JPH0660544B2 - Code lock device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a code lock device that does not require a key for locking and unlocking, and more particularly to a code lock device that can set an unlock number arbitrarily.

[Prior Art] In recent years, code locks that can be locked and unlocked without using a key have been used in lockers and safes of sports facilities and the like.

As conventional mechanical code locks, there are those that have a unique unlocking number and cannot be changed, and those that can change the unlocking number by operating the mechanism. In addition, electric code locks have also been used in recent years.

[Problems to be Solved by the Invention] However, there is a problem in that a code lock whose unlocking number cannot be changed can be unlocked illegally by a third party who stores the unlocking number. Also, in the case of a code lock that can change the unlocking number, in order to change the unlocking number, it is necessary to insert a predetermined pin or lever into the lock body and operate the internal mechanism.
There is a problem that it is difficult for a non-expert user to change the unlocking number by himself / herself each time of use.

Further, the electric code lock can be set to an arbitrary unlocking number by operating the numeric keypad and storing the unlocking number in an electronic circuit, but it requires a power source and cannot be operated due to a power failure. There is a problem that the memory of the electronic circuit disappears and the unlocking becomes impossible.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems and to provide a mechanical code locking device which can easily set an arbitrary unlocking number at the time of use. It is another object of the present invention to provide a code lock device that can easily and accurately set a locking / unlocking number. The object of the present invention is to provide a code lock device that can firmly prevent forced unlocking due to external force during locking.

[Means for Solving the Problems] A code lock device of the present invention is a lock pin having a plurality of protrusions formed at predetermined intervals in an axial direction, and a predetermined shape on a side surface of the lock pin that abuts one end of the lock pin. A slide bar that opens and closes the door by its operation, whose operation is regulated by the engagement of the lock pin and the above-mentioned uneven portion, and the door is opened and closed by the operation. Then, the protrusion of the lock pin having an inner peripheral gear that engages and disengages with the outer peripheral gear of the dial lock gear described below in order to set a predetermined number so that the code lock can be locked or unlocked. And a number of dials corresponding to the dial, a zero return gear that engages with the dial and returns the dial to zero, and a locking means that locks the slide bar in the unlocked position so that the door cannot be locked. When the slide bar is in the unlocked position by interlocking with the dial through the zero return gear and the dial is all zero, the locking means is engaged with the slide bar to lock the slide bar. Interlocking lever for disengaging the slide bar and the lock-inhibiting means to enable the locking operation of the slide bar when at least one of the dials is set to a value other than zero. An arm that drives the zero-return gear so as to return the dial to zero at the time of locking and unlocking in conjunction with the locking and unlocking operations, the gate that engages and disengages with the protrusion of the lock pin on the inner circumference, and the above on the outer circumference. It has an outer peripheral gear that engages and disengages with the dial inner peripheral gear, and has the following engagement and disengagement relation between the gate and the protrusion of the lock pin and the outer peripheral gear and the dial inner peripheral gear. The dial lock gear that sets the unlocking number of the dial and regulates the axial movement of the lock pin by a.) When the lock is unlocked, the protrusion fits inside the gate, and the outer gear and the dial The peripheral gear does not engage, and (b) when locked, the outer peripheral gear and the inner peripheral gear of the dial engage with each other, the positions of the gate and the protrusion are displaced, and the protrusion does not fit into the gate. .

Further, in order to prevent unauthorized use by a third party, there is provided a slide bar locking means for fixing the slide bar in the unlocked position and a slide bar releasing means for releasing the slide bar from the slide bar locking means, thereby preventing unauthorized use. Means can be provided.

In addition to the above configuration, if you forget the unlocking number or lock without remembering the unlocking number, you can open the door and the slide bar is in the locked position to search for the unlocking number. When the unlocking means that can open the lock part of the door with the position of the gate of the dial lock gear and the protrusion of the lock pin match, each dial lock gear
It is possible to provide unlocking number search means having a search pin that can be operated only from the inside of the door and that fits into the small hole formed in the predetermined position of (5).

Further, the code lock device of the present invention has a lock pin having a plurality of protrusions formed at predetermined intervals in the axial direction, and an uneven surface of a predetermined shape on a side surface that abuts one end of the lock pin, The operation is restricted by the engagement of the lock pin and the concave and convex portion, the slide bar that is linked with the lock portion to lock the door, and opens and closes the door by the operation, and is arranged coaxially with the rotation axis of the lock pin. The lock gear is provided in a number corresponding to the protrusions of the lock pin, has a gate that engages and disengages with the protrusion of the lock pin on the inner periphery, and has gear teeth on the outer periphery, and gear teeth on the outer periphery of the lock gear. An inner peripheral gear tooth that engages and disengages with the inner peripheral portion, and has another portion, for example, an intermediate gear having outer peripheral gear teeth, and a gear tooth that engages with an outer peripheral gear tooth of the intermediate gear,
A dial with a code on the outer circumference, a zero return gear that is fixed to the dial and returns the dial to zero, and when the dial is all zero, fits the zero return gear and locks the slide bar. , When at least one of the dials is set to a value other than zero, an interlocking lever that locks the slide bar by not engaging with the zero return gear, and an operation of the interlocking lever provided on the slide bar. A return cam that controls the operation of the slide bar, an arm that drives the zero return gear so as to return the dial to zero when locking and unlocking, and an outer periphery of the intermediate gear. And a manual operation plate having gear teeth that engage with the gear teeth of.

