JP2005231479A - Storage seat - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a storage seat having large freedom of movement track. <P>SOLUTION: The storage seat is constituted of: an arm 121 having one end rotatably provided on rear part of a seat cushion 113 and the other end rotatably provided on a recessed part 101; a main driving mechanism 131 for rotating/driving the arm 121 relative to the recessed part 101; a sub-driving mechanism 141 for rotating/driving the seat cushion 113 relative to the arm 121; an arm position detection means for detecting the position of the arm to the recessed part 101; a seat cushion position detection means for detecting the position of the seat cushion 113 to the arm 121; and a control means for taking-in signals from the arm position detection means and the seat cushion position detection means, driving the main driving mechanism 131 and the sub-driving mechanism 141 respectively and moving the seat cushion 113 between the seatable position and the storage position. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a storage sheet that is provided on a floor provided with a recess, and is movable between a seatable position other than the recess and a storage position moved into the recess from the seatable position. .

  With respect to a storage seat that is provided on a floor provided with a recess and is movable between a seatable position other than the recess and the storage position moved from the seatable position into the recess, as follows: Have been proposed.

  (1) In FIG. 16, the seat 2 is provided on the floor side and includes a seat cushion 5 that supports a seated person's buttocks and a seat back 6 that supports the seated person's back. Further, the seat back 6 is rotatably provided on the seat cushion 5 via the reclining mechanism 4, and can be tilted forward until it is substantially stacked on the seat cushion 5. And, by a parallel link mechanism using two links 7 and links 9 with one end rotatably attached to the bottom surface 3 of the recess 1 of the floor F and the other end rotatably attached to the seat cushion 5, The sheet 2 can be stored in the recess 1 (see, for example, Patent Document 1).

  (2) As shown in FIG. 17, one end is rotatably attached to the bottom surface 3 of the recess 1 of the floor F, and the other end is rotatably attached to the seat cushion 5, and one end is a link. The seat 2 can be stored in the recess 1 by a link mechanism including a link 13 that is rotatably attached to 11 and whose other end is movably engaged with an elongated hole 15 provided in the seat cushion 5. (For example, refer to Patent Document 2).

(3) As shown in FIG. 18, a link 21 having one end rotatably attached to the bottom surface 3 of the recess 1 of the floor F and the other end rotatably attached to the seat cushion 5, the link 21 and the seat The seat 2 can be stored in the recess 1 using a link mechanism including a means for prohibiting rotation with the cushion 5 (see, for example, Patent Document 3).
JP 11-48840 A (FIGS. 11 to 13) JP 11-48840 A (FIGS. 14 to 16) Japanese Patent Laid-Open No. 11-48840 (FIGS. 17 to 19)

When the sheet 2 is stored in the recess 1 using the link mechanism as shown in FIGS. 16 to 18, the sheet 2 must be moved so as not to interfere with surrounding structures.
However, since the link mechanism shown in FIGS. 16 to 18 is a limited link mechanism that performs a fixed motion, there is a problem that the degree of freedom in the movement trajectory of the sheet is small.

  The present invention has been made in view of the above problems, and an object thereof is to provide a storage sheet having a high degree of freedom of movement trajectory.

  The invention according to claim 1 that solves the above problem is provided on a floor provided with a recess, a seatable position that is located on the floor other than the recess, and a storage position that has moved from the seatable position into the recess. In the retractable seat that can move between the arms, one end is rotatably provided at the rear portion of the seat cushion, and the other end is rotatably provided in the recess, and the arm is driven to rotate with respect to the recess. A main drive mechanism that rotates, a sub drive mechanism that rotationally drives the seat cushion with respect to the arm, an arm position detection unit that detects a position of the arm with respect to the recess, and a position of the seat cushion with respect to the arm A signal from the seat cushion position detecting means, the arm position detecting means, and the seat cushion position detecting means is captured, and the Down drive mechanism, said sub-driving mechanism to drive each a retractable seat, characterized in that a control means for moving between a seating possible position and the storage position of the seat cushion.

  The control means takes in signals from the arm position detection means and the seat cushion position detection means, and drives the main drive mechanism and the sub drive mechanism to set the seat cushion between the seatable position and the storage position. Move between.

