JP2013099468A - Ottoman apparatus for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an ottoman apparatus for vehicle which can reduce a limitation for positioning space.SOLUTION: An adjusting mechanism 20 switches movement so as to hold an ottoman 6 in a case where the ottoman is in a retracted state, allow the operation in a deploying direction in an adjusting region to a maximally deployed state of the ottoman 6, and engagingly stop the operation in the retracting direction and allow the operation in the retracting direction in a case where the ottoman 6 is further operated in the deploying direction from the maximally deployed state and changes the operation to allow the ottoman 6 to return to the retracted direction. The ottoman apparatus further includes a hook rotatably connected to a bracket 61 and a striker pin fixed to a main pivot link 64 and configured to hook the hook in a case where the ottoman 6 is in the retracted state to lock an operation of the ottoman 6 in the deploying direction.

Description

  The present invention relates to a vehicle ottoman device for adjusting an ottoman provided on a seat.

  Conventionally, as this kind of ottoman device for vehicles, what was indicated, for example in patent documents 1 is known. As shown in FIG. 15, in this apparatus, a bracket 92 is fixed to the front end portion of the side portion of the seat cushion 91, and an ottoman 94 is connected to the bracket 92 via a link mechanism 93. The link mechanism 93 constitutes a so-called pantograph link, and the ottoman 94 is unfolded by being protruded forward of the seat, and is stored by being folded backward of the seat.

  The link mechanism 93 transmits the operating force of the operation knob via the brake device 95 including a so-called two-way rotary clutch mechanism and the transmission mechanism including the pinion 96 and the sector gear 97, so that the ottoman 94 is developed. • Operates to be stored. Therefore, the posture of the ottoman 94 can be adjusted by rotating the operation knob.

JP 2009-240350 A

  By the way, in Patent Document 1, the operation knob must be arranged on the side surface of the connecting portion of the link mechanism 93 on the seat cushion 91 side (bracket 92 side), and the arrangement space is forced to be restricted in the seat width direction.

  The objective of this invention is providing the ottoman apparatus for vehicles which can ease the restrictions of arrangement | positioning space more.

  In order to solve the above-mentioned problem, the invention according to claim 1 is provided between a seat cushion and an ottoman, holds the ottoman when the ottoman is in a retracted state, and reaches a maximum deployed state of the ottoman. In the adjustment region, the operation in the deployment direction of the ottoman is allowed and the operation in the storage direction is locked, and when the ottoman is further operated in the deployment direction from the maximum deployment state, the operation in the storage direction of the ottoman is performed. An adjustment mechanism that switches the operation so as to allow it and allows the operation to switch back to the retracted state of the ottoman, a first member on the seat cushion side between the seat cushion and the ottoman, and a second member on the ottoman side A hook rotatably connected to one of the members and fixed to the other of the first member and the second member The striker pin that is hooked in the retracted state of the ottoman to stop the operation of the ottoman in the deployment direction, and the first member or the second member to which the striker pin is fixed are provided. And the hook is guided by the striker pin when the ottoman is further operated in the retracted direction in the retracted state of the ottoman so that the operation of the ottoman in the unfolding direction is permitted. The pin is rotated to the unlockable position where the pin can be released, and is guided by the contact member in accordance with the operation of the ottoman in the unfolding direction to the locked position where the striker pin can be hooked in the retracted state of the ottoman. The striker pin is rotated in the retracted state of the ottoman with the operation in the retracted direction of the ottoman allowed by the adjusting mechanism. And it is required to hook.

  According to this configuration, in the adjustment area of the ottoman, the adjustment mechanism allows the operation of the ottoman in the deployment direction up to the maximum deployment state and locks the operation in the retracted direction. Therefore, the ottoman can be adjusted by operating the ottoman in the unfolding direction. Thereby, for example, the operation knob for adjusting the ottoman can be eliminated, and the restriction on the arrangement space can be further relaxed.

  Further, the retracted state of the ottoman is also maintained by hooking the striker pin by the hook in the locked position in addition to the adjusting mechanism. Therefore, the stored state of the ottoman can be more firmly maintained by these cooperation.

  When the ottoman is further operated in the retracted direction with the ottoman retracted, the hook guided by the striker pin can release the striker pin so as to allow the ottoman to operate in the unfolding direction. It rotates to the unlock position. Thereby, adjustment in the adjustment area | region of the said ottoman by the said adjustment mechanism is attained.

  When the ottoman is actuated in the unfolding direction, the hook guided by the contact member rotates to the locked position where the striker pin can be hooked in the ottoman retracted state. Therefore, after that, when the ottoman is operated in the retracted direction allowed by the adjusting mechanism, the hook in the locked position engages the striker pin in the retracted state of the ottoman and moves in the ottoman deploying direction. Lock the operation. Thereby, the stored state of the ottoman can be held again by the hook and the striker pin.

  According to a second aspect of the present invention, in the ottoman device for a vehicle according to the first aspect, the hook is pivotally urged to the locked position when the ottoman is stored, and the ottoman is stored when the ottoman is stored. When the hook is further guided in the direction, the hook is turned over with the rotation of the hook guided by the striker pin, and the hook is pivoted to the unlocked position so that the ottoman is actuated in the unfolding direction. Accordingly, the present invention includes a reversing spring that turns over with the rotation of the hook guided by the contact member and urges the hook to the lock position.

  According to this configuration, in the ottoman retracted state, the reversing spring makes the ottoman retracted state more stable by rotating and biasing the hook that hooks the striker pin to the lock position. Can be held in a state. When the ottoman is further operated in the retracted direction in the retracted state of the ottoman, the reversing spring turns over and urges the hook to rotate to the unlock position. Thereby, the operation | movement to the expansion | deployment direction of the said ottoman can be started in the more stable state. Thereafter, when the ottoman is operated in the unfolding direction, the reversing spring turns over and urges the hook to rotate to the locked position. Therefore, after that, when the ottoman is operated in the storage direction allowed by the adjustment mechanism, the hook can be more smoothly hooked on the striker pin in the storage state of the ottoman.

  According to a third aspect of the present invention, in the ottoman device for a vehicle according to the first or second aspect, the ottoman is pivotally connected to an attachment member fixed to the seat cushion via an arm member. It is supported by a seat cushion, and the gist is that the first member is the mounting member and the second member is the arm member.

  According to this configuration, the hook and the striker pin are disposed on the attachment member or the arm member that is closest to the seat cushion, so that an assembly error with respect to the seat cushion is suppressed, so that the height is higher. Can work with accuracy.

