JP2016088482A - Vehicle seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle seat in which gripping performance of an operation strap as an input part for a slide lock mechanism is enhanced.SOLUTION: A vehicle seat is equipped with: a rail device 4 which can be switched between a service state and a movement state, is connected to a lower part of a support base 400 which rotatably supports a seat body, and slides the seat body in a cross direction; and a base cover 60 which covers the support base 40 from above. The rail device 4 is equipped with an operation strap 71 which is connected to a lock device 74, which inhibits slide in the cross direction, and releases a slide inhibition state. The base cover 60 is provided with an open hole 82a for the operation strap 71. A lower surface side of a portion of the operation strap 71 provided at the operation strap open hole 82a part is so configured as to contact a part of the base cover 60, and an end side of the operation strap 71 provided on an outer side is located above a side of a portion of the operation strap 71 that is arranged on the strap open hole 82a part.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a vehicle seat, and more particularly to a vehicle seat capable of storing a seat back and a seat cushion at a position lower than a vehicle body floor.

  Conventionally, there are already known vehicle seats in which the seat back and the seat cushion constituting the seat body can be stored at a position lower than the vehicle floor, and among them, the seat body is tilted forward and provided in front of the seat. There is a vehicle rear seat that can be stored on a storage floor (see, for example, Patent Document 1).

A vehicle seat described in Patent Document 1 is attached to a vehicle body floor, and has a mounting shaft that rotatably supports a seat back, a holding groove in which an upper end supports a front portion of a seat cushion, and a lower end is fixed to a storage floor. And a leg structure that is rotatably held by the storage unit.
When the seat body is retracted, the seat back rotates relative to the vehicle floor to move the seat cushion to the storage floor, and the leg member rotates around the holding groove in conjunction with the seat back. It can be stored on the storage floor.
The vehicle seat can be switched from a use state in which an occupant can be seated to a tip-up state in which the seat member is lifted upward after the leg member is detached from the holding groove.

JP 2009-67309 A

By the way, in a seat that can store a seat body as in Patent Document 1, it is common to provide a slide device that slides the seat body in the front-rear direction. In the retracted state, seatable state, and tip-up state), the slide device is locked to stabilize the position.
Therefore, when the slide device is operated to displace (adjust) the front / rear position of the seat body, it is necessary to release the lock state.
Usually, the slide device is provided with a slide lock mechanism for forming and releasing the lock state.
In order to disclose the lock state by the slide lock mechanism, it is necessary to apply an acting force from the outside, and for inputting the acting force from the outside (that is, for the operator to grip and apply the force). An operating strap may be used.
That is, an operation strap may be used as an action force input unit that is indirectly connected to the slide lock mechanism.
Such an operation strap has a free end protruding outside the vehicle seat so that the operator can easily operate the slide, and the operator pulls the operation strap to indirectly connect the slide. Apply an acting force to the locking device to release the lock.
Against this background, there has been a demand for improvement in technology for improving the gripability of such an operation strap.
That is, the free end side of the operation strap protrudes to the outside of the vehicle seat, but it is desirable to avoid disposing it in a conspicuous position from the viewpoint of the design of the vehicle seat. However, if it is arranged at such a position, there is a problem that it is difficult to hold it during operation.
It has been desired to develop a vehicle seat provided with an operation strap that can solve such problems and improve gripping performance.

The present invention has been made in view of the above problems, and an object of the present invention is for a vehicle having a simple configuration and improved gripping of an operation strap which is an input portion of an acting force to a slide lock mechanism. To provide a sheet.
Another object of the present invention is to provide a vehicle seat having an operation strap that is highly rigid and has a reduced number of parts.

  According to the vehicle seat of the present invention, the subject is provided with a seat body having a seat back serving as a backrest portion and a seat cushion coupled to the seat back and serving as a seating portion, and can be used by a passenger. A vehicle seat that can be switched between a state and a movement state in which the seat body is moved from the use state, and is provided on a vehicle body floor side and supports the seat body so as to be rotatable upward A rail device that is connected to the lower side of the support base and slides the seat body in the front-rear direction; and a base cover that covers the support base from above. The rail device slides in the front-rear direction. At least a locking device that prohibits the movement and an operation strap that is connected to the locking device and serves as an action force input unit for releasing the sliding prohibited state. The base cover is formed with a strap through hole for allowing the operation strap to pass through the base cover inwardly and outwardly, and is disposed outside the base cover in the operation strap. The lower surface side of the portion disposed in the strap through hole portion is configured to abut a part of the base cover, and the end portion disposed on the outer side of the operation strap is This is solved by disposing the operation strap above the portion disposed on the strap through-hole portion.

As described above, the operation strap according to the present invention is configured such that, in the operation strap, the lower surface side of the portion disposed in the strap through hole portion comes into contact with a part of the base cover.
For this reason, the lower surface side of the portion of the operation strap disposed in the strap through hole portion is supported by the upper surface of the base cover, and the end portion of the operation strap disposed outside is the strap through hole portion of the operation strap. It becomes the structure arrange | positioned upwards rather than the site | part side arrange | positioned by this.
That is, as the operation strap extends in the outer direction, the operation strap is disposed upward (that is, the outer end portion jumps upward).
For this reason, an operator's grip property improves.
The operating strap is appropriately selected and adjusted in hardness and size in order to maintain the rising state in the state where no acting force is applied.
In addition, it is sufficient that a known device is used as the lock device, and the lock device and the operation strap are connected via, for example, a known cable, a swing lever, and the like.