  The invention according to claim 2 is a seat back provided rotatably with respect to the seat cushion, a reclining mechanism for rotationally driving the seat back with respect to the seat cushion, and a position of the seat back with respect to the seat cushion. A seat back position detecting means for detecting the seat back position, and the control means takes in a signal from the seat back position detecting means and drives the reclining mechanism to move the seat back to the seat cushion at the retracted position. 2. The storage seat according to claim 1, wherein the seat back is moved to a neutral position capable of supporting a back of a seated person in the seatable position at the most forwardly tilted position where the seating is possible.

  The control means captures a signal from the seat back position detecting means and drives the reclining mechanism so that the seat can be seated at the most forwardly inclined position where the seat back is substantially stacked on the seat cushion in the retracted position. In the position, the seat back is moved to a neutral position capable of supporting the back of the seated person.

  The invention according to claim 3 is provided on the floor side and can be locked to at least one of the seat cushion and the arm when the seat is in the seatable position, and moves from the seatable position by locking. A lock mechanism for prohibiting the lock mechanism, a lock release mechanism for unlocking the lock mechanism, and a lock mechanism detection means for detecting a lock / unlock state of the lock mechanism, and the control means from the seatable position 3. The lock release mechanism is driven before the movement to the storage position, and a signal from the lock mechanism detection means is taken in to drive the main drive mechanism and the sub drive mechanism. It is a storage sheet of description.

  The control means drives the lock release mechanism before the movement from the seatable position to the retracted position, takes in a signal from the lock mechanism detection means, and drives the main drive mechanism and the sub drive mechanism.

  According to the first to third aspects of the invention, the control means drives the main drive mechanism and the sub drive mechanism, respectively, so that the seat cushion can be moved between the seatable position and the retracted position in a desired posture. Since it can be moved between, the degree of freedom of the movement locus of the seat cushion is large.

  According to the second aspect of the present invention, the control means drives the reclining mechanism to move the seat back between the seatable position and the retracted position in a desired posture with respect to the seat cushion. Since it is possible, the degree of freedom of the movement locus of the seat cushion is great.

  According to the invention of claim 3, when the seat cushion is provided on the floor side and in the seatable position, it can be locked with at least one of the seat cushion and the arm, and is locked from the seatable position. By providing the lock mechanism that prohibits the movement of the seat, the seat is firmly fixed at the seatable position.

  Further, an unlock mechanism for unlocking the lock mechanism and a lock mechanism detecting means for detecting a lock / unlock state of the lock mechanism are provided, and the control means moves from the seatable position to the retracted position. Safety is improved by driving the lock release mechanism before taking in, taking in a signal from the lock mechanism detection means, and driving the main drive mechanism and the sub drive mechanism.

Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings.
First, the mechanical configuration of the storage sheet of this embodiment will be described with reference to FIG. In the figure, a recess 101 is formed in the floor F. A first striker 103 and a second striker 105 are fixed to the floor F in the vicinity of the recess 101. In the figure, 111 is a seat, the position indicated by a solid line indicates the seatable position, and the position indicated by a two-dot chain line indicates the storage position stored in the recess 101. The seat 111 includes a seat cushion 113 that supports the seated person's buttocks and a seat back 115 that supports the seated person's back. The seat back 115 of the seat 111 according to the present embodiment is rotatably provided on the seat cushion 113 via an electric reclining mechanism 117 and can be tilted forward until it is substantially stacked on the seat cushion 113 (most forward tilt position). ing.

  One end of an arm 121 is rotatably provided in the recess 101 of the floor F. The other end of the arm 121 is rotatably attached to the rear portion of the frame 123 of the seat cushion 113 using a pin 125. Furthermore, a main drive mechanism 131 that rotationally drives one end of the arm 121 is provided on the bottom surface 102 of the recess 101. The main drive mechanism 131 includes a motor 133 and a speed reducer 135 using a planetary gear mechanism, and one end of the arm 121 is fixed to the output shaft of the speed reducer 135. Therefore, when the motor 133 of the main drive mechanism 131 is driven, the arm 121 fixed to the output shaft 135 of the speed reducer 135 rotates.

