JP4105621B2 - Automatic rotating storage seat system for vehicles - Google Patents

Description

  The present invention relates to an automatic rotating storage seat system for a vehicle, and in particular, an automatic rotating storage seat for a vehicle that automatically performs storage operation electrically and moves the right side portion and the left side portion forward with a time difference in a left and right separated seat back. About the system.

For example, a passenger vehicle having three rows of seats has been proposed in which a large space can be formed at the rear of the vehicle interior by folding the last row of third seats (for example, Patent Documents). 1).
Japanese Utility Model Publication No. 5-40029

   According to the seat storing operation disclosed in Patent Document 1, first, the seat back is moved forward and overlapped with the seat cushion on the basis of manual human power such as a driver, and then the seat back is used as the seat cushion. Swing the seat cushion backward while keeping it in contact with each other, store the seat back and seat cushion in the storage recess formed on the vehicle floor, etc., and finally fold the seat support Yes. Such a storage structure forms a large space for use at the rear of the vehicle interior.

  In the conventional storage seat structure described above, when storing the seat, when the seat back is overlapped with the seat cushion, the seat back must be moved forward. Great power is needed. Therefore, a large amount of labor is required for the operator to move the seat back forward. Further, when the sheet is stored in the storage unit, a larger force is required to rotate the entire heavier sheet. In order to store the sheet as described above, a worker such as a driver needs more labor, and there is a drawback that a worker having a weak force such as a woman cannot easily work. Therefore, there is an increasing need to be able to automatically store the seat electrically by using a motor.

  Further, when configuring a system that can automatically store a vehicle seat electrically, it is required to pay attention to the following points. In other words, when the seat back has a left and right separation type structure, when the vehicle is automatically moved forward by electric power from the motor, the right (driver's seat) seat back and the left (passenger seat) seat back are integrated forward. Although it is desirable, it may not be moved forward in an integrated state due to its structure. Therefore, it is desired to realize a better forward operation from the viewpoint of obtaining a seatback forward operation state that is good in appearance.

  In view of the above-described problems, the object of the present invention is to reduce the labor and burden of the storage work by enabling the seat back to be electrically operated, and to move the left and right in a smooth and good operating state. An object of the present invention is to provide an automatic rotating storage seat system for a vehicle in which a separation type seat back is moved forward.

  In order to achieve the above object, the vehicle automatic rotating storage seat system according to the present invention is configured as follows.

A first automatic rotating storage seat system for a vehicle (corresponding to claim 1) includes a seat back having first and second seat backs separated to the left and right, and the seat back as a seat cushion via a rotating shaft. comprising a sheet rotatably provided, and the seat back superimposed on the seat cushion, I system der to be stored in the floor recess of the body by swinging the sheet, the first and second seat back, respectively First and second reclining mechanism portions that are fixed to a seat cushion in a standing posture or a forward tilted posture, and first and second seat postures that are fixed by the first and second reclining mechanism portions are released. The second reclining lock actuator, the seat cushion, and the seat back are stored in the floor storage recess of the vehicle body. And a first reclining mechanism, wherein the first reclining mechanism includes a forward tilt detection switch for detecting that the first seat back is tilted forward to a predetermined forward tilt position, and the first seat back is a seat cushion. And a first lock detection switch for detecting that the second reclining mechanism unit is overlapped with the seat cushion and is fixed in the forward tilted position. A second lock detection switch for detecting the occurrence of the failure, and the first and second reclining lock actuator units and the seat swing based on signals from the forward tilt detection switch and the first and second lock detection switches. a control means for operating the mechanism part, the control means, the second reclining lock actuator based on a signal from the previous fall detection switch It actuates the motor unit, sea urchin constituted by Ru actuates the seat rocking mechanism portion based on the two signals from the first and second lock detection switch.

In the above first vehicle self-propelled rotating storage seat system, for example, with respect to the third row of the last row of the passenger vehicle having a three-row seat structure, a reclining mechanism portion, a reclining lock actuator portion, a seat swing mechanism portion, It is possible to automatically store in the storage section by providing control means for operating each mechanism section and actuator section by each detection switch of the reclining mechanism section . In this case, first and ahead of the seat back is brought into contact with the seat back to the seat cushion by a reclining mechanism, the sheet over preparative rocking mechanism portion following the seat cushion and the seat back in clockwise integral state It is swung back and stored in a storage section such as a vehicle floor. As described above, the storage operation of the third seat or the like does not require manual storage of a driver or the like, and is performed automatically, and the operator only has to press the switch for operating the device. The burden can be very light. In particular, since the seat back to be stored has a left and right separation type structure, the seat back is in a standing posture or a forward leaning posture with respect to each of the first seat back (for example, the right seat back) and the second seat back (for example, the left seat back). reclining mechanism and the reclining lock actuator unit for fixing or releasing the that provided. Then, ahead of schedule the operation of the first and second seat back by each unit構部and actuator portion so performed as occurs the time difference, by Rukoto is housed seat cushion and the seat back after ahead operation is completed, for the user It is possible to perform forward movement that is good and smooth in appearance.

