JP3858596B2 - Door lock operating device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a door lock operating device capable of performing both functions of an unlatch function for releasing a door lock engagement mechanism and a closer function for operating a latch from a half latch state to a full latch state by a single motor. In particular, the present invention relates to a door lock operating device provided with a dedicated output shaft and output cam for each of the unlatch function and the closer function.
[0002]
[Prior art]
Conventionally, in Japanese Patent Application Laid-Open No. 10-159212, from the half latch state (half door state) to the fully latched state (door closed state), the latching mechanism of the latch and ratchet is released by moving the door lock ratchet. A vehicle door lock operating device (conventional technology) including an actuator capable of performing both functions of a closer function of moving a latch to engage a latch and a ratchet with a single motor is shown.
[0003]
In the actuator of the vehicle door lock operating device, the reduction gear device is composed of two worm gears, and one output cam is fixed to one output shaft. Then, by rotating one motor and rotating one output shaft and output cam to the right from the neutral point, the ratchet of the door lock is moved to perform an unlatching operation. In addition, by rotating the motor in the reverse direction (reversing the rotation direction of the motor with respect to the rotation direction during unlatching operation), rotating the output shaft and output cam counterclockwise from the neutral point moves the door lock latch and operates the closer. Let
[0004]
[Problems to be solved by the invention]
However, in the conventional vehicle door lock operating device, one output shaft of the actuator rotates to the right when the unlatching operation is performed, and rotates to the left when the closer operation is performed. Therefore, the rotation angle of the output cam is as small as 180 ° or less. Therefore, the reduction ratio at the output cam becomes small. As a result, in order to obtain the required torque for closer operation, it is necessary to increase the reduction gear ratio of the reduction gear device, and the shape of the reduction gear is increased. Therefore, the physique of the actuator of the vehicle door lock operating device is large, and the cost is increased. The problem has arisen. Further, even in the case of only the unlatching function with a small required torque, the same reduction gear device as that for the closer operation is required, resulting in a problem of cost increase.
[0005]
Here, in Japanese Patent Laid-Open No. 10-266668, a latch switch for detecting a half-latch state (half-door state) and a full-latch state (door-closed state) of a latch of a door lock includes an actuator with a built-in motor. A vehicle door lock operating device attached to the outside is shown. For this reason, it is necessary to make the latch switch waterproof. Further, since a wire harness dedicated to the latch switch and a clamp of the wire harness are required, there is a problem that the size of the vehicle door lock operating device is large and the cost is increased.
[0006]
OBJECT OF THE INVENTION
An object of the present invention is to reduce the size of the door lock operating device and to reduce the product cost. Further, in the case of only the unlatching function, a speed reduction gear device for closing operation is not required, and the object is to further reduce the product cost.
[0007]
[Means for Solving the Problems]
  According to the first aspect of the present invention, when one motor rotates in the forward direction, for example, the first reduction gear device rotates, the second reduction gear device further rotates, and then the first output cam In response to the rotation output of the first reduction gear device or the second reduction gear device, the rotation device rotates in the forward rotation direction. When the rotation of the first output cam in the forward rotation direction is transmitted to the first output shaft, the first output shaft is locked to the door lock.The ratchetMove to move to unlatching (unlatching function).At the time of this unlatching operation, even if the second output cam rotates in the forward rotation direction, the second output shaft is swung with respect to the second output cam, so that the closer operation by the second output shaft becomes inoperative.On the other hand, when one motor rotates in the reverse direction, for example, the first reduction gear device rotates, the second reduction gear device further rotates, and then the second output cam becomes the second reduction gear device or the first reduction gear device. Receiving the rotation output of the gear device, it rotates in the reverse direction. When the rotation of the second output cam in the reverse direction is transmitted to the second output shaft, the second output shaft is locked to the door.LatchMove the to activate the closer (closer function).At the time of the closer operation, even if the first output cam rotates in the reverse direction, the first output shaft is swung with respect to the first output cam, so that the unlatching operation by the first output shaft becomes inoperative.
[0008]
Accordingly, the first output cam and the first output shaft for unlatching the door lock and the second output cam and the second output shaft for closing the door lock are configured separately, thereby providing the second output. Since the rotation angle of the cam can be increased, that is, the reduction ratio of the second output cam can be increased, the reduction ratio of the second reduction gear device can be reduced. Thereby, since the physique of a door lock operation device can be made small, product cost can be made cheap.
[0009]
According to the second aspect of the present invention, the rotational speed of the motor is decelerated at a predetermined first reduction ratio by the meshing of the motor pinion gear and the first reduction gear constituting the first reduction gear device. Further, the rotational speed of the first reduction gear is reduced at a predetermined second reduction ratio by meshing of the intermediate pinion gear and the second reduction gear that constitute the second reduction gear device. As a result, the rotation angle of the second output cam can be increased, that is, the reduction ratio of the second output cam can be increased, so that the reduction ratio of the second reduction gear device can be reduced.
[0010]
According to the third aspect of the present invention, when one motor rotates in the forward direction, for example, the first output cam integrally provided on the end face of the first reduction gear rotates in the forward direction. The first output shaft or the first operating lever connected to the first output shaft is moved in the unlatching direction. On the other hand, when one motor rotates in the reverse rotation direction, for example, the second output cam integrally provided on the end face of the second reduction gear rotates in the reverse rotation direction. The second actuating lever connected to is moved in the closer direction.
[0011]
According to the fourth aspect of the present invention, when the unlatching operation is finished, the first output lever fixed to the first output shaft and moving the ratchet of the door lock is neutralized from the unlatched position by the first neutral point returning means. Return to position. On the other hand, when the closer operation is finished, the second output lever fixed to the second output shaft and moving the door lock latch is returned from the closer position to the neutral position by the second neutral point returning means.
[0012]
According to the fifth aspect of the present invention, when the first output cam rotates in the forward rotation direction by providing the first output lever with the first engagement portion that engages with the first operation lever only during the unlatch operation. Only the first operating lever and the first output lever are engaged by the first engaging portion, and the first output lever is rotated by interlocking with the first operating lever, and the door lock ratchet is moved (unlatched). function). On the other hand, when the first output cam rotates in the reverse direction, the engagement state between the first operating lever and the first output lever is released, and the first output lever rotates in conjunction with the first operating lever. There is nothing. Thus, the door lock ratchet is not moved by the first output lever.
[0013]
According to the sixth aspect of the present invention, when one motor rotates in the forward direction, for example, the first reduction gear device rotates, the second reduction gear device rotates, and then the first output member In response to the rotation output of the first reduction gear device or the second reduction gear device, the rotation device rotates in the forward rotation direction. When the forward rotation of the first output member is transmitted to the first output shaft, the first output shaft moves the door lock to perform an unlatching operation (unlatching function). On the other hand, when one motor rotates in the reverse direction, for example, the first reduction gear device rotates, the second reduction gear device further rotates, and then the second output member becomes the second reduction gear device or the first reduction gear device. Receiving the rotation output of the gear device, it rotates in the reverse direction. When the rotation of the second output member in the reverse direction is transmitted to the second output shaft, the second output shaft moves the door lock to perform the closer operation (closer function).
[0014]
Therefore, since the same effect as that of the first aspect of the invention can be obtained, the reduction ratio of the second reduction gear device can be reduced. Thereby, since the physique of a door lock operation device can be made small, product cost can be made cheap. In addition, since the first output shaft for unlatching the door lock and the second output shaft for closing the door lock are configured separately, the size of the door lock operating device can be reduced. Product cost can be reduced.
