JP2006298098A - Vehicle seat - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make a seat in such a storage state that the seat is not in abnormal contact with a floor even when the slide position of the seat is at the relative position where the seat and the floor are in abnormal contact with each other. <P>SOLUTION: In the vehicle seat, the seat 10 can be slide-moved in the longitudinal direction of the vehicle by a slide mechanism 20, and a folded seat 10 is made to be in an erected storage state with respect to a floor F by a turn storage mechanism 30 provided between the slide mechanism 20 and the floor F. The turn storage mechanism 30 is provided with a long member 36 which regulates the turning forward of the seat 10 in the storage state. When the slide position of the seat 10 is at the rear side position, the long member 36 regulates turning in a first turning position state before a headrest 13 becomes in an abnormal contact state to the floor surface Fs. The long member 36 regulates turning in a second turning position state before being in the abnormal contact state when the slide position of the seat 10 is at the front position where the slide position of the seat 10 becomes in an abnormal contact state in the turning regulation of the first turning position state. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a vehicle seat. Specifically, the seat is slidable in the vehicle front-rear direction with respect to the floor by the slide mechanism, and the seat in a state where the seat cushion and the seat back are folded is raised from the floor by the rotating storage mechanism. The present invention relates to a vehicle seat that can be in a retracted state.

2. Description of the Related Art Conventionally, a seat for a vehicle such as an automobile has been provided with a rotating storage mechanism that can be in a retracted state in which the seat when not in use is raised and rotated (tumbled) from the use position toward the front of the vehicle. There is. As this rotation storing mechanism, for example, at a front position of the seat, a mounting bracket attached to the seat side and a support bracket attached to the floor side are rotatably connected by a rotation shaft. It has been known. According to this rotational storage mechanism, the seat with the seat back folded to the seat cushion side is erected around the rotational axis so that the seat is stood up with respect to the floor. Can do.
Patent Document 1 described later discloses a technique in which both the rotational storage mechanism having the above-described configuration and a slide mechanism that can adjust the position of the seat in the longitudinal direction of the vehicle are employed with respect to the seat. . In this disclosure, the upper rail of the slide mechanism is integrally attached to the lower portion of the seat cushion, and the lower rail is integrally attached to the mounting bracket of the rotational storage mechanism. Therefore, when the seat is erected and rotated about the rotation axis, the seat in the slide lock state and the slide mechanism are integrally erected and rotated.

Registered Utility Model No. 2570900

However, in the case of the above-described conventional technology, that is, in a configuration in which both the rotation storing mechanism and the slide mechanism are adopted for the seat, the seat and the floor are moved when the seat is erected and rotated by the slide position of the seat. In some cases, the seat cannot be rotated properly, such as by interference with the surface.
That is, for example, when the seat is slid toward the front of the vehicle, the turning radius around the turning shaft of the seat becomes smaller, or the seat shape becomes a related position that protrudes forward of the vehicle from the position of the turning shaft. Or In such a case, if the seat is erected and rotated around the rotation axis, the sheet may be in a rotation configuration in which the sheet interferes with the floor surface.
Therefore, as a configuration for avoiding interference between the seat and the floor surface, for example, it is conceivable to set the floor surface at a position where the seat is in a standing posture to a low position. Further, it is conceivable to set the rotation shaft at a position that is further forward than the sheet shape and to increase the rotation radius around the rotation axis of the seat. However, the former configuration is not effective because, for example, the floor shape may be restricted in design and the floor surface may not be set at a desired low position. Further, the latter configuration is not preferable because the pivot shaft is disposed so as to protrude forward with respect to the seat shape and the foot space of the occupant seated on the seat may be hindered.
Accordingly, when the seat is in a pivoting configuration that interferes with the floor surface as described above, for example, the headrest constituting the pivoting end of the seat interferes with the floor surface and is crushed or soiled. There was a case of abnormal contact.

  The present invention was devised to solve the above-described problems, and the problem to be solved by the present invention is that the seat slide position is raised in the process of standing up to the standing posture position aimed at the seat. Even when the interference part such as the floor is in a relational position where an abnormal contact state occurs, the seat is in a retracted state in which the sheet is not abnormally contacted with the interference part.

In other words, according to the first aspect of the present invention, the seat cushion and the seat back constituting the seat are connected so as to be foldable, and the seat is floored by a slide mechanism provided between the seat cushion and the vehicle floor. The vehicle is slidable in the vehicle front-rear direction with respect to the side, and the slide mechanism is attached to the floor via a rotation storage mechanism that allows the seat to rotate in the vehicle front-rear direction, A seat for a vehicle in which a folded seat and a slide mechanism can be stowed with respect to a floor by a rotating storage mechanism, and the rotating storage mechanism has a fixed side member of the slide mechanism on the floor. The floor side member provided integrally is rotatably connected by a rotation shaft, and the folded sheet is stowed in a stowed state in which the seat is erected with respect to the floor. The rotation restricting means for restricting the rotation of the vehicle forward in the vehicle direction is provided, and the rotation restricting means connects the fixed side member and the floor side member of the slide mechanism. This connection positional relationship is such that the linear distance between the two positions gradually increases as the sheet rotates in the retracted state, and the maximum allowable connection length between the two positions by the rotation restricting member. The rotation is restricted by the maximum allowable connection length by the rotation restricting member, and the maximum is when the slide position is relatively forward than when the slide position is relatively backward. The allowable connection length is shortened and the rotation angle is reduced.
According to the first aspect of the invention, the rotation restricting means provided in the rotation storage mechanism changes the standing posture position of the sheet when the sheet is in the storage state according to the slide position. The change in the standing posture position is performed by changing the maximum allowable connection length of the rotation restricting member that restricts the rotation of the seat in the vehicle front direction according to the slide position. Thus, when the slide position is at a relatively rear position, for example, when the seat and the interference portion such as the floor are not in an abnormal contact state even when the seat is erected and rotated, the seat is erected with respect to the floor. The rotation is restricted by the rotation angle at which it is stored. On the other hand, when the slide position is at a relatively forward position, for example, when the seat and the interference part such as the floor are in an abnormal contact state in the process of rotating the seat upright, the slide position is at a relatively rear position. The rotation is restricted at a small rotation angle, for example, a rotation angle before the seat is in an abnormal contact state with an interference part such as a floor. Further, the regulation force for regulating the rotation of the seat always acts only between the fixed side member and the floor side member.
Here, the “abnormal contact state” means that the sheet is in an unfavorable contact state with respect to other interference sites. For example, there is a case where a predetermined portion of the seat that has been erected is in contact with the floor surface and gets dirty or interferes with the front seat and is crushed.