  According to a fourth aspect of the present invention, in the vehicle ottoman device according to any one of the first to third aspects, a locking member provided on one of the first member and the second member; Provided on the other of the first member and the second member, one leg is locked to the first or second member, and the other leg is fixed to the locking member in the retracted state of the ottoman. A biasing means for generating a biasing force that causes the ottoman to operate in the unfolding direction when the other leg is pressed against the locking member when the ottoman is further operated in the retracting direction when being abutted or approached; The main point is that

  According to this configuration, when the ottoman is deployed in the retracted state, the operation of the ottoman that rotates the hook to the unlock position so as to allow the operation (further operation in the retracting direction). Accordingly, an urging force for operating the ottoman in the deploying direction can be generated in the urging means. Accordingly, the operation of the ottoman in the deployment direction can be assisted by the biasing means in accordance with the release of the operation lock in the deployment direction of the ottoman by the hook or the like, and the ottoman can be smoothly moved in the deployment direction. Can be operated.

  Further, since the other leg portion of the urging means is in contact with or close to the locking member in the retracted state of the ottoman, the ottoman in the retracted state is actuated in the retracted direction due to the influence of, for example, vehicle vibration. When trying to do so, an urging force is generated against the urging means. Therefore, it is possible to reduce the possibility that the hook and the striker pin are unlatched. Alternatively, when the ottoman is in the retracted state, it is possible to avoid the occurrence of an urging force that operates the ottoman in the deployment direction in the urging means.

  According to the present invention, it is possible to provide a ottoman device for a vehicle that can further alleviate restrictions on the arrangement space.

The perspective view of the sheet | seat with which this invention is applied. The side view explaining operation | movement of one Embodiment of this invention. The perspective view which shows the same embodiment. The perspective view which shows the same embodiment. (A) is sectional drawing along the AA line of (b), (b) is sectional drawing along the BB line of (a). Exploded perspective view showing the adjustment mechanism of the embodiment. (A) is the side view seen from the seat width direction inner side which shows the locking mechanism of the embodiment, (b) is sectional drawing along CC line of (a). (A) is the side view seen from the sheet | seat width direction outer side which shows the repulsion spring of the embodiment, (b) is sectional drawing along the DD line of (a). (A) (b) is explanatory drawing which shows operation | movement of a lock mechanism and an adjustment mechanism when an ottoman further operate | moves in the storing direction from the storing state. (A) (b) is explanatory drawing which shows operation | movement of a locking mechanism and an adjustment mechanism when an ottoman exists in an adjustment area | region. Explanatory drawing which shows the operation | movement at the time of the inversion start of an adjustment mechanism. Explanatory drawing which shows the operation | movement at the time of the inversion completion of an adjustment mechanism. (A) (b) is explanatory drawing which shows operation | movement of a locking mechanism and an adjustment mechanism when an ottoman is storing. (A) (b) is explanatory drawing which shows operation | movement of the locking mechanism and adjustment mechanism just before an ottoman returns to a storage state. The schematic diagram which shows a conventional form.

  An embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 1, a seat 1 that forms a seating portion for an occupant is installed on the vehicle floor. The seat 1 is supported by a seat cushion 2 that forms a seating surface, a seat back 3 that is tiltably (rotatably) supported by a rear end portion of the seat cushion 2, and an upper end portion of the seat back 3. A headrest 4; a pair of armrests 5 disposed on both sides in the seat width direction at a height intermediate portion of the seat back 3; and an ottoman 6 supported by the front end portion of the seat cushion 2 so as to be tiltable (rotatable). It is configured with. In the seat 1, the inclination angle of the seat back 3 with respect to the seat cushion 2 can be adjusted, and the inclination angle of both armrests 5 with respect to the seat back 3 can be adjusted. Further, the seat 1 can adjust the inclination angle of the ottoman 6 with respect to the seat cushion 2. Thereby, the seated person of the said seat 1 can adjust a seating attitude | position according to the comfort calculated | required, for example.

  Next, the ottoman 6 and its peripheral structure will be described. As shown in FIG. 2, for example, a first member made of a metal plate and a bracket 61 as an attachment member are fixed to the front end portion of the seat cushion side frame 2 a made of, for example, a metal plate, which forms a skeleton of the side portion of the seat cushion 2. Has been. A support bracket 62 made of, for example, a metal plate that supports the ottoman 6 is connected to the bracket 61 via a link mechanism 63. Each support shaft of the link mechanism 63 has an axis extending in the sheet width direction.

  The link mechanism 63 constitutes a so-called pantograph link. The main rotation link 64, the sub-rotation link 65, the first swing link 66, and the second swing link 67 as the second member and the arm member. With. One end of the main rotation link 64 is rotatably connected to the upper end of the bracket 61, and the other end is rotatably connected to one end of the first swing link 66. ing. The other end of the first swing link 66 is rotatably connected to the tip of the support bracket 62.

  The sub-rotation link 65 has one end rotatably connected to the lower end of the bracket 61 and the other end rotatably connected to one end of the second swing link 67. ing. The other end of the second swing link 67 is rotatably connected to the base end of the support bracket 62. In addition, the longitudinal direction intermediate part of the 2nd rocking | linkage link 67 is connected with the longitudinal direction intermediate part of the main rotation link 64 so that rotation is possible.

  Then, for example, when the main rotating link 64 rotates clockwise from the state extending substantially downward, the first and second swing links 66 and 67 are moved forward of the seat as depicted by a two-dot chain line in the drawing. The ottoman 6 that is protruded and supported by the support bracket 62 is developed. On the other hand, when the main rotation link 64 rotates counterclockwise in the drawing from the unfolded state of the ottoman 6 (the state in which the main rotation link 64 extends substantially forward), the first and second swing links 66 and 67 are moved. The ottoman 6 that is folded rearward of the seat and supported by the support bracket 62 is stored.

  3 and 4, a bracket 61 fixed to the seat cushion side frame 2a, a support bracket 62, and a link mechanism 63 (a main rotation link 64, a sub rotation link 65, a first and a second link). The swing links 66 and 67) are arranged in pairs on both sides in the sheet width direction. The main pivot links 64 on both sides are connected so as to operate integrally by a substantially cylindrical connecting rod 68 that bridges them in the seat width direction, and the first swing links 66 on both sides are connected in the seat width direction. Are connected to each other by a substantially cylindrical connecting rod 69 that bridges them.

  As shown in FIG. 3, one end of a main rotation link 64 (hereinafter also referred to as “main rotation link 64 </ b> R”) on one side (right side toward the front of the seat) and a bracket 61 (hereinafter “ A disc-shaped adjusting mechanism 20 is interposed between the upper end of the bracket 61R). That is, one end portion of the main rotation link 64R is rotatably connected to the upper end portion of the bracket 61R via the adjustment mechanism 20.

  Further, as shown in FIG. 4, the main rotation link 64 (hereinafter also referred to as “main rotation link 64L”) on the opposite side (left side toward the front of the seat) and the bracket 61 (hereinafter referred to as “bracket 61L”) on that side. ”Is also provided with a lock mechanism 70.