  Between the seat cushion 113 and the arm 121, a sub drive mechanism 141 that rotationally drives the seat cushion 113 with respect to the arm 121 is provided. The sub drive mechanism 141 has a screw rod 145 whose one end is rotatably attached to the arm 121 using a pin 143, and a nut member that is rotatably provided on the frame 123 of the seat cushion 113 and is screwed with the screw rod 145. Has a gear box 147 provided inside. The nut member in the gear box 147 is rotatable in the circumferential direction and is prohibited from moving in the axial direction. Further, the gear box 147 is provided with a motor 149 for driving the nut member. Therefore, when the motor 149 is driven and the nut member in the gear box 147 rotates, the nut member is prohibited from moving in the axial direction, so that the screw rod 145 moves in the axial direction and the seat is moved with respect to the arm 121. The cushion 113 will rotate.

  A front leg 153 is rotatably provided at the front portion of the frame 123 of the seat cushion 113 using a pin 151. One end of a link 163 extending in the direction of the arm 121 using a pin 161 is rotatably attached to the front leg 153. A plate 165 is rotatably attached to the pin 125 of the arm 121. The plate 165 is urged to rotate in the direction of arrow B by urging means (not shown). The other end of the link 163 is rotatably attached to the plate 165 using a pin 167. The arm 121 has a stopper 122 on which the urged plate 165 can abut, and the frame 123 of the seat cushion 113 has a stopper on which the plate 165 and the front leg 153 urged via the link 163 can abut. 124 is formed.

  The front leg 153 is provided with a first lock mechanism 181 that can be engaged with and disengaged from the first striker 103, and the arm 121 is provided with a second lock mechanism 191 that can be engaged and disengaged with the second striker 105. Since the first lock mechanism 181 and the second lock mechanism 191 have the same configuration, only the first lock mechanism 181 will be described, and the description of the second lock mechanism 191 will be omitted. The first lock mechanism 181 is rotatably provided and has a hook 183 formed with a groove 184 into which the first striker 103 can enter, and a lock formed on the peripheral surface of the hook 183 in the locked state (the state shown in the figure). The pole 187 is engageable with the portion 185. The hook 183 is urged by an urging means (not shown) in the direction of arrow C (unlock direction) and the pole 187 in the direction of arrow D (direction in contact with the peripheral surface of the hook 183).

Further, a cable 199 that transmits the operation of a lock release mechanism (not shown) is connected to the pole 187.
The general operation of such a configuration will be described. When the first lock mechanism 181 and the second lock mechanism 191 are unlocked and the main drive mechanism 131 is driven in the state shown in FIG. 1, that is, the seat 111 is in the seatable position, the arm 121 is moved in the direction of the arrow E ( The arm 121 rotates in the storage position direction. When the sub drive mechanism 141 is driven, the seat cushion 113 rotates about the pin 125 in the direction of arrow F (the seat cushion 113 retracted position direction) with respect to the arm 121. Further, when the seat cushion 113 rotates in the direction of arrow F, the front leg 153 rotates around the pin 151 in the direction of arrow G (the storage position direction of the front leg 153) via the plate 165 and the link 163. The plate 165 and the link 163 are set so that the front leg 153 is in the storage position before the arm 121 is in the storage position. When the reclining mechanism 117 is driven, the seat back 115 rotates with respect to the seat cushion 113.

Next, the electrical configuration of the sheet having the above configuration will be described with reference to FIG.
In the figure, 201 is a control means. Since the seat in this embodiment independently controls the main drive mechanism 131, the sub drive mechanism 141, the reclining mechanism 117, and the lock release mechanism, the control means 201 controls the main drive mechanism control unit that controls the main drive mechanism 131. 203, a sub drive mechanism control unit 205 that controls the sub drive mechanism 141, a reclining mechanism control unit 207 that controls the reclining mechanism 117, and an unlock mechanism control unit 209 that controls the unlock mechanism 195, Communication between the control units is possible.

