JP2006273196A - Movable floor device of automobile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a movable floor device of an automobile capable of effectively improving the supporting rigidity of a movable floor. <P>SOLUTION: This device comprises a movable floor panel arranged in a foot resting area of an occupant seating on a seat on an inclined panel 4a of a floor panel extending in a vehicle body longitudinal direction, an elevating mechanism 33 elevating the movable floor panel to the floor panel, and a second transmission cable 25 driving the elevating mechanism 33. A holding mechanism 334 positioning and holding the movable panel in a state that the second transmission cable 25 stops its driving is installed between the second transmission cable 25 and the movable floor panel. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a movable vehicle having a movable floor portion that can change a floor height of a foot placement area on which a foot portion of the occupant is placed according to the physique and body shape of the occupant seated on the seat of the vehicle. The present invention relates to a floor device.

  It is known that the driving posture of an occupant sitting on a car seat, particularly a driver sitting on a driver's seat, is closely related to the driving comfort and driving safety of the occupant. Such an occupant's driving posture can be achieved by seat position adjusting means for adjusting the front and rear position and height of the seat, and also by a movable floor device for adjusting the height of the movable floor portion that can be raised and lowered relative to the fixed floor portion. It is known to be adjustable. As such a movable floor device, the following has been conventionally proposed.

For example, Patent Literature 1 discloses a foot on which a fixed floor portion extending in the longitudinal direction of the vehicle body and a foot portion of an occupant seated on a seat on the fixed floor portion and below a pedal such as a brake pedal are placed. A movable floor panel disposed in the part mounting area, an elevating mechanism for moving the movable floor panel up and down relative to the fixed floor part, and the movable floor panel guided to swing up and down with respect to the fixed floor part. A movable floor apparatus including a plurality of stay members to be supported has been proposed. In this movable floor device, the stay member serves as a guide, and the movable floor panel is moved up and down by a lifting mechanism constituted by a rack mechanism.
Japanese Utility Model Publication No. 63-12217

  By the way, in such a movable floor device, when the occupant's feet are placed on the movable floor panel and the movable floor panel sinks or rattles, the occupant feels uncomfortable or uneasy. For this reason, it is desired that the movable floor panel is supported with a certain support rigidity.

  In particular, when the elevating mechanism is configured by a rack mechanism as in the movable floor device described in Patent Document 1, a load is applied to the movable floor panel by placing an occupant's foot on the movable floor panel. Is input, and a reverse driving force (reverse driving force) acts on the lifting mechanism, which may cause the movable floor panel to sink or rattle.

  In view of the above circumstances, an object of the present invention is to provide a movable floor device for an automobile that can effectively improve the support rigidity of the movable floor portion.

  A movable floor device for an automobile according to the present invention is provided on a fixed floor portion extending in the longitudinal direction of the vehicle body and disposed in a foot placement region of an occupant seated on a seat, and the movable floor portion. In a movable floor device of an automobile provided with an elevating mechanism that moves up and down with respect to the fixed floor portion and a drive mechanism that drives the elevating mechanism, the movable floor portion is at a stop position in a state where the drive mechanism is stopped. A holding mechanism for positioning and holding is provided between the driving mechanism and the movable floor portion.

  According to the present invention, since the holding mechanism for positioning and holding the movable floor portion is provided at the stop position in a state where the drive mechanism is stopped, the movable floor portion positioned at the desired stop position by the drive mechanism. Even when the occupant's feet are placed on top and a load is input to the movable floor, the load can be supported by the holding mechanism, and the subsidence and rattling of the movable floor can be effected accordingly. The movable floor portion can be supported with high support rigidity while being suppressed. In addition, since the holding mechanism is provided between the driving mechanism and the movable floor portion, the front side (reverse driving force) input to the movable floor portion by the holding mechanism is transmitted to the driving mechanism ( The movable mechanism can be supported by the movable floor portion side of the drive mechanism, thereby effectively preventing the drive mechanism from reversing based on the reverse drive force and the movable floor portion from sinking significantly.

  The specific configuration of the drive mechanism is not particularly limited. For example, the drive mechanism includes a drive source that generates a drive force and a drive force transmission that transmits the drive force generated by the drive source to the lift mechanism. In this case, it is preferable that the holding mechanism is provided between the driving force transmitting means and the movable floor portion (claim 2).

  If comprised in this way, since a drive force transmission means is included in a drive mechanism, a drive source and a raising / lowering mechanism can be arrange | positioned separately, and the freedom degree on a vehicle-mounted layout can be improved. Here, when the driving force is transmitted from the driving source to the elevating mechanism through the driving force transmitting means, the driving force transmitting means is interposed between the driving source and the elevating mechanism. However, when the driving force transmission means is provided, the load transmission path from the driving source to the lifting mechanism becomes relatively long, and when the load transmission path becomes relatively long as described above, the play in the driving force transmission means becomes relatively long. Further, it is assumed that the movable floor portion sinks or rattles due to the occupant's foot being placed based on the accumulation of distortion. In this regard, in the present invention, since the holding mechanism is provided between the driving force transmission means and the movable floor portion, it is possible to effectively prevent the sinking, rattling and the like based on the driving force transmission means. Can do.

  In this case, the driving force transmission means has a long rotation driving shaft portion, and is configured to transmit the driving force from the driving source by rotating the rotation driving shaft portion around the axis. (Claim 3).

  According to this structure, the driving force transmission means is constituted by the rotation driving shaft portion that transmits the driving force by rotating around the axis, so that the driving force transmission means is constituted by the slide mechanism of the rack mechanism. Unlike the case where the drive force is transmitted, the drive force is not accompanied by a slide movement. Therefore, by providing the drive force transmission means, it is not necessary to secure a space for the slide movement. It can be arranged compactly. Further, when the driving force transmission means is constituted by a long rotation driving shaft portion as described above, if the reverse driving force acts on the driving force transmission means, the accumulation of distortion in the rotation driving shaft portion tends to increase. However, in the present invention, since the holding mechanism is provided on the movable floor portion side of the drive mechanism as described above, the sinking of the movable floor portion is caused. It is possible to reliably prevent rattling.

  The holding mechanism has a specific configuration, particularly if it can block the load (reverse driving force) from being transmitted to the driving mechanism side by supporting the load input from the movable floor portion. Although not limited thereto, the holding mechanism rotates as the input shaft portion rotates by engaging the input shaft portion and the input shaft portion that rotates when the driving force is input from the driving mechanism. An output shaft portion, a stopper that restricts the rotation of the output shaft portion when the input shaft portion is not rotating, and a release portion that releases the rotation restriction by the stopper when the input shaft portion rotates. It is preferable to provide (Claim 4).

  According to this structure, the rotation of the output shaft portion is restricted by the stopper, thereby effectively blocking the transmission of the reverse driving force to the drive mechanism side, and the above-mentioned stopper by rotating the input shaft portion. Is provided with a release part that releases the rotation restriction by the above-mentioned drive mechanism, and when the movable floor part is moved up and down by the drive mechanism, the stopper is released by the release part, so that the stopper becomes an obstacle when the movable floor part is moved up and down. This can be avoided reliably.

  The holding mechanism may be a worm that is rotationally driven by the drive mechanism instead of or in addition to the configuration described above, and a worm wheel that meshes with the worm and transmits a rotational driving force to the lifting mechanism. (Claim 5).

  With this configuration, the holding mechanism can be configured with a simple configuration by effectively utilizing the characteristics of the worm gear that the worm wheel pitch is advanced by rotating the worm and the reverse is difficult. it can.

  The elevating mechanism may be a known elevating mechanism such as a rack mechanism as disclosed in Patent Document 1, for example. The elevating mechanism includes a rotating shaft portion that rotates forward and backward around a horizontal axis, and the rotating shaft portion. It is preferable that the rotating floor portion is connected to the holding mechanism.

