JP6007218B2 - Sheet - Google Patents

Description

  The present invention relates to a seat, and more particularly to a seat that can be stored in a storage position formed on a floor by rotating a link member connected to a seat cushion.

  Vehicle seats that can be stored in the storage position formed on the vehicle body floor are already well known, and among them are vehicle seats that correspond to the rear seats of the vehicle and are stored in the storage space at the rear and lower stages of the seat. There is a sheet having a possible link structure (see, for example, Patent Document 1).

  As a mechanism for storing a vehicle seat, a link member that connects a seat cushion of a vehicle seat and a vehicle body floor and rotates with respect to the vehicle body floor is known. The seat member including the seat cushion moves toward the storage position by the rotation of the link member. Patent Document 1 discloses a configuration in which a seat is stored in a storage position by rotation of various link members with respect to a vehicle body floor and rotation of a seat cushion with respect to various link members.

Japanese Patent Laid-Open No. 11-48840

  In the seat described in Patent Document 1, since the storage space is provided below the vehicle body floor, foreign matter dropped from a person's hand or foreign matter dropped from a loaded luggage may enter the storage space. . And the foreign material which entered this storage space may be pinched | interposed into the part connected so that rotation was possible between a link member and a seat cushion.

As described above, when a foreign object enters the portion that is rotatably connected between the link member and the seat cushion, smooth rotation of the link member is hindered, and further, a high-strength foreign object is sandwiched. In this case, a large load is locally applied to the link member when the link member is rotated, which may cause damage to the link member.
In addition, since the mutual positional relationship between the link member and the seat cushion around the connecting portion is changed by the operation of the link member, it is difficult to eliminate the entry of foreign matters in a series of operation ranges.

Furthermore, in the seat storage state, the space between the floor surface and the seat cushion is small, the space between the seat cushion and the link member on the floor surface is limited, and it is difficult to provide a member for protecting the connecting portion. there were. In particular, when such a member is forcibly provided, such a member may be sandwiched between the floor surface and the seat cushion when the seat is deformed from the seat use state to the seat storage state. As a result, when the seat cushion is lifted, the luggage loading space on the folded seat may be reduced.
Furthermore, from the viewpoint of resource saving and cost, it is not desired to provide a new member separately, and it has been desired to reduce the number of parts.

Then, this invention is made | formed in view of said problem, The objective is to provide the sheet | seat which can suppress the penetration | invasion of the foreign material to a connection part, and can operate a link member smoothly. .
Another object of the present invention is to suitably suppress entry of foreign matter into the connecting portion in a series of states in which the gap between the link member and the seat cushion is changed by the operation of the link member.
Another object of the present invention is to make it easier to avoid the foreign matter intrusion suppression portion being sandwiched between the floor surface and the seat cushion when the seat is in the stored state.
Another object of the present invention is to make it possible to secure a luggage loading space on a seat in a stored state.
Another object of the present invention is to realize resource saving by reducing the number of parts while suppressing the entry of foreign matter into the connecting portion.
Another object of the present invention is to prevent foreign matter from entering the connecting portion from below and from the side of the connecting portion even during a series of operations of the link member.

According to the seat of the present invention, the subject is a seat cushion that is a seating portion, a seat back that is attached to the seat cushion and forms a backrest, and is rotatably connected between the seat cushion and the floor. Two or more link members that move the entire seat downward, the seat being fixed to at least one of the link member or the seat cushion, and a seat outer portion of a connecting portion between the link member and the seat cushion This is solved by providing a foreign matter intrusion suppression portion that extends in the seat width direction and is formed so as to cover at least the connecting portion between the two or more link members and the seat cushion .

  As described above, the seat includes the foreign matter intrusion suppressing portion formed so as to cover the seat outer side of the connecting portion between the link member and the seat cushion, so that the intrusion of the foreign matter into the connecting portion can be suppressed. It is possible to provide a seat that can be operated smoothly.

