JP2001227214A - Signal takeout mechanism for lock - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance the convenience of operations and reduce the number of equipment and the time required for mounting operations. SOLUTION: In a signal takeout mechanism for a lock, a thumb turn tumbler 5 and a cylinder tumbler 7 are combined in opposite relation, and a horizontal shaft 28 is provided with a control gear 9 which meshes with thumb turn engagement teeth 21 formed on the tumbler 5 and cylinder engagement teeth 25 formed on the tumbler 7. The horizontal shaft 28 is provided with an output member 10 having an engagement projection 31 which engages the control finger section 30 of the control gear 9, and a switch 11 which is turned on or off depending on the rotational position of the output member 10 is disposed within a lock box 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a signal extracting mechanism for a lock, and more particularly, to a signal extracting mechanism for a lock called a lock for going out confirmation.

[0002]

2. Description of the Related Art Generally, locks in which dead bolts protrude from the front when a thumb tunder and a cylinder dharma are respectively rotated from inside and outside of a room are widely used. This type of lock is provided with a latch for temporary fixing in addition to a dead bolt for locking.

[0003] Conventionally, there are many separate devices of this kind of lock and a device called a "key switch" having a signal take-out mechanism for discriminating going out or being in the room. Of course, there is a concept of providing a signal extraction mechanism on a lock having a deadbolt and a latch.

However, when the user goes out, it is necessary to insert a duplicate key into an ordinary lock and turn the cylinder darma in the locking direction, and then insert a key into a key hole of a key switch to turn on a switch. Because of this, the operation becomes troublesome twice, which is a so-called troublesome operation. Of course, there is also a problem that it takes a long time for the mounting operation. On the other hand, the latter is not easy to rationally combine each member. However, at present, there is a demand for the appearance of a lock signal extraction mechanism that can be applied to ordinary locks.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned demands, and a first object of the present invention is to provide a lock mechanism which is generally used, and which is used to set a cylinder dharma with a duplicate key when going out. When turning in the locking direction to the position of
This means that the dead bolt projects from the front and is locked, and the switch of the signal extracting mechanism that can extract the signal for confirming the going out is simultaneously turned on. Thereby, for example, the convenience of the operation can be improved. A second object is that the output member does not interlock with rotation of the thumb-turn dharma in the locking direction from the indoor side. The third purpose is to reduce the number of parts,
The reason is to make effective use of the available space in the lock box.
That is, the purpose is to rationally combine the members.

[0006]

SUMMARY OF THE INVENTION The present invention relates to a signal take-out mechanism Y for a lock X in which a dead bolt 3 protrudes from a front 2 when a thumb-turn dharma 5 and a cylinder dharma 7 are respectively rotated from inside and outside the room. The Dharma 5 and the Cylinder Dharma 7 are combined face to face with each other, and the control gear 9 meshing with the thumb-turn engagement teeth 21 and the cylinder engagement teeth 25 formed on these Dharmas 5 and 7 is provided on the horizontal shaft 28. An output member 10 having an engagement projection 31 that engages with the control finger 30 of the gear 9 is provided on the horizontal shaft 28, and a switch 11 that can face the outer peripheral wall 34 a of the output member 10 is disposed in the lock box 1. Even if the control gear rotates by a predetermined amount via the thumb-turn dharma 5, the output member 10 does not interlock with the thumb-turn dharma 5. When the control gear via the dharma 7 rotates a predetermined amount, the output member 10 is characterized in that the state of the ON switch 11 in conjunction rotates in thumb-turn dharma 5.