Further, in addition to the above configuration, a rack plate interlocking with the locking and unlocking operation of the slide bar in the lock portion, and a locked state and an unlocked state due to the operation of the rack plate, and a part of the rack plate is locked at the time of locking. It is also possible to provide a lock plate having a fitting projection.

[Operation] When an arbitrary number (hereinafter referred to as an unlocking number) is set by dial operation in the unlocked state (unlocked state),
The slide bar is in a lockable state. When the slide bar operates and is locked, the arm is driven by the slide bar and the dial returns to zero by the operation of the zero return gear. At this time, the lock pin engages with the recess of the slide bar, and the protrusion of the lock pin and the gate of the dial lock gear are displaced so that the protrusion and the side part of the dial lock gear come into contact with each other to prevent the lock pin from operating. Therefore, the slide bar cannot operate and the locked state is maintained.

On the other hand, when the dial is operated and the unlocking number is set in the locked state, the protrusion of the lock pin and the position of the gate of the dial lock gear match, and the lock pin can move in the axial direction. It is in a state where it can be operated and unlocked. Then, when the unlocking operation is performed, the slide bar operates to unlock, the arm is driven by the slide bar, the zero return gear operates, and the dial returns to zero. At this time, the engagement between the dial and the dial lock gear is released, and the unlocked state before use is set, so that an arbitrary unlocked number can be set again and locked.

[Embodiment] Embodiment 1 A first embodiment of the present invention will be described below with reference to the drawings.

1 and 2 are a front view and a side view showing the inside of the code lock device in an unlocked state. As shown in the case (1)
The code lock housed inside is a slide bar (10) that regulates the opening and closing of a lock part (not shown) provided on the object to be opened and closed, such as a locker door, and a holding plate (4) at both ends to prevent rotation. The lock pin (2) that is held and regulates the movement of the slide bar (10), is locked and unlocked by a plurality of dials (3) and the dial (3) that are locked by the lock pin (2) and set an unlocking number. It is equipped with a dial lock gear (5). Furthermore, a plurality of zero return gears (6) for engaging the gear (3a) provided on the dial (3) to return the dial (3) to zero, and provided on the side surface of the zero return gear (6). It has an arm (7) which engages the heart-shaped cam (6a) and operates the zero return gear (6). The zero return gear (6) above is a dial
It has a notch (6b) on its side surface that engages with the interlocking lever (9) when (3) is zero. The interlocking lever (9) is supported by the shaft (9a) and is in contact with the lock-inhibiting means (8) for restricting the movement of the slide bar (10). A first bush (11) and a second bush (12) are provided at both ends of the lock pin (2), and further the lock pin (1) and the second bush (12) are provided according to the operation of the slide bar (10).
First spring (13) that pushes (2) to the left (arrow B direction)
Also, a second spring (14) for pressing the dial lock gear (5) to the left (the direction of arrow B) is provided. Also 1a
The figure shows the appearance of this embodiment, the case (1) is provided with a number window (1a) for displaying dial numbers,
An operation unit (1b) for operating the slide bar (10) from the outside of the door is provided.

Next, the operation of the first embodiment will be described.

<Operation from unlocked state to locked state> When the code lock is in the unlocked state as shown in FIGS. 1 and 2, the dials (3) are all reset to zero as described later. , The interlocking levers (9) corresponding to the dial (3) are fitted with the notches (6b) of the zero return gear (6), so that the lock-inhibiting means (8) is pushed by the spring (15) and floats. Then, it abuts against the L-shaped projection (10a) of the slide bar (10) to prevent the slide bar (10) from moving downward (in the direction of arrow A).

On the other hand, FIG. 3 showing an enlarged view around the lock pin (2) and
As shown in FIGS. 4 to 7 showing enlarged views of the slide bar (10), in the unlocked state, the lock pin (2) is pushed by the convex portion (10b) of the slide bar (10) to the right. It is moving in the direction of arrow C. On the other hand, the dial lock gear (5) is pressed in the direction of arrow B by the second bush (12) urged by the second spring (14) and moved to the left.
Therefore, the protrusion (2a) of the lock pin (2) is formed inside the dial lock gear (5) shown in FIG.
The lock pin (2) is engaged with the dial lock gear (5). However, since the dial lock gear (5) is pressed in the left direction (direction of arrow B) by the second spring (14),
The outer peripheral gear (5b) of the dial lock gear (5) does not engage with the inner peripheral gear (3b) of the dial (3), and the dial (3) can be arbitrarily rotated. Therefore, the unlocking number can be set in this state.

On the other hand, if you rotate at least one of the dials (3) and set it to a number other than zero (set the unlocking number),
The gear (3a) of (3) causes the zero return gear (6) to rotate, and the interlocking lever (9) will not fit into the notch (6b), and the interlocking lever (9)
The lock means (8) is pressed by the L of the slide bar (10).
It does not come into contact with the projection (10a) (Fig. 9). as a result,
It is possible to pull down the slide bar (10) (direction of arrow A). That is, it is possible to lock only after setting the unlocking number. When the slide bar (10) is pulled down,
Since the end of the L-shaped protrusion (10a) pushes down the pin (7a) of the arm (7) as shown in FIG. 10, the arm (7) rotates about the shaft (7b) as a rotating shaft, The cam (6a) is pressed, the zero return gear (6) is operated, and the dial (3) is returned to zero.