  If comprised in this way, a movable floor part can be moved up and down by the rocking | fluctuating arm part which rotates integrally with a rotating shaft part, and rocks | fluctuates up and down, compared with the raising / lowering mechanism slid up and down with a slide mechanism etc. Thus, the lifting mechanism can be formed compactly. Moreover, when the movable floor portion is moved up and down by the swing arm portion in this way, a load generated on the movable floor portion is likely to be generated in the drive mechanism as a reverse drive force through the lift mechanism. The reverse driving force can be effectively supported by the holding mechanism, and therefore the movable floor portion can be supported with high support rigidity.

  In the present invention, it is preferable that a positioning support mechanism for supporting the movable floor portion with respect to the fixed floor portion is provided separately from the elevating mechanism at the stop position in a state where the drive mechanism is stopped. ).

  If comprised in this way, since a movable floor part is supported separately from a raising / lowering mechanism by a positioning support mechanism, the support rigidity of a movable floor part can further be improved.

  The movable floor portion may be configured to move up and down while maintaining a posture parallel to the fixed floor portion. It is preferable that one of them is pivotally supported by the fixed floor portion (claim 8).

  With this configuration, the movable floor portion can be moved up and down by swinging up and down around the pivoted end edge, and the movable floor portion maintains a parallel posture with respect to the fixed floor portion. As a result, the occupied space can be made smaller as compared with the case where the vertical movement is performed, and the inclination angle of the movable floor portion can be adjusted with the vertical movement.

  As a seating posture adjusting device for adjusting the seating posture of the occupant, if the seat position adjusting mechanism for adjusting the seat position is provided in addition to the movable floor device according to the present invention, the seating posture of the occupant can be adjusted more finely. In this case, the elevating mechanism may be configured to be driven separately from the seat position adjusting mechanism, but in conjunction with the seat position adjusting mechanism for adjusting the position of the seat. It is preferable that the motor is configured to be driven by a vehicle (claim 9).

  If comprised in this way, it can adjust automatically to the optimal movable floor height according to a sheet | seat position by adjusting a seat position and a movable floor part height beforehand, and becomes a more convenient thing. .

  Here, the specific structure of the drive mechanism is not particularly limited. For example, the drive mechanism may generate a drive force by a manual operation. In this case, the drive mechanism is swung by an occupant. An operation lever that is operated in a moving manner, and when the operation lever is swung in a predetermined direction from an initial posture, the operation lever engages with the operation lever and transmits the swinging force as a rotational driving force. It is preferable to include an output gear that disengages the operation lever and interrupts transmission of the swinging force when the swinging operation is performed in a direction to return to the initial posture.

  If comprised in this way, the driving force required for position adjustment of a movable floor part can be efficiently generated by the rocking | fluctuation operation of the operation lever several times.

  Moreover, about this drive mechanism, it can replace with the said structure and the said drive mechanism can also be made into the drive motor driven by a passenger | crew's input operation (Claim 11).

  If comprised in this way, the drive force for raising / lowering a movable floor part with a drive motor can be generated.

  According to the movable floor device for an automobile of the present invention, even when a passenger's foot is placed on the movable floor portion and a load is input to the movable floor portion, the movable floor device supports the reverse driving force. Accordingly, there is an advantage that the movable floor portion can be supported with high support rigidity while effectively suppressing the sinking and rattling of the movable floor portion. In addition, since the holding mechanism is provided between the drive mechanism and the movable floor portion, the holding mechanism transmits the reverse driving force to the drive mechanism on the near side (the movable floor portion side of the drive mechanism). Accordingly, it is possible to effectively prevent the movable floor portion from sinking and the like due to the reverse of the reverse driving force.

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

(First embodiment)
FIG. 1 is a perspective view showing an outline of a seating posture adjusting device for an automobile including a movable floor device according to the first embodiment, and FIGS. 2 and 3 are a side view and a plan view of the device. This seating posture adjusting device is composed of a seat position adjusting device that adjusts the seat position and a movable floor device that adjusts the position of the movable floor panel including the height. It may include a steering position adjusting device for adjusting the pedal position, a pedal position adjusting mechanism for adjusting a pedal position such as a brake pedal, and the like. In the first embodiment, the case where the seating posture adjusting device including the movable floor device is applied to the driver's seat will be described. However, the seating posture adjusting device can also be applied to the navigation seat and the rear row seat. This is used to make the sitting position of the passengers comfortable.

  On the floor panel 4 (corresponding to an example of a fixed floor portion) extending in the longitudinal direction of the vehicle body, an occupant seat 5 having a seat cushion 51 and a seat back 52, and the position of the seat 5 in the longitudinal direction of the vehicle body are adjusted. And a movable floor device 8 that adjusts the height of the movable floor panel 7 by driving the movable floor panel 7 on which the feet of the passenger seated on the seat 5 are placed. Has been.

  The floor panel 4 is formed of a steel plate, and at least the front side of the seat 5 is formed flat as shown in FIG. And the front-end part of this floor panel 4 is inclined so that it may rise frontward, and the front-end edge of this inclination panel part 4a is connected with the dash panel 9 which partitions an engine room and a vehicle interior. The dash panel 9 is supported by a pedal 10 such as a brake pedal or an accelerator pedal, which is operated by a foot of an occupant seated on the seat 5, and a steering device 11 operated by the occupant. . Moreover, the tunnel part 4b is formed when the substantially center part of the vehicle width direction of the floor panel 4 bulges upwards. The tunnel portion 4b extends in the longitudinal direction of the vehicle body, and the outside of the tunnel portion 4b is covered with a center console (not shown), and various wire harnesses and ducts are formed in the space between the center console and the tunnel portion 4b. Etc. are arranged. A side sill 12 having a closed cross section extending in the longitudinal direction of the vehicle body is joined to an edge of the floor panel 4 in the vehicle width direction, so that the vehicle body rigidity is improved.

  The occupant seat 5 is disposed on the floor panel 4 and between the tunnel portion 4b of the panel 4 and the side sill 12, and the seat 5 is configured to be adjustable by a seat position adjusting device 6. . As shown in FIGS. 2 and 3, the seat position adjusting device 6 includes a seat slide mechanism 61 that supports the seat 5 so as to be movable in the longitudinal direction of the vehicle body, and the seat 5 is slid and displaced by the slide mechanism 61 And a seat lifting mechanism 62 that adjusts the height and inclination angle of the cushion 51.

  The seat slide mechanism 61 includes a pair of left and right slide rails 63 that support the seat 5 so as to be movable in the longitudinal direction of the vehicle body, and a slide plate that protrudes below both side edges of the seat cushion 51 and is slidably supported by the slide rails 63. 64 is the basic configuration.

  The slide rail 63 is made of C-shaped steel or the like that slidably supports the slide plate 64, and has a predetermined elevation angle (on the upper surface of a pair of front and rear cross members 13 and 14 installed on the floor panel 4 in the vehicle width direction). For example, it is attached in a state where it is inclined upward at about 15 °. Further, as shown in FIG. 4, the rack gear 15 extending in the front-rear direction of the vehicle body is fixed to the outer wall surface of the slide rail 63 so as to mesh with the rolling gear 16 serving as the operating portion of the seat lifting mechanism 62. ing.

  At the front portion of the slide plate 64, a support shaft 20 that passes through the pivotal support portion of the front bracket 17 fixed to a frame material (not shown) of the seat cushion 51 connects the left and right slide plates 64 to each other. It is arranged. A rotating shaft 21 that rotates integrally with the rolling gear 16 is pivotally supported in the center of the slide plate 64 while penetrating the slide plate 64, and an intermediate gear 22 that meshes with the rolling gear 16. It is supported rotatably. Further, on the inner surface side of the rear end portion of the slide plate 64, a base end portion of the seat elevating lever 23 that vertically moves the rear end portion of the seat cushion 51 is pivotally supported.

  The rotary shaft 21 that rotates integrally with the rolling gear 16 is connected to the tip of a first transmission cable 24 that transmits the rotational force of a drive motor, which will be described later, and the intermediate gear 22 is driven to rotate. One end of a second transmission cable 25 that transmits force to the movable floor device 8 is connected. A drive gear 26 is provided inside the slide plate 64 so as to rotate and move together with the intermediate gear 22 so as to drive and move the lifting lever 23. The drive gear 26 is set to have a diameter smaller than that of the intermediate gear 22, so that the number of teeth is set to be smaller than that of the intermediate gear 22, and the sector gear 23 a formed at the base end portion of the elevating lever 23. It is comprised so that it may mesh with.

