JP4572749B2 - Sheet storage device - Google Patents

Description

  The present invention relates to a seat storage device that moves a seat back (back) of a seat forward toward a seat cushion (seat surface), and in particular, a seat that can return a forward-back seat back to a standing position from a back door side behind a vehicle. It relates to a storage device.

  2. Description of the Related Art Conventionally, in order to expand a cargo space at the rear of a vehicle, a device in which a seat back of a rear seat is moved forward and the back of the seat back is used as a cargo bed is known.

  A structure in which the seat back is moved forward at a stretch by a mechanical remote operation from the back door side at the rear of the vehicle is known among those that move the seat back forward.

  For example, in Patent Document 1 below, a rotation spring that biases forward is provided on the seatback rotation shaft at the lower portion of the seatback, and the seatback side portion is engaged with the vehicle body striker at the seatback standing position. There has been proposed a structure in which a lock portion is provided and the seat back is moved forward at a stroke by remotely operating the lock portion with an operation knob provided in the vicinity of the back door.

According to this conventional structure, since the seat back can be moved forward from the back door side, even if the operator does not go around to the rear door side of the vehicle one by one, the seat back is immediately moved forward and the luggage compartment There is an advantage that can be expanded.

JP 2003-118456 A

  By the way, if the seat back can be returned to the upright position from the back door side after the luggage is lowered from the luggage compartment, the convenience is further enhanced and the function of the luggage compartment can be enhanced.

In this regard, according to the conventional structure disclosed in Patent Document 1 , when the seatback is moved forward, the operation can be performed without going around the rear door on the side of the vehicle, but the seatback is in the upright position. In the case of returning, it is necessary for the operator to go around to the rear door side of the vehicle side after all, and the convenience cannot be improved.

  In this regard, when the seat back is returned to the standing position, it can be operated from the back door side. For example, a pulling tool such as a “string” is provided on the back of the seat back, and one end of the pulling tool is pulled. The structure which causes is considered.

  However, in a vehicle such as a station wagon where the distance from the back door to the rear seat is long, it is difficult to always position one end of the pulling tool near the back door, and the seat back is always urged forward. In such a case, there is also a problem that it is difficult to cause the seat back with only the pulling tool.

Therefore, the present invention provides a seat storage device that expands the cargo space at the rear of the vehicle by moving the seat back forward, and when pulling the seat back forward from the back door side behind the vehicle to the standing position, without providing easy, or one by securely returning the seat back to the upright position, further enhancing the convenience for its object to provide a sheet storage device capable of increasing the luggage compartment function.

The seat storage device of the present invention has a back door at the rear end portion of the vehicle, includes a luggage compartment floor on the vehicle front side of the back door, and has a rear seat on the vehicle front side of the cargo compartment floor, A seat storage device that allows a seat back of the rear seat to fall to the front side of the vehicle, and is provided at a lower portion of the seat back, and extends in a substantially horizontal direction to support the seat back in a freely tiltable manner. Rotating force in the seat back standing direction is transmitted to the seat back overturning means that causes the seat back to fall forward without stopping in the middle by a single operation from the back door side, and the seat back rotating shaft. a rotary input shaft which extends substantially horizontally to a disc pulley fixed to said rotary input shaft coaxially in the vehicle width direction end portion of the rotary input shaft, Kakare around the outer periphery of the disc-pulley, the luggage compartment A wire extending up to a portion, a winding means built in the disk pulley and rewinding the drawn wire to the outer periphery of the disk pulley, and a handle portion for an operator to pull out the wire at the rear end of the wire It is equipped with .

According to the above configuration, the seat back is brought forward at a stretch by the seat back fall means, and the rotational force in the standing direction from the operator near the back door is transmitted to the seat back by the rotation input shaft and the handle portion . Will be.

For this reason, the operator, even if you return the previous defeat was the seat back in the upright position, it can operate from the back door side.

Further, the seat back overturning means may be any means as long as the seat back falls down at a stretch.For example, the seat back is always pushed forward and the seat back is moved forward only by releasing the locked state of the standing position. Even if the urging force is not acting on the seat back, there is no particular limitation such as a case where the operator presses the seat back as it is when the operator presses from the back of the seat back.
In addition, a disk pulley fixed to the rotary input shaft, a wire wound around the outer periphery of the disk pulley and extending to the rear part of the cargo compartment, and a wire incorporated in the disk pulley and drawn out are connected to the disk pulley. Winding means for rewinding to the outer periphery, and a handle for pulling out the wire by the operator at the rear end of the wire. Thus, the disk pulley, the wire, the winding means and the handle are By providing, the operator can apply the rotational force in the standing direction to the rotation input shaft by repeating the drawing operation of the wire to the vehicle rear side, and can rotate the seat back in the standing direction.

For this reason, the seat back can be rotated in the standing direction by pulling out the wire to the vehicle rear side in the “same direction” as the seat back standing direction (rotating to the vehicle rear side).

Therefore, the operator can erect the seat back by an intuitive operation (an operation of pulling up the seat back from the vehicle rear side).
The seat storage device according to the present invention further includes a back door at the rear end of the vehicle, includes a cargo floor on the vehicle front side of the back door, and includes a rear seat on the vehicle front side of the cargo floor. Further, the seat storage device enables the seat back of the rear seat to lie down to the front side of the vehicle, and is provided at the lower part of the seat back and rotates in a substantially horizontal direction that supports the seat back in a freely retractable manner. A shaft, a seat back overturning means that folds forward without stopping the seat back halfway by a single operation from the back door side, and a rotational force in the seat back standing direction with respect to the seat back rotating shaft A rotation input shaft extending in a substantially horizontal direction for transmitting the vehicle, a rod member having a front end linked to a vehicle width direction end of the rotation input shaft and extending in the vehicle front-rear direction, and a rear end of the rod member The lever member is provided with a lever member that is linked to the lower end and has a pivot point at the center and that extends in the vertical direction, and a handle that allows the operator to input a stroke in the vehicle longitudinal direction at the upper end of the lever member. .