[0015]
  AndThe rotational speed of the motor is reduced at a predetermined first reduction ratio by the meshing of the motor pinion gear and the first reduction gear constituting the first reduction gear device. Further, the rotational speed of the first reduction gear is reduced at a predetermined second reduction ratio by meshing of the intermediate pinion gear and the second reduction gear that constitute the second reduction gear device. As a result, the rotation angle of the second output cam can be increased, that is, the reduction ratio of the second output cam can be increased, so that the reduction ratio of the second reduction gear device can be reduced.
[0016]
  AndThe first output member is a leaf spring that is integrally provided on the end face of the second reduction gear, and that drives the first output shaft or the first operating lever connected to the first output shaft in the unlatching direction. It is characterized by that. The second output member is integrally provided on the end face of the second reduction gear, and a closer cam for driving the second output shaft or the second operating lever connected to the second output shaft in the closer direction. It is characterized by being.
[0017]
  According to the invention of claim 7,When the motor is energized in the reverse direction, the rotation output of the motor is transmitted to the second reduction gear via the motor pinion gear, the first reduction gear, and the intermediate pinion gear, and the second rotary body is rotated in the reverse rotation direction around the central axis. Rotate. Then, when the second rotating body makes one round in the reverse rotation direction, the second rotating body returns to the neutral point.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
[Configuration of the first embodiment]
DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described based on examples with reference to the drawings. FIGS. 1 to 5 show a first embodiment of the present invention. FIGS. 1 and 2 show the structure of a closer and unlatch actuator. FIGS. 3 and 4 show a door lock control circuit. FIG.
[0019]
The door lock operating device for a vehicle such as an automobile according to the present embodiment includes a door lock 1 that keeps a closed door of a vehicle such as an automobile, a closer & unlatching actuator 2 that performs both an unlatch function and a closer function, and the closer & And a door lock control circuit 5 for controlling energization and deenergization of one motor 4 built in the unlatch actuator 2.
[0020]
The door lock 1 has a meshing mechanism that engages with and disengages from a striker (not shown) fixed to a door receiver of a vehicle body of the vehicle. When closing an open door, the door lock 1 is half-latched from the door open state. When the door is closed through the state or the fully latched state and the closed door is opened, the door is opened from the door closed state through the unlatched state. The engagement mechanism of the door lock 1 is a half latch state in which the striker is detained when the door is in a half door state (half lock: the door is not completely closed), and a full latch state in which the striker is detained when the door is closed ( A latch (not shown) that can form either a fully-locked state (with the door fully closed) or an unlatched state (with the door open) that can release the striker. ) And a ratchet (not shown) that engages and disengages with the latch.
[0021]
The latch is provided on an attachment stay for attaching the meshing mechanism of the door lock 1 to the door so as to be rotatable about a support shaft for latching. This latch has a substantially U-shaped fitting groove (U-shaped groove) that can receive a striker, and a half that engages with an engagement claw of a ratchet when the vehicle door is in a half-door state that is not fully tightened. Latch engagement claw (first engagement portion), full latch engagement claw (second engagement portion) that engages with the ratchet engagement claw when in the fully latched state and the door closed state, and the closer and unlatch actuator 2 Receiving lever (not shown) for receiving the output of the closer output lever 26. The latch is urged by a latch spring (not shown) in an initial position (a position where the fitting groove faces a direction in which the striker can be received when the door is open).
[0022]
The ratchet is provided on the mounting stay so as to be rotatable about a ratchet support shaft. The ratchet includes a latch half latch latch nail, a full latch latch nail, and a latch lever (not shown) that receives the output of the unlatch output lever 16 of the closer and unlatch actuator 2. have. The ratchet is urged in a direction in which the engaging claw comes into contact with the latch by a ratchet spring (not shown). Further, the ratchet is configured such that further rotation is restricted by a stopper (not shown) when the ratchet rotates by a predetermined rotation angle in the unlatching direction.
[0023]
The closer and unlatch actuator 2 includes an actuator case 3, a motor 4, first and second reduction gear devices (described later), first and second output cams 13 and 23, and first and second output shafts 15 and 25. ing. The actuator case 3 is integrally formed into a predetermined shape by an electrically insulating resin material, and houses the components of the closer and unlatch actuator 2.
[0024]
The actuator case 3 includes a container-shaped case main body 35 made of a resin material and a cover 36 made of a resin material for liquid-tightly closing the opening of the case main body 35. It has a waterproof structure that can prevent water from entering. A pair of motor terminals (motor energization circuits) 37 for electrically connecting the motor 4 and the door lock control circuit 5 are integrally formed on the bottom wall surface or the top wall surface of the actuator case 3. .
[0025]
A connector shell 38 is integrally formed at the end of the case main body 35 of the actuator case 3 so as to be liquid-tightly fitted with a connector (not shown) on the outer conductor side. In the connector shell 38, a pair of connector pins (external connection terminals) 39 are disposed so as to protrude from the side wall portion of the case body 35. Here, the pair of motor terminals 37 are motor lead frames configured integrally with the pair of connector pins 39.
[0026]
The motor 4 has a shaft (rotating shaft) 9 that can rotate in the forward or reverse direction. The motor 4 receives a control signal from the door lock control circuit 5 during the unlatch operation, and generates a rotation output in the forward rotation direction in the first reduction gear device. The motor 4 receives a control signal from the door lock control circuit 5 when the closer is operated, and generates a rotation output in the reverse direction in the first reduction gear device.
[0027]
The first reduction gear device reduces the rotational speed of the motor 4 to a predetermined reduction ratio. The motor pinion gear 11 made of a resin material fixed to the outer periphery of the shaft 9 of the motor 4 and the resin meshed with the motor pinion gear 11. The first reduction gear 12 is made of a material. The first reduction gear 12 is rotatably fitted to a central shaft (first shaft) 10 having both ends fixed to the top wall portion and the bottom wall portion of the actuator case 3.
[0028]
The second reduction gear device reduces the rotation speed of the motor 4 to a predetermined reduction ratio and reduces the rotation speed of the first reduction gear 12. The second reduction gear apparatus is integrally provided on one end surface of the first reduction gear 12. An intermediate pinion gear 21 made of a resin material, a second reduction gear 22 made of a resin material meshing with the intermediate pinion gear 21, and the like. The second reduction gear 22 is rotatably fitted to a central shaft (second shaft) 20 having both ends fixed to the top wall portion and the bottom wall portion of the actuator case 3.
[0029]
The first output cam 13 is integrally formed on the other end surface of the first reduction gear 12. The first output cam 13 has a convex shape capable of moving the first operating lever 14 connected to the first output shaft 15 in the unlatching direction when rotated in the forward rotation direction. Specifically, the cam surface of the first output cam 13 is provided with an inner wall surface (cam groove) having a curvature smoothly connected to the inclined surface and an end portion of the inner wall surface at a substantially acute angle, and is unlatched. A side wall surface (cam wall) is sometimes provided to press the first operating lever 14 in the unlatching direction.