Further, it is preferable that the foreign matter intrusion suppressing portion is connected to the seat cushion and the link member in the vicinity of the connecting portion.
As described above, the foreign matter intrusion suppressing portion is connected to the seat cushion and the link member in the vicinity of the connecting portion, so that there is no gap between them, and foreign matter can be prevented from entering.

Further, it is preferable that the foreign matter intrusion suppressing portion is flexible and deforms following the operation of the link member.
As described above, the foreign matter intrusion suppression unit has flexibility, and is deformed following the operation of the link member, so that in a series of states in which the gap between the link member and the seat cushion is changed by the operation of the link member, Intrusion of foreign matter into the connecting portion can be suitably suppressed.

Further, the foreign matter intrusion suppression unit is inclined to follow the link member between a seating state of the sheet in which the link member is folded and a use state of the sheet in which the link member is up. The spread of the foreign matter intrusion suppressing portion in the vertical direction is preferably smaller when the sheet is in the stored state than when the sheet is in use.
In this way, the foreign matter intrusion suppression unit tilts following the link member in the storage state of the sheet and the usage state of the sheet, and the vertical spread of the foreign matter intrusion suppression unit is in the storage state of the sheet. By making it smaller than when the seat is in use, it is easy to avoid the foreign matter intrusion suppressing portion from being sandwiched between the floor surface and the seat cushion when the seat is stored. Further, since the foreign matter intrusion suppressing portion can be prevented from being sandwiched between them, the seat cushion can be prevented from being lifted, and a luggage load space on the seat in the stored state can be secured.

The foreign matter intrusion suppression portion has one end fixed in the vicinity of the connecting portion in the seat cushion, and is connected to the first member that covers the side of the connecting portion and the other end of the first member. And a second member that has the other end fixed in the vicinity of the connecting portion of the link member and covers the lower portion of the connecting portion.
As described above, the foreign matter intrusion suppression unit includes the first member that covers the side of the connecting portion and the second member that covers the lower portion of the connecting portion, and the second member is in accordance with the operation of the link member. By rotating around the other end, it is possible to prevent foreign matter from entering the connecting portion from below and from the side of the connecting portion even during a series of operations of the link member.

Further, the first member and the second member are, in a sheet use state, a side of the link member at the other end of the first member, and a side of the second member spaced from the link member, respectively. Are preferably connected in a state of facing each other.
Thus, the first member and the second member are connected in a state where the sheet is in use, with the link member side at the other end of the first member facing the side away from the link member at the one end of the second member. As a result, the posture of the second member fixed to the link member changes according to the operation of the link member and follows.

Furthermore, a cover member that covers the link member may be provided, and the foreign matter intrusion suppression portion may be formed integrally with the cover member.
As described above, the foreign matter intrusion suppression unit is formed integrally with the cover member, so that the number of parts can be reduced.

Further, the foreign matter intrusion suppressing portion is made of a synthetic resin and includes a thin portion formed thinner than both end portions, and the thin portion may be bent according to the operation of the sheet. .
As described above, the foreign matter intrusion suppression portion is formed by integrally forming the first member and the second member made of a resin material, and by providing the thin portion, the thin portion that has low rigidity can be used. It will be flexible and will flex according to the movement of the link, effectively following the movement of the link, and even during a series of movements of the link member, foreign matter will enter the connecting part from below and from the side of the connecting part. It is possible to prevent intrusion.

According to the sheet according to the present invention, it is possible to provide a sheet that can suppress the entry of foreign matter into the connecting portion and can smoothly operate the link member.
According to the seat according to the present invention, it is possible to suitably suppress entry of foreign matter into the connecting portion in a series of states in which the gap between the link member and the seat cushion is changed by the operation of the link member.
According to the seat according to the present invention, it is easy to avoid that the foreign matter intrusion suppressing portion is sandwiched between the floor surface and the seat cushion when the seat is stored. In addition, it is possible to secure a luggage loading space on the seat in the stored state .
According to the sheet according to the present invention, it is possible to prevent foreign matter from entering the connecting portion from below and from the side of the connecting portion even during a series of operations of the link member.
According to the seat according to the present invention, the posture of the second member fixed to the link member changes according to the operation of the link member and follows.
According to the seat according to the present invention, the number of components can be reduced by being formed integrally with the cover member.
According to the seat according to the present invention, it is possible to suitably prevent entry of foreign matters in a series of states in which the gap between the link member and the seat cushion is changed by the operation of the link member.