According to the above configuration, the seat back is brought forward at a stretch by the seat back fall means, and the rotational force in the standing direction from the operator near the back door is transmitted to the seat back by the rotation input shaft and the handle portion. Will be.

For this reason, the operator can operate from the back door side even when returning the forward-backed seat back to the standing position.
Further, the seat back overturning means may be any means as long as the seat back falls down at a stretch.For example, the seat back is always pushed forward and the seat back is moved forward only by releasing the locked state of the standing position. Even if the urging force is not acting on the seat back, there is no particular limitation such as a case where the operator presses the seat back as it is when the operator presses from the back of the seat back.

Moreover, a rod member that extends in the vehicle front-rear direction with a front end portion linked to the rotation input shaft, and a lever member that extends in the vertical direction with a lower end portion linked to the rear end portion of the rod member and provided with a pivot fulcrum in the center. And an upper end of the lever member is provided with a handle portion for the operator to input a stroke in the vehicle longitudinal direction. Thus, the rod member, the lever member, and the handle portion are provided to operate the lever member. The person rotates the seat back in the standing direction by operating the handle at the upper end of the lever member in the vehicle front-rear direction.

For this reason, the rotation operation in the standing direction of the seat back can be reliably performed by the rod member and the lever member having higher rigidity than the wire. Further, the handle portion can be set at a high position in the luggage compartment without difficulty by the lever member extending in the vertical direction.

Therefore, the operating force of the operator can be reliably transmitted to the rotary input shaft, and the handle portion can be set at a high position, so that the operability of the operator can be improved. Further, by changing the position of the pivot fulcrum of the lever member, the stroke amount can be changed, and the degree of freedom in operability can be increased.

  In one embodiment of the present invention, when the rotational force in the seat back standing direction is input by the input operation means, the seat back inclination angle holding means for holding the current seat back inclination angle is provided.

  According to the above configuration, the seat back can be adjusted and held at an arbitrary inclination angle between the forward position and the standing position by the seat back inclination angle holding means.

  Therefore, for example, when the luggage is leaned against the back of the seat back, the inclination angle can be appropriately adjusted according to the shape and type of the luggage.

In one embodiment of the present invention, the seat back inclination angle holding means is a ratchet mechanism that transmits only the rotational force in the seat back standing direction to the transmission path between the seat back rotation shaft and the handle portion. There is provided speed reduction means for decelerating the rotational force input from the handle portion and transmitting it to the seat back rotation shaft.

According to the above configuration, by providing the ratchet mechanism as the seat back tilt angle holding means, the rotational operation force from the handle portion is transmitted to the seat back rotation shaft by repetitive operation only in the standing direction. Further, since the rotational operation force from the handle portion is decelerated by the deceleration means, the operation force of the operator is also reduced.

For this reason, it is possible to reduce the operation force of the operator who inputs from the handle part as compared with the case where the seat back is directly rotated in the upright direction, and the seat back is moved in the upright direction by the repeated operation of the handle part. Can be rotated.

Therefore, it is possible to reduce the operation stroke amount per one time, also, it is possible to reduce also the operating force, Ru can be used to ease the operational burden of the operator.

In one embodiment of the invention, the wire, the reduction means, ratchet mechanism, and a side wall trim to hide the and disc pulley from luggage compartment, at the back door near the side wall trim, the grip portion to the luggage compartment And a holding portion that is exposed and held.

According to the above configuration, the side wall trim, wire, reduction means, ratchet mechanism and disc pulley is concealed, grip portion is to be held by the holding portion of the back door near.

  For this reason, the mechanism for rotating the seat back to the standing position can be completely shielded from the luggage compartment. On the other hand, since the handle portion is exposed and held in the cargo compartment by the holding portion in the vicinity of the back door, the operator can immediately hold the handle.

Therefore, the appearance of the cargo compartment can be improved, and the mechanism for rotating the seat back to the standing position can be protected from the loaded luggage. Moreover, because it is always defined by the holder the position of the grip portion, as possible out to improve operability.

In one embodiment of the present invention, a seat back gear fixed to the end of the seat back rotation shaft in the vehicle width direction coaxially with the seat back rotation shaft and rotating integrally with the seat back, and meshing with the seat back gear And an idler gear that transmits the rotational force from the rotation input shaft, and the latching mechanism biased by the idle gear is engaged to restrict the rotation in one direction, thereby forming the ratchet mechanism. It is a thing.

  According to the said structure, the function of the ratchet mechanism which enables repetitive operation can be obtained with an idle gear.

  Therefore, the ratchet mechanism can be configured by effectively using a gear for adjusting the rotation direction, which is an idle gear.

  Therefore, a repetitive operation function can be obtained without providing a separate gear for the ratchet mechanism.

  In one embodiment of the present invention, rotation transmission blocking means is provided for blocking the linkage of the transmission path for transmitting the rotational force in the seat back standing direction to the seat back rotating shaft when the seat back overturning means is operated. .

  According to the above configuration, the rotation transmission blocking means interrupts the linkage of the transmission path that transmits the rotational force in the standing direction when the seatback lie means operates.

  For this reason, when the seat back overturning means is operated, since the seat back is not restrained by the transmission path and moves forward at a stretch, the transmission path does not affect the forward collapse of the seat back.

  Therefore, even if a transmission path for transmitting the rotational force in the standing direction of the seat back is separately provided, the operation of the seat back overturning means can be surely performed, and the convenience can be reliably improved.

  According to the present invention, the seat back can be brought forward at a stretch by the seat back fall means, and the operator can operate from the back door side even when the forward-turned seat back is returned to the standing position. Can do.

Therefore, in the seat storage device that expands the luggage compartment space at the rear of the vehicle by moving the seat back forward, without returning the seat back that has been moved forward from the back door side of the vehicle to the standing position, By returning the seat back to the standing position easily and reliably, the convenience can be further improved and the cargo compartment function can be enhanced.