  According to the present invention, an automatic seat back forward-reverse mechanism and an automatic seat swing mechanism are provided, and the seat back can be electrically superposed on the seat cushion and the entire seat can be swung to be stored in the floor recess of the vehicle body. When storing, etc., a worker's labor and burden can be reduced. In addition, the left and right separation-type seat back is moved forward separately on the right and left sides, and the front is moved forward with a time difference, so that the seat back can be moved forward with good appearance. .

  DESCRIPTION OF EMBODIMENTS Preferred embodiments (examples) of the present invention will be described below with reference to the accompanying drawings.

  In FIG. 1, a vehicle 10 includes a driver seat (a front seat 13 including a driver seat 9 and a passenger seat (passenger seat)), a first rear seat 14 on the rear side of the front seat 13, on a floor 12 constituting a passenger compartment 11. A second rear seat 15 is provided on the rear side of the first rear seat 14. The vehicle 10 has a three-row seat structure of a riding type, and the second rear seat 15 is also called a third seat. The vehicle seat is provided with an electric storage structure 20 for storing the vehicle seat in the floor storage recess 16. The second rear seat 15 has a left and right separated seat back, and the seat back has a right side and a left side. It is comprised in the state which made the part independent.

  In FIG. 2, the second rear seat 15 including the electric storage structure 20 is provided with a seat cushion 21 on the floor 12, and left and right seat backs 22 and 23 are provided at the rear portion of the seat cushion 21 so as to be able to be moved forward and backward. . A left headrest 24 that can be moved forward and backward is provided at the top of the left seat back 22, and a right headrest 25 that can be moved forward and backward is provided at the top of the right seat back 23.

  As shown in FIG. 2, a seat operation button switch 26 (see FIG. 8, 110 in FIG. 8) is provided behind the second rear seat 15 and at a position away from the side surface of the second rear seat 15.

  In the electric storage structure 20, left and right support shafts 31 and 32 are attached to the left and right rear ends of the seat cushion frame (member 72 in FIG. 3) constituting the seat cushion 21, and the right support shaft 32 is attached via the attachment member 33. The left support shaft 31 is attached to the swing drive mechanism 35 and the swing drive mechanism 35 is attached to the floor 12 while being rotatably attached to the floor 12. In FIG. 2, numbers 31 and 32 are attached to the support shafts. In practice, however, the support shafts 31 and 32 are common support shafts.

  FIG. 3 shows the frame structure of the second rear seat 15. This frame structure is a main structure of the electric storage structure 20 in the vehicle automatic rotation storage seat system according to the present invention. The automatic rotating storage seat system for a vehicle automatically swings the whole of the second rear seat 15 in the clockwise direction, and the automatic seat back forward tilt mechanism that automatically tilts the seat back (22, 23) forward. It consists of an automatic sheet swing mechanism.

  The automatic seat back forward tilting mechanism is a mechanism for automatically tilting the left seat back 22 and the right seat back 23 toward the seat cushion 21 and overlapping the seat cushion 21 in the second rear seat 15. The automatic seat back forward tilt mechanism includes reclining mechanism portions 42L and 42R attached to the seat back frames 41L and 41R of the seat backs 22 and 23, and reclining lock actuator portions 43L and 43R.

  The automatic seat swing mechanism is a mechanism that swings the left and right seat backs 22 and 23 and the seat cushion 21 integrally and automatically stores them in the recess 16 of the vehicle body floor behind the second rear seat 15. is there. The automatic seat swing mechanism includes cushion lock mechanism portions 44L and 44R and a storage unit mechanism portion 45.

  The automatic seat back forward tilt mechanism and the automatic seat swing mechanism are operated by the seat operation switch 26 disposed near the second rear seat 15, whereby the second rear seat 15 is tilted forward and retracted. A return operation is performed.

  Here, the internal structure of the reclining mechanism (42L, 42R) will be described with reference to FIG. In this example, an example of the reclining mechanism unit 42L will be described. The structure of the reclining mechanism part 42R is the same as that of the reclining mechanism part 42L. 4A shows a state in which the left seat back 22 is standing and cannot be tilted forward, and FIG. 4B shows a state in which the left seat back 22 can tilt forward.

  The reclining mechanism portion 42L is attached to the seat back frame 41L of the left seat back 22. The reclining mechanism part 42L is fixed together with the base member 50, the lock member 51 having a circular top part, the reclining lock member 52 rotatable around the shaft 52a, and the left seat back 22. A forward-falling detection switch 53, a lock-on detection switch 54, and a lock-off operation detection switch 55 are provided. Teeth 51 a and 51 b are formed on the arcuate top side of the lock member 51. A tooth portion 52 b is also formed on the lower side of the distal end of the lock member 52. In FIG. 4A, the tooth portion 51 a of the lock member 51 is engaged with the tooth portion 52 b of the lock member 52. A central portion 51 c of a circular equivalent portion of the lock member 51 is a rotation shaft of the left seat back 22. A spiral portion (not shown) is provided between the lock member 51 and the reclining mechanism portion 42L in the rotation shaft 51c. The spiral portion has a structure that applies a counterclockwise rotational force in FIG. 4A to the left seat back 22 by a spiral spring so that the left seat back 22 can be tilted forward.