  The tip of the lift lever 23 is connected to the rear bracket 28 of the seat cushion 51 via the link plate 27. A seat elevating mechanism 62 that swings and displaces the seat cushion 51 and adjusts its vertical position in conjunction with the slide displacement of the seat 5 by the link plate 27, the elevating lever 23, the drive gear 26, and the intermediate gear 22. It is configured. That is, the drive gear 26 is driven to rotate according to the rotational force transmitted from the first transmission cable 24 to the intermediate gear 22 via the rolling gear 16, and the elevating lever 23 is driven by the drive gear 26. The rear end portion of the seat cushion 51 is moved up and down with the support shaft 20 pivotally supported by the front bracket 17 corresponding to the swinging displacement.

  The first and second transmission cables 24 and 25 (corresponding to an example of the driving force transmission means) are respectively composed of long rotating drive shaft portions 24a and 25a having flexibility, and the rotation drive shaft portions 24a and 25a. Are driven to rotate about the axis and transmit the rotational force to the operating portion. The first and second transmission cables 24 and 25 are projected from the connecting portion with respect to the rotating shaft 21 and the intermediate gear 22 toward the center portion of the vehicle body, and via a bent portion provided at an inner end portion thereof. It is led out to the front side of the vehicle body.

  As shown in FIG. 5, the first transmission cable 24 is extended from the locking position by the locking tool 29 to the rear side of the vehicle body so as to extend rearward along the upper wall of the tunnel portion 4 b, and the rear end thereof. The portion is connected to the output shaft of the drive motor 30 disposed in the space between the center console and the upper surface of the tunnel portion 4b via a coupling 30a. The drive motor 30, the first transmission cable 24, the rolling gear 16 and the rack gear 15 can move the seat cushion 51 of the occupant seat 5 back and forth along the slide rail 63. Therefore, these drive motors 30, the first transmission cable 24, the rolling gear 16, and the rack gear 15 also constitute the seat slide mechanism 61. Specifically, the rotational force of the drive motor 30 is transmitted to the rolling gear 16 via the first transmission cable 24, and the rolling gear 16 rolls on the rack gear 15, whereby the seat cushion 51. The slide plate 64 attached to the lower surface of the occupant is moved back and forth along the slide rail 63 so that the front and rear position of the occupant seat 5 is adjusted.

  A seat slide that moves the occupant seat 5 back and forth by rotating the rolling gear 16 according to the rotational force transmitted from the drive motor 30 to the rolling gear 16 via the first transmission cable 24 as described above. The mechanism 61 and the seat lifting mechanism 62 that adjusts the vertical position of the occupant seat 5 by swinging and displacing the lift lever 23 in conjunction with the seat slide mechanism 61 are used for the occupant according to the physique of the occupant. A seat position adjusting device 6 that adjusts the installation state and the like of the seat 5 is configured.

  On the other hand, as shown in FIG. 5, the second transmission cable 25 extends further from the locking position by the locking tool 29 to the front side of the vehicle body, and its front end is connected to the movable floor device 8. . And the rotational force input into the one end part of the 2nd transmission cable 25 from the rotating shaft 21 is transmitted to the other end part side of this 2nd transmission cable 25, Therefore The worm | warm 31 mentioned later of the movable floor apparatus 8 becomes. It is configured to be rotationally driven. That is, the second transmission cable 25, the drive motor 30 that transmits a driving force to the second transmission cable 25, and the first transmission cable 24 correspond to an example of a drive mechanism.

  The movable floor device 8 includes a movable floor panel 7 (corresponding to an example of a movable floor portion) disposed on the upper surface of the floor panel 4 below the pedal 10 and slightly forward from the front edge of the seat 5. And a lifting mechanism 33 that moves the movable floor panel 7 up and down relative to the floor panel 4. In the first embodiment, the movable floor panel 7 is moved up and down in conjunction with the seat position adjusting device 6 as described above. Has been made.

  The movable floor panel 7 is a rectangular panel made of a hard synthetic resin plate or a steel plate. In the first embodiment, the movable floor panel 7 is composed of two front and rear panels connected by hinges. The movable floor panel 7 is placed on the foot when an occupant seated on the seat 5 operates the pedal 10, and the front panel swings around its front edge by the lifting mechanism 33. Therefore, it can be moved up and down.

  Specifically, as shown in FIG. 6, the movable floor panel 7 includes a first panel 71 that is lifted and lowered by the lifting mechanism 33, and a first end that is hinged to the rear end of the first panel 71. 2 panels 72. The first panel 71 is a rectangular panel made of a hard synthetic resin plate, a steel plate, or the like, and the size of the first panel 71 is not particularly limited. However, both feet of a passenger sitting on the seat 5 are placed. It is set to a size that can be done. The first panel 71 is pivotally supported on the inclined panel portion 4a of the floor panel 4 by hinge elastic support portions 34 that allow a predetermined dimensional error or assembly error at both ends in the vehicle width direction at the front end portion.

  The hinge elastic support part 34 includes a hinge support body 341 that is a so-called hinge, one end part of which is fastened to the upper surface of the front end part of the first panel 71 by a fastener 344, the other end part of the hinge support body 341, and a floor panel. 4 and an elastic pad 342 interposed between them, and the elastic pad 342 is configured to allow various dimensional errors and assembly errors. That is, the elastic pad 342 is formed in a plate shape from an elastic member such as rubber or elastomer, and is configured to allow dimensional errors and assembly errors by being elastically deformed. The hinge support body 341, the elastic pad 342, and the floor panel 4 are fastened together with the fasteners 345, so that the first panel 71 can have a dimensional error or an assembly error with respect to the inclined panel portion 4a of the floor panel 4. It is allowed to swing while allowing.

  The second panel 72 is a horizontally long rectangular panel made of a hard synthetic resin plate or a steel plate, and is preferably made of the same material as the first panel 71. The front end of the second panel 72 is rotatably connected to the rear end of the first panel 71 via hinges 73 disposed at both left and right ends in the vehicle width direction.

  The specific structure of the elevating mechanism 33 is not particularly limited as long as it can move the first panel 71 up and down, but in the first embodiment, a predetermined portion (for example, an intermediate) of the first panel 71 is used. The mechanism which raises / lowers the said 1st panel 71 substantially is rock | fluctuated by rocking | fluctuating the 1st panel 71 centering on the front-end edge by raising / lowering a part).

  That is, as shown in FIGS. 6 and 7, the elevating mechanism 33 includes a rotating shaft portion 331 that extends along the vehicle width direction below the first panel 71 and rotates forward and backward around a horizontal axis, and the rotating shaft portion. A swing arm 332 that is attached to both ends in the longitudinal direction of 331 and rotates integrally with the rotating shaft portion 331, a pair of left and right shaft brackets 333 that rotatably supports the rotating shaft portion 331 at both ends in the longitudinal direction, and these A holding mechanism 334 that is disposed on one side of the pair of left and right shaft brackets 333 and transmits the rotational driving force from the second transmission cable 25 to the rotating shaft portion 331 and supports the reverse driving force from the rotating shaft portion 331 (see FIG. 7 and FIG. 8). The elevating mechanism 33 is configured such that the rotational shaft portion 331 and the swing arm 332 are transmitted to the holding mechanism 334 from the second transmission cable 25 that is rotationally driven in conjunction with the position adjustment of the occupant seat 5. Is driven to rotate forward and reverse, and the movable panel 1 is moved up and down by swinging up and down the first panel 71 abutting against the tip of the swing arm 332, and the second transmission cable 25. When the rotation of the first panel 71 is stopped, the first panel 71 is positioned and held by the holding mechanism 334.

  The lifting mechanism 33 will be specifically described with reference to FIGS. 7 and 8A to 8C. FIG. 7 is an enlarged perspective view showing the lifting device, FIG. 8A is a plan view of the lifting mechanism, and FIGS. 8B and 8C are bb lines in FIG. It is a cc line sectional view.