By the way, when the slide bar (10) is pulled down as described above, the lock pin (2) is fitted in the recess (10c) of the slide bar (10) as shown in FIG. Direction). On the other hand, both legs (11b) of the first bush (11) whose plan view and front view are shown in FIGS. 3a and 3b.
Is pushed by the inclined surface (10g) of the slide bar (10) and the flat surface portions (10d) on both sides of the concave portion (10c) to move the dial lock gear (5) to the right (the direction of arrow C). Note that FIGS. 3a and 3b
(11c) in the figure is a hole into which the lock pin (2) is inserted. As a result, the outer gear (5b) of the dial lock gear (5) is dialed.
It engages with the inner peripheral gear (3b) of (3), while the protrusion (2a) of the lock pin (2) is the gate (5a) of the dial lock gear (5).
The lock pin (2) is disengaged from the dial lock gear (5).

If the dial (3) returns to zero in this condition, the dial (3)
The dial lock gear (5) rotates together with (3), and the gate (5
A) and the protrusion (2a) of the lock pin (2) are misaligned, and the protrusion (2a) of the lock pin collides with the dial lock gear (5), so to the right of the lock pin (2) (direction of arrow C). Operation is blocked. When the lock pin (2) cannot move to the right, the lock pin (2) hits the slope (10e) of the slide bar (10) even if the slide bar (10) is pushed upward (in the direction of arrow D). , The slide bar (10) cannot be pushed up. In this way, the code lock is locked.

<Operation from Locked State to Unlocked State> Next, the operation of the first embodiment from the locked state to the unlocked state will be described. Dial returning to zero when locked
When the unlocking number is set by operating (3), the misaligned gates (5a) of the dial lock gear (5) and the protrusions (2a) of the lock pin (2) will be aligned in the circumferential direction. . When the slide bar (10) is pushed up in this state, the lock pin (2) is pushed by the slope (10e) and the plane (10b) of the slide bar (10) and moves to the right (the direction of arrow C). . As a result, the slide bar (10) can be pushed upward (direction of arrow D) (Fig. 3). When the slide bar (10) is pushed up, the notch (10f) in the slide bar (10) causes the arm (7) to move.
The pin (7) is engaged with the arm (7) to rotate the arm (7) in the direction of arrow E as shown in FIG. At this time, the arm (7) engages with the heart-shaped cam (6a) of the zero return gear (6) to operate the zero return gear (6) and return the dial (3) to zero.

On the other hand, the first bush (11) does not contact the slide bar (10) but moves to the left (direction of arrow B) to the position where the stepped part (11a) contacts the fixed plate (4). On the other hand, the dial lock gear (5) is pushed by the second bush (12) urged by the spring (14) to move leftward (arrow B direction),
As a result, the engagement between the dial (3) and the dial lock gear (5) is released (Fig. 3).

As described above, in the first embodiment of the present invention, the locking operation of the slide bar (10) becomes possible only after the unlocking number is set, and when the slide bar (10) performs the locking operation, the code lock is always Since it is locked, there is no risk of erroneous locking operation. Also, since the dial (3) returns to zero when locking and unlocking, operate the dial (3) in order to prevent third parties from knowing the unlocking number after locking and unlocking. There is no need to change that number to a number other than the unlocking number. Although the dial (3) is configured to return to zero when unlocked in the above embodiment, it may be configured to have another number.

Further, a dummy hole can be provided on the surface of the dial lock gear (5) that comes into contact with the protrusion (2a) of the lock pin (2) at the time of locking to effectively prevent unauthorized unlocking by a third party.

Embodiment 2 FIGS. 13 and 14 show a second embodiment of the present invention. In the second embodiment, in order to prevent a third person from improperly locking the code lock, the slide bar locking means (21) for fixing the slide bar to the unlocked position and the slide bar ( 1
It is provided with an improper use preventing means having a slide bar opening means (24) for releasing the engagement between 0) and the slide bar locking means (21). Before the card-shaped slide bar releasing means (24) is inserted as shown in FIG.
The engaging hole (22) of (21) engages with the recessed portion (23) of the slide bar and blocks downward movement of the slide bar (10) (direction of arrow A). When the slide bar releasing means (24) is inserted from the insertion opening (25), the slide bar locking means (21) is pushed by the slide bar releasing means (24) and moves to the left in the figure to move the slide bar ( The engagement with 10) is released, and the slide bar (10) can move downward as shown in FIG. as a result,
Only a legitimate user who has the slide bar opening means (24) can lock the code lock, and it is possible to prevent the unauthorized use by a third party. Since the slide bar opening means (24) is inserted from the inside of the door and is located inside the door during locking, there is no fear that a third party may use this unjustly.

Further, by writing the user's name, number or mark on the slide bar opening means (24) and providing a window through which the user can see through the door, it is possible for the user to easily recognize the locker etc. used by the user. .