At this time, as a specific configuration, as described in claim 2, in the operation strap, the portion disposed in the strap through hole portion of the portion disposed outside the base cover includes: A rising formation portion protruding downward is projected, and the rising formation portion abuts on the outer side surface of the base cover, so that the end portion of the operation strap disposed on the outer side is the operation strap. Among these, it is preferable to be disposed above the side of the portion disposed in the strap through hole portion.
If comprised in this way, the operation | movement strap will be arrange | positioned upwards (that is, an outer side edge will jump upwards) as it extends in an outward direction more efficiently by the rising formation part which protruded below. It becomes a state.

At this time, as a more specific configuration, as in claim 3, the operation strap is formed of a flexible material, and the rising formation portion bends a part of the operation strap. The loop shape.
According to a fourth aspect of the present invention, the operation strap is formed of an elongated strap body portion and the rising formation portion, and the rising formation portion is formed on the operation strap body portion. It is made of the same material as the material.
Further, according to a fifth aspect of the present invention, the loop shape formed as the rising forming portion is formed by forming a loop shape with a part of the operation strap being bent and fixing by sewing.
By having such a specific configuration, it is possible to easily form the belt main body portion and the rising formation portion by processing one long belt member, thereby improving the gripping property. In addition, the number of parts can be reduced.

Further, at this time, as described in claim 6, the operation strap is formed by a strap body portion formed in an elongated shape and the rising formation portion, and the rising formation portion is It may be formed of a material different from the material of the operation strap main body.
In this case, as a specific configuration, as described in claim 7, the rising formation portion may be made of a hard resin.
By taking such a form, since the rising formation part can be designed by another member, the freedom degree of the raw material and shape improves.
Moreover, the rigidity of the said part improves by forming a standing | starting-up formation part with hard resin.

Further, at this time, as described in claim 8, when the rising formation portion is formed in a size that cannot pass through the strap through hole, the grip portion side end portion of the operation strap is pulled into the base cover. This is suitable because it can be effectively prevented.
At this time, as described in claim 9, it is preferable that a plurality of the rising formation portions are continuously formed adjacent to each other because rigidity of the portion can be further increased.

At this time, as a specific example of the contact portion on the base cover side, as described in claim 10, the portion of the outer surface of the base cover that contacts the rising formation portion is the strap penetrating portion. It is preferable to be configured as a surface of any one shape selected from a substantially horizontal plane, a substantially inclined surface, and a substantially curved surface formed below the hole.
Further, as a specific example of the contact portion on the base cover side, in detail, as in claim 11, the portion of the outer surface of the base cover that the rising formation portion contacts is formed on the base cover. An operation strap disposition portion that is a recess recessed toward the inside of the base cover, the operation strap disposition portion including an operation strap contact bottom wall that serves as a surface that defines a lower side, and the operation strap contact bottom surface A recess side wall rising from at least a part of the periphery of the wall, and forming a recess shape. The recess side wall is formed with the strap through hole, and the operation strap contact bottom wall It is preferable that the lower end of the rising formation portion is in contact.

If comprised in this way, it can design so that the contact part with a standing formation part can lift the outer side edge part of an operation strap more efficiently.
In other words, the shape of the contact surface may be selected according to the shape of the base cover and the shape of the vehicle seat. However, by defining the positions of the strap through hole and the contact surface as in the above-mentioned claim 11. More efficiently, the outer end of the operation strap can be lifted to improve the gripping property.

At this time, as in a twelfth aspect of the present invention, the base cover is provided with a protruding portion that protrudes upward, and the operation strap comes into contact with the protruding portion so that the outer side of the operation strap is outside. The end side disposed in the above-described operation strap may be configured to be disposed above the site side disposed in the strap through hole portion of the operation strap.
In the case of such a configuration, the extending direction of the operation strap to the outside can be controlled by changing the shape of the base cover.

According to the invention of claim 1, in the operation strap, the lower surface side of the portion disposed in the strap through hole portion is configured to contact a part of the base cover. With this configuration, the contact portion is a starting point. The end side of the operation strap disposed outside the support strap is disposed above the portion of the operation strap (that is, the outer end portion of the operation strap is lifted).
For this reason, it becomes easy for the operator to grip the outer portion of the operation strap, and thus the gripping property of the operation strap is improved.
According to the invention of claim 2, the outer end portion of the operation strap is lifted more efficiently, and the gripping property is improved.
According to the third to fifth aspects of the present invention, the belt main body portion and the rising formation portion can be easily formed by processing one long belt member, thereby improving the gripping property. In addition, the number of parts can be reduced.
According to the invention of claim 6, the degree of freedom of the material and shape of the rising formation portion is improved, and when specifically configured as in claim 7, the rigidity of the rising formation portion is improved.
According to the invention of claim 8, it is possible to effectively prevent the grip portion side end portion of the operation strap from being pulled into the base cover.
According to the invention of claim 9. The rigidity of the rising portion can be increased.
According to the invention of Claim 10 and Claim 11, it can design so that the outer side edge part of an operation strap can be lifted more efficiently, and grip property also improves.
According to the twelfth aspect of the present invention, the extending direction of the operation strap to the outside can be controlled by changing the shape of the base cover.

It is a perspective view of a vehicular seat concerning this embodiment. It is a perspective view of the seat frame used as the frame of a vehicular seat. It is a perspective view of the support base of a vehicle seat. It is a description perspective view which shows the arrangement | positioning state of the strap in the base cover exterior. It is a perspective view of an operation strap. It is an A direction top view of FIG. It is explanatory perspective view which shows a guide wire periphery. It is explanatory perspective view which shows the arrangement | positioning state of the operation strap in a base cover inside. It is explanatory drawing which shows the BB line cross section of FIG. It is a side view of a vehicle seat and is a diagram for explaining an operation of moving from a use state to a storage state. It is a side view of a vehicle seat, and is a diagram for explaining an operation of moving to a stored state. It is a side view of a vehicle seat, and is a diagram for explaining an operation of moving from a stored state to a tip-up state. It is a side view of a vehicle seat, and is a diagram for explaining an operation of returning from a tip-up state to a use state.