Next, according to a second aspect of the present invention, in the first aspect described above, the rotation restricting member is a long body having a rigid and long shape, and the long member can be rotated to the floor side member. The rotation restricting member and the floor side member are connected with each other, and the long member is urged to rotate in the retracted state by the urging means acting on the long member. A long hole is formed in the longitudinal direction of the long member, and a rotation restricting member is formed by an engagement in which an engagement pin provided on the fixed side member is loosely fitted in the long direction and the rotational direction. The maximum allowable connection length between the two positions by the rotation restricting member is set by the contact of the engagement pin with the outermost peripheral edge of the rotation of the long hole, As for the shape of the outer periphery, the linear length from the connecting position of the rotation restricting member and the floor side member in the circumferential direction is the stored state. The operation member that engages with the elongate member by sliding the seat forward and rotates the elongate member in the opposite direction against the biased rotation is formed with the seat. Provided on the integrally moving member, the maximum allowable connection length is shortened and the rotation angle is reduced when the slide position is relatively forward rather than when the slide position is relatively backward. .
According to the second aspect of the present invention, when the seat is raised and rotated, the engagement pin moves within the range of the shape (length dimension) of the long hole formed in the long member. And when an engagement pin contact | abuts with the outermost periphery of rotation of a long hole, rotation to the vehicle front direction of a sheet | seat is controlled. This long hole is in a state where the maximum allowable connection length that allows the engagement pin to move is shorter when the slide position is relatively forward than when the slide position is relatively backward.

Next, according to a third aspect of the present invention, in the second aspect described above, the shape of the outermost peripheral edge of the long hole is a multistage shape in the circumferential direction.
According to the third aspect of the invention, when the slide position is relatively forward, the maximum permissible connection length of the long hole allowing the movement of the engagement pin is switched stepwise according to the slide position. As a result, the engagement pin moving in the long hole comes into contact with the position of each step formed on the outermost peripheral edge of the long hole.

Next, according to a fourth aspect of the present invention, in the first aspect described above, the rotation restricting member is a deformable flexible and long flexible member, and one end of the flexible member. Is attached to the fixed side member to constitute a connection between the rotation restricting member and the fixed side member, and the other end is attached to the floor side member to constitute a connection between the turn restricting member and the floor side member. The maximum allowable coupling length between the two positions by the rotation restricting member is set by the linear length between the two positions of the long member, and the flexible member is slid by sliding the seat forward. An operation member that abuts the flexible member and bends the flexible member to shorten the linear length is provided on the member that moves integrally with the seat, and the slide position is relatively forward than when the slide position is relatively backward. The maximum allowable connection length is shortened and the rotation angle is reduced. Is shall.
According to the fourth aspect of the invention, when the flexible member rotates the seat in the vehicle forward direction, both ends are pulled and become in a tension state. Thereby, the rotation of the sheet is restricted. That is, the linear length connecting both ends when the flexible member is in a tension state is set as the maximum allowable connection length of the flexible member. The flexible member abuts on the operation member when the slide position is relatively forward and is held in a bent state. Thereby, the maximum permissible connection length of the flexible member becomes shorter than the state before bending. In addition, the amount of bending of the flexible member that is bent in contact with the operation member changes according to the slide position, and the rotation angle when the flexible member enters a tension state changes. Therefore, the maximum allowable connection length can be switched variously according to the slide position.

The present invention can obtain the following effects by taking the above-described means.
That is, according to the first invention of the present invention, even when the seat and the interference part such as the floor are in an abnormal contact state in the process of raising the slide position to the standing posture position aimed at the seat, The seat can be in a retracted state in which the sheet is not brought into abnormal contact with the interference site. Therefore, for example, a predetermined part such as a headrest of the seat that has stood up is not contaminated with the floor surface, and is not interfered with the front seat and is not crushed. In addition, the regulating force for regulating the rotation of the seat can be applied only between the fixed-side member and the floor-side member configured with a relatively high support strength. Therefore, the load applied to other members such as a slide mechanism is reduced, so that the seat can be stored in a suitable manner.
Furthermore, according to the second aspect of the present invention, the rotation angle position for restricting the rotation of the sheet can be suitably switched according to the slide position. In addition, since the rotation restricting member is a rigid body, the rotation restricting member is configured to withstand the load received by the urging member that urges the sheet in the storage direction and the load received when the user operates the sheet in the storage direction. be able to.
Furthermore, according to the third aspect of the present invention, since the engagement pin contacts the position of each step of the long hole, a good contact state can be achieved.
Furthermore, according to the fourth aspect of the present invention, the sheet can be stored in a suitable manner by a simple configuration in which the fixed side member and the floor side member are connected by the flexible member. Further, the rotation restriction angle of the seat can be variously adjusted according to the slide position.

  Embodiments of the best mode for carrying out the present invention will be described below with reference to the drawings.