  As shown in FIGS. 7 and 8, the rotary shaft portion 331 extends along the vehicle width direction and is rotatably attached to the inclined panel portion 4 a of the floor panel 4 below the first panel 71 by a shaft bracket 333. ing.

  As shown in FIGS. 7 and 8, the swing arm 332 has a substantially U-shape in plan view, and is fixed to both ends in the longitudinal direction of the rotation shaft portion 331 (see FIG. 1). As clearly shown in FIG. 8C, the swing arm 332 has a contact roller portion 332a rotatably attached to a tip portion on the first panel 71 side.

  The shaft bracket 333 is formed by bending a steel plate and functions as a so-called bearing. Of these shaft brackets 333, a holding mechanism 334 is disposed on the shaft bracket 333 provided on the tunnel portion 4 b side (the bracket 333 disposed on the left side in FIG. 1).

  The holding mechanism 334 transmits the driving force input from the second transmission cable 25 to the rotating shaft portion 331, and conversely, the reverse driving force input from the rotating shaft portion 331, for example, the load input to the movable floor panel 7. By supporting the reverse driving force based on the above, the transmission of the reverse driving force to the second transmission cable 25 is cut off. As shown in FIGS. 7 and 8, the holding mechanism 334 includes a worm 31 attached to the tip of the second transmission cable 25, and a worm wheel 32 that meshes with the worm 31. Is fixed to the rotating shaft portion 331, so that the driving force is transmitted between the worm wheel 32 and the rotating shaft portion 331. The worm 31 is elongated in the longitudinal direction of the vehicle body, and is attached to the shaft bracket 333 in a state of being engaged with the worm wheel 32. The worm 31 is provided with an engagement groove (not shown) along the circumferential surface before and after the engagement portion with the worm wheel 32, and the reverse is attached to the shaft bracket 333 in the engagement groove. By locking the U-shaped locking portion 333a, the worm 31 is prevented from falling off in the longitudinal direction of the vehicle body.

  In the first embodiment, as shown by a two-dot chain line in FIG. 2, a floor mat 35 is laid on the floor panel 4 and the movable floor device 8 to improve the appearance.

  In the above configuration, when the drive motor 30 is operated by operating a seat position adjustment switch (not shown), the rotational force is transmitted to the rolling gear 16 via the first transmission cable 24. Is driven to roll on the rack gear 15 so that the seat cushion 51 of the occupant seat 5 moves back and forth between a front position indicated by a solid line and a rear position indicated by a two-dot chain line in FIG. It will be.

  When the rolling gear 16 is rotationally driven in the direction indicated by arrow a in FIG. 4 in the direction in which the seat 5 is moved to the front side of the vehicle body, the seat is rotated in the direction b opposite to the rotational direction a of the rolling gear 16. The intermediate gear 22 and the drive gear 26 of the elevating mechanism 62 are rotationally driven, and the sector gear 23a is rotationally driven in the direction of the arrow c by the drive gear 26, whereby the tip end portion of the elevating lever 23 is swung and displaced in the upward direction. Thus, the seat cushion 51 is in a state close to the horizontal state. On the other hand, when the seat 5 is moved to the rear side of the vehicle body, the rolling gear 16, the intermediate gear 22, and the drive gear 26 are driven to rotate in the direction opposite to that during the forward movement, respectively. The seat cushion 51 is tilted forward and moved in a swinging direction in the direction in which the portion descends.

  Further, the rotational force of the intermediate gear 22 is transmitted to the movable floor device 8 via the second transmission cable 25 in accordance with the seat position adjusting operation by the seat position adjusting device 6, so that the occupant's foot is placed. The first panel 71 of the movable floor panel 7 is moved up and down by the lifting mechanism 33. When the seat cushion 51 of the seat 5 moves to the front position, the first panel 71 rises and becomes substantially horizontal as shown by the solid line in FIG. 9, and the seating posture of the occupant is accordingly adjusted accordingly. It changes to become an upright state. On the other hand, when the seat cushion 51 of the seat 5 is moved to the rear position, the first panel 71 descends and becomes an upwardly inclined state as shown by a two-dot chain line in FIG. The posture changes so as to be in a backward tilt state.

  When the movable floor panel 7 is positioned at a desired position by operating the adjustment switch and the drive motor 30 is stopped, the rotational driving of the first and second transmission cables 24 and 25 is also stopped and the seat 5 and The movable floor panel 7 stops. In this state, when an occupant's foot is placed on the movable floor panel 7 and a load is input to the movable floor panel 7, the load is applied as a reverse driving force via the swing arm 332 and the rotary shaft portion 331. Thus, the reverse driving force can be reliably supported by the holding mechanism 334. That is, the worm gear (holding mechanism 334) having the worm 31 and the worm wheel 32 smoothly transmits the driving force from the worm 31 to the worm wheel 32, but the reverse, that is, from the worm wheel 32 to the worm 31. The driving force transmission is cut off. Therefore, by configuring the holding mechanism 334 using the characteristics of the worm gear, the load input to the movable floor panel 7 can be reliably supported by the holding mechanism 334 with a simple configuration. For this reason, even when an occupant's foot is placed on the movable floor panel 7, the movable floor panel 7 is supported with high support rigidity while effectively suppressing the sinking and rattling of the movable floor panel 7. can do.

  Moreover, since the holding mechanism 334 is provided between the second transmission cable 25 and the movable floor panel 7 in the driving force transmission path from the drive motor 30 to the movable floor panel 7, the holding mechanism 334 The reverse driving force can be supported on the movable floor panel 7 side from the second transmission cable 25, and it is effective that the driving mechanism is reversed based on the reverse driving force and the movable floor portion sinks significantly. Can be prevented.

  That is, for example, when the holding mechanism 334 is provided between the second transmission cable 25 and the first transmission cable 24, torque acts on the second transmission cable 25 based on the reverse driving force to cause distortion. However, since the second transmission cable 25 is relatively long, distortion is accumulated over the entire length of the second transmission cable 25, and a relatively large twist is allowed for the entire length. Therefore, when the holding mechanism 334 is installed between the first and second transmission cables 24 and 25 as described above, for example, the movable floor when the second transmission cable 25 is twisted and the occupant's foot is placed. Since the sinking range of the panel 7 is increased, the holding mechanism 334 is positioned near the movable floor panel 7 in the drive transmission path as described above, for example, between the second transmission cable 25 and the movable floor panel 7, for example, It is preferably incorporated in the lifting mechanism 33 provided therebetween.

(Second Embodiment)
Next, a second embodiment of the movable floor device according to the present invention will be described. FIG. 10 is a side view showing a movable floor apparatus according to the second embodiment, and FIG. 11 is a perspective view of an elevating mechanism provided in the apparatus.

  In this 2nd Embodiment, since the structure of a raising / lowering mechanism, especially the structure of the holding mechanism integrated in this raising / lowering mechanism differ from the said 1st Embodiment, this point is demonstrated mainly.

  As shown in FIGS. 10 and 11, the elevating mechanism 133 according to the second embodiment includes a pair of left and right oscillating arms 135 that support the first panel 71 so as to elevate, and the oscillating arms 135 are freely oscillating. A pair of left and right brackets 136 supported on the bracket 136 and one of the brackets 136 is disposed on one of the brackets 136 to transmit the rotational driving force from the second transmission cable 25 to the swing arm 135 and reverse from the swing arm 135. A holding mechanism 137 that supports the driving force, and a guide mechanism 138 that is attached to both ends of the lower surface of the first panel 71 and guides the distal end portion of the swing arm 135 as the first panel 71 moves up and down.

  The swing arm 135 is configured such that the base end portion is pivotally supported by the bracket 136 and the distal end portion 135 a slides along the guide mechanism 138. One of the swing arms 135 is pivotally supported by the bracket 136 via a holding mechanism 137. The bracket 136 is formed by bending a steel plate into an L shape, and its bottom wall is joined to the floor panel 4 by a fastener so that the swing center axis of the swing arm 135 is along the vehicle width direction. Yes. A holding mechanism 137 is joined by a fastener to the inner surface of one of the brackets 136 to which the second transmission cable 25 is rotatably attached.