Hereinafter, a vehicle seat according to an embodiment of the present invention will be described with reference to FIGS.
The present embodiment exemplifies a vehicle seat capable of storing a seat body on a storage floor, and discloses an operation strap provided as an operation force input portion of a slide lock mechanism.
And this operation strap is formed so that the free end part protrudes outside the vehicle seat, and the gripping ability of the operator becomes high.
The side on which the occupant sits with respect to the seat back of the vehicle seat is the front side of the seat.

The vehicle seat S of the present embodiment is a rear seat corresponding to a rear seat of the vehicle, for example. In addition, in a vehicle provided with three rows of seats in the vehicle longitudinal direction, it can be used as a second row of middle seats.
As shown in FIG. 1, the vehicle seat S is attached to a seat body including a seat back 1, a seat cushion 2, and a headrest 3, and a vehicle body floor, and supports the seat body movably in the front-rear direction. The left and right rail devices 4, the support base 40 attached on the rail device 4, the attachment / detachment legs 30 attached between the seat cushion 2 and the support base 40 and supporting the seat cushion 2 from below, and the support base 40 And a base cover 60 that covers the support base 40 from above is provided as a basic configuration.
Further, as shown in FIG. 2, the vehicle seat S is connected to the reclining device 13 that connects the seat back 1 to the support base 40 so as to be rotatable about the seat rotation shaft 12, and A cushion rotation device 25 that rotatably connects the seat cushion 2, a leg rotation device 28 that rotatably connects the detachable leg 30 to the seat cushion 2, and a slide lock mechanism 70 that locks the rail device 4. And.
As shown in FIG. 10, a concave storage floor formed at a lower position than the vehicle body floor is provided on the front side of the vehicle seat S.

The vehicle seat S can be arranged in three types of seat arrangements: a use state in which an occupant can be seated, a storage state in which the seat body is stored on the storage floor, and a tip-up state in which the seat body is flipped upward. It is a sheet.
Specifically, when the occupant pulls the operation lever R (see FIG. 1) from the usage state shown in FIG. 10A, the vehicle seat S is folded forward and folded and stored on the storage floor. The storage state shown in FIG. 11C is switched. Further, when the occupant manually raises the seat body upward from the stored state, the state is switched to the tip-up state shown in FIG. Further, when the occupant pulls the detachable leg 30 functioning as an operation lever from the tip-up state, the seat cushion 2 rotates downward with respect to the seat back 1 and returns to the use state shown in FIG. Details will be described later.

As shown in FIG. 1, the seat back 1 is a backrest part that supports the back of the occupant from the back, and the cushion pad 1a is placed on the back frame 10 shown in FIG. It is configured to be covered.
The seat cushion 2 is a seating portion that supports an occupant from below, and the cushion pad 2a is placed on the cushion frame 20 shown in FIG. 2 serving as a skeleton, and is covered with the skin 2b from above the cushion pad 2a. It is configured.
The headrest 3 is a head that supports the occupant's head from behind, and is configured such that a cushion pad 3a is placed on a pillar (not shown) serving as a core and covered with an outer skin 3b.

The rail device 4 is disposed between the seat main body and the vehicle body floor in the vertical direction. As shown in FIG. 2, the rail device 4 is fixed to the vehicle floor and extends to the left and right lower rails 4a and 4a. The upper and lower upper rails 4b are slidably supported along the upper and lower rails 4b.
A support base 40 is installed on the upper surfaces of the left and right upper rails 4b.

The rail device 4 is provided with a slide lock mechanism 70.
The slide lock mechanism 70 is a device for prohibiting the seat body from moving in the front-rear direction with respect to the vehicle floor by the rail device 4, and includes an operation strap 71 serving as an operation force input unit, and the operation strap. 71, a cable 72 that connects the swing lever 73, a swing lever 73 that swings about a swing center shaft 73a, and a lock device 74 that locks the rail device 4 by the driving force of the swing lever. It is prepared for.
In addition, since it is a well-known member and mechanism except the shape of the operation strap 71, it demonstrates easily.

The operation strap 71 is a long strap, and one end side thereof is fixed to the cable 72 and the other end side (free end side) projects outward from the base cover 60.
The cable 72 is a known cable, and one end side is fixed to the operation strap 71 as described above, and the other end side is fixed to the end portion of the swing lever 73.
The swing lever 73 is a known long lever. One end of the swing lever 73 is fixed to the cable 72 as described above, and the other end sandwiching the swing center shaft 73a is connected to the lock device 74. Yes.

As the lock device 74, a known lock device is used. For example, a through-hole that penetrates the lower claw portion 4 a and the upper rail 4 b through a locking claw portion that rotates directly or indirectly by the swing of the swing lever 73. The rail device 4 is configured to be locked and unlocked by being able to be engaged and disengaged from the hole. That is, in a state where the locking claw is locked in the through hole that passes through the lower rail 4a and the upper rail 4b, the upper rail 4b cannot move with respect to the lower rail 4a, and thus forms a locked state. Normally (in a state where no operating force is applied), a biasing member or the like is used to form a locked state. The operating force input from the operating strap 71 is transmitted by the cable 72, By swinging the swing lever 73, the latching claw is removed from the through-hole penetrating the lower rail 4a and the upper rail 4b so that the upper rail 4b can move with respect to the lower rail 4a. If a plurality of holes are provided at appropriate positions on the lower rail 4a and the upper rail 4b, when the operation force is not applied after the lower rail 4a moves (when the operator stops the operation), a penetration formed near the position. The locking claw is locked in the hole by the restoring force of the biasing member or the like, and the locked state is again reached at the position.
The shape of the operation strap 71 and its attachment peripheral part are the main components of this embodiment, and will be described in detail later.

