JP2017094855A - Floor lifting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve fatigue of an inferior limb of a person who has seated on a seat during an extended period.SOLUTION: A recess 5a is provided on a floor 5 near the front side of a sofa 1, a lifting mechanism 25 which is configured from an X link mechanism and a movable floor 21 which is lifted by the lifting mechanism 25 are accommodated in the recess 5a. When a person 7 seating on the sofa 1 operates an elevation switch 71, an actuator 53 is driven, whereby the movable floor 21 is elevated from a "storage position" at which the movable floor is stored in the recess 5a to an "elevated inclined position" at which a front part of the movable floor is so inclined as to be positioned at a position higher than that of a rear part thereof.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a floor lifting device.

  In Patent Document 1, when an occupant's boarding / exiting operation in an automobile is detected, the floor panel is inclined so that its front height is higher than the rear height, thereby reducing the burden when the passenger gets on / off. Techniques for mitigating are disclosed. In this case, the occupant puts his / her foot on the inclined part of the floor panel so that the toe and the lower leg are almost at right angles so that the tension is effective when getting on and off.

JP 2006-1387 A

  The technique of Patent Document 1 is to temporarily raise the floor panel to reduce the burden when getting on and off. For example, when an automobile is operating automatically, the lower limbs of an occupant when sitting on a seat for a long time It does not reduce fatigue.

  In view of the above, an object of the present invention is to improve lower limb fatigue when a person is seated on a seat for a long time.

  In the present invention, a movable floor constituting one part of the floor is provided at a position near the front of the seat. The movable floor is positioned by the elevating mechanism so that the movable floor is located on the floor main body side and the upper surface is parallel to the upper surface of the floor main body. It moves up and down between the rising and tilting positions that are tilted so as to be higher than the main body.

  According to the present invention, it is possible to improve the fatigue of the lower limbs when sitting for a long time by placing a foot on the movable floor in a state where it is moved from the retracted position to the ascending inclined position. .

The floor raising / lowering apparatus concerning the 1st Embodiment of this invention is shown, (a) is a side view which shows the state in which a movable floor exists in a retracted position, (b) is a side view which shows the state in which a movable floor exists in a raise inclination position. It is. The detailed structure of the movable floor of FIG. 1 and a raising / lowering mechanism is shown, (a) is sectional drawing corresponding to Fig.1 (a), (b) is sectional drawing corresponding to FIG.1 (b). It is a flowchart which shows operation | movement of the movable floor of FIG. The floor raising / lowering apparatus concerning the 2nd Embodiment of this invention is shown, (a) is a side view which shows the state in which a movable floor exists in a storing position, (b) is a side view which shows the state in which a movable floor exists in a raise inclination position. It is. 4A and 4B show detailed structures of the movable floor and the lifting mechanism of FIG. 4, wherein FIG. 4A is a cross-sectional view corresponding to FIG. 4A, and FIG. 4B is a cross-sectional view corresponding to FIG. It is a flowchart which shows operation | movement of the movable floor of FIG. It is explanatory drawing which shows the dimension of each part in the state which has the movable floor of FIG. 4 in a raise inclination position.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  Fig.1 (a) has shown the floor raising / lowering apparatus concerning the 1st Embodiment of this invention, for example, the sofa 1 as a sheet | seat is installed in floors 5, such as the living room 3 of a house, for example. A person 7 is seated on the sofa 1. The sofa 1 includes a seat portion 11 having a seating surface 11a on which a person 7 sits, and a back portion 13 having a backrest surface 13a on which the person 7 leans rearward.

  A movable floor 21 constituting one part of the floor 5 is provided in the vicinity of the front of the sofa 1 (right side in FIG. 1A). The movable floor 21 is composed of one rectangular plate-like member, and the length (width) in the direction orthogonal to the paper surface of FIG. 1A is greater than the length (width) of the seat portion 11 in the same direction. Slightly shorter and approximately the same as the width of person 7.

  A portion of the floor 5 excluding the movable floor 21 constitutes a floor main body 23, and the sofa 1 is installed on the floor main body 23. The movable floor 21 is a separate body from the floor body 23. The sofa 1 may or may not be fixed to the floor body 23.

  The floor 5 including the movable floor 21 may be, for example, a wooden floor, or a carpet or other rug may be provided on the wooden floor. The carpet provided on the movable floor 21 is separate from the carpet on the floor body 23 and is preferably fixed to the movable floor 21 using an adhesive, a hook-and-loop fastener, or the like.

  The movable floor 21 moves up and down between the “storage position” in FIG. 1A and the “ascending slope position” in FIG. The movable floor 21 is lifted away from the “floor position” with respect to the floor main body 23 and becomes a “rising inclined position”. The movable floor 21 at the “ascending inclination position” is inclined such that the front part on the right side in FIG. 1 is higher than the rear part on the left side in FIG. In the following description, “front” such as “front” and “front side” corresponds to the right side in FIGS. 1 and 2, and “rear” of “rear” and “rear side” is shown in FIGS. Corresponds to the left side. The “front-rear direction” corresponds to the left-right direction in FIGS.

  The movable floor 21 and the elevating mechanism 25 are stored in the recess 5a formed in the floor 5 in the state shown in FIG. The movable floor 21 in the “storage position” stored in the recess 5 a has a surface (upper surface) that is substantially parallel to the surface (upper surface) of the floor body 23 and is substantially flush with the surface. The recess 5 a is included in the floor body 23.