  Here, the inclination angle of the ottoman 6 with respect to the seat cushion 2 will be described. As shown in FIG. 2, the main rotation link 64 extends substantially downward together with the support bracket 62 (ottoman 6) at the rotation position of the main rotation link 64 that correlates with the inclination angle θ1 of the ottoman 6 with respect to the seat cushion 2. A running range Z11 from a predetermined storage position B0 to a predetermined first boundary position B1 where the main rotation link 64 extends obliquely forward and downward, and the main rotation link 64 from the first boundary position B1 substantially forward. Adjustment range Z12 to a predetermined second boundary position B2 extending, idle running range Z13 from the second boundary position B2 to a predetermined reversal position B3 from which the main rotation link 64 extends substantially obliquely upward, and storage A release range Z14 from the position B0 to a predetermined release position B4 where the main rotation link 64 extends rearward and obliquely downward is set.

  In the adjustment range Z12, the adjustment mechanism 20 allows the main rotation link 64 to rotate clockwise from the first boundary position B1 to the second boundary position B2, that is, upward movement of the ottoman 6, and reverse rotation. The rotation (counterclockwise in the figure), that is, the downward movement of the ottoman 6 is locked. The rotation position of the main rotation link 64, that is, the inclination angle θ1 of the ottoman 6 can be adjusted and held in multiple steps (seven steps in this embodiment) for each predetermined angle. That is, the adjustment range Z12 of the main rotation link 64 corresponds to an adjustment region in which the inclination angle θ1 of the ottoman 6 can be adjusted.

  On the other hand, in the run-up range Z11, the adjustment mechanism 20 allows the main rotation link 64 to rotate in both directions, that is, to move the ottoman 6 up and down. Similarly, in the idling range Z13, the adjustment mechanism 20 allows the main rotation link 64 to rotate in both directions, that is, to move the ottoman 6 up and down. In particular, after the main rotation link 64 reaches the reverse position B3, the operation is switched by the adjustment mechanism 20 so that the ottoman 6 is allowed to move downward in the adjustment range Z12. In the release range Z14, the adjustment mechanism 20 allows the main rotation link 64 to rotate in both directions.

  The storage position B0 of the main rotation link 64 corresponds to the storage state of the ottoman 6, and the second boundary position B2 corresponds to the maximum deployment state of the ottoman 6. In the retracted state of the ottoman 6, the lock mechanism 70 locks the operation of the ottoman 6 in the unfolding direction (rotation of the main rotation link 64 toward the first boundary position B1). The lock mechanism 70 is released by rotating the main rotation link 64 toward the release position B4 in order to further operate the ottoman 6 in the retracted direction (push-in direction).

  Next, the adjustment mechanism 20 will be described. As shown in FIGS. 5A and 5B, the adjustment mechanism 20 includes a disk-shaped first bracket 21 and a second bracket 31 that extend in the sheet width direction with a center line (axis line) O1. The first bracket 21 is fixed to, for example, the main rotation link 64R (ottoman 6 side), and the second bracket 31 is fixed to the bracket 61R (seat cushion 2 side).

  The first bracket 21 is formed, for example, by half blanking (half blanking) of a metal plate. The first bracket 21 has a circular outer peripheral surface 22 centered on the center line O1 and is substantially circular opened to the second bracket 31 side. The recess 23 is provided. The recess 23 is shaped point-symmetrically (rotationally symmetric) with respect to the center line O 1, and has a pair of release wall portions 51 on both sides of the inner wall surface sandwiching the center line O 1, and an arcuate surface shape continuous to the release wall portion 51. A running wall portion 52, a ratchet inner tooth portion 24 continuing to the running wall portion 52, an arcuate surface running wall portion 25 continuing to the ratchet inner tooth portion 24, and an empty running wall opposite to the release wall portion 51 The switch wall part 26 which protrudes in the centerline O1 side between the part 25 is integrally included. Further, the first bracket 21 has a substantially cylindrical spring pressing wall portion 27 that protrudes toward the second bracket 31 at the periphery including the center line O1.

  In addition, the cancellation | release wall part 51 inclines so that it may go to a radial direction outer side as it goes to the illustration clockwise separation spaced apart from the run-up wall part 52. FIG. Further, the wall surface on the side adjacent to the release wall portion 51 of the switching wall portion 26 protrudes so that the base end portion extends linearly closer to the release wall portion 51 than the direction toward the center line O1, and the bracket side return wall A portion 28 is formed. On the other hand, the wall surface of the switching wall portion 26 adjacent to the idle running wall portion 25 protrudes so that the base end portion extends in a curved shape closer to the idle running wall portion 25 than the direction toward the center line O1, and is inverted on the bracket side. A wall portion 29 is formed.

  The second bracket 31 is formed, for example, by half-cutting a metal plate, and has a circular recess 32 that opens to the first bracket 21 side, as shown in FIG. The recess 32 has an inner peripheral surface 33 having an inner diameter equivalent to the outer diameter of the outer peripheral surface 22 of the first bracket 21. The inside of the recess 32 is shaped point-symmetrically (rotationally symmetric) with respect to the center line O1, and the second bracket 31 has a substantially oval shape recessed from the center of the recess 32 to the opposite side of the first bracket 21. A spring accommodating portion 34 is provided. A pair of bracket-side spring locking holes 35 extending substantially parallel to the center line O1 are formed in the spring accommodating portion 34, and a pair of substantially cylindrical shapes are formed on the outer edge of the spring accommodating portion 34. A pole shaft portion 36 protrudes, and a pair of substantially columnar pole support portions 37 protrudes adjacent to the pole shaft portion 36. The protruding directions of the pole shaft portion 36 and the pole support portion 37 are set substantially parallel to the center line O1.

  As shown in FIG. 5B, the first bracket 21 is fitted on the outer peripheral surface 22 so as to be in sliding contact with the inner peripheral surface 33 of the second bracket 31. A ring shape made of a metal plate with the outer peripheral surface 22 of the first bracket 21 and the inner peripheral surface 33 of the second bracket 31 fitted to the outer peripheral portions of the first and second brackets 21 and 31. The holding member 30 is mounted. The first and second brackets 21 and 31 are prevented from coming off in the axial direction in a state in which relative rotation is allowed by the holding member 30, and a storage space S is formed between them. That is, the accommodation space S is partitioned by the inner wall surface of the recess 23 of the first bracket 21 and the outer wall surface of the spring pressing wall portion 27, the inner wall surface of the recess 32 of the second bracket 31, and the inner wall surface of the spring accommodation portion 34. Yes. It should be noted that the pole shaft portion 36 and the pole support portion 37 of the second bracket 31 are within the relative rotation range of the first and second brackets 21 and 31 (the rotation of the main rotation link 64 correlated with the inclination angle θ1 of the ottoman 6). The moving position corresponds to the range from the release position B4 to the reversal position B3), and is disposed so as to fit in the recess 23 of the first bracket 21.