  First, the vehicle seat of Example 1 will be described with reference to FIGS. FIG. 1 is a side view showing a retracted state of the vehicle seat, and FIG. 2 is an enlarged view of the structure of the rotating storage mechanism 30 when the slide position is at a related position corresponding to the second rotating position state. FIG. 3 is a side view, FIG. 3 is an enlarged side view showing the configuration of the rotary storage mechanism 30 when the slide position is at a relative position corresponding to the first rotary position state, and FIG. 4 is a long member of FIG. FIG. 5 is a side view showing the retracted state of the sheet 10 in FIG. 3, and FIG. 6 shows the retracted state of the sheet 10 in FIG. FIG. In each of the above drawings, the left direction in the drawing is represented as the front direction of the vehicle.

  The vehicle seat of this embodiment is applied as a vehicle rear seat. As shown in FIGS. 5 and 6, the vehicle seat is normally in a position in which the seat 10 is installed on the floor F when the occupant is seated and used. As shown in the figure, the vehicle seat is provided with a slide mechanism 20 that allows the seat 10 to slide relative to the floor F in the vehicle front-rear direction. Further, in the vehicle seat, a rotation storage mechanism 30 that allows the seat 10 when not in use to stand up and rotate from the use position toward the front of the vehicle with the seat back 12 and the seat cushion 11 folded. Is provided. The rotation storage mechanism 30 supports the seat 10 in which the slide mechanism 20 is in the slide lock state so that the seat 10 can be rotated up and down with respect to the floor F. Further, the rotation storage mechanism 30 sets the rotation position of the seat 10 that has been turned upright to the first rotation position (the position indicated by the solid line in FIG. 5) or the second rotation position (FIG. 6). The position indicated by the solid line in FIG. Thereby, it can be set as the stowed state which stood the sheet | seat 10 in the said each rotation position, and the expansion of the luggage compartment space behind the sheet | seat 10 can be aimed at.

Here, the “first rotation position” is a rotation position in a posture in which the seat 10 is substantially erected with respect to the floor F as well shown in FIG. Further, the “second rotation position” means a posture in which the seat 10 is raised to a rotation position having a slightly smaller rotation angle than the first rotation position, as well shown in FIG. It is a rotation position. That is, as shown in FIG. 5, the rotational storage mechanism 30 is in an abnormal contact state between the seat 10 and the floor surface Fs even when the seat 10 slides up to the first rotational position. The rotation of the seat 10 is indicated by the first rotation position state (indicated by the solid line) when the position is not related (details will be described later) (hereinafter referred to as the relationship position corresponding to the first rotation position state). (Position state). Further, as well shown in FIG. 6, when the seat 10 is slid up to the first rotational position, the seat 10 and the floor surface Fs are in an abnormal contact state (indicated by the phantom line in FIG. 1). The second rotation position state (FIG. 1), which is the rotation position before the seat 10 and the floor surface Fs are in an abnormal contact state. And the position state indicated by the solid line in FIG. Here, the abnormal contact state is a state in which, for example, as shown well in FIG. 1, the rotating lower end (the headrest 13 in this embodiment) of the seat 10 that has stood interferes with the floor surface Fs. That is, the headrest 13 is in an unfavorable contact state such as being crushed or soiled by the floor surface Fs.
In the vehicle seat of this embodiment, as well shown in FIG. 1, when the slide position of the seat 10 is set at the foremost position of the slidable range, the seat 10 is raised to the first rotation position. Thereby, it is set as the arrangement configuration in which the sheet 10 is in an abnormal contact state with the floor surface Fs. Therefore, when the seat 10 is in the foremost slide position, the turning storage mechanism 30 restricts the turning of the seat 10 to the second turning position state.
Hereinafter, the configuration of each part of the vehicle seat will be described in detail.

First, as is well shown in FIG. 5, the seat cushion 11 and the seat back 12 are connected to each other by a reclining mechanism (not shown). As a result, the seat back 12 can be pivoted about a reclining shaft (not shown), and the standing angle with respect to the seat cushion 11 can be adjusted. The seat back 12 is held in a posture position in which the seat back 12 stands up with respect to the seat cushion 11 when the seat 10 is in use. The seat back 12 is configured to be folded toward the seat cushion 11 in conjunction with an operation of releasing a release lever (not shown) provided on the seat cushion 11, for example. In addition, since the structure of the interlocking mechanism with respect to a reclining mechanism and a release lever is a well-known thing, detailed description is abbreviate | omitted.
Further, as well shown in FIG. 5, the seat 10 is positioned and fixed in a state where it is installed on the floor F when the occupant is seated and used. Specifically, the seat 10 is supported with respect to the floor F by a rotating storage mechanism 30 provided at the front lower portion of the seat cushion 11 and a lock mechanism 14 provided at the rear lower portion of the seat cushion 11. Yes. Strictly speaking, the upper rail member 22 of the slide mechanism 20 is integrally attached to the lower portion of the seat cushion 11, and the rotary storage mechanism 30 and the lock mechanism 14 are attached to the lower rail member 21 of the slide mechanism 20. It is attached. The configuration of the former rotating storage mechanism 30 will be described in detail later. The latter locking mechanism 14 is provided integrally with the lower rail member 21 and includes a hook (not shown) that can be engaged and locked with the striker S installed on the floor F. For example, the hook is configured to move in and out in conjunction with the operation of the release lever described above. Thereby, it can switch to the engagement locked state which engaged the hook with striker S, and the cancellation | release state which pulled out and removed the hook. In the state where the lock mechanism 14 is engaged and locked with the striker S, the seat 10 can be restricted so that it cannot stand up and rotate. In addition, since the structure of the interlocking mechanism with respect to the lock mechanism 14 and the release lever is a well-known one, detailed description is omitted.