  The movable floor 21 stored in the recess 5 a may not have the surface (upper surface) formed on the same surface as the surface (upper surface) of the floor body 23. That is, the surface (upper surface) of the movable floor 21 in the “storage position” is within the range where there is no problem when the person 7 moves on the floor 5 by walking, for example, to the surface (upper surface) of the floor body 23. It may be slightly protruding upward or may be slightly falling downward.

  As shown in FIG. 2, the elevating mechanism 25 includes an X link mechanism in which two links 27 and 29 rotate around a rotation support shaft 31 as a support shaft positioned between the links 27 and 29. . The X link mechanisms are provided at two locations on both sides of the movable floor 21 in the vehicle width direction (the direction orthogonal to the paper surface in FIG. 2).

  One of the two links 27 and 29 has a shorter overall length than the other link 29. One end of one link 27 is rotatably connected to a lower front bracket 33 provided on the bottom surface of the recess 5 a via a lower front support shaft 35. The lower front bracket 33 is located on the front side of the bottom surface of the recess 5a.

  The other end of one link 27 is rotatably connected to an upper rear bracket 37 provided on the lower surface of the rear portion (left side in FIG. 2) of the movable floor 21 via an upper rear support shaft 39. The rotation support shaft 31 is located between the lower front support shaft 35 and the upper rear support shaft 39 of one link 27. In this case, one link 27 has a length between the lower front support shaft 35 and the rotation support shaft 31 substantially equal to a length between the upper rear support shaft 39 and the rotation support shaft 31.

  The other link 29 of the two links 27 and 29 has a longer overall length than the one link 27. One end of the other link 29 is rotatably connected to a lower rear bracket 41 provided on the bottom surface of the recess 5a via a lower rear support shaft 43. The lower rear bracket 41 is located on the rear side (left side in FIG. 2) of the bottom surface of the recess 5a and is movable along a lower guide rail 45 extending in the front-rear direction with respect to the bottom surface of the recess 5a. is there.

  The other end of the other link 29 is rotatably connected to an upper front bracket 47 provided on the lower surface of the front portion of the movable floor 21 via an upper front support shaft 49. The upper front bracket 47 is movable along an upper guide rail 51 that extends in the front-rear direction with respect to the lower surface of the movable floor 21.

  The rotation support shaft 31 is positioned between the lower rear support shaft 43 and the upper front support shaft 49 of the other link 29. In this case, the length of the other link 29 between the upper front support shaft 49 and the rotation support shaft 31 is longer than the length between the lower rear support shaft 43 and the rotation support shaft 31. Note that the length between the lower rear support shaft 43 and the rotary support shaft 31 is the length between the lower front support shaft 35 and the rotary support shaft 31 of one link 27 and the upper rear support shaft 39 and the rotation. It is almost equal to the length between the support shaft 31.

  The rotation support shaft 31, the lower front support shaft 35, the upper rear support shaft 39, the lower rear support shaft 43, and the upper front support shaft 49 are X links provided at two locations on both sides of the movable floor 21 in the vehicle width direction. It extends in the vehicle width direction so as to connect the mechanisms.

  The recessed portion 5a includes an actuator accommodating space 5as at the left rear portion of the lower guide rail 45 in FIG. An actuator 53 as a drive source is accommodated and fixed at substantially the center of the actuator accommodating space 5as in the vehicle width direction (the direction orthogonal to the paper surface in FIG. 2). The actuator 53 is composed of, for example, a motor or a hydraulic or pneumatic cylinder.

  The actuator 53 includes a drive rod 55 that moves forward and backward in the front portion on the right side in FIG. 2, and the drive rod 55 is connected to the lower rear support shaft 43. A compression coil spring 57 is provided between the actuator 53 of the drive rod 55 and the lower rear support shaft 43.

  This embodiment restricts the movement of the movable floor 21 from the “storage position” in FIG. 2A and maintains the state of the “storage position”, and the movable floor 21 in FIG. 2B. An inclination lock mechanism is provided that restricts movement from the “ascending inclination position” and maintains the state of the “ascending inclination position”.

  The storage lock mechanism includes an electromagnetic actuator 59 that restricts the forward movement of the lower rear support shaft 43 at the “storage position” in FIG. The electromagnetic actuator 59 includes a lock pin 61 that moves forward and backward in the vertical direction at the top. The lock pin 61 is located on the front side (right side in FIG. 2A) of the lower rear support shaft 43 when the lock pin 61 is advanced upward as shown in FIG. Restricts forward movement of the. The lock pin 61 allows the lower rear support shaft 43 to move forward by moving backward from the position of FIG. 2A downward as shown in FIG. 2B.

  The tilt lock mechanism includes an electromagnetic actuator 63 that restricts the rear rear support shaft 43 from moving backward at the “rising tilt position” in FIG. The electromagnetic actuator 63 includes a lock pin 65 that moves forward and backward in the vertical direction at the top.

  When the lock pin 65 is advanced upward as shown in FIG. 2B, the lock pin 65 is located on the rear side (left side in FIG. 2A) of the lower rear support shaft 43 and is located on the lower rear support shaft. The rearward movement of 43 is restricted. The lock pin 65 allows the lower rear support shaft 43 to move backward by moving backward from the position of FIG. 2B downward as shown in FIG. 2A.

  The movable floor 21 is provided with a load sensor 69 as a detection unit that detects whether or not the person 7 is on the foot at the “storage position” in FIG. In addition, a lift switch 71 for moving the movable floor 21 up and down is provided on the side of the seat 11 in the sofa 1. The detection signal of the load sensor 69 and the on / off signal of the lift switch 71 are input to the ECU 67 as the control unit shown in FIG. For example, as shown in FIG. 1, the ECU 67 is configured to mount an operation unit 72 as a unit together with the lift switch 71 so as to be embedded in the side portion of the seat 11 in the sofa 1.

