JP4036624B2 - Locking device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a locking device for a door or the like that can be used for locking / unlocking operation with a manual twist knob and locking / unlocking operation with a wireless or wired remote control switch.
[0002]
BACKGROUND OF THE INVENTION
In the first place, the main shaft which makes the lock locked and unlocked, the drive main plate provided on the main shaft so as to move integrally with the main shaft, the drive auxiliary plate which moves the drive main plate in the locking direction / unlocking direction, etc. A transmission device provided between the main driving plate and the auxiliary driving plate for transmitting the rotational force of the auxiliary driving plate in the range from the neutral position to the locking position and in the range from the neutral position to the unlocking position, and a motor for moving the auxiliary driving plate In the case of unexpected locking, the position of the dead bolt and its fitting hole due to, for example, a so-called half-open state of the door in the middle of the electric locking or unlocking operation, the dead bolt or the fitting hole There is a problem such as causing an abnormal situation in which the above-described locking or unlocking operation cannot be performed smoothly due to deformation of the
[0003]
[Problems to be solved by the invention]
An object of the present invention is to provide a novel locking device that has been devised to solve the above problems.
[0004]
[Means for Solving the Problems]
In order to achieve the above object, a locking device according to the present invention includes a main shaft that locks and unlocks a lock, a driving main plate that is provided on the main shaft so as to move integrally with the main shaft, and a locking direction of the driving main plate.・ A structure that transmits the rotational force of the driving auxiliary plate between the neutral position to the locking position and the range from the neutral position to the unlocking position between the driving auxiliary plate that moves in the unlocking direction and the driving main plate and the driving auxiliary plate. Driven by a first driving auxiliary plate and a second driving auxiliary plate, wherein the driving auxiliary plates are superposed so as to be mutually rotatable and close to each other. An auxiliary plate is configured, and a slip clutch for preventing motor lock is provided between the first drive auxiliary plate and the second drive auxiliary plate.
[0005]
The first driving auxiliary plate and the second driving auxiliary plate are supported on the auxiliary shaft so as to be rotatable and slidable and cannot be detached, and the first driving auxiliary plate and the second driving auxiliary plate are mutually attached to the auxiliary shaft. Both are equipped with a compression coil spring to be pressed, and hemispherical convex portions and hemispherical concave portions are provided at as many as possible intervals on the circular line on both pressing surfaces. A slip clutch portion is provided between the plates.
[0006]
【Example】
The embodiment shown in the figure also serves as a main shaft 1 that secures a locked state (not shown) and an unlocked state of the lock, and a locking / unlocking position detection plate that is provided on the main shaft 1 so as to move integrally with the main shaft 1. The driving main plate 2, the first driving auxiliary plate 3 for moving the locking / unlocking position detecting plate / driving main plate 2 in the locking / unlocking direction, the locking / unlocking position detecting plate / driving main plate 2, and the first driving auxiliary plate 3 A transmission device provided with a configuration for transmitting the rotational force of the first driving auxiliary plate 3 in the range between the neutral position and the locking position and in the range from the neutral position to the unlocking position, and the first driving auxiliary plate Provided between the first drive auxiliary plate 3 and the second drive auxiliary plate 6, the second drive auxiliary plate 6 that moves the motor 3, the motor 4 that moves the second drive auxiliary plate 6 via the gear device 5, and the like. It has a slip clutch 7 to prevent motor lock It is intended.
[0007]
The main shaft 1 has a square shaft portion 11 on the inner end side which is the inside of the house, a round shaft portion 12 on the middle portion, and a spline shaft 13 on the outer end. The spline shaft 13 has a dead bolt (see FIG. A base end of an arm (not shown) that is in a locked state and an unlocked state (not shown) is non-rotatably attached, and is attached to an equipment case 10 that is mounted on a house door. That is, the manual twist knob 14 is supported on the wall of the device case via the bearing portion 15, the shaft hole 16 is formed in the inner end surface of the manual twist knob 14, and the main shaft 1 is fixed to the shaft hole 16. As a result, the spindle 1 is attached to the door of the house through the equipment case.
[0008]
Insulating material in which the auxiliary ring member 18 is fitted and arranged around the base end portion of the angular shaft portion 11 of the main shaft 1 attached to the door in this manner and is fixed in the device case. A rotation angle regulating notch 19 is provided on the inner side surface of the auxiliary ring member 18 and has a fan shape with the angular shaft portion 11 as the center.