Next, as is well shown in FIGS. 2 to 4, the slide mechanism 20 includes a lower rail member 21 integrally attached to the mounting bracket 31 of the rotational storage mechanism 30, and the seat cushion 11 (see FIG. 5). And an upper rail member 22 integrally attached to the lower portion. The slide mechanism 20 is in an installation state in which the upper rail member 22 is movable in the longitudinal direction with respect to the lower rail member 21. The slide mechanism 20 is configured to be arbitrarily slide-locked at a plurality of set slide positions by performing an unlocking operation of a slide lock member (not shown). Here, the mounting bracket 31 corresponds to the stationary member of the present invention.
As well shown in FIGS. 2 and 3, an operation member 38 of a rotation storage mechanism 30 described later is integrally attached to the front end portion of the upper rail member 22. The operation member 38 moves integrally with the upper rail member 22 when the upper rail member 22 slides. Specifically, as shown in FIG. 2, the operation member 38 is disposed so as to engage with a long member 36 to be described later when the slide position is set to the foremost position.

  Next, the rotation storage mechanism 30 is provided between the slide mechanism 20 and the floor F, as well shown in FIGS. Specifically, the rotating storage mechanism 30 includes a mounting shaft 31 integrally attached to the seat 10 (see FIG. 5) side and a support bracket 32 integrally attached to the floor F side. It is set as the structure connected so that rotation was possible. The former mounting bracket 31 is integrally attached to the lower rail member 21 of the slide mechanism 20. The latter support bracket 32 is integrally attached to the floor F. As a result, the seat 10 (see FIG. 5) can rotate about the rotation shaft 33 with respect to the floor F. In addition, a spring member (not shown) is attached between the mounting bracket 31 and the support bracket 32 to urge the mounting bracket 31 in the upright direction of the seat 10 (see FIG. 5). As a result, the seat 10 is always in a state of being urged to rotate with respect to the floor F. As a result, it is possible to apply a holding force for holding the sheet 10 in the upright rotation position to the upright rotated sheet 10. In addition, about the structure of a spring member, since it is a well-known thing, detailed description is abbreviate | omitted. Here, the support bracket 32 corresponds to the floor side member of the present invention.

2 and 3, a long member 36 having a long and rigid shape is disposed between the mounting bracket 31 and the support bracket 32. As shown in FIG. The long member 36 is rotatably connected to the side surface portion of the support bracket 32 by a connecting pin 35. The setting position of the connecting pin 35 is a position away from the rotation shaft 33, and is a lower right position than the rotation shaft 33 as seen in FIGS. 2 and 3. Further, a long hole 36a is formed in the long member 36 along the longitudinal direction thereof. And in this long hole 36a, the engagement pin 34 integrally provided in the side part of the attachment bracket 31 is arrange | positioned. The engaging pin 34 is in an engaged state in which the long member 36 is loosely fitted in the longitudinal direction or the rotational direction. Therefore, as shown by the phantom lines in FIGS. 2 and 3, when the seat 10 is turned upright, the engaging pin 34 moves relatively away from the connecting pin 35 and moves to both positions. The linear length between them is gradually increased. Then, when the engagement pin 34 comes into contact with the outermost peripheral edge 36d of the rotation of the long hole 36a, the standing rotation of the seat 10 is restricted.
As shown in FIGS. 2 and 3, the long hole 36 a has a first long hole part 36 b and a second long hole part 36 c that are different in length from each other and communicated in the width direction. It is formed into a shape. Specifically, the first long hole 36b is engaged with the engagement pin 34 when the seat 10 is erected and rotated to the first rotation position (see FIG. 5), as indicated by an imaginary line in FIG. Is formed as a length abutting on the outermost peripheral edge 36d. In addition, the second long hole portion 36c is formed to have a shorter length than the first long hole portion 36b, and as shown in FIG. 2, the second long hole portion 36c is the same as the first long hole portion 36b. It is arrange | positioned in the position above the paper surface shown by. As shown by the phantom line in FIG. 2, the second long hole portion 36 c has the engagement pin 34 at the most when the seat 10 is erected and rotated to the second rotation position (see FIG. 6). It is formed as a length that comes into contact with the outer peripheral edge 36d. That is, the shape of the outermost peripheral edge 36d of the long hole 36a is such that the linear length from the connecting pin 35 is gradually reduced toward the retracted state in the circumferential direction.
A spring member 37 is provided between the elongate member 36 and the support bracket 32 to connect these members. Here, the spring member 37 corresponds to the biasing means of the present invention. Due to the spring action of the spring member 37, the long member 36 is urged to rotate in the direction in which the seat 10 stands up and rotates (in the retracted state). Then, the elongated member 36 that is urged to rotate is held in a state in which the rotation is restricted at the rotation position where the elongated hole 36 a contacts the lower surface of the engagement pin 34, as well shown in FIG. 3. Yes. In other words, when the slide position of the seat 10 is in a related position corresponding to the first rotation position state, the engagement pin 34 is held in a state of being disposed in the first long hole portion 36b.
Further, as well shown in FIG. 2, when the seat 10 is slid to the related position corresponding to the second rotation position state, that is, the foremost slide position, the operation member 38 is engaged with the long member 36. . Specifically, as shown in FIG. 4, the operation member 38 is engaged in the rotating direction of the long member 36. Thereby, as shown in FIG. 2, the long member 36 is pushed down in the opposite direction against the rotation urged by the spring member 37. As a result, the engagement pin 34 moves from the first long hole portion 36b to the second long hole portion 36c and is held in this arrangement state. Further, since the engagement state of the operation member 38 and the long member 36 is held by the rotational biasing force of the spring member 37, the engagement state remains even if the seat 10 is rotated upright. Retained. Therefore, the engaging pin 34 in the state of being disposed in the second long hole portion 36c moves in the second long hole portion 36c as it is along the longitudinal direction as the seat 10 is turned upright. . Then, as shown by the phantom line in FIG. 2, the engagement pin 34 is formed in the second long hole portion 36 c when the seat 10 is erected and rotated to the second rotation position (see FIG. 6). It contacts the outermost peripheral edge 36d.
That is, in the long member 36, the rotation position state associated with the engagement of the operation member 38 changes depending on the slide position, whereby the maximum allowable connection length between the engagement pin 34 and the connection pin 35 is stepwise. It is the structure which changes to (switchable).

