JP2021055470A - Locking device - Google Patents

Abstract

To provide a locking device that has a simple structure and reduces the number of required components.SOLUTION: A locking device 4 includes: a striker 20 provided in either one of a vehicle body 1 and a door 3 for opening/closing an opening 2 formed in the vehicle body 1; a latch member 10 provided in the other of the vehicle body 1 and the door 3 and engaged with and disengaged from the striker 20; a sensor 30 for detecting an engaged position A of the striker 20 with which the latch member 10 can be engaged; and a closer motor mechanism 50 for controlling an engaging operation of the latch member 10 with the striker 20 based on the detection result of the sensor 30.SELECTED DRAWING: Figure 1

Description

The present invention relates to a locking device.

Among the opening / closing doors that open and close the openings on the side of the vehicle body, there is a sliding door that slides on the side surface of the vehicle body and in the front-rear direction. The fully closed state of the sliding door is maintained by the door lock device.
In addition to the above control device, the door lock device includes, for example, a latch member, a striker that enters a notch provided in the latch member, and a ratchet lever that engages with the first and second ratchet engaging portions provided in the latch member. A coil spring that urges the latch member and a coil spring that urges the ratchet lever are provided.

By the way, if the slide door is manually moved in the closing direction at high speed and the slide door is closed suddenly, a large load is applied to the deceleration mechanism or the like forming the actuator due to the sudden stop of the slide door. .. In order to prevent damage to the actuator from such a large load, a control device for a vehicle opening / closing body has been created in which the drive source is brake-controlled when the opening / closing body is manually closed. This control device is incorporated in, for example, a door lock device.

Further, the control device includes, for example, a ratchet switch provided in the vicinity of the ratchet lever, and a half-latch switch and a full-latch switch provided in the vicinity of the latch member. The ratchet switch, half-latch switch, and full-latch switch switch ON / OFF depending on whether or not the ratchet lever is engaged with the first and second ratchet engaging portions. The control device recognizes and controls the state of the sliding door by turning on / off the above three switches.

Japanese Unexamined Patent Publication No. 2015-140519

In the above-mentioned prior art, the lock device has a complicated structure and requires a large number of parts.

Therefore, the present invention provides a locking device having a simple structure and capable of reducing the number of required parts.

In order to solve the above problems, the locking device according to the present invention includes a striker provided on either a vehicle body or an opening / closing body for opening / closing an opening provided in the vehicle body, and the vehicle body and the opening / closing body. Based on the detection results of a latch member provided on either one of the strikers that engages and disengages the striker, a sensor that detects the engaged position of the striker that the latch member can engage with, and a detection result of the sensor. A closer motor mechanism for controlling the engagement operation of the latch member with the striker is provided.

In the above configuration, the locking device according to the present invention controls the opening / closing operation of the opening / closing body, and stops the closing operation of the opening / closing body when the engaged position of the striker is detected by the sensor. A motor mechanism and a control unit that operates the closer motor mechanism when the opening / closing body is stopped at the engaged position may be provided.

In the above configuration, the locking device according to the present invention includes a position switch for detecting the engagement completion position of the latch member with the striker, and the control unit detects the engagement completion position when the position switch detects the engagement completion position. The closer motor mechanism may be stopped.

In the above configuration, the striker is conductive and the sensor is generated by passing between a pair of magnets arranged such that the striker passes between them and the striker passing between the pair of magnets. It may have a current sensing sensor that detects a magnetic field current.

In the above configuration, the striker may be an annular member.

According to the present invention, it is possible to provide a lock device having a simple structure and capable of reducing the number of required parts.

It is a schematic diagram of a lock device. It is a schematic diagram of a lock device. It is a schematic diagram of a lock device. It is a schematic diagram of a lock device. It is a schematic diagram of a lock device. It is a flowchart which shows the operation process of a lock device.

Next, an embodiment of the present invention will be described with reference to FIGS. 1 to 6.