1 is an external view of a sheet according to an embodiment of the present invention. It is a figure which shows the sheet | seat use condition of the sheet | seat which concerns on this embodiment. It is a figure which shows a mode that the sheet | seat which concerns on this embodiment is accommodated. It is a figure which shows the sheet | seat accommodation state of the sheet | seat which concerns on this embodiment. It is a side view of a sheet storage mechanism. It is a rear view of a sheet storage mechanism and a foreign matter intrusion suppression unit. It is a back perspective view which shows the connection part of a seat cushion frame and a link member. It is a figure which shows the foreign material penetration | invasion suppression part of the back side of the VIIIA part of FIG. 2 in a sheet | seat use condition, and is a VIIIA-VIIIA end surface arrow view of FIG. FIG. 5 is an end view showing a foreign matter intrusion suppressing portion on the rear side of the VIIIB portion of FIG. 4 in a sheet storage state. FIG. 3 is an end view showing a foreign matter intrusion suppressing portion on the front side of the IXA portion of FIG. 2 in a sheet use state. FIG. 5 is an end view showing a foreign matter intrusion suppressing portion on the front side of the IXB portion in FIG. 4 in a sheet storage state. It is a typical end view which shows the attachment state of the foreign material penetration | invasion suppression part in case the resin cover is attached around the outer side link. FIG. 10 is a schematic end view showing another attachment state of the foreign matter intrusion suppressing portion when a resin cover is attached around the outer link. It is an end view which shows the foreign material penetration | invasion suppression part which concerns on the 1st modification in a sheet | seat use state. It is an end view which shows the foreign material penetration | invasion suppression part which concerns on the 1st modification in a sheet | seat accommodation state. It is an end view which shows the foreign material penetration | invasion suppression part which concerns on the 2nd modification in a sheet | seat use state. It is an end view which shows the foreign material penetration | invasion suppression part which concerns on the 2nd modification in a sheet | seat accommodation state. It is an end view which shows the foreign material penetration | invasion suppression part which concerns on the 3rd modification in a sheet | seat use state. It is an end view which shows the foreign material penetration | invasion suppression part which concerns on the 3rd modification in a sheet | seat accommodation state. (A) is a side view which shows the foreign material penetration | invasion suppression part which concerns on the 4th modification in a sheet | seat use state, (B) is a side view which shows the foreign material penetration | invasion suppression part which concerns on the 4th modification in a sheet | seat accommodation state.

<< Schematic Configuration of Vehicle Seat According to One Embodiment of the Present Invention >>
Hereinafter, a seat according to an embodiment of the present invention (hereinafter, this embodiment) will be described with reference to the drawings, taking a seat used for a vehicle as an example.
In the following description, the front-rear direction means the front-rear direction (full length direction) of the vehicle, and corresponds to the front-rear direction of the vehicle seat. The width direction means the left-right direction (horizontal width direction) of the vehicle and corresponds to the width direction of the vehicle seat.
Further, the positions, postures, and the like of the respective members described below are the positions, postures, and the like when the vehicle seat is in a use state, that is, a seated state, unless otherwise specified.

The seat S according to the present embodiment includes foreign matter intrusion suppression units 5 and 50 described later, and constitutes a part of the rear seat of the vehicle.
As shown in FIG. 1, each seat S includes a seating portion S1, which includes a seat cushion 1 on which an occupant is seated, a seatback 2 that supports the occupant from the back side, and a headrest 3 that supports the occupant's head. It is provided on the vehicle body floor T shown in FIG. The seat cushion 1 includes a urethane cushion material 1f (see FIG. 8A) and a skin material 1e that covers the cushion material 1f and is made of a chemical fiber material, leather, synthetic leather, or the like.