  In the accommodation space S, a pair of poles 41 made of, for example, steel are accommodated. That is, both poles 41 are accommodated in the accommodation space S mainly using the range of the recess 32 in the axial direction. As shown in FIG. 6, the pole 41 has a circular bearing hole 42 that is pivotally supported by the pole shaft portion 36, and claw-shaped poles that extend in the radially opposite directions centering on the bearing hole 42. It has pawls 43 and pole-side reversal walls 44 as side return walls. Note that a pole-side spring locking hole 45 extending substantially parallel to the center line O1 is formed in the extending portion 41a extending in the radial direction from an intermediate angular position between the pawl portion 43 of the pole 41 and the pole-side reversing wall portion 44. Is formed.

  Further, in the accommodation space S, a pair of pole reversing springs 46 made of, for example, a torsion spring is accommodated using the space of the spring accommodating portion 34. The pole reversing spring 46 has a coil portion 47 extending in the axial direction substantially parallel to the center line O1. Further, the pole reversing spring 46 is bent from the end of the coil portion 47 on the side separated from the second bracket 31 to be substantially parallel to the center line O1 and is fitted into the bracket-side spring locking hole 35. And a second leg portion 49 that is bent substantially parallel to the center line O1 from the end of the coil portion 47 that is separated from the pole 41 and is fitted into the pole-side spring locking hole 45. That is, the first and second leg portions 48 and 49 are fixed to the bracket-side spring locking hole 35 and the pole-side spring locking hole 45 so as to cover the outer peripheral portion of the coil portion 47.

  Therefore, as shown in FIG. 5A, in the accommodation space S, a plurality of sets (two sets) including the pole 41 and the pole reversing spring 46 are arranged in a rotationally symmetrical manner in the accommodation space S. Yes. In addition, the coil part 47 arrange | positioned at the spring accommodating part 34 is controlled by the axial direction because the spring pressing wall part 27 of the 1st bracket 21 contact | abuts or adjoins.

  Next, the lock mechanism 70 will be described. As shown in FIGS. 7A and 7B, the lock mechanism 70 is made of, for example, a metal plate that is rotatably connected to a bracket 61L around the support axis Ax1 at one end of the sub-rotation link 65. A hook 71 is provided. The hook 71 includes a first extension portion 72 and a second extension portion 73 that extend forward and rearward with the support shaft Ax1 interposed therebetween. At the lower end of the first extension portion 72, a hook-like hook portion 72a is formed. And the 1st extension part 72 inclines the lower surface behind hook part 72a linearly, and forms the 1st inversion cam surface 72b. Moreover, the 1st extension part 72 forms the 2nd inversion cam surface 72c by extending the upper surface of the hook part 72a linearly. Furthermore, the first extension portion 72 forms a locking cam surface 72d by linearly inclining a tip end surface thereof connected to the hook portion 72a. On the other hand, an elongated locking hole 73a extending in the circumferential direction around the support shaft Ax1 is formed at the tip of the second extending portion 73.

  A substantially cylindrical locking pin 74 projecting from the bracket 61L is inserted through the locking hole 73a of the second extending portion 73 in parallel with the support shaft Ax1. Therefore, the rotation range of the hook 71 around the support shaft Ax1 with respect to the bracket 61L is from a rotation position where the lower surface of the locking hole 73a abuts on the locking pin 74 (hereinafter also referred to as “the locking position of the hook 71”). The upper surface of the locking hole 73 a is limited to a range up to a rotation position where the upper surface of the locking hole 73 a comes into contact with the locking pin 74 (hereinafter also referred to as “an unlock position of the hook 71”).

  A substantially cylindrical locking pin 75 projects from the distal end portion of the first extending portion 72 in parallel with the support shaft Ax1. One end portion and the other leg portion of the reversing spring 76 made of, for example, a tension coil spring are engaged with the distal end portion and the engagement pin 75 penetrating the engagement hole 73a of the engagement pin 74, respectively. Yes. The reversing spring 76 extends below the support shaft Ax1 when the hook 71 is in the locked position, and thereby urges the hook 71 to be held in the locked position. On the other hand, the reversing spring 76 turns over when the hook 71 is in the unlock position and extends above the support shaft Ax1, thereby rotating the hook 71 so that the hook 71 is held in the unlock position. Energize.

  A substantially cylindrical striker pin 77 projects from the main rotation link 64L in parallel with the support shaft Ax1. The striker pin 77 is fitted into the hook portion 72a of the hook 71 at the lock position when the ottoman 6 is in the retracted state shown in FIG. That is, in the retracted state of the ottoman 6, the hook 71 is hooked on the striker pin 77 so that the operation of the ottoman 6 in the unfolding direction is locked. In the vicinity of the support shaft Ax2 of the main rotation link 64L, the main rotation link 64L can come into contact with the second reversing cam surface 72c when the main rotation link 64L rotates counterclockwise in the drawing toward the second boundary position B2. A claw-shaped reversing cam portion 78 as a contact member is formed.

  As shown in FIGS. 8 (a) and 8 (b), a repulsion spring 81 as a biasing means made of, for example, a spiral spring is wound around the support shaft Ax2 at one end of the main rotation link 64L. . The inner peripheral leg portion 82 of the repulsion spring 81 is locked to an arcuate wall-shaped locking portion 86 projecting from the bracket 61L in parallel with the support shaft Ax2. On the other hand, a substantially cylindrical locking pin 87 as a locking member protrudes from the main rotation link 64L in parallel with the support shaft Ax2. And the leg part 83 of the outer peripheral side of the repulsion spring 81 is in contact with or close to the locking pin 87 when the ottoman 6 is in the retracted state shown in FIG. 8, and the main rotation link 64L is at the release position B4. It arrange | positions so that the turning locus | trajectory of the anticlockwise direction which turns may be interrupted. Therefore, when the ottoman 6 is further operated in the retracted direction in the retracted state, the repulsion of the leg 83 on the outer peripheral side being pressed against the locking pin 87 as the main rotating link 64L rotates counterclockwise in the figure. The spring 81 is tightened, and an urging force for rotating the main rotation link 64L in the clockwise direction in the drawing, that is, an urging force for operating the ottoman 6 in the deploying direction is generated in the repulsive spring 81. In other words, the repulsion spring 81 prevents the ottoman 6 from further operating in the retracted direction within the range of the urging force when the ottoman 6 is in the retracted state.

  With such a configuration, the relative rotational positions of the first and second brackets 21 and 31 when the ottoman 6 is in the retracted state and the main rotation link 64 is in the retracted position B0 are shown in FIG. It is in the state shown. At this time, the pole 41 is urged to rotate counterclockwise (hereinafter also referred to as “positive direction”) around the pole shaft portion 36 (bearing hole 42) by the pole reversing spring 46, and its pawl is stopped. The part 43 is brought into contact with the vicinity of the boundary position between the release wall part 51 and the running wall part 52. Further, as shown in FIG. 7, the state of the lock mechanism 70 at this time is a state in which the striker pin 77 is hooked on the hook 71 that is rotationally biased by the reversing spring 76 and held in the lock position. ing. Furthermore, the state of the repulsion spring 81 at this time is such that the outer peripheral leg 83 abuts on or closes to the locking pin 87 as shown in FIG.