FIG. 1 is a schematic view of the lock device 4.
As shown in FIG. 1, the vehicle (not shown) of the present embodiment has an opening 2 provided in the vehicle body 1, a door 3 for opening and closing the opening 2 (an example of an opening / closing body according to a claim), and an opening. 2 is provided with a locking device 4 for locking the door 3.
The lock device 4 is mounted on a vehicle, a striker 20 provided in the opening 2, a latch member 10 provided in the door 3 that engages with and detaches from the striker 20, a sensor 30 that detects the position of the striker 20. , The spindle motor mechanism 40 that controls the opening / closing operation of the door 3, the closer motor mechanism 50 that controls the engagement operation of the latch member 10 with the striker 20, and the position switches 60a and 60b (third) that detect the position of the latch member 10. 1 position switch 60a, 2nd position switch 60b), a control unit 70 such as a sensor 30, a spindle motor mechanism 40, a closer motor mechanism 50, and an ECU (Electronic Control Unit) that controls the position switches 60a, 60b, and a door 3. It includes an operation switch 80 for operating opening and closing.

The latch member 10 is housed in the recess 3a of the door 3. As the door 3 opens and closes, the latch member 10 approaches and separates from the striker 20. The latch member 10 is formed in a U-shaped rod shape.

The striker 20 has conductivity and is formed in an annular shape. The striker 20 is provided at a position corresponding to the latch member 10. When the opening 2 is closed by the door 3, the striker 20 is inserted into the recess 3a. When the striker 20 is inserted into the recess 3a, the latch member 10 is in a state where it can engage with the striker 20. Hereinafter, the position of the striker 20 at this time is referred to as an engaged position A.

The sensor 30 detects the engaged position A of the striker 20. The sensor 30 has a magnet 31 arranged in the recess 3a of the door 3 and a current sensing sensor 32 that detects the current flowing through the striker 20. When the door 3 is in the closed state, the magnets 31 are arranged in pairs on both sides of the striker 20 and side by side in the axial direction C direction of the striker 20.
Here, the striker 20 passes between the pair of magnets 31 during the closing operation in which the door 3 shifts from the open state to the closed state, or during the opening operation in which the door 3 shifts from the closed state to the open state. At this time, the magnetic field current I flows through the striker 20 under the influence of the magnetic flux of the magnet 31. The current sensing sensor 32 detects this magnetic field current I.

The spindle motor mechanism 40 is electrically connected to a spindle motor main body 41 having a rotating shaft (not shown) for opening and closing the door 3 and a spindle motor main body 41, and detects the rotational position of the rotating shaft of the spindle motor main body 41. It has a spindle motor sensor 42 and.

The closer motor mechanism 50 has, for example, a closer motor main body and a rotation shaft of the closer motor main body (neither of them is shown).
The closer motor mechanism 50 is connected to the latch member 10.
The closer motor mechanism 50 engages or disengages (disengages) the latch member 10 with the striker 20 at the engaged position A. The closer motor mechanism 50 completely engages the latch member 10 with the striker 20. Hereinafter, the position of the latch member 10 completely engaged with the striker 20 is referred to as an engagement completion position B.

The position switches 60a and 60b are provided in the recess 3a. A pair of position switches 60a and 60b are provided on both sides of the striker 20 in the axial direction C direction with the latch member 10 at the engagement completion position B interposed therebetween.
The control unit 70 comprehensively controls the current sensing sensor 32, the spindle motor main body 41, the spindle motor sensor 42, the closer motor mechanism 50, the position switches 60a and 60b, and the operation switch 80. ..
The operation switch 80 is provided in the vehicle interior so that the occupant can operate it. The signal output by operating the operation switch 80 is output to the control unit 70. The control unit 70 outputs a control signal to the spindle motor main body 41 based on the output signal from the operation switch 80. The spindle motor main body 41 opens and closes the door 3 based on the control signal.

(Operation process of lock device)
Subsequently, the operation process of the lock device 4 will be described with reference to FIGS. 1 to 6.
2 to 5 are schematic views of the lock device 4 at each stage during operation.
FIG. 6 is a flowchart showing the operation process of the lock device 4.
The operation process of the lock device 4 is roughly divided into a closing process of changing the door 3 from the open state to the closed state and an opening process of changing the door 3 from the closed state to the open state.
First, the closing process will be described.