  Here, as shown in FIG. 2 and the like, the vehicle body floor T is composed of a floor surface Ta on the front side of the seat S and a floor surface Tb on the lower side of the floor surface Ta and on the rear side of the seat S. Has been. Behind the seat S, a concave storage space T1 including a floor surface Tb is provided. The interior of the storage space T1 corresponds to a storage position, and the sheet S is configured to be stored in the storage space T1.

  The storage operation of the seat S will be outlined. When the seat S is in the state before storage, that is, in the seatable state shown in FIG. 2, when the occupant pulls the operation strap ST, the seat back 2 tilts forward and the seat portion S1 comes to be folded. Thereafter, the folded seat S1 moves in the direction of sinking backward as shown in FIG. Finally, as shown in FIG. 4, the entire sheet S is stored in the storage space T1.

<< About the structure of the sheet storage mechanism >>
The seat S includes a seat storage mechanism 4 below the seat portion S1 in order to realize the storage operation. The configuration of the sheet storage mechanism 4 will be described in detail with reference to FIG.
The seat storage mechanism 4 is a mechanism for moving the seat S1 toward the storage space T1, and includes a foot link 10 and three link members 20 shown in FIG. 2 as main components.
More specifically, the sheet storage mechanism 4 includes an inner link 21, an outer link 22, and a guide link 23 as the three link members 20.

The foot link 10 is made of a plate-shaped steel material, is disposed between the vehicle body floor T and the seat cushion 1, supports a seating portion S 1 including the seat cushion 1, and is connected to the seat cushion 1 in a rotatable state. ing.
More specifically, a fixing bracket 1b for fixing the foot link rotating shaft 10c is attached to the front end portion of the seat cushion 1 (strictly speaking, the seat cushion frame 1a) by welding. An upper end portion of the foot link 10 is supported on the foot link rotating shaft 10c fixed to the fixed bracket 1b. Thereby, the foot link 10 can go back and forth between the standing position (the position of the foot link 10 illustrated in FIG. 2) and the folding position (the position of the foot link 10 illustrated in FIG. 4).

  The lower end portion of the foot link 10 engages with a striker T <b> 2 attached on the floor surface Ta of the vehicle body floor T. Since the foot link 10 is engaged with the striker T2, the seat portion S1 is locked in a state where it is positioned at the seatable position. On the contrary, when the engagement state between the foot link 10 and the striker T2 is released, the entire seat S including the seating portion S1 becomes movable and can move toward the storage space T1. Further, an insertion hole 10h (see FIG. 9A) into which a later-described clip 5f is inserted is formed in the front-rear direction on the upper front side of the foot link 10 when the seat is used.

  The link member 20 is a long member, and one end portion (upper end portion) in the extending direction thereof forms the seat cushion 1, more specifically, the seat cushion frame 1a illustrated in FIG. It is linked to. Further, the other end portion (lower end portion) of the link member 20 in the extending direction is pivotally supported with respect to the vehicle body floor T.

  The inner link 21 supports the seat portion S1 when the seat S is in use, and moves the seat portion S1 into the storage space T1 when the seat S is stored. When storing the seat S, the outer link 22 moves the seat S1 into the storage space T1 in cooperation with the inner link 21.

  The outer link 22 is formed by bending a cylindrical metal pipe into a substantially L shape, and the long portion 22 g is provided along the inner link 21. On the other hand, the short portion 22 f of the L-shaped outer link 22 extends toward the inner link 21. An insertion hole 22h (see FIG. 8A) into which a later-described clip 5f is inserted is formed in the front-rear direction on the rear surface of the upper portion of the outer link 22 in the seat usage state.

  The guide link 23 has a function of guiding the seat cushion 1 so that when the seat S is stored, the seat cushion 1 moves to the storage space T1 along a predetermined track. The guide link 23 is made of an angle-type steel plate and is provided along the long portions 22 g of the inner link 21 and the outer link 22.