  Reference numeral 251 denotes a storage switch (storage SW) that is pressed when the seat 111 in the seatable position is moved to the storage position, and reference numeral 253 denotes a return switch (return SW that is pressed when the seat 111 in the storage position is moved to the seatable position. ). Reference numeral 255 denotes arm position detection means for detecting the rotational position of the arm 121 relative to the bottom surface 102 of the recess 101. Reference numeral 257 denotes seat cushion position detection means for detecting the rotational position of the seat cushion 113 relative to the arm 121. Reference numeral 259 denotes seat back position detecting means for detecting the rotational position of the seat back 115 with respect to the seat cushion 113. As these position detection means, for example, there are a plurality of limit switches that respond according to the position to which the detection target has moved.

  Reference numeral 261 denotes a lock mechanism detection unit that detects the state (locked state / unlocked state) of the first lock mechanism 181 and the second lock mechanism 191. The lock mechanism detection means 261 can be realized by detecting the position of the hook of the lock mechanism. Reference numeral 263 denotes a timer, and reference numeral 264 denotes display means driven by the lock release mechanism control unit 209. The display means 264 includes, but is not limited to, a display such as a liquid crystal or LED, a warning lamp, and the like.

Next, the operation of the seat having the above configuration will be described with reference to FIGS. 3 to 6 are flowcharts for explaining the operation from the seatable position to the retracted position, FIGS. 7 to 10 are flowcharts for explaining the operation from the stowed position to the seatable position, and FIG. 11 is the seatable position. 12 is a configuration diagram when the arm is in the first position and the seat cushion is in the second position, and FIG. 13 is a configuration diagram when the arm is in the third position and the seat cushion is in the fourth position. 14 is a configuration diagram when the arm is in the fifth position and the seat cushion is in the sixth position, and FIG. 15 is a configuration diagram when the seat is in the retracted position.
(Seatable position → retracted position)
When the seat 111 is in the seatable position, it is in the state shown in FIG. The lock release mechanism control unit 209 continues to wait for the storage SW 251 to be pressed. When the storage SW 251 is pressed and turned on (step 1), the lock release mechanism 195 is driven to lock the first lock mechanism 181 in the locked state. The second lock mechanism 191 is unlocked (step 2). Specifically, the first lock mechanism 181 will be described. When the lock release mechanism 195 is activated, the cable 199 is pulled, and the pole 187 locked to the locking portion 185 of the hook 183 is removed from the peripheral surface of the hook 183. break away. Then, the hook 183 urged by the urging means rotates in the direction of arrow C, and the lock is released. The same applies to the second lock mechanism 191. The change from the locked state to the unlocked state is detected by the lock mechanism detecting means 261. When the first lock mechanism 181 and the second lock mechanism 191 are each in the unlocked state (step 3), the main drive mechanism control unit 203 is notified. A is notified B to the reclining mechanism control unit 207 (step 4). Subsequently, the timer 263 is started (step 5), and when the predetermined time (T1) is reached, the lock release mechanism 195 is stopped (steps 6 and 7). By stopping the lock release mechanism 195, the first lock mechanism 181 releases the pulling force of the cable 199, and the pole 187 comes into contact with the peripheral surface of the hook 183 to be locked. The same applies to the second lock mechanism 191.

  The main drive mechanism control unit 203 continues to wait for the notification A from the lock release mechanism control unit 209. When the notification A is received (step 8), the main drive mechanism 131 is driven to move the arm 121 in the storage position direction (FIG. 1). Rotate in the direction of arrow E) (step 9). When the arm 121 rotates to the first position (position shown in FIG. 12), a notification C is sent to the sub drive mechanism control unit 205 (step 11), and the main drive mechanism 131 is stopped (step 12).

  Similarly, the reclining mechanism control unit 207 continues to wait for the notification B from the unlocking mechanism control unit 209, and when the notification B comes (step 13), the reclining mechanism 117 is driven and the seat back 115 is moved forward. Rotate (step 14). Then, when the seat back 115 reaches the foremost tilt position, the reclining mechanism 117 is stopped (steps 15 and 16).

  The sub drive mechanism control unit 205 continues to wait for the notification C from the main drive mechanism control unit 203. When the notification C is received (step 17), the sub drive mechanism 141 is driven to move the seat cushion 113 in the retracted position direction (FIG. 1). It is rotated in the direction of arrow F (step 18). With the rotation of the seat cushion 113 in the retracted position direction, the front leg 153 rotates around the pin 151 in the arrow G direction (the retracted position direction of the front leg 153) via the plate 165 and the link 163.

When the sub drive mechanism 141 is driven, the main drive mechanism control unit 203 drives the main drive mechanism 131 again (steps 19 and 20).
The main drive mechanism control unit 203 stops the main drive mechanism 131 when the arm 121 reaches the third position (position shown in FIG. 13) (steps 21 and 22), and the sub drive mechanism control unit 205 sets the seat cushion. When 113 reaches the fourth position (position shown in FIG. 13), the sub drive mechanism 141 is stopped (steps 23 and 24).

  Here, when the main drive mechanism 131 and the sub drive mechanism 141 both stop (steps 25 and 26), the main drive mechanism control unit 203 drives the main drive mechanism 131 again to move the arm 121 in the storage position direction. Then, the sub drive mechanism control unit 205 drives the sub drive mechanism 141 again to move the seat cushion 113 in the retracted position direction (step 28).

  The main drive mechanism control unit 203 stops the main drive mechanism 131 when the arm 121 reaches the fifth position (position shown in FIG. 14) (steps 29 and 30), and the sub drive mechanism control unit 205 sets the seat cushion. When 113 reaches the sixth position (position shown in FIG. 14), the sub drive mechanism 141 is stopped (steps 31 and 32).

  Here, when the main drive mechanism 131 and the sub drive mechanism 141 both stop (steps 33 and 34), the main drive mechanism control unit 203 drives the main drive mechanism 131 again to move the arm 121 in the storage position direction. Then, the sub drive mechanism control unit 205 drives the sub drive mechanism 141 again to move the seat cushion 113 toward the retracted position (step 36).

The main drive mechanism control unit 203 stops the main drive mechanism 131 when the arm 121 reaches the retracted position (position shown in FIG. 15) (steps 37 and 38), and the sub drive mechanism control unit 205 sets the seat cushion 113. Is in the retracted position (position shown in FIG. 15), the sub drive mechanism 141 is stopped (steps 39 and 40), and the series of operations is terminated.
(Storage position → Seatable position)
When the sheet 111 is in the storage position, it is in the state shown in FIG. The main drive mechanism control unit 203 continues to wait for the return SW 253 to be pressed. When the return SW 253 is pressed and turned on (step 1), the main drive mechanism control unit 203 sends a notification D to the sub drive mechanism control unit 205 (step 2). The mechanism 131 is driven to rotate the arm 121 toward the seatable position (step 3).

  On the other hand, the sub drive mechanism control unit 205 continues to wait for the notification D from the main drive mechanism control unit 203, and when the notification D comes (step 4), the sub drive mechanism 141 is driven to seat the seat cushion 113. Rotate in the direction (step 5).

  The main drive mechanism control unit 203 stops the main drive mechanism 131 when the arm 121 reaches the fifth position (position shown in FIG. 14) (steps 6 and 7). When it reaches the sixth position (position shown in FIG. 14), the sub drive mechanism 141 is stopped (steps 8 and 9). Here, when both the main drive mechanism 131 and the sub drive mechanism 141 stop (steps 10 and 11), the main drive mechanism control unit 203 drives the main drive mechanism 131 again to move the arm 121 toward the seatable position. The sub drive mechanism control unit 205 notifies the reclining mechanism control unit 207 of the notification E (step 13), and further drives the sub drive mechanism 141 again to move the seat cushion 113 toward the seatable position. Move (step 14).

  The reclining mechanism control unit 207 continues to wait for the notification E from the sub drive mechanism control unit 205. When the notification E comes (step 15), the reclining mechanism control unit 207 drives the reclining mechanism 117 toward the neutral position where the seat back 115 can be seated. Rotate (step 16). When the seat back 115 reaches the neutral position, the reclining mechanism 117 is stopped (steps 17 and 18).

  The main drive mechanism control unit 203 stops the main drive mechanism 131 when the arm 121 reaches the third position (position shown in FIG. 13) (steps 19 and 20). When it reaches the fourth position (position shown in FIG. 13), the sub drive mechanism 141 is stopped (steps 21 and 22).