The embodiments of the present invention will be described in detail with reference to the accompanying drawings.
First, it will be described first embodiment according to the present invention with reference to FIGS. 1 is a rear perspective view of a rear luggage compartment of a partially transparent vehicle, FIG. 2 is a schematic side view of the rear luggage compartment, FIG. 3 is a cross-sectional view taken along line AA in FIG. 2, and FIG. FIG. 5 is a cross-sectional view taken along the line BB in FIG. 3, FIG. 6 is a perspective view of a single piece of a pulley bracket, and FIG. 7 is a detailed view of a one-way clutch. FIG. 8 is a detailed view of the clutch mechanism.

The vehicle V of this embodiment is a station wagon provided with a large-capacity cargo compartment T at the rear of the vehicle, as shown in FIG. As shown in FIG. 2, a rear seat 2 installed at the rear end of the passenger compartment floor 1 extending from the front of the vehicle to the rear side and an upper kick-up portion 3 on the rear side of the rear seat 2 are provided at the rear of the vehicle V. And a rear gate 5 as a back door that opens and closes when loading / unloading luggage behind the cargo floor 4. The operator M stands in the vicinity of the rear of the rear gate 5 when performing the loading / unloading of the luggage into / from the luggage compartment T.

In the center of the aforementioned luggage compartment floor 4, forming a spare tire pan 6 recessed, stores spare tire 7 therein, thereabove placed a trunk box 8 and trunk board 9 ing.

  In addition, 10 is a rear wheel, 11 is a rear side frame extending in the vehicle longitudinal direction, 12 is a suspension damper, and 13 is a rear bumper.

On the other hand, the rear of the vehicle luggage compartment side wall 14, as shown in FIG. 2 and FIG. 3, to form a tire house 15 bulging luggage compartment T side corresponds to the rear wheel 10, in its upper Forms a quarter window 16. Further, in the luggage compartment T side inward of the vehicle body inner panel 14a of the luggage compartment side wall 14, made of resin or have stretched the sidewall trim 17 made of fibers. Thereby, the appearance in the cargo compartment T is improved.

  In addition, operation portions 21 and 31 of an operation mechanism for operating the seat back 2a of the rear seat 2 described above from the rear gate 5 side are installed on the side wall 14 of the luggage compartment. Specifically, an operation portion 21 of the seat back overturning mechanism 20 that immediately lies the front of the seat back 2a in one action and an operation portion 31 of the seat back return mechanism 30 that returns the seat back 2a to the standing position. These are installed near the rear gate 5 on the side wall 14 of the luggage compartment. The “near” is a position that can be reached by the operator M reaching from the rear of the rear gate 5, for example, a position about 10 to 30 cm from the rear end of the vehicle to the front side of the vehicle (FIG. 1, FIG. 2).

  1 and 2 show only one each of the operation units 21 and 31 for simplification, but the split back is capable of folding the seat back 2a of the rear seat 2 independently on the left and right. In the case of the configuration, it is desirable that the operation portions 21 and 31 are provided on the left and right side walls so that the seat back overturning mechanism 20 and the seat back return mechanism 30 can be operated. Further, although only one seat back fall mechanism 20 and one seat back return mechanism 30 are shown in the drawing, it is desirable that they be provided on the left and right sides in the same manner.

  The above-described seat back overturning mechanism 20 includes a seat back rotating shaft 22 that extends in the vehicle width direction at the lower end of the seat back 2a, and a rotation that is fixed to the end of the seat back rotating shaft 22 and urges the seat back 2a in the forward falling direction. A moving spring portion 23, a catch portion 25 (lock portion) that is provided at a side end portion of the seat back 2a, engages with a striker 24 (see FIG. 2) on the vehicle body side, and holds the seat back 2a in an upright position; The release cable 26 is connected to the catch portion 25 and transmits the operation force from the operator M, and the operation portion 21 is connected to the rear end of the release cable 26 and operated by the operator M.

  As shown in FIG. 1, the seat back rotating shaft 22 is installed at the lower part of the seat back 2a so as to extend in the vehicle width direction, and is fixed to the seat back 2a so as to rotate integrally with the seat back 2a. Both ends of the base bracket 27 are pivotally supported by a base bracket 27 installed on the passenger compartment floor 1.

The aforementioned rotating spring portion 23 is fixed to the end portion of the seat back rotating shaft 22 and is configured to urge the seat back 2a in the forward-downward direction. Specifically, although not shown, one end fixed to the seat back rotational axis 22, by interposing a spiral spring fixed at the other end to the vehicle body side member (e.g., the base bracket 27), always seatback 2a Is urged to rotate in the forward direction (counterclockwise in FIG. 2).

  The catch portion 25 described above is configured to be engaged with the vehicle body striker 24 by a cam mechanism (not shown) that swings by a spring, similarly to the well-known catch mechanism of the vehicle door. This cam mechanism is configured to be opened by an operation from the operation unit 21, and is configured to be disengaged from the striker 24 by an operation of the operator M.

  The release cable 26 is composed of an inner cable and a cylindrical outer tube (both not shown), and the operation portion 21 of the luggage compartment side wall 14 is linked to the catch portion 25 of the seat back 2a. After being lowered along the back surface of the seat back 2a and guided below the seat cushion 2b, the seat back 2a is disposed so as to extend to the vehicle rear side along the cargo compartment side wall 14.

  The release cable 26 is configured to transmit an operation force from the operation unit 21 to the catch unit 25 by pulling an inner cable (not shown).

  As shown in FIG. 2, the aforementioned operation unit 21 includes a release knob 21 a and a case body 21 b that is fixed to the cargo compartment side wall 14 in the same manner as a known inner handle of a vehicle door. By pulling up inward, the inner cable (not shown) can be pulled.

  In the seat back overturning mechanism 20 configured as described above, since the rotating spring portion 23 always urges the seat back 2a in the forward tilting direction, the catch portion 25 is not engaged with the striker 24. The seat back 2a is in a state of being tilted forward above the seat cushion 2b (a state indicated by a broken line in FIG. 2).