The back frame 10 is formed of a substantially rectangular frame that is a skeleton of the seat back 1, and is connected to the support base 40 at the lower left and right outer surfaces of the back frame 10 as shown in FIG. Left and right connecting brackets 11 are attached.
The connection bracket 11 is made of a substantially bow-shaped sheet metal member extending in the vertical direction. The upper end of the connection bracket 11 is attached to the back frame 10, and the lower end is attached to the support base 40.
A seat rotation shaft 12 that is pivotally supported by the support base 40 in the left-right direction is provided at the lower end of the left connection bracket 11, and the back frame 10 with respect to the support base 40 is provided at the lower end portion of the right connection bracket 11. A reclining device 13 for connecting the two to each other is attached.

As shown in FIG. 2, the reclining device 13 is disposed on the left and right inner surfaces of the connection bracket 11 and suppresses interference with the cushion frame 20 in the left-right direction.
The reclining device 13 mainly includes a seat rotation shaft 12 and a spiral spring 14 that rotates the back frame 10 forward with the seat rotation shaft 12 as a center and biases the back frame 10 to a stored state.
The seat rotation shaft 12 is pivotally supported on the back frame 10 side and the support base 40 side in the left-right direction, and one end of the spiral spring 14 is locked on the back frame 10 side, and the other end is on the support base 40 side. It is locked.
The reclining device 13 can be switched to a locked state that locks the rotation operation of the back frame 10, locks the back frame 10 in the standing posture of FIG. 1, and releases the locked state by operating the operation lever R. Then, the back frame 10 can be rotated forward by the urging force of the spiral spring 14 and folded to the vehicle body floor side.

  The cushion frame 20 is formed of a substantially rectangular frame that is a skeleton of the seat cushion 2, and as shown in FIG. 2, left and right side frames 21 disposed on the left and right sides, and front portions of the side frames 21. A front connection pipe 22 that connects the front connection pipe 22, a central connection pipe 23 that connects a substantially central portion in the front-rear direction of each side frame, a pan frame 24 as a plate-like frame that connects the front connection pipe 22 and the central connection pipe 23, Consists mainly of.

The side frame 21 is made of a sheet metal member extending in the front-rear direction of the seat, and a front portion thereof is connected to the front connection pipe 22, and a cushion frame 20 is connected to the rear portion so as to be rotatable with respect to the back frame 10. A cushion rotating device 25 is attached.
The front connection pipe 22 is formed of a substantially U-shaped pipe member, and a leg rotation device 28 that rotatably connects the detachable leg 30 to the cushion frame 20 is attached to the left and right inner surfaces thereof. Yes.

The cushion rotation device 25 is a known device, and as shown in FIG. 2, a cushion rotation shaft 26, a spiral spring 27 that urges the cushion frame 20 downward about the cushion rotation shaft 26, It has.
The cushion rotation shaft 26 is pivotally supported on the back frame 10 side and the cushion frame 20 side in the left-right direction, and one end of the spiral spring 27 is locked on the back frame 10 side, and the other end is on the cushion frame 20 side. It is locked.
The cushion rotation device 25 can be switched to a locked state in which the rotation operation of the cushion frame 20 is locked.
As shown in FIG. 11 (c), the cushion rotation device 25 is configured such that when the seat body is stored on the storage floor, specifically, when the back frame 10 is folded to the cushion frame 20 side. The rotational movement of the cushion frame 20 is locked. Then, as shown in FIG. 13A, when the detachable leg 30 functioning as an operation lever is pulled, the locked state is released, and the cushion frame 20 is moved downward with respect to the back frame 10 by the urging force of the spiral spring 27. Can be rotated.

The leg rotation device 28 includes a leg rotation shaft 28a and a spring member that urges the attachment / detachment leg 30 on the opposite side of the cushion frame 20 around the leg rotation shaft 28a, in other words, away from the cushion frame 20. 28b.
The leg rotation shaft 28a is pivotally supported by the front connecting pipe 22 and the upper end of the detachable leg 30 in the left-right direction, and one end of the spring member 28b is locked to the cushion frame 20 side, and the other end is detachable leg. It is locked on the 30 side.
The leg rotation device 28 can be switched to a locked state in which the rotation operation of the attachment / detachment leg 30 is locked, and the attachment / detachment leg 30 is detached from the leg holding member 50 as shown in FIG. When it is housed on the 20 side, the rotation of the detachable leg 30 is locked. Then, as shown in FIG. 13A, when the locked attachment / detachment leg 30 is pulled, the locked state is released, and the attachment / detachment leg 30 is returned to the use state by the biasing force of the spring member 28b. 50 can be moved to a position where it can be mounted.

As shown in FIG. 2, the detachable leg 30 is a substantially U-shaped pipe member that supports the seat cushion 2, and connects the leg main body portion 31 disposed on the left and right sides and the lower end of each leg main body portion 31. A leg connecting portion 32.
The upper end of the leg main body 31 is connected to the left and right inner surfaces at a substantially central portion in the front-rear direction of the cushion frame 20, and the substantially central portion in the left-right direction of the leg connecting portion 32 is detachably held by the leg holding member 50. Has been.
The upper end portion of the detachable leg 30 protrudes forward of the seat from the lower end portion of the detachable leg 30, and is inclined upward from the lower end portion of the detachable leg 30 toward the upper end portion of the detachable leg 30.