Embodiment 3 Further, FIGS. 15, 16 and 17 show an unlocking means for opening a door when a user forgets an unlocking number and a locker after opening the door using the unlocking means. The 3rd Example provided with the unlocking number search means which searches the set unlocking number is shown. As shown in FIG. 15, the unlocking means is a cylinder lock (20
2) is used, and the slide bar (10) is connected to the rod (32) having the rack (31) by the connecting member (32a).
When the slide bar (10) moves downward (direction of arrow A), the rod (32) moves downward and the rack (31) moves to the cylinder lock (20
2) Engage with the gear (34) of the outer cylinder (33) to move the outer cylinder (33) to the arrow F
Rotate in the direction. Along with this, the inner cylinder (35) of the cylinder lock (202) also rotates in the direction of the arrow F, and the projection (36) formed on the disk (36a) provided on the inner cylinder (35) causes the lock bolt (37).
The lock bolt (37) is engaged with the recessed portion (38) and is pushed into a lock portion (not shown) for closing the door. When the door is closed in this way, the keyhole of the cylinder lock (202)
When a key (not shown) is inserted into (39) and the key is rotated in the direction of arrow G, the outer cylinder (33) does not rotate, only the inner cylinder (35) rotates in the direction of arrow G, and the protrusion (36) ) Is the recess of the lock bolt (37)
Engage with (38) and pull out lock bolt (37) from the lock. As a result, the door is opened with the slide bar (10) in the locked position (Fig. 15). Although the cylinder lock (202) is used as the unlocking means in the third embodiment, the invention is not limited to this, and any mechanism capable of opening the door with the slide bar (10) fixed in the locking position can be used. Good.

Further, FIG. 17 shows unlocking number searching means. As shown in the figure, a search pin (41) facing each dial lock gear (5) is provided on the back surface of the case (1). Each dial lock gear (5) has a small hole (42) formed in it.
2) is the dial lock gear when engaged with the search pin (41)
The gate (5a) of (5) and the protrusion (2a) of the lock pin (2) are aligned with each other so that the lock pin can be operated. Press the search pin (41) above and press the corresponding dial (3)
When is rotated, the search pin (41) engages with the small hole (42) and stops when the small hole (42) comes to the opposite position. At this time, the unlocking number is located in the number window (1a) (Fig. 1a), and the unlocking number can be searched in this way. As a result, the unlocking number can be set and the slide bar (10) fixed at the locking position can be freely operated, and the code locking device can be used for normal use.

Fourth Embodiment A fourth embodiment of the present invention will be described with reference to the drawings. 18th
FIG. 19 and FIG. 19 are a front view and a side view showing the inside of the code lock device in the unlocked state.

In the above-mentioned first embodiment, a manual operation plate for setting a number
Although (101) was provided on the side surface of the dial (3), in this embodiment, as shown in FIG. 18 and FIG. 19, the manual operation plate (101) for number setting is different from the dial (3). Dial (3) via a separate intermediate gear (104)
The operation is performed. Also, the above-mentioned first
In this embodiment, the shape of the slide bar (10) is changed, and the mechanism for moving the arm (7) according to the movement of the slide bar (10) is changed.
A mechanism is provided to prevent the operation of (0) during locking and unlocking.

In the above-mentioned first embodiment, the lock pin (2) and the dial lock gear, which are arranged inside the dial (3), are arranged.
(5), first bush (11), second bush (12), first
This is a mechanism for engaging and disengaging the dial (103) and the lock pin (2) by axial movement of the lock pin (2) such as the spring (13) and the second spring (14). On the other hand, in the fourth embodiment, these lock pin engagement / disengagement mechanisms are arranged inside the intermediate gear (104). In the above-described first embodiment, the slide bar (1
The convex portion (10b) and the concave portion (10c) for moving the (0) in the axial direction were provided at the position where one end of the slide bar (10) abuts. In contrast, in the fourth embodiment, The protrusion (110b) and the recess (110c) for moving the slide bar (110) in the axial direction are provided at positions where the lock pin (2) abuts on the slide bar (110). Further, the slide bar (110) has a hole (110) for moving the pin (107a) of the arm (107).
g) and a hole (110h) for moving the finger B (109a) of the interlocking lever (109). Slide bar (1
Return cams (102a, 102b) are provided inside the hole (110h) of the position (10) at positions facing each other, and control the moving direction of the finger B (109a) of the interlocking lever (109). Further, the slide bar (110) has a connecting member (20
0) is attached and transmits the operation of the operation part of the lock part to the slide bar (110). Gear teeth (103a) engaging with the intermediate gear (104) and a zero return gear (106) are coaxially fixed to one side surface of the dial (103). Also, the heart-shaped cam (106a) is on the other side of the dial (103).
It is fixed to the position where it abuts (107).

The operation of the fourth embodiment of the setting unit of the code lock device having the above configuration will be described below.

<Operation from unlocked state to locked state> As described in the first embodiment, when the code lock is in the unlocked state, the plurality of dials (103) have all returned to zero, and the dial Multiple interlocking levers corresponding to (103)
(109) is pressed and fitted into the notch (106b) of the zero return gear (106) by pressing means (for example, a spring). Therefore, the finger B (10) provided on the interlocking lever (109) is
9a) is at a position where it abuts on the stepped portion (110i) of the slide bar (110), and prevents the slide bar (110) from moving downward (direction of arrow A).

Next, the operation of the lock pin (2) arranged inside the intermediate gear (104) will be described. The lock pin (2) arranged inside the dial (3) in the first embodiment described above is
In the fourth embodiment, it is arranged inside the intermediate gear (104). The unlocked state in the vicinity of the lock pin (2) is shown in FIG. 20, and the locked state is shown in FIG. Figure 21 shows. The lock gear (105) is shown in FIG.