  In addition, a reclining lock portion 56 is provided in the reclining mechanism portion 42L. The reclining lock portion 56 is for fixing the left seat back 22 to a forwardly tilted position or a standing position. The reclining lock portion 56 includes the lock member 51 and the lock member 52 described above, a cam member 57, a cam member 58, and a spring 59. Each of the cam members 57 and 58 is rotatably attached around the shafts 57a and 58a. A lever 60 for manually raising the end of the cam member 58 upward is provided.

  The reclining lock portion 56 is in a locked state in the state of FIG. 4A and keeps the left seat back 22 in an upright state. Further, in the state of FIG. 4B, the engagement between the tooth portion 51a of the lock member 51 and the tooth portion 52b of the lock member 52 is released, and the locked state is released.

  As shown in FIG. 4B, the forward tilt detection switch 53 is unlocked so that the left seat back 22 can be tilted forward, and the left seat back 22 is at a predetermined angle (for example, about 16 °). It turns on when it becomes, and is off in the previous state. As described above, the forward tilt detection switch 53 detects when a forward tilt operation occurs in the left seat back 22, and sends a detection signal to an electronic control unit (ECU) (not shown).

  The forward tilt detection operation of the forward tilt detection switch 53 is performed in a contact relationship between the switch lever 53a attached in a cantilever state and the cam member 61 provided around the rotation shaft 51c. The tip of the switch lever 53a is always in contact with the peripheral surface of the cam member 61. The cam member 61 is fixed to the rotating shaft 51c. When the reclining mechanism portion 42L is tilted forward and rotated counterclockwise around the rotating shaft 51c together with the reclining mechanism portion 42L, the switch lever 53a moves to the periphery of the cam member 61. As a result, the switch lever 53a is turned on by the corner of the cam member 61 (the boundary between the straight portion and the curved portion), and the forward tilt detection switch 53 is turned on.

  The lock-on detection switch 54 is turned on when the reclining mechanism portion 42L is locked, and is turned off when the reclining mechanism portion 42L is not locked. The lock-on detection switch 54 has two contacts operated on the end of the cam member 57. When the reclining mechanism portion 42L is locked, the lock members 51 and 52 are engaged with the tooth portions 51a and 52b or engaged with the tooth portions 51b and 52b, and the upper end portion of the cam member 57 is raised. Since it is in a state, it is turned on and an on signal is sent to the ECU. This state is shown in FIG. Further, when not locked, as shown in FIG. 4B, the respective tooth portions of the lock members 51 and 52 are not engaged with each other, the cam member 57 is in a lowered state, and the contact points are There is no contact. Thereby, it is in an off state.

  The lock-off operation detection switch 55 is turned on when the reclining lock switch is released automatically or manually, and is turned off when it is not released, and has two contacts operated by the cam member 58. When the release operation is being performed, the end of the cam member 58 is in a raised state, and thus the contact is in contact and in an on state. When not operated, the cam member 58 is in a lowered state, and the contact is not in contact. As a result, an off state is established and an off signal is sent to the ECU.

  In the above structure, as will be described later, when the left end in FIG. 4 of the cam member 58 is pulled upward by pulling with the cable 71 with an actuator or manually raising the lever 60, the cam member 58 is centered on the shaft 58a. And the cam member 57 is rotated counterclockwise about the shaft 57a. Thereby, the tooth part 52b of the lock member 52 rises upward, and the engagement with the tooth part 51a of the lock member 51 is released. At that time, the left seat back 22 tends to fall forward due to the reaction force of the spiral spring of the spiral portion. At this time, when a force to manually stand against the left seat back is not applied, the tooth portion 52b of the lock member 52 passes through the arcuate top portion of the lock member 51 and the position of the tooth portion 51b of the lock member 51 is reached. Then, the end portion of the lock member 52 is pulled by the spring 59, whereby the tooth portion 52b of the lock member 52 is engaged with and locked to the tooth portion 51b of the lock member 51, and is brought forward.

  Further, when the end of the cam member 58 is pulled upward by manually pulling the lever 60 in the forward-turned state, the cam member 58 rotates about the shaft 58a, and the cam member 57 is counterclockwise about the shaft 57a. Rotate around. Thereby, the tooth part 52b of the lock member 52 rises upward, and the engagement with the tooth part of the lock member 51 is released. In this state, the left seat back 22 can be raised manually. The lever 60 may be returned when the left seat back 22 is slightly raised manually. At that time, the tooth portion 52 b of the lock member 52 passes through the arcuate top portion of the lock member 51 and becomes the position of the tooth portion 51 a of the lock member 51. The tooth part 51a of the lock member 51 is engaged with the tooth part 52a of the lock member 52 and locked. Thereby, the operation of raising the left seat back 22 is completed.