[0030]
The second output cam 23 is integrally formed on one end surface of the second reduction gear 22. The second output cam 23 has a convex shape that can move the second operating lever 24 connected to the second output shaft 25 in the closer direction. Specifically, the cam surface of the second output cam 23 has a side wall surface (cam wall) that contacts the second operating lever 24 in the neutral position, and an outer wall surface (moving the second operating lever 24 in the closer direction when the closer is operated). Cam wall), and an inner wall surface (cam groove) for causing the second operating lever 24 to swing idle during unlatching operation. The outer wall surface has a curvature surface that gradually increases in outer diameter around the second shaft 20.
[0031]
The first output shaft 15 has a first operating lever 14 made of a resin material that engages with the first output cam 13, one end portion is rotatably supported by the bearing portion of the actuator case 3, and the other end portion is an actuator. Projecting outward from the case 3. A substantially cylindrical first engaging portion (pin portion) 17 that engages with the first output cam 13 is integrally formed at the distal end portion of the first operating lever 14. The lever body of the first operating lever 14 is installed at a height that does not interfere with the first output cam 13. The first operating lever 14 has a small backlash in the rotational direction with respect to the first output shaft 15.
[0032]
The second output shaft 25 has a second operating lever 24 made of a resin material that engages with the second output cam 23, one end projecting outward from the actuator case 3, and the other end being a bearing portion of the actuator case 3. Is supported rotatably. A substantially cylindrical second engaging portion (pin portion) 27 that engages with the second output cam 23 is integrally formed at the distal end portion of the second operating lever 24. The lever body of the second operating lever 24 is installed at a height that does not interfere with the second output cam 23.
[0033]
The unlatch output lever 16 corresponds to the first output lever of the present invention, and is integrally formed in a predetermined shape with a resin material or the like, and is fixed to the outer periphery of the first output shaft 15. A claw-like portion (corresponding to the first engaging portion of the present invention) 19 that engages with the first operating lever 14 only at the time of unlatching operation is integrally formed on one end surface of the unlatch output lever 16. Since the unlatch output lever 16 is fixed to the outer periphery of the first output shaft 15 outside the actuator case 3, the claw-like portion 19 is provided with an arc-shaped insertion hole (not shown) in the actuator case 3. It extends in a direction parallel to the axial direction of the first output shaft 15 so as to penetrate the hole and engage with the lever main body of the first operating lever 14.
[0034]
A return spring (corresponding to the first neutral point return means of the present invention: not shown) for returning the unlatch output lever 16 from the unlatched position to the neutral position is provided between the unlatch output lever 16 and the actuator case 3. You may make it attach. Further, a spring (not shown) for pressing the first operation lever 14 against the claw-shaped portion 19 may be attached between the unlatch output lever 16 and the first operation lever 14.
[0035]
The closer output lever 26 corresponds to the second output lever of the present invention, and is integrally molded into a predetermined shape from a resin material and fixed to the outer periphery of the second output shaft 25. A return spring (corresponding to the second neutral point returning means of the present invention) 29 for returning the closer output lever 26 from the closer position to the neutral position is attached between the closer output lever 26 and the actuator case 3. May be.
[0036]
The door lock control circuit 5 includes a microcomputer (motor control means) having a CPU, a ROM, and a RAM. The door open switch 31 is manually operated by a passenger, the half latch switch 32 detects a half latch state, the unlatched state, and A switch (unlatch switch: unlatch position detection means, first reduction gear neutral position detection means) 33 for detecting the neutral position of the first reduction gear 12, and the second reduction gear 22 and the second output cam 23 make one round in the closer direction. Based on the ON / OFF signals of various switches such as a switch (closer switch: closer position detecting means, second reduction gear neutral position detecting means) 34 for detecting that the motor has made (one rotation), the motor 4 is rotated in the forward direction or in the reverse direction. Energize in the direction.
[0037]
[Operation of the first embodiment]
Next, the operation of the vehicle door lock operating device of this embodiment will be briefly described with reference to FIGS. Here, FIG. 5 is a view showing the operation of the closer and unlatch actuator.
[0038]
When the passenger opens the door opening switch 31 to open the door, a current flows in the motor energization circuit (a pair of motor terminals) 37 of the motor 4 in the direction shown in FIG. Rotate in the direction. When the rotation output of the motor 4 is transmitted to the first output cam 13 via the motor pinion gear 11 and the first reduction gear 12, and the first output cam 13 rotates in the clockwise rotation direction (forward rotation direction), the first The cam surface of the output cam 13 comes into contact with the first engaging portion 17 of the first operating lever 14.
[0039]
As a result, the first engagement portion 17 is moved outward (radially outward of the first shaft 10) along the cam surface, and the first operating lever 14 rotates counterclockwise in the figure about the first output shaft 15. Rotate in the direction. Since the first actuating lever 14 and the unlatch output lever 16 are engaged by the claw-like portion 19, when the first actuating lever 14 rotates, the unlatch output lever 16 is also illustrated with the first output shaft 15 as the center. Rotate counterclockwise (forward direction). At this time, when the unlatch output lever 16 rotates from the position shown by the solid line to the position shown by the broken line in the figure, further rotation is restricted by the ratchet stopper, so that the unlatch output lever 16 does not move even when the motor 4 is energized.
[0040]
On the other hand, when the first reduction gear 12 rotates in the illustrated rightward rotation direction (forward rotation direction), the second reduction gear 22 rotates in the illustrated leftward rotation direction via the intermediate pinion gear 21. The engaging portion 27 enters the cam groove side of the second output cam 23 and the second operating lever 24 swings idle. Thereby, the rotation output is not transmitted from the second output cam 23 to the second operating lever 24, and the closer output lever 26 biased to the neutral position by the biasing force of the return spring does not move.
[0041]
As a result, the unlatch output lever 16 presses the receiving lever of the ratchet and moves the ratchet in the unlatching direction about the support shaft. As a result, the ratchet engaging claw is disengaged from the full latch engaging claw, whereby the latch biased by the latch spring attempts to return to the initial position, and the door is opened in an unlatched state.
[0042]
At this time, when it is detected that the first reduction gear 12 and the first output cam 13 have rotated to the unlatched position, the switch (movable contact) 33 is connected to the neutral position fixed contact as shown in FIG. Switch from the position to the position to connect to the unlatched position fixed contact. Thereby, a current flows through the motor energization circuit (a pair of motor terminals) 37 of the motor 4 in the direction shown in FIG. 3B, and the motor 4 rotates in the reverse direction.
[0043]
When the rotation output of the motor 4 is transmitted to the first output cam 13 via the motor pinion gear 11 and the first reduction gear 12, and the first output cam 13 rotates in the left rotation direction (reverse rotation direction), the first output The cam surface of the cam 13 presses the first operating lever 14. As a result, the first actuating lever 14 and the unlatch output lever 16 rotate around the first output shaft 15 in the clockwise rotation direction (reverse rotation direction) with the urging force of the spring and return to the neutral position (first neutral position). Point return means). At this time, when it is detected that the first reduction gear 12 and the first output cam 13 are also returned from the unlatched position to the neutral position, the switch (movable contact) 33 is changed from the position connected to the unlatched position fixed contact to the neutral position fixed contact. Switch to the connection position. Thereby, the energization to the motor 4 is completed.
[0044]
When the occupant attempts to close the door from the door open state, the striker enters the fitting groove of the latch and the latch rotates, so that the latch latch engaging claw engages with the ratchet engaging claw. A half-door state (a half-latch state, a state where the door is not completely closed) is obtained. In this half latch state, when the half latch switch 32 is turned on, a current flows in the motor energization circuit (a pair of motor terminals) 37 of the motor 4 in the direction shown in FIG. It rotates in the reverse direction.