As described in the first embodiment, in the unlocked state, the lock pin (2) is pushed by the convex portion (110b) of the slide bar (110) and moves to the right (the direction of arrow C). There is. On the other hand, the lock gear (105) is pressed by the second bush (12) and moved to the left (the direction of arrow B). Therefore, the protrusion (2a) formed on the lock pin (2) is fitted into the gate (105a) formed inside the lock gear (105), thereby the lock pin (2) and the lock gear (105). Engage. However, since the lock gear (105) is pressed by the second spring (14), the lock gear (105) is formed on the outer peripheral gear teeth (105b) formed on the outer side of the lock gear (105) and on the inner side of the intermediate gear (104). The formed inner peripheral gear teeth (104a) do not engage. Therefore, the intermediate gear (104) and the lock pin (2) do not engage with each other. Intermediate gear (10
The outer peripheral gear teeth (104b) formed on the outer side of (4) are always engaged with the gear teeth (103a) of the dial (103) and the manual operation plate (101), respectively. The dial (103) can be arbitrarily rotated by (101). Therefore, the unlocking number can be set in this state. Further, a movable hook (109c) attached to the interlocking lever (109) is attached to the gear tooth (103a) of the dial (103) engaged with the outer peripheral gear tooth (104b) of the intermediate gear (104). It is pressed and abutted by a spring. Therefore, the dial (103) can be accurately stopped at the position of each predetermined number when setting the number.

Next, rotate at least one of the manual operation plates (101) provided in the same number corresponding to the plurality of dials (103) and set it to a number other than zero (set the unlocking number), and then rotate it. The zero return gear (106) fixed to the side surface of the dial (103) rotates, and the interlocking lever (109) moves the zero return gear (10).
It will not fit with the notch (106b) in 6). This causes the interlocking lever (109) to move in the direction of lifting the zero return gear (106).
It rotates around (109b), and the finger B (109a) of the interlocking lever (109) comes to a position where it does not engage with the stepped portion (110i) of the slide bar (110). As a result, it is possible to pull down the slide bar (110) (in the direction of arrow A). That is, it is possible to lock only after setting the unlocking number. When the slide bar (110) is pulled down, the finger B (109a) of the interlocking lever (109) moves the edge of the hole (110h) while expanding one return cam (102a), and then the other return cam (110h). Move along 102b). Therefore, the interlocking lever
(109) is the direction that lifts more than the zero return gear (106) (No.
19) Move to the left). As a result, the interlocking lever (10
9) operates in the direction of lifting the zero return gear (106) for substantially two steps. When the finger B (109a) moves along the return cam (102b) in the second stage, the movable hook (109c) attached to the interlocking lever (109).
Does not come into contact with the gear teeth (103a) provided on the dial (103). As a result, the dial (103) can be rotated freely.

On the other hand, when the slide bar (110) is pulled down (direction of arrow A), the pin (107a) of the arm (107) moves to the slide bar (110).
It moves along the edge of the hole (110g) provided in. At this time, a rotational force is always applied to the arm (107) counterclockwise in FIG. 19 about the shaft (107b). For this reason,
When the slide bar (110) is pulled down, the pin (107a) of the arm (107) moves along the hole edge (110k, 110, 110m) of the hole (110g) in this order. By moving this pin (107a),
The arm (107) is rotated around the axis (107b). pin
When (107a) moves along the hole edge (110k), the arm (10a)
7) gradually moves away from the heart-shaped cam (106a). When the pin (107a) moves along the hole edge (110m), the arm (107) contacts the heart-shaped cam (106a) and presses the heart-shaped cam (106a). As a result, the arm (107) abuts the recess of the heart-shaped cam (106a), and the heart-shaped cam (106a)
Stops rotating. The contact of the arm (107) with the recess of the heart-shaped cam (106a) returns the dial (103) to zero.

When the dial (103) returns to zero, the interlocking lever (109)
Is engaged with the notch (106b) of the zero return gear (106), and the finger B (109a) of the interlocking lever (109) is the slide bar (110).
This is the position to engage with the stepped portion (110j). Therefore, the movement of the slide bar (110) in the upward direction (the direction of arrow D) is blocked.

By the way, when the slide bar (110) is pulled down as described above, the lock pin (2) arranged inside the intermediate gear (104) is recessed in the slide bar (110) as shown in FIG. Insert into (110c) and move to the left in the figure (direction of arrow B). Further, similar to the first embodiment described above, the first bush
By being pushed by (11), the lock gear (105) moves to the right (the direction of arrow C). As a result, the lock gear (10
The outer gear teeth (105b) of 5) are the inner gear teeth (10b) of the intermediate gear (104).
4a) but on the other hand the protrusion (2a) of the lock pin (2)
Is released from the gate (105a) of the lock gear (105), and the engagement between the lock pin (2) and the lock gear (105) is released.

When the dial (103) returns to zero in this state, the lock gear (105) rotates together with the intermediate gear (104), and the gate (105
a) and the protrusion (2a) of the lock pin (2) are displaced in the circumferential direction,
Since these protrusions (2a) collide with the lock gear (105), the lock pin (2) is prevented from moving in the right direction (direction of arrow C). As a result, as in the case of the first embodiment, when the slide bar (110) is to be pulled upward (in the direction of arrow D in FIG. 19), the lock pin (2) is provided on the slide bar (110). The slide bar (110) cannot be pulled upward because it hits the slope. In this way, the code lock is locked.