  Therefore, when the ottoman 6 is held in the stored state (main rotation link 64 is stored at the storage position B0), the frictional force between the first and second brackets 21 and 31 and the locking mechanism 70 are applied in the unfolding direction. This is realized in cooperation with the stopping force, and the storage direction is realized in cooperation with the frictional force between the first and second brackets 21 and 31 and the urging force of the repulsion spring 81.

  In this state, it is assumed that the ottoman 6 is operated (pushed in) in the retracted direction and the main rotation link 64 is rotated toward the release position B4 against the urging force of the repulsion spring 81. In this case, as shown in FIG. 9A, the hook 71 guided by the striker pin 77 on the first reversing cam surface 72b rotates about the support shaft Ax1 in the counterclockwise direction in the drawing, and the reversing spring 76 is moved. Turn over. As a result, the hook 71 is urged to rotate by the reversing spring 76 so as to hold the unlock position. At this time, the hook portion 72a of the hook 71 is set so as to deviate from the counterclockwise turning locus of the striker pin 77 around the support shaft Ax2. As a result, the main rotating link 64 is allowed to rotate counterclockwise as shown in the figure, and the ottoman 6 can be operated in the unfolding direction. In addition, when the ottoman 6 starts the operation in the deploying direction, the operation is assisted by the urging force of the repulsion spring 81.

  On the other hand, the relative rotational positions of the first and second brackets 21 and 31 when the main rotation link 64 is at the release position B4 are in the state shown in FIG. 9B. That is, as the first bracket 21 rotates counterclockwise with respect to the second bracket 31, the pawl portion 43 of the pole 41 that is urged to rotate by the pole reversing spring 46 is located near the end of the release wall portion 51. Abut. That is, the adjustment mechanism 20 does not hinder further operation of the ottoman 6 in the retracted state in the retracted direction.

  When the operation of the ottoman 6 in the unfolding direction is enabled, the main rotation link 64 moves away from the striker pin 77 from the hook 71 and the rotation position reaches the adjustment range Z12 via the run-up range Z11. To do. At this time, the repulsion spring 81 released from the locking pin 87 and the leg portion 83 is elastically restored to a free state. In particular, when the main rotation link 64 reaches the state shown in FIG. 10A, the reverse cam portion 78 starts to press the second reverse cam surface 72c of the hook 71, so that the second reverse cam surface 72c is reversed. The hook 71 guided by the cam portion 78 rotates around the support shaft Ax1 in the clockwise direction in the drawing, and the reversing spring 76 turns over. As a result, the hook 71 is urged to rotate by the reversing spring 76 so as to hold the lock position.

  On the other hand, when the rotation position of the main rotation link 64 is within the adjustment range Z12, the relative rotation positions of the first and second brackets 21 and 31 are the pawl portions 43 of the pole 41 as shown in FIG. Is in a state capable of meshing with the ratchet inner tooth portion 24. Therefore, the first bracket 21 ends from the relative rotational position where the pawl portion 43 of the pole 41 that is urged to rotate in the forward direction by the pole reversing spring 46 meshes with the first tooth portion 24a of the ratchet inner tooth portion 24. In the range up to the relative rotation position that meshes with the stepped tooth portion 24b, the second bracket 31 can rotate clockwise in the figure and cannot rotate counterclockwise in the figure.

  That is, the relative rotational positions of the first and second brackets 21 and 31 mesh with the final tooth portion 24b from the relative rotational position where the pawl portion 43 meshes with the initial tooth portion 24a of the ratchet inner tooth portion 24. It can be adjusted and held in stages in the range up to the relative rotational position. And the rotation position of the main rotation link 64 can also be adjusted and held stepwise in accordance with this. The relative rotational position of the first and second brackets 21 and 31 when the pawl portion 43 of the pole 41 meshes with the first stage tooth portion 24a of the ratchet inner tooth portion 24 is the first boundary position B1 of the main rotation link 64. It corresponds to. The relative rotation positions of the first and second brackets 21 and 31 when the pawl portion 43 of the pole 41 meshes with the final tooth portion 24 b of the ratchet inner tooth portion 24 are the second rotational positions of the main rotation link 64. This corresponds to the boundary position B2.

  When the main rotation link 64 further rotates from the second boundary position B2 toward the inversion position B3, and the first bracket 21 further rotates clockwise with respect to the second bracket 31, as shown in FIG. The pawl portion 43 of the pole 41 tries to slide over the idle wall portion 25 over the final tooth portion 24b of the ratchet inner tooth portion 24. At the same time, the pole 41 rotates in the clockwise direction in the figure against the urging force of the pole reversing spring 46 when the pole reversing wall 44 starts to be pressed against the bracket reversing wall 29 of the switching wall 26. Start to move.

  Then, when the main rotation link 64 further rotates from the second boundary position B2 toward the reversal position B3, and the first bracket 21 further rotates clockwise in the figure with respect to the second bracket 31, it is shown in FIG. As described above, the pole reversing spring 46 is turned over as the pole 41 is further rotated clockwise. As a result, the pole 41 is rotated and biased clockwise by the pole reversing spring 46 around the pole shaft portion 36 (bearing hole 42) (hereinafter also referred to as “reverse direction”). That is, the pole 41 is reversed so as to be urged to rotate in the reverse direction by the pole reversing spring 46.

  When the pole 41 is inverted, the pole-side inversion wall portion 44 is held by the pole support portion 37 and is prevented from rotating. Thus, in the state in which the pole 41 is inverted, the pole 41 is detached from the concave portion 23 and the like (the first bracket 21), and the second bracket 31 is rotated by the pole 41 in the clockwise direction in the figure with respect to the first bracket 21 ( (Return rotation) is not hindered. The relative rotation position of the first and second brackets 21 and 31 when the pole 41 is reversed corresponds to the reversal position B3 of the main rotation link 64.

  When the main rotation link 64 rotates between the second boundary position B2 and the reverse position B3 (idle running range Z13), the hook 71 biased by the reverse spring 76 remains held at the lock position. The repulsion spring 81 also maintains a free state.

  When the main rotation link 64 rotates (returns rotation) toward the storage position B0 with the pole 41 reversed, as shown in FIG. 13A, the reversing cam portion 78 of the main rotation link 64 is The second reversing cam surface 72c of the hook 71 at the lock position passes as it is. Then, the striker pin 77 of the main rotation link 64 abuts on the locking cam surface 72d of the hook 71 at the lock position. At this time, as shown in FIG. 13B, the pole 41 remains in the inverted state in which it is detached from the recess 23 or the like (the first bracket 21).

