reciprocate with respect to the housing 1. It is composed of a put bolt 2 that engages and disengages from a lock hole, an operating mechanism 3 consisting of a lever or cylinder lock 31 that reciprocates the dead bolt 2, and a bush type code lock 4 that restricts the operation of the dead bolt 2.

The cylinder lock 31 constituting the operating mechanism 3 includes an outer cylinder 32 fixed to the housing 1, an inner cylinder 33 rotatably fitted into the outer cylinder, and a plurality of free holes filled in the inner cylinder. This key-operated lock has a disc and a side bar that is retracted from the shear line by inserting a proper key between the inner cylinder and the outer cylinder, and the end of the inner cylinder 33 is extended from the outer cylinder. A latch lever 34 having an operating pin is pivoted, and the operating pin is engaged with the operating hole 21 of the put bolt 2.

The code lock 4 includes a plurality of push buttons 41 aligned and arranged on the front wall of the housing 1, and a memory gear 6 which is connected to each push button 41 via a set gear 5 and rotates intermittently in conjunction with the button operation of the push button 41. a gate gear 7 which is disposed adjacent to the set gear 5 so as to be able to reciprocate in the axial direction and has a notched recess 74 on its outer periphery and a gear 73 that engages and disengages with the set gear 5; Convex portion 82
The gate plate 8 is arranged between the put bolt 2 and the gate gear 7, and is interlocked with the operation of the put bolt 2 to engage and disengage the gate gear 7 and the gate plate 8, and following this engagement and disengagement, the gate gear 7 and the set gear 5 a timing lever 9 for engaging and disengaging, an operating mechanism 3, and a memory gear 6.
A reset mechanism 10 is provided between the timing lever 9 and the reset mechanism 10 for returning the memory gear 6 and the gate gear 7 to their original states in conjunction with the operation of the timing lever 9.

Each of the push buttons 41 is provided with a flange plate 42 at the base end, and this flange plate 42
A spring is interposed between the partition wall 43 in the housing, and a gear center arm 44 is installed on one side of the flange plate 42.
is a combination of words.

The gear set arm 44 is supported by the partition wall 43 so as to be movable up and down, and has an operating piece 45 at the bottom corresponding to the safety gear 5.
has been established.

The cent gear 5 is connected to a pivot 51 disposed in the housing 1.
A plurality of gears 5 are rotatably supported along with the push button 41. 8 and 9 on the circumferential surface of each set gear 5.
As shown in the figure, a transmission gear 53 that meshes with the memory gear 6 and the gate gear 7 is formed on the other peripheral surface of the set gear arm 44, leaving a portion adjacent to the ratchet gear 52 and the memory gear 6. Each set gear 5 rotates by one pitch when the set gear arm 44 is lowered by operating the push button 41, meshing with the memory gear 6, and rotating the memory gear 6 by one pitch.

The memory gear 6 is a single-shaft gear arranged parallel to the set gear 5, and is shown in FIG.

As shown in FIG. 7, a plurality of gears 61 having the same pitch and the same number of teeth as the transmission gear 53 are formed around the shaft in correspondence with the transmission gear 53 of each set gear 5, and at one end of the memory gear shaft. A latch gear 62 having the same number of teeth is provided to engage a latch pawl 63 that allows rotation in one direction, and a safety cam 64 that engages and disengages from the stop hole 23 of the dead bolt 2 is fixed to the other end.

The gate gear 7 is constructed by rotatably supporting a plurality of gears 7 on a pivot shaft 72 provided on a movable holder 71 in accordance with the set gear 5 . A gear 73 having the same pitch and the same number of teeth as the gear 61 of the memory gear 6 is provided on the circumferential surface of each gate gear 70.
, and a notch recess 74 is formed continuously to the gear 73,
The gate gear 7 is connected to the Punto bolt 2 by a timing lever 9, and when unlocking, the gear 73 is connected to the set gear 5.
The protrusion 8 of the gate plate 8 is separated from the notch recess 74.
2 are engaged with each other.

The gate plate 8 is a single plate disposed below the set gear 5 and the memory gear 6 as shown in FIGS. 12 and 13, and has a negative side bent toward the gate gear 7.
Concave portions 81 that engage with the gate gear 7 and convex portions 82 that engage with the notched concave portions 74 of the gate gear 7 are alternately formed, and the gate plate 8 is connected to the timing lever 9 via a pin 93 to control the operation of the timing lever 9. The convex portions 82 are moved in the axial direction of the gate gear 7, and the convex portions 82 are simultaneously engaged with and disengaged from the concave portions 74 of the respective gate gears 7.