[0045]
When the rotation output of the motor 4 is transmitted to the intermediate pinion gear 21 via the motor pinion gear 11 and the first reduction gear 12, the second reduction gear 22 and the second output cam 23 rotate in the right rotation direction (reverse rotation direction) in the figure. The cam surface of the second output cam 23 comes into contact with the second engaging portion 27 of the second operating lever 24. As a result, the second engagement portion 27 is moved outward (radially outward of the second shaft 20) along the cam surface, and the second operating lever 24 rotates rightward in the figure about the second output shaft 25. Rotate in the direction. Since the second operation lever 24 and the closer output lever 26 are fixed to the outer periphery of the second output shaft 25, when the second operation lever 24 rotates, the closer output lever 26 also moves as shown in FIG. The second output shaft 25 is rotated in the clockwise rotation direction (reverse rotation direction) around the second output shaft 25.
[0046]
On the other hand, when the second reduction gear 22 rotates in the right rotation direction, the first reduction gear 12 rotates in the left rotation direction, but the first engagement portion 17 of the first operating lever 14 Along the cam surface of the output cam 13, it enters the radially inward side of the first shaft 10, and the first operating lever 14 swings idle. Thereby, the rotation output is not transmitted from the first output cam 13 to the first operating lever 14, and the unlatch output lever 16 biased to the neutral position by the biasing force of the return spring does not move. As a result, the closer output lever 26 presses the receiving lever of the latch and moves the latch in the closer direction about the support shaft. As a result, the ratchet engaging claw is disengaged from the latch half-latching engaging claw and engaged with the full-latching engaging claw, whereby the door is fully closed.
[0047]
At this time, if the second reduction gear 22 and the second output cam 23 make one rotation to the original neutral position by continuing energization of the motor 4, as shown in FIG. 4B, a switch (movable contact) The position 34 is switched from the position connected to the neutral position fixed contact to the position connected to the closer position fixed contact. Thereby, the energization to the motor 4 is completed. Note that the switch 34 switches from a position connected to the closer position fixed contact to a position connected to the neutral position fixed contact after the energization of the motor 4 is completed.
[0048]
Here, when the second output cam 23 makes one round from the neutral position, the second engagement portion 27 of the second operation lever 24 enters the cam groove of the second output cam 23 and enters the second shaft 20 in the radial direction. Return to the neutral position by moving to the side (position shown in FIG. 2). The second reduction gear 22 and the second output cam 23 also return to the neutral position by making one round (second neutral point return means).
[0049]
[Effects of the first embodiment]
As described above, the vehicle door lock operating device according to the present embodiment has the first and second dedicated functions for the unlatching function for unlatching the ratchet of the door lock 1 and the closing function for closing the door lock 1 latch. A closer and unlatch actuator 2 provided with two output cams 13 and 23 and first and second output shafts 15 and 25 is provided. That is, by configuring the first output cam 13 and the first output shaft 15 for unlatching operation separately from the second output cam 23 and the second output shaft 25 for closing operation, the second output for closing operation is provided. The rotation angle of the cam 23 can be increased, that is, the reduction ratio of the second output cam 23 can be increased.
[0050]
Accordingly, the reduction ratio of the second reduction gear device can be reduced, so that the size of the vehicle door lock operation device can be reduced, and the product cost of the vehicle door lock operation device can be reduced. Can do. Further, when the closer & unlatching actuator 2 is changed to an unlatching actuator having only an unlatching function, the second reduction gear device for closing the operation becomes unnecessary, and the product cost of the vehicle door lock operating device is reduced. Can do.
[0051]
[Configuration of Second Embodiment]
FIGS. 6 to 22 show a second embodiment of the present invention. FIGS. 6 and 7 show the structure of a closer and unlatch actuator, and FIG. 8 shows a motor terminal and a switch terminal. FIG. 9 is a diagram showing the internal wiring of the closer and unlatch actuator.
[0052]
The door lock operating device for a vehicle such as an automobile according to the present embodiment includes a door lock 1 that keeps a door of a vehicle such as an automobile closed, a closer and unlatch actuator 2 that performs both an unlatch function and a closer function, and the closer & A door lock control circuit (not shown) for controlling energization and deenergization of one motor 4 built in the unlatch actuator 2 is provided.
[0053]
The engagement mechanism of the door lock 1 releases the striker in a half latch state in which the striker S (see FIGS. 13 and 22) is held in the half door state, a full latch state in which the striker is held in the door closed state, and the striker. This is an engaging / disengaging mechanism including a latch 41 capable of forming any one of the unlatching states that can be engaged, and a ratchet 42 that is detachably engaged with the latch 41.
[0054]
The latch 41 is provided in the door lock case 43 so as to be rotatable about a latch support shaft 41a. The latch 41 engages with a U-shaped fitting groove (U-shaped groove) 44 capable of receiving a striker, and an engagement claw 48 of the ratchet 42 when the vehicle door is in a half-door state where the door is not fully tightened. A half latch engaging claw (first engaging portion) 45, a full latch engaging claw (second engaging portion) 46 that engages with the engaging claw 48 of the ratchet 42 in the full latch state and the door closed state, And a receive lever 47 that receives the output of the closer output lever 54 of the closer & unlatch actuator 2. The latch 41 is urged by a latch spring (not shown) in an initial position (a position in which the fitting groove 44 faces a direction in which the striker can be received when the door is open).
[0055]
The ratchet 42 is provided in the door lock case 43 so as to be rotatable about a ratchet support shaft 42a. The ratchet 42 includes a receiving latch 49 that receives the output of the latching claw 45 of the latch 41, the engaging claw 48 that engages the full-latching engagement claw 46, and the opener output lever 53 of the closer and unlatch actuator 2. Have. The ratchet 42 is urged in a direction in which the engaging claw 48 abuts on the latch 41 by a ratchet spring (not shown). Further, the ratchet 42 is configured such that when the ratchet 42 is rotated by a predetermined rotation angle in the unlatching direction, further rotation is restricted by a stopper 43 a formed integrally with the door lock case 43.
[0056]
The closer and unlatch actuator 2 includes an actuator case 3, a motor 4, a terminal unit, first and second reduction gear devices, first and second output shafts 15 and 25, an opener spring (corresponding to a first output member of the present invention). ) 51, a closer cam (corresponding to the second output member of the present invention) 52, an opener output lever 53, a closer output lever 54, and the like.
[0057]
The actuator case 3 includes a case main body 35 integrally formed in a predetermined shape with a resin material, a cover 36 for integrally closing the opening portion of the case main body 35, and the like. Yes. A connector shell 38 is integrally formed at the end of the case body 35. The first reduction gear device includes a first shaft 10, a motor pinion gear 11 made of a resin material, a first reduction gear 12 made of a resin material, and the like, as in the first embodiment. Similarly to the first embodiment, the second reduction gear device includes a second shaft 20, an intermediate pinion gear 21 made of a metal material, a second reduction gear 22 made of an iron-based sintered material, and the like.
[0058]
One end of the first shaft 10 is press-fitted and held in a concave portion formed on the top wall portion of the cover 36 of the actuator case 3, and the other end portion is a concave shape formed on the bottom wall portion of the case body 35 of the actuator case 3. It is press-fitted and held in the part. The first shaft 10 is disposed so as to penetrate the axial center portion of the first rotating body 18 having the first reduction gear 12 formed on the outer peripheral portion in the plate thickness direction. In addition, the cam is not formed in the both end surfaces (one end surface and the other end surface) of the 1st rotary body 18 of a present Example.