  The ECU 67 detects that the load sensor 69 detects that the foot of the person 7 is placed on the movable floor 21 at the “retracted position” of the movable floor 21 and determines that the lift switch 71 is turned on. The pin 61 is retracted to release the lock. That is, the lift switch 71 includes a storage lock release mechanism that releases the lock of the “storage position” of the movable floor 21.

  By moving the lock pin 61 backward, the movement restriction of the movable floor 21 from the “storage position” in FIG. That is, when the load sensor 69 detects that the foot of the person 7 is placed on the movable floor 21 in the “storage position”, the storage lock release unit that releases the restriction (lock) by the storage lock mechanism. including.

  Next, the operation of the first embodiment will be described based on the flowchart of FIG.

  Whether the foot of the person 7 is on the movable floor 21 in a state where the movable floor 21 is in the “storage position” of FIGS. 1A and 2A is detected by the load sensor 69 (step S31). If the foot of the person 7 is on the movable floor 21, the EUC 67 determines whether the lift switch 71 is operated and turned on (step S32).

  When the lift switch 71 is turned on, the person 7 is fatigued due to, for example, swelling of the legs when seated for a long time, and thus, it is determined that the person is willing to raise his / her leg. At this time, the electromagnetic actuator 59 is driven to move the lock pin 61 backward to release the lock at the “storage position” (step S33).

  After releasing the lock, the actuator 53 is driven so that the drive rod 55 moves forward to raise the movable floor 21 (step S34). At this time, the compression coil spring 57 serves to assist the driving force of the actuator 53. When the movable floor 21 is raised, the lower rear bracket 41 is moved forward along the lower guide rail 45 by the forward movement of the drive rod 55 from the state of FIG. 2A, and the upper front bracket 47 is moved to the upper guide rail 51. Move backwards along.

  As a result, the two links 27 and 29 rise from an almost horizontal state in FIG. 2A to an X shape inclined at an angle of approximately 45 degrees with respect to the horizontal plane in FIG. At that time, the movable floor 21 becomes an “ascending inclined position” in which the front part is inclined with respect to the floor main body 23 higher than the rear part as shown in FIG.

  When the movable floor 21 reaches the “ascending inclination position”, a sensor (not shown) detects the “ascending inclination position”, so that the lock pin 65 of the electromagnetic actuator 63 at the retracted position moves forward as shown in FIG. Thus, the lower rear support shaft 43 is positioned on the actuator 53 side. Thereby, the rearward movement of the lower rear support shaft 43 is restricted, and the “ascending slope position” of the movable floor 21 is maintained. The sensor that detects the “ascending slope position” of the movable floor 21 may detect, for example, the forward limit position of the lower rear bracket 41.

  As shown in FIG. 1 (b), the person 7 puts his / her feet on the movable floor 21 in the “inclined position” to improve fatigue caused by swelling of the lower limbs such as calves due to sitting for a long time. it can. The person 7 can also improve fatigue by crossing his legs on the movable floor 21.

  Next, it is determined whether or not the lift switch 71 is released (turned off) by the person 7 with the person 7 placing his / her foot on the movable floor 21 (step S35). When the up / down switch 71 is released, the electromagnetic actuator 63 is driven to move the lock pin 65 backward, and the “upward tilt position” is unlocked (step S36).

  After releasing the lock, the actuator 53 is driven so that the drive rod 55 moves backward to lower the movable floor 21 (step S37). That is, the lift switch 71 includes a tilt lock release mechanism for the person 7 to release the tilt lock mechanism.

  When the movable floor 21 is lowered, the lower rear bracket 41 moves rearward along the lower guide rail 45 and the upper front bracket 47 moves forward along the upper guide rail 51 from the state of FIG. . As a result, the two links 27 and 29 return from the state of rising to the X shape in FIG. 2B to the state close to the horizontal in FIG. At that time, the movable floor 21 becomes a “storage position” in which the surface (upper surface) forms substantially the same surface as the surface (upper surface) of the floor body 23.

  When the movable floor 21 reaches the “storage position”, a sensor (not shown) detects the “storage position”, so that the lock pin 61 of the electromagnetic actuator 59 in the retracted position moves forward as shown in FIG. It is located on the side opposite to the actuator 53 of the lower rear support shaft 43. As a result, the forward movement of the lower rear support shaft 43 is restricted, and the “storage position” of the movable floor 21 is maintained. The sensor that detects the “storage position” of the movable floor 21 may detect, for example, the retreat limit position of the lower rear bracket 41.

In the present embodiment, an X-link mechanism in which the two links 27 and 29 rotate around the rotation support shaft 31 as the lifting mechanism 25 is provided. For this reason, the two links 27 and 29 in the X link mechanism rotate about the rotation support shaft 31, so that the movable floor 21 can be moved between the “storage position” and the “rising inclination position”. it can.
Has been.

  The movable floor 21 of the present embodiment is accommodated in the recess 5a of the floor 5 at the “storage position”, and the surface (upper surface) forms substantially the same surface as the surface (upper surface) of the floor body 23. Thereby, when the movable floor 21 is in the “storage position”, the person 7 is not disturbed, and is almost the same as the floor where the movable floor 21 is not provided.

  In this embodiment, an actuator 53 is provided as a drive source for the lifting mechanism 25. Therefore, by driving the actuator 53 and moving the lower rear bracket 41 back and forth, the movable floor 21 can be moved and displaced between the “retracted position” and the “ascending slope position”. At that time, by using the actuator 53 as a drive source, the movable floor 21 can be easily and quickly moved between the “retracted position” and the “ascending slope position”.