  When the end of the cam member 58 is pulled upward by manually pulling the lever 60, the cam member 58 rotates about the shaft 58a, and the cam member 57 rotates counterclockwise about the shaft 57a. Thereby, the locked state of the left seat back 22 is released as described above, and the left seat back 22 can be manually adjusted forward and backward. By adjusting the left seat back 22 to an arbitrary angle and returning the lever 60, the cam member 52 is rotated about the shaft 52a by the spring 59, and the tooth portion 52b is engaged with the tooth portion 51a of the lock member 51 and locked. The left seat back 22 can be set at an arbitrary inclination angle by a series of these operations.

  In the above description, the reclining mechanism 42L includes the forward tilt detection switch 53 that detects the occurrence of the forward tilt state of the left seat back 22. In the present invention, the forward tilt detection switch 53 performs the forward tilting operation of the seat back at the first stage when a command to store the second rear seat 15 is generated. At that time, the left seat back 22 and the right seat back 23 are operated. This is used to make the time-lapse of the fall of the time with a time difference. That is, the seat back is tilted forward because the seat back is composed of two independent left and right portions of the left seat back 22 and the right seat back 23. For example, the reclining mechanism 42L is first actuated to move the left seat back 22 first. When the forward fall detection switch 53 is turned on at an intermediate stage, the operation of the reclining mechanism portion 42R of the right seat back 23 is started on the condition, and the forward fall of the right seat back 23 is started. The structure of the reclining mechanism part 42R of the right seat back 23 is the same as that of the reclining mechanism part 42L. Note that it is possible to arbitrarily determine which of the left seat back 22 and the right seat back 23 that are independently configured in the second rear seat 15 in terms of structure and operation control is to be tilted forward first.

  FIG. 5 shows the internal structure of the reclining lock actuator 43L described above. The reclining lock actuator 43L is attached to the edge of the seat back frame 41L on the opposite side of the reclining mechanism 42L, and includes an actuator 81, a rod 82, a rod support 83, and a magnet 84 attached to the rod 82. And Hall sensors 85 and 86 attached to the lower limit position and the upper limit position set by the rod support portion 83, and the above-described cable 60 attached to the end portion of the rod 82.

  The actuator 81 operates when an operation signal is input from the ECU, and lowers or raises the rod 82.

  The rod 82 has an end attached to the drive shaft of the actuator 81, a cable 71 attached to the other end, and a magnet 84 attached to a predetermined position. And it is supported by the rod support part 83 and moves only in the vertical direction.

  The magnet 85 is for applying a magnetic field to the hall sensors 85 and 86 when the rod 82 moves up and down. The hall sensors 85 and 86 are for detecting the magnetic field from the magnet 84 and detecting the position of the rod 82 when the magnet 84 passes. The cable 71 is attached to the end portion of the rod 82, and is attached to the upper end portion of the cam member 58 of the reclining mechanism portion 42L along the frame 41L of the left seat back 22 as described above.

  When the actuator 81 is actuated by a signal from the ECU and the rod 82 is lowered, the cable 71 attached to the upper end of the rod 82 is pulled. Thereby, the end of the cam member 58 of the reclining mechanism 42L is pulled up. When the rod 82 is lowered and the magnet 84 comes to the height of the position of the hall sensor 85, a signal from the hall sensor 85 is sent to the ECU by the magnetic field from the magnet 84. Further, when the actuator 81 is actuated by a signal from the ECU to raise the rod 82, the cable 71 attached to the upper end portion of the rod 82 is loosened, and the cam member 58 is pulled back by the spring 59 of the reclining mechanism portion 42L. It is. When the magnet 84 comes to the height of the hall sensor 86, a signal from the hall sensor 86 is sent to the ECU by the magnetic field from the magnet 84.

  The structure of the reclining lock actuator 43L is the same as that of the reclining lock actuator 43R with respect to the reclining mechanism 42L of the right seat back 23. As described above, the automatic seat back front-end mechanism is provided for each of the two left and right seat backs 22 and 23.

  FIG. 6 is an internal structure diagram of the cushion lock mechanism 44L constituting the automatic seat swing mechanism. The cushion lock mechanism 44R provided on the right side also has the same structure as the cushion lock mechanism 44L. The cushion lock mechanism 44L fixes the seat cushion 21 to the floor. The cushion lock mechanism portion 44L is fixed to the floor, and includes a cushion lock actuator 91 attached to the seat cushion frame 72, a ratchet 92, a lock portion including a latch 93, a latch switch 94, a lock switch 95, and a release switch 96. And a striker 97.

  The cushion lock actuator 91 operates to pull the ratchet 92 when the forward tilt of the left seat back 22 is completed and a lock-on detection switch-on signal is sent to the ECU 75 (shown in FIG. 3). When the release switch 96 is turned on, the operation of pulling the ratchet 92 is stopped. Further, when the latch switch 94 is turned on, the ratchet 92 is returned.