[0007]

FIG. 1 schematically shows an example of an embodiment of the present invention from a "thumb turn side". First, for convenience of explanation, the environment of the embodiment of the present invention will be described with reference to FIG. 1
Is a lock box, 2 is a front, 3 is a deadbolt, and 4 is a latch. The lock X of the present invention is similar to a general lock,
When returning from outside and rotating the thumb-turn, the thumb-turn dharma 5 rotates counterclockwise, and the deadbolt 3 protrudes from the front 2 (so-called locked state). The Samtern Dharma 5 inserts a duplicate key (not shown) from the cylinder Dharma side into the center hole 6 of the Samtern Dharma 5,
When the duplicate key is rotated, the deadbolt 3 projects from the front 2 and becomes locked as in the case where the thumb turn is operated from the inside. Generally, the thumb-turn operation is performed from the indoor side, so that the thumb-turn dharma 5 rotates counterclockwise when locked, based on FIG. 1 viewed from the indoor side.

On the other hand, on the side opposite to the Samtan Dharma 5, that is, on the outdoor side, there is provided a cylinder Dharma 7 (see FIGS. 5 to 7) which slides and rotates coaxially so as to overlap the Samtern Dharma 5. The deadbolt 3 protrudes from the front 2 when a duplicate key (not shown) is inserted into the cylinder darma 7 into the darma hole 8 and the cylinder darma 7 is rotated clockwise.

As described above, the dead bolt 3 of the lock X is
From the indoor side, the thumb turn darma 5 is rotated counterclockwise, while from the outdoor side, the cylinder darma 7 is rotated clockwise to project from the front 2.

Now, the lock signal extracting mechanism Y of the present invention will be described.
In the ordinary general lock X, the thumb turn derma 5 and the cylinder derma 7 housed in the lock box 1, the control gear 9 meshing with these dermas 5 and 7, and the switch are turned ON / O.
The combination of the output member 10 for FF and the switch (microswitch as an example) 11 is characteristic, and the following description will focus on these members.

FIG. 2 is an explanatory view showing three members, which are main parts of the present invention, from the "thumb turn side". In the present invention, the switch 11 is turned on when the cylinder darma 7 is rotated to a predetermined position with a duplicate key at the time of locking. Therefore, the description should be made from the cylinder dalma 7 (outdoor) side. Because it does not appear well (intelligible),
For convenience of explanation, “Sumturn Dharma 5”, “Cylinder Dharma 7”, “Control Gear 9”, and “Output Member 10” are shown in perspective from the thumbturn side. Therefore, these members will be described in order.

First, as shown in FIG. 1, the thumb turn derma 5 is rotatably provided in a portion of the lock box 1 near the upper left corner. As is well known, the thumb darma 5 is connected to a thumb turn (not shown) and has the above-described center hole 6.

Reference numeral 15 denotes a disk-shaped engaging plate having an arcuate guide hole 16 in the circumferential direction. The engaging plate 15 is directed toward the rear end of the dead bolt 3 (extends in the radial direction). A lever portion 17 is provided continuously. An end of the lever portion 17 is connected to a dead bolt control rod 19 that passes through a rear end of the dead bolt 3 via a pivot 18. In addition,
Below the deadbolt control rod 19, a deadbolt locking bar 20 is appropriately disposed.

Reference numeral 21 denotes a portion of the engagement plate portion 15 which projects in a semicircular shape, and which is a thumb-turn engagement tooth 21 which is formed on the outer periphery of the portion where the guide hole 16 is located. The number of teeth of the thumb-turn engagement teeth 21 is smaller than the number of teeth of the cylinder engagement teeth 25 of the cylinder darma 7 described later. Further, in this embodiment, the thumb-turn engaging teeth 21 are provided with the cylinder damper 7.
Is formed on the outer peripheral portion near the lever portion 17 so as not to mesh with the control gear 9 in the initial position.

Reference numeral 22 denotes a fitting shaft protruding from one side surface of the engaging plate portion 15. Inside the fitting shaft 22, a circular fitting recess 2 of the cylinder darma 7 (not shown), which will be described later, is provided.
A circular fitting recess similar to 7 is formed. The thumb turn derma 5 rotates cooperatively around the fitting shaft portion 22.