  In the present embodiment, the compression coil spring 57 as a drive source for the elevating mechanism 25 assists the drive force of the actuator 53 when the movable floor 21 is raised. In this case, the movable floor 21 can be raised more quickly as much as the auxiliary force of the compression coil spring 57 is generated, and the drive power can be reduced.

  This embodiment includes a lock pin 61 of an electromagnetic actuator 59 that restricts movement of the movable floor 21 from the “storage position”, and a lift switch 71 for a person 7 to release the lock by the lock pin 61.

  As shown in FIG. 2A, by moving the lock pin 61 of the electromagnetic actuator 59 forward, the movement of the lower rear support shaft 43 to the front (right side in FIG. 2) is restricted. The forward movement of the lower rear bracket 41 to which the rear support shaft 43 is connected is restricted. Thereby, the movable floor 21 can maintain the “storage position” shown in FIGS. 1 (a) and 2 (a).

  Further, when the person 7 operates the lift switch 71 at the “storage position”, the electromagnetic actuator 59 is driven, and the lock pin 61 moves backwards downward. After the lock pin 61 moves backward, the actuator 53 is driven and the drive rod 55 moves forward, so that the movable floor 21 is moved from the “storage position” in FIG. 2A to the “ascending slope” in FIG. Position. Thereby, the movable floor 21 can be made into the "rising inclination position" shown in FIG.1 (b) and FIG.2 (b).

  The present embodiment includes a lock pin 65 of an electromagnetic actuator 63 that restricts movement of the movable floor 21 from the “ascending slope position”, and a lift switch 71 for a person 7 to release the lock by the lock pin 65. .

  As shown in FIG. 2 (b), the lock pin 65 of the electromagnetic actuator 63 is moved forward in the state where the movable floor 21 is in the “ascending slope position”, thereby moving the lower rear support shaft 43 to the rear. Movement of the lower rear bracket 41 to which the lower rear support shaft 43 is coupled is restricted. Thereby, the movable floor 21 can maintain the “ascending slope position” shown in FIGS. 1 (b) and 2 (b).

  Further, when the person 7 operates the lift switch 71 at the “ascending tilt position”, the electromagnetic actuator 63 is driven, and the lock pin 65 moves backwards. After the lock pin 65 is moved backward, the actuator 53 is driven and the drive rod 55 is moved backward, whereby the movable floor 21 is moved from the “ascending slope position” shown in FIG. 2B to “stored” shown in FIG. Position. Thereby, the movable floor 21 can be set to the “storage position” shown in FIGS. 1 (a) and 2 (a).

  In this embodiment, when the load sensor 69 detects that the foot of the person 7 is placed on the movable floor 21 in the “storage position”, the storage lock included in the ECU 67 is locked by the lock pin 61 of the electromagnetic actuator 59. Release part is released. As a result, when the person 7 puts his / her feet on the movable floor 21 in the “storage position”, the movable floor 21 can be moved up from the “storage position”.

  In the present embodiment, the elevating mechanism 25 can change the vertical position of the “rising inclination position” with respect to the “storage position” of the movable floor 21. This can be implemented by appropriately changing the drive stop position by the actuator 53. At that time, an electromagnetic actuator having a lock pin for restricting the forward movement of the lower rear support shaft 43 and an electromagnetic actuator having a lock pin for restricting the rearward movement of the lower rear support shaft 43 are appropriately added.

  In this case, by changing the “ascending slope position” with respect to the “storage position” of the movable floor 21 according to the physique difference of the person 7, even for a person 7 of a different physique, fatigue of the lower limbs when sitting for a long time Can be reduced.

  FIG. 4 shows a vehicle floor lifting apparatus according to the second embodiment of the present invention. In the second embodiment, a vehicle seat 10 on the driver's seat side in an automobile is installed on a floor panel 50 that constitutes a floor in the passenger compartment 30. An occupant (driver in this case) 70 who is a person sits on the seat 10 and holds the front steering 9. In addition, the direction shown by the arrow FR in FIG. 1 is the vehicle front.

  The seat 10 includes a seat seat portion (seat cushion) 110 including a seating surface 110a on which the occupant 70 sits, and a seat back portion (seat back) 130 including a backrest surface 130a on which the occupant 70 leans rearward. A headrest 15 is provided on the upper portion of the seat back portion 130.

  A dash panel 17 is provided in front of the floor panel 50. The dash panel 17 is a partition member that separates the vehicle compartment 30 from an engine compartment that houses an engine or the like (not shown). Near the floor panel 50 below the dash panel 17, pedals such as an accelerator pedal 19 and a brake padal (not shown) are provided.

  As shown in FIG. 4A, a movable floor 210 constituting a part of the floor panel 50 is provided in the vicinity of the seat 10 in front of the seat 10. The movable floor 210 is composed of one rectangular plate-like member, and the length (width) in the vehicle width direction is slightly shorter than the length (width) in the same direction of the seat seat portion 110. It should be approximately the same as the width of the body.

  A portion of the floor panel 50 excluding the movable floor 210 constitutes a floor main body 230, and the seat 10 is installed on the floor main body 230. The movable floor 210 is separate from the floor main body 230 and has substantially the same shape as the movable floor 21 in the first embodiment.

  The movable floor 210 is a plate-like cushion in which a skin material such as a carpet or a mat is pasted on the surface (upper surface) of a base material such as a general painted steel plate, a plated steel plate, or a resin molding material. Is the body. Thereby, like the floor main body 230, the movable floor 210 can obtain moderate cushioning properties and a high quality feeling on the surface.

