JP4105735B2 - Seat rotating device and vehicle equipped with the seat rotating device - Google Patents

Description

  The present invention relates to a seat rotation device and a vehicle including the seat rotation device, and in particular, a seat rotation device that allows a driver to easily grasp a rear visual recognition device in the field of view by making the seat rotatable relative to a vehicle body and the seat. The present invention relates to a vehicle provided with a rotating device.

  In general, a rear view device such as a door mirror or a fender mirror is provided in an automobile so that the driver can view the rear of the vehicle while facing the front of the vehicle. For example, Japanese Patent Laid-Open No. 2005-112018 discloses a door mirror 5 including a door mirror body 7 having a body mirror 11 that projects the rear of the vehicle body 1 as a mirror image, and a door mirror base 6 that supports the door mirror body 7 on the front door 3. Is disclosed.

By the way, in the past, fender mirrors were mounted on most automobiles on the market. However, in recent years, automobiles equipped with door mirrors instead of fender mirrors have become the mainstream in terms of deregulation and design. At present, there are almost no cars that have a fender mirror as an option.
Japanese Patent Laid-Open No. 2005-112018

  However, comparing the door mirror and the fender mirror in terms of visibility, the door mirror is provided closer to the driver than the fender mirror, so when viewing the rear of the vehicle with the door mirror, it is larger than in the case of the fender mirror. There was a problem that it was impossible to capture the field of view without moving the line of sight. This has been a major obstacle to driving the vehicle for the disabled with a narrower field of view than the healthy person.

  The present invention has been made in order to solve the above-described problems. A seat rotation device and a seat rotation device that can make the seat rotatable with respect to the vehicle body so that the driver can easily grasp the rear viewing device in the field of view. It aims at providing the vehicle provided with the apparatus.

In order to solve this object, a seat rotation device according to claim 1 is provided with a seat on which a driver is seated, a vehicle body that supports the seat, and a vehicle that is disposed on the vehicle body so that the driver can visually recognize the rear of the vehicle body. It is mounted on a vehicle having a pair of left and right rear viewing devices, and is provided between the seat and the vehicle body, and rotates the seat relative to the vehicle body, and is connected to the vehicle body side. that the vehicle body-side coupling means, before Symbol seat side connected to the seat while being connected to the seat side is rotatably supported on the vehicle body side coupling means to face in either direction of the right and left pair of rear-view device And means for applying a driving force to the seat side connecting means to rotate the seat relative to the vehicle body, and determining whether there is a request from the driver to rotate the seat relative to the vehicle body Rotation request And the rotation request determination means, when the driver determines that there is a request to rotate the seat relative to the vehicle body, the rotation drive means is driven to control the seat relative to the vehicle body. Control means for adjusting the relative angle of the seat to the vehicle body by rotating, angle detection means for detecting the relative angle of the seat to the vehicle body adjusted by the control means, and the adjustment adjusted by the control means When it is determined that there is an instruction to store a relative angle of the seat with respect to the vehicle body from the driver and an instruction to store a relative angle of the seat with respect to the vehicle body from the driver. A restoring angle storage means for storing the angle detected by the angle detection means, and a relative angle of the seat to the vehicle body from the driver And a restoration request judging means for judging whether or not there is a request to restore the angle stored in the restoration angle storage means, the control means from the driver to the vehicle body of the seat by the restoration request judging means When it is determined that there is a request to restore the relative angle to the angle stored in the restoration angle storage unit, the rotation driving unit is driven and controlled to rotate the seat relative to the vehicle body. The relative angle with respect to the vehicle body is adjusted to the angle stored in the restoration angle storage means .

  According to a second aspect of the present invention, there is provided the seat rotation device according to the first aspect, further comprising an angle range regulating means for regulating a relative angle of the seat to the vehicle body within a predetermined angular range.

Seat rotating apparatus according to claim 3, wherein, in the seat rotating apparatus according to claim 1 or 2, wherein the vehicle for notifying the diversion of the vehicle to other vehicles, are operated in the left and right respectively by the driver A winker operation state detection unit that includes a winker and detects left and right operation states of the winker, and a winker that determines whether the winker is operated left or right based on a detection result of the winker operation state detection unit Operation state determination means, left turn signal angle storage means for storing a relative angle of the seat with respect to the vehicle body when the turn signal is operated to the left, and the seat of the seat when the turn signal is operated to the right Right turn signal angle storage means for storing a relative angle with respect to the vehicle body, and the control means determines the turn signal operation state determination. If the winker is judged to be operated to the left by means before Symbol wherein a relative angle with respect to the body of the seat and the rotary drive means controls and drives the seat by causing relative rotation with respect to the vehicle body while adjusting the angle stored in the left winker angle storage means, wherein the turn signal when the winker is determined to be operated in the right by the operation state determination unit, said seat front Symbol rotation driving means controls and drives The relative angle of the seat to the vehicle body is adjusted to the angle stored in the right turn signal angle storage means .

4. seat rotating apparatus according is the seat rotating apparatus according to claim 3, wherein, when the winker is determined not to be operated by the turn signal operating state determination means, before Symbol rotation drive The relative angle of the seat with respect to the vehicle body is adjusted to the angle stored in the restoration angle storage means by drivingly controlling the means and rotating the seat relative to the vehicle body .

A vehicle according to a fifth aspect includes the seat rotation device according to any one of the first to fourth aspects.

According to the seat rotating device of the first aspect, the vehicle body side coupling means is coupled to the vehicle body, and the seat side coupling means is coupled to the seat. Then, the seat-side coupling means is rotatably supported on the vehicle body side coupling means to face in either direction of the seat a pair of left and right rear-view device. Further, when the rotation request determination means determines that the driver has requested to rotate the seat relative to the vehicle body, the control means drives the rotation drive means to rotate the seat relative to the vehicle body. The relative angle of the seat to the car body is adjusted. Thereby, since the driver can set the relative angle of the seat to the vehicle body to a desired angle, there is an effect that the rear visual recognition device can be easily captured in the driver's field of view.