  On the other hand, when the seat back 2a is in the standing state and the catch portion 25 is engaged with the striker 24, the seat back 2a is held in the standing state and becomes a normal seating state (a state shown by a solid line in FIG. 2). ).

  In this state, as shown in FIG. 2, when the operator M pulls the release knob 21 a of the operation unit 21 from the rear gate 5 side at the rear of the vehicle, the seat back 2 a is moved forward by the urging force of the rotating spring unit 23. Rotate at a stroke (forward) and fall forward (state shown by broken lines in FIG. 2).

  For this reason, the operator M does not need to go around to the rear door (not shown) side of the vehicle to enlarge the cargo compartment T one by one, and easily and reliably pushes the seat back 2a forward from the rear gate 5 side. can do.

  Therefore, the loading operation of the luggage can be easily performed, and the convenience of the luggage compartment performance of the vehicle can be enhanced.

As shown in FIGS. 1 and 2, the seat back return mechanism 30 includes a seat back tilt gear 32 provided at an end of the seat back rotating shaft 22, and an idle gear 33 that meshes with the seat back tilt gear 32. A disk pulley 35 having an inner ring gear 34 (see FIG. 4) meshing with the idle gear 33, a wire 36 wound around the outer periphery of the disk pulley 35, and extended to the vehicle rear side; A handle portion 31 is provided as an operation portion 31 on which the operator M performs a pulling operation at the rear end.

Of these, the seat back tilting gear 32, idle gear 33, the disk pulley 35 and the wire 36 is placed in a space covered by the side wall trim 17 at the side of the wheel house 15 of the rear seat 2 side (See FIG. 3).

  The detailed structure of the seat back return mechanism 30 will be described with reference to FIGS.

  As described above, the seat back rotating shaft 22 extending in the vehicle width direction is fixed to the seat back frame 2c that retains the shape of the seat back 2a, and is configured to rotate integrally with the seat back 2a.

  The seat back rotating shaft 22 is rotatably supported with respect to a base bracket 27 that fastens and fixes the seat back 2a to the passenger compartment floor 1. When the seat back rotating shaft 22 is not restrained, the seat back overturning mechanism 20 rotates. Due to the action of the dynamic spring portion 23, the seat back 2a is urged to rotate in the forward direction.

  The seat back tilting gear 32 described above is fastened and fixed to the end of the seat back rotating shaft 22 via a clutch mechanism 50 described later. The seat back tilting gear 32 is constituted by a gear having a relatively large diameter.

  The idle gear 33 is configured to mesh with the seat back tilt gear 32 and transmit the rotational operation force received by the disk pulley 35 to the seat back tilt gear 32. The idle gear 33 is configured with a gear diameter of about a quarter of that of the seatback tilting gear 32, so that the seatback tilting gear 32 and the seatback tilting gear 32 constitute a speed reduction mechanism 37 having a predetermined reduction ratio. .

The idle gear 33 biases the swing piece 38a in one direction via the swing piece 38a pivotally supported by the base bracket 27, a steel ball 38b that presses the swing piece 38a, and the steel ball 38b. The tooth tip is locked by a ratchet mechanism 38 including an urging spring 38c.

  For this reason, the idle gear 33 rotates freely when it rotates counterclockwise in FIG. 4, but when it rotates clockwise, it is fixed to the swinging piece 38a and locked. The rotation is locked.

  Therefore, as will be described later, when the seat back 2a is recovered in the upright direction, it is possible to avoid a state in which the seat back 2a returns to the forward state even if the repeated operation is performed.

  Further, since the ratchet mechanism 38 is configured, when the locking claw 38a1 of the swing piece 38a gets over the tooth tip of the idle gear 33, vibration and sound such as “crisp” are generated. For this reason, the operator M can perform the turning operation of the seat back 2a with a sense of moderation.

The aforementioned disk pulley 35 includes an inner ring gear 34 that meshes with the idle gear 33, a pulley body 39 that wraps a wire 36 around the outer periphery, and a one-way clutch 40 that is interposed between the inner ring gear 34 and the pulley body 39 (FIG. 5) , a pulley bracket 41 for fixing the disk pulley 35 to the cargo compartment side wall 14 (vehicle body inner panel), and a spring-like unwinding spring interposed between the pulley bracket 41 and the pulley body 39. 42 and a shaft support bolt 43 that extends in parallel with the seat back rotation shaft 22 and integrally supports these members in a rotatable manner.

  The inner ring gear 34 described above is formed with substantially the same diameter as the idle gear 33 and is configured to mesh with the idle gear 33 and transmit the rotational force from the pulley body 39 to the idle gear 33 as it is. As shown in FIG. 7, the inner ring gear 34 is provided with a boss portion 34a extending in the axial direction that becomes an inner race of the one-way clutch 40. When the one-way clutch 40 is locked, the boss portion 34a It is comprised so that rotational force may be transmitted.

As shown in FIG. 5 , the pulley body 39 includes an inner peripheral cylindrical boss portion 39a, a flat plate portion 39b extending in the radial direction, and a receiving portion 39c formed on the outer periphery.

  As shown in FIG. 7, the cylindrical boss portion 39 a is configured to be an outer race of the one-way clutch 40, and when the one-way clutch 40 is in a locked state, the rotational force is transmitted from here to the boss portion of the inner ring gear 34. 34a is transmitted to 34a.

As shown in FIG. 5, the flat plate portion 39 b is formed of a large-diameter disk in order to increase the winding amount of the wire 36 as much as possible. In addition, the receiving portion 39c is configured to have a “巻 き” shape so that the wire 36 is surely wound inside.

  The pulley body 39 has one end of the aforementioned rewinding spring 42 fixed to a spring locking piece 41a (see FIG. 6) of the pulley bracket 41 and the other end fixed to a cylindrical boss portion 39a of the pulley body 39. When the pulley body 39 is rotated clockwise in FIG. 4, a counterclockwise rotating force (biasing force) that repels is generated.