  When the main rotation link 64 further rotates (returns) toward the storage position B0, as shown in FIG. 14A, the hook 71 guided to the striker pin 77 on the locking cam surface 72d is formed. The reversing spring 76 swings counterclockwise around the support shaft Ax1 within a range in which the reversing spring 76 is not turned over. Then, when the striker pin 77 passes through the locking cam surface 72d, the hook 71 that is rotationally biased by the reversing spring 76 is returned to the locked position while the striker pin 77 is fitted into the hook portion 72a (FIG. 7 ( a)).

  On the other hand, when the hook 71 swings in a range that does not turn over the reversing spring 76, as shown in FIG. 14B, the first bracket 21 is rotated counterclockwise with respect to the second bracket 31 as shown. Thus, the pawl portion 43 of the pole 41 starts to be pressed against the bracket side return wall portion 28 of the switching wall portion 26. The pole 41 starts to rotate counterclockwise in the figure against the urging force of the pole reversing spring 46. Then, when the first bracket 21 further rotates counterclockwise (return rotation) with respect to the second bracket 31, the pole reversing spring 46 is moved along with the further rotation of the pole 41 counterclockwise in the illustration. After the turnover, the pole 41 is urged to rotate in the positive direction by the pole reversing spring 46 (see FIG. 5A). Needless to say, the relative rotation positions of the first and second brackets 21 and 31 at this time correspond to the storage position B0 of the main rotation link 64.

Next, the operation will be described on the assumption that the main rotation link 64 is in the storage state of the ottoman 6 disposed at the lowermost storage position B0.
As described above, when the main rotation link 64 is in the storage position B0, the striker pin 77 is hooked on the hook 71 that is rotated and biased by the reversing spring 76 and held in the lock position. At this time, the pole 41 that is urged to rotate in the forward direction by the pole reversing spring 46 abuts the pawl 43 near the boundary position between the release wall 51 and the running wall 52.

  In this state, when the ottoman 6 is operated in the retracted direction and the main rotation link 64 is rotated toward the release position B4 against the biasing force of the repulsion spring 81, the hook 71 guided by the striker pin 77 is provided. The reversing spring 76 turns over with the swinging motion. Then, the hook 71 and the striker pin 77 that are pivotally biased so as to hold the unlock position by the reversing spring 76 are released. Thereby, the rotation of the main rotation link 64 toward the adjustment range Z12 is allowed, and the operation of the ottoman 6 in the deploying direction becomes possible. At this time, the pawl portion 43 of the pole 41 that is urged to rotate in the forward direction by the pole reversing spring 46 slides on the release wall portion 51. In addition, when the ottoman 6 starts the operation in the deploying direction, the operation is assisted by the urging force of the repulsion spring 81.

  In this state, when the ottoman 6 is actuated (moved upward) in the unfolding direction and the main rotation link 64 is rotated toward the first boundary position B1, it is urged to rotate in the forward direction by the pole reversing spring 46. The pawl portion 43 of the pole 41 to be slid on the running wall portion 52. Accordingly, it becomes possible to quickly move up (bounce up) the ottoman 6 in cooperation with the assistance by the repulsion spring 81.

  When the ottoman 6 is operated in the unfolding direction and the main rotation link 64 is rotated toward the adjustment range Z12, the pawl portion 43 of the pole 41 that is urged to rotate in the forward direction by the pole reversing spring 46 is The approach wall portion 52 enters and meshes with the ratchet inner tooth portion 24. Then, when the ottoman 6 is moved up in a range where the main rotation link 64 is within the adjustment range Z12, the pawl portion 43 of the pole 41 sequentially meshes with the tooth portion of the ratchet inner tooth portion 24. Thereby, stepwise adjustment / holding of the inclination angle θ1 of the ottoman 6 in the range where the main rotation link 64 is within the adjustment range Z12 becomes possible. When the main rotation link 64 rotates in the adjustment range Z12, the reversing spring 76 turns over with the swing of the hook 71 guided by the reversing cam portion 78. The hook 71 is urged to rotate by the reversing spring 76 so as to hold the lock position.

  When the ottoman 6 is operated in the unfolding direction in the unfolded state in which the inclination angle θ1 of the ottoman 6 is adjusted and held, the main rotation link 64 rotates to the inversion position B3, so that the pole 41 is a pole reversing spring. 46 is reversed so as to be urged to rotate in the reverse direction. Then, the pole 41 is detached from the first bracket 21. Thereby, for example, the ottoman 6 can be quickly actuated (downwardly moved) in the retracted direction.

  When the main rotation link 64 reaches the storage position B0 with the operation of the ottoman 6 in the storage direction, along with the swinging of the hook 71 guided by the striker pin 77 within a range not turning over. The hook 71 is engaged with the striker pin 77. Thereby, the action | operation to the expansion | deployment direction of the ottoman 6 is latched. At the same time, the pole 41 is reversed (returned) so as to be urged to rotate in the positive direction by the pole reversing spring 46.

As described above in detail, according to the present embodiment, the following effects can be obtained.
(1) In this embodiment, in the adjustment area of the ottoman 6 (adjustment range Z12 of the main rotation link 64), the adjustment mechanism 20 allows the operation of the ottoman 6 in the deployment direction up to the maximum deployment state and the storage direction. The operation to is locked. Therefore, the ottoman 6 can be adjusted by operating the ottoman 6 in the unfolding direction. Thereby, for example, the operation knob for adjusting the ottoman 6 can be made unnecessary, and the restriction on the arrangement space can be more relaxed.

  The retracted state of the ottoman 6 is also maintained by hooking the striker pin 77 by the hook 71 in the locked position in addition to the frictional force in the adjusting mechanism 20. Therefore, the stored state of the ottoman 6 can be more firmly held by these cooperations, and the possibility that the ottoman 6 is deployed due to the influence of, for example, vehicle vibration can be reduced.

  When the ottoman 6 is further operated in the retracted direction while the ottoman 6 is retracted, the hook 71 guided by the striker pin 77 can release the striker pin 77 so as to allow the ottoman 6 to operate in the unfolding direction. Rotate to the unlocked position. As a result, the adjustment mechanism 20 can adjust the ottoman 6 in the adjustment region.

  When the ottoman 6 is actuated in the unfolding direction, the hook 71 guided by the reversing cam portion 78 rotates to a lock position where the striker pin 77 can be hooked in the retracted state of the ottoman 6. Therefore, after that, when the ottoman 6 is operated in the retracted direction allowed by the adjusting mechanism 20, the hook 71 in the locked position hooks the striker pin 77 in the retracted state of the ottoman 6, and the ottoman 6 is moved in the deploying direction. Lock operation. Thereby, the retracted state of the ottoman 6 can be held again by the hook 71 and the striker pin 77.