  The support base 40 is a member that supports the seat body. As shown in FIG. 3, the left and right side base portions 41 disposed along the upper rail 4 b on the left and right sides and the front portions of the side base portions 41 are provided. A first base connecting portion 42 to be connected, a second base connecting portion 43 for connecting a substantially central portion of each side base portion 41, left and right reinforcing base portions 44 attached to the upper surface of each side base portion 41, A holding member support portion 45 that connects the base connecting portion 42 and the second base connecting portion 43 and supports the leg holding member 50 is provided.

The side base portion 41 is made of a substantially crank-shaped sheet metal member that is long in the front-rear direction, and as shown in FIG. 3, a support wall portion 41a connected to the upper surface of the upper rail 4b, and left and right inner end portions of the support wall portion 41a. The inner wall portion 41b is bent downward from the left side, and the outer wall portion 41c is bent upward from the left and right outer end portions of the support wall portion 41a.
As shown in FIG. 3, the first base connecting portion 42 and the second base connecting portion 43 are made of a substantially circular pipe member extending in the left-right direction, and are arranged at a predetermined distance in the front-rear direction. .

As shown in FIG. 3, the reinforcing base portion 44 is made of a substantially crank-shaped sheet metal member that is elongated in the front-rear direction, and includes a connecting wall portion 44 a connected to the upper surface of the side base portion 41, and the left and right inner sides of the connecting wall portion 44 a. The inner wall portion 44b is bent downward from the end portion, and the outer wall portion 44c is bent upward from the left and right outer end portions of the connecting wall portion 44a.
The left and right end portions of each of the first base connecting portion 42 and the second base connecting portion 43 are connected by being sandwiched between a side base portion 41 and a reinforcing base portion 44, as shown in FIG.
The reinforcing base portion 44 overlaps the side base portion 41 in the vertical direction to form a closed cross-sectional structure, and the support base 40 has a middle shape.

As shown in FIG. 3, the holding member support portion 45 is a curved sheet metal member that supports the leg holding member 50. The holding member support portion 45 extends in the front-rear direction of the seat and has a substantially central portion opposite to the detachable leg 30 side. A concave bent portion 45a that is recessed downward toward the vehicle body floor is formed.
A front portion of the holding member support portion 45 is attached to the first base connecting portion 42, and a rear portion of the holding member support portion 45 is attached to the second base connecting portion 43.
A leg holding member 50 is attached to the upper surface of the bent portion 45a as shown in FIG. Further, as shown in FIG. 6, a cover attaching portion 65 provided on the base cover 60 is bolted at a position sandwiching the leg holding member 50 in the left-right direction.

As shown in FIG. 3, the leg holding member 50 is formed of a substantially U-shaped clip member that detachably holds the detachable leg 30, and is a bottom that connects the pair of side wall portions 51 and the lower end portions of the side wall portions 51. And a wall portion 52.
Each side wall 51 is bent in a direction close to each other from the lower end to the upper end, in other words, is bent in the opening inward direction so as to narrow the opening portion of the leg holding member 50, At the upper end portion, a curled portion 53 is formed by bending in the outward direction of the opening.

The bottom wall portion 52 has a curved shape and is attached along the bent portion 45 a of the holding member support portion 45.
The pair of curled portions 53 pass through openings provided in the base cover 60 and are exposed to the outside on the detachable leg 30 side.

As shown in FIGS. 3 and 6, the leg holding member 50 is supported by the holding member support portion 45 at a position inclined forward at a predetermined inclination angle with respect to the horizontal plane. In other words, the leg holding member 50 is supported by the holding member support portion 45 at a position where the opening portion is directed obliquely upward and forward.
An inertia lock device 54 that locks the leg connecting portion 32 of the detachable leg 30 while being held by the leg holding member 50 at the time of a rear-end collision of the vehicle is disposed at a portion adjacent to the leg holding member 50.
The inertia lock device 54 is a known device, is attached to the support base 40, is disposed between the first base connection portion 42 and the second base connection portion 43 in the front-rear direction, and holds the legs in the front-rear direction. It is arranged at a position overlapping with the member 50.

The base cover 60 is formed of a resin molded product that covers the entire support base 40 from above. As shown in FIG. 1, the front cover 61 disposed on the front side of the seat and the rear cover 68 disposed on the rear side of the front cover 61. And is composed of.
The rear end of the front cover 61 and the front end of the rear cover are snap-fit coupled to form a bottomed housing-like base cover 60 in an assembled state.
The base cover 60 covers the upper portion of the support base portion 40 with the bottom surface facing upward (that is, arranged to cover the support base portion 40).

In addition, a portion that is recessed toward the rear of the vehicle is formed on one end portion side of the front cover 61 that constitutes the base cover 60, and the recessed portion serves as an operation strap disposing portion 80.
The operation strap disposing portion 80 includes an operation strap abutting bottom wall 81 configured as a surface substantially parallel to the horizontal plane or slightly inclined with respect to the horizontal plane, and a part of the operation strap abutting bottom surface (from the vehicle rear side). A recess side wall 82 rising from a portion extending inwardly).
A strap through hole 82a is formed in a surface of the concave side wall 82 on the vehicle rear side.

<Shape and layout of operation strap>
Next, the shape and arrangement structure of the operation strap 71 will be described with reference to FIGS.
First, the shape of the operation strap 71 will be described with reference to FIGS. 5 and 9.
The operation strap 71 includes an internal arrangement portion 71A, a gripping portion 71B, and a rising formation portion 71C.
In the present embodiment, an example in which the operation strap 71 is formed by appropriately sewing a long cloth belt is shown.