The inner link 21, the outer link 22, and the guide link 23 are all supported so as to be rotatable with respect to the vehicle body floor T.
More specifically, the mounting bracket T3 is attached to the vehicle body floor T (strictly speaking, the front side wall surface of the storage space T1). The inner link 21, the outer link 22 and the guide link 23 are rotatably supported via the shaft fixing tools 26a and 26b and the rotating shafts 21a, 22a and 23a shown in FIG. 6 welded onto the mounting bracket T3. Has been.

  Each of the inner link 21, the outer link 22, and the guide link 23 is connected to the seat cushion 1 (strictly speaking, the seat cushion frame 1a) so as to be rotatable. More specifically, as shown in FIGS. 6 and 7, a fixing bracket 1 c for fixing the connecting shaft 21 b and a fixing bracket for fixing the connecting shafts 22 b and 23 b to the rear end portion of the seat cushion 1. 1d is attached, and a fixing bracket 1b (see FIG. 5) for fixing the foot link pivot shaft 10c is attached to the front end portion of the seat cushion 1.

  As described above, each of the inner link 21, the outer link 22, and the guide link 23 is rotated relative to the seat cushion 1 by the upper ends of the inner link 21, the outer link 22, and the guide link 23 being supported by the connecting shafts 21b, 22b, and 23b. Is possible. In other words, the seat cushion 1 is rotatable relative to the inner link 21, the outer link 22 and the guide link 23.

  When the link member 20 configured in this manner is rotated so as to tilt backward in a state in which the engagement state between the foot link 10 and the striker T2 is released, the seating portion S1 moves toward the storage space T1. To come. That is, the link member 20 rotates with respect to the vehicle body floor T in order to move the seat portion S1 between the seatable position and the storage position.

  Then, when the link member 20 tilts backward until it reaches a predetermined position (specifically, the position of the link member 20 illustrated in FIG. 5), the seat portion S1 and the foot link 10 in the folded state are linked. It will be accommodated in the storage space T1 together with the member 20.

<< About foreign matter intrusion suppression part >>
(For foreign matter intrusion suppression unit 5)
As shown in FIGS. 8A and 9A, foreign matter intrusion suppressing portions 5 and 50 are provided on the front side and the rear side of the seat cushion 1.
Here, if it is set as the connection part 30 of the foot link 10 and the link member 20, and the seat cushion frame 1a, the foreign material penetration | invasion suppression parts 5 and 50 have a function which suppresses the foreign material penetration | invasion of the connection part 30. FIG.

Specifically, the connecting portion 30 includes an inner link connecting portion 31 including a connecting shaft 23b between the inner link 21 and the fixed bracket 1c, an outer link connecting portion 32 including a connecting shaft 22b between the outer link 22 and the fixed bracket 1d, The guide link connecting portion 33 including the connecting shaft 23b between the guide link 23 and the fixed bracket 1d, and the front link connecting portion 34 including the foot link rotating shaft 10c between the foot link 10 and the fixed bracket 1b are collectively referred to. .
Further, in the following, the foreign object intrusion suppressing portion 5 that covers the outer link connecting portion 32 including the connecting shaft 22b of the outer link 22 and the fixing bracket 1d as a representative of the connecting portion 30 will be described with reference to FIGS. 7, 8A, and 8B. The description will be given with reference.

  Here, FIG. 7 is a rear perspective view showing the connecting portion 30 between the seat cushion frame 1a and the link member 20, and FIG. 8A shows the foreign matter intrusion suppressing portion 5 on the rear side of the VIIIA portion of FIG. 6 is an end view taken along the line VIIIA-VIIIA in FIG. 6, and FIG. 8B is an end view showing the foreign matter intrusion suppressing part 5 on the rear side of the VIIIB part in FIG.