  The ratchet 92 is to bring the latch 93 into a locked state and an unlocked state. When the end of the ratchet 92 is pulled by the cushion lock actuator 91, the ratchet 92 rotates around the shaft 98, and the protruding portion of the ratchet 92 92b is released from the latch 93, and the latch 93 is not in the locked state. When the latch switch 94 is turned on, the end portion of the ratchet 92 is returned by the cushion lock actuator 91 and rotates around the shaft 92a.

  The latch 93 forms a state where the striker 97 is locked or not locked. When the protruding portion 92b of the ratchet 92 is joined to the end portion 93a of the latch 93, the latch 93 cannot be rotated about the shaft 93b and is locked, and the seat cushion 21 is fixed. When the ratchet 92 is pulled and the protruding portion 92b of the ratchet 92 is disengaged from the end 93a of the latch 93, the latch 93 can rotate around the shaft 93b. When the seat cushion 21 is moved upward, the latch 93 is rotated by the striker 97, and the striker 97 is detached from the concave portion 93c of the latch 93. At this time, the latch switch 94 is pushed by the projecting portion 93d of the latch 93. Turn on 94.

  The striker 97 is fixed to the floor. When the seat cushion 21 is lowered, the striker 97 enters the concave portion 93c of the latch 93 and locks the seat cushion 21 by locking the latch 93. is there.

  The release switch 96 is turned on when the ratchet 92 is pulled and turned off when the ratchet 92 is returned. The latch switch 94 is turned on when the latch 93 is rotated by the striker 97. Further, it is turned on when the striker 97 pushes up the latch 93. The lock switch 95 is turned off when the ratchet 92 returns to the initial position.

  As shown in FIG. 3, the storage unit mechanism 45 has a structure in which a motor 74 and a seat rotation shaft 31 are attached in a gear box 73. The gear box 73 is fixed to the passenger compartment floor 12. When the motor 74 is actuated, the rotation of the motor 74 is transmitted by a plurality of gears in the gear box 73, the seat rotation shaft 31 is rotated, and the entire seat is rotated about the seat rotation shaft 31.

  FIG. 3 also shows the positions of the control device and the harness. An electronic control unit (ECU) 75 as a control device is mounted on the seat cushion frame 72, a harness is pulled out from the ECU 75, a reclining related harness 76 to the reclining mechanism portions 42L and 42R, and reclining lock actuator portions 43L and 43R. A back actuator harness 77, a cushion lock-related harness 78, a motor harness 79, and a body harness 80 are included.

  The reclining-related harness 76 is configured by wiring to the forward tilt detection switch 53, the lock-on detection switch 54, and the lock-off operation detection switch 55. The back actuator harness 77 is configured by wiring to the reclining lock actuator 81 and the hall sensors 85 and 86. The cushion lock-related harness 78 is configured by wiring to the cushion lock actuator 91, the lock switch 95, the release switch 96, and the latch switch 94. The motor harness 79 is a wiring to the motor 74, and the body harness 80 is a wiring from a battery (not shown).

Next, the configuration of the control device will be described with reference to FIG. A control unit (ECU) 75 constitutes the main part of the control device. In addition, in the circuit elements of the circuit configuration of the control device shown in FIG. 7, the same reference numerals are given to the same elements provided on the left and right seat backs, and “L” or “R” is further added. To distinguish left and right.
The microcomputer in the unit is connected to the power supply wiring from the battery 101 through the fuses 102, 103, 104 through the input interface, and is connected from the battery 101 through the ignition switch 105 and the fuse 106. Has been. Further, a warning lamp 107, an AT shift position switch 108, a tailgate switch 109, a sheet storing / returning switch (operation switch) 110 which is a command means for performing a seat raising / lowering operation, and left and right reclining pre-tilt tilt switches 53R and 53L (described above) The right reclining lock detection switch (lock-on detection switch) 54R, the right reclining lock retract detection switch (lock-off operation detection switch) 55R, and the left reclining lock. Detection switch (lock-on detection switch) 54L, left reclining lock retract detection switch (lock-off detection switch) 55L, right latch lock detection switch (latch switch) 94R, right latch lock retract Intelligent switch (release switch) 96R, right latch lock release detection switch (lock switch) 95L, left latch lock detection switch (latch switch) 94L, left latch lock retract detection switch (release switch) 96L, left latch lock release detection switch ( A lock switch 95L, a sheet floating detection switch 111, a signal from the short coupler 112, and a ground wire 113 are connected. Via the output interface, the motor 74 of the storage unit 35, the right reclining lock actuator 81R, the left reclining lock actuator 81L, the right latch lock actuator 91R, and the left latch lock actuator 91L are connected. When the operation switch 110 is turned on to the storage side, the storage operation is started. When the operation switch 110 is turned on to the return side, the return operation is started. The ECU 75 is connected to a motor current detector 114 that detects the motor current of the storage unit and a seat cushion position sensor 115 that detects the angle of the seat cushion from the floor, and further, a buzzer alarm 116 and a warning 117. Is connected. The operation switch 110 is disposed behind the seat.