  The movable floor 210 moves up and down between the “storage position” in FIG. 4A and the “ascending slope position” in FIG. 4B by the lifting mechanism 25 similar to that of the first embodiment. . The movable floor 210 ascends from the “storage position” with respect to the floor body 230 and becomes the “rising inclination position”. The movable floor 210 at the “rising inclination position” is inclined such that the front portion is higher than the rear portion with respect to the floor main body 230.

  The movable floor 210 and the elevating mechanism 25 are stored in the recess 50a formed in the floor panel 50 in the state shown in FIG. The movable floor 210 in the “storage position” stored in the recess 50 a has a surface (upper surface) that is substantially parallel to the surface (upper surface) of the floor body 230 and is substantially flush with the surface. The recess 50 a is included in the floor main body 230.

  The movable floor 210 stored in the recess 50a does not have to have the surface (upper surface) formed on the same surface as the surface (upper surface) of the floor body 230. That is, the surface (upper surface) of the movable floor 210 in the “retracted position” is slightly lower than the surface (upper surface) of the floor main body 230 within the range that does not hinder the operation of the occupant 70. It may be somewhat depressed.

  Since the lifting mechanism 25 is the same as that of the first embodiment, detailed description thereof is omitted. In addition, the recessed part 50a is provided with the actuator accommodating space 50as similar to the actuator accommodating space 5as in the rear part of the lower guide rail 45 in the left side in FIG. 5 similarly to the recessed part 5a of 1st Embodiment.

  The vehicle including the seat 10 of FIG. 4 includes an ECU 670 as a control unit including an automatic operation control unit that automatically performs at least pedal operation. ECU 670 includes an automatic driving determination unit that determines whether or not the automatic driving control unit causes the vehicle to perform automatic driving. When the pedal operation is automatically performed by the automatic operation control, the occupant 70 does not need the pedal operation using the foot. The pedal operation is an operation of the accelerator pedal 19 shown in the figure or a brake pedal (not shown).

  Similar to the movable floor 21 of the first embodiment, the movable floor 210 has a load sensor 69 as a detection unit that detects whether or not the occupant 70 has his / her foot on the “storage position” in FIG. Is provided. In addition, a lift switch 710 for moving the movable floor 210 up and down is provided, for example, on the steering 9 in the passenger compartment 30. The detection signal of the load sensor 69 and the on / off signal of the lift switch 710 are input to the ECU 670.

  The ECU 670 determines that the automatic driving determination unit determines that the vehicle is automatically controlled by the automatic driving control unit at the “storage position” of the movable floor 210, and the load sensor 69 places the foot of the occupant 70 on the movable floor 210. When it is detected that the lift switch 710 is turned on, the lock pin 61 is retracted to release the lock. That is, the lift switch 710 includes a storage lock release mechanism that releases the lock of the “storage position” of the movable floor 210.

  By moving the lock pin 61 backward, the movable floor 210 is released from the restriction on movement from the “storage position” in FIG. That is, the ECU 670 releases the restriction (lock) by the storage lock mechanism when the automatic driving determination unit determines that the vehicle is automatically controlled by the automatic driving control unit at the “storage position” of the movable floor 210. Including a storage lock release unit. Further, the ECU 670 releases the restriction (lock) by the storage lock mechanism when the load sensor 69 detects that the foot of the occupant 70 is placed on the movable floor 210 at the “storage position”. including.

  In addition, when the automatic driving determination unit determines that the automatic driving control by the automatic driving control unit has been released at the “ascending slope position” of the movable floor 210, the ECU 670 releases the lock by retracting the lock pin 65. . By moving the lock pin 65 backward, the movement restriction of the movable floor 210 from the “ascending slope position” in FIG. 5B is released. That is, when the automatic driving determination unit determines that the automatic driving control by the automatic driving control unit is released at the “ascending inclination position” of FIG. An inclination lock release unit for releasing (lock) is included.

  The occupant 70 who is a driver during automatic driving does not need at least pedal operation. For this reason, it is not necessary to extend the knee so as to reach the front pedals as in manual driving, and the knee is almost 90 degrees or less than 90 degrees as when sitting on a general chair. And the foot (heel) is placed on the floor panel 50 in the vicinity of the seat 10. At this time, the movable floor 210 in the “storage position” shown in FIG. 4A is arranged at the position where the foot of the occupant 70 is placed.

  Next, the operation of the second embodiment will be described based on the flowchart of FIG.

  In a state where the movable floor 210 is in the “storage position” of FIGS. 4A and 5A, the automatic driving determination unit determines whether or not the vehicle is in automatic driving (step S1). If it is determined that the vehicle is in automatic driving, the load sensor 69 detects whether or not the foot of the occupant 70 is on the movable floor 210 (step S2). If the foot of the occupant 70 is on the movable floor 210, the EUC 670 determines whether the lift switch 710 is operated and turned on (step S3).

  When the up / down switch 710 is turned on, the occupant 70 is tired, for example, when the legs are swollen for a long time, and it is determined that he / she intends to raise his / her leg. At this time, the electromagnetic actuator 59 is driven and the lock pin 61 is moved backward to release the lock at the “storage position” (step S4). After releasing the lock, the actuator 53 is driven so that the drive rod 55 moves forward to raise the movable floor 210 (step S5). At this time, the compression coil spring 57 serves to assist the driving force of the actuator 53.