Next, the cylinder dharma 7 is rotatably provided in the lock box 1 so as to face the thumb turn dharma 5. The cylinder darma 7 is usually connected to an inner cylinder of a cylinder lock (not shown). Thus, the cylinder dharma 7 is slightly disc-shaped as a whole,
A part 2 that protrudes in a semicircular shape like Samtern Dharma 5
The cylinder engaging teeth 25 are provided substantially all around the outer peripheral portion of 5a. An engagement pin 26 that always engages with the guide hole 16 of the thumb turn darma 5 is provided at the center of the projecting portion 25a. Therefore, when the thumb-turn dharma 5 is rotated, the engagement pin 26 having a clutch function is rotated.
, The cylinder darma 7 is synchronously rotated to a predetermined angle.

Reference numeral 27 denotes a circular fitting recess formed from the side having the engaging pin 26. The circular fitting recess 27 communicates with the above-mentioned daruma hole 8. In addition, although not particularly shown, the cylinder dharma 7 and the Samtan dharma 5 are combined so that they do not fall apart from each other.
For example, a cylindrical fitting body is incorporated in the circular fitting recess 27.

Next, as shown in FIG. 1, one control gear 9 is provided with a horizontal shaft 28 between the cylinder dharma 7 and the thumb turn dharma 5 and the switch 11 fixedly arranged at the upper right in the lock box 1. It is provided rotatably through the. The control gear 9 meshes with both the cylinder engagement teeth 25 and the thumb turn engagement teeth 21. In FIG. 2, the back side and the front side of one control gear 9 are shown so as to be visible. This does not mean that there are two control gears.

Reference numeral 29 denotes a boss protrudingly formed on the side wall of the control gear 9 on the thumb turn side. Reference numeral 30 denotes a C-shaped control finger protruding from the side wall of the control gear 9 on the cylinder side. The control finger portion 30 can enter a notch portion of the output member 10 described below, and can contact the engagement protrusion 31.

The output member 10 has a horizontal shaft 2 similar to the control gear 9.
8 are provided. Control gear 9 and output member 10
And coaxially overlap each other. As described above, the arc-shaped thick surrounding portion 34 which projects in the thickness direction of the lock box 1 and is slightly larger than the semicircular shape is continuously provided on the center plate portion 33 having the shaft hole 32 of the output member 10. I have. And
The inner diameter of the arc-shaped thick surrounding portion 34 has a size capable of receiving the control finger portion 27 described above.

The engaging projections 31 protrude radially into the notches formed by the arc-shaped thick surrounding portions 34 in the form of claws, and both side surfaces 31a, 31a are both end surfaces of the control finger portion 30. 30a can be selectively engaged with 30a.

Reference numeral 35 denotes an outer peripheral wall 34 of the arc-shaped thick surrounding portion 34.
The switch driving unit 35 is formed in a protruding shape on the switch a. The switch driving unit 35 does not press the movable piece 11a of the switch 11 even when the thumb turn darma 5 rotates from the initial position to the locking direction as described later ( On the other hand, when the cylinder dharma 7 rotates in the locking direction from the initial position, the movable contact piece 11a of the switch 11 is pressed (FIG. 7).

Referring to FIGS. 3 and 4, a case where the output member 10 does not interlock with the thumb-turn dharma 5 even when the thumb-turn dharma 5 is rotated from the indoor side will be described.

FIG. 3 is an explanatory diagram viewed from the thumb turn side. This figure enters the room, and from now on Samtern Dharma 5
Is turned counterclockwise from the indoor side. At this time, the lever portion 17 of the Samtern dharma 5 is located on the left side of the center hole 6. The engagement pin 26 of the cylinder darma 7 is located on the right side of the guide hole 16 of the thumb daruma 5. The thumb-turn engagement teeth 21 of the thumb-turn dharma 5 are not meshed with the control gear 9.
Further, the switch driving section 35 of the output member 10 is separated from the movable contact piece 11a of the switch 11. Therefore,
The switch 11 is off. In addition, the upper end surface 30a of the control finger portion 30 of the control gear 9 is slightly separated from one side surface 31a of the engagement protrusion 31 of the output member 10.