As shown in FIG. 6, the occupant determines whether or not the door 3 is in the open state (step S01). In the following description, the state in which the latch member 10 is engaged with the striker 20 and is in the engagement completion position B is defined as the fully closed state of the door 3, and the state in which the door 3 is not fully closed is the open state of the door 3. Is defined as. When the door 3 is in the open state, the striker 20 is separated from the recess 3a of the door 3 as shown in FIG. When the determination in step S01 is "YES", that is, when the door 3 is in the open state and the occupant wants to fully close the door 3, the operation switch 80 is used to close the door 3 (step S02). .. If the determination in step S01 is "NO", the flow of the opening process described later is entered.
When the door 3 is closed by the operation switch 80, the spindle motor main body 41 is operated based on the control signal from the control 70 (step S03). Then, the door 3 starts the closing operation, and the striker 20 approaches the recess 3a.

As shown in FIG. 3, the striker 20 is inserted into the recess 3a and passes between a pair of magnets 31 provided in the recess 3a. Then, a magnetic field current I is generated in the striker 20 under the influence of the magnetic flux of the magnet 31. The current sensing sensor 32 detects the magnetic field current I of the striker 20. When the current sensing sensor 32 detects the magnetic field current I, it outputs a signal to the control unit 70. The control unit 70 determines whether or not the magnetic field current I is generated based on the output signal from the current sensing sensor 32 (step S04).

When the determination in step S04 is "NO", that is, when the magnetic field current I is not generated, the spindle motor main body 41 continues to operate. That is, the striker 20 keeps approaching the recess 3a. When the determination in step S04 is "YES", that is, when the magnetic field current I is generated, the control unit 70 outputs a control signal to the spindle motor main body 41 based on the output signal from the current sensing sensor 32. To do. Based on the control signal from the control unit 70, the spindle motor main body 41 is stopped (step S05), and the striker 20 is stopped. That is, the door 3 stops the closing operation (step S06).
At this time, the striker 20 is in the engaged position A capable of engaging with the latch member 10.
When the spindle motor main body 41 stops and the door 3 stops closing, the control unit 70 outputs a control signal to the closer motor mechanism 50. The closer motor mechanism 50 is operated based on the control signal from the control unit 70 (step S07).

Here, the operation of the closer motor mechanism 50 in step S07 will be described in detail.
As shown in FIG. 4, the closer motor mechanism 50 causes the latch member 10 to start the engagement operation with the striker 20. At this time, the latch member 10 rotates while pulling in the striker 20.
When the latch member 10 starts to rotate, the latch member 10 is detected by the first position switch 60a among the position switches 60a and 60b, and the first position switch 60a is turned on. When the first position switch 60a is turned on, it outputs a signal to the control unit 70. When the latch member 10 is further rotated, the latch member 10 is detected by the second position switch 60b, and the second position switch 60b is turned on. When the second position switch 60b is turned on, it outputs a signal to the control unit 70.

When both of the pair of position switches 60a and 60b are turned on, the engagement between the latch member 10 and the striker 20 is completed as shown in FIG. That is, the pair of position switches 60a and 60b both turn on to detect the engagement complete position B of the latch member 10.

As shown in FIG. 6, the control unit 70 determines whether or not both position switches 60a and 60b are ON based on the output signals from both position switches 60a and 60b (step S08). When the determination in step S08 is "NO", that is, when both position switches 60a and 60b are not ON, the closer motor mechanism 50 continues to operate. When the determination in step S08 is "YES", that is, when both position switches 60a and 60b are ON, the control unit 70 outputs a control signal to the closer motor mechanism 50. Based on the control signal from the control unit 70, the closer motor mechanism 50 is stopped (step S09), and the latch member 10 is stopped from engaging operation (step S10).
At this time, the engagement between the latch member 10 and the striker 20 is completed. That is, the latch member 10 is at the engagement completion position B. The door 3 is completely pulled into the opening 2 by the engagement between the latch member 10 and the striker 20, and the door 3 is in a fully closed state (step S11).
This completes the closing process of the door 3.