First, the overall shape will be described.
Of the long fabric belt, the end portion on the side that is disposed inside the base cover 60 and is connected to the cable 72 is referred to as one end portion K1, and the other end portion is referred to as the other end portion K2.
The cloth belt extending from the one end K1 is folded back at a predetermined position K3, passes through the lower position of the upper cloth belt, and is sewn to the upper cloth belt at the predetermined position K4.
The cloth belt extending from the position K4 is sewn to the upper cloth belt at a predetermined position K5 in a state where the cloth belt is slacked downward (in a U-shape when viewed from the side).
That is, the cloth belt is folded at the position K3 to form a double upper and lower structure, and then a predetermined position of the cloth belt disposed on the lower side is pulled downward to form a U-shaped downward convex part in a side view. It is formed by sewing at appropriate positions.

  In the operation strap 71 configured as described above, a portion from the one end K1 to the position K5 becomes an “inner arrangement portion 71A”, and a portion from the position K5 to the position K4 (projects downward in a U shape in a side view). The portion that has been loosened) becomes the “rise formation portion 71C”, and the portion from the position K4 to the position K3 becomes the “gripping portion 71B”.

As shown in FIGS. 6 and 9, the operation strap 71 has an inner arrangement portion 71A disposed in the base cover 60 with the vicinity of the position K4 as a boundary, and a rising formation portion 71C and a gripping portion. 71B is arrange | positioned so that it may protrude outside from the strap through-hole 82 formed in the base cover 60. FIG.
At this time, the lower end portion of the rising formation portion 71 </ b> C is disposed so as to contact the operation strap contact bottom wall 81 constituting the operation strap disposition portion 80.

The operation strap 71 is made of a material having a certain degree of hardness.
For this reason, in a state where the rising formation portion 71C is supported by the operation strap contact bottom wall 81, the gripping portion 71B is supported by the rising formation portion 71C, and the rising state can be maintained.
Therefore, the operator can easily grip the operation strap 71, and the gripping property is improved.
Further, since the rising formation portion 71C exists, it is possible to effectively prevent the gripping portion 71B from being pulled into the base cover 60 from the strap through hole 82a.

Next, members around the operation strap 71 will be described with reference to FIGS.
The operation strap 71 is configured so that the position up to the strap through hole 82a is guided by the guide wire W.
As shown in FIG. 8, the guide wire W is formed by bending a single wire, and rises from the upper rail 4 b and rises from the upper end of the riser W1 toward the outside front (parallel to the horizontal plane). An extending guide portion W2, a front portion W3 bent from the front end portion of the guide portion W2 toward the inner side, and an inner side bent from the front portion W3 and extended rearward along the outer wall portion 41c. Part W4.

The internal arrangement portion 71A of the operation strap 71 passes below the front portion W3, is hooked from below by the guide portion W2, and is guided inward. And the edge part of 71 A of inside arrangement | positioning parts induced | guided | derived to the inner side is connected with the edge part of the cable 72, as shown in FIG.6 and FIG.9.
That is, the operation strap 71 is guided from the position of the cable 72 to the position of the strap through hole 82 formed in the base cover 60 by the guide portion W2 that constitutes the guide wire W.

As shown in FIGS. 7 and 8, the guide wire W (particularly, the guide portion W2) is disposed on the opposite side (outside) from the rail device 4 with respect to the outer wall portion 41c constituting the side base portion 41. Is done. Thereby, the rigidity of the guide wire W can be improved.
Further, the guide wire W is disposed at a position between the first base connecting portion 42 and the second base connecting portion 43 in the front-rear direction. Thereby, the rigidity of the guide wire W can be improved.

<Sheet storage operation>
Next, the operation of moving the seat body from the use state to the storage state will be described with reference to FIGS. 10 and 11, the reclining device 13, the cushion rotating device 25, and the leg rotating device 28 are in a locked state when illustrated by a black circle, and are in an unlocked state when illustrated by a white circle. Shall be shown. The same applies to FIGS. 12 and 13.

  When the vehicle seat S is in the use state shown in FIG. 10A, the seat back 1 is supported by the support base 40, is locked in a standing posture by the reclining device 13, and is connected to the seat back 1. The cushion 2 is supported from below by the detachable legs 30 held by the leg holding member 50.

When the vehicle seat S is moved from the use state to the storage state, for example, an operation lever R (see FIG. 1) provided on the upper surface of the seat back 1 is operated.
When the occupant operates the operation lever R, as shown in FIG. 10B, the locked state of the reclining device 13 is released, and the seat back 1 moves the seat cushion 2 to the storage floor by the urging force of the spiral spring 14. Rotation is started toward the front side of the seat about the seat rotation shaft 12 so as to move to the front.
The detachable leg 30 starts to rotate toward the seat cushion 2 around the leg rotation shaft 28a with respect to the seat cushion 2 in conjunction with the rotation of the seat back 1. At this time, the detachable leg 30 is in a state of being stretched between the seat cushion 2 and the vehicle body floor side, so that the seat cushion 2 and the seat back 1 can be moved stably.
A known cable (not shown) is connected between the operation lever R and the reclining device 13, and the cable is pulled by the operation of the operation lever R to form a mechanism for releasing the locked state.

As shown in FIG. 11A, when the seat back 1 reaches a predetermined rotational position, the detachable leg 30 is detached from the leg holding member 50.
The detached detachable leg 30 rides on the upper surface of the base cover 60 and rotates so as to be folded toward the seat cushion 2 around the leg rotation shaft 28a against the urging force of the spring member 28b. Then, when the attachment / detachment leg 30 reaches a predetermined rotation position, the attachment / detachment leg 30 is locked in a state of being accommodated on the seat cushion 2 side by the leg rotation device 28.