  As shown in FIGS. 6, 8 </ b> A, and 8 </ b> B, the foreign matter intrusion suppressing unit 5 extends in the seat width direction so as to cover the inner link connecting portion 31, the outer link connecting portion 32, and the guide link connecting portion 33. Yes. Specifically, the foreign substance intrusion suppression unit 5 includes a first member 5a that covers and covers the inner link connecting part 31, the outer link connecting part 32, and the guide link connecting part 33, and the inner link connecting part 31, It is comprised from the 2nd member 5b located in the downward direction of the outer side link connection part 32 and the guide link connection part 33. As shown in FIG. The first member 5a and the second member 5b are integrally formed by a skin material 5e made of the same fiber material as the skin material 1e.

The first member 5a includes a part of the outer skin material 5e sewn in the seat width direction and fixed at the upper end in the vicinity of the outer link connecting portion 32 on the rear side of the outer skin material 1e of the seat cushion 1, and the outer skin material 5e. And a resin plate 5c that holds the shape of the first member 5a.
The second member 5b is connected to the first member 5a by the outer skin material 5e, and from the remaining portion of the outer skin material 5e and the resin plate 5d that is contained in the outer skin material 5e and holds the shape of the second member 5b. Composed. The outer skin material 5e extending from the second member 5b to the outer link 22 side has an insertion hole 5h, and is disposed along the side surface of the outer link 22, and the clip 5f passed through the insertion hole 5h. It is fixed by. In addition, you may make it fix the 2nd member 5b with an adhesive tape, a rubber string, an adhesive agent etc. irrespective of the clip 5f.

Specifically, the resin plate 5c of the first member 5a and the resin plate 5d of the second member 5b are arranged so as to form a V-shaped cross section when the sheet is used, and the lower ends of both are separated from each other. The outer covering material 5e is covered. In other words, in the use state of the seat, the outer link 22 side at the lower end of the first member 5a and the side away from the outer link 22 at the lower end of the second member 5b are connected to face each other.
The foreign matter intrusion suppressing portion 5 is a portion that does not have the resin plates 5c and 5d and is only the outer skin material 5e, that is, the flexible portion 5i, the resin plate 5c, and the resin plate that are closer to the skin material 1e than the resin plate 5c. The flexible portion 5j between 5d and the flexible portion 5k closer to the outer link 22 than the resin plate 5d are configured to be deformable to be bent, in other words, to be rotatable.

In the foreign matter intrusion suppression unit 5 configured in this way, when the outer link 22 is folded downward as shown in FIG. 3 in the operation of the outer link 22 from the sheet use state to the sheet storage state, the outer link 22 is folded. The second member 5b fixed to the outer link 22 by the clip 5f is pulled to the front side of the seat by the outer link 22.
Further, the first member 5a integrally connected to the second member 5b by the outer skin material 5e is pulled to the front side of the seat by the second member 5b, and as shown in FIG. Will be inclined to.

  Conversely, when the outer link 22 is raised upward when the sheet storage state shown in FIGS. 4 and 8B is shifted to the sheet use state shown in FIGS. 2 and 8A, the outer link 22 in the second member 5b. The portion fixed by the clip 5f moves together with the upper end portion of the outer link 22 to the rear side of the seat and tilts in a substantially vertical direction. At this time, the foreign matter intrusion suppression unit 5 is bent at the flexible portions 5i, 5j, and 5k while the outer link 22 is raised upward.

Even if the second member 5b operates as described above, the foreign matter intrusion suppressing portion 5 is bent at the flexible portions 5i, 5j, 5k having only the outer skin material 5e without the resin plates 5c, 5d. It is suppressed that force is added to the part sewn between, and the probability of coming off from the skin material 1e is reduced.
Furthermore, the foreign matter intrusion suppression unit 5 follows the operation of the outer link 22 to change the opening width of the inner link connecting unit 31, the outer link connecting unit 32, and the guide link in a state within the operating range of the outer link 22. It can suppress that a foreign material is pinched | interposed into the part 33. FIG.

  Further, as described above, since the inclination of the first member 5a changes according to the operation of the outer link 22, the height H2 in the sheet storage state of the foreign matter intrusion suppression unit 5 shown in FIG. It becomes smaller than the spread H1 in the height direction in the sheet use state shown in 8A.