The timing plate 9 is a swinging plate that engages and disengages the concave portion 74 of the gate gear 7 and the gate plate 8 and the engagement and disengagement between the gate gear 7 and the set gear 5 in a timely manner by the reciprocating motion of the put bolt 2. is pivotally fixed to the base plate of the housing 1 at a proper place, and an actuating pin 92 is provided at the end and approximately in the middle of the base end side of the pivot part 91.
．． 93, and the operating pin 92 at the end is inserted into the put port 2.
The operating pin 93 at the intermediate portion engages with the operating hole 83 of the gate plate 8, and the operating protrusion 94 is provided at the tip of the retaining portion provided on one side of the gate gear holder 71. 75 is engaged. Therefore, when the deadbolt 2 is located at the rearward end, so-called unlocking, each gate gear 7 separates from the set gear 5 and the convex portion 82 of the gate plate 8 is engaged with the notch recess 74. dead bolt 2
When the timing lever 9 moves in the locking direction, the pivot pin 92 is engaged with the locking portion at the end of the operating hole 22 at the same time as the timing lever 9 moves. After the gate gears 7 are removed from the gate gear 7 and the holder 71 is moved to cause the gate gears 7 to mesh with the set gear 5 all at once, the pin 92 is caused to slide through the operating hole 22.

The reset mechanism 10.10a that returns the memory gear 6 and gate gear 7 to their original states is a feature of the present invention, and as shown in FIGS. 6, 7, and 2, the reset mechanism 10.10a is a An arc-shaped permanent magnet 1 forming a pair of north and south poles with respect to the end face of the portion 66 and the support wall 11 facing thereto.
2a and 12b, 13a and 13b are arranged symmetrically around the center of rotation, and when the memory gear 6 is in a free state, the permanent magnets 12a and 13 of the gear 6 and the support wall 11
b, 12b, and 13a are magnetically attracted to each other, and their stable state is aligned with the origin of the memory gear 6.

Furthermore, as shown in FIGS. 10, 11, and 2, the set gear 7 is magnetically attracted to the support wall 11 and the gear 7 at the origin position of the center gear 7. a pair of permanent magnets 12a and 13b,
12b and 13a, and the N and S poles of arc-shaped permanent magnets are arranged alternately for each gear in the adjacent gears 7, so that each set gear 7 returns to its origin when the magnetic force is attracted and stabilized. Eggplant. On the other hand, a swing lever 65 having a latch claw 63 engaged with the launch gear 62 is provided opposite to the latch gear 62 of the memory gear 6.
5, an operating member 14 is provided which swings the latch claw 63 to disengage the latch claw 63 from the gear 62.
An operating piece is integrally provided on the inner cylinder 32 of the cylinder lock 31 in the operating mechanism 3, and the operating piece operates the swing lever 65 to release the latch gear 62 when the put port 2 is located approximately in the middle of the reciprocating motion. It is configured to do so.

The code lock 4 is provided with a button-type reset mechanism 15 for resolving this problem during a button push operation, and an auxiliary unlocking mechanism 18 for use when the locking setting number is forgotten.

The reset mechanism 15 includes a push button 16 provided on the front wall of the housing.
A transmission lever 17 is provided between the oscillating lever 65 and the oscillating lever 65. By pressing the push button 16, the oscillating lever 65 swings and the tip latch pawl 63 engages the latch gear 6.
2, and the memory gear 6 and set gear 7 are returned to their original states by a reset mechanism 10.10a using a permanent magnet.

The auxiliary unlocking mechanism 18 has a concealed window 19 in the housing 1 at a position symmetrical to the operating mechanism 3, and is connected to a master key-operated cylinder lock 3a disposed inside the window and a camshaft 35 of the cylinder lock 3a. A reset plate 55 is slidably provided on the outside of the gear shaft mounting plate 54 and moves the set gear 5 in the axial direction to separate it from the gate gear 7. The lever mechanism 5 swings by the operation of the plate 55, pressurizes the camshaft portion 76 of each gate gear 7, and returns it to its original state.
It consists of 7.

However, in the unlocked state, each cent gear 5 is in a state where it can mesh with the memory gear 6, as shown in FIG.
The gate gear 7 is detached from the set gear 5 and the notch recess 74
The protrusion 82 of the gate plate 8 is engaged with the protrusion 82 of the gate plate 8. At this time, in the memory gear 6, the permanent magnets 12a and 13b, 12b and 13a of the gear boss portion 66 and the support wall 11 attract each other with magnetic force, and the set gear 7 has a permanent magnet between the support wall 11 and the set gear 7 and each adjacent set gear 7. magnets 12a and 1
3b, 12b, and 13a are magnetically attracted to each other, and each maintains the origin of the unlocked state. Now, when locking, press button 41.
Operate the buttons in the order of numbers 1, 2, and 3. First, when pressing the first push button 41, the arm 44 presses the gear 52 of the corresponding set gear 5 to rotate it one pitch.
At this time, the lock arm 58 of the set gear 5 comes off.

Due to the rotation of the set gear 5, the memory gear 6 rotates one pitch against the attraction force of the permanent magnet, and the latch gear 62 at the end of the shaft rotates.
In contrast, the latch pawl 63 is moved one pitch, and the safety cam 64 is released from being fixed to the deadbolt 2.

Next, when pressing the second push button 1041, the arm 44 rotates the corresponding set gear 5 to rotate the memory gear 6 by one pitch, and at this time, the latch pawl 63 for the latch gear 62 and the first push button 41 The corresponding set gear 5 and memory gear 6 are fed two pitches. Next, when pressing the third push button 41, the push button arm 44 rotates the memory gear 6 by one pitch via the corresponding set gear 5, and at this time, the latch pawl 63 relative to the latch gear 62 is pressed.
The cent gear 5 and memory gear 6 corresponding to the No. 1 push button 41 are 3 pitches, the set gear 5 and memory gear 6 corresponding to the No. 2 push button 41 are 2 pitches, and the set gear 5 and memory gear corresponding to the No. 3 push button 41 are 6 is sent with one pitch forward. In this state, when the key is inserted into the cylinder lock 31 and rotated, the deadbolt 2 moves in the locking direction in response to the rotation of the latch lever 34. When the deadbolt 2 starts moving, the swinging displacement of the timing lever 9 causes the gate plate 8 to move in the same direction as the deadbolt 2, and the gate gear holder 71 to move in the opposite direction, and each gate gear 7 meshes with the set gear 5, Each convex portion 82 of the gate plate 8 separates from the concave portion 74 of the gate gear 7.

In conjunction with this operation, the operating piece 13 protruding from the inner cylinder 33 of the cylinder lock 31 rotates, swinging the swinging lever 65, and releasing the latch claw 63 from the latch gear 6z. At this time, the memory gear 6 and the set gear 7 are connected to the permanent magnet 12.
A and 13b, 12b and 13a are rotated to their original state by the suction force, and the gates and toggles 7 that are engaged with the set gears 5 corresponding to the engaged push buttons 41 of numbers 1, 2, and 3 are set respectively. Turn each notch recess 7 by the number of pinches.
4 is displaced from the gate plate 8 by 3 pitches for the first push button 41, 2 pitches for the second push button 41, and 1 pitch for the third push button 41, and the dead bolt 2 is engaged with the fixing hole. The door is kept locked.

When unlocking, press push button 41 with numbers 1 and 2 as in the case of cents.
Buzz in the order of No. 3 and No. 3. When pressing the No. 1 push button 41, the arm 44 rotates the gate gear 7 and the memory gear 6 meshed therewith one pitch through the corresponding set gear 5, respectively, against the attractive force of the permanent magnet.
The concave portion 74 is moved one pitch closer to the gate plate 8, and the latch pawl 63 is advanced one pitch relative to the latch gear 62. Next, when pressing the second push button 41, the arm 44 rotates the gate gear 7 and the memory gear 6 meshed therewith by one pitch through the corresponding set gear 5, and presses the concave portion of the gate gear 7 corresponding to the second push button 41. 74 one pitch closer to the gate plate 8, the gate gear 7 corresponding to No. 1 is rotated one pitch via the set gear 5, the recess 74 of the gate gear 7 is brought one pitch closer to the gate plate 8, and the latch claw 63 moves forward two pitches relative to the launch gear 62. When pressing the No. 3 push button 41, the arm 44 is connected to the gate gear 7 and memory gear 6 meshed with the set gear 5 through the corresponding set gear 5.
1 pitch, and the memory gear 6 rotates the gate gear 7 by 1 pitch through the cent gear 5 corresponding to the 1st and 2nd push buttons 41, and the recesses of the 1st, 2nd, and 3rd gears are rotated. 74 is located opposite the gate plate 8,
The latch pawl 63 is engaged with the latch gear 62 at the three-pinch forward position. In this state, when the key is inserted into the cylinder lock 31 and rotated in the opposite direction, the deadbolt 2 moves in the unlocking direction in response to the rotation of the rough chireher 34.