  When the second transmission cable 25 is rotationally driven, the holding mechanism 137 transmits the driving force input from the second transmission cable 25 to the swing arm 135, and conversely, is input from the swing arm 135. By supporting a reverse driving force, for example, a reverse driving force based on a load input to the movable floor panel 7, transmission of the reverse driving force to the second transmission cable 25 is interrupted. That is, the holding mechanism 137 according to the second embodiment is functionally similar to the holding mechanism 334 according to the first embodiment, but differs from the first embodiment in the specific configuration.

  The configuration of the holding mechanism 137 will be described with reference to FIGS. The holding mechanism 137 is a lock-type reverse driving force cut-off clutch. When the input shaft is rotated in either the forward or reverse direction, the output shaft is rotated forward or reverse along with this, and the output shaft is rotated even when the output shaft is rotated. The shaft is locked and configured not to transmit driving force to the input shaft. That is, as shown in FIG. 12 and FIG. 13, the holding mechanism 137 is connected to the second transmission cable 25 at one end, and the input shaft portion 140 rotates by receiving a driving force from the second transmission cable 25. An input-side rotating plate 141 that rotates integrally with the input shaft portion 140, and is disposed on the same axis as the input-side rotating plate 141, and is erected on the side surface as the input-side rotating plate 141 rotates. The output-side rotating plate 142 that rotates by engaging with the engaging pin 141a, and the output shaft that rotates integrally with the rotation of the output-side rotating plate 142 and transmits the rotational driving force to the swing arm 135. When the rotation of the output side rotating plate 142 is restricted in a state where the rotation of the input portion 140 and the input shaft portion 140 is stopped, the stopper piece 144 (one stopper) restricts the rotation of the output shaft portion 143. ), An unlocking protrusion 145 (corresponding to a releasing portion) for releasing the rotation restriction by the stopper piece 144 by the rotation of the input shaft portion 140, and the input / output shaft portions 140, 143. And a substantially cylindrical case 146 that is housed in a state in which the end portion is protruded.

  Specifically, as shown in FIG. 12, the input shaft portion 140 has an outer end portion connected to the second transmission cable 25 by a coupling 147 and an inner end portion that is the axis of the input side rotating plate 141. It is joined to. The input-side rotating plate 141 is a disk having a larger diameter than the output-side rotating plate 142, and the engaging pin 141a protrudes at an eccentric position on the side surface opposite to the side surface to which the input shaft portion 140 is joined. Yes. The engaging pin 141a is inserted into an engaging hole 142a formed in the thickness direction at an eccentric position of the output side rotating plate 142, and the input side rotating plate 141 is rotated by a predetermined angle (for example, about 10 degrees). The output side rotating plate 142 is set to rotate with the rotation of the input side rotating plate 141 by engaging with the peripheral edge of the engaging hole 142a.

  Further, on the side surface of the input side rotating plate 141 on which the engagement pin 141a is projected, a locking release projection 145 is projected at an eccentric position further outside the engagement pin 141a. In the second embodiment, the locking release protrusion 145 is disposed on the same straight line that passes through the center of the engaging pin 141a and the input side rotating plate 141. Further, the unlocking protrusion 145 is disposed outside the outer peripheral edge of the output-side rotating plate 142 in a side view, and thereby pivotally supports the output-side rotating plate 142 so as to protrude outward from the outer peripheral edge. The stopper piece 144 is configured to be engageable. The locking release protrusion 145 engages with the stopper piece 144 when the input-side rotating plate 141 rotates, and a gear-shaped locking groove 146a formed on the inner peripheral surface of the case 146. The stopper piece 144 that is locked to is released from the locked state.

  A pair of stopper pieces 144 are provided corresponding to the forward and reverse rotation directions of the output-side rotating plate 142, and are pivotally supported on the outer peripheral edge portion on the side surface of the output-side rotating plate 142. These stopper pieces 144 are arranged in a substantially square shape that is separated from each other toward the radially outer side of the output-side rotating plate 142, and restricts rotation in one direction of the output-side rotating plate 142 or in the opposite direction, respectively. It is supposed to be. For example, the stopper piece 144 arranged on the right side in FIG. 13 regulates the clockwise rotation of the output side rotating plate 142. The stopper piece 144 is urged by an elastic member made of a winding spring 148 so that the tip end portion is pressed against a locking groove 146 a provided on the inner peripheral surface of the case 146, and the locking release projection 145 By being pushed against this elastic force, the locked state is released. In particular, in the second embodiment, each stopper piece 144 has a tapered surface 144a at the tip, and moves in the locking groove 146a of the case 146 along the tapered surface 144a during the unlocking operation. The locked state with the locking groove 146a is easily released. The locking release projections 145 are disposed between the stopper pieces 144, and the input release rotation plate 141 rotates to cause the release release projections 145 to move in the rotation direction of the output rotation plate 142. The stopper piece 144 that restricts the rotation is engaged.

  In the initial state shown in FIG. 13, the holding mechanism 137 has the output shaft portion 143 and the output-side rotating plate in the initial state shown in FIG. 13 by locking the distal end portion of each stopper piece 144 to the locking groove 146 a of the case 146. 142 can restrict the rotation in both forward and reverse directions, thereby supporting the reverse driving force input from the output shaft portion 143.

  On the other hand, when the input shaft portion 140 rotates from the initial state shown in FIG. 13 (for example, rotates clockwise in the positive direction), the input-side rotating plate 141 and the engaging pin 141a provided on the rotating plate 141 are accompanied accordingly. The unlocking protrusion 145 also rotates, and before the engagement pin 141a is engaged with the peripheral edge of the engagement hole 142a, the unlocking protrusion 145 first rotates in the rotation direction. Engage with the restricting stopper piece 144. Along with this engagement, the stopper piece 144 is pushed by the locking release projection 145. Since the stopper piece 144 is locked at the leading end by the locking groove 146a, the rotating shaft of the stopper piece 144 is rotated. Is rotated slightly in the direction opposite to the rotation direction of the input side rotation plate 141 (when the rotation direction is clockwise, the stopper piece 144 is rotated counterclockwise). The locked state of is released.

  Subsequently, while maintaining the engaged state of the unlocking protrusion 145 and the stopper piece 144, as shown in FIG. 14, the engaging pin 141a is formed in the engaging hole 142a provided in the output-side rotating plate 142. Engage with the periphery. When the engaging pin 141a is engaged with the engaging hole 142a, the output side rotating plate 142 starts to rotate in the same direction as the input side rotating plate 141 as shown in FIG. As the output side rotating plate 142 rotates, the output shaft portion 143 rotates, whereby the rotational driving force input to the input shaft portion 140 is transmitted to the output shaft portion 143. At this time, the stopper piece 144 that is not engaged with the unlocking protrusion 145 among the stopper pieces 144 is drawn around the output-side rotating plate 142 while the tip is guided by the locking groove 146a of the case 146. become.

  Then, when the rotational drive of the second transmission cable 25 is stopped, the rotational drive of the input shaft portion 140 and the input side rotating plate 141 is also stopped, and the stopper piece 144 is urged by the urging force of the winding spring 148 that urges the stopper piece 144. However, the unlocking protrusion 145 is pushed back. Along with this, the input side rotating plate 141 and the input shaft portion 140 are slightly rotated counterclockwise, and the stopper piece 144 that has been pushed and engaged with the locking release projection 145 is attached to the winding spring 148. By the force, it is again locked in the locking groove 146a provided in the case 146, and the initial state is restored.

  In this manner, the holding mechanism 137 in the second embodiment transmits the driving force input from the input shaft portion 140 to the output shaft portion 143, and conversely supports the reverse driving force input from the output shaft portion. By doing so, the reverse drive force blocks transmission to the input shaft portion 140.

  On the other hand, the guide mechanism 138 for guiding the tip end portion of the swing arm 135 is guided by the guide rail 150 joined to the lower surfaces of both end portions in the width direction of the first panel 71 as shown in FIG. The guide roller 151 is provided.