[0059]
As shown in FIG. 10, the second shaft 20 is rotatably supported by a bearing 90 whose one end is press-fitted into a concave portion formed on the top wall of the cover 36 of the actuator case 3, and the other end is The actuator case 3 is rotatably supported by a bearing 91 press-fitted into a concave portion formed in the bottom wall portion of the case body 35 of the actuator case 3. The second shaft 20 is integrally formed with the axial center portion of the second rotating body 28 in which the second reduction gear 22 is formed on the outer peripheral portion.
[0060]
A closer cam 52 is integrally formed on one end surface of the second rotating body 28, and a ring cam 66 having one inner peripheral projection 66 a is integrally formed on the other end surface of the second rotating body 28. The second rotating body 28 is formed with a through-hole 64 penetrating in the plate thickness direction so as to have a substantially one-letter shape. The closer cam 52 has a convex shape that can move the second operating lever 24 connected to the second output shaft 25 in the closer direction.
[0061]
The first output shaft 15 includes a first operating lever 14 engaged with the opener spring 51, an opener output lever 53 for driving the ratchet 42 in the unlatching direction, and a neutral point switch spring (hereinafter abbreviated as a neutral point switch) 6. A neutral point switch sub-lever 61 is held. One end of the first output shaft 15 is rotatably supported by a bearing (not shown) attached to the top wall of the cover 36 of the actuator case 3, and the other end of the first output shaft 15 is the case main body 35 of the actuator case 3. Projects outward from the bottom wall.
[0062]
As shown in FIGS. 11 and 12, the second output shaft 25 drives the second operating lever 24 and the latch 41 that engage with the closer cam 52 integrally formed on one end surface of the second rotating body 28 in the closer direction. A closer output lever 54 and a latch switch sub-lever 62. One end of the second output shaft 25 is rotatably supported by a bearing portion formed on the top wall portion of the cover 36 of the actuator case 3, and the other end portion is supported by the bottom wall portion of the case body 35 of the actuator case 3. Projects outward. Reference numeral 92 denotes a bearing.
[0063]
The opener spring 51 is a plate spring. One end portion of the opener spring 51 is fixed to the other end surface of the second rotating body 28 by a screw 63, and the other end portion is bent into a substantially L shape to form a through hole 64 formed in the second rotating body 28. It is inserted. The other end portion of the opener spring 51 is configured to be detachably contacted with a first engagement portion (pin portion) 17 integrally formed with the distal end portion of the first operating lever 14.
[0064]
The first operating lever 14 is press-fitted and fixed to the outer periphery of the first output shaft 15. A first engaging portion (pin portion) 17 is integrally formed at the tip of the first operating lever 14. The second operating lever 24 is press-fitted and fixed to the outer periphery of the second output shaft 25. In addition, a pin hole that accommodates a bearing 93 is formed in the distal end portion of the second operating lever 24 in the thickness direction. A second engagement portion (pin portion) 27 is attached in the pin hole using a circlip 60. A latch switch spring (hereinafter abbreviated as a latch switch) 7 is fixed on the lever portion of the second operating lever 24 by ultrasonic caulking.
[0065]
The opener output lever 53 is integrally formed in a predetermined shape with a resin material, and is press-fitted and fixed to the outer periphery of the first output shaft 15. The opener output lever 53 engages with the receive lever 49 of the ratchet 42 to move the ratchet 42 in the unlatching direction about the ratchet support shaft 42a. When the opener output lever 53 is rotated by a predetermined rotation angle in the initial position direction, the opener output lever 53 is further rotated by the stopper 70b of the concave portion 70 formed on the outer wall surface of the bottom wall portion of the case body 35 of the actuator case 3. It is configured to be regulated.
[0066]
The closer output lever 54 is integrally formed in a predetermined shape with a resin material, and is press-fitted and fixed to the outer periphery of the second output shaft 25. The closer output lever 54 engages with the receive lever 47 of the latch 41 to move the latch 41 in the closer direction around the latch support shaft 41a. A return spring 65 for returning the closer output lever 54 from the closer position to the neutral position may be attached. One end of the return spring 65 is held by the actuator case 3, and the other end is held by the closer output lever 54. The return spring 65 urges the closer output lever 54 so as to contact the latch wall 75 side of the latch switch sub lever 62.
[0067]
The neutral point switch sub-lever 61 is integrally formed of a resin material into a predetermined shape, and is fitted to the outer periphery of the first output shaft 15 so as to be relatively rotatable. Further, on one end side of the neutral point switch sub-lever 61, a cylindrical engaging portion (pin portion) 67 that engages with a ring cam 66 integrally formed on the other end surface of the second rotating body 28 is integrally formed. . The neutral point switch 6 is fixed to the other end of the neutral point switch sub-lever 61 by ultrasonic caulking. A return spring 69 for returning the neutral point switch sub-lever 61 from the unlatched position to the neutral position is attached. One end of the return spring 69 is held by the first operating lever 14, and the other end is held by the neutral point switch sub-lever 61.
[0068]
The latch switch sub-lever 62 is disposed between the outer wall surface of the recessed portion 71 formed on the outer wall surface of the bottom wall portion of the case body 35 of the actuator case 3 and one end surface of the closer output lever 54, and the second output. The second output shaft 25 is fitted on the outer periphery of the shaft 25 so as to be capable of relative rotation. The latch switch sub-lever 62 is configured such that when the latch switch sub-lever 62 rotates by a predetermined rotation angle in the closer direction, further rotation is restricted by a stopper 43b formed integrally with the door lock case 43.
[0069]
Further, when the latch switch sub lever 62 is rotated by a predetermined rotation angle in the unlatching direction, the latch switch sub lever 62 is further rotated by the stopper 71a of the concave portion 71 formed on the outer wall surface of the bottom wall portion of the case body 35 of the actuator case 3. It is configured to be regulated. The latch switch sub lever 62 is integrally formed with a convex locking wall 73 that is locked to the left side wall 72 of the closer output lever 54 when the closer output lever 54 rotates by a predetermined rotation angle in the closer direction. A convex locking wall 75 that is locked to the right side wall 74 of the closer output lever 54 when the closer output lever 54 rotates by a predetermined rotation angle in the unlatching direction is integrally formed.
[0070]
The terminal unit is configured in an actuator case 3 having a waterproof structure. Specifically, as shown in FIGS. 8 and 9, the terminal unit is printed on the bottom wall surface of the bottom wall portion of the case body 35 of the actuator case 3 to electrically connect the motor 4 and the door lock control circuit. A pair of motor terminals (motor energization circuit, external connection terminal) 37 for electrical connection, and switch terminals 55-58 (externally) for electrically connecting the switches 6, 7 and the door lock control circuit Connecting terminal) and the like.
[0071]
Here, the pair of motor terminals 37 are motor lead frames (conductors) integrally formed with a pair of connector pins (not shown). The switch terminal 55 is a neutral point detection lead frame (conductor, fixed contact) integrally formed with a pair of connector pins (not shown). The switch terminal 56 is a ground lead frame (conductor, fixed contact) integrally formed with a pair of connector pins (not shown). The switch terminal 57 is a door open state detection lead frame (conductor, fixed contact) integrally formed with a pair of connector pins (not shown).