According to the seat rotating device of the first aspect, the angle detection means for detecting the relative angle of the seat adjusted by the control means with respect to the vehicle body, and the relative angle of the seat adjusted by the control means with respect to the vehicle body from the driver. Means for determining whether there is an instruction to memorize, and when it is judged that there is an instruction to memorize the relative angle of the seat to the vehicle body from the driver, the angle detected by the angle detecting means is restored. Stored in the angle storage means. The control means drives and controls the rotation drive means when it is determined by the restoration request judgment means that the driver has requested to restore the relative angle of the seat to the vehicle body to the angle stored in the restoration angle storage means. By rotating the seat relative to the vehicle body, the relative angle of the seat to the vehicle body is adjusted to the angle stored in the restoration angle storage means. Accordingly, there is an effect that the driver's desired posture can be repeatedly reproduced according to the driver's request.

According to the seat rotating apparatus according to claim 2, in addition to the effects of the seat rotating apparatus according to claim 1, since the relative angle with respect to the vehicle body of the seat by angular range limiting means is restricted within a predetermined angular range,必 There is an effect that it is possible to supplementarily prevent the seat from rotating relative to the vehicle body more than necessary, which may interfere with driving.

According to the seat rotation device of the third aspect , in addition to the effect produced by the seat rotation device according to the first or second aspect , the control means determines that the winker is operated to the left by the winker operation state determination means. If the, while adjusting the angle of the relative angle stored in the left winker angle storage means relative to the vehicle body in the seat by causing relative rotation seat to the vehicle body by driving and controlling the rotation driving means, blinker operating state determination means blinker when it is judged to be operated to the right, it is stored in the right winker angle storage unit a relative angle with respect to the vehicle body in the seat by causing relative rotation seat to the vehicle body by driving and controlling the rotation driving means by Adjust the angle . Thereby, when the driver operates the winker, there is an effect that the seat can be rotated relative to the vehicle body in conjunction with the operation of the winker.

According to the seat rotating apparatus according to claim 4, in addition to the effects of the seat rotating apparatus according to claim 3, wherein the control means, when it is determined that the turn signal is not being operated by the turn signal operating state determination means, times The relative driving angle of the seat relative to the vehicle body is adjusted to the angle stored in the restoration angle storage means by drivingly controlling the rolling drive means and rotating the seat relative to the vehicle body. As a result, even when the seat is rotated relative to the vehicle body in conjunction with the operation of the turn signal by the driver, the driver can be restored to the posture before the turn signal is operated in accordance with the release of the turn signal operation. There is an effect that can be done.

According to the vehicle of the fifth aspect , the same effect as the seat rotating device according to any one of the first to fourth aspects can be obtained.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of the invention will be described with reference to the accompanying drawings. FIG. 1A is a schematic diagram schematically showing a vehicle V on which the seat rotation device 1 according to the first embodiment of the present invention is mounted. FIG. 1B is an exploded view of the seat rotation device 1. It is a perspective view. FIG. 1A shows a state in which the driver P is seated on the seat S, and the seat S is rotated with respect to the vehicle body B so that the driver P faces the left door mirror Ml. The state is shown. In FIG. 1B, a seat S and a seat adjuster A for fixing the seat rotation device 1 are shown.

  First, a schematic configuration of the vehicle V will be described with reference to FIG. As shown in FIG. 1A, a vehicle V includes a seat S, a vehicle body B that supports the seat S, and a pair of left and right door mirrors M (a left door mirror Ml and a right door mirror) disposed on the vehicle body B. Mr). In the vehicle V, when the driver P operates the instruction switch device 79 and the turn signal W, the seat rotation device 1 rotates the seat S with respect to the vehicle body B so that the door mirror M is easily captured in the driver P's field of view. It is configured to be able to.

  As shown in FIG. 1A, the seat S is a seat for a driver P who operates the handle H to sit. As shown in FIG. 1B, the seat adjuster is provided via the seat rotating device 1. Connected to A.

  The seat adjuster A is a device that slides the seat S in the front-rear direction of the vehicle body B in order to adjust the distance between the driver P and the handle H, and is fixed to the vehicle body B by bolts (not shown). Thereby, the seat S is supported by the vehicle body B via the seat rotating device 1.

  The pair of left and right door mirrors M (the left door mirror Ml and the right door mirror Mr) are arranged on the vehicle rear side (the lower side in FIG. 1A) while the driver P is facing the vehicle front side (the upper side in FIG. 1A). 1 is a rear viewing device for visually recognizing the rear side of the vehicle V, and includes a mirror that reflects the rear of the vehicle V as a mirror image. As shown in FIG. a) It is arranged on each of the upper left and right sides).

  Next, a detailed configuration of the seat rotation device 1 will be described with reference to FIGS. Fig.2 (a) is a top view of the seat rotation apparatus 1, and FIG.2 (b) is sectional drawing of the seat rotation apparatus 1 in the IIb-IIb line | wire of Fig.2 (a). In FIG. 2A, for easy understanding, a part of the upper base member 2 is seen through and the seat S is illustrated using a two-dot chain line. Further, in FIG. 2 (a), the tooth tip circles of the seat side connecting member 11 and the pinion 7 are indicated by solid lines, the pitch circles are indicated by two-dot chain lines, the root circles are indicated by thin lines, and the tooth profile is not shown. 2B, the tooth tip line of the seat side connecting member 11 and the pinion 7 is indicated by a solid line, the tooth bottom line is indicated by a thin line, and the pitch line is not shown.

  As described above, the seat rotating device 1 is a device for rotating the seat S with respect to the vehicle body B. As shown in FIG. 1B, the upper base member 2 fixed to the seat S and the seat adjuster. A lower base member 3 fixed to A, a rotating mechanism 10 disposed between the upper base member 2 and the lower base member 3, a motor 4 for applying a rotational driving force to the rotating mechanism 10, and the motor 4 is mainly provided with a control device 70 that drives and controls the motor 4.

  The upper base member 2 is a member for connecting the rotation mechanism 10 to the seat S, and is formed in a flat plate shape from a metal material as shown in FIG. As shown in FIG. 1B, the upper base member 2 has four attachment holes 2a to 2d and four connection holes 2e to 2h formed therethrough.

  The four mounting holes 2a to 2d are holes through which four bolts (not shown) are inserted in order to fix the upper base member 2 to the seat S, and are thread grooves (see FIG. (Not shown), respectively. The upper base member 2 is fixed to the seat S by inserting four bolts into the mounting holes 2a to 2d and screwing them into thread grooves provided on the bottom surface of the seat S.