Next, the opening process will be described.
When the determination in step S01 is "NO", that is, when the door 3 is not in the open state, the latch member 10 is engaged with the striker 20 and is in the engagement completion position B as shown in FIG. That is, the door 3 is in a fully closed state in which it is completely pulled into the opening 2. When the determination of "NO" is made in step S01, the occupant opens the door 3 by the operation switch 80 (step S12).
When the door 3 is opened by the operation switch 80, the control unit 70 outputs a control signal to the closer motor mechanism 50. The closer motor mechanism 50 is operated based on the control signal from the control unit 70 (step S13).

As shown in FIG. 4, the closer motor mechanism 50 operates so as to disengage (detach) the latch member 10 from the striker 20. The latch member 10 rotates in a direction opposite to the rotation direction in the closing process described above.
When the latch member 10 starts to rotate, the second position switch 60b of the position switches 60a and 60b does not detect the latch member 10, and the second position switch 60b is turned off. When the second position switch 60b is turned off, the second position switch 60b outputs a signal to the control unit 70. When the latch member 10 is further rotated, the latch member 10 is not detected by the first position switch 60a, and the first position switch 60a is turned off. When the first position switch 60a is turned off, the first position switch 60a outputs a signal to the control unit 70.
The control unit 70 determines whether or not both position switches 60a and 60b are OFF based on the output signals from both position switches 60a and 60b (step S14). When the determination in step S14 is "NO", that is, when both position switches 60a and 60b are not OFF, the closer motor mechanism 50 continues to operate. When the determination in step S14 is "YES", that is, when both position switches 60a and 60b are OFF, the control unit 70 uses the closer motor mechanism 50 based on the output signals from both position switches 60a and 60b. Outputs a control signal to. The closer motor mechanism 50 is stopped based on the control signal from the control unit 70 (step S15). The latch member 10 stops the disengagement operation (step S16).

At this time, as shown in FIG. 3, the latch member 10 is completely disengaged from the striker 20. When the engagement between the latch member 10 and the striker 20 is completely released, the control unit 70 outputs a control signal to the spindle motor main body 41. Based on the control signal of the control unit 70, the spindle motor main body 41 is operated (step S17), and the door 3 starts the opening operation (step S18).
After that, as shown in FIG. 2, the striker 20 is separated from the recess 3a, and the door 3 is fully opened (step S19). When the door 3 is fully opened, the spindle motor sensor 42 outputs a signal to the control unit 70. The control unit 70 recognizes the fully open state of the door 3 based on the detection result of the spindle motor sensor 42.
When the control unit 70 recognizes the fully open state of the door 3, it outputs a control signal to the spindle motor main body 41. The spindle motor main body 41 is stopped based on the control signal from the control 70. As a result, the striker 20 is stopped. That is, the door 3 stops the opening operation.
This completes the opening process of the door 3.

As described above, in the present embodiment, the locking device 4 detects the latch member 10 provided in the door 3, the striker 20 provided in the opening 2 of the vehicle body 1, and the engaged position A of the striker 20. It includes a sensor 30 having a current sensing sensor 32, and a closer motor mechanism 50 that controls an engagement operation between the latch member 10 and the striker 20.
As a result, the lock device 4 can be manufactured with a simple structure. Therefore, the number of parts of the lock device can be reduced. Further, as the number of parts is reduced, the manufacturing cost (material cost, labor cost, etc.) of the lock device 4 can be reduced.

The lock device 4 controls the opening / closing operation of the door 3 and stops the closing operation of the door 3 when the engaged position A of the striker 20 is detected, and the spindle motor mechanism 40 at the engaged position A. It includes a control unit 70 that operates the closer motor mechanism 50 when the door 3 is stopped.
As a result, the closing operation of the door 3 and the engaging operation of the latch member 10 can be interlocked with each other by a simple mechanism. Therefore, the number of parts of the lock device 4 can be reduced.

The lock device 4 stops the closer motor mechanism 50 when the position switches 60a and 60b for detecting the engagement complete position B of the latch member 10 and the position switches 60a and 60b detect the engagement complete position B of the latch member 10. It is provided with a control unit 70 for causing the operation.
As a result, with a simple structure, when the latch member 10 is arranged at the engagement completion position B, the engagement operation of the latch member 10 can be automatically stopped. Therefore, with a simple configuration, it is possible to prevent an extra force from being applied when the latch member 10 engages with the striker 20. Therefore, with a simple configuration, it is possible to easily prevent members such as the latch member 10 and the striker 20 from being damaged during the engaging operation.