[0009]
The locking / unlocking position detection plate / drive main plate 2 is composed of a bearing portion 21 and a disc portion 22 whose inner periphery is a square hole and whose outer periphery is a round shape. It is fitted to the portion 11 so as to move integrally with the main shaft 1, and the coaxial bearing portion 21 is rotatably fitted to the inner diameter hole of the auxiliary ring member 18 to support the main shaft 1 so as not to be shaken and the disk portion 22. Rotation angle restriction that restricts the rotation range to about 90 degrees by striking the both edges of the rotation angle restriction notch 19 on one side, specifically, the range in which the manual twist knob 14 can be moved from the locked position to the unlocked position. And a pair of guide protrusions 24 and 25 are provided around the other surface of the disk portion 22, and a protrusion 26 is provided at the periphery of the disk portion 22. A permanent magnet 27 for position detection is attached.
[0010]
The first driving auxiliary plate 3 is rotatably attached to a cylindrical auxiliary shaft 29 on a round shaft portion 12 of the main shaft 1 and is rotatably and slidably supported on the cylindrical auxiliary shaft 29. A pair of engaging protrusions 30 and 31 are engaged with the guide protrusions 24 and 25 in the middle of operation to rotate the locking / unlocking position detection plate / drive main plate 2 in the locking direction or vice versa. Further, a projecting portion 33 is provided on one of the engaging projections 30 and 31, and a midpoint position detecting permanent magnet 34 is attached thereto. That is, the guide protrusions 24 and 25 and the engagement protrusions 30 and 31 are arranged so that the rotational force of the first drive auxiliary plate 3 is shifted from the neutral position between the locking / unlocking position detection plate / drive main plate 2 and the first drive auxiliary plate 3. A transmission device that performs a transmission function in the range between the locked positions and in the range from the neutral position to the unlocked position is formed.
[0011]
The second driving auxiliary plate 6 is supported on the cylindrical auxiliary shaft 29 so as to be rotatable and slidable in the same manner in a state of being superimposed on the first driving auxiliary plate 3, and the first driving auxiliary plate 3 and the second driving auxiliary plate 3. The driving auxiliary plate 6 cannot be removed by the flange 35 integrally provided at one end of the cylindrical auxiliary shaft 29 and the E-type retaining ring 36 attached to the other end, and the E-type retaining ring 36 on the cylindrical auxiliary shaft 29 A compression coil spring 37 is provided between the second drive auxiliary plates 6 so that the second drive auxiliary plate 6 and the first drive auxiliary plate 3 are pressed against each other. The slip clutch portion 7 is provided between the plates 3 and 6 by providing as many hemispherical convex portions 38 and hemispherical concave portions 39 as possible at equal intervals on the line.
[0012]
However, the slip clutch portion 7 has a so-called movement start state when the second driving auxiliary plate 6 rotates in the locking direction and a movement start state when the second driving auxiliary plate 6 rotates in the unlocking direction during many trials. Then, although it has not been confirmed whether it is caused by the winding direction of the compression coil spring 37, the position of the rotation center of the motor 4 or the position of the shaft of the gear device 5, there is always an unbalanced state in which it is difficult to start one of them. It was found to occur.
[0013]
Therefore, in the present invention, as a solution for solving the above-mentioned unbalanced state, as shown in the cross-sectional view and the bottom view shown in FIG. It is a form that can be easily detached.
[0014]
In this case, since the hemispherical convex portion 38 and the hemispherical concave portion 39 are provided on the overlapping side surface of the first driving auxiliary plate 3 and the second driving auxiliary plate 6, (1) provision of the convex portion 38 and the concave portion 39 is provided. The radius of the position can be increased to increase the number, (2) the increase in the number can efficiently distribute the load of slip torque, and (3) the increase in the number increases the pressing force by the compression coil spring 37. (4) Wide range of types of compression coil springs 37 (with different stress ranges) entering the space between the E-type retaining ring 36 and the second driving auxiliary plate 6, that is, wide adjustment range of slip torque. (5) When it is difficult to start moving on the wall surface of the concave portion 39, the unbalance of the moving start can be eliminated and the movement can be smoothed by scraping the surface 42 in contact with the convex portion 38.
[0015]
The motor 4 and the gear device 5 described above are provided on the wiring board 17 so as to transmit the rotational force of the motor 4 to the gear portion 44 engraved on the outer peripheral edge of the second driving auxiliary plate 6. The motor 4 has a gear device 5 and a gear portion 44 composed of five gears 50... By a unique signal transmitted from a remote controller (not shown) to be described later and the reed switches 47, 48, 49 being turned on. The second driving auxiliary plate 6 is rotated forward or reverse.