  The four connection holes 2e to 2h are holes through which four bolts (not shown) are inserted in order to connect the upper base member 2 and the rotation mechanism 10, and as shown in FIG. On the circumference centering on the central axis O of the seat surface Su of the seat S, holes are formed at intervals of 90 °. The four bolts are respectively inserted into the connecting holes 2e to 2h and screwed into screw grooves 11a to 11d (see FIG. 2A) of the seat side connecting member 11 described later, whereby the upper base member 2 and The rotation mechanism 10 is connected.

  The lower base member 3 is a member for connecting the rotation mechanism 10 to the sheet adjuster A, and is formed in a flat plate shape from a metal material as shown in FIG. As shown in FIG. 1B, the lower base member 3 is formed with four attachment holes 3a to 3d and four connection holes 3e to 3h.

  The four mounting holes 3a to 3d are holes through which four bolts (not shown) are inserted in order to fix the lower base member 3 to the seat adjuster A, and are thread grooves provided on the upper surface of the seat adjuster A. (Not shown) are respectively drilled. The lower base member 3 is fixed to the seat adjuster A by inserting four bolts into the mounting holes 3a to 3d and screwing them into thread grooves provided on the upper surface of the seat adjuster A, respectively.

  The four connecting holes 3e to 3h are holes through which four bolts (not shown) are inserted in order to connect the lower base member 3 and the rotating mechanism 10, and as shown in FIG. On the circumference centering on the central axis O of the seat surface Su of the seat S, holes are formed at intervals of 90 °. Four bolts are respectively inserted into the connecting holes 3e to 3h, and screwed into thread grooves 12a to 12d (see FIG. 2A) of the vehicle body side connecting member 12 described later, whereby the lower base member 3 and The rotation mechanism 10 is connected.

  The rotation mechanism 10 is a mechanism unit that rotatably connects the upper base member 2 to the lower base member 3, and is connected to the upper base member 2 as shown in FIGS. 2 (a) and 2 (b). The seat side connecting member 11, the vehicle body side connecting member 12 connected to the lower base member 3, and a bearing 13 are mainly provided.

  The seat-side connecting member 11 is a spur gear to which the rotational driving force of the motor 4 is input, and four screw grooves 11a to 11d are formed as shown in FIG.

  As described above, the four screw grooves 11a to 11d are female screws that respectively screw four bolts in order to connect the upper base member 2 and the rotating mechanism 10, as shown in FIG. When the rotation mechanism 10 is connected to the upper base member 2, it corresponds to the four connection holes 2 e to 2 h of the upper base member 2 so that the central axis O of the seating surface Su of the seat S becomes the rotation axis of the rotation mechanism 10. And each is screwed.

  Further, as shown in FIGS. 2A and 2B, a scale 6 is disposed on the inner peripheral side surface of the seat side connecting member 11. The scale 6 is a scale for detecting a rotational displacement amount of the seat S with respect to the vehicle body B by a sensor 5 to be described later. The scale 6 is made of a magnetic material and has lattice stripes (not shown) formed on the surface thereof. .

  The vehicle body side connecting member 12 is a member that supports the seat side connecting member 11 via a bearing 13, and is formed into a cylindrical body from a metal material as shown in FIGS. 2 (a) and 2 (b). Yes. As shown in FIG. 2A, four screw grooves 12 a to 12 d are formed in the vehicle body side connecting member 12.

  As described above, the four screw grooves 12a to 12d are female screws that respectively screw four bolts in order to connect the lower base member 3 and the rotation mechanism 10, as shown in FIG. When the rotation mechanism 10 is connected to the lower base member 3, it corresponds to the four connection holes 3 e to 3 h of the lower base member 3 so that the central axis O of the seat surface Su of the seat S becomes the rotation axis of the rotation mechanism 10. And each is screwed.

  As shown in FIG. 2B, a sensor 5 is disposed on the upper surface side (upper side in FIG. 2B) of the vehicle body side connecting member 12. The sensor 5 is configured as a magnetic sensor that magnetically reads lattice fringes formed on the scale 6. The rotational displacement amount of the seat S relative to the vehicle body B can be detected by magnetically reading the lattice stripes formed on the scale 6 by the sensor 5.

  The bearing 13 is a bearing that couples the seat side coupling member 11 and the vehicle body side coupling member 12, and is fitted into the seat side coupling member 11 as shown in FIG. Is externally fitted. Thereby, the seat side connection member 11 can be rotated with respect to the vehicle body side connection member 12.

  According to the rotating mechanism 10 configured as described above, the seat side connecting member 11 is supported by the vehicle body side connecting member 12 via the bearing 13, and the seat side connecting member 11 is supported by the bearing 13 on the vehicle body side connecting member. Therefore, the upper base member 2 connected to the seat side connecting member 11 can be rotated relative to the lower base member 3 connected to the vehicle body side connecting member 12. Therefore, since the seat S fixed to the upper base member 2 can be rotated with respect to the seat adjuster A fixed to the lower base member 3, the seat S can be rotated with respect to the vehicle body B.

  In this case, since the rotation mechanism 10 is connected to the upper base member 2 and the lower base member 3 so that the central axis O of the seating surface Su of the seat S becomes the rotation axis of the rotation mechanism 10, The seat S can be rotated around the central axis O of the seating surface Su. Therefore, the seat S can be rotated in a stable state without being eccentric with respect to the vehicle body B.

  The motor 4 is a motor that generates a rotational driving force, and is disposed on the upper surface side (upper side in FIG. 2B) of the lower base member 3, as shown in FIG. 2B. As shown in FIG. 2B, a pinion 7 is disposed on the drive shaft 4a of the motor 4, and the pinion 7 and the tooth portion 11e of the seat side connecting member 11 mesh with each other to rotate. A rotational driving force can be applied to the mechanism 10.

  The control device 70 is a control device for controlling each part of the seat rotation device 1, and is disposed on the lower surface side (lower side in FIG. 2B) of the lower base member 3, as shown in FIG. 2B. Has been. For example, when the driver P operates the instruction switch device 79 (see FIG. 1A), the control device 70 performs drive control of the motor 4 according to the operation.

  Next, the electrical configuration of the seat rotation device 1 will be described with reference to FIG. FIG. 3 is a block diagram showing an electrical configuration of the seat rotation device 1. As shown in FIG. 3, the control device 70 includes a CPU 71, a ROM 72, a RAM 73, and an EEPROM 74, and these are connected to an input / output port 76 via a bus line 75. The input / output port 76 is connected to a plurality of devices such as a rotary drive device 77.