For example, as shown in FIG. 5, the vehicle seat having the above-described configuration is as follows when the slide position of the seat 10 is in the relation position corresponding to the first rotation position state, that is, the rear slide position. Thus, the sheet 10 is in the retracted state. That is, first, the operation member 38 in this case is disposed at a position where it does not engage with the long member 36 as well shown in FIG. Therefore, the engaging pin 34 is held in a state of being disposed in the first long hole portion 36b. When the seat 10 at the slide position is turned upright, the engagement pin 34 comes into contact with the outermost peripheral edge 36d of the first long hole portion 36b. Thereby, the sheet 10 is restricted from being rotated at the first rotation position. At this time, the restricting force for restricting the rotation of the seat 10 acts only between the mounting bracket 31 and the support bracket 32 that are engaged with the long member 36.
Further, as well shown in FIG. 6, when the slide position of the seat 10 is in the relation position corresponding to the second rotation position state, that is, the foremost slide position, the seat 10 is set in the retracted state as follows. Become. That is, first, the operation member 38 in this case is disposed at a position where the operation member 38 is engaged with the long member 36, as well shown in FIG. Thereby, since the long member 36 is pushed down, the engaging pin 34 moves from the first long hole portion 36b to the second long hole portion 36c and is held in this arrangement state. Therefore, when the seat 10 in this state is turned upright, the engagement pin 34 comes into contact with the outermost peripheral edge 36d of the second long hole portion 36c. Thereby, the rotation of the sheet 10 is restricted at the second rotation position. At this time, the restricting force for restricting the rotation of the seat 10 acts only between the mounting bracket 31 and the support bracket 32 that are engaged with the long member 36.

Then, the usage method of the vehicle seat of a present Example is demonstrated.
First, as well shown in FIG. 5, the case where the slide position of the seat 10 is in the relation position corresponding to the first rotation position state, that is, the rear slide position will be described. First, by releasing a release lever (not shown) of the seat 10, the seat back 12 is folded to the seat cushion 11 side, and the lock mechanism 14 is released. As a result, the seat 10 is rotated in the upright direction by an urging action of a spring member (not shown) provided in the rotation storage mechanism 30. Then, the rotation of the seat 10 is restricted in the first rotation position where the engagement pin 34 abuts on the outermost peripheral edge 36d of the first long hole 36b, as indicated by the phantom line in FIG. Is done. As a result, the seat 10 is in a stowed state in which the seat 10 stands up with respect to the floor F without being in an abnormal contact state with the floor surface Fs.
Next, a case where the slide position of the seat 10 is in the foremost position (related position corresponding to the second rotation position state) will be described as well shown in FIG. In this state, as shown in FIG. 2, the operation member 38 is in a related position where it engages with the long member 36. Thereby, the elongate member 36 is pushed down and the engaging pin 34 is arrange | positioned in the 2nd long hole part 36c. Therefore, first, by releasing a release lever (not shown) of the seat 10, the seat back 12 is folded to the seat cushion 11 side, and the lock mechanism 14 is released. As a result, the seat 10 is rotated in the upright direction by an urging action of a spring member (not shown) provided in the rotation storage mechanism 30. Then, the rotation of the seat 10 is restricted in the second rotation position where the engagement pin 34 abuts on the outermost peripheral edge 36d of the second long hole portion 36c, as shown by the phantom line in FIG. Is done. As a result, the seat 10 is in a stowed state in which the seat 10 stands up with respect to the floor F without being in an abnormal contact state with the floor surface Fs.

Thus, according to the vehicle seat of the present embodiment, the seat 10 and the floor surface Fs are in the process of raising the slide position of the seat 10 to the standing posture position (first rotation position) aiming at the seat 10. Can be in a retracted state in which the seat 10 is not abnormally contacted with the floor surface Fs (second rotational position state). Therefore, it is preferable that the headrest 13 of the seat 10 that has stood up does not interfere with the floor surface Fs (see FIG. 1) and get dirty or crushed.
Further, the position of the operation member 38 varies according to the slide position of the seat 10, and along with this variation, the maximum allowable connection length of the long member 36 that restricts the standing rotation of the seat 10. Switching can be performed in stages. Therefore, switching of the rotation position state for restricting the rotation of the seat 10 can be suitably performed. Further, since the engagement pin 34 is in a straight contact state in the moving direction with respect to the outermost peripheral edge 36d of each of the long hole portions 36b and 36c, the contact state can be improved. Furthermore, the restricting force for restricting the rotation of the seat 10 can be applied only between the mounting bracket 31 and the support bracket 32 configured to have a relatively high support strength. Therefore, since the load accompanying regulation force does not act on other members, such as slide mechanism 20, sheet 10 can be made into a storing state in a suitable mode.

Next, the vehicle seat of Example 2 will be described with reference to FIGS. FIG. 7 is an enlarged side view showing the configuration of the rotation storage mechanism 40 when the slide position is at a related position corresponding to the first rotation position state, and FIG. 8 is the second rotation position. It is the side view which expanded and showed the structure of the rotation storing mechanism 40 when it exists in the relationship position corresponding to a state. In addition, in a present Example, about the location which show | plays the structure and effect | action similar to the vehicle seat of Example 1, the same code | symbol is attached | subjected, description is abbreviate | omitted, and a different code | symbol is attached | subjected about a different structure in detail. I will explain. Moreover, about the structure which is not shown by FIG.7 and FIG.8 of the sheet | seat 10 etc., the structure of the same code | symbol shown by FIGS. 1-6 of Example 1 shall be referred suitably.
In the vehicle seat of the present embodiment, as shown in FIGS. 7 and 8, the rotational storage mechanism 40 is provided between the slide mechanism 20 and the floor F.