  The motor 74 of the storage unit 35 is provided with a clutch (not shown), and the mechanism can be operated by manual operation without using a microcomputer.

  The microcomputer executes a program according to the flowcharts shown in FIGS. 10 to 13 and 19 by the operation of each of the switches and sensors.

  Here, with reference to FIG. 8 and FIG. 9, a basic operation when the second rear seat 15 is stored will be described. The storage operation is performed by opening the tailgate T and the user U pressing the operation switch 110 (corresponding to the operation switch 26 in FIG. 2) on the storage side (FIG. 8A). A front-falling state (FIG. 8 (b)) in which the seat back 23 has fallen forward is created. At this time, in the forward tilting operation of the left seat back 22 and the right seat back 23, for example, the left seat back 22 starts to tilt first, and after the forward tilt has occurred by a predetermined angle, the right seat back 23 starts to tilt forward. To be controlled. Next, the second rear seat 15 that rotates together with the seat cushion 21 from the state where the forward tilting is completed is rotated clockwise integrally as a whole until it is stored in the floor recess 16 (FIG. 8 ( c)) A series of operations are performed by electric drive. In the return operation, the tailgate T is opened and the user U continues to push the return side of the operation switch 110, whereby the left and right seat backs 22, 23 and the seat cushion 21 are stored in the floor recess 16 as a storage space. From the stowed storage state (FIG. 9A), the second rear seat 15 is integrally rotated counterclockwise until the left and right seat backs 22, 23 and the seat cushion 21 are united and moved forward (see FIG. 9). 9 (b)) A series of operations are performed by electric drive. The seatbacks 22 and 23 of the second rear seat 15 are manually returned.

  In the above description, when the user U presses the switch 110 to release the operation during the seat rotation operation, the operation is stopped at that time.

  If an overload is detected during the seat rotation operation, the operation stops at that point, and when the switch is operated again, it restarts.

  When the seat stop range is halfway, the alarm in the buzzer and meter is turned on to warn the user that the cushion is not locked.

Next, the automatic forward tilting operation and the seat swinging operation of the second rear seat 15 will be described with reference to the flowcharts shown in FIGS.
When the storage side of the operation switch 110 is pushed with a finger and the switch is turned on, the program starts. First, it is determined whether or not the AT shift position is the parking position (step ST10). If the shift position is not the parking position, execution ends. When the shift position is the parking position, it is determined whether or not the parking brake is operating (step ST11). When the parking brake is not operating, the execution is terminated, and when the parking brake is operating, the tailgate sensor 109 is determined. Is detected (step ST12), and it is determined whether the tailgate is open (step ST13). If the tailgate is not open, the program is terminated and the operation is stopped. When the tailgate is open, proceed to the next step.

  The left reclining lock actuator 81L is controlled in the cable pulling direction (step ST14L). Thereby, the reclining lock actuator 81L pulls the reclining lock cable 71L. FIG. 14A shows the reclining mechanism 42L at that time, and the cam member 57L is pulled in the direction of the arrow. As a result, the reclining lock 52bL is released, and the left seat back 22 starts to tilt forward by the reaction force of the spiral spring of the spiral portion 51L (FIG. 14B). The ECU 75 detects that the lock-off operation detection switch 55L is turned on (step ST15L), and stops the reclining lock actuator 81L (step ST16L). The ECU 75 detects that the forward tilt detection switch 53L is turned on and starts the forward tilt operation of the right seat back 23 (step ST17L), and controls the reclining lock actuator 81L in the cable return direction (step ST18L). The reclining lock actuator 81L returns the cable 71L. The ECU 75 detects that the hall sensor 86L is turned on (step ST19L), and stops the reclining lock actuator 81L (step ST20L). The left lock-on detection switch 54L is turned on (step ST21L). The left seat back 22 is completed to fall forward.

  The ECU 75 detects that the left seat front tilt switch 53L is turned on and controls the right reclining lock actuator 81R in the cable pulling direction (step ST14R). Thereby, the reclining lock actuator 81R pulls the reclining lock cable 71R. The cam member 57R is pulled in the direction of the arrow. Accordingly, the reclining lock 52bR is released, and the right seat back 23 starts to tilt forward by the reaction force of the spiral spring of the spiral portion 51R. The ECU 75 detects that the lock-off detection switch 55R is turned on (step ST15R), and stops and controls the reclining lock actuator 81R (step ST16R). The ECU 75 detects that the forward tilt detection switch 53R is turned on (step ST17R), and controls the reclining lock actuator 81R in the cable return direction (step ST18R). The reclining lock actuator 81R returns the cable 71R. The ECU 75 detects that the hall sensor 86R is turned on (step ST19R), stops and controls the reclining lock actuator 81R (step ST20R), the left seat lock on detection switch 54R is turned on (step ST21R), and the left seat back 23 is tilted forward. Complete.