  (2) In this embodiment, when the ottoman 6 is stored, the reversing spring 76 rotates and biases the hook 71 that hooks the striker pin 77 to the locked position, thereby further stabilizing the stored state of the ottoman 6. Can be held in the state. When the ottoman 6 is further actuated in the retracted direction with the ottoman 6 retracted, the reversing spring 76 turns over and urges the hook 71 to turn to the unlock position. Thereby, the operation | movement to the expansion | deployment direction of the ottoman 6 can be started in the more stable state. Thereafter, when the ottoman 6 is operated in the unfolding direction, the reversing spring 76 turns over and urges the hook 71 to rotate to the locked position. Therefore, after that, when the ottoman 6 is operated in the storage direction allowed by the adjustment mechanism 20, the hook 71 can be more smoothly hooked on the striker pin 77 in the storage state of the ottoman 6.

  (3) In the present embodiment, the hook 71 and the striker pin 77 are disposed on the bracket 61 and the main rotation link 64 that are closest to the seat cushion 2, so that an assembly error with respect to the seat cushion 2 is suppressed. Can operate with higher accuracy.

  (4) In this embodiment, when the ottoman 6 is deployed in the retracted state, the operation of the ottoman 6 that rotates the hook 71 to the unlocked position so as to allow the operation (further operation in the retracting direction). ), The urging force that operates the ottoman 6 in the unfolding direction can be generated in the repulsion spring 81. Accordingly, in accordance with the release of the operation lock of the ottoman 6 in the deployment direction by the hook 71 or the like, the operation of the ottoman 6 in the deployment direction can be assisted by the repulsion spring 81, and the ottoman 6 can be smoothly operated in the deployment direction. Can be made.

  Further, since the leg 83 of the repulsion spring 81 abuts or approaches the locking pin 87 in the retracted state of the ottoman 6, for example, when the ottoman 6 in the retracted state tries to operate in the retracting direction due to the influence of vehicle vibration or the like. The repulsion spring 81 generates an urging force against this. Therefore, it is possible to reduce the possibility that the hook 71 and the striker pin 77 are unlatched. Or, when the ottoman 6 is in the retracted state, it is possible to avoid the urging force that operates the ottoman 6 in the deploying direction in the repulsion spring 81.

  (5) In this embodiment, the pawl 41 in which the pawl portion 43 meshes with the ratchet inner tooth portion 24 of the first bracket 21 is between the first and second brackets 21, 31 regulated in the axial direction by the holding member 30. It arrange | positions in the accommodation space S formed. For this reason, it can control that these ratchet inner teeth part 24 and pawl part 43 shift in the direction of an axis, and holds tilt angle theta 1 (rotation position of main rotation link 64) of ottoman 6 in the more stable state. be able to. In addition, the structure for adjusting / holding the inclination angle θ1 of the ottoman 6 can be made extremely simple including the pole 41 and the pole reversing spring 46 arranged in the accommodation space S.

  (6) In this embodiment, the coil portion 47 of the pole reversing spring 46 has an axial direction parallel to the axial direction (center line O1) of the first and second brackets 21 and 31, for example, Compared with the case where the radial direction is parallel to the axial direction of the first and second brackets 21, 31, the direction can be more compactly arranged.

  (7) In this embodiment, a plurality of sets (two sets) including the pole 41 and the pole reversing spring 46 as one set are arranged in a rotational symmetry (point symmetry) in the accommodation space S. Therefore, for example, the adjustment / holding of the inclination angle θ1 of the ottoman 6 can be more firmly performed by the plurality of sets of poles 41 and the like. Further, the plurality of sets of poles 41 and the like are arranged so as to be rotationally symmetric in the accommodation space S in a mode that mainly uses the range of the recess 32 in the axial direction, thereby adjusting and maintaining the inclination angle θ1 of the ottoman 6. When doing so, the load can be evenly distributed in the rotational direction.

  (8) In the present embodiment, the spring pressing wall portion 27 of the first bracket 21 holds the coil portion 47 of the pole reversing spring 46 in the axial direction between the spring holding portion 34 of the second bracket 31, The floating of the coil portion 47 can be suppressed.

  (9) In this embodiment, the first and second leg portions 48 and 49 of the pole reversing spring 46 are bent so as to cover the outer peripheral portion of the coil portion 47, so that the coil portion 47 is not tilted. Can be suppressed.

  (10) In the present embodiment, when the ottoman 6 is moved up from the retracted state so that the main rotation link 64 moves from the retracted position B0 toward the adjustment range Z12, momentum can be applied to the approaching range Z11. The ottoman 6 can be smoothly deployed.

In addition, you may change the said embodiment as follows.
In the above embodiment, the support shaft Ax1 of the sub-rotation link 65 is also used as the rotation shaft of the hook 71, but they may be provided individually. In this case, the rotation axis of the hook 71 is not necessarily arranged coaxially with the support axis Ax1 of the sub-rotation link 65.

  In the embodiment, the hook 71 and the striker pin 77 of the lock mechanism 70 are the bracket 61, the support bracket 62, the main rotation link 64, the sub rotation link 65, the first swing link 66, and the second swing link 67. Any one of the two members may be disposed.

  In the embodiment, the repulsion spring 81 and the locking pin 87 are any of the bracket 61, the support bracket 62, the main rotation link 64, the sub rotation link 65, the first swing link 66, and the second swing link 67. Or two members.

In the above-described embodiment, the reversing cam portion 78 is integrally formed with the main rotation link 64, but a contact member separate from the main rotation link 64 may be used.
In the embodiment, the reversing spring 76 may be a leaf spring, for example. In short, it is sufficient that the hook 71 can be turned over so as to be reversed between the locked position and the unlocked position. Further, for example, if the hook 71 can be held at the lock position / unlock position only by the frictional force, the reversing spring 76 may be omitted.

In the embodiment, the first bracket 21 may be fixed to the seat cushion 2 side, and the second bracket 31 may be fixed to the ottoman 6 side.
In the embodiment, the adjustment mechanism 20 includes the bracket 61 and the main rotation link 64, the bracket 61 and the sub rotation link 65, the main rotation link 64 and the first swing link 66, and the main rotation link 64. And between the second swing link 67, between the auxiliary swing link 65 and the second swing link 67, between the first swing link 66 and the support bracket 62, and between the second swing link 67 and the support bracket 62. What is necessary is just to provide in the connection part of a location. However, it is more preferable to arrange at the connecting portion between the bracket 61 and the main rotation link 64 or between the bracket 61 and the sub rotation link 65 on the seat cushion 2 side.

In the above-described embodiment, the pawl portion 43 is also used as the pole-side return wall portion. However, a pole-side return wall portion may be provided separately from the pawl portion 43.
In the embodiment, the pole reversing spring 46 may be a leaf spring, for example. In short, it is sufficient that the pole 41 can be turned over so as to be reversed.

  -In the said embodiment, the structure of the adjustment mechanism 20 is an example. For example, a so-called spring coupler may be employed as the adjustment mechanism. In short, any configuration that can adjust and hold the ottoman 6 according to the operation of the ottoman 6 may be used.