<Operation from Locked State to Unlocked State> Next, the operation from the locked state to the unlocked state in the fourth embodiment will be described. When the dial (103), which has returned to zero in the locked state, is turned by the manual operation plate (101) to set the unlocking number, the gate (105
The positions of a) and the protrusions (2a) of the lock pin (2) match in the circumferential direction. Also, by setting an unlocking number other than zero,
At least one of the zero return gears (106) coaxially fixed to the side surface of each dial (103) will rotate, and the interlocking lever (109) will have a notch (106b) in the zero return gear (106). Will not fit. This allows the interlocking lever (9)
Is lifted from the zero return gear (106), and the finger B (109a) of the interlocking lever (109) moves to the slide bar (11).
It is a position that does not engage with the step portion (110j) of 0). When the slide bar (110) is pulled up in this state, the lock pin is attached to the convex portion (110b) of the slide bar (110) as in the case of the first embodiment.
Since one end of (2) comes into contact, the lock pin (2) is moved to the right (the direction of arrow C). As a result, the slide bar (110) can be pulled upward (in the direction of arrow D).

In this way, when the slide bar (110) is pulled up, the finger B (109a) of the interlocking lever (109) moves along the edge of the hole (110h) while expanding one return cam (102b), Then, it moves along the other return cam (102a). Therefore, the interlocking lever (109) is further moved in the lifting direction (left direction in FIG. 19) by the zero return gear (106). In this manner, similar to the operation of the interlocking lever (109) at the time of locking, the movable hook (109) is operated in the direction of lifting up from the zero return gear (106) by substantially two steps.
c) does not come into contact with the gear teeth (103a) provided on the dial (103).

On the other hand, when the slide bar (110) is pulled up (in the direction of arrow D), the pin (107a) of the arm (107) moves to the slide bar (110).
Move along the edge of the hole (110g). The moving direction at this time is the direction opposite to the direction in which the pin (107a) has moved during locking. That is, when the slide bar (110) is pulled up, the pins (107a) sequentially move along the respective hole edges (110m, 110, 110k). As the pin (107a) moves along the hole edge (110k), the arm (107) abuts the heart-shaped cam (106a), causing the heart-shaped cam (106a) to rotate. As a result, the arm (107) comes into contact with the concave portion of the heart-shaped cam (106a), and the rotation of the heart-shaped cam (106a) is stopped. This heart-shaped cam (106
The abutment of the arm (107) in the recess of (a) causes the dial (103) to
Is reset to zero.

When the dial (103) returns to zero, the interlocking lever (109)
Is engaged with the notch (106b) of the zero return gear (106), and the finger B (109a) of the interlocking lever (109) is the slide bar (110).
This is the position to engage with the stepped portion (110i). Therefore, the downward movement of the slide bar (110) (direction of arrow A) is prevented.

Further, when the slide bar (110) is pulled up, as shown in FIG. 20, the convex portion (110b) of the slide bar (110) and one end of the lock pin (2) come into contact with each other, and the intermediate gear (104) The first bush (11) arranged coaxially includes a slide bar (11
It moves to the left (direction of arrow B) until the stepped portion (11a) of the first bush (11) comes into contact with the fixed plate 4 without contacting the convex portion (110b) of 0). Meanwhile, the lock gear (10
5) is the second bush urged by the second spring (14)
It is pressed by (12) and moved to the left (the direction of arrow B).
As a result, the engagement between the inner peripheral gear tooth (104a) of the intermediate gear (104) and the outer peripheral gear tooth (105b) of the lock gear (105) is released.

Thereby, the initial state in the unlocked state is restored.

As described above, the fourth embodiment of the present invention (Figs. 18 and 19)
In the figure, the manual operation plate (101) is configured as a separate body from the dial (103), and an intermediate gear (104) is provided between them, and the main mechanism of the present invention is ) Is provided inside. For this reason, the number of the dial (103) is not hidden by the finger when performing the number setting operation at the time of locking / unlocking, which facilitates the setting. Also,
Since the mechanism such as the lock pin (2) provided inside the dial (103) in the first embodiment is provided inside the intermediate gear in the fourth embodiment, the dial (103) slides. The bar (110) is not pressed to the left and right by the up and down movement, and the code of the dial (103) is always at a predetermined position without shifting to the left or right of the code window. Dial again
Since the movable hook (109c) is pressed against the gear tooth (103a) of (103) by the spring, the code of the dial (103) does not shift to the upper or lower of the code window and is in a predetermined position. come. Further, since the heart-shaped cam (106a) for returning the sign of the dial (103) to zero is fixed to the side surface of the dial (103), it is pressed by the arm (107) to rotate the heart-shaped cam (106a). The operation of 106a) is directly transmitted to the dial (103),
Be sure to return to zero.

In addition, in the fourth embodiment, the setting portion and the lock portion are configured as separate bodies and are connected to each other through the connecting member (200). For this reason, in the door or the like to which the code lock device of the present invention is attached, the setting portion and the lock portion are vertically separated from each other, and the manual operation plate of the setting portion is installed.
The (101) and dial (103) are in positions that are easy to operate.