  For this reason, as shown in FIG. 2, when the operator M pulls the wire 36 toward the rear side of the vehicle, rotation in the direction of rewinding the wire 36 (counterclockwise) occurs in the pulley body 39, and the operator M When the pulling force is weakened, the wire 36 is pulled back to the vehicle front side.

  Thus, when the pulley body 39 performs the rotation operation, the operator M can perform the repetitive operation (operation) only by performing the operation of pulling to the vehicle rear side.

  As shown in FIG. 7, the one-way clutch 40 includes an inner race 40a composed of a boss portion 34a of an inner ring gear 34 and an outer race 40b composed of a cylindrical boss portion 39a of a pulley body 39. A plurality of rollers 40c that are positioned, a pressing spring 40d that urges the rollers 40c in one direction, and a wedge recess 40e formed in the outer race 40b.

In this one-way clutch 40, by rotating the outer race 40b clockwise as shown in FIG. 7b, the roller 40c rolls toward the wedge recess 40e, and a wedge effect is generated between the inner race 40a and the outer race 40b. Will lock. Therefore, when the pulley body 39 is rotated clockwise in FIG. 7 b , that is, clockwise in FIG. 4, the pulley body 39 is locked and the rotational force from the pulley body 39 is transmitted to the inner ring gear 34. .

On the other hand, by rotating the outer race 40b counterclockwise in b of FIG. 7, the roller 40c is lying around pushing spring side, "wedge" effect between the inner race 40a and outer race 40b is released, both free and Become. Thus, the pulley member 39 counterclockwise in b of FIG. 7, i.e., by rotating counterclockwise in FIG. 4, the one-way clutch 40 becomes free, the rotational force from the pulley member 39 is not transmitted to the inner ring gear 34 It will be.

  Since the one-way clutch 40 acts in this way, the rotational force is transmitted to the inner ring gear 34 only when the operator M rotates the pulley body 39 counterclockwise.

  As described above, the disc pulley 35 includes the one-way clutch 40 and the pulley body 39 biased in one direction, so that when the operator M repeatedly performs the operation from the rear side of the vehicle, the disc pulley 35 is unidirectional. Specifically, only the rotational force in the clockwise direction in FIG. 4 is transmitted.

  The wire 36 is made of a metal wire member, one end is fixed to the receiving portion 39c of the pulley body 39, a predetermined amount is wound around the receiving portion 39c, and the other end is wound along the cargo compartment side wall 14 in the vehicle. It arrange | positions toward the back side. A pulley portion 36a is provided on the way to the rear side of the vehicle to define the arrangement position of the wire 36.

  The wire 36 is always fastened to the front side of the vehicle by the urging force of the disk pulley 35 described above, so that rattling does not occur.

  The aforementioned handle portion 31 is formed of a D-shaped handle member fixed to the rear end of the wire 36.

  The handle portion 31 is normally held by a holding recess 31a formed at a relatively high position of the side wall trim 17 (see FIG. 1), and does not interfere with loading when loading a load. Moreover, since it is hold | maintained at a high position, when the operator M operates the handle part 31, it can remove from the holding | maintenance recessed part 31a easily, and can operate immediately.

When the seat back 2a is turned, the operator M pulls the handle 31 toward the rear side of the vehicle, thereby giving the seat back 2a a rotational force in the standing direction. That is, by pulling the grip portion 31 rearward, the pulley body 39 of the disk pulley 35 is rotated clockwise in FIG. 4, and the rotational force is transmitted by the transmission path of the inner ring gear 34 → the idle gear 33 → the seat back tilting gear 32. Is transmitted, and finally the rotational force is transmitted to the seat back 2a.

  The pulling operation of the handle portion 31 is repeatedly performed by the action of the disk pulley 35 described above.

  As described above, by performing the operation by repetitive operations, the operator M can perform the standing operation of the seat back 2a without moving the place even in the case of the present embodiment that requires a relatively long rotation amount. .

  That is, in the present embodiment, as described above, the reduction mechanism 37 reduces the operation force per one operation of standing up the seat back 2a. Since the input can be performed, the operator M can operate without moving the place.

  Next, the clutch mechanism 50 interposed between the seat back tilting gear 32 and the seat back rotating shaft 22 will be described with reference to FIG.

As shown in FIG. 8A , the clutch mechanism 50 meshes with a cylindrical clutch casing 51 that is loosely fitted to the seatback rotating shaft 22 and a helical gear 51 a provided on the inner wall of the clutch casing 51. A cylindrical sleeve member 52, a cylindrical shaft support member 53 that supports the sleeve member 52 on the seat back rotation shaft 22 by spline fitting so as to be slidable in the axial direction, and the shaft support member 53 as a seat back rotation shaft. The bearing member 54 is rotatably supported on the belt 22, the release spring 55 presses and urges the sleeve member 52 in the releasing direction (left side in FIG. 8), and is fixed to the seat back rotating shaft 22. The fixing member 56 that can be meshed with the spline teeth 56a and the lid member 57 that hermetically accommodates these members in the clutch casing 51 are provided.

  The seat back tilting gear 32 is fixed to the outer periphery of the clutch casing 51, and a fixing bolt 60 is fastened to the end of the seat back rotating shaft 22.

  The clutch mechanism 50 is configured such that the seat back tilting gear 32 and the seat back rotating shaft 22 are linked only when the rotational force from the seat back 2a standing direction is input from the seat back tilting gear 32. When the rotational force from the standing direction of the seat back 2a is not input, the linkage is released.

  That is, only when the seat back return mechanism 30 is operated, the seat back rotating shaft 22 and the seat back tilting gear 32 are linked, and at other times, the linkage is released, so that the function of the seat back falling mechanism 20 is not hindered. It is doing so.

First, the state of FIG. 8A is a state before the rotational force is input from the seat back tilting gear 32 side. As shown in the schematic diagram below, when the seat back tilt gear 32 rotates in the standing direction, the clutch casing 51 also rotates together (in the direction of the arrow pointing downward in the drawing), so that the helical gear 51a formed on the inner wall of the clutch casing 51 is Then, the sleeve member 52 is started to be pressed in the axial direction (locking direction: left side of the drawing).

When the rotation further proceeds, as shown in FIG. 8B , the sleeve member 52 moves in the axial direction (left side), and the sleeve member 52 and the fixing member 56 start to mesh with the spline teeth. From this time point, the seat back tilting gear 32 and the seat back rotating shaft 22 start to rotate together.

Further, when the rotation of the seat back tilting gear 32 proceeds, as shown in FIG. 8C , the sleeve member 52 moves in the axial direction against the repulsive force of the release spring 55, and the sleeve member 52 and the fixing member 56 are moved. Are completely meshed with each other, and the rotational force is reliably transmitted, and the rotational force in the standing direction is transmitted to the seat back 2a.

Thereafter, when the rotation operation of the seat back 2a in the standing direction is completed, as shown in FIG. 8D, the rotational force is not applied from the seat back tilting gear 32, so the sleeve member 52 is moved by the release spring 55. It will be pushed to the left side and the spline fitting will be released.

  Thus, only when the seat back tilting gear 32 rotates, that is, when the seat back return mechanism 30 operates, the clutch mechanism 50 connects the seat back tilting gear 32 and the seat back rotating shaft 22. When the back return mechanism 30 does not operate, the seat back rotating shaft 22 is not constrained from the transmission path of the seat back return mechanism 30 and can freely rotate.

  Therefore, the seatback return mechanism 30 can be operated without hindering the lying action by the seatback lying mechanism 20.

  In the seat back return mechanism 30 configured in this manner, the operator M holds the handle 31 from the rear gate 5 side at the rear of the vehicle in a state where the seat back 2a is in a forward-turned state (a state indicated by a broken line in FIG. 2). When the wire 36 is pulled to the rear side of the vehicle, the disk pulley 35 rotates in the standing direction (clockwise direction in FIG. 4), and the idle gear 33 is rotated via the inner ring gear 34. The tilt gear 32 rotates. Then, when the above-described clutch mechanism 50 is operated, the seat back rotating shaft 22 rotates in the standing direction, and the seat back 2a rotates in the standing direction (see the state indicated by the solid line in FIG. 2).

In this case, the above-described one-way clutch 40, pulley member 39, a and ratchet mechanism 38, since the provided in the path of the rotation transmission, the operator M repeats the pulling operation of the wire 36 to the rear side of the vehicle Only by this, the seat back rotating shaft 22 can be rotated in the seat back 2a standing direction.

  Therefore, the operator M does not need to go around to the rear door side of the vehicle side to return the seat back 2a to the standing position, and can easily and reliably return the seat back 2a from the rear gate 5 side. it can.

  Therefore, the seat back 2a can be easily restored after loading and unloading, and the convenience of the cargo compartment performance of the vehicle can be further enhanced.

The embodiment configured as described above has the following operational effects.
In this embodiment, the seat back 2a is brought forward at a stretch by the seat back overturning mechanism 20, and the seat back 2a is raised by the operation of the operator M from the vicinity of the rear gate 5 by the disk pulley 35, the wire 36, and the like. The rotational force in the direction is transmitted.

  For this reason, the operator M can perform an operation from the rear gate 5 side even when returning the forwardly retracted seat back 2a to the standing position.

Therefore, in the seat storage device that enlarges the cargo compartment at the rear of the vehicle by moving the seat back 2a forward, the retracting seat back 2a from the rear gate 5 side at the rear of the vehicle is returned to the standing position without providing a pulling tool or the like. easily, or one by securely returning the seatback 2a to the upright position, it is possible to further enhance convenience, enhance luggage compartment function.

  In addition, about the mechanism which falls down the seat back 2a ahead, even if it does not provide the seat back fall-down mechanism 20 like this embodiment, it presses from the back of the seat back 2a, and it makes it fall forward as it is. Also good.

  In this embodiment, when the seat back 2a is returned to the upright position by the disk pulley 35, the wire 36, etc., the current inclination angle of the seat back 2a is adjusted and held at an arbitrary inclination angle by the ratchet mechanism 38. Can do.

  Therefore, for example, when the luggage is leaned against the back of the seat back 2a, the inclination angle of the seat back 2a can be adjusted as appropriate according to the shape and type of the luggage.

  Further, in this embodiment, by providing the ratchet mechanism 38, the rotational operation force from the wire 36 or the like is transmitted to the seat back rotating shaft 22 by repeated operation only in the standing direction. Moreover, since the rotational operation force from the handle part 31 etc. is decelerated by the speed reduction mechanism 37, the operation force of the operator M is also reduced.

  For this reason, the operating force of the operator M input from the handle portion 31 can be reduced as compared with the case where the heavy seat back 2a is directly rotated in the upright direction. 2a can be rotated in the standing direction.

  Therefore, the length of the operation stroke per operation and the operation force can be reduced, and the operation burden on the operator M can be reduced.

Further, in this embodiment, the configuration for transmitting the rotational operation force of the operator M, the disk pulley 35, the wire 36, by providing the spring 42 and the grip portion 31 reverses, the operator M is, the wire 36 By repeating the pull-out operation toward the rear side of the vehicle, the seatback 2a is rotated by applying a rotational force in the standing direction to the inner ring gear 34 of the disk pulley 35.

  For this reason, the seat back 2a can be erected by a pulling-out operation to the vehicle rear side that is “in the same direction” as the standing direction (rotation to the vehicle rear side) of the seat back 2a.

  Therefore, the operator M can operate the seat back 2a upright by an intuitive operation (an operation of pulling up the seat back 2a from the vehicle rear side).

Further, in this embodiment, the side wall trim 17, the wire 36, the deceleration mechanism 37, the ratchet mechanism 38 and the disk pulley 35 is hiding in the grip portion 31 is held by the rear gate 5 near the holding recess 31a Become.

  For this reason, the seat back return mechanism 30 can be completely shielded from the cargo space. On the other hand, since the handle portion 31 is exposed and held in the cargo compartment by the holding recess 31a in the vicinity of the rear gate 5, the operator M can immediately hold the handle.