  -In the said embodiment, the support structure of the ottoman 6 to the seat cushion 2 side is an example. For example, the ottoman 6 may be moved up and down by a cantilevered arm that is pivotally connected to the seat cushion 2 side (bracket 61) via an adjustment mechanism.

Next, the technical idea that can be grasped from the above embodiment and other examples will be described below.
(A) In the ottoman device for vehicles according to any one of claims 1 to 4,
The adjustment mechanism is
A first bracket integrally including a release wall, a ratchet internal tooth, a bracket-side reversing wall, and a bracket-side return wall;
A second bracket that is supported by the first bracket by forming a housing space with the first bracket, and that is capable of adjusting the ottoman with relative rotation with respect to the first bracket;
A holding member for restricting the first and second brackets in the axial direction;
A pole pivotally supported by the second bracket around an axis parallel to the axial direction of the first and second brackets in the accommodating space;
A pole reversing spring in which one leg is locked to the second bracket in the housing space, and the other leg is locked to the pole;
The pole
When the pole reversing spring is urged to rotate in the forward direction, the ottoman is retracted by allowing relative rotation in both directions of the first and second brackets by sliding the release wall portion. This allows the ottoman to further operate in the retracted direction, and allows the relative rotation in one direction of the first and second brackets by engaging with the inner teeth of the ratchet and relative rotation in the other direction. Pawls by regulating movement,
At the time of relative rotation of the first and second brackets in the one direction, the first and second brackets are reversed so as to be urged to rotate in the reverse direction by the pole reversing spring by contacting the bracket-side reversing wall. A pole-side reversal wall that allows relative rotation of the first and second brackets in the other direction;
At the time of relative rotation of the first and second brackets in the other direction, the first and second brackets are returned so as to be urged to rotate in the positive direction by the pole reversing springs by coming into contact with the bracket side return wall. A vehicle seat adjustment device having a pole-side return wall portion integrally therewith.

  According to this configuration, the first and second brackets are configured such that when the pawl is urged to rotate in the positive direction by the pawl reversing spring, the pawl portion slides on the release wall portion. The relative rotation in both directions is permitted, and the ottoman is allowed to further operate in the retracted direction in the retracted state of the ottoman. The first and second brackets move in the one direction when the pawl is meshed with the ratchet inner tooth when the pawl is urged to rotate in the forward direction by the pole reversing spring. Relative rotation is allowed. Therefore, the ottoman can be adjusted and held in stages as the first and second brackets rotate relative to each other in the one direction.

  On the other hand, when the first and second brackets are rotated relative to each other in the one direction, the pole-side reversing wall portion of the pole abuts against the bracket-side reversing wall portion, and the pole is used for reversing the pole. Relative rotation in the other direction is allowed by reversing so as to be urged to rotate in the opposite direction by the spring. Therefore, the posture of the ottoman can be quickly adjusted with the relative rotation of the first and second brackets in the other direction. When the first and second brackets are relatively rotated in the other direction, the pole-side return wall portion of the pole comes into contact with the bracket-side return wall portion, so that the pole is the pole reversing spring. Thus, the ottoman can be held again in the retracted state by returning to the positive direction.

  In particular, the pawl with which the pawl portion meshes with the ratchet inner tooth portion of the first bracket is disposed in the accommodating space formed between the first and second brackets restricted in the axial direction by the holding member. Therefore, the ratchet inner tooth portion and the pawl portion can be prevented from being displaced in the axial direction, and the ottoman can be held in a more stable state. Further, the structure for adjusting / holding the ottoman can be made very simple including the pole disposed in the accommodation space and the pole reversing spring.

  DESCRIPTION OF SYMBOLS 2 ... Seat cushion, 6 ... Ottoman, 20 ... Adjustment mechanism, 21 ... 1st bracket, 31 ... 2nd bracket, 24 ... Ratchet internal tooth part, 28 ... Bracket side return wall part, 29 ... Bracket side inversion wall part , 30 ... holding member, 41 ... pole, 43 ... pawl, 44 ... pole side reversing wall, 46 ... pole reversing spring, 51 ... release wall, 61 ... bracket (first member, mounting member), 64 ... main rotation link (second member, arm member), 70 ... lock mechanism, 71 ... hook, 72b ... first reverse cam surface, 72c ... second reverse cam surface, 76 ... reverse spring, 77 ... striker pin, 78 ... Reversing cam part (contact member), 81 ... Repulsion spring (biasing means), 82, 83 ... Leg part, 87 ... Locking pin (locking member).

Claims (4)

It is interposed between a seat cushion and an ottoman, holds the ottoman when the ottoman is in a retracted state, allows operation in the deployment direction of the ottoman in the adjustment region up to the maximum deployed state of the ottoman, and retracts When the ottoman further operates in the deployment direction from the maximum deployed state, the operation is switched to allow the ottoman to operate in the retracted direction, and the ottoman can be returned to the retracted state. An adjustment mechanism that switches operation,
A hook rotatably connected to one of the seat cushion side first member and the ottoman side second member between the seat cushion and the ottoman;
A striker pin that is fixed to one of the first member and the second member, the hook is hooked in the retracted state of the ottoman, and the operation in the deployment direction of the ottoman is locked;
A contact member provided on the first member or the second member to which the striker pin is fixed;
The hook is unlocked to release the striker pin so that the ottoman is guided in the striker pin when the ottoman is further actuated in the retracted state in the retracted state of the ottoman and allows the ottoman to operate in the unfolding direction. The adjustment mechanism is rotated to a locked position where the striker pin can be hooked in the retracted state of the ottoman when the ottoman is operated in the unfolding direction. The ottoman device for a vehicle, wherein the striker pin is latched in the retracted state of the ottoman in accordance with the operation in the retracted direction of the ottoman allowed by. The ottoman device for a vehicle according to claim 1,
With the rotation of the hook guided to the striker pin when the ottoman is further urged in the storage direction with the ottoman retracted, the hook is rotated and urged to the locked position. The hook is turned over to urge the hook to the unlocked position, and is turned over with the turning of the hook guided by the abutting member as the ottoman is operated in the unfolding direction. An ottoman device for a vehicle, comprising: a reversing spring that urges the hook to turn to the locked position. In the ottoman device for vehicles according to claim 1 or 2,
The ottoman is supported by the seat cushion via an arm member rotatably connected to an attachment member fixed to the seat cushion,
The first member is the mounting member;
The ottoman device for vehicles, wherein the second member is the arm member. In the ottoman device for vehicles according to any one of claims 1 to 3,
A locking member provided on one of the first member and the second member;
Provided on the other of the first member and the second member, one leg is locked to the first or second member, and the other leg is fixed to the locking member in the retracted state of the ottoman. A biasing means for generating a biasing force that causes the ottoman to operate in the unfolding direction when the other leg is pressed against the locking member when the ottoman is further operated in the retracting direction when being abutted or approached; An ottoman device for a vehicle, comprising: