JPS63210375A - Combination lock - 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 combination lock applied to opening/closing parts of safe deposit boxes, rental lockers, and various other opening/closing parts.

<Prior Art> Conventionally, for example, rental lockers are provided with a lock that can be opened and closed using a unique key for each locker.

<Problems to be Solved by the Invention> Locker users have to carry their keys with them, and there are many incidents of theft due to loss of locker keys. To solve this problem, a code lock using numbers 1 to 0, which does not require a key, can be used. However, in the case of code locks, there is a risk that the set numbers can be seen when the lock is locked, and since code locks have an unlock code set for each lock, if you memorize the number, you can easily However, it can be unlocked, and in order to solve the problem, it takes a lot of effort to manage it.

For this reason, there has recently been a strong demand in the industry for a combination lock that clears the previously set code when unlocked and allows the user to freely set the order of the numbers. does not exist.

Therefore, the present invention aims to provide a new combination lock that solves all the conventional problems at once by providing a combination lock in conjunction with the rotating operation mechanism of the movable hook that engages and disengages from the fixed hook. purpose.

Means for Solving the Problems> To explain in detail the present invention to achieve the above object, the combination lock of the present invention is provided with a rotation operation mechanism supported on a housing and engaged with a fixed hook. It consists of a movable hook that can be removed, and a combination lock that is connected to the operating mechanism and regulates the operation of the operating mechanism.

<Operation> To lock the lock, first turn the dial of the combination lock with your fingertips and set the unlock number at the unlock position marked on the housing. Next, after the movable hook is engaged with the fixed hook by the operating mechanism, the unlocking numerals on the dial are moved from the unlocked position, thereby preventing the operating mechanism from operating and placing both hooks in a locked state.

When unlocking, after returning the unlocking number on the dial to the unlocking position, the movable hook is released from the fixed hook by rotating the operating mechanism, and the lock is unlocked.

<Example> The drawing shows a combination lock according to an embodiment of the invention.

The combination lock is constructed inside a housing 1 that is fixed to a movable side of a door, etc., and is provided on a rotation operation mechanism 2 that is supported on a shaft in the housing 1, and has a fixed hook (not shown).
It is comprised of a movable hook 3 that engages and disengages from the operating mechanism 2, and a combination lock 4 that is connected to and disposed to the operating mechanism 2 and regulates the operation of the operating mechanism 2.

In the operating mechanism 2, an operating shaft 20 that penetrates the housing 1 from the front and back is provided with an operating device 21 at one end, and the base end of the movable hook 3 is fixed to the other end. A locking collar 22 is fixed to the operating shaft 20 inside the housing l, and when the movable hook 3 is in the engagement position and the disengagement position with respect to the fixed hook, the collar 22 has the following functions: A locking recess 23 and an unlocking recess 23a, in which the operating shaft 41 of the combination lock 4 engages, are formed corresponding to the combination lock 4.

The combination lock 4 includes an actuation shaft 41 that is reciprocably disposed in the housing 1 in correspondence with the lock recess 23 and has a plurality of protrusions 42 at equal intervals on the side surface of the shaft, and a collar 22 that connects the actuation shaft 41 with a collar 22.
A spring 43 biased toward the side, and a plurality of dials 45 that are rotatably supported on the operating shaft 41 via bushes 44 and have a portion of their outer periphery protruding from the window hole 11 of the housing 1.
It consists of

A single convex engagement groove 46 is formed in the bushing 44 of each dial 45 along the axial direction, and numbers 47 such as 1, 2.3, etc. are displayed on the outer periphery of the dial 45. The number 47 corresponds to the protrusion engaging groove 46, and the operating shaft 41 is allowed to slide when the protrusion engaging groove 46 of each dial 45 corresponds to the protrusion 42 on the shaft.

The combination lock 4 is provided with a mechanism for freely setting unlocking numbers for each dial 45.

This mechanism has protrusions 48 and concave grooves 49 formed in the bearing holes of each dial 45 and bushing 44 in accordance with the number of numbers 47 on the outer circumference of the dial, and adjacent bushings 44 have their end surfaces abutting each other and springs 50 On the other hand, a small hole 12 into which a protruding rod is inserted is formed in the housing 1 corresponding to the actuating shaft 41, and a bush 4 is inserted into the housing 1.
A pressure member 51 is provided to pressurize 4.

5 to 7 show an example in which the operating mechanism 2 is constituted by a cylinder lock.

In this embodiment, an outer cylinder 24 is provided with a recess 23 for engaging and disengaging the operating shaft 41 of the combination lock 4, and an inner cylinder 24 is provided in the outer cylinder 24 and has an operating lever 21 at one end and a movable hook 3 at the other end. A cylinder 25, a side par 26 that appears on the shear line between the inner and outer cylinders, and a plurality of disc tumblers 2 that are arranged in the inner cylinder 25 and operate to unlock the side pars 26 by inserting a key.
Consisting of 7. In this embodiment, after locking, the unlock number 4
7, or when the movable hook 3 is accidentally locked, the side par 26 between the inner and outer cylinders 24 and 25 is released by a suitable key (not shown), and the inner cylinder 25 is rotated, so that the movable hook 3 is released. The lock works. Of course, this cylinder lock may also be a bottle cylinder lock in which a plurality of pins are arranged between the inner and outer cylinders.

In the example of the cylinder lock, a see-through window 13 is provided on the back surface of the housing 1 corresponding to each dial bushing 44, and the bushing 44 has a protrusion 42 on the operating shaft 41 and a protrusion engagement groove 46. When a response occurs, a display 52 such as a colored mark is placed in a position close to the transparent window 13.

Therefore, when the lock is unlocked by key operation, the dial 4
You can see the unlock number 47 for 5.

In this embodiment, a mechanism is provided between the outer cylinder 24 of the operating mechanism 2 and the dial bushing 44 closest to the outer cylinder 24, so that the space between the dial 45 and the bushing 44 becomes free when the lock is released.

In this mechanism, in the bearing portion of each dial 45 and bushing 44, protrusions 48 and grooves 49 corresponding to the number of numbers 47 on the outer periphery of the dial 45 are formed, as in the previous example, and each bushing 44 is The end surfaces are brought into contact with each other and are biased in the same direction as the operating shaft 41 by a spring 50. A slide bushing 53 is inserted into the tip of the operating shaft 41, and one end is used as the end surface of the bushing 44, and the other end is operated. It is linked to the outer cylinder 24 of the mechanism 2.

The slide bush 53 has an actuating piece 54 protruding from the end on the outer cylinder side, and the slide bush 53 has an actuating piece 54 protruding from the outer cylinder 24 when the fixed hook and the movable hook 3 are in an engaged state. An actuating cam 55 is formed and configured to push and move the spring 50 in the direction of compressing it, and move it in the opposite direction when the spring 50 is in the disengaged state. Therefore, in the unlocked state, as shown in FIG.
Convex engagement! It is engaged with I46. On the other hand, the operating piece 54 of the slide bush 53 is located at the lower portion 56a of the cam 55 and moves toward the outer cylinder 24 together with each bush 44.

As a result, the dial 45 disengages the protrusions 48 and grooves 49 from the bushing 44 and rotates freely, allowing the so-called unlocking number 47 to be freely set.

11 to 13 show other examples of the movable hook 3.

The movable hook 3 of this embodiment is supported by the housing 1 so as to be retractable, and the hook 3 has a long hole 3 for interlocking at an appropriate position.
1. The operating shaft 20 of the operating mechanism 2 is provided with an operating pin 28 that engages with the elongated hole 31, and when the operating shaft 20 rotates forward and backward, the hook 3 moves back and forth through the pin 28 and the elongated hole 31. move.

FIG. 13 shows a mechanism for locking dial 45 in place. This mechanism is applied to each of the embodiments described above, and a recess 57 is formed in the dial 45 between the numbers on the outer periphery, and a spring attachment part 14 is provided in the housing I, and a spring attachment part 14 is provided in the housing I. A temporary spring 58 is attached to each dial 45, and a tip end 59 of the temporary spring is elastically engaged with a recess 57 of the corresponding dial.

The embodiment shown in FIG. 14 employs a mechanism in which the dial 45 and the bush 44 become free when the lock is released, with respect to the operating mechanism 2 similar to that shown in FIGS. 1 to 4. Similar to the embodiment shown in FIGS. 5 to 7, this mechanism has a slide bush 53 interposed between the collar 22 and the bush 44 in the operating mechanism 2. Therefore, in the locked state, the operating shaft 41 is 22, and the protrusion 42 on the shaft is disengaged from the protrusion engaging groove 46 of each bushing 44. On the other hand, the slide bush 53 has an operating piece 54.
is located on the upper part 56b of the cam 55 to engage each bushing 44 into the dial 45, and as the dial 45 rotates,
The protrusion engaging groove 46 is displaced, and the opened/opened state is maintained.

In this embodiment, in the unlocked state, the operating shaft 4
1 is pushed out from the lock recess 23 of the collar 22 and engages the protrusion 42 on the shaft with the protrusion engagement groove 46 of each bush 44 (not shown), while the slide bush 53 is located at the lower part 56a of the cam 55, and each bushing 4
4 to the collar 22 side, so that the dial 45 has a convex line 48 and a concave groove 49 between it and the bushing 44.
is disengaged and rotates freely, allowing the so-called unlocking number 47 to be set freely.

However, in the embodiments shown in FIGS. 1 to 4, when the movable hook 3 is in the unlocked position with respect to the fixed hook, the operating shaft 4
1 engages with the unlocking recess 23a of the collar, and each protrusion 42 is disengaged from the protrusion engaging groove 46 of the dial 45 (Fig. 2), and at this time, the dial stop line 15 of the housing l
Arrange the unlocking number 47 on top. Next, by rotating the operating mechanism 2 by a photographing operation, the movable hook 3 engages with the fixed hook and is locked.

At this time, the actuating shaft 41 escapes from the unlocking recess 23a of the collar 22 and engages with the lock recess 23.
Each protrusion 42 on the shaft corresponds to a protrusion engagement groove 46 (FIG. 4). By rotating each dial 45 in this state, the protrusion engagement groove 46 is displaced from the protrusion 42, thereby preventing the actuating shaft 41 from retreating.

Therefore, the operating shaft 21 of the operating mechanism 2 engages with the locking recess 23 of the collar 22 and does not rotate, and the locked state is maintained.

When unlocking, first position the unlocking number 47 of each dial 45 on the dial stop line 15 of the housing 1, and then rotate the operating device 21 in the reverse direction so that the lock recess 23 of the collar aligns with the operating axis. 41 is moved backward against the force of the spring 43, and the engagement between both hooks is released. When changing the unlocking number 47, when inserting a protruding rod into the small hole 12 of the housing 1 and pressurizing the pressure member 51, the bushes 44 of each dial 45 compress the springs 50 and slide. 44-
The protrusions 48 and grooves 49 between the dials 45 are disengaged.

At this time, each dial 45 is turned to position a new number 47 on the dial stop line 15 of the housing 1, and then the pressure of the pressing member 51 is released. As a result, each bushing 44 is held within the dial 45 again by the force of the spring 50, and the setting of the new unlocking number 47 is completed.

In the embodiment shown in FIGS. 5 to 7, when the fixed hook and movable hook 3 are removed, the outer cylinder 24 and cam 55 of the operating mechanism 2 move the operating shaft 41 toward the dial 45 side, and each bush 44 Sliding in the opposite direction to the operating shaft 41, the dial 45-bush 44 has a convex line 48 and a concave a49.
is released, the protrusion 42 on the operating shaft is engaged with the protrusion engagement groove 46 of the bushing 44 (FIG. 5), and the dial 45 is in a state of free rotation. At this time, the unlocking numbers 47 are aligned and set on the line 15 of the housing 1.

When locking, as in the previous example, by rotating the operating device 21, the fixed hook and the movable hook 3 are engaged, and the recess 23 of the outer cylinder 24 in the operating mechanism 2 corresponds to the operating shaft 41. Meanwhile, the high portion 56b of the cam 55 engages each bushing 44 into the dial 45 in correspondence with the slide bushing 53.
As the operating shaft 41 slides backward, the protrusion 42 on the shaft is disengaged from the protrusion engaging groove 46 of the bushing 44 (FIG. 7).

At this time, turn each dial 45 to
By shifting the position of the protrusion engagement groove 46, the locked state is maintained.

As in the previous example, by lining up the unlocking numbers 47 on the dial 45, the operating device 21 can be rotated in the opposite direction, and the lock can be released.

If you forget the unlocking number 47 in the lock of this embodiment, or if you accidentally lock the lock without looking at the number, you must use the appropriate key (not shown) on the operating device to unlock it. When the disk tumbler 27 is inserted into the inner cylinder 25 through the play hole provided in the hole 21, the side par 26 is released by the disk tumbler 27.

Next, by rotating the key in the same direction as the operating device 21, the inner tube 25, leaving the outer tube 24, pivots, and the movable hook 3 is pivoted to this inner tube 25. Therefore, the lock can be released. After that, open the door, and while turning the dial 45, open the bushing 44 through the see-through window 13 on the back side of the housing 1.
The user sees through the colored display 52, confirms the unlocking number 47, and takes care of cases such as forgetting the number.

In the embodiments shown in FIGS. 11 to 13, the movable hook 3 is of a sliding type and is retracted from the housing 1 by the pin 28 of the operating shaft 20, and the connection with the combination lock 4 is the same as in the previous embodiments. Therefore, its explanation will be omitted.

<Effects of the Invention> As described above, in this invention, a movable hook that engages and disengages from a fixed hook is provided on the rotary operating mechanism supported on the housing, and a combination lock is connected to the operating mechanism. By locking the combination lock after engaging the hook, complete locking is maintained, which solves the various problems of the prior art, making it suitable for rental lockers and the like, and exhibiting its effects.

[Brief explanation of the drawing]

FIG. 1 is a front view of a combination lock according to an embodiment of the present invention, FIG. 2 is a sectional view taken along the line A-A in FIG. 1, FIG. 3 is a sectional view taken along the line B-B in FIG. 4, and FIG. 5 is a sectional view showing another embodiment, FIG. 6 is a sectional view showing the operating state of FIG. 5, and FIG. 7 is a sectional view taken along line C-C in FIG. 6. , Figure 8 is a perspective view of the outer cylinder, Figure 9 is a front view of the slide bushing,
Fig. 10 is a side view of Fig. 9, Fig. 11 is a front view showing another embodiment, Fig. 12 is a sectional view taken along line D-D in Fig. 11, and Fig. 13 is a cross-sectional view taken along line E-E in Fig. 11. FIG. 14 is a sectional view showing another embodiment.

Claims (5)

[Claims] (1) A combination lock consisting of a movable hook that is provided on a rotary operating mechanism supported on a housing and that engages and disengages from a fixed hook, and a combination lock that is connected to the operating mechanism and regulates the operation of the operating mechanism. (2) Claim 1, wherein the movable hook is configured to engage and disengage by rotating or reciprocating with respect to the fixed hook.
Combination tablets listed in section. (3) A combination lock includes an engagement recess formed in the rotating member of the operating mechanism, an actuation shaft that is reciprocally movable in the housing and that engages and disengages from the recess, and a shaft that is fixed to the actuation shaft. 2. The combination lock according to claim 1, further comprising a dial for regulating the reciprocating movement of the operating shaft. (4) The combination lock according to claim 1, wherein the operating mechanism is configured by providing a lock at the end of the rotating operating shaft. (5) The operating mechanism is comprised of an outer cylinder that engages and disengages from the combination lock, an inner cylinder disposed inside the outer cylinder, a side bar that appears on the shear line between the inner and outer cylinders, and an operation mechanism disposed inside the inner cylinder. 2. The combination lock according to claim 1, which is a cylinder lock equipped with a disc tumbler that operates to unlock the side bar.