Simultaneously with the start of movement of the deadbolt 2, the timing lever 9 is oscillated by the engaging portion, pin 92, at the end of the operating hole 22, and the oscillating displacement of the lever 9 causes the gate plate 8 to move.
moves in the same direction as the dead bolt 2, and the gate gear holder 71 moves in the opposite direction, so that each gate gear 7 is separated from the set gear 5, and the convex portion 82 of the gate plate 8 engages with the concave portion 74 of the gate gear 7. In conjunction with this, the actuating piece of the cylinder lock 31 swings the swing lever 65 to release the latch claw 63 from the latch gear 62. At this time, the memory gear 6 and the gate gear 7 have permanent magnets 12a and 13, respectively.
b, 12b and 13a rotate back to their original state by the magnetic attraction force, return the set gear 5 corresponding to the push openings 1, 2, and 3 to their original state, and the deadbolt 2 retreats to the unlocked position. Wait locked.

Above, an example has been described in which the push buttons 41 are pressed in the order of numbers 1, 2, and 3. However, the number of buttons 41 can be set freely by the user. It is possible to freely set a combination such as pressing the buttons 41 several times, pressing each of the plurality of push buttons 41 several times, pressing two buttons at the same time, etc.

For example, when pressing one push button 41 several times,
First, in the first bushing, the corresponding set gear 5 meshes with the memory gear 6 and feeds it one pitch, and at the same time, the latch pawl 63 is advanced one pinch relative to the latch gear 62, and in the second bushing, the same set gear 5 engages with the memory gear 6. 2 pitches on 6, and latch pawl 63 on launch gear 62.
is moved forward by 2 pinches and stored in memory. In this state, when the deadbolt 2 moves in the locking direction as in the previous example, the gate gear 7 meshes with the center gear 5, the gate plate 8 separates from the gate gear 7, and in conjunction with this, the latch pawl 63 engages the latch gear 62. Released, the memory gear 6 rotates to its original state. At this time, the set gear 5 corresponding to the continuously pressed push button 41 rotates the corresponding gate gear 7 by two pitches, and the recess 7
4 is moved two pitches to maintain the locked state. When unlocking, the same push button 41 is pressed twice to perform the same operation as the unlocking described above, so a description thereof will be omitted.

In addition, when pressing two push buttons 41 at the same time, the two set gears 5.5 corresponding to each push button 41 simultaneously rotate the memory gear 6 by 1 pitch, and the latch pawl 63 feeds the latch gear 62 by 1 pitch. engaged in position. In this state, when the put port 2 is moved in the locking direction, the gate gear 7 meshes with the set gear 5, the gate plate 8 separates from the gate gear 7, and in conjunction with this, the latch pawl 63 releases the latch gear 62, and the memory gear 6
rotates. At this time, the center gears 5.5 corresponding to the two push buttons 4141 rotate the meshed gate gears 7.7 by one pitch, and the recessed portions 74 are moved against the gate plate 8.
Shift it one pitch to keep it locked. Same for unlocking 2
By pressing the two pushbuttons 41, 41 at the same time, the same operation as described above is performed.

It should be noted that a combination of repeatedly pressing two same or different push buttons 41 at the same time is also possible, and it goes without saying that any combination requires the same push operation as when unlocking and when pressing.

If the user forgets the setting number when unlocking, by inserting the master key into the cylinder lock 3a of the auxiliary unlocking mechanism 18 and rotating it, the resetting plate 55 will lock the set gear shaft 51. The permanent magnets 12a and 13b, 12b and 13a are moved against the attractive force to disengage the gate gear 7 and set gear 5, while the lever mechanism 57 presses the camshaft portion 76 of each gate gear 7 to rotate each gear 7. After returning to its original state, the recess 74 is made to correspond to the gate plate 8. In this state, by inserting the key into the cylinder lock 31 and rotating it in the unlocking direction, the deadbolt 2 is moved in accordance with the rotation of the latch lever 34. When the dead bolt 2 moves in the unlocking direction, the timing lever 9 is actuated to move the gate plate 8 in the same direction as the put port 2 and the gear holder 71.
is moved in the opposite direction to separate each gate gear 7 from the set gear 5, and the convex portion 82 of the gate plate 8 engages with the concave portion 74 of each gate gear 7. In conjunction with this, the operating piece 13 of the cylinder lock 3 swings the swinging lever 65, releases the latch claw 63 relative to the second gear 62, and locks the memory gear 6.
and gate gear 7 have permanent magnets 12a, 13b, 1, respectively.
The suction force of 2b and 13a causes the deadbolt 2 to return to rotation.
returns to the unlocked position and waits for the next lock.