[0072]
The switch terminal 58 is a half-door state detection lead frame (conductor, fixed contact) integrally formed with a pair of connector pins (not shown). The switch terminals 55 and 56 have leaf spring-like neutral point switches (movable contacts, second reduction gear neutral position detecting means) for detecting that the closer cam 52 makes one turn (one rotation) in the closer direction. 6 contacts selectively. Further, the switch terminals 56 to 58 include leaf spring-like latch switches (movable contacts, latch state detecting means, door open state detecting means, half-door state detecting means) for detecting the operating state of the latch 41 of the door lock 1. (Means) 7 contacts selectively.
[0073]
As in the first embodiment, the door lock control circuit of the present embodiment is composed of a microcomputer having a CPU, a ROM, and a RAM. A door opening switch (unlatch switch) manually operated by the occupant, a neutral point switch 6 and Various switches such as a neutral point detection switch (second reduction gear neutral position detecting means) constituted by the switch terminals 55 and 56, a latch state detection switch constituted by the latch switch 7 and the switch terminals 56 to 58, etc. Based on the ON / OFF signal, the motor 4 is energized in the forward direction or the reverse direction via the pair of motor terminals 37.
[0074]
Here, when the two contacts of the neutral point switch 6 are in contact with the switch terminal 56 (when the neutral point is detected), the neutral point detection switch is turned OFF. When the two contacts of the neutral point switch 6 are in contact with the switch terminals 55 and 56, the neutral point detection switch is turned on. Further, when the two contacts of the latch switch 7 are in contact with the switch terminals 56 and 57, the latch state detection switch (door open switch) is turned on, and the two contacts of the latch switch 7 are used for the switch. When in contact with the terminals 56 and 58, the latch state detection switch (half-door switch) is turned on, and in other states, the latch state detection switch is turned off.
[0075]
[Operation of the second embodiment]
Next, the operation of the vehicle door lock operating device according to the present embodiment will be briefly described with reference to FIGS. Here, FIGS. 13 to 22 are views showing the operation of the closer & unlatch actuator and the door lock.
[0076]
13A, 14A, and 14B, the striker S is inserted into the U-shaped groove 44 of the latch 41, and the engaging claw 48 of the ratchet 42 is engaged with the latch 41. The full latch engaging claw 46 is engaged. Further, the receive lever 47 of the latch 41 is locked by a stopper 43b formed integrally with the door lock case 43, and the latch switch sub lever 62 is hooked.
[0077]
Since the latch switch sub-lever 62 is thus hooked, the right side wall 74 of the closer output lever 54 is held by the locking wall 75 of the latch switch sub-lever 62 as shown in FIG. Yes. At this time, as shown in FIG. 14A, a neutral point detection switch constituted by a neutral point switch 6 and switch terminals 55 and 56, and a latch switch 7 and switch terminals 56 to 58 are constituted. Both latch state detection switches are OFF.
[0078]
Next, in the opener (unlatched) operating state, when the occupant turns on the unlatch switch to open the door, a current flows through the motor energization circuit (a pair of motor terminals) 37 of the motor 4 so that the motor 4 is rotated in the forward direction. Rotate. At this time, the motor 4 may be energized for a predetermined time. The rotation output of the motor 4 is transmitted to the opener spring 51 through the motor pinion gear 11, the first reduction gear 12, the intermediate pinion gear 21, and the second reduction gear 22, and the opener spring 51 is illustrated around the second shaft 20. It rotates in the clockwise direction (forward direction).
[0079]
Accordingly, as shown in FIGS. 15A to 15C, the first engagement portion 17 of the first operating lever 14 is pushed by the tip portion of the opener spring 51. For this reason, the 1st action lever 14 rotates in the illustration left rotation direction centering on the 1st output axis 15. Since the first output shaft 15 fixes the first operating lever 14 and the opener output lever 53, when the first operating lever 14 rotates, the opener output lever 53 is also shown on the left with the first output shaft 15 as the center. It rotates in the rotation direction (forward rotation direction).
[0080]
At this time, the engaging portion 67 of the neutral point switch sub-lever 61 is disengaged from the inner circumferential convex portion 66a of the ring cam 66 integrally formed with the other end surface of the second rotating body 28, as shown in FIG. The neutral point switch sub-lever 61 and the neutral point switch 6 are rotated about the first output shaft 15 in the left rotation direction in the drawing by the spring force of the return spring 69. For this reason, as shown in FIG. 15A, when the neutral point switch 6 contacts the switch terminals 55 and 56, the neutral point detection switch is turned ON.
[0081]
As a result, as shown in FIGS. 13B and 16A, the opener output lever 53 presses the receive lever 49 of the ratchet 42, and the ratchet 42 is unlatched around the ratchet support shaft 42a. Move to. As a result, when the engaging claw 48 of the ratchet 42 is disengaged from the engaging claw 46 for the full latch of the latch 41, the latch 41 biased by the latch spring tries to return to the initial position and can open the door. It becomes a state.
[0082]
Next, when the occupant opens the door, the door opens as shown in FIGS. 16 (b) and 17 (a). This is because when the door is opened, the striker comes out of the U-shaped groove 44 of the latch 41, so that the latch 41 is rotated about the latch support shaft 41a in the clockwise direction in the drawing by the spring force of the latch spring. As a result, the receive lever 47 of the latch 41 hooks the closer output lever 54 and moves the closer output lever 54 and the latch switch sub lever 62 around the second output shaft 25 in the counterclockwise direction in the figure.
[0083]
Therefore, as shown in FIGS. 18A and 18B, the second output shaft 25 rotates in the illustrated left rotation direction, so that the second operation lever 24 and the latch switch 7 also rotate in the illustrated left rotation direction. . For this reason, when the latch switch 7 comes into contact with the switch terminals 56 and 57, the latch state detection switch (door open switch) is turned ON. When the latch state detection switch (door open switch) is turned on, the motor 4 is energized in a direction that reverses the rotation direction of the motor 4.
[0084]
Thereby, the rotation output of the motor 4 is transmitted to the opener spring 51 through the motor pinion gear 11, the first reduction gear 12, the intermediate pinion gear 21, and the second reduction gear 22, and the opener spring 51 is centered on the second shaft 20. It rotates in the left rotation direction (reverse rotation direction) in the figure. Then, when the position of the opener spring 51 tries to return to the original position by the spring force of the return spring 69 urging in the direction in which the first engaging portion 17 of the first operating lever 14 abuts against the tip of the opener spring 51. The first operating lever 14 and the first output shaft 15 also rotate in the clockwise direction in the figure.
[0085]
As a result, the opener output lever 53 is separated from the receive lever 49 of the ratchet 42. At this time, since the second rotating body 28 returns to the neutral point, the engaging portion 67 of the neutral point switch sub-lever 61 rides on the inner peripheral convex portion 66a of the ring cam 66, and therefore, as shown in FIG. Thus, when the neutral point switch 6 contacts the switch terminal 56, the neutral point detection switch is turned OFF. Then, when the neutral point detection switch is turned off, the energization of the motor 4 is stopped (OFF). Next, when the occupant closes the door of the automobile strongly, the latch state detection switch (half door switch) cannot be sampled and the motor 4 is not energized in the closer direction. That is, the motor 4 does not operate.
[0086]
When the passenger lightly closes the door of the automobile and enters the half door state shown in FIGS. 17B and 19A, the striker enters the U-shaped groove 44 of the latch 41, and the latch 41 becomes the latch spindle. It rotates in the left rotation direction in the figure around 41a. At this time, the engagement claw 45 for the half latch of the latch 41 and the engagement claw 48 of the ratchet 42 are engaged.