  After step 14R and step 14L, operation is performed simultaneously with a time difference from operation step ST21R to ST21L. When the sheet lock detection switches 54R and 54L are turned on at the same time, the operation shifts to the sheet rotating and storing operation.

  Next, the sheet rotating and storing operation will be described with reference to the flowcharts shown in FIGS. 12 and 13 and the change diagrams of the operation states of FIGS. 15 and 16. First, the cushion lock shown in FIG. 15 is released. The ECU 75 controls the cushion lock actuator 91 in the ratchet pulling direction when the seat backs 22 and 23 complete the forward tilting and detects that the lock-on detection switch 54 is turned on (step ST22). Accordingly, the ratchet 92 is pulled and the release switch 96 is turned on (FIG. 16 (a)).

  Next, the ECU 75 detects that the release switch 96 is turned on (step ST23), stops the cushion lock actuator 91 (step ST24), and controls the rotation of the motor 74 in the storage direction (step ST25). Thereby, the sheet rotates in the storage direction. The latch 93 is rotated by the striker 97, and the latch switch 94 is turned off (FIG. 16B). The ECU 75 detects that the latch switch 94 is turned on (step ST26), and controls the cushion lock actuator 91 in the ratchet return direction (step ST27).

  When the motor 74 is operating, the value of the motor current detector 114 is detected, and it is determined whether or not it is greater than or equal to a predetermined value (step ST28). If the motor current value is equal to or greater than the predetermined value, the operation of the motor 74 is stopped (step ST29). If the motor current value is smaller than the predetermined value, the motor 74 is operated as it is. When the motor operation is stopped in step ST29, the output from the seat cushion position sensor 115 is detected (step ST30). If the value is not more than a predetermined value (for example, 30 °) as shown in FIG. 17, it is determined (step ST31). If it is below the predetermined value, the ECU 75 outputs a signal for sounding the alarm buzzer 116 (step ST32), for example, 10 intermittent alarm buzzers. When the value is larger than the predetermined value, the program ends. When the sheet rotates and stops to the storage position by executing step ST25, the ECU 75 detects the motor current value (step ST28), detects the current due to the increase in motor load, and controls the rotation stop of the sheet (step ST29). This completes the storage.

  Further, when the ignition switch 105 is turned on, the ECU 75 operates to detect the output from the seat cushion position sensor 115, and if it is a predetermined value (for example, 30 ° or less) as shown in FIG. Displayed in warning 117 in meter. Thereby, it is possible to prevent the user from sitting and traveling in a state where the seat cushion 21 is not securely locked.

  Next, the operation from the housed state to the forward-turned state will be described with reference to the flowchart shown in FIG. 19 and FIG. The ECU 75 detects that the operation switch 110 is pushed to the return side (step ST40), and first determines whether or not the shift position is a parking position (step ST41). If the shift position is not the parking position, execution ends. When the shift position is the parking position, it is determined whether the parking brake is on (step ST42). When the parking brake is off, the execution ends. When the parking brake is on, the output from the tailgate sensor 109 is detected (step ST43), and it is determined whether the tailgate is open (step ST44). If the tailgate is not open, the program is terminated and the operation is stopped. When the tailgate is open, the motor 74 is controlled to rotate in the return direction (step ST45). The motor 74 rotates in the return direction. At this time, the motor current value is detected, and it is determined whether the motor current value is larger than a predetermined value (step ST46). If the motor current is below a predetermined value, the motor operates as it is (step ST47). If the motor current value is larger than the predetermined value, a stop signal is output to the motor 74 (step ST48). Thereby, the motor 74 stops. Next, the output of the seat cushion position sensor 115 is detected (step ST49), and it is determined whether the value from the seat cushion position sensor 115 is equal to or less than a predetermined value (for example, 30 °) as shown in FIG. ST50). If it is below the predetermined value, an output signal to alarm buzzer 116 is output (step ST51). Thereby, the alarm buzzer 116 is intermittently 10 times, for example. If it is greater than the predetermined value, the program execution is terminated. By continuing to execute step ST45, the striker 97 pushes up the latch 93 from the state of FIG. 18A, and the latch switch 94 is turned on (step ST52). The striker 97 pushes up the latch 93, the ratchet 92 returns to the initial position as shown in FIG. 18B, and the lock switch 95 is turned on. The ECU 75 detects that the lock switch 95 is turned on (step ST53), and stops the rotation of the motor (step ST54). Thereby, it will be in a forward-turned state, and it will be in the state which can be used by inverting the seat backs 22 and 23 by the user.

  14B, when the end of the cam member 58 is pulled upward by pulling the lever 60 in the forwardly tilted state as shown in FIG. 14B, the cam member 58 rotates around the shaft 58a, and the cam member 57 is pivoted. Rotate right about 57. As a result, the contact 52c of the lock member 52 is pushed, the lock member 52 rotates leftward about the shaft 52a, the tooth portion 52b rises upward, and the engagement with the tooth portion 51a of the lock member 51 is released. In that state, raise the seat back manually. When the seat back is slightly raised, the lever 60 can be returned. Continue to raise the seat back manually. At that time, the tooth portion of the lock member 52 passes through the arcuate top portion of the lock member 51 and becomes the position of the tooth portion 51 a of the lock member 51. Further, by manually positioning the seat back at a desired angle and returning the lever 60, the tooth portion 52b of the lock member 52 is engaged with the tooth portion 51a of the lock member 51 and locked. Thereby, the seat back can be set at a desired inclination angle.