  Here, when both the main drive mechanism 131 and the sub drive mechanism 141 stop (steps 23 and 24), the main drive mechanism control unit 203 drives the main drive mechanism 131 again to move the arm 121 toward the seatable position. The sub drive mechanism control unit 205 drives the sub drive mechanism 141 again to move the seat cushion 113 toward the seatable position (step 26).

  The main drive mechanism control unit 203 stops the main drive mechanism 131 when the arm 121 reaches the first position (position shown in FIG. 12) (steps 27 and 28), and the sub drive mechanism control unit 205 determines that the seat cushion 113 is When the second position (position shown in FIG. 12) is reached, the sub drive mechanism 141 is stopped (steps 29 and 30).

  When the main drive mechanism 131 and the sub drive mechanism 141 are both stopped (steps 31 and 32), the main drive mechanism control unit 203 sends a notification F to the lock release mechanism control unit (step 33), and the main drive mechanism 131 is turned off. It is driven again to move the arm 121 toward the seatable position (step 34), and the sub drive mechanism controller 205 drives the sub drive mechanism 141 again to move the seat cushion 113 toward the seatable position (step 35). ).

  The lock release mechanism control unit 209 continues to wait for the notification F from the main drive mechanism control unit 203, and when the notification F comes (step 36), drives the lock release mechanism 195 (step 37). Subsequently, the timer 263 is started (step 38), and when the predetermined time (T2) is reached, the lock release mechanism 195 is stopped (steps 39 and 40). By this driving, for example, the cable 199 is pulled in the first lock mechanism 181, and the pole 187 is detached from the peripheral surface of the hook 183. Therefore, even if the hook 183 is in the locked position or the unlocked position, the unlocked position is surely lockable. The same applies to the second lock mechanism 191. Steps 33 and 36 to 40 may be omitted. Since the first lock mechanism 181 and the second lock mechanism 191 are in the lockable state in steps 6 and 7 at the (seatable position → storage position), the steps 36 and 37 are just steps. .

  Here, when the first lock mechanism 181 and the second lock mechanism 191 are not in a lockable state (step 41), the lock release mechanism control unit 209 notifies the main drive mechanism control unit 203 of the notification G and the sub drive mechanism control. A notification H is sent to the unit 205 (step 42), and an error is displayed on the display means 264 (step 43).

  When the first lock mechanism 181 and the second lock mechanism 191 are in a lockable state (step 41), the main drive mechanism 131 and the sub drive mechanism 141 are driven, so the first lock mechanism 181 and the second lock mechanism 181 When the lock mechanism 191 is in a locked state (step 44), the lock release mechanism control unit 209 sends a notification I to the main drive mechanism control unit 203 and a notification J to the sub drive mechanism control unit 205 (step 45).

  On the other hand, the main drive mechanism control unit 203 monitors the generation of the notification G or the notification I while driving the main drive mechanism 131 (steps 46 and 47). Similarly, the sub drive mechanism control unit 205 monitors the generation of the notification H or the notification J while driving the sub drive mechanism 141 (steps 48 and 49).

  When notification G and notification H are issued in step 42, the first lock mechanism 181 and the second lock mechanism 191 are not locked, and an error is also displayed (step 43). The main drive mechanism 131 is stopped (steps 46 and 50), and the sub drive mechanism control unit 205 stops the sub drive mechanism 141 (steps 48 and 51).

  When the notification I and the notification J are issued in step 45, the lock of the first lock mechanism 181 and the second lock mechanism 191 is completed, so the main drive mechanism control unit 203 stops driving the main drive mechanism 131. (Steps 47 and 52), the sub drive mechanism control unit 205 stops driving the sub drive mechanism 141 (Steps 49 and 53), and ends the series of operations.

According to such a configuration, the following effects can be obtained.
(1) The control unit 201 independently controls the main drive mechanism 131, the sub drive mechanism 141, the reclining mechanism 117, and the lock release mechanism 195, so that the seat 111 can be seated in the desired posture and the storage position. Therefore, the degree of freedom of the movement trajectory of the sheet 111 is large.
(2) Since the first lock mechanism 181 and the second lock mechanism 191 are provided, the seat 111 is firmly fixed at the seatable position.
(3) Unlock mechanism 195 for unlocking the first lock mechanism 181 and second lock mechanism 191; and lock mechanism detection means 261 for detecting the lock / unlock state of the first lock mechanism 181 and second lock mechanism 191. The control unit 201 drives the lock release mechanism 195 before moving from the seatable position to the retracted position and takes in a signal from the lock mechanism detection unit 261 to obtain the main drive mechanism 131 and the sub drive mechanism 141. By driving, safety is improved.