The present invention provides a lock device having a built-in gear as described above, in which a pair of permanent magnets 12a and 13b, 12b and 13a magnetically attract each other to reset the reset mechanism 10 that returns the gear to its original state.
Since it is constructed using a spring, the device can be made more compact and its operation can be stabilized compared to using a spring or a cent mechanism.

In addition, in the embodiment of the present invention, the operation of the put bolt 2 is regulated by the code lock 4, and the code lock 4 has an unlock number set at the time of locking and is mechanically cleared by unlocking. When applied to rental lockers, safe deposit boxes, etc., users can freely set an unlock number each time they use the system.

In particular, the unlocking number can be freely set as one digit or several memorizable digits, or by pressing the same button repeatedly, and the lock will not be unlocked unless the buttons are pressed in the set order, thereby achieving complete locking. Also a safe deposit box.

In rental lockers, hotel doors, etc., it is expected that all the push buttons will be used by many users on average. There was a risk that the number would be found and the lock would be unlocked, but the present invention can eliminate this problem. In addition, since the combination lock of the present invention has an entirely mechanical structure, it has high robustness and durability as a lock, and unlike electric code locks, it is easy to install without requiring wiring work, and is resistant to water and heat.

There is no risk of electrical failure.

Furthermore, with conventional electric card locks and IC card locks,
In the case of changing the code, it took a lot of effort to collect the cards, manage the change work, etc., but the present invention does not require such things at all.

Moreover, when the cylinder lock 31 is applied to the operating mechanism 3,
The code lock 4 and cylinder lock 31 allow you to set the number of different keys accurately, and even if you have the key, you cannot unlock the lock if you do not know the unlock number, and conversely, even if you know the unlock number, if you do not have the key, the lock cannot be unlocked. Since it cannot be locked, it is suitable for locking valuables lockers, etc.

Furthermore, the code lock 4 of the present invention can be used in such a way that several people memorize the unlock code and each person has the same key. It has many uses including research labs.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an example of a combination lock according to the present invention;
Fig. 2 is a plan view showing the internal mechanism when unlocked, Fig. 3 is a plan view when locked, Fig. 4 is a sectional view taken along line C-C in Fig. 8, and Fig. 5 shows the put bolt and operating mechanism. A side view showing the relationship with the code lock, Figure 6 is a side view of the memory gear, and Figure 7 is the side view of the memory gear.
Figure 8 is a side view of the set gear, Figure 9 is a sectional view taken along line B-B.
The figures are a sectional view taken along the line CC in Figure 8, Figure 10 is a side view of the gate gear, Figure 11 is a sectional view taken along the line CC in Figure 8, Figure 12 is a plan view of the gate plate, and Figure 13 is the gate. It is a front view of a plate. 2...Put bolt 3...Operating mechanism 3a.
... Cylinder lock 4 ... Code lock 41 ...
Push button 5... Set gear 52... Lacent gear 6... Memory gear 62... Latch gear 63... Latch claw 65... Swing lever 7... Gate gear 71... ...Holder 74...Recess 8...Gate plate 82...Protrusion 9...Timing lever 94...Protrusion 10...Reset mechanism 11...Support wall

Claims (3)

[Claims] (1) In a lock device that incorporates a gear that rotates intermittently in one direction, the reset consists of at least a pair of magnets that magnetically attract the gear, a supporting wall that pivots the gear, and an adjacent gear to return the gear to its original state. A locking device comprising a mechanism. (2) The lock device according to claim 1, wherein the gear has a part of its outer periphery protruding from the housing and is activated by fingertip operation or push button operation. (3) The lock according to claim 1, wherein the magnet is an arc-shaped permanent magnet having a pair of north and south poles, and is arranged symmetrically with respect to the rotation center on the support wall or the side surface of the gear. Device.