  When the ignition switch 105 is turned on after the completion of step ST48, the ECU 75 operates to detect an output from the seat cushion position sensor 115, and if a predetermined value (for example, 30) as shown in FIG. If it is less than or equal to (°), it is displayed on the warning 117 in the meter. Thereby, it is possible to prevent the user from sitting and traveling in a state where the seat cushion 21 is not securely locked.

  Thus, since each mechanism operates continuously by the control device, it is possible to perform complete storage and restoration of the sheet only by operating the operation switch 110.

  The configurations and the like described in the above embodiments are merely schematically shown to such an extent that the present invention can be understood and implemented. Therefore, the present invention is not limited to the described embodiments and is not limited to patents. Various modifications can be made without departing from the scope of the technical idea shown in the claims.

It is an internal structure figure showing roughly a passenger vehicle provided with an automatic rotation storage seat system for vehicles concerning the present invention. 1 is a front perspective view of a seat to which a vehicular automatic rotating storage seat system according to the present invention is applied. 1 is a perspective view of a seat frame of an in-vehicle automatic rotation storage seat system according to an embodiment of the present invention. It is a block diagram of the reclining mechanism part provided inside the seat back. It is a partial block diagram which shows the structure of a reclining lock actuator part. It is an internal structure figure of the seat cushion lock mechanism which comprises a seat rocking | fluctuation mechanism. It is a circuit diagram of the control apparatus which controls operation | movement of the vehicle-mounted automatic rotation storage sheet which concerns on this embodiment. It is a state transition diagram showing a basic operation for storing a sheet. It is a state transition diagram showing a basic operation for returning a sheet. It is a flowchart which shows the 1st part of the control procedure of a sheet | seat accommodation operation | movement. It is a flowchart which shows the 2nd part of the control procedure of a sheet | seat accommodation operation | movement. It is a flowchart which shows the 3rd part of the control procedure of a sheet | seat accommodation operation | movement. 10 is a flowchart showing a fourth part of a control procedure of the sheet storing operation. It is a flowchart which shows the 5th part of the control procedure of a sheet | seat accommodation operation | movement. It is a block diagram of the reclining mechanism part in a seat back which shows two states of seat back forward tilting operation. It is an internal structure figure which shows the operation state of a latch part when it becomes a stowed state from the front-down state of a sheet | seat. It is an internal structure figure which shows the transition state of operation | movement of a latch part when it changes from the forward-tilted state of a sheet | seat to a storage state. It is a figure which shows the improper position of the seat cushion warned by an alarm buzzer. It is an internal structure figure which shows the transition state of operation | movement of a latch part when it changes from the accommodation state of a sheet | seat to a forward-turned state. It is a flowchart which shows the control procedure of the operation | movement from the accommodation state of a sheet | seat to a forward-turned state.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Vehicle 11 Car interior 12 Floor 13 Front seat 14 1st rear seat 15 2nd rear seat 21 Rear seat cushion 22 Left seat back 23 Right seat back 42L, 42R Reclining mechanism part 43L, 43R Reclining lock actuator part 44L, 44R Cushion lock mechanism part 45 Storage unit mechanism

Claims (1)

Includes a seat back having first and second seat back that is separated into right and left, and a seat provided rotatably via a rotating shaft the seat back to the seat cushion, and the seat back to the seat cushion superposing the sheet was allowed to swing vehicle automatic rotation accommodating sheet system der be housed in the floor of the vehicle body recess I,
First and second recliner mechanism for fixing the standing position or before falling posture relative to the first and second respectively said seat cushion and seat back,
First and second reclining lock actuator parts for releasing the standing posture of the seat back fixed by the first and second reclining mechanism parts;
A seat swing mechanism for storing the seat cushion and the seat back in a floor storage recess of the vehicle body;
With
The first reclining mechanism unit includes a forward tilt detection switch that detects that the first seat back is tilted forward to a predetermined forward tilt position, and the first tilt is overlapped with the seat cushion and the forward tilt is performed. A first lock detection switch for detecting that the posture is fixed;
The second reclining mechanism has a second lock detection switch that detects that the second seat back is overlapped with the seat cushion and is fixed in the forwardly tilted posture,
And a control means for operating the first and second reclining lock actuator sections and the seat swing mechanism section based on signals from the forward tilt detection switch and the first and second lock detection switches,
The control means operates the second reclining lock actuator unit based on a signal from the forward tilt detection switch, and the seat swing mechanism based on two signals from the first and second lock detection switches. automatic rotation accommodating sheet system for a vehicle, wherein the benzalkonium actuate the parts.

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