  The present invention is not limited to the above embodiment. In the above-described embodiment, the description has been given with the sheet having the seat back, but the present invention can be applied to a sheet without the seat back. In this case, the reclining mechanism 117, the reclining mechanism control unit 207, and the seat back position detection unit 259 are not necessary.

  Furthermore, only one of the first lock mechanism 181 and the second lock mechanism 191 may be provided, or the lock mechanism may not be provided. When there is no lock mechanism, the lock release mechanism 195, the lock release mechanism control unit 209, and the lock mechanism detection unit 261 are not necessary.

It is a figure explaining the mechanical constitution of the storage sheet of this example. It is an electrical configuration of the storage sheet of FIG. It is a flowchart explaining the operation | movement from a seatable position-> storage position. It is a flowchart explaining the operation | movement from a seatable position-> storage position. It is a flowchart explaining the operation | movement from a seatable position-> storage position. It is a flowchart explaining the operation | movement from a seatable position-> storage position. It is a flowchart explaining the action | operation from a storing position-> seatable position. It is a flowchart explaining the action | operation from a storing position-> seatable position. It is a flowchart explaining the action | operation from a storing position-> seatable position. It is a flowchart explaining the action | operation from a storing position-> seatable position. It is a block diagram when a storage seat exists in a seatable position. It is a block diagram when the arm is in the first position and the seat cushion is in the second position. It is a block diagram when the arm is in the third position and the seat cushion is in the fourth position. It is a block diagram when the arm is in the fifth position and the seat cushion is in the sixth position. It is a block diagram when a storage sheet exists in a storage position. It is a block diagram explaining a 1st prior art example. It is a block diagram explaining a 2nd prior art example. It is a block diagram explaining a 3rd prior art example.

Explanation of symbols

F floor 101 concave portion 113 seat cushion 121 arm 131 main drive mechanism 141 sub drive mechanism 201 control means

Claims (3)

In the storage seat provided on the floor provided with the recess, the seatable position located on the floor other than the recess, the storage seat movable between the storage position moved from the seatable position into the recess,
An arm having one end rotatably provided at the rear portion of the seat cushion and the other end rotatably provided in the recess;
A main drive mechanism for rotating the arm with respect to the recess;
A sub-drive mechanism that rotationally drives the seat cushion with respect to the arm;
Arm position detecting means for detecting the position of the arm with respect to the recess;
Seat cushion position detecting means for detecting the position of the seat cushion with respect to the arm;
The signals from the arm position detection means and the seat cushion position detection means are taken in, and the main drive mechanism and the sub drive mechanism are driven to move the seat cushion between the seatable position and the retracted position. Control means;
A storage sheet characterized by comprising: A seat back provided rotatably with respect to the seat cushion;
A reclining mechanism for rotationally driving the seat back with respect to the seat cushion;
A seat back position detecting means for detecting a position of the seat back with respect to the seat cushion;
The control means captures a signal from the seat back position detecting means and drives the reclining mechanism so that the seat can be seated at the most forwardly inclined position where the seat back is substantially stacked on the seat cushion in the retracted position. 2. The storage seat according to claim 1, wherein the seat back is moved to a neutral position where the back of the seated person can be supported. A lock mechanism that is provided on the floor side and can be locked to at least one of the seat cushion and the arm when in the seatable position, and prohibits movement from the seatable position by locking;
An unlocking mechanism for unlocking the locking mechanism;
A lock mechanism detecting means for detecting a lock / unlock state of the lock mechanism;
Provided,
The control means drives the lock release mechanism before moving from the seatable position to the retracted position, takes in a signal from the lock mechanism detection means, and drives the main drive mechanism and the sub drive mechanism. The storage sheet according to claim 1, wherein the storage sheet is provided.

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