  When the movable floor 210 is raised, the lower rear bracket 41 is moved forward along the lower guide rail 45 by the forward movement of the drive rod 55 from the state of FIG. 5A, and the upper front bracket 47 is moved to the upper guide rail 51. Move backwards along. As a result, the two links 27 and 29 rise from an almost horizontal state in FIG. 5A to an X shape inclined at an angle of approximately 45 degrees with respect to the horizontal plane in FIG. At that time, as shown in FIG. 5B, the movable floor 210 becomes an “ascending inclined position” in which the front portion is inclined with respect to the floor body 23 higher than the rear portion.

  When the movable floor 210 reaches the “ascending slope position”, a sensor (not shown) detects the “ascending slope position”, so that the lock pin 65 of the electromagnetic actuator 63 at the retracted position moves forward as shown in FIG. Thus, the lower rear support shaft 43 is positioned on the actuator 53 side. Thereby, the rearward movement of the lower rear support shaft 43 is restricted, and the “ascending slope position” of the movable floor 210 is maintained. The sensor that detects the “ascending slope position” of the movable floor 210 may be, for example, a sensor that detects the forward limit position of the lower rear bracket 41.

  As shown in FIG. 4B, the occupant 70 is placed on the movable floor 210 in the “inclined position” to improve fatigue caused by swelling of the lower limbs such as a calf due to riding for a long time. it can. The occupant 70 can also improve fatigue by crossing legs such as wobbling on the movable floor 210.

  Next, it is determined whether or not the automatic driving is released in a state where the occupant 70 puts his feet on the movable floor 210 (step S6). When the automatic operation is released, the electromagnetic actuator 63 is driven to move the lock pin 65 backward and unlock the “rising inclination position” (step S7). After releasing the lock, the movable floor 210 is lowered by driving the actuator 53 so that the drive rod 55 moves backward (step S8).

  When the movable floor 210 is lowered, the lower rear bracket 41 moves rearward along the lower guide rail 45 and the upper front bracket 47 moves forward along the upper guide rail 51 from the state of FIG. . As a result, the two links 27 and 29 return from the state of rising to the X shape in FIG. 5B to the state close to the horizontal in FIG. At that time, the movable floor 210 becomes a “storage position” in which the surface (upper surface) forms substantially the same surface as the surface (upper surface) of the floor main body 230.

  When the movable floor 210 is lowered to the “storage position”, a sensor (not shown) detects the “storage position”, so that the lock pin 61 of the electromagnetic actuator 59 in the retracted position moves forward as shown in FIG. It moves and is located on the side opposite to the actuator 53 of the lower rear support shaft 43. As a result, the forward movement of the lower rear support shaft 43 is restricted, and the “storage position” of the movable floor 210 is maintained. The sensor that detects the “storage position” of the movable floor 210 may be, for example, a sensor that detects the retreat limit position of the lower rear bracket 41.

  If it is determined in step S6 that the automatic operation has not been released, it is determined whether the lift switch 710 by the occupant 70 has been released (off) (step S9). When the lift switch 710 is released, the movable floor 210 is lowered (step S8) after releasing the lock of the “inclined position” (step S7), as in the case where the automatic operation is released. . That is, the lift switch 710 includes a tilt lock release mechanism for the occupant 70 to release the tilt lock mechanism.

  In the present embodiment, an X-link mechanism in which the two links 27 and 29 rotate around the rotation support shaft 31 as the elevating mechanism 25 is provided. For this reason, the two links 27 and 29 in the X link mechanism rotate about the rotation support shaft 31, so that the movable floor 210 can be moved between the “storage position” and the “rising inclination position”. it can.

  The movable floor 210 of the present embodiment is accommodated in the recess 50a of the floor panel 50 at the “storage position”, and the surface (upper surface) forms substantially the same surface as the surface (upper surface) of the floor body 230. Thus, during normal manual operation, the movable floor 210 does not interfere with the driver, and the pedal operation for the accelerator pedal 19 and the brake pedal can be performed in substantially the same manner as a vehicle without the movable floor 210.

  In this embodiment, an actuator 53 is provided as a drive source for the lifting mechanism 25. For this reason, by driving the actuator 53 and moving the lower rear bracket 41 back and forth, the movable floor 210 can be moved and displaced between the “retracted position” and the “ascending slope position”. At that time, by using the actuator 53 as a drive source, the movable floor 210 can be easily and quickly moved between the “retracted position” and the “ascending slope position”.

  In the present embodiment, the compression coil spring 57 as a drive source for the elevating mechanism 25 assists the drive force of the actuator 53 when the movable floor 210 is raised. In this case, the movable floor 210 can be raised more rapidly as much as the auxiliary force of the compression coil spring 57 is generated, and the drive power can be reduced.

  The present embodiment includes a lock pin 61 of an electromagnetic actuator 59 that restricts movement of the movable floor 210 from the “storage position”, and a lift switch 710 for the occupant 70 to release the lock by the lock pin 61.

  During normal manual operation that is not automatically operated, the lower rear support shaft 43 is moved forward by moving the lock pin 61 of the electromagnetic actuator 59 forward as shown in FIG. 5A. Is restricted, and the movement of the lower rear bracket 41, to which the lower rear support shaft 43 is coupled, forward of the vehicle is restricted. Thereby, the movable floor 210 can maintain the “storage position” shown in FIGS. 4A and 5A during manual operation.

  Further, when the vehicle shifts from manual operation to automatic operation, the occupant 70 operates the elevating switch 710 at the “retracted position” to drive the electromagnetic actuator 59 and the lock pin 61 moves backwards downward. To do. After the lock pin 61 moves backward, the actuator 53 is driven and the drive rod 55 moves forward, whereby the movable floor 210 is moved from the “storage position” in FIG. 5A to the “inclined slope” in FIG. Position. Thereby, the movable floor 210 can be set to the “ascending slope position” shown in FIGS. 4B and 5B during the automatic operation.