  As shown in FIGS. 10 and 11, the guide rail 150 extends along the length direction of the first panel 71, and flanges 150 a provided at both ends in the longitudinal direction are fastened to the first panel 71 by fasteners. It is joined to the bottom surface. As shown in FIG. 16, the guide rail 150 is made of C-type steel or the like that opens to the outside in the width direction of the first panel 71, and supports the guide roller 151 so as to be slidable. The sliding range by the guide roller 151 is appropriately set according to the amount of elevation of the first panel 71. The guide roller 151 is supported by the tip portion 135a of the swing arm 135 so as to be rotatable around the rotation shaft portion 151a. In FIG. 16, a member indicated by 152 is a washer for preventing the removal.

  Also in the movable floor device 180 according to the second embodiment, the occupant's foot is placed on the positioned movable floor panel by the holding mechanism 137 including a so-called lock-type reverse driving force cutoff clutch. Even when a load is input to the panel, this load can be supported, and the movable floor panel is supported with high support rigidity while effectively suppressing the sinking and rattling of the movable floor panel. be able to. In addition, since the holding mechanism 137 is incorporated in the lifting mechanism 133 between the second transmission cable 25 and the movable floor panel 7 in the driving force transmission path, the reverse input to the movable floor panel 7 by the holding mechanism 137 is provided. The driving force can be supported on the front side where the second transmission cable 25 is transmitted, thereby effectively preventing the second transmission cable 25 from being twisted and the movable floor panel 7 from sinking based on the reverse driving force. be able to.

  Further, the stopper piece 144 restricts the rotation of the output side rotating plate 142 and the output shaft portion 143, thereby effectively blocking the transmission of the reverse driving force to the input shaft portion 140. Since it is provided with a locking release projection 145 that releases the rotation restriction by the stopper piece 144 by rotating, the movable floor panel 7 is moved by rotating the drive motor 30 and the first and second transmission cables 24 and 25. When moving up and down, the stopper piece 144 is released by the locking release projection 145, so that the stopper piece 144 can be reliably prevented from becoming an obstacle when the movable floor panel 7 is moved up and down. . That is, according to the holding mechanism 137, transmission of the reverse driving force to the input shaft portion 140 can be reliably blocked with a simple configuration.

(Third embodiment)
Next, a third embodiment of the movable floor device according to the present invention will be described. FIG. 17 is a side view showing the movable floor device according to the third embodiment.

  In this 3rd Embodiment, the structure of a raising / lowering mechanism, especially the structure of the holding mechanism integrated in this raising / lowering mechanism differ from the said 1st, 2nd embodiment.

  That is, the holding mechanism 237 according to the third embodiment is a combination of the holding mechanisms (worm gear and reverse driving force cutoff clutch) according to the first and second embodiments, and the output shaft of the worm wheel 32 is the above-described first. It has the structure connected with the input shaft part 140 of 2 embodiment. Since other configurations are the same as those of the first and second embodiments, the same reference numerals are given here, and the description thereof is omitted.

  Also in the movable floor device 280 according to the third embodiment, it is possible to support the reverse driving force based on the load input to the first panel 71 of the movable floor panel. The movable floor panel can be supported with high support rigidity while effectively suppressing rattling.

  In particular, according to the movable floor device 280 according to the third embodiment, the reverse driving force can be supported in two stages by the holding mechanism 137 configured as a reverse driving force cutoff clutch and the worm gears 31 and 32. Compared with the movable floor device according to the first and second embodiments, the movable floor panel is effectively prevented from sinking or rattling due to the gap between the stopper pieces 144 where the unlocking protrusions 145 are disposed. Thus, the movable floor panel can be supported with higher support rigidity.

(Fourth embodiment)
Next, a fourth embodiment of the movable floor device according to the present invention will be described. FIG. 18 is a side view showing a main part different from the first embodiment in the movable floor device according to the fourth embodiment.

  The fourth embodiment differs from the first embodiment in that a feed screw type lifting mechanism 433 is used as the lifting mechanism instead of the lifting mechanism 33 in the first embodiment.

  That is, the lifting mechanism 433 according to the fourth embodiment is movable by sliding the rear end edge of the second panel 72 sliding on the floor panel 4 back and forth as the movable floor panel 7 moves up and down. The floor panel 7 is configured to move up and down. The elevating mechanism 433 includes a feed screw 434 disposed in the longitudinal direction of the vehicle body and connected to the second transmission cable 25, a support bracket 435 that rotatably supports both longitudinal ends of the feed screw 434, and a feed screw 434. Comprises a slider 436 that moves back and forth by rotating forward and backward, and a mounting portion 438 that is attached to the rear end of the second panel 72 and pivotally supported on the slider 436 via a connecting rod 437. Is sent back and forth so that the movable floor panel 7 including the second panel 72 is moved up and down.

  The feed screw 434 is a long male screw member, and is supported by the support bracket 435 so as to be rotatable forward and backward in a state where movement in the longitudinal direction is restricted. The length of the feed screw 434 is appropriately set according to the range of up and down movement of the movable floor panel 7. The support bracket 435 has a pair of front and rear support portions 435a and a mounting plate 435b to which the lower end edge of the support portion 435a is attached. Both front and rear edges of the mounting plate 435b are attached to the upper surface of the floor panel 4 by fasteners. ing.

  As shown in FIG. 19, the slider 436 has a female screw hole 436a through which the male screw of the feed screw 434 can be screwed in the front and rear, and the support bracket in a state where the feed screw 434 is screwed into the female screw hole 436a. On the attachment plate 435b of 435, it is configured to be slidable between the support portions 435a. A fitting hole 436b into which the connecting rod 437 is fitted tightly is formed on the side surface of the slider 436 on the movable floor panel 7 side.

  The attachment portion 438 on which the connecting rod 437 is pivoted is joined to the lower surface of the rear end portion of the second panel 72. The mounting portion 438 includes a mounting body 438a having a U-shaped cross-sectional view opened to the slider 436 side, and an elastic bushing 438b tightly fitted inside the mounting body 438a, along the vehicle width direction. By inserting the connecting rod 437 into the insertion hole 438c formed in the elastic bush 438b, the relative position between the mounting portion 438 and the slider 436 is allowed to slide within a predetermined range. . In FIG. 19, a member indicated by 439 is a retaining washer attached to the connecting rod 437.

  Also in the movable floor device according to the fourth embodiment, the reverse driving force based on the load input to the first panel 71 of the movable floor panel 7 can be supported by the holding mechanism including the feed screw 434 and the slider 436. Accordingly, the movable floor panel 7 can be supported with high support rigidity while effectively suppressing the sinking and rattling of the movable floor panel 7.

(Other embodiments)
The movable floor apparatus described above is an embodiment included in the apparatus according to the present invention, and the specific configuration and the like of the apparatus can be changed as appropriate without departing from the spirit of the present invention. An example is described below.

  (1) In each of the above embodiments, in order to transmit a driving force from the drive motor 30 to the elevating mechanisms 33, 133, and 433, the rotary drive shaft portions 24a and 25a that have flexibility and are driven to rotate around the shaft center. However, the specific configuration of the transmission cable is not particularly limited.

  For example, as shown in FIG. 20, the transmission cables 24 and 25 of the first embodiment may be provided with a protective tube 25b that covers the rotational drive shaft portion. In this case, the rotation drive shaft portion (rotation drive shaft portion 25a in the illustrated example) is exposed from the protection tube 25b in the vicinity of the transmission target member (worm 31 in the illustrated example), and the protection tube 25b is provided at both ends of the exposed portion. It is comprised so that it may be supported by the support part 501 via.

  In FIG. 20, a worm wheel 32 that meshes with the worm 31 is provided above the worm 31, and the worm 31 and the worm wheel 32 are provided on the outer surface of the shaft bracket 333. This is different from the first embodiment.

  If comprised in this way, since the rotational drive shaft part 25a is coat | covered with the protection tube 25b, the influence by a transmission cable slidingly contacting another vehicle-mounted member between the drive motor 30 and a transmission object member is possible. There is an advantage that it can be suppressed.