  Therefore, the appearance of the cargo compartment can be improved, and the seat back return mechanism 30 can be protected from the loaded luggage. Further, since the position of the handle portion 31 is always defined by the holding recess 31a, the operability can be improved.

  In this embodiment, the idle gear 33 provides the function of the ratchet mechanism 38 that enables repetitive operations.

  Therefore, the ratchet mechanism 38 can be configured by effectively using the idle gear 33 for adjusting the rotation direction.

  Therefore, it is possible to obtain a repetitive operation function without providing a separate gear for the ratchet mechanism 38.

  In this embodiment, since the clutch mechanism 50 is provided, the transmission path of the seat back return mechanism 30 is interrupted when the seat back overturning mechanism 20 is operated.

  For this reason, when the seat back overturning mechanism 20 is operated, the seat back 2a is not restrained and rotates at a stretch, so that the seat back return mechanism 30 does not affect the forward overturning of the seat back 2a.

  Therefore, even if the seat back return mechanism 30 is provided, the seat back overturning mechanism 20 can be reliably operated, and convenience can be improved.

  Next, a second embodiment according to the present invention will be described with reference to FIGS. 9 is a schematic side view of the rear cargo compartment, FIG. 10 is a partially transparent detailed structural view of the seat back return mechanism (stand-up direction rotation transmission mechanism), FIG. 11 is a cross-sectional view taken along the line CC in FIG. FIG. 3 is a detailed view of a one-way clutch.

  Other components not shown are the same as those in the first embodiment. In addition, for the illustrated components, the same components are denoted by the same reference numerals and description thereof is omitted.

  In this embodiment, an operating mechanism for input by an operator M is constituted by a rod member 110 extending in the vehicle front-rear direction and a lever member 120 extending in the vertical direction instead of the disk pulley 35 and the wire 36. .

  That is, the operator M transmits the rotation in the standing direction from the rear gate 5 side on the rear side of the vehicle to the seat back 2a without using the wire 36 or the like.

Specifically, the operating mechanism, as shown in FIG. 9, the front end is a rod member 110 which extends in the longitudinal direction of the vehicle which meshes with the outer ring gear 13 5 which is linked to the seat back rotational axis 22, the lower end of the rod member 110 A lever member 120 that is pivotally attached to the rear end and that is pivotally supported by the cargo compartment side wall 14 in the center and that extends in the vertical direction, and a handle 131 that allows the operator M to input a stroke in the front-rear direction at the upper end of the lever member 120 are provided. .

The rod member 110 is a rod-shaped member extending in the vehicle front-rear direction along the cargo compartment side wall 14, and as shown in FIG. 10, rack teeth 111 are formed on the lower surface of the front end, and the rack teeth 111 are seat-backed. It meshes with the outer ring gear 13 5 which is linked to the rotary shaft 22. Reference numeral 41b denotes a rod holding portion provided on the pulley bracket 41.

The outer ring gear 13 5, as shown in FIG. 12, is provided adjacent to the inner ring gear 34, similarly to the pulley member 39 of the first embodiment, the operating force of the operator M to the seat back return mechanism 130 Input.

The inner periphery of the outer ring gear 13 5, the provided one-way clutch 40, only when the outer ring gear 13 5 is rotated clockwise as shown in b of FIG. 12, and configured to transmit a rotational force to the inner ring gear 34 ing.

  Therefore, only the rotation of the seat back 2a in the standing direction (clockwise in FIG. 10) is transmitted to the seat back tilting gear 32 via the idle gear 33, and the rod member 110 is repeated in the front-rear direction as in the first embodiment. When it moves, only the rotational force in the standing direction of the seat back 2a is transmitted.

  Note that the rotation transmission path from the one-way clutch 40 to the seatback rotating shaft 22 is the same as that in the first embodiment, and thus the description thereof is omitted.

  The lever member 120 described above is formed of a rod-like member that extends in the vertical direction on the cargo compartment side wall 14 in the vicinity of the rear gate 5. The lever member 120 is swingable in the vehicle front-rear direction by a central shaft support 121, and transmits an input in the vehicle front-rear direction to the rod member 110.

The above-mentioned handle portion 131 is provided at the upper end position of the lever member 120, and when the operator M rotates the seat back 2a, the handle portion 131 is gripped to input a stroke in the front-rear direction.

Since the handle portion 131 can be set at a relatively high position in the luggage compartment, the operator M can easily operate it without having to be in an uncomfortable posture like bending his waist.

Further, the operating force operated from the handle portion 131 can be freely changed by changing the height position of the shaft support portion 121 of the lever member 120.

In this embodiment, by grasping the operator M grip portion 131, by moving the stroke of the lever member 120 in the longitudinal direction, causing the vehicle longitudinal movement to the rod member 110, the movement to the outer ring gear 13 5 By transmitting, the rotational force in the standing direction can be transmitted to the seat back 2a.

For this reason, also in this embodiment, the operator M can return the seat back 2a to the upright state from the rear gate 5 side at the rear of the vehicle, and forwards from the rear gate 5 side at the rear of the vehicle, as in the first embodiment. Upon returning the seatback 2a to the upright position, without providing a harness or the like, easily, or one by securely returning the seatback 2a to the upright position, it is possible to further enhance convenience, enhance luggage compartment function.

Furthermore, in the present embodiment, the rod member 110 and the lever member 120 having higher rigidity than the wire 36 can reliably perform the rotation operation in the standing direction of the seat back 2a. In addition, by providing the lever member 120 extending in the vertical direction, even if the height of the seatback rotating shaft 22 and the height of the holding position of the handle portion 131 are largely offset vertically, the handle portion 131 can be loaded without difficulty. It can be set at a high position in the room.

Therefore, the operating force of the operator M can be reliably transmitted to the seat back 2a side, and the handle portion 131 can be set at a high position, so that the operability of the operator M can be improved.
Other functions and effects are the same as those in the above-described embodiment.