  The present embodiment includes a lock pin 65 of the electromagnetic actuator 63 that restricts the movement of the movable floor 210 from the “ascending slope position”, and a lift switch 710 for the occupant 70 to release the lock by the lock pin 65. .

  As shown in FIG. 5B, the lock pin 65 of the electromagnetic actuator 63 is moved forward while the movable floor 210 is in the “ascending slope position”, so that the rear rear support shaft 43 is rearward of the vehicle. The movement of the lower rear bracket 41 to which the lower rear support shaft 43 is connected is restricted to the rearward movement of the vehicle. Thereby, the movable floor 210 can maintain the “ascending slope position” shown in FIGS. 4B and 5B during automatic operation.

  Further, when the occupant 70 shifts from the automatic operation to the manual operation, the electromagnetic actuator 63 is driven by operating the elevating switch 710 at the “ascending tilt position”, and the lock pin 65 moves backward. Moving. After the lock pin 65 moves backward, the actuator 53 is driven and the drive rod 55 moves backward, so that the movable floor 210 is moved from the “ascending slope position” shown in FIG. 5B to “stored” shown in FIG. Position. Thereby, the movable floor 210 can be set to the “storage position” shown in FIGS. 4A and 5A during manual operation.

  In this embodiment, when the load sensor 69 detects that the foot of the occupant 70 is placed on the movable floor 210 in the “storage position”, the lock by the lock pin 61 of the electromagnetic actuator 59 is included in the storage lock included in the ECU 670. Release part is released. As a result, when the occupant 70 puts his / her feet on the movable floor 210 at the “storage position”, the movable floor 210 can be moved upward from the “storage position”.

  In the present embodiment, when it is determined that the vehicle is automatically operated at the “storage position” of the movable floor 210, the ECU 670 drives and controls the electromagnetic actuator 59 to move backward with the lock pin 61 downward. Let As a result, the movable floor 210 can move from the “storage position” to the “rising inclination position”, and the movable floor 210 can be raised during automatic operation.

  In the present embodiment, when it is determined that the automatic driving control of the vehicle has been canceled at the “inclined position” of the movable floor 210, the ECU 670 drives and controls the electromagnetic actuator 63 so that the lock pin 65 faces downward. Move backward. Thereafter, the actuator 53 is driven and controlled so that the drive rod 55 moves backward, and the movable floor 210 is lowered. As a result, the movable floor 210 can quickly move from the “ascending slope position” to the “storage position” and shift to manual operation.

  In the present embodiment, the elevating mechanism 25 can change the vertical position of the “rising inclination position” with respect to the “storage position” of the movable floor 210. This can be implemented by appropriately changing the drive stop position by the actuator 53. At that time, an electromagnetic actuator having a lock pin for restricting the forward movement of the lower rear support shaft 43 and an electromagnetic actuator having a lock pin for restricting the rearward movement of the lower rear support shaft 43 are appropriately added.

  In this case, by changing the “ascending slope position” with respect to the “storage position” of the movable floor 210 according to the physique difference of the occupant 70, even if the occupant 70 has a different physique, Fatigue can be reduced.

  FIG. 7 shows, as an example, the dimensions and angles of the respective parts when the movable floor 210 is in the “ascending slope position”.

  When the vertical dimension (interval) between the floor main body 230 and the uppermost part P of the seat part 110 is A = 263 mm, the vertical line and the movable floor standing from the center of the uppermost part P and the upper front support shaft 49 A vertical dimension (interval) B between the intersection point Q with the upper surface of 210 is set to 35 mm. Therefore, the vertical dimension (interval) C between the intersection point Q and the floor body 230 is 228 (263-35) mm.

  The vertical dimension (interval) D between the floor main body 230 and the rear end R of the upper surface of the movable floor 210 is 190 mm. A horizontal dimension (interval) E between the front end S of the seat 110 and the intersection Q is 260 mm. The inclination angle α with respect to the horizontal surface of the upper surface of the movable floor 210 (corresponding to the upper surface of the floor main body 230) is 10 degrees. Also. The inclination angle β with respect to the link 29 and the horizontal plane is 45 degrees.

  The link 27 has a dimension (length) a between the rotation support shaft 31 and the lower front support shaft 35 of 150 mm, and a dimension (length) b between the rotation support shaft 31 and the upper rear support shaft 39 of 120 mm. is there. The link 29 has a dimension (length) c between the rotation support shaft 31 and the lower rear support shaft 43 of 150 mm, and a dimension (length) d between the rotation support shaft 31 and the upper front support shaft 49 of 172 mm. is there.

  By setting the dimensions and angles of the respective parts to the above-described numerical values, the fatigue reduction effect of the lower limbs of the occupant 70 when riding for a long time is further enhanced. In addition, the dimension of each above-mentioned part is an example, and is not limited to said example. Further, the numerical values such as the dimensions of the respective parts described above may be applied to the first embodiment. Thereby, the fatigue reduction effect of the lower limb of the person 7 when sitting on the sofa 1 for a long time is further enhanced.

  As mentioned above, although embodiment of this invention was described, these embodiment is only the illustration described in order to make an understanding of this invention easy, and this invention is not limited to the said embodiment. The technical scope of the present invention is not limited to the specific technical matters disclosed in the above embodiment, but includes various modifications, changes, alternative techniques, and the like that can be easily derived therefrom.