[0087]
Further, when the latch 41 rotates in the counterclockwise direction in the figure, the receive lever 47 of the latch 41 hooks the latch switch sub lever 62 so that the closer output lever 54 and the latch switch sub lever 62 are centered on the second output shaft 25. And move it in the clockwise direction shown in the figure.
[0088]
For this reason, as shown in FIG. 20B, the second output shaft 25 rotates in the clockwise direction in the figure, so that the second operating lever 24 and the latch switch 7 also rotate in the clockwise direction in the figure. For this reason, as shown in FIG. 20A, the object to be contacted by the latch switch 7 is switched to the switch terminals 56 and 58. That is, the latch state detection switch (half door switch) is turned on.
[0089]
When the latch state detection switch (half door switch) is turned on, the motor 4 is energized in the reverse direction. Thereby, the rotation output of the motor 4 is transmitted to the second reduction gear 22 through the motor pinion gear 11, the first reduction gear 12, and the intermediate pinion gear 21, and as shown in FIGS. 21 (a) to (c). The two-rotation body 28 rotates around the second shaft 20 in the illustrated left rotation direction (reverse rotation direction).
[0090]
Here, as shown in FIGS. 21A and 21C, the second engagement portion 27 of the second operating lever 24 is a cam surface of the closer cam 52 that is integrally formed with one end surface of the second rotating body 28. The second rotating body 28 moves outward in the radial direction as the second rotating body 28 rotates while being in contact with. As a result, the second operating lever 24 rotates around the second output shaft 25 in the clockwise direction in the figure.
[0091]
As the second output shaft 25 rotates, the closer output lever 54 rotates around the second output shaft 25 in the clockwise direction while pressing the locking wall 73 of the latch switch sub lever 62 with the left side wall 72. To do. As a result, as shown in FIG. 22A, the closer output lever 54 engages with the receive lever 47 of the latch 41 to move the latch 41 around the latch support shaft 41a in the counterclockwise direction in the figure. For this reason, as shown in FIG. 22B, the engagement claw 48 of the ratchet 42 engages with the full latch engagement claw 46 of the latch 41.
[0092]
When the second rotating body 28 makes one round in the reverse rotation direction, the second rotating body 28 returns to the neutral point. Therefore, the engaging portion 67 of the neutral point switch sub-lever 61 has an inner peripheral convex portion 66a of the ring cam 66. As shown in FIG. 14A, when the neutral point switch 6 comes into contact with the switch terminal 56, the neutral point detection switch is turned off, so that the motor 4 is also turned off.
[0093]
[Effect of the second embodiment]
As described above, the vehicle door lock operating device according to the present embodiment includes the neutral point detection switch including the neutral point switch 6 and the switch terminals 55 and 56, the latch switch 7, and the switch terminals 56 to 58. In the actuator case 3 having a waterproof structure, the waterproof structure of both switches 6 and 7 becomes unnecessary, and the wire harness and the clamp of the wire harness become unnecessary. Thereby, the physique of the vehicle door lock operation device can be reduced in size, and the vehicle door lock operation device can be provided at a low product cost.
[0094]
[Modification]
In the present embodiment, an example in which the present invention is applied to a door lock operating device for a vehicle such as an automobile has been described. However, the present invention is a vehicle that performs both an unlatch function and a closer function for doors of vehicles other than automobiles, airplanes and ships. The present invention may be applied to a door lock operating device. Further, the present invention may be applied to a door lock operating device that performs both an unlatch function and a closer function of a door of a building structure such as a private house, an apartment house, a factory, and a store.
[0095]
In this embodiment, when the motor 4 is rotated in the forward direction and the unlatched state is detected by the switch 33 during the unlatching operation, the motor 4 is rotated in the reverse direction to return the first reduction gear 12 to the neutral position. However, when the unlatching operation is performed, the motor 4 is energized in the forward direction for a predetermined time, and when the predetermined time has elapsed, the motor 4 is rotated in the reverse direction to return the first reduction gear 12 to the neutral position. good.
[0096]
In the present embodiment, the first reduction gear device and the second reduction gear device are drive-connected in series, but the first reduction gear device and the second reduction gear device may be drive-connected in parallel. In this case, the motor pinion gear 11 and the intermediate pinion gear 21 are fixed to the shaft 9 of the motor 4. Further, the first reduction gear 12 and the intermediate pinion gear 21 are configured separately.
[0097]
In the present embodiment, the example in which the first reduction gear 12 and the first output cam 13 constituting the first reduction gear device are integrally formed of resin has been described. However, the first reduction gear 12 and the first output cam 13 are The first reduction gear 12 and the first output cam 13 may be driven and connected separately. In the present embodiment, an example in which a resin-integrated molding material is used as the material of the second reduction gear 22, the second operation lever 24, and the closer output lever 26 is shown. However, the second reduction gear 22, the second operation lever 24 are used. Alternatively, a metal material may be used as one or more materials of the closer output lever 26.
[0098]
In the present embodiment, the example in which the second reduction gear 22 and the second output cam 23 constituting the second reduction gear device are integrally formed of resin has been described. However, the second reduction gear 22 and the second output cam 23 are The second reduction gear 22 and the second output cam 23 may be driven and connected separately.
[0099]
In the present embodiment, the switch 34 is provided as a detecting means for detecting the neutral position and the closer position of the second reduction gear 22, but as a detecting means for detecting the neutral position and the closer position of the second reduction gear 22. You may provide the 1 rotation sensor which detects that the 2nd reduction gear 22 carried out 1 round (1 rotation). In addition, the motor 4 may be energized only for a predetermined time when the closer is operated. Alternatively, when the second reduction gear 22 rotates once by rotating the motor 4 in the reverse rotation direction when the closer is operated, the motor 4 is rotated in the reverse rotation direction to return the second reduction gear 22 to the neutral position. May be.
[0100]
In the present embodiment, an example in which a claw-like portion (first engagement portion) 19 is integrally formed on one end surface of the unlatch output lever 16 has been described. However, for the purpose of improving the waterproof property of the closer and unlatch actuator 2, an actuator case is provided. A first engaging portion such as a claw-like portion that engages with the lever main body of the first operating lever 14 only at the time of unlatching operation may be provided on the outer periphery of the first output shaft 15 disposed in the inside 3. Alternatively, a first engagement portion that engages with the first output shaft 15 or the unlatch output lever 16 only during the unlatching operation may be provided in the lever main body of the first operation lever 14.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing the structure of a closer and unlatch actuator (first embodiment).
FIG. 2 is a plan view showing the structure of a closer and unlatch actuator (first embodiment).
FIG. 3 is a circuit diagram showing a door lock control circuit (first embodiment);
FIG. 4 is a circuit diagram showing a door lock control circuit (first embodiment).
FIG. 5 is an explanatory view showing the operation of the closer and unlatch actuator (first embodiment).
FIG. 6 is a cross-sectional view showing the structure of a closer and unlatch actuator (second embodiment).
FIG. 7 is a plan view showing the structure of a closer and unlatch actuator (second embodiment).
FIG. 8 is a plan view showing a motor terminal and a switch terminal (second embodiment).
FIG. 9 is a circuit diagram showing internal wiring of a closer and unlatch actuator (second embodiment).