As described above, in the correspondence between the configuration of the present invention and the above-described embodiment,
The back door of the present invention corresponds to the rear gate 55 of the embodiment,
Similarly,
The seat back fall means corresponds to the seat back fall mechanism 20,
The rotation input shaft corresponds to the inner ring gear 34 ,
The seat back inclination angle holding means corresponds to the ratchet mechanism 38,
The deceleration means corresponds to the deceleration mechanism 37,
The winding means corresponds to the rewinding spring 42,
The holding portion corresponds to the holding recess 31a,
The seat back gear corresponds to the seat back tilting gear 32,
The rotation transmission blocking means corresponds to the clutch mechanism 50 ,
The rotation fulcrum of the lever member 120 corresponds to the shaft support 121,
The present invention is not limited to the above-described embodiments, but includes embodiments applied to any sheet storage device.

  For example, the seat back 2a of the rear seat 2 is not limited to the left and right split type seat back 2a, and may be an integrated type seat back 2a.

The rear perspective view of the rear luggage compartment of the vehicle which permeate | transmitted a part of 1st embodiment. The schematic side view of the rear luggage compartment of 1st embodiment. FIG. 3 is a cross-sectional view taken along line AA in FIG. 2. The partially transparent detailed structure figure of a seat back return mechanism. FIG. 5 is a cross-sectional view taken along line B-B in FIG. 4. The single item perspective view of a pulley bracket. Detailed view of the one-way clutch. Detailed view of the clutch mechanism. Schematic side view of the rear luggage compartment of the second embodiment Partially transparent detailed structure diagram of seat back return mechanism CC sectional view taken along the line CC in FIG. Detailed view of one-way clutch

2 ... Rear seat 2a ... Seat back 4 ... Cargo floor 5 ... Rear gate (back door)
17 ... Side wall trim 20 ... Seat back fall mechanism (seat back fall means)
22 ... Seat back rotating shaft 30 ... Seat back returning mechanism 31 ... Handle part 32 ... Seat back tilting gear 33 ... Idle gear 34 ... Inner ring gear (rotating input shaft)
35 ... disk pulleys 36 ... wire Ya <br/> 37 ... speed reduction mechanism (speed reduction device)
38. Ratchet mechanism (seat back tilt angle holding means)
42 ... Rewinding spring (winding means)
43 ... Holding recess (holding part)
50. Clutch mechanism (rotation transmission blocking means)
110 ... rod member 120 ... lever member
121 ... Shaft support (turning fulcrum)
130 ... Seat back return mechanism 131 ... Handle part

Claims (7)

A back door is provided at the rear end of the vehicle, a cargo compartment floor is provided on the vehicle front side of the back door, a rear seat is provided on the vehicle front side of the cargo compartment floor, and the seat back of the rear seat is further provided on the vehicle. A seat storage device capable of lying down forward,
A seat back rotating shaft provided in a lower portion of the seat back and extending in a substantially horizontal direction for supporting the seat back in a freely tiltable manner;
A seat back fall means for lying down forward without stopping in the middle by a single operation from the back door side of the seat back;
A rotation input shaft extending in a substantially horizontal direction for transmitting a rotational force in the seat back standing direction with respect to the seat back rotation shaft;
A disk pulley fixed coaxially to the rotary input shaft at the vehicle width direction end of the rotary input shaft;
A wire that wraps around the outer periphery of the disk pulley and extends to the rear of the cargo compartment;
Winding means incorporated in the disk pulley and rewinding the drawn wire to the outer periphery of the disk pulley;
A sheet storage device provided with a handle for an operator to pull out the wire at a rear end of the wire . A back door is provided at the rear end of the vehicle, a cargo compartment floor is provided on the vehicle front side of the back door, a rear seat is provided on the vehicle front side of the cargo compartment floor, and the seat back of the rear seat is further provided on the vehicle. A seat storage device capable of lying down forward,
A seat back rotating shaft provided in a lower portion of the seat back and extending in a substantially horizontal direction for supporting the seat back in a freely tiltable manner;
A seat back fall means for lying down forward without stopping in the middle by a single operation from the back door side of the seat back;
A rotation input shaft extending in a substantially horizontal direction for transmitting a rotational force in the seat back standing direction with respect to the seat back rotation shaft;
A rod member extending in the vehicle front-rear direction with a front end linked to a vehicle width direction end of the rotation input shaft;
A lever member extending in the vertical direction with a lower end linked to the rear end of the rod member and provided with a pivot point at the center;
A seat storage device provided with an upper end portion of the lever member and a handle portion for an operator to input a stroke in the vehicle front-rear direction . When entering the rotational force to the seat back upright direction by the grip portion, <br/> claim 1 sheet storage device, further comprising a seat back inclination angle holding means for holding the current seat back inclination. The seat back inclination angle holding means is a ratchet mechanism that transmits only the rotational force in the standing direction of the seat back to the transmission path between the seat back rotation shaft and the handle portion,
The seat storage device according to claim 2, further comprising a speed reduction unit that decelerates the rotational force input from the handle and transmits the rotational force to the seat back rotation shaft . The wire, the reduction means, ratchet mechanism, and a side wall trim to hide the and disc pulley from luggage compartment,
The sheet storage device according to claim 4, further comprising: a holding portion that exposes and holds the handle portion in a cargo compartment in the vicinity of the back door of the side wall trim. A seatback gear that is fixed coaxially to the seatback rotation shaft at the vehicle width direction end of the seatback rotation shaft and rotates integrally with the seatback;
An idle gear that meshes with the seat back gear and transmits the rotational force from the rotary input shaft,
The sheet storage device according to any one of claims 4 and 5 , wherein the ratchet mechanism is formed by engaging a locking piece biased by the idle gear to restrict rotation in one direction. . The rotation transmission blocking means for blocking the linkage of the transmission path for transmitting the rotational force in the seat back standing direction to the seat back rotating shaft when the seat back overturning means is operated . sheet storage equipment according to 1.

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