  The CPU 71 is an arithmetic unit that controls each unit connected by the bus line 75. The ROM 72 is a non-rewritable nonvolatile memory storing a control program (for example, a flowchart of the seat rotation process shown in FIG. 5) and fixed value data executed by the CPU 71, and the RAM 73 is an execution of the control program. It is a memory for storing various work data, flags, etc. sometimes rewritable.

  The EEPROM 74 is a memory for storing various work data and flags at the time of execution of the control program in a rewritable state, and is a non-volatile memory capable of retaining the contents even after the power is turned off. is there. The EEPROM 74 is provided with various memories such as an initial angle memory 74a, a current angle memory 74b, a restoration angle memory 74c, a left turn signal angle memory 74d, a right turn signal angle memory 74e, and an angle range restriction memory 74f.

  The initial angle memory 74a is a memory that stores a relative angle of the seat S with respect to the vehicle body B in a state where the seat S faces the front of the vehicle body B. In the present embodiment, “0” is stored in advance in the initial angle memory 74a. The relative angle of the seat S with respect to the vehicle body B is detected by an angle detection device 78 described later.

  The current angle memory 74b is a memory for storing the relative angle of the seat S to the vehicle body B at the present time, and whether the seat S is rotated in the right or left direction from the state facing the front of the vehicle body B is positive or negative. Differentiate and memorize by issue. For example, when “0” is stored in the initial angle memory 74a, “−10” is stored when the seat S is rotated 10 ° to the left from the state of facing the front of the vehicle body B.

  The restoration angle memory 74c is a memory that stores the relative angle of the seat S with respect to the vehicle body B when the restoration angle storage switch 79c is pressed by the driver P. Similarly to the current angle memory 74b, the restoration angle memory 74c stores the seat S. It is distinguished and memorized by the positive / negative sign how much it is rotated in the left or right direction from the state of facing the front of the vehicle body B.

  The left turn signal angle memory 74d is a memory that stores the relative angle of the seat S with respect to the vehicle body B when the left turn signal angle storage switch 79d is pressed by the driver P. Like the current angle memory 74b, How much the seat S is rotated in the left or right direction from the state in which the seat S faces the front of the vehicle body B is distinguished and stored by a positive / negative sign.

  The right turn signal angle memory 74e is a memory that stores the relative angle of the seat S with respect to the vehicle body B when the right turn signal angle storage switch 79e is pressed by the driver P. Like the current angle memory 74b, How much the seat S is rotated in the left or right direction from the state in which the seat S faces the front of the vehicle body B is distinguished and stored by a positive / negative sign.

  The angle range regulation memory 74f is a memory that stores a relative angle of the seat S that can rotate with respect to the vehicle body B with respect to the vehicle body B. The CPU 71 stops the drive control of the motor 4 when the angle stored in the current angle memory 74b exceeds the angle stored in the angle range restriction memory 74f. Thereby, the relative angle with respect to the vehicle body B of the seat S in which the seat S can rotate with respect to the vehicle body B is regulated within a predetermined angle range. In the present embodiment, the angle range regulation memory is regulated such that the range from the state in which the seat S faces the front of the vehicle body B to the state in which the seat S is rotated by 15 ° with respect to either the left or right direction is regulated as a rotatable angle range. “15” is stored in advance in 74f.

  The rotation drive device 77 is a device having both the role of rotating the rotation mechanism 10 and the role of fixing the rotation mechanism 10 so as not to rotate. The motor 4 that applies a rotation driving force to the rotation mechanism 10 (FIG. 2B). )), And a drive circuit and a drive source (both not shown) for driving and controlling the motor 4 based on a command from the CPU 71. The CPU 71 rotates the rotation mechanism 10 by rotating the motor 4, while fixing the rotation mechanism 10 so as not to rotate by stopping the driving of the motor 4.

  The angle detection device 78 is a device for detecting the relative angle of the seat S with respect to the vehicle body B and outputting the detection result to the CPU 71. The sensor 5 (see FIG. 2B) And a processing circuit (not shown) that processes the detection result of the sensor 5 and outputs the result to the CPU 71.

  In the present embodiment, as described above, the sensor 5 is configured as a magnetic sensor that magnetically reads the checkered stripes of the scale 6 (a scale proportional to the rotational displacement amount of the seat S with respect to the vehicle body B). By calculating the center angle of the arc having the detection result input from the angle detection device 78 as a string, the relative angular displacement amount of the seat S with respect to the vehicle body B can be obtained. Then, the relative angle displacement amount of the seat S with respect to the vehicle body B is added to or subtracted from the angle stored in the current angle memory 74b to obtain the relative angle of the seat S with respect to the vehicle body B at the present time. it can. The CPU 71 adds the relative angle displacement of the seat S to the vehicle body B to the angle stored in the current angle memory 74b, or the current relative angle of the seat S to the vehicle body B, obtained each time. The current angle memory 74b is written.

  The instruction switch device 79 is a device operated by the driver P, and includes a rotation direction switching switch 79a, a rotation drive switch 79b, a restoration angle storage switch 79c, a left turn signal angle storage switch 79d, a right turn signal angle storage switch 79e, and a restoration switch. Various switches such as 79f and turn signal interlocking switch 79g are provided.

  The rotation direction switching switch 79a is a switch for instructing whether to rotate the seat S to the left or the right with respect to the vehicle body B. The CPU 71 determines that the motor 4 is driven to rotate, for example, clockwise when the rotation direction switch 79a is switched to the position for rotating the seat S to the left with respect to the vehicle body B. It is determined that the motor 4 is driven to rotate counterclockwise when the rotation position is switched.

  The rotation drive switch 79b is a switch for instructing to rotate the seat S with respect to the vehicle body B. When the rotation drive switch 79b is pressed, the CPU 71 drives the motor 4 to rotate based on the switching state (position) of the rotation direction switch 79a.

  The restoration angle storage switch 79c is a switch for instructing to store in the restoration angle memory 74c the relative angle of the seat S to the vehicle body B at that time. When the restoration angle storage switch 79c is pressed, the CPU 71 reads the angle currently stored in the angle memory 74b and writes the read angle into the restoration angle memory 74c.