Specifically, the rotation storage mechanism 40 includes a mounting bracket 41, a support bracket 42, a rotation shaft 43, and an operation member 47 that have substantially the same configuration as that of the rotation storage mechanism 30 shown in the first embodiment. Yes.
As shown in FIG. 8, the operation member 47 is disposed so as to abut on a string member 46 described later when the slide position of the seat 10 is set to a relatively forward position. Here, the string member 46 corresponds to the flexible member of the present invention.
The string member 46 is a long and flexible member that can be deformed, and is disposed between the mounting bracket 41 and the support bracket 42. Specifically, the string member 46 connects the rotation side pin 44 integrally provided on the side surface portion of the mounting bracket 41 and the fixed side pin 45 integrally provided on the side surface portion of the support bracket 42. ing. The setting position of the fixed side pin 45 is a position away from the rotation shaft 43 and is a lower right position than the rotation shaft 43 as seen in FIGS. Further, as shown by the phantom line in FIG. 7, when the seat 10 is turned upright, the rotation side pin 44 moves relatively away from the fixed side pin 45 and linearly moves between the two positions. Increase the target length gradually. Then, when both ends of the string member 46 are pulled by the movement of the rotation side pin 44 and become in a tension state, the rotation of the sheet 10 is restricted. That is, the linear length connecting both ends when the string member 46 is in a tension state is set as the maximum allowable connection length of the string member 46. Here, the string member 46 is formed as a length that is in a tension state when the seat 10 is raised and rotated to the first rotation position when the string member 46 is in a free state where it does not contact the operation member 47.

  Further, as well shown in FIG. 8, the string member 46 is bent by being pushed into the operation member 47 when the sliding position of the seat 10 is relatively forward. FIG. 8 shows a state when the seat 10 is at the foremost slide position (a related position corresponding to the second rotation position state). Specifically, the operation member 47 contacts the string member 46 when the slide position of the seat 10 is relatively forward. When the seat 10 is further slid forward from this state, the string member 46 is pushed and bent according to the increment of the slide amount. In this case, when the seat 10 is turned upright while the string member 46 is bent, the string member 46 is tensioned at a smaller rotation angle than the state before bending as shown by the phantom line in FIG. It becomes a state. Thereby, the rotation of the sheet 10 is restricted. Specifically, the string member 46 is in a tensioned state when the seat 10 is erected and rotated to the second rotation position in a state where the sheet 10 is in the foremost sliding position and is bent by the operation member 47. . Further, when the string member 46 is bent by the operation member 47 at other slide positions, the rotation angle when the string member 46 is in a tension state changes according to the bending amount of the bending. That is, the maximum allowable connection length of the string member 46 varies in various ways according to the slide position of the seat 10. Therefore, for example, even when the seat 10 and the floor surface Fs are in a relational position where the seat 10 and the floor surface Fs are in an abnormal contact state before the slide position of the seat 10 becomes the foremost position, Since the maximum allowable connection length is adjusted, the rotation of the sheet 10 can be restricted at the rotation position before the abnormal contact state is reached.

Then, the usage method of the vehicle seat of a present Example is demonstrated.
That is, first, as well shown in FIG. 7, when the slide position of the seat 10 is in a related position corresponding to the first rotation position state, the operation member 47 is not in contact with the string member 46. . Therefore, as shown by the phantom line in FIG. 7, the string member 46 is in a tensioned state when the seat 10 is erected and rotated to the first rotation position state. Thereby, the rotation of the sheet 10 is restricted to the first rotation position state.
Also, as well shown in FIG. 8, when the slide position of the seat 10 is in the foremost position, that is, in the related position corresponding to the second rotation position state, the operation member 47 abuts on the string member 46. The string member 46 is held in a bent state. Therefore, as shown by the phantom line in FIG. 8, the string member 46 is in a tensioned state when the seat 10 is erected and rotated to the second rotation position state. Thereby, the rotation of the seat 10 is restricted to the second rotation position state.
Further, for example, even when the seat 10 and the floor surface Fs are in a relational position where the seat 10 and the floor surface Fs are in an abnormal contact state when the seat 10 is in a relatively forward position before the foremost position, the string member according to the slide position. Since the maximum allowable connection length 46 is adjusted, the rotation of the seat 10 can be restricted at the rotation position before the abnormal contact state occurs.
As described above, according to the vehicle seat of the present embodiment, the seat 10 is brought into the retracted state in a suitable manner by the simple configuration in which the mounting bracket 41 and the support bracket 42 are connected by the flexible string member 46. be able to. Further, the rotation restriction angle of the seat 10 can be variously adjusted according to the slide position. Therefore, the cargo space behind the seat 10 can be more suitably secured in accordance with the slide position. Furthermore, the regulating force that regulates the rotation of the seat 10 can be mainly applied only between the mounting bracket 41 and the support bracket 42 that are configured to have a relatively high support strength. Therefore, since the load accompanying regulation force does not act on other members, such as slide mechanism 20, sheet 10 can be made into a storing state in a suitable mode.

Subsequently, the vehicle seat of Example 3 will be described with reference to FIGS. 9 and 10. FIG. 9 is an enlarged side view showing the configuration of the rotary storage mechanism 50, and FIG. 10 is a side view showing the storage state of the sheet 10 at each slide position. In addition, in a present Example, about the location which show | plays the structure and effect | action similar to the vehicle seat of Example 1, the same code | symbol is attached | subjected, description is abbreviate | omitted, and a different code | symbol is attached | subjected about a different structure in detail. I will explain. For configurations not shown in FIGS. 9 and 10, the configurations with the same reference numerals shown in FIGS.
In the vehicle seat of the present embodiment, as shown in FIG. 9, the rotational storage mechanism 50 is provided between the slide mechanism 20 and the floor F.