  Thus, the foreign material intrusion suppression unit 5 is located between the floor surface Tb and the seat cushion 1 because the vertical expansion H2 of the foreign material intrusion suppression unit 5 in the seat storage state is smaller than the expansion H1 in the seat use state. It becomes easy to avoid being pinched.

  In addition, since the foreign matter intrusion suppression unit 5 can be prevented from being sandwiched between them, the seat cushion 1 can be prevented from being lifted by contacting the foreign matter intrusion suppression unit 5, and the luggage loading space on the seat S in the stored state can be prevented. Can be secured. Furthermore, interference with the lower floor surface Tb and other members on the floor surface Tb can be suppressed.

In the above description, the foreign substance intrusion suppression unit 5 has been described as being fixed to the outer link 22 by the clip 5f. However, as long as the foreign object intrusion suppression unit 5 is fixed to at least one of the inner link 21 and the guide link 23. Good.
Moreover, although the foreign material penetration | invasion suppression part 5 extended in the sheet | seat width direction and demonstrated as what covers the inner side link connection part 31, the outer side link connection part 32, and the guide link connection part 33, cost reduction and interference with a peripheral member are demonstrated. For suppression, only a part of these may be covered.

(For foreign matter intrusion suppression unit 50)
By having the same configuration of the foreign matter intrusion suppression unit 50 disposed on the front side of the sheet S with respect to the foreign matter intrusion suppression unit 5 disposed on the rear side of the above-described sheet S, substantially the same functions and operations are provided. You can
Next, the foreign matter intrusion suppression unit 50 that is disposed on the front side of the seat S and covers the front side link connecting portion 34 between the foot link 10 and the fixed bracket 1b will be described with reference to FIGS. 9A and 9B.
Here, FIG. 9A is an end view showing the foreign matter intrusion suppressing unit 50 on the front side of the IXA portion of FIG. 2 in the sheet use state, and FIG. 9B is a foreign matter intrusion suppressing portion 50 on the front side of the IXB portion of FIG. FIG.

  As shown in FIGS. 9A and 9B, the foreign matter intrusion suppression unit 50 includes a first member 50 a located substantially on the side of the front link coupling portion 34 and a second member 50 b located substantially below the front link coupling portion 34. It consists of and. The first member 50a and the second member 50b are integrally formed by an outer skin material 50e made of the same fiber material as the skin material 1e.

The first member 50a includes a part of the outer skin material 50e that is sewn in the seat width direction and fixed at the upper end in the vicinity of the front link connecting portion 34 on the front side of the skin material 1e of the seat cushion 1, and the outer skin material 50e. It is comprised from the resin plate 50c which is included and hold | maintains the shape of the 1st member 50a.
The second member 50b is connected to the first member 50a by the outer skin material 50e, and from the remaining portion of the outer skin material 50e and the resin plate 50d that is contained in the outer skin material 50e and holds the shape of the second member 50b. Composed. The outer skin material 50e extending from the second member 50b has an insertion hole 50h and is fixed by a clip 5f passed through the insertion hole 50h in a state of being disposed along the side surface of the outer link 22. . In addition, you may make it fix with an adhesive tape, a rubber string, an adhesive agent etc. irrespective of the clip 5f.

Specifically, the resin plate 50c of the first member 50a and the resin plate 50d of the second member 50b are disposed so as to form a V-shaped cross section when the sheet is used, and the lower ends of both are separated from each other. It is covered with a skin material 50e. In other words, in the seat use state, the foot link 10 side at the lower end of the first member 50a and the side away from the foot link 10 at the lower end of the second member 50b are connected to face each other.
The foreign matter intrusion suppressing portion 50 is a portion that does not have the resin plates 50c and 50d and is only the outer skin material 50e, that is, the flexible portion 50i, the resin plate 50c, and the resin plate that are closer to the skin material 1e than the resin plate 50c. The flexible portion 50j between 50d and the flexible portion 50k closer to the outer link 22 than the resin plate 50d are configured to be deformable to be bent, in other words, to be rotatable.