  The left turn signal angle storage switch 79d is a switch for instructing to store the relative angle of the seat S with respect to the vehicle body B at that time in the left turn signal angle memory 74d. When the left turn signal angle storage switch 79d is pressed, the CPU 71 reads the angle stored in the current angle memory 74b and writes the read angle in the left turn signal angle memory 74d.

  The right turn signal angle storage switch 79e is a switch for instructing the right turn signal angle memory 74e to store the relative angle of the seat S to the vehicle body B at that time. When the right turn signal angle storage switch 79e is pressed, the CPU 71 reads the angle stored in the current angle memory 74b and writes the read angle in the right turn signal angle memory 74e.

  The restoration switch 79f is a switch for instructing the restoration of the seat S so that the relative angle of the seat S with respect to the vehicle body B becomes the angle stored in the restoration angle memory 74c. When the restoration switch 79f is pressed, the CPU 71 rotates the motor 4 until the relative angle of the seat S with respect to the vehicle body B reaches the angle stored in the restoration angle memory 74c.

  The winker interlocking switch 79g is a switch for instructing whether or not to rotate the seat S relative to the vehicle body B in conjunction with the winker W. The CPU 71 determines that the seat S is rotated with respect to the vehicle body B in conjunction with the winker W when the winker interlock switch 79g is turned on, and determines that the seat S is not interlocked with the winker W when it is turned off.

  The blinker interlocking switch 79g is configured by a lock type switch that can maintain an on state and an off state. For example, when the driver P switches from the off state to the on state, the on state is maintained until the next switching to the off state, and the on / off port 76 is maintained in the on state.

  The LCD 80 is a device for displaying the angles stored in the restoration angle memory 74c, the left turn signal angle memory 74d, and the right turn signal angle memory 74e, and the angle stored in the current angle memory 74b.

  The winker operation state detection device 81 is a device for detecting the left and right operation states (operation and release) of the winker W and outputting the detection result to the CPU 71, and detects the left and right operation states of the winker W. And a processing circuit (not shown) that processes the detection result of the sensor 81a and outputs the result to the CPU 71. In the present embodiment, the sensor 81a is configured as a current sensor that detects currents generated in accordance with the left or right operation of the winker W. Thereby, based on the detection result input from the turn signal operation state detection device 81, the CPU 71 determines whether or not the turn signal W is operated and whether the turn signal W is operated left or is operated right. You can know if you are.

  As another input / output device 82 shown in FIG. 3, for example, a relative angle with respect to the vehicle body B of the seat S is stored in the restoration angle memory 74c, the left turn signal angle memory 74d, and the right turn signal angle memory 74e. An input device (not shown) for inputting is exemplified.

  Next, processing executed by the control device 70 will be described with reference to FIGS. FIG. 4A is a flowchart showing the main process, and FIG. 4B is a flowchart showing the angle setting process. FIG. 5 is a flowchart showing the seat rotation process.

  First, the main process will be described with reference to FIG. The main process shown in FIG. 4A is a process repeatedly executed by the CPU 71 while the control device 70 is powered on. Regarding the main processing, the CPU 71 first displays the relative angles of the seat S with respect to the vehicle body B stored in the current angle memory 74b, the restored angle memory 74c, the left turn signal angle memory 74d, and the right turn signal angle memory 74e on the LCD 80 ( S1) Next, an angle setting process (S2) is executed. Here, the angle setting process (S2) will be described with reference to the flowchart of FIG.

  In the angle setting process (S2) shown in FIG. 4B, the relative angle of the seat S with respect to the vehicle body B is stored in the restoration angle memory 74c provided in the EEPROM 74, the left turn signal angle memory 74d, or the right turn signal angle storage memory 74e. This is a process for storing in advance.

  Regarding the angle setting process (S2), the CPU 71 first determines whether the driver P has pressed either the restoration angle storage switch 79c, the left turn signal angle storage switch 79d, or the right turn signal storage switch 79e ( S11). As a result, if it is determined that neither the restoration angle storage switch 79c, the left turn signal angle storage switch 79d or the right turn signal storage switch 79e is pressed (S11: No), this angle setting process (S2) Exit.

  On the other hand, when it is determined by the driver P that the restoration angle storage switch 79c, or either the left turn signal angle storage switch 79d or the right turn signal storage switch 79e is pressed by the driver P (S11: Yes). Next, the angle stored in the current angle memory 74b is read (S12), and the read angle is stored in any of the angle memories 74c to 74e corresponding to the angle storage switches 79c to 79e pressed by the driver P. Write in (S13). That is, when the restoration angle storage switch 79c is pressed by the driver P, it is stored in the recovery angle memory 74c, and when the left turn signal angle storage switch 79d is pressed, it is stored in the left turn signal angle memory 74d and the right turn signal angle storage switch 79e. When is pressed, the angle setting process (S2) is terminated after writing in the right turn signal angle memory 74e.

  Thus, the desired posture of the driver P (relative angle of the seat S with respect to the vehicle body B) can be stored in advance in the restoration angle memory 74c, the left turn signal angle memory 74d, and the right turn signal angle memory 74e, respectively. Convenience can be improved.

  Returning to the flowchart shown in FIG. After the angle setting process (S2) is completed, the seat rotation process (S3) is executed. Here, the seat rotation process (S3) will be described with reference to the flowchart of FIG.

  The seat rotation process (S3) shown in FIG. 5 is a process for rotating the seat S relative to the vehicle body B. Regarding the seat rotation process (S3), the CPU 71 first determines whether or not the rotation drive switch 79b is pressed by the driver P (S21). As a result, when it is determined that the rotation drive switch 79b is pressed (S21: Yes), the motor 4 is then rotated and driven by a predetermined amount based on the switching state (position) of the rotation direction switch 79a. (S22), the process returns to S21. Accordingly, the driver P does not need to rotate the seat S with respect to the vehicle body B by, for example, leg power, so that the burden on the driver P can be reduced accordingly. In the present embodiment, the motor 4 is rotationally driven so that the relative angle of the seat S with respect to the vehicle body B changes by 1 ° as the predetermined amount.

  On the other hand, if it is determined that the rotation drive switch 79b is not pressed as a result of the process of S21 (S21: No), the processes after S23 are executed. In the processing after S23, it is first determined whether or not the restoration switch 79f has been pressed by the driver P (S23). As a result, when it is determined that the restoration switch 79f has not been pressed (S23: No), the process proceeds to S26.