[0016]
Further, a lock position detecting reed switch 47, an unlocking position detecting reed switch 48 and a midpoint position detecting reed switch 49 are arranged around the auxiliary ring member 18 in the wiring board 17. When the lock position detecting reed switch 47 is turned on when the lock position detecting permanent magnet 27 is approached, the motor 4 is operated to return to the neutral state, and the unlock position detecting reed switch 48 is unlocked. When the position detection permanent magnet 27 is turned on when the position detection permanent magnet 27 is turned on, the motor 4 is operated in the opposite direction to return to the neutral state. Further, the midpoint position detection lead switch 49 is the above-described lock position detection reed switch. When the neutral position is reached by the ON operation of 47, and when the neutral position is reached by the ON operation of the unlocking position detection reed switch 48, the ON state is brought about by the approach of the middle point position detecting permanent magnet 34. Thus, the motor 4 is stopped, and thus a state in which manual operation by the manual twist knob 14 is possible is realized.
[0017]
Although this implementation is not described in detail, it is made by an electric circuit including the control of the motor, and this electric circuit has a control unit for designating / deleting / changing a recitation number and the like. Yes.
These are incorporated into the case 10 to form a unit, and are attached to the door for use.
[0018]
The operation of the above embodiment will be described.
First, in the locked state, when unlocking is instructed by the remote controller, the motor 4 rotates the second driving auxiliary plate 6 and the first driving auxiliary plate 3 and the main shaft 1 through the gear device 5 in the unlocking direction and dead. The bolt is unlocked, and the unlocking position detecting permanent magnet 27 is rotated and moved along with the rotation of the unlocking direction to approach the unlocking position detecting reed switch 48, and the unlocking position detecting reed switch 48. Is turned on, the unlocked state is sensed, the sensing signal is sent to the control unit to stop the motor 4 for a moment, and then rotate in the opposite direction to rotate the second driving auxiliary plate 6 and the first driving auxiliary plate 3 , And the midpoint position detecting permanent magnet 34 also moves in the reverse direction and approaches the midpoint position detecting reed switch 49, and the midpoint position detecting reed switch 49 is turned on. New as condition A neutral state in which a manual locking / unlocking operation can be freely performed by the manual twist knob 14 in the unlocking state by electric power. Form.
[0019]
In the unlocked state, when locking is instructed by the remote controller, the motor 4 rotates the second driving auxiliary plate 6 and the first driving auxiliary plate 3 and the main shaft 1 in the locking direction via the gear device 5 to cause dead bolts. And the locking / unlocking position detecting permanent magnet 27 also rotates and moves close to the locking position detecting reed switch 47 with the rotation in the locking direction, and the locking position detecting reed switch 47 is turned on. Detecting the locked state, sending the detection signal to the control unit and stopping the motor 4 for a moment, and then rotating in the opposite direction to bring the second driving auxiliary plate 6 and the first driving auxiliary plate 3 into the reverse rotation state, Along with the reverse rotation, the midpoint position detecting permanent magnet 34 is also rotated in the reverse direction to approach the midpoint position detecting reed switch 49, and the midpoint position detecting reed switch 49 is turned on. The neutral state is sensed, and the sensor 4 is sent to the control unit to stop the motor 4, thereby forming a neutral state in which manual locking / unlocking operation by the manual twist knob 14 can be freely performed in the electric locking state. To do.
[0020]
As described above, it is in a neutral state in which manual locking / unlocking can be performed arbitrarily even when it is locked or unlocked by electric drive. In the case of a lock, only the main shaft 1 and the first drive auxiliary plate 3 side rotate, and the rotation is not transmitted to the second drive auxiliary plate 6 and is in a free state.
In addition, it is in a neutral state in which it can be arbitrarily locked and unlocked by electricity regardless of whether it is manually locked or unlocked. In this case, only the main shaft 1 and the first drive auxiliary plate 3 side rotate, and the rotation is not transmitted to the second drive auxiliary plate 6 and is in a free state.
[0021]
Furthermore, the above-mentioned locking operation or the above-mentioned locking operation or unlocking operation may be caused due to a position mismatch between the dead bolt and the strike due to a so-called half-open state or the deformation of the dead bolt or strike, etc. When an abnormal situation occurs in which the unlocking operation is not performed smoothly, the slip clutch unit 7 functions to avoid the abnormal situation.