Furthermore, as shown in FIG. 11B, when the seat back 1 reaches a predetermined rotational position, the front portion of the seat cushion 2 comes into contact with the storage floor surface before the attachment / detachment leg 30.
A sliding member (not shown) that is slidable with respect to the storage floor surface is attached to the front portion of the seat cushion 2, and the seat cushion 2 stably stabilizes the storage floor surface toward the front side of the seat. Can slide.

As a result of the above series of operations, as shown in FIG. 11C, the seat body is stored on the storage floor, and the vehicle seat S is switched to the stored state.
The seat cushion 2 is locked by the cushion rotating device 25 when the seat cushion 2 is in the stowed state, specifically when the seat back 1 is folded to the seat cushion 2 side.
The detachable leg 30 is disposed at a lower position than the leg holding member 50 in the stored state.

<Seat tip up operation>
Next, an operation for moving the seat body from the stored state to the tip-up state will be described with reference to FIG.
When the vehicle seat S is in the stored state shown in FIG. 12A, for example, the occupant manually raises the seat body to switch to the tip-up state shown in FIG. 12B.
At this time, since the cushion rotation device 25 locks the rotation operation of the seat cushion 2, the seat cushion 2 can be raised integrally by raising the seat back 1 upward.
In the tip-up state, by sliding the upper rail 4b toward the seat rear side with respect to the lower rail 4a, a wider cargo space can be secured on the seat front side.

  When the vehicle seat S is switched to the tip-up state shown in FIG. 12B, the seat back 1 returns to the same position as that in the use state, and is locked in a standing posture by the reclining device 13.

<Seat return operation>
Next, an operation for moving the seat body from the tip-up state to the use state will be described with reference to FIG.
When the vehicle seat S is moved from the tip-up state to the use state, as shown in FIG. 13A, for example, the detachable leg 30 that functions as an operation lever is operated.
When the occupant pulls the detachable leg 30 upward about the leg rotation shaft 28a, in other words, by pulling it in the direction away from the seat cushion 2, the cushion rotation device 25 and the leg rotation device 28 are locked. Canceled.
A known cable (not shown) is connected between the attachment / detachment leg 30 and the cushion rotation device 25, and the cable is pulled by the operation of the attachment / detachment leg 30 to release the locked state. Yes.

The seat cushion 2 is rotated downward with respect to the seat back 1 by the urging force of the spiral spring 27 as shown in FIG.
The attachment / detachment leg 30 rotates about the leg rotation shaft 28a to a position where it can be attached to the leg holding member 50 by the urging force of the spring member 28b as the leg rotation device 28 is released, and is attached to the leg holding member 50. Is done.
At this time, the detachable leg 30 moves toward the leg holding member 50 attached to the lower end side of the leg accommodating recess 62 by being guided by the leg accommodating recess 62 and the leg movement restricting portion 63 in the base cover 60. To come.
By the series of operations described above, the vehicle seat S returns to the use state shown in FIG.

<Other embodiments>
In the above embodiment, the storage floor is formed in front of the vehicle seat S, but the storage floor may be formed in the rear of the vehicle seat S without any particular limitation.
In that case, it is desirable that the positional relationship between the seat rotation shaft 12 and the detachable leg 30 in the seat front-rear direction is reversed.

  In the above-described embodiment, the storage state of the seat body has been described as corresponding to the movement state of the claims, but is not particularly limited, and the tip-up state or the like of the present embodiment corresponds to the movement state. Is of course good.

In the above embodiment, as shown in FIG. 10, when the detachable leg 30 is switched from the use state to the housed state, the detachable leg 30 rotates to the seat rear side around the leg rotation shaft 28 a with respect to the seat cushion 2. Although it is configured to be accommodated on the second side, the detachable leg 30 rotates to the front side of the seat around the leg rotation shaft 28a and is accommodated on the seat cushion 2 side without particular limitation. Also good.
At this time, the upper end portion of the detachable leg 30 is preferably arranged behind the lower end portion of the detachable leg 30 and inclined upward from the lower end portion side of the detachable leg 30 toward the upper end portion side of the detachable leg 30. It becomes easy to accommodate and rotate on the seat cushion 2 side.

  In the above-described embodiment, a stowable vehicle seat used for an automobile has been described as a specific example. However, the seat is not limited to this, and a vehicle seat such as a train or a bus, or a vehicle seat such as an airplane or a ship. Can also be used.

In the above-described embodiment, the rising formation portion 71C is formed on the operation strap 71 and the cloth belt is loosened to have a U-shape when viewed from the side, but is not limited thereto, for example, on the lower surface of the linear belt, You may form the projection part which becomes convex below by another member.
This separate member may be formed of the same material as the main body of the belt (cloth belt), or may be formed of another material such as a resin member (hard resin member) or a metal member.

In the above embodiment, one rising formation portion 71C is formed on the operation strap 71. However, the present invention is not limited to this, and a plurality of rising formation portions 71C may be formed continuously.
If formed in this way, the rigidity in the vicinity of the rising formation portion 71C can be improved, the tip portion of the gripping portion 71B can be effectively prevented from drooping, and gripping properties are improved.

In the above embodiment, the rising formation portion 71 </ b> C is formed on the operation strap 71, but the present invention is not limited to this, and a convex portion protruding upward is formed on the operation strap contact bottom wall 81 of the operation strap disposition portion 80. It is good also as a structure which forms and raises the holding part 71B.
If comprised in this way, the extension direction of the operation strap 71 can be controlled by changing the shape of the base cover 60 (operation strap arrangement | positioning part 81).

  In the above embodiment, the operation strap contact bottom wall 81 of the operation strap disposition portion 80 is substantially horizontal or slightly inclined, but the present invention is not limited to this, and the tip of the gripping portion 71B can be raised. As long as it can be configured, the surface may be any shape such as a substantially vertical surface or a curved surface.