  For example, in the first embodiment, the sofa 1 is described as an example of the seat. However, the chair is not limited to the sofa 1 and may be a chair on which a person 7 can sit. In the second embodiment, the present invention is applied to the driver's seat 10. However, the present invention may be applied to a passenger seat or a rear seat. When the present invention is applied to the passenger seat and the rear seat, the movable floor 210 may be set to the “ascending slope position” even during manual driving when the vehicle is not automatically driving.

  In each of the above-described embodiments, the actuator 53 and the compression coil spring 57 are used together as a drive source for the elevating mechanism 25. However, only the actuator 53 may be used, or only the compression coil spring 57 may be used. Good.

  When only the compression coil spring 57 is used, the movable floors 21, 210 are raised by the elastic force of the compression coil spring 57. When the movable floors 21, 210 are lowered, the person 7 or the occupant 70 presses the movable floors 21, 210 downward with their feet against the elastic force of the compression coil spring 57. Alternatively, the actuator may be used only when the movable floors 21 and 210 are raised, and the spring may be used only when the movable floors 21 and 210 are lowered.

  By using only the compression coil spring 57, the movable floors 21 and 210 can be raised and lowered at a lower cost than when the actuator 53 is used.

  In addition, the person 7 or the occupant 70 can move the movable floors 21 and 210 at the “storage position” in FIGS. 1A and 4A and the “inclined inclination position” in FIGS. 1B and 4B. A latch lock that can be locked and unlocked by pressing down toward the bottom may be used. The latch lock in this case functions as a storage lock mechanism and a tilt lock mechanism, and also functions as a storage lock release mechanism and a tilt lock release mechanism.

1 Sofa (seat)
5 floor 5a floor recess 7 person 10 vehicle seat 21, 210 movable floor 23, 230 floor body 25 lifting mechanism (X link mechanism)
27, 29 Link 31 Rotation support shaft (support shaft)
50 Floor panel (floor)
50a Recessed floor panel 53 Actuator (drive source)
57 Compression coil spring (spring, drive source)
61 Lock pin of electromagnetic actuator (retraction lock mechanism)
65 Electromagnetic actuator lock pin (tilt lock mechanism)
67 ECU (storage lock release part, tilt lock release part)
670 ECU (storage lock release unit, tilt lock release unit, automatic operation control unit, automatic operation determination unit)
69 Load sensor (detector)
71,710 Lift switch (storage lock release mechanism, tilt lock release mechanism)

Claims (12)

A floor having a floor body on which seats are installed;
A movable floor that is provided in the vicinity of the seat in front of the seat, constitutes a part of the floor, and is separate from the floor body;
A storage position in which the movable floor is positioned on the floor body side and the upper surface is a plane parallel to the upper surface of the floor body, and the front portion is raised from the floor body with respect to the storage position, and the front portion is higher than the rear portion. An ascending / descending mechanism that inclines so as to be a high position, and an elevating mechanism that moves up and down between them,
A floor lifting device characterized by comprising: The elevating mechanism includes an X link mechanism in which two links rotate around a support shaft located in the middle of each link,
One of the two links has one end rotatably connected to the floor body, and the other end rotatably connected to the vehicle rear portion of the movable floor,
The other of the two links has one end connected to the floor body so as to be rotatable and movable in the vehicle front-rear direction, and the other end is rotatable relative to the vehicle front portion of the movable floor and the vehicle front-rear direction. The floor lifting device according to claim 1, wherein the floor lifting device is movably connected to the floor.   The floor lifting device according to claim 1 or 2, wherein the movable floor is accommodated in a recess provided in the floor at the storage position.   The floor elevating device according to any one of claims 1 to 3, further comprising an actuator as a drive source of the elevating mechanism.   The floor lifting device according to any one of claims 1 to 4, further comprising a spring as a drive source of the lifting mechanism. A storage lock mechanism for restricting movement of the movable floor from the storage position;
The floor lifting device according to any one of claims 1 to 5, further comprising a storage lock releasing mechanism for a person to release the storage lock mechanism. A detection unit for detecting that a human foot is placed on the movable floor of the storage position;
The storage lock release unit that releases the restriction by the storage lock mechanism when the detection unit detects that a human foot is placed on the movable floor at the storage position. Item 7. The floor lifting device according to Item 6. An inclination lock mechanism for restricting movement of the movable floor from the rising inclination position;
A floor lifting device according to any one of claims 1 to 7, further comprising a tilt lock release mechanism for a person to release the tilt lock mechanism.   The floor elevating device according to any one of claims 1 to 8, wherein the elevating mechanism has a variable vertical position of the ascending inclined position with respect to the storage position.   The floor lifting device according to any one of claims 1 to 9, wherein the seat is for a vehicle. The vehicle seat is a driver seat,
An automatic operation control unit for automatically performing at least a pedal operation on a vehicle including the vehicle seat;
An automatic driving determination unit that determines whether or not the vehicle is controlled automatically by the automatic driving control unit;
A storage lock mechanism for restricting movement of the movable floor from the storage position;
A storage lock release unit that releases the restriction by the storage lock mechanism when the automatic operation determination unit determines that the vehicle is controlled automatically by the automatic operation control unit at the storage position of the movable floor. And a floor lifting device according to claim 10. The vehicle seat is a driver seat,
An automatic operation control unit for automatically performing at least a pedal operation on a vehicle including the vehicle seat;
An automatic driving determination unit that determines whether or not the vehicle is controlled automatically by the automatic driving control unit;
An inclination lock mechanism for restricting movement of the movable floor from the rising inclination position;
An inclination lock release unit for releasing the restriction by the inclination lock mechanism when the automatic operation determination unit determines that the automatic operation control by the automatic operation control unit is released at the rising inclination position of the movable floor; The floor lifting device according to any one of claims 1 to 11, further comprising:

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