Specifically, the rotation storage mechanism 50 has a mounting bracket 51, a support bracket 52, a rotation shaft 53, and an engagement that are substantially the same as the configuration of the rotation storage mechanism 30 (see FIG. 2) shown in the first embodiment. Pin 54, connecting pin 55, long member 56, long hole 56a, outermost peripheral edge 56d, first long hole part 56b, second long hole part 56c, spring member 57 (corresponding to the biasing means of the present invention) )) And an operation member 58.
As shown in FIG. 9, the operation member 58 is disposed so as to engage with a long member 56 described later when the slide position of the seat 10 is set to a relatively forward position.
Next, a third long hole portion 56e is formed in the long member 56 at a position between the first long hole portion 56b and the second long hole portion 56c. The length of the third long hole portion 56e is set to a length between the first long hole portion 56b and the second long hole portion 56c. Further, an engaging surface 56 f that engages with the operation member 58 when the sliding position of the seat 10 is relatively forward is formed on the upper surface portion of the long member 56. The engagement surface 56f is formed to be inclined in a taper shape, and the engagement portion with the operation member 58 changes depending on the slide position of the seat 10. Thereby, according to the slide position of the sheet | seat 10, arrangement | positioning of the engagement pin 54 is each switched to the position of the 1st long hole part 56b, the 2nd long hole part 56c, and the 3rd long hole part 56e. Can do. Therefore, as shown by the solid line in FIG. 10, the rotation restriction position of the seat 10 can be set in more stages.

Then, the usage method of the vehicle seat of a present Example is demonstrated.
That is, first, as well shown in FIG. 9, when the slide position of the seat 10 is in a related position corresponding to the first rotation position state, the engagement pin 54 is disposed in the first long hole portion 56b. Is done. Therefore, the rotation of the seat 10 is restricted in the first rotation position where the engagement pin 54 contacts the outermost peripheral edge 56d of the first long hole portion 56b. As a result, as shown in FIG. 10, the seat 10 is in a stowed state standing with respect to the floor F without being in abnormal contact with the floor surface Fs (upper phantom line position in FIG. 10).
Further, when the slide position of the seat 10 is at the foremost position, that is, at a related position corresponding to the second rotation position state, the operation member 58 engages with the engagement surface 56f of the long member 56, and the engagement pin 54 is disposed in the second slot 56c. Therefore, the rotation of the seat 10 is restricted in the second rotation position state where the engagement pin 54 contacts the outermost peripheral edge 56d of the second long hole portion 56c. As a result, the seat 10 is in the stowed state standing with respect to the floor F without being in an abnormal contact state with the floor surface Fs (lower imaginary line position in FIG. 10).
Further, when the seat 10 is in a relatively forward position before the slide position becomes the foremost position, the engagement pin 54 has the first length due to the engagement state between the operation member 58 and the engagement surface 56 f of the long member 56. It arrange | positions at the 3rd long hole part 56e between the hole part 56b and the 2nd long hole part 56c. Therefore, the rotation of the seat 10 is restricted in a position state where the engagement pin 54 contacts the outermost peripheral edge 56d of the third long hole portion 56e. Thereby, as shown by the solid line in FIG. 10, the seat 10 is not in an abnormal contact state with the floor surface Fs, and is in a position between the first rotation position state and the second rotation position state. The stowed state stands with respect to the floor F.
Thus, according to the vehicle seat of the present embodiment, the maximum allowable connection length by the long member 56 can be changed in multiple stages according to the slide position. Therefore, the cargo space behind the seat 10 can be more suitably secured in accordance with the slide position.

Although the embodiments of the present invention have been described in the three examples, the present invention can be implemented in various forms in addition to the above examples.
For example, in the first to third embodiments, the time when the slide position of the seat 10 is set to the foremost position is shown as the state corresponding to the second rotation position state. What is necessary is just to determine suitably according to the arrangement | positioning relationship with other members, such as a floor shape and a front seat | sheet. In addition, the installation position of the operation member is not limited to the front end portion of the upper rail member, and may be set as appropriate in accordance with the arrangement relationship.
In the first and third embodiments, the shape of the outermost peripheral edges 36d and 56d of the long holes 36a and 56a is changed stepwise so that the engaging pins 34 and 54 come into contact with the positions of the respective steps. However, the shape of the outermost peripheral edge may change linearly or curvedly. In this case, it should be noted that the engaging pin is in a state of abutting in an oblique direction with respect to the outermost peripheral edge of the long hole. In the third embodiment, the outermost peripheral edge 56d of the long hole 56a has a shape that changes in three stages. However, it may be set in more stages.
Moreover, although the thing of the shape where each long hole part of the elongate members 36 and 56 was mutually connected over substantially full length was shown, for example, the engaging pin when an operation member engages moves each long hole part It may be formed in a shape in which only the part is communicated. In this case, each long hole part is made into the shape extended separately, and the outermost periphery of a long hole is formed intermittently.
In addition, although the long members 36 and 56 are connected so as to be rotatable on the support brackets 32 and 52 side, they may be connected so as to be rotatable on the mounting bracket side. In addition, although the outermost peripheral edges 36d and 56d of the long holes 36a and 56a have a shape that shortens in the direction in which the seat 10 is raised and rotated (in the retracted state), the shape is shortened in the opposite direction. Also good. In this case, the biasing rotation direction of the spring member as the biasing means and the engagement mode with the operation member are also different.
In the second embodiment, the operation member 47 is in contact with the string member 46 corresponding to the flexible member of the present invention. However, for example, the upper rail member itself may be in contact with the string member. Good. Although the material of the string member 46 is not particularly shown, it is not particularly limited as long as it is a flexible material having a strength capable of exhibiting the rotation restricting force shown in the embodiment.