Then, as shown in FIG. 4, when the thumb-turn dharma 5 is rotated counterclockwise for locking, the thumb-turn engagement teeth 21 of the thumb-turn dharma 5 are turned halfway.
Engages with the control gear 9. This causes the control gear 9 to start turning clockwise. When the thumb turn derma 5 is further rotated to a predetermined angle, the control gear 9 stops at a predetermined position. In this case, the dead bolt 3 projects from the front 2. The upper end surface 3 of the control finger 30 of the control gear 9
Although 0a rotates and shifts to a position where it can come into contact with one side surface 31a of the engagement projection 31 of the output member 10, the control member 9 does not rotate more than necessary, so that the output member 10 is not rotated clockwise. This is because, in the locked state, the thumb turn dharma 5 is not engaged with the control gear 9 (in this point, different from the cylinder dharma 7), and therefore the timing to start engaging with the control gear 9 is later than the cylinder dharma 7. is there. Therefore, the output member 10 does not interlock with the thumb-turn dharma 5, and the switch 11 remains OFF.

Next, a case where the cylinder darma 7 is rotated in the locking direction will be described with reference to FIGS.
When the cylinder dharma 7 is rotated, the output member 10 is interlocked via the control gear 9 unlike the case of the thumb turn dharma 5. As a result, the switch 11 is turned on
State.

FIG. 5 is an explanatory view as viewed from the cylinder dharma 7 side. This figure shows a case where the cylinder dharma 7 is to be turned clockwise from outside. At this time, the position of the lever portion 17 of the thumb turn derma 5 appears opposite to that in FIG. 3 and is located on the right side. The engagement pins 26 and the like of the cylinder darma 7 are imaginary lines in the drawing.

FIG. 5 shows a case where the dead bolt 3 in the unlocked state is about to protrude from the front 2 in order to go out. In this case, the cylinder engagement teeth 25 of the cylinder dharma 7 mesh with the control gear 9. As shown in FIG. 7, the upper end surface 30a of the control finger 30 of the control gear 9 is
(See FIG. 4). Then, the switch driving unit 35 of the output member 10
It is separated from the one movable contact piece 11a. Therefore, the switch 11 is off.

Then, as shown in FIG. 6, when the cylinder darma 7 is rotated clockwise by a predetermined amount with a duplicate key (not shown), the dead bolt 3 projects from the front 2 and
As shown in FIG. 7, the control gear 9 rotates counterclockwise,
Thereby, the output member 10 rotates in the same direction. As a result, the switch driving unit 35 of the output member 10
1a is pressed, and the switch 11 is turned on. In other words, when the user goes out after locking, the switch 11 of the lock signal extraction mechanism Y is turned ON, and this can be extracted as an "exit signal".

[0030]

In FIG. 2, the Samtan Dharma 5 has a guide hole 16 in the circumferential direction, in which an engagement pin projecting from the cylinder Dharma 7 is engaged. The design of the engagement relationship with the cylinder dharma 7 can be arbitrarily changed. For example, there is a case where a guide hole is formed in the cylinder dharma 7 and an engagement pin that engages with the guide hole is provided in the thumb turn dharma 5.

The switch 11 has a movable contact piece 11a. On the other hand, a switch driving section 35 which can be pressed against the movable contact piece 11a is provided on the outer peripheral wall 34a of the output member 10 in a protruding manner. The switch 11 is not limited to this, and may be, for example, a magnetically responsive switch. Therefore, the movable contact piece 11a and the protruding switch drive unit 35
Is not a specific requirement of the present invention.