  Further, the transmission cable may be provided with a rod 601 having a certain rigidity, as shown in FIG. 21, instead of the rotational drive shaft portion having flexibility. This rod 601 is disposed along the longitudinal direction of the vehicle body, one end is connected to the worm 31 constituting the holding mechanism 334, and the other end is disposed below the passenger seat via the worm gear. The drive motor 630 is connected via a worm gear.

  Even if comprised in this way, the driving force from drive sources, such as a drive motor, can be efficiently transmitted similarly to the transmission cable which has the rotational drive shaft parts 24a and 25a.

  (2) In each of the embodiments described above, the drive mechanism includes the drive motors 30 and 630 that generate the drive force, and the first and second transmissions that transmit the drive force generated by the drive motors 30 and 630 to the movable floor device 8. Although the cables 24 and 25 are provided, the specific configuration of the drive mechanism is not particularly limited.

  For example, the drive mechanism includes a slide operation mechanism that generates a drive force based on a swing operation of an operation lever by an occupant, and a drive force transmission cable that transmits the drive force generated by the slide operation mechanism to a movable floor device. It may be configured as follows.

  Specifically, as shown in FIG. 22, the drive mechanism replaces the drive motor 30 and the first transmission cable 24 of the first embodiment with a driving force based on the swing operation of the operation lever 731 by the occupant. A slide operation mechanism 701 is provided, and the intermediate gear 22 (corresponding to an example of an output gear) is rotationally driven by the drive force generated by the slide operation mechanism 701 to transmit the drive force to the seat position adjusting device 6. The driving force is transmitted to the movable floor device 8 via a driving force transmission cable 725 connected to the intermediate gear 22. The driving force transmission cable 725 is disposed in the same manner as the second transmission cable 25 of the first embodiment.

  As shown in FIGS. 23 and 24, the slide operation mechanism 701 is a first interposed rotatably between the intermediate gear 22 and the slide plate 64 with the intermediate gear 22 and the axis aligned with each other. An operation lever 731 (corresponding to an example of an operation lever) and a second operation lever 732 that is pivotally supported by the first operation lever 731 and includes a gripping portion that is gripped integrally with the gripping portion of the first operation lever 731. A locking piece 734 supported to be swingable about a horizontal shaft 733 projecting from the side surface of the first operation lever 731 and a guide member 735 for guiding the locking piece 734. Yes.

  The second operating lever 732 is engaged with a transmission wire 736 that transmits a driving force for unlocking to a lock piece (not shown) that engages and disengages the slide rail 63 and locks and releases the sliding displacement of the seat 5. ing. That is, when the first operation lever 731 and the second operation lever 732 are gripped together when the seat cushion 51 is slid in the longitudinal direction of the vehicle body by the slide operation mechanism 701, the transmission wire 736 transmits the lock to the lock piece. The lock piece is released in accordance with the driving force to be released, and the lock state of the seat cushion 51 in which the slide displacement is restricted by the lock mechanism including the lock piece is released.

  As shown in FIGS. 24 and 25, the locking piece 734 includes an engagement portion 738 provided with a pair of engagement holes 737 engaged with the teeth of the intermediate gear 22, and an inner end of the engagement portion 738. L-shaped portion 739 projecting from the portion (the end located on the inner side of the seat cushion 51) toward the upper inner side, and projecting inward from the inner end portion of the L-shaped portion 739 And a protruding portion 740 provided. By holding the engagement hole 737 of the locking piece 734 engaged with the teeth of the intermediate gear 22, the first operating lever 731 and the intermediate gear 22 are integrally connected via the locking piece 734. The turning operation force of the first operation lever 731 is input to the intermediate gear 22.

  The guide member 735 includes a support portion 742 that is swingably supported with a horizontal shaft 741 protruding from one slide plate 64 as a fulcrum, and a lower portion that protrudes downward from the outer end of the support portion 742. A side plate portion 743 having a constricted triangular shape, a V-shaped guide portion 744 provided along a lower side portion of the side plate portion 743, and a front end portion and a rear end portion of the guide portion 744 that protrude from the front end portion. Horizontal portions 745 and 746. In a normal state, the guide member 735 is held in a horizontal state according to the urging force of the urging member 747 made of a spiral spring that is externally fitted to the horizontal shaft 741, and the protrusion 740 of the locking piece 734 is guided. By being positioned at the center of the portion 744, the engagement hole 737 of the locking piece 734 is held in a state of being engaged with the teeth of the intermediate gear 22.

  When the first and second operation levers 731 and 732 of the slide operation mechanism 701 are gripped and swung, the seat cushion 51 is unlocked by the lock mechanism including a lock piece and the locking piece 734 is moved. In a state where the engagement hole 737 is engaged with the teeth of the intermediate gear 22, the rotational force of the first operation lever 731 is transmitted to the intermediate gear 22 via the locking piece 734 as shown in FIG. 26. As a result, the intermediate gear 22 is rotationally driven and the rotational force is transmitted to the rolling gear 16. The rolling gear 16 rolls on the rack gear 15 by a distance corresponding to the operation amount of the first operating lever 731. Will move. In this case, the guide member 735 is in a state where the horizontal portion 746 on the rear end side is pushed down against the urging force of the urging member 747 by the protrusion 740 of the locking piece 734.

  When the second lever 732 is returned and the first operation lever 731 is swung in a direction to return to the initial position, the engagement of the locking piece 734 is performed according to the urging force of the urging member 747 as shown in FIG. The portion 738 is driven in a direction away from the teeth of the intermediate gear 22, and the connection state between the first operation lever 731 and the intermediate gear 22 is released. For this reason, it is possible to shift the locking piece 734 to the state shown in FIG. 25 by returning the first operation lever 731 to the initial position without applying a reverse rotation force to the intermediate gear 22. By repeating this operation, the slide plate 64 and the seat cushion 51 are slid in the longitudinal direction of the vehicle body along the slide rail 63 within a preset range.

  Even when the swing operation of the first operation lever 731 is stopped halfway and the engagement state between the locking piece 734 and the intermediate gear 22 is released, the guide member 735 is urged in the horizontal direction. Since the locking piece 734 is disengaged from the teeth of the intermediate gear 22 in accordance with the urging force of the urging member 747, the first operation lever 731 is reversed from the first operation lever 731 to the intermediate gear 22 when the first operation lever 731 is returned to the initial position. It is prevented that force is applied.

  (3) In each of the above embodiments, the positioning support mechanism 80 that supports the movable floor panel 7 with respect to the floor panel 4 is provided separately from the lifting mechanism 33 at the stop position when the drive mechanism is stopped. It is good.

  For example, as shown in FIG. 28, a positioning support mechanism 80 may be provided in the movable floor device 8 of the first embodiment.

  That is, as shown in FIG. 28, the positioning support mechanism 80 includes a slide rail 81 disposed along the vehicle longitudinal direction, a slider 82 that slides back and forth along the slide rail 81, and the length of the slide rail 81. A stopper 83 that is fixed slightly rearward in the center of the direction and restricts the sliding movement of the slider 82, and one end is pivotally supported by the front end portion of the slider 82 and the other end is pivotally supported by the lower surface rear end portion of the first panel 71. Link support arm 84.

  A plurality of slide rails 81 may be provided, but in this modification, a single one is provided below the substantially central portion of the first panel 71 in the width direction. As shown in FIG. 30, the slide rail 81 is formed in a substantially C-shaped cross section, and is configured such that the arm mounting portion 82a of the slider 82 can protrude through the upper opening.

  28 and 30, the slider 82 is configured as a long member having an inverted T-shaped cross section having a length approximately half the length of the slide rail 81, and as shown in FIG. A slide roller 82b that rolls along the bottom wall of the slide rail 81 is provided on the lower surface thereof. As shown in FIG. 30, an arm mounting portion 82a is projected from the front end portion of the slider 82, and the lower end portion of the link support arm 84 is pin-coupled to the arm mounting portion 82a.

  A rack gear 82 c extending along the longitudinal direction of the slider 82 is formed at the upper end of the slider 82.