The striker 20 has conductivity. The sensor 30 includes a pair of magnets 31 arranged so that the striker 20 passes between them, and a current sensing sensor 32 that detects a magnetic field current I generated by the striker 20 passing between the pair of magnets 31. Have.
As a result, the engaged position A of the striker 20 can be detected by sensing the magnetic field current I that flows when the striker 20 passes between the pair of magnets 31. Therefore, the striker 20 at the engaged position A can be detected by using a simple mechanism including a conductive annular striker 20 and a pair of magnets 31.

The striker 20 is an annular member.
As a result, the magnetic field current I easily flows through the striker 20. Therefore, the current sensing sensor 32 can more easily detect the engaged position A of the striker 20.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited to these embodiments. Configurations can be added, omitted, replaced, and other modifications without departing from the spirit of the present invention. The present invention is not limited by the above description, but only by the appended claims.

In the present embodiment, the latch member 10 is provided in the recess 3a of the door 3 and the striker 20 is provided in the opening 2, but the arrangement relationship between the latch member 10 and the striker 20 may be reversed.
In the present embodiment, the sensor 30 that detects the striker 20 has a current sensing sensor 32 that detects the magnetic field current I that flows as the annular striker 20 passes between the magnets 31. Not limited to this. For example, even if the sensor 30 does not have the current sensing sensor 32, the engaged position A of the striker 20 may be detected by another method such as a contact type, a photoelectric type, or a proximity type.
In the present embodiment, the engagement complete position B of the latch member 10 is detected by using the pair of position switches 60a and 60b, but the method of detecting the engagement complete position B is not limited to this. For example, the closer motor mechanism 50 may include a sensor that detects the rotational position of the rotation shaft of the closer motor main body that constitutes the closer motor mechanism 50. In this case, the sensor detects the engagement complete position B of the latch member 10 from the rotation position of the rotation shaft of the closer motor main body.
In the present embodiment, the control unit 70 determines the fully open state of the door 3 based on the detection result of the spindle motor sensor 42, but the spindle motor sensor 42 detects the engaged position A of the striker. May be good. With this configuration, even if the current sensing sensor 32 fails, the spindle motor sensor 42 can detect the engaged position A of the striker, and a so-called fail-safe function can be provided.

In addition, it is possible to replace the constituent elements in the above-described embodiments with well-known constituent elements as appropriate without departing from the spirit of the present invention, and the above-mentioned modifications may be appropriately combined.

1 ... Body, 2 ... Opening, 3 ... Door (switch), 4 ... Locking device, 10 ... Latch member, 20 ... Striker, 30 ... Sensor, 32 ... Current sensing sensor, 31 ... Magnet, 40 ... Spindle motor mechanism , 50 ... closer motor mechanism, 60a ... first position switch (position switch), 60b ... second position switch (position switch), 70 ... control unit, A ... engaged position, B ... engagement complete position, I ... Magnetic field current

Claims (5)

A striker provided on either the vehicle body or an opening / closing body that opens / closes an opening provided in the vehicle body, and
A latch member provided on either one of the vehicle body and the opening / closing body and engaged with and detached from the striker.
A sensor that detects the engaged position of the striker to which the latch member can engage, and
A lock device including a closer motor mechanism that controls an engagement operation of the latch member with the striker based on a detection result of the sensor. In the locking device according to claim 1,
A spindle motor mechanism that controls the opening / closing operation of the opening / closing body and stops the closing operation of the opening / closing body when the sensor detects the engaged position of the striker.
A locking device including a control unit that operates the closer motor mechanism when the opening / closing body is stopped at the engaged position. In the locking device according to claim 2,
A position switch for detecting the engagement completion position of the latch member with the striker is provided.
The control unit is a locking device characterized in that the closer motor mechanism is stopped when the position switch detects the engagement completion position. The striker has conductivity and
The sensor is
A pair of magnets arranged so that the striker passes between them,
The lock device according to any one of claims 1 to 3, further comprising a current sensing sensor that detects a magnetic field current generated by the striker passing between the pair of magnets. The locking device according to claim 4, wherein the striker is an annular member.

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