In the present embodiment, the vehicle seat S according to the present invention has been mainly described.
However, said embodiment is only an example for making an understanding of this invention easy, and does not limit this invention. The present invention can be changed and improved without departing from the gist thereof, and the present invention includes the equivalents thereof.
In particular, the shape, arrangement, and configuration of the support base 40 and the base cover 60 described in the above embodiment are merely examples, and do not limit the present invention.

S Vehicle Seat 1 Seat Back 1a, 2a, 3a Cushion Pad 1b, 2b, 3b Skin 2 Seat Cushion 3 Headrest 4 Rail Device 4a Lower Rail 4b Upper Rail 70 Slide Lock Mechanism 71 Operation Strap 71A Internal Arrangement (Strap Body)
71B Grip part (Strap body)
71C Rising formation portion K1 One end portion K2 Other end portion K3, K4, K5 Position 72 Cable 73 Swing lever 73a Swing center shaft 74 Lock device 10 Back frame 11 Connection bracket 12 Seat rotation shaft 13 Reclining device 14 Spiral spring 20 Cushion Frame 21 Side frame 22 Front connection pipe 23 Center connection pipe 24 Pan frame 25 Cushion rotation device 26 Cushion rotation shaft 27 Spiral spring 28 Leg rotation device 28a Leg rotation shaft 28b Spring member 30 Removable leg 31 Leg main body 32 Leg Connection part 40 Support base 41 Side base part 41a Support wall part 41b Inner wall part 41c Outer wall part 42 First base connection part 43 Second base connection part 44 Reinforcement base part 44a Connection wall part 44b Inner wall part 44c Outer wall part 45 Holding member support 45a Bending portion 50 Leg holding member 51 Side wall portion 52 Bottom wall portion 53 Curled portion 54 Inertial locking device 60 Base cover 61 Front cover 62 Leg receiving recess 63 Leg movement restricting portion 64 Base abutting portion 65 Cover attaching portion 80 Operation strap disposing portion 81 Operation strap contact bottom wall 82 Recess side wall 82a Strap through hole 68 Rear cover W Guide wire W1 Standing portion W2 Guide portion W3 Front portion W4 Inner portion R Operation lever

Claims (12)

A seat body having a seat back serving as a backrest and a seat cushion coupled to the seat back and serving as a seat;
A vehicle seat that is switchable between a use state in which an occupant can be seated and a movement state in which the seat body is moved from the use state,
A support base provided on the vehicle body floor side and rotatably supporting the seat body above;
A rail device connected below the support base and sliding the seat body in the front-rear direction;
A base cover for covering the support base from above,
The rail device includes at least a locking device that prohibits sliding in the front-rear direction, and an operation strap that is connected to the locking device and serves as an action force input unit for releasing the sliding prohibited state. ,
The base cover is formed with a strap through hole for allowing the operation strap to pass through the base cover in and out.
In the operation strap, a lower surface side of a portion disposed in the strap through hole portion of a portion disposed outside the base cover is configured to be in contact with a part of the base cover. The vehicle seat, wherein an end side of the strap disposed outside is disposed above a side of the operation strap disposed at the strap through hole portion. In the operation strap, of the portion disposed outside the base cover, a portion formed in the strap through hole portion is provided with a rising formation portion projecting downward,
When the rising formation portion abuts on the outer surface of the base cover, the end side of the operation strap disposed on the outer side is the portion of the operation strap disposed on the strap through hole portion. The vehicle seat according to claim 1, wherein the vehicle seat is disposed above the vehicle. The operation strap is formed of a flexible material,
The vehicle seat according to claim 2, wherein the rising formation portion is configured by bending a part of the operation strap into a loop shape. The operation strap is formed by a strap body portion formed in a long shape and the rising formation portion,
4. The vehicle seat according to claim 2, wherein the rising formation portion is formed of the same material as that of the operation strap main body portion.   The loop shape formed as the rising formation portion is formed by forming a loop shape and sewing and fixing in a state where a part of the operation strap is bent. 4. The vehicle seat according to 4. The operation strap is formed by a strap body portion formed in a long shape and the rising formation portion,
The vehicle seat according to claim 2, wherein the rising formation portion is formed of a material different from the material of the operation strap main body portion.   The vehicle seat according to claim 6, wherein the rising portion is made of a hard resin.   The vehicle seat according to any one of claims 2 to 7, wherein the rising formation portion is formed in a size that cannot pass through the strap through hole.   The vehicular seat according to any one of claims 2 to 8, wherein a plurality of the rising formation portions are continuously formed adjacent to each other. The portion of the outer surface of the base cover that contacts the rising formation portion is:
The surface of any one shape selected from a substantially horizontal surface, a substantially inclined surface, and a substantially curved surface formed below the strap through hole. The vehicle seat according to claim 1. The portion of the outer surface of the base cover that contacts the rising formation portion is:
An operation strap disposition portion formed in the base cover, which is a recess recessed toward the inside of the base cover;
The operation strap disposing portion includes an operation strap abutting bottom wall that is a surface that defines a lower side, and a concave side wall that rises from at least a peripheral edge of the operation strap abutting bottom wall, and has a concave shape. Formed,
11. The strap through hole is formed in the side wall of the concave portion, and the lower end of the rising formation portion is in contact with the bottom surface wall of the operation strap. The vehicle seat according to any one of the above.   The base cover is provided with a protruding portion that protrudes upward, and the operation strap is in contact with the protruding portion, so that the end side of the operation strap that is disposed on the outer side is the operation strap. The vehicle seat according to claim 1, wherein the vehicle seat is disposed above a side of a portion disposed in the strap through hole portion.

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