[0022]
【The invention's effect】
Since the locking device according to the present invention has the above-described configuration, it has a remarkable effect that can be independently performed by manual locking / unlocking operation performed by a remote controller and electric locking / unlocking operation independently. Needless to say, in particular, a main shaft that locks and unlocks the lock, a driving main plate provided on the main shaft so as to move integrally with the main shaft, and a driving assist that moves the driving main plate in the locking direction and the unlocking direction. A transmission device provided with a configuration for transmitting the rotational force of the driving auxiliary plate between the neutral position to the locking position and the range from the neutral position to the unlocking position between the plate and the driving main plate and the auxiliary driving plate; In a locking device having a motor for moving the auxiliary plate, a driving auxiliary plate is constituted by a first driving auxiliary plate and a second driving auxiliary plate obtained by superimposing the driving auxiliary plates on each other so as to be rotatable and perspectively movable. Since a slip clutch for preventing motor lock is provided between the first drive assist plate and the second drive assist plate, the door is unforeseen due to, for example, a so-called half-open state during the electric locking or unlocking operation. It is possible to sufficiently eliminate the abnormal situation where the above locking operation or unlocking operation cannot be performed smoothly due to the position mismatch between the dead bolt and the strike, the deformation of the dead bolt or the strike, etc. In addition, the first drive auxiliary plate and the second drive auxiliary plate are supported to be rotatable and slidable and cannot be detached from the auxiliary shaft, and the first drive auxiliary plate and the second drive auxiliary plate are mutually attached to the auxiliary shaft. A compression coil spring to be pressed is installed, and up to as many hemispherical protrusions and hemispherical recesses as possible on the circular line on both pressing surfaces. Since the slip clutch part is provided between the two plates by providing it with a distant seat arrangement, (1) it is possible to increase the number of these protrusions and recesses by increasing the radius, and (2) When the number is increased, the load of slip torque can be efficiently distributed, and (3) the number of compression coil springs can be reduced by increasing the number, and (4) types of compression coil springs (with different stress ranges) This means that the adjustment range of the slip torque can be widened, and when it is difficult to start the movement on the wall surface of the concave part, it is possible to eliminate the imbalance of the movement and smooth the movement by scraping the surface where the convex part contacts. is there.
[Brief description of the drawings]
FIG. 1 is a perspective view of an essential part showing an embodiment of the present invention.
FIG. 2 is a sectional view taken along line 1A-A in FIG.
FIG. 3 is an exploded perspective view of the same.
FIG. 4 is an exploded perspective view seen from another direction.
FIG. 5 is a partially omitted front view.
FIG. 6 is a side view of the same.
FIG. 7 is an explanatory view showing a state in which the first drive assisting plate starts rotating in the locking direction in response to the unlocking instruction.
FIG. 8 is an explanatory view showing a state where the locking / unlocking position detection plate / drive main plate is rotated to the locking position detection reed switch.
FIG. 9 is an explanatory diagram showing a neutral state in which the first drive assisting plate is in a position where a midpoint position detection reed switch is turned on.
FIG. 10 is a side view showing a state where the slip clutch is slipping.
FIG. 11 is an explanatory view showing a recess of a slip clutch.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Main shaft 2 Locking / unlocking position detection plate / drive main plate 3 First drive auxiliary plate 4 Motor 5 Gear device 6 Second drive auxiliary plate 7 Slip clutch 10 Equipment case 11 Square shaft portion 12 Round shaft portion 13 Spline shaft 14 Manual twist knob 15 Bearing portion 16 Square shaft hole 17 Wiring base 18 Auxiliary ring member 19 Rotation angle regulating notch 21 Bearing portion 22 Disk portion 23 Rotation angle regulating projection 24 Guide projection 25 Guide projection 26 Projection portion 27 Locking / unlocking position detecting permanent magnet 29 Cylindrical auxiliary shaft 30 Engagement protrusion 31 Engagement protrusion 33 Protrusion part 34 Permanent magnet 35 for detecting the midpoint position Eave part 36 E-type retaining ring 37 Compression coil spring 38 Protrusion part 39 Concave part 42 Contact surface 44 Gear part 45 Back cover 47 Locking Reed switch for position detection 48 Reed switch for unlocked position detection 49 Reed switch for middle position detection 50 Gear

Claims (1)

A main shaft that locks the lock and the unlocked state, a drive main plate that is provided on the main shaft so as to move integrally with the main shaft, a drive auxiliary plate that moves the drive main plate in the locking / unlocking direction, and these drive main plates A transmission device provided in a configuration for transmitting the rotational force of the drive auxiliary plate between the drive auxiliary plate in a range from the neutral position to the locking position and in a range from the neutral position to the unlocked position; and a motor for moving the drive auxiliary plate. In the lock device provided, the first driving auxiliary plate and the second driving auxiliary plate are configured by overlapping the driving auxiliary plates so that they can rotate and move from each other. A slip clutch is provided between the two auxiliary drive plates to prevent motor lock,
The slip clutch supports the first drive auxiliary plate and the second drive auxiliary plate so that the first drive auxiliary plate and the second drive auxiliary plate can be rotated and slidable and cannot be detached from the auxiliary shaft, and the first drive auxiliary plate and the second drive are supported on the auxiliary shaft. A compression coil spring that presses the auxiliary plates against each other is equipped, and a hemispherical convex part and hemispherical concave part are arranged at equally spaced intervals on the circular line on both pressing surfaces. Formed by providing
A locking device, wherein a surface that contacts when the convex portion starts moving on the wall surface of the concave portion is formed by cutting.

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