[0032]

As is apparent from the above description, the present invention has the following operations and effects. (1) In a commonly used lock mechanism,
When the cylinder darma is turned to the predetermined position with the duplicate key in the locking direction when going out, the switch of the signal extraction mechanism that allows the dead bolt to protrude from the front to be in the locked state and extract the signal for going out confirmation Is O at the same time
The state becomes N. Therefore, the convenience of operation can be improved, the number of devices can be reduced, and the time required for mounting work can be reduced. (2) Even if the thumb turn darma is rotated in the locking direction from the indoor side, the output member does not interlock with it. (3) Since the number of parts is reduced and the respective members are rationally combined, the effective space in the lock box can be rationally used.

[Brief description of the drawings]

 1 to 7 are explanatory views showing an embodiment of the present invention.

FIG. 1 is a schematic explanatory view showing an example of an embodiment of the present invention.

FIG. 2 is an exploded perspective view of a main member.

FIG. 3 is a schematic explanatory view of the unlocked state as seen from the side of the Samtan Dharma.

FIG. 4 is an explanatory view of a case in which the thumb turn dharma is rotated in the locking direction in the state of FIG. 3;

FIG. 5 is a schematic explanatory view of the unlocked state as viewed from the cylinder darma side.

FIG. 6 is a schematic explanatory view of the locked state as viewed from the cylinder darma side.

FIG. 7 is an explanatory view of a case where the cylinder dharma is rotated in the locking direction in FIG. 5;

[Explanation of symbols]

X: lock, Y: signal extraction mechanism, 1: lock box, 2: front, 3: deadbolt, 4: latch, 5: thumb turn dharma, 6: center hole, 7: cylinder dharma, 8: dharma hole, 9 ... Control gear, 10 ... output member, 11 ... switch,
11a: movable contact piece, 15: engaging plate portion, 16: guide hole,
17 ... Lever part, 21 ... Thumb turn engagement teeth, 25 ... Cylinder engagement teeth, 26 ... Engagement pin, 27 ... Circular fitting recess,
28 ... horizontal axis, 30 ... control finger part, 31 ... engagement protrusion, 35 ...
Switch drive.

Claims (5)

[Claims] When a thumb bolt and a cylinder drum are rotated from inside and outside of a room, respectively, the thumb bolt and the cylinder drum are connected to each other in a signal extraction mechanism Y of a lock X in which dead bolts 3 protrude from a front 2 respectively. The control gear 9 which meshes with the thumb-turn engagement teeth 21 and the cylinder engagement teeth 25 formed on the dharma 5 and 7 respectively is provided on the abscissa 28 so that the control fingers 30 of the control gear 9 An output member 10 having an engaging projection 31 to be engaged is provided on the horizontal shaft 28, and a switch 11 capable of facing the outer peripheral wall 34 a of the output member 10 is provided in the lock box 1, When the control gear rotates by a predetermined amount, the output member 10 does not interlock with the thumb-turn dharma 5, while the control gear Is rotated by a predetermined amount, the output member 10
Turns the switch 11 to O in conjunction with the Samtern Dharma 5
A lock signal take-out mechanism, wherein the lock state is set to N. 2. The switch 11 according to claim 1, wherein the switch 11 has a movable contact piece 11a.
, A switch drive unit 35 that can be pressed against the movable contact piece 11a is provided so as to protrude therefrom. 3. The control finger portion 30 of the control gear 9 according to claim 1, wherein the control finger portion 30 is formed in a C-shape, while the engagement protrusion 31 of the output member 10 is formed in a claw shape. Features a lock signal extraction mechanism. 4. The method according to claim 1, wherein the Samtan Dharma 5
Characterized in that the number of the thumb-turn engaging teeth 21 is smaller than the number of the cylinder engaging teeth 25 of the cylinder darma 7. 5. The method according to claim 1, wherein the Samtan Dharma 5
Is a lock signal extracting mechanism characterized in that a guide hole 16 is provided in the circumferential direction, and an engaging pin 26 protruding from the cylinder darma 7 is engaged with the guide hole 16.