FIG. 10 is a sectional view showing the periphery of a second shaft (second embodiment).
FIG. 11 is a plan view showing the periphery of a second output shaft (second embodiment).
12 is a cross-sectional view taken along the line AA of FIG. 11 (second embodiment).
FIGS. 13A and 13B are explanatory views showing the operation of a door lock ratchet (second embodiment). FIGS.
14A and 14B are explanatory views showing the operation of the closer and unlatch actuator (second embodiment). FIG.
FIGS. 15A to 15C are explanatory views showing the operation of the closer and unlatch actuator (second embodiment). FIGS.
FIGS. 16A and 16B are explanatory views showing an operation of a door lock latch (second embodiment); FIGS.
FIGS. 17A and 17B are explanatory views showing the operation of a door lock latch (second embodiment). FIGS.
18A and 18B are explanatory views showing the operation of the closer and unlatch actuator (second embodiment).
19A and 19B are explanatory views showing the operation of a door lock latch and a ratchet (second embodiment).
FIGS. 20A and 20B are explanatory views showing the operation of the closer and unlatch actuator (second embodiment). FIGS.
FIGS. 21A to 21C are explanatory views showing the operation of the closer and unlatch actuator (second embodiment). FIGS.
FIGS. 22A and 22B are explanatory views showing the operation of a door lock latch (second embodiment). FIGS.
[Explanation of symbols]
1 Door lock
2 Closer & Unlatch Actuator
3 Actuator case
4 Motor
5 Door lock control circuit
6 Neutral point switch (movable contact, second reduction gear neutral position detection means)
7 Latch switch (movable contact, latch state detection means, door open state detection means, half door state detection means)
10 First shaft
11 Motor pinion gear (first reduction gear device)
12 1st reduction gear (1st reduction gear apparatus)
13 First output cam
14 First operating lever
15 First output shaft
16 Unlatch output lever (first output lever)
18 First rotating body
19 Claw-shaped part (first engaging part)
20 Second shaft
21 Intermediate pinion gear (second reduction gear device)
22 Second reduction gear (second reduction gear device)
23 Second output cam
24 Second actuating lever
25 Second output shaft
26 Closer output lever (second output lever)
28 Second rotating body
29 Return spring (second neutral point return means)
33 switch (unlatch position detection means, first reduction gear neutral position detection means)
34 switch (closer position detection means, second reduction gear neutral position detection means)
37 A pair of motor terminals (motor energization circuit)
38 Connector shell
39 Connector pin (external connection terminal)
41 latch
42 Ratchet
51 Opener spring (first output member, leaf spring)
52 Closer cam (second output member, closer cam)
53 Opener output lever
54 Closer output lever
55 Switch terminal (Lead frame for neutral point detection)
56 Terminal for switch (Lead frame for grounding)
57 Switch terminal (Lead frame for detecting door open state)
58 Switch terminal (Lead frame for half-door state detection)

Claims (7)

When closing an open door, the door is opened from a half-latch state or a full latch state, and then the door is closed. A door lock having a ratchet that detachably engages with a latch;
Door lock operation comprising: an unlatching function for releasing the meshing state with the latch by moving the door lock ratchet; and an actuator for performing a closer function for moving the latch of the door lock from a half latch state to a full latch state. A device,
The actuator includes one motor that rotates in the forward and reverse directions, and
A first reduction gear device connected in series with the motor to reduce the rotational speed of the motor;
A second reduction gear device that is connected in series or in parallel with the first reduction gear device to reduce the rotational speed of the motor;
A first output cam that rotates in the forward direction in response to the rotational output of the first reduction gear device or the second reduction gear device;
A second output cam that rotates in the reverse direction in response to the rotational output of the second reduction gear device or the first reduction gear device;
A first output shaft for unlatching the door lock ratchet when rotation in the forward direction of the first output cam is transmitted;
A second output shaft for closing the door lock latch when the rotation of the second output cam in the reverse rotation direction is transmitted ;
The first output cam has an idling function that causes the first output shaft to idly swing during the closer operation and disables the unlatching operation.
The door lock operating device according to claim 1, wherein the second output cam has an idle swing function that causes the second output shaft to swing idle during the unlatch operation so as to deactivate the closer operation . In the door lock operation device according to claim 1,
The first reduction gear device includes a motor pinion gear that rotates integrally with the motor, and a first reduction gear that meshes with the motor pinion gear and reduces the rotation speed of the motor.
The second reduction gear device includes an intermediate pinion gear that rotates integrally with the first reduction gear, and a second reduction gear that meshes with the intermediate pinion gear and reduces the rotational speed of the first reduction gear. Door lock operating device. In the door lock operation device according to claim 2,
The first output cam is integrally provided on an end surface of the first reduction gear, and drives the first output shaft or a first operating lever connected to the first output shaft in an unlatching direction,
The second output cam is integrally provided on an end surface of the second reduction gear, and drives the second output shaft or a second operating lever connected to the second output shaft in the closer direction. A door lock operating device. In the door lock operation device according to claim 3,
A first neutral point returning means for returning a first output lever fixed to the first output shaft and moving the door lock ratchet from the unlatched position to the neutral position when the unlatching operation is completed;
And a second neutral point returning means for returning a second output lever, which is fixed to the second output shaft and moves the door lock latch, from the closer position to the neutral position when the closer operation is finished. A door lock operating device. In the door lock operation device according to claim 4,
The first output lever includes a first engaging portion that engages with the first operating lever only when an unlatching operation is performed. When closing an open door, the door is opened from a half-latch state or a full latch state, and then the door is closed. A door lock having a ratchet that detachably engages with a latch;
Door lock operation comprising: an unlatching function for releasing the meshing state with the latch by moving the door lock ratchet; and an actuator for performing a closer function for moving the latch of the door lock from a half latch state to a full latch state. A device,
The actuator includes one motor that rotates in the forward and reverse directions, and
A first reduction gear device connected in series with the motor to reduce the rotational speed of the motor;
A second reduction gear device that is connected in series or in parallel with the first reduction gear device to reduce the rotational speed of the motor ;
A first output member that rotates by receiving rotational output of the previous SL second reduction gear in the forward direction,
A second output member which rotates in the reverse direction by receiving a rotational output of the second reduction gear equipment,
A first output shaft for unlatching the door lock ratchet when rotation in the forward direction of the first output member is transmitted;
A second output shaft for closing the door lock latch when the rotation of the second output member in the reverse direction is transmitted;
The first reduction gear device includes a motor pinion gear that rotates integrally with the motor, and a first reduction gear that meshes with the motor pinion gear and reduces the rotation speed of the motor.
The second reduction gear device includes an intermediate pinion gear that rotates integrally with the first reduction gear, and a second reduction gear that meshes with the intermediate pinion gear and reduces the rotational speed of the first reduction gear,
The first output member is integrally provided on an end surface of the second reduction gear, and a plate spring that drives the first output shaft or a first operating lever connected to the first output shaft in an unlatching direction. And
The second output member is integrally provided on an end surface of the second reduction gear, and is used for a closer for driving the second output shaft or a second operation lever connected to the second output shaft in the closer direction. A door lock operating device characterized by being a cam. In the door lock operation device according to claim 6,
The second reduction gear is formed on the outer periphery of the second rotating body ,
Wherein the second rotating member rotates one round around the centered axis to the opposite direction of rotation, the door lock operation device and the second rotary member, characterized in that the return to the neutral point.

Images