Embodiment 5 FIGS. 23 and 24 show a fifth embodiment of the present invention.
The fifth embodiment is an embodiment of the lock unit of the code lock device. 23 and 24 are front views showing the inside of the lock portion. In the figure, a rack bar (131) on which a rack (131a) is formed is connected to a slide bar (110) of a setting section via a connecting member. Also, rack bars (131)
An operating portion (1b) that is operated from the outside of the door is attached to the. When operating this operation part (1b) in the direction to pull it down,
The rack bar (131) also moves downward (in the direction of arrow H), and the rack (131a) of the rack bar (131) is the outer cylinder (133) of the cylinder lock (202).
The outer cylinder (133) is rotated in the arrow I direction by engaging with the gear (133a). Along with this, the inner cylinder (135) of the cylinder lock (202) also rotates in the direction of arrow I, and the gear (135a) of the inner cylinder (135) rotates the pinion gear (132) in the direction of arrow J. By rotating the pinion gear (132) in the direction of arrow J, the rack (141a)
The rack plate (141) on which is formed is moved in the direction of arrow K. At this time, the stepped portion of the hole provided in the rack plate (141)
(141b) and the pin C (140a) of the lock plate (140) are engaged, and the lock plate (140) is rotated in the arrow M direction. At this time, the lock plate (140) rotates about the shaft (140c). This allows
The pin C (140a) of the lock plate (140) is a step of the rack plate (141).
It comes off from (141b) and enters in the direction of the recess (141d). As a result, the lock plate (140) projects from the case (201) of the lock portion and is locked. Since the pin C (140a) of the lock plate (140) in this state is fitted into the recess (141d), the lock plate (140) is rotated even if a rotational force is applied to the lock plate (140) from the outside. It is not possible.

Next, when the operating portion (1b) is operated in the pulling up direction (arrow O direction), the rack bar (131), the cylinder lock (202) and the pinion gear (132) pull down the operating portion (1b). Direction (Arrow H
Direction) operates in the opposite direction. As a result, the rack plate (141) moves in the downward direction (arrow L direction), the pin C (140a) of the lock plate (140) moves along the edge of the hole of the rack plate (141), and the pin C (140a)
And the recess (141c) are engaged with each other. This allows the lock plate (140)
Rotates in the direction of arrow N, is housed inside the case (201) of the lock portion, and is in the unlocked state.

The lock plate (140) is constantly pressed by a pressing means (for example, a spring) in a direction to be housed in the case, and prevents the lock plate (140) from protruding outside the case (201) due to vibrations in the unlocked state.

As described above, in the fifth embodiment of the present invention, the pin C (140a) of the lock plate (140) is locked by the rack plate (141) when locked.
Since the lock plate (140) is fitted into the concave portion (141d) of the lock plate (140d), the lock plate (140) is completely locked, and cannot be unlocked even if a force is externally applied to the lock plate (140).

The cylinder lock (202) is an unlocking means that can open the door when the user forgets the unlocking number. The unlocking number searching means described in the third embodiment for searching the unlocking number set by the locker after opening the door by using the cylinder lock (202) instead of using the code dial operation. But,
It is also provided in this fifth embodiment.

Further, by providing the slide bar locking means and the slide bar releasing means described in the second embodiment also in the fifth embodiment, it is possible to prevent the unauthorized use by a third party.

Although the dial (103) is reset to zero at the moment of locking and unlocking in the fourth embodiment, it may be configured to have another code.

EFFECTS OF THE INVENTION Since the code lock device of the present invention can set the unlocking number only by dialing, the unlocking number can be easily set and changed. Also, when the code lock is locked by the locking operation of the slide bar and when the code unlock is set and the code lock is unlocked, the dial is reset to zero so that the unlock code can be remembered by a third party. It will not be unlocked improperly. Further, the unauthorized use prevention means can prevent the unauthorized use by a third party.

Further, in the case where the unlocking means and the unlocking number searching means are provided, even if the user forgets the unlocking number, the locker administrator can open the door by the unlocking means such as the master key. Moreover, since the unlocking number that the person has forgotten can be retrieved, it can be easily returned to the usable state.

Further, by configuring the manual operation plate as a separate body from the dial, the locking / unlocking number can be easily set, and the dial code can always be reliably arranged at a predetermined position. Further, by configuring the setting unit and the lock unit as separate members, the setting unit can be arranged at a position where it is easy to operate.

Further, by fitting a part of the lock plate to a part of the rack plate in the lock part at the time of locking, it is possible to firmly prevent the forced unlocking from the outside.

[Brief description of drawings]

FIG. 1 is a front view showing the inside of a code lock device according to a first embodiment of the present invention, FIG. 1a is a view showing its appearance, and FIG.
FIG. 1 is a side view of the first embodiment of FIG. 1, FIG. 3 is a view showing the vicinity of a lock pin when unlocking the first embodiment, and FIGS. 3a and 3b are respectively the first bush. Shown in plan view and front view, FIGS. 4 and 5 are side views and front view showing slide bars of the first embodiment, respectively, and FIGS. 6 and 7 are VI-VI lines of FIG. 5, respectively. Sectional view and sectional view taken along the line VII-VII, FIG. 8 is a view showing a dial lock gear of the first embodiment, FIGS. 9 and 10 are views for explaining the operation of the first embodiment, and FIG. Is a diagram showing the vicinity of the lock pin when locking the first embodiment, FIG. 12 is a diagram for explaining the operation of the first embodiment,
13 and 14 are diagrams showing a second embodiment, FIG. 15, and FIG.
FIG. 17, FIG. 17 shows a third embodiment, FIGS. 18 and 19 are a front view and a side view showing the inside of the setting portion of the coding device in the unlocked state of the fourth embodiment, and FIG. Is a view showing the vicinity of the lock gear when unlocking the fourth embodiment, FIG. 21 is a view showing the vicinity of the lock gear when locking the fourth embodiment, and FIG. 22 is a lock gear of the fourth embodiment. FIG. 23 is a plan view showing the inside of the lock part of the code lock device in the unlocked state of the fifth embodiment, and FIG. 24 is the lock part of the code lock device in the locked state of the fifth embodiment. It is a top view which shows the inside. In the figure, (2) is a lock pin, (3) is a dial, (3b) is an inner peripheral gear, (5) is a dial lock gear, (5b) is an outer peripheral gear, (6) is a zero return gear, and (7). Is an arm, (8) is a locking means, (9) is an interlocking lever, and (10) is a slide bar.