It is the side view which showed the storing state of the vehicle seat of Example 1. FIG. It is the side view which expanded and showed the composition of the rotation storing mechanism when the slide position of a sheet exists in the relational position corresponding to the 2nd rotation position state. It is the side view which expanded and showed the composition of the rotation storing mechanism when the slide position of a sheet exists in the relational position corresponding to the 1st rotation position state. It is sectional drawing which showed the engagement state of the elongate member of FIG. 2, and the operation member. FIG. 4 is a side view showing a stored state of the sheet at the time of FIG. 3. FIG. 3 is a side view showing a stored state of the sheet in FIG. 2. It is the side view which expanded and showed the structure of the rotation storing mechanism when the slide position of the sheet | seat of Example 2 exists in the relationship position corresponding to a 1st rotation position state. It is the side view which expanded and showed the composition of the rotation storing mechanism when the slide position of a sheet exists in the relational position corresponding to the 2nd rotation position state. It is the side view which expanded and showed the structure of the rotation storing mechanism of Example 3. FIG. 5 is a side view showing a stored state of a sheet at each slide position.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Seat 11 Seat cushion 12 Seat back 13 Headrest 14 Lock mechanism 20 Slide mechanism 21 Lower rail member 22 Upper rail member 30 Rotation storing mechanism 31 Mounting bracket (fixed side member)
32 Support bracket (floor side member)
33 Rotating shaft 34 Engagement pin 35 Connecting pin 36 Long member 36a Long hole 36d Outermost peripheral edge 36b First long hole part 36c Second long hole part 37 Spring member (biasing means)
38 Operation member 40 Rotation storage mechanism 41 Mounting bracket 42 Support bracket 43 Rotation shaft 44 Rotation side pin 45 Fixed side pin 46 String member (flexible member)
47 Operation member 50 Rotation storage mechanism 51 Mounting bracket 52 Support bracket 53 Rotating shaft 54 Engagement pin 55 Connection pin 56 Long member 56a Long hole 56d Outermost peripheral edge 56b First long hole part 56c Second long hole part 56e 3rd slot 56f engagement surface 57 spring member (biasing means)
58 Operation members F Floor Fs Floor surface S Striker

Claims (4)

A seat cushion constituting a seat and a seat back are connected so as to be foldable, and the seat is mounted in a front-rear direction of the vehicle with respect to the floor side by a slide mechanism provided between the seat cushion and the vehicle floor side. The slide mechanism is attached to the floor via a pivot storage mechanism that allows the seat to pivot in the front-rear direction of the vehicle at the front, and the folded seat and the slide mechanism Is a vehicle seat that can be in a stowed state in which it is stood up with respect to the floor by a rotating retracting mechanism,
The rotating storage mechanism is configured such that a fixed side member of the slide mechanism is rotatably connected to a floor side member integrally provided on the floor by a rotating shaft, and a folded sheet is attached to the floor. And a rotation restricting means for restricting the rotation of the seat in the vehicle forward direction in the stowed stowed state.
The rotation restricting means includes a rotation restricting member that connects the fixed side member and the floor side member of the slide mechanism, and this connection position relationship is such that the linear distance between the two positions is in the seat retracted direction. The positional relationship gradually increases with the rotation, and the maximum allowable connection length between the two positions by the rotation restricting member is changed according to the slide position, and the maximum allowable connection length by the rotation restricting member is For vehicles, wherein the rotation is restricted and the maximum allowable connection length is shortened and the rotation angle is reduced when the slide position is relatively forward rather than when the slide position is relatively backward Sheet. The vehicle seat according to claim 1,
The rotation restricting member is a long member having a long and rigid shape,
The elongate member is connected to the turn restricting member and the floor side member by being pivotably attached to the floor side member, and the elongate member is configured by an urging means acting on the elongate member. Is energized for rotation in the retracted state,
The long member is formed with a long hole in the longitudinal direction, and the engagement pin provided on the fixed side member is rotated in the long hole by the engagement loosely fitted in the longitudinal direction and the rotation direction. The connection between the regulating member and the fixed side member is configured,
The maximum allowable connection length between both positions by the rotation restricting member is set by the contact of the engagement pin with the outermost peripheral edge of the rotation of the long hole, and the shape of the outermost peripheral edge is in the circumferential direction. The linear length from the connection position of the rotation restricting member and the floor side member is a shape that gradually decreases in the retracted state direction,
An operation member that engages with the long member by sliding the sheet forward and rotates the long member in the opposite direction against the biased rotation is a member that moves integrally with the sheet. Provided,
A vehicle seat characterized in that when the slide position is relatively forward rather than when the slide position is relatively backward, the maximum allowable connection length is shortened and the rotation angle is reduced. The vehicle seat according to claim 2,
The shape of the outermost periphery of the said long hole is made into the multistage shape in the circumferential direction, The vehicle seat characterized by the above-mentioned. The vehicle seat according to claim 1,
The rotation restricting member is a deformable flexible and long flexible member,
One end of the flexible member is attached to the fixed side member to constitute a connection between the rotation restricting member and the fixed side member, and the other end is attached to the floor side member. The connection with the side member is configured,
The maximum allowable connection length between the two positions by the rotation restricting member is set by a linear length between the two positions of the long member,
An operation member that abuts the flexible member by sliding the sheet forward and bends the flexible member to shorten the linear length is provided on the member that moves integrally with the sheet,
A vehicle seat characterized in that when the slide position is relatively forward rather than when the slide position is relatively backward, the maximum allowable connection length is shortened and the rotation angle is reduced.

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