  The stopper 83 is separated from the upper storage chamber 83b through a case 83a whose internal space is vertically divided, an electromagnet 83e stored in the upper storage chamber 83b of the case 83a, and a communication hole 83d formed in the partition plate of the case 83a. And a locking piece 83f disposed over the lower storage chamber 83c. The locking piece 83f is biased downward by a downward pressing of a flange 83i provided at the lower portion thereof by a coil spring 83h. In addition, the electromagnet 83e is attracted to the electromagnet 83e against the urging force by energizing an electromagnetic coil (not shown) of the electromagnet 83e. A plurality of locking claws 83g arranged side by side in the front-rear direction are provided at the lower end of the locking piece 83f, and the locking claws 83g are configured to be able to mesh with the rack gear 82c of the slider 82. The stopper 83 regulates the movement of the slider 82 by engaging the locking claw 83 with the rack gear 82c.

  The electromagnet 83e has its electromagnetic coil (not shown) connected to a power source (not shown), and this power source is ON / OFF controlled by a control unit (not shown), thereby engaging and disengaging the locking piece 83f with respect to the rack gear 82c. It is configured as follows. The timing of energization of the electromagnet 83e by the control unit is synchronized with the drive timing of the drive motor 30. Therefore, when the drive motor 30 is driven, the engagement of the locking claw 83g with the rack gear 82c is released, and the slider 82 is placed in a slidable state. On the other hand, when the drive motor 30 is not driven, the locking claw 83g is engaged with the rack gear 82c, and the slider 82 is placed in the slide restriction state.

  The link support arm 84 is pivotally supported at the lower end portion thereof by the arm support portion 82a of the slider 82, and the upper end portion thereof is pivotally supported by a mounting bracket attached to the rear end portion of the lower surface of the first panel 71. As a result, the slider 82 and the first panel 71 are linked to each other.

  If comprised in this way, in addition to the effect of the said 1st Embodiment, without stopping the drive mechanism by the positioning support mechanism 80, without stopping the raising / lowering movement of the movable floor panel 7 by the raising / lowering mechanism 33, the drive mechanism stops the drive mechanism. Since the rear end portion of the first panel 71 can be supported at the position with respect to the floor panel 4, the support rigidity of the movable floor panel 7, particularly the first panel 71, can be further increased.

It is a perspective view which shows 1st Embodiment of the movable floor apparatus which concerns on this invention. It is a side view which shows a sheet position adjustment apparatus with the same apparatus. It is a top view which shows a sheet position adjustment apparatus with the same apparatus. FIG. 4 is an enlarged perspective view showing a main part of the seat position adjusting device. It is a top view which shows the principal part of a sheet position adjustment apparatus. It is a side view which expands and shows a movable floor apparatus. It is a perspective view which shows the raising / lowering mechanism including the holding mechanism of the apparatus. (A) is a top view of the raising / lowering mechanism of the apparatus, (b), (c) is the bb line of FIG. (A), cc line sectional drawing. It is a side view which shows the use condition of the apparatus. It is a side view which shows 2nd Embodiment of the movable floor apparatus which concerns on this invention. It is a perspective view which shows the raising / lowering mechanism including the holding mechanism of the apparatus. It is a cross-sectional view which shows the holding mechanism of the apparatus. It is a longitudinal cross-sectional view which shows the holding mechanism of the apparatus. It is a longitudinal cross-sectional view which shows the use condition of the holding mechanism of the apparatus. It is a longitudinal cross-sectional view which shows the use condition of the holding mechanism of the apparatus. It is sectional drawing which shows the guide mechanism of the apparatus. It is a perspective view which shows the principal part of 3rd Embodiment of the movable floor apparatus which concerns on this invention. It is a perspective view which shows the principal part of 4th Embodiment of the movable floor apparatus which concerns on this invention. It is sectional drawing which shows the slider and attachment part of the apparatus. It is a side view which shows the modification of the movable floor apparatus which concerns on this invention. It is a top view which shows the other modification of the movable floor apparatus which concerns on this invention. It is a side view which shows the modification of the drive mechanism of the apparatus. It is a side view which expands and shows the modification. It is a perspective view which shows the modification. It is a perspective view which shows the use condition of the modification. It is a perspective view which shows the use condition of the modification. It is a perspective view which shows the use condition of the modification. It is a side view which shows the other modification of the movable floor apparatus which concerns on this invention. It is sectional drawing of the positioning support mechanism of the modification. It is sectional drawing of the positioning support mechanism of the modification.

Explanation of symbols

4 Floor panel (fixed floor)
5 Seat for passenger 6 Seat position adjustment device 7 Movable floor panel (movable floor)
8 Movable floor device 24 First transmission cable (driving force transmission means)
24a Rotation drive shaft 25 Second transmission cable (drive force transmission means)
25a Rotation drive shaft 30,630 Drive motor (drive source)
31 Worm 32 Worm wheel 33 Elevating mechanism 71 First panel 72 Second panel 331 Rotating shaft 332 Swing arm 333 Shaft bracket 334 Holding mechanism

Claims (11)

A movable floor portion disposed in a foot placement region of an occupant seated on a seat on a fixed floor portion extending in the longitudinal direction of the vehicle body, and raising and lowering that moves the movable floor portion up and down with respect to the fixed floor portion In a movable floor device of an automobile provided with a mechanism and a drive mechanism for driving the lifting mechanism,
A movable floor device for an automobile, wherein a holding mechanism for positioning and holding the movable floor portion at the stop position in a state where the drive mechanism is stopped is provided between the drive mechanism and the movable floor portion. .   The drive mechanism includes a drive source that generates a drive force, and a drive force transmission unit that transmits the drive force generated by the drive source to the lifting mechanism, and the holding mechanism includes the drive force transmission unit and the movable floor. The movable floor device for an automobile according to claim 1, wherein the movable floor device is provided between the movable portion and the vehicle.   The drive force transmission means has a long rotation drive shaft portion, and is configured to transmit the drive force from the drive source by rotating the rotation drive shaft portion around the axis. The movable floor apparatus for an automobile according to claim 2, wherein   The holding mechanism includes an input shaft portion that rotates when a driving force is input from the drive mechanism, an output shaft portion that engages with the input shaft portion and rotates as the input shaft portion rotates, and the input A stopper for restricting rotation of the output shaft portion in a state where the shaft portion is not rotating, and a release portion for releasing rotation restriction by the stopper by rotating the input shaft portion. The movable floor apparatus of the motor vehicle according to any one of claims 1 to 3.   5. The holding mechanism according to claim 1, further comprising: a worm that is rotationally driven by the driving mechanism; and a worm wheel that meshes with the worm and transmits a rotational driving force to the lifting mechanism. The movable floor apparatus for automobiles according to any one of the preceding claims.   The elevating mechanism includes a rotating shaft portion that rotates forward and backward around a horizontal axis, and a swing arm portion that is attached to the rotating shaft portion and supports the movable floor portion so that the movable floor portion can be raised and lowered. The movable floor apparatus for an automobile according to any one of claims 1 to 5, wherein the movable floor apparatus is connected to a mechanism.   The positioning support mechanism for supporting the movable floor portion with respect to the fixed floor portion at the stop position in a state where the driving mechanism is stopped is provided separately from the lifting mechanism. 6. A movable floor device for an automobile according to 6.   The movable floor of an automobile according to any one of claims 1 to 7, wherein one of the front and rear end edges of the movable floor is pivotally supported by the fixed floor. apparatus.   9. The automobile according to claim 1, wherein the elevating mechanism is configured to be driven in conjunction with a seat position adjusting mechanism that adjusts the position of the seat. 10. Movable floor device.   The drive mechanism includes an operation lever that is swung by an occupant, and when the operation lever is swung in a predetermined direction from an initial posture, the drive mechanism is engaged with the operation lever and the swinging force is used as a rotational driving force. And an output gear for releasing the engagement of the swinging force by releasing the engagement with the control lever when the control lever is swung in a direction to return to the initial posture. The movable floor device for an automobile according to any one of claims 1 to 9.   The movable floor apparatus for an automobile according to any one of claims 1 to 9, wherein the drive mechanism is a drive motor that is driven by an occupant input operation.

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