Claims (7)

[Claims] 1. A lock pin having a plurality of protrusions formed at predetermined intervals in the axial direction, a side surface that abuts one end of the lock pin, and an uneven portion having a predetermined shape. The movement of the door is restricted by the engagement with the lock part, and the slide bar that opens and closes the door by the movement is linked with the lock part that locks the door, and has a number on the outer circumference and locks or unlocks the code lock. In order to set a predetermined number so that the dial can be locked, a dial provided in a number corresponding to the protrusion of the lock pin having an outer peripheral gear of the dial lock gear and an inner peripheral gear for engaging and disengaging, Locking means that locks the slide bar in the unlocked position so that the door cannot be locked, zero return gear that engages with the dial and returns the dial to zero, through the zero return gear When the slide bar is in the unlocked position in cooperation with the dial, when the dials are all zero, the lock-inhibiting means is engaged with the slide bar to prevent the lock operation of the slide bar. When at least one is set to a value other than zero, the interlocking lever that releases the engagement between the slide bar and the lock-inhibiting means and enables the locking operation of the slide bar, and the locking operation and the unlocking operation of the slide bar. The arm that drives the zero return gear so as to return the dial to zero when locking and unlocking, the gate that engages and disengages with the protrusion of the lock pin on the inner circumference, and the gear that engages with the inner gear of the dial on the outer circumference. It has an outer peripheral gear to be disengaged, and the unlocking number of the dial depends on the following engagement / disengagement relationship between the gate and the protrusion of the lock pin, and the outer peripheral gear and the inner peripheral gear of the dial. A dial lock gear that performs setting and regulation of the axial movement of the lock pin, a) When unlocking, the protrusion fits into the gate, and the outer peripheral gear does not engage with the inner peripheral gear of the dial. ) When locking, the outer peripheral gear and the inner peripheral gear of the dial are engaged with each other, the positions of the gate and the protrusion are displaced, and the protrusion does not fit into the gate. 2. A slide bar locking means for locking the slide bar in an unlocked position, and a slide bar releasing for disengaging the slide bar and the slide bar locking means to enable the locking operation of the slide bar. The code lock device according to claim 1, further comprising: an improper use prevention unit including a unit. 3. Each dial when the unlocking means for opening the lock part of the closed door and the position of the gate of the dial lock gear and the protrusion of the lock pin match without operating the slide bar when locking. 3. An unlocking number searching means having a search pin that is fitted into a small hole formed at a predetermined position of the lock gear and that can be operated only from the inside of the door. 4. A lock pin having a plurality of projections formed at predetermined intervals in the axial direction, and a side surface that abuts one end of the lock pin, and the side surface of the lock pin has projections and depressions of a predetermined shape. The operation of the lock pin is locked by the engagement with the lock bar for locking the door, and the slide bar that opens and closes the door by the operation is arranged coaxially with the rotation axis of the lock pin. The number of which corresponds to the number of the protrusions of the lock pin, the inner periphery of which has a gate that engages and disengages with the protrusion of the lock pin, and the outer periphery of which has a gear tooth, and the outer periphery of which is disengaged from the gear tooth of the lock gear. An intermediate gear having a peripheral gear tooth on the inner periphery and having another portion, for example, a gear tooth on the outer periphery, and a gear tooth engaging with a gear tooth on the outer periphery of the intermediate gear,
A dial with a code on the outer circumference, a zero return gear that is fixed to the dial and returns the dial to zero, and when the dial is all zero, fits the zero return gear and locks the slide bar. , When at least one of the dials is set to a value other than zero, an interlocking lever that locks the slide bar by not engaging with the zero return gear, and an operation of the interlocking lever provided on the slide bar. A return cam that controls the operation of the slide bar, an arm that drives the zero return gear so as to return the dial to zero when locking and unlocking, and an outer periphery of the intermediate gear. A setting section having a manual operation plate having gear teeth that engage with the gear teeth of. 5. A rack plate that interlocks with locking and unlocking operations of a slide bar in the lock part, and a locked state and an unlocked state due to the operation of the rack plate, which is fitted to a part of the rack plate during locking. The code lock device according to claim 4, further comprising: a lock plate having a protrusion. 6. A slide bar locking means for locking the slide bar in an unlocked position, and a slide bar opening for releasing the engagement between the slide bar and the slide bar locking means to enable the locking operation of the slide bar. 6. The code lock device according to claim 4 or 5, further comprising: means for preventing unauthorized use comprising means. 7. The lock gears when the locking means for opening the lock portion of the closed door and the positions of the gate of the lock gear and the protrusion of the lock pin are aligned with each other without operating the slide bar when locking. 7. The code lock device according to claim 4, further comprising: an unlocking number search means having a search pin that is fitted into a small hole formed at a predetermined position of the lock and that can be operated only from the inside of the door.