  On the other hand, if it is determined that the restoration switch 79f has been pressed as a result of the processing in S23 (S23: Yes), it is then determined whether or not the angle is stored in the restoration angle memory 74c (S24). As a result, when it is determined that the angle is not stored in the restoration angle memory 74c (S24: No), the process proceeds to S26.

  On the other hand, if it is determined as a result of the processing of S24 that the angle is stored in the restoration angle memory 74c (S24: Yes), then the motor 4 is set with the angle stored in the restoration angle memory 74c as a target value. Is driven to rotate (S25), and the processes after S26 are executed. Thereby, according to the request | requirement of the driver | operator P, the driver | operator's P desired attitude | position (relative angle with respect to the vehicle body B of the seat S) can be reproduced repeatedly.

  In the processing after S26, it is first determined whether or not the winker interlocking switch 79g is pressed by the driver P (S26). As a result, if it is determined that the turn signal interlocking switch 79g is not pressed (S26: No), the seat rotation process (S3) is terminated.

  On the other hand, if it is determined as a result of the processing of S26 that the winker interlocking switch 79g is pressed (S26: Yes), it is then determined whether or not the winker W is operated by the winker operation state detection device 81. Judgment is made (S27). As a result, when it is determined that the winker W is operated to the left or right (S27: Yes), the winker angle memories 74d and 74e corresponding to the left or right where the winker W is operated are then stored. It is determined whether or not the angle is stored (S28). That is, it is determined whether or not the angle is stored in the left turn signal angle memory 74d when the turn signal W is operated to the left, and in the right turn signal angle memory 74e when it is operated to the right. As a result, when it is determined that the angle is not stored in each of the winker angle memories 74d and 74e corresponding to the left or right where the winker W is operated (S28: No), this seat rotation process (S3) Exit.

  On the other hand, as a result of the process of S28, when it is determined that the angle is stored in each of the winker angle memories 74d and 74e corresponding to the left or right where the winker W is operated (S28: Yes), then, The motor 4 is rotationally driven with the angles stored in the winker angle memories 74d and 74e as target values (S29). That is, when the turn signal W is operated to the left, the left turn signal angle memory 74d is rotated, and when the turn signal W is operated to the right, the right turn signal angle memory 74e is driven to rotate the motor 4 as a target value. The rotation process (S3) ends. Thereby, when the driver P operates the winker W, the seat S can be rotated with respect to the vehicle body B in conjunction with the operation of the winker W.

  On the other hand, if it is determined that the winker W is not operated as a result of the processing of S27 (S27: No), it is then determined whether or not the angle is stored in the restoration angle memory 74c (S30). As a result, if it is determined that the angle is stored in the restoration angle memory 74c (S30: Yes), then the motor 4 is rotationally driven with the angle stored in the restoration angle memory 74c as a target value ( S31), the seat rotation process (S3) is terminated.

  On the other hand, if it is determined that the angle is not stored in the restoration angle memory 74c (S30: No) as a result of the process of S30, then the motor 4 is set with the angle stored in the initial angle memory 74a as a target value. Is rotated (S32), and the seat rotation process (S3) is terminated. Thus, even when the seat S is rotated with respect to the vehicle body B in conjunction with the operation of the winker W by the driver P, before the operation of the winker W, the driver P is operated before the winker W is operated. (The relative angle of the seat S with respect to the vehicle body B).

  As described above, according to the seat rotation device 1 in the present embodiment, when the motor 4 is driven to rotate, the rotation mechanism 10 rotates, so that the seat S can rotate with respect to the vehicle body B. The driver P can turn his posture toward the door mirror M (the left door mirror Ml or the right door mirror Mr). Therefore, the door mirror M (the left door mirror Ml or the right door mirror Mr) can be easily captured in the field of view of the driver P.

  On the other hand, when the driving of the motor 4 is stopped, the rotation mechanism 10 is fixed so as not to rotate and the seat S is fixed so as not to rotate relative to the vehicle body B as described above. Therefore, since it is not necessary for the driver P to step on and stop the rotation of the seat S relative to the vehicle body B, the burden on the driver P can be reduced.

  Further, by rotating or fixing the rotation mechanism 10 by the motor 4, the seat S can be freely rotated or fixed with respect to the vehicle body B, so that the driver P can perform a desired posture (the vehicle body B of the seat S). The vehicle V can be driven at a relative angle). Thereby, for example, even when a disabled person with a narrower field of view than a healthy person drives the vehicle V, it is possible to drive in a posture (relative angle of the seat S with respect to the vehicle body B) in which the left and right visual field balance is equal. Become. Therefore, the anxiety in driving the vehicle V can be eliminated.

  Furthermore, since the relative angle of the seat S with respect to the vehicle body B is regulated within a predetermined angle range by the angle range regulation memory 74f, for example, even when the rotary drive device 77 breaks down, the seat S rotates more than necessary. By doing so, it is possible to supplementarily prevent the risk of hindering driving.

In the flowchart (seat rotation process) shown in FIG. 5, the processing step S21 is a rotation request determination means according to claim 1, wherein the processing at S23 as restoration request determination means according to claim 1 is claimed in claim 3, wherein As the turn signal operation state determination means, the processing of S27 corresponds to each.

  Next, with reference to FIG. 6, the seat rotation apparatus 101 in 2nd Embodiment is demonstrated. FIG. 6 is a top view of the seat rotation device 101 according to the second embodiment. In the seat rotation device 1 according to the first embodiment, the case where the rotation mechanism 10 is rotated by rotating the motor 4 to rotate the seat S with respect to the vehicle body B has been described, but the seat rotation according to the second embodiment is performed. The device 101 is configured such that the driver P himself / herself rotates the rotating mechanism 110 with, for example, leg force to rotate the seat S relative to the vehicle body B. In addition, about the part same as 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  The seat rotation device 101 in the second embodiment is a device that is mounted on the vehicle V and rotates the seat S of the vehicle V relative to the vehicle body B, similarly to the seat rotation device 1 in the first embodiment. As shown in FIG. 6, the upper base member 2, the lower base member 3, the rotating mechanism 110 disposed between the upper base member 2 and the lower base member 3, and the rotating mechanism 110 are connected. The return member 102 and two angle range restricting members 103 are mainly provided.

  The rotation mechanism 110 is a mechanism unit that rotatably connects the upper base member 2 to the lower base member 3. As shown in FIG. 6, the seat side connection member 111 that is connected to the upper base member 2, and the vehicle body side The connecting member 12 and the bearing 13 are mainly provided.

  The seat side connecting member 111 is a member that is rotatably supported by the vehicle body side connecting member 12 via the bearing 13, and is formed into a disk-like body from a metal material as shown in FIG. As shown in FIG. 6, the seat side coupling member 111 is formed with four screw grooves 111a to 111d, an index groove 111e, and a lever hole 111f.

  The four screw grooves 111a to 111d are female screws that respectively screw four bolts (not shown) in order to connect the upper base member 2 and the rotation mechanism 110. As shown in FIG. When 110 is connected to the upper base member 2, it corresponds to the four connection holes 2 e to 2 h of the upper base member 2 so that the central axis O of the seating surface Su of the seat S becomes the rotation axis of the rotation mechanism 110. It is threaded.

  The index groove 111e is a groove with which the retracting member 122 of the index device 120 is engaged, and as shown in FIG. As shown in FIG. 6, the index device 120 includes a main body 121, and a protruding member 122 that can be moved into and out of the main body 121 by a spring (not shown) stored in the main body 121, and the upper surface of the lower base member 3. It is arrange | positioned at the side (FIG. 6 paper surface front side). When the seat side connecting member 111 is rotated with respect to the vehicle body side connecting member 12, the retracting member 122 protrudes and retracts with respect to the main body 121, and the retracting member 122 and the index groove 111e are intermittently engaged. The relative angular displacement amount of S with respect to the vehicle body B can be determined intermittently at predetermined angular intervals. Thereby, the feeling of operation when the driver P rotates the seat S with respect to the vehicle body B can be improved.

  The lever hole 111f is a hole into which the lever 131 of the rotation fixing device 130 is inserted, and a plurality of the lever holes 111f are formed on the outer peripheral side surface of the seat side connecting member 111 as shown in FIG. As shown in FIG. 6, the rotation fixing device 130 includes a lever 131 and a holding member 132 that slidably holds the lever 131, and is disposed on the upper surface side of the lower base member 3 (the front side in FIG. 6). Has been. When the lever 131 is inserted into the lever hole 111f, the rotation of the seat side connecting member 111 with respect to the vehicle body side connecting member 12 is prohibited, while when the lever 131 is extracted from the lever hole 111f, the vehicle body of the seat side connecting member 111 is The rotation with respect to the side connection member 12 is permitted. Thereby, the seat S can be rotated or fixed with respect to the vehicle body B.

  Therefore, since it is not necessary for the driver P to step on and stop the rotation of the seat S relative to the vehicle body B, the burden on the driver P can be reduced. Further, since the seat S can be freely rotated or fixed with respect to the vehicle body B, the driver P can drive the vehicle V in a desired posture (relative angle of the seat S with respect to the vehicle body B).

  The return member 102 is a coil spring having both the role of a compression spring and the role of a tension spring. As shown in FIG. 6, both ends of the return member 102 are lower bases so that the seat S faces the front of the vehicle body B in an unloaded state. While being fixed to the member 3, the substantially center part is connected with the connection part 111g protrudingly provided by the outer peripheral side surface of the seat side connection member 111. As shown in FIG. When the seat side connecting member 111 is rotated with respect to the vehicle body side connecting member 12 from the state in which the seat S faces the front of the vehicle body B, the return member 102 expands and contracts, and the urging force is applied to the seat side connecting member 111. Therefore, the seat S can be returned to the state facing the front of the vehicle body B.

  Therefore, since the driver S does not need to rotate the seat S with respect to the vehicle body B by, for example, leg power in order to make the seat S face directly in front of the vehicle body B, it is possible to avoid the risk of hindering driving. As a result, safety can be improved.

  The angle range restricting member 103 is a member with which a stopper 111h protruding from the outer peripheral side surface of the seat side connecting member 111 comes into contact, and is formed in a rectangular shape from a metal material as shown in FIG. And the like. When the seat side connecting member 111 is rotated relative to the vehicle body side connecting member 12, the angle range control member 103 and the stopper 111h come into contact with each other, and the rotation of the seat side connecting member 111 with respect to the vehicle body side connecting member 12 is prohibited. Therefore, the relative angle of the seat S to the vehicle body B is restricted within a predetermined angle range.

  Therefore, for example, even when the rotation fixing device 130 forgets to prohibit the rotation of the seat-side connecting member 111 relative to the vehicle body-side connecting member 12, the seat S may rotate more than necessary and the driving may be hindered. Auxiliary prevention is possible. Further, since the angle range regulating member 103 is detachably fixed, the relative angle of the seat S with respect to the vehicle body B can be set flexibly according to the driver P.

  As described above, according to the seat rotation device 101 in the present embodiment, the rotation mechanism 110 rotates when the rotation fixing device 130 permits the rotation of the seat side connection member 111 with respect to the vehicle body side connection member 12. Thus, since the seat S can rotate with respect to the vehicle body B, the driver P can turn the posture toward the door mirror M (the left door mirror Ml or the right door mirror Mr). Therefore, it is possible to easily catch the mirror A (the left door mirror Ml or the right door mirror Mr) in the field of view of the driver P.

  Further, for example, the driver P himself / herself rotates the seat S with respect to the vehicle body B by leg power, so that a motor or the like for rotating the rotating mechanism 110 is not required, and parts costs and manufacturing costs can be reduced accordingly. .

  As described above, the present invention has been described based on the embodiments, but the present invention is not limited to the above embodiments, and various improvements and modifications can be made without departing from the spirit of the present invention. It can be easily guessed.

  For example, the numerical values given in the above embodiments are merely examples, and other numerical values can naturally be adopted.

  In the first embodiment, when it is determined as a result of the processing of S28 that no angle is stored in each of the winker angle memories 74d and 74e corresponding to the left or right where the winker W is operated. (S28: No), the case where the motor 4 is not rotationally driven has been described. However, the present invention is not necessarily limited to this. For example, a memory is provided in the EEPROM 74, and the seat S is mounted on the vehicle body by the angle stored in the memory. You may comprise so that it may rotate with respect to B. In this case, it is not necessary to previously store the angles in the winker angle memories 74d and 74e, so that convenience can be improved.

  In the first embodiment, the EEPROM 74 is provided with one restoration angle memory 74c, one left turn signal angle memory 74d, and one right turn signal angle memory 74e. However, the present invention is not limited to this. Instead, for example, a plurality of restoration angle memories, a left blinker angle memory, and a right blinker angle memory are provided, and a memory for storing a table for associating the plurality of restoration angle memories, the left blinker angle memory, and the right blinker angle memory. You may comprise so that it may provide. In this case, since a desired posture of the driver P (relative angle of the seat S with respect to the vehicle body B) can be stored in advance for each of a plurality of persons, convenience can be improved.

  In the first embodiment, the CPU 71 stops driving control of the motor 4 when the angle stored in the current angle memory 74b exceeds the angle stored in the angle range regulation memory 74f. In addition to this, a determination means for determining whether or not the angle currently stored in the angle memory 74b exceeds the angle stored in the angle range restriction memory 74f is provided. When it is determined that the angle currently stored in the angle memory 74b exceeds the angle stored in the angle range regulation memory 74f, the engine is started to the engine computer, for example, via another input / output device 82. It may be configured to perform a process of transmitting an instruction for prohibiting. As a result, the possibility that the seat S rotates more than necessary and hinders driving can be supplementarily prevented.

(A) is the schematic diagram which showed typically the vehicle with which the seat rotation apparatus in 1st Embodiment was mounted | worn, (b) is an exploded perspective view of a seat rotation apparatus. (A) is a top view of a seat rotation apparatus, (b) is sectional drawing of the seat rotation apparatus in the IIb-IIb line | wire of (a). It is a block diagram which shows the electric constitution of a seat rotation apparatus. (A) is a flowchart which shows a main process, (b) is a flowchart which shows an angle setting process. It is a flowchart which shows a seat rotation process. It is a top view of the seat rotation apparatus in 2nd Embodiment.

Explanation of symbols

1,101 seat rotating device 4 motor (part of the rotary drive means)
5 Sensor (part of angle detection means)
6 Scale (part of angle detection means)
11,111 Seat side connecting member (seat side connecting means)
12 Car body side connecting member (car body side connecting means)
70 Control device (control means)
74c Restoration angle memory (restoration angle storage means)
74d Left turn signal angle memory (left turn signal angle storage means)
74e Right turn signal angle memory (right turn signal angle storage means)
74f Angle range restriction memory (angle range restriction means)
77 rotary drive device (rotary drive means)
78 Angle detection device (angle detection means)
81 Blinker operation state detection device (blinker operation state detection means)
103 Angle range regulating member (angle range regulating means)
B Body M Door mirror (a pair of left and right rear viewing devices)
Ml Left door mirror (part of left and right pair of rear view devices)
Mr Right door mirror (part of the pair of left and right rear viewing devices)
S seat W turn signal

Claims (5)

It is mounted on a vehicle equipped with a seat on which the driver is seated, a vehicle body that supports the seat, and a pair of left and right rear viewing devices that are disposed on the vehicle body and allow the driver to visually check the rear of the vehicle body, In a seat rotation device that is provided between the seat and the vehicle body and rotates the seat relative to the vehicle body,
Vehicle body side coupling means coupled to the vehicle body side;
A seat-side coupling means said seat is rotatably supported on the vehicle body side coupling means to face in either direction of the pair of right and left rear viewing device while being connected to the front Symbol seat side,
Rotational driving means for applying a driving force to the seat side coupling means to rotate the seat relative to the vehicle body;
Rotation request determination means for determining whether or not there is a request to rotate the seat relative to the vehicle body from the driver;
When it is determined by the rotation request determination means that the driver requests to rotate the seat relative to the vehicle body, the rotation driving means is driven to control the rotation of the seat relative to the vehicle body. And a control means for adjusting a relative angle of the seat to the vehicle body,
Angle detection means for detecting a relative angle of the seat with respect to the vehicle body adjusted by the control means;
Means for determining whether or not there is an instruction to store a relative angle of the seat with respect to the vehicle body adjusted by the control means;
A restoration angle storage means for storing the angle detected by the angle detection means when it is determined by the means that there is an instruction to store the relative angle of the seat with respect to the vehicle body from the driver;
A restoration request judging means for judging whether or not there is a request for restoring the relative angle of the seat with respect to the vehicle body to the angle stored in the restoration angle storage means;
The control means, when the restoration request judgment means judges that there is a request from the driver to restore the relative angle of the seat to the vehicle body to the angle stored in the restoration angle storage means, the rotation drive A seat rotating device characterized by adjusting the relative angle of the seat with respect to the vehicle body to an angle stored in the restoration angle storage means by drivingly controlling the means to rotate the seat relative to the vehicle body .   2. The seat rotating device according to claim 1, further comprising angle range restricting means for restricting a relative angle of the seat to the vehicle body within a predetermined angle range. The vehicle includes a blinker that is operated left and right by the driver in order to notify other vehicles of the course change of the vehicle,
Turn signal operation state detection means for detecting the left and right operation states of the turn signal;
Based on the detection result of the turn signal operation state detection means, the turn signal operation state determination means for determining whether the turn signal is operated left or right,
Left turn signal angle storage means for storing a relative angle of the seat with respect to the vehicle body when the turn signal is operated to the left;
A right turn signal angle storage means for storing a relative angle of the seat with respect to the vehicle body when the turn signal is operated to the right;
Wherein, the winker when the blinker by the operation state determination unit is determined to be operated to the left, by pre-Symbol rotation driving means controls and drives the seat relative rotation with respect to the vehicle body If one of adjusting the angle at which the relative angle stored in the left winker angle storage means for said body of said seat, said winker by the winker operation state determination means is determined to be operated in the right, front Stories The rotation angle of the seat relative to the vehicle body is adjusted by driving and controlling the rotation driving means to adjust the relative angle of the seat to the vehicle body to an angle stored in the right turn signal angle storage means. The seat rotating device according to 1 or 2 . Said control means, said seat by causing said when the winker by winker operation state determination means determines not to be operated, the relative rotation of the seat relative to the vehicle body front Symbol rotation driving means controls and drives 4. The seat rotation device according to claim 3 , wherein a relative angle of the vehicle to the vehicle body is adjusted to an angle stored in the restoration angle storage means . Vehicle, characterized in that it comprises a seat rotating apparatus according to any one of claims 1 to 4.

Images