In the foreign matter intrusion suppression unit 50 configured as described above, when the foot link 10 is folded as shown in FIG. 3 in the operation of the foot link 10 from the seat use state to the seat storage state, the folded foot link is folded. The second member 50 b fixed to the clip 10 by the clip 5 f is pulled to the rear side of the seat by the foot link 10 and tilted in a substantially horizontal direction.
Further, the first member 50a integrally connected to the second member 50b by the skin material 50e is pulled to the rear side of the sheet by the second member 50b, and in the sheet storage state shown in FIG. 9B, the flexible portions 50j, 50k. The amount of bending becomes smaller.

  On the other hand, when the outer link 22 is raised upward when the sheet storage state shown in FIGS. 4 and 9B is shifted to the sheet use state shown in FIGS. 2 and 9A, the foot is interlocked with the outer link 22. The link 10 is pulled out. As the foot link 10 is pulled out, the portion of the second member 50b fixed to the foot link 10 by the clip 5f rotates together with the upper end of the foot link 10 and tilts in a substantially vertical direction.

As described above, even if the portion fixed to the foot link 10 is rotated, the flexible portions 50j and 50k are bent (bent), whereby the first member 5a is sewn with the skin material 1e, and It is suppressed that an excessive force is applied to a fixed portion of the two members 50b with the foot link, and the probability of being detached from the skin material 1e is reduced.
Therefore, the foreign matter intrusion suppression unit 50 can suppress the foreign matter from being caught in the front link connecting portion whose opening width changes in a state within the operation range of the foot link 10 by following the operation of the foot link 10. .

(About the attachment of the foreign matter intrusion suppression unit 50)
In the above description, the embodiment in which the foreign matter intrusion suppression unit 5 is directly fixed to the outer link 22 by the clip 5f has been described, but the present invention is not limited to this embodiment.
For example, the foreign matter intrusion suppression unit 5 may be fixed to the outer link 22 covered with the resin covers 7 and 70 described below with reference to FIGS. 10 and 11 through the resin covers 7 and 70. .

  Here, FIG. 10 is a schematic end view showing an attached state of the foreign matter intrusion suppressing portion 5 when the resin cover 7 is attached around the outer link 22. FIG. 11 is a schematic end view showing another attachment state of the foreign matter intrusion suppression unit 5 when the resin cover 70 is attached around the outer link 22.

  The resin cover 7 shown in FIG. 10 is disposed so that the upper end portion 7 a is separated so as to form a slight gap from the side surface of the outer link 22 and extends in parallel with the outer link 22. The foreign matter intrusion suppression portion 5 is a clip that passes through the insertion hole 7h, the insertion hole 5h, and the insertion hole 22h of the outer link 22 in a state where the lower end portion is inserted into the gap between the outer link 22 and the resin cover 7. It is fixed to the resin cover 7 and the outer link 22 by 5f.

  As described above, the foreign matter intrusion suppression unit 5 is disposed between the outer link 22 and the resin cover 7 having the insertion hole 7h, and is fixed by the clip 5f, whereby the outer link 22 covered by the resin cover 7 is provided. Can also be attached. Furthermore, since the end surface of the foreign substance intrusion suppression part 5 is not exposed by being covered with the resin cover 7, the appearance can be improved.

  Further, the resin cover 70 shown in FIG. 11 is disposed so as to extend in parallel with the outer link 22. The foreign matter intrusion suppressing portion 5 is disposed along the rear surface of the resin cover 70 on the rear side in the seat use state, and the insertion hole 70h, the insertion hole 5h, and the outside formed in the rear surface of the resin cover 70 It is fixed to the resin cover 70 and the outer link 22 by a clip 5 f passing through the insertion hole 22 h of the link 22.

  As described above, the foreign matter intrusion suppressing portion 5 is attached to the outer link 22 covered by the resin cover 7 by being disposed on the rear side of the resin cover 7 having the insertion hole 70h and being fixed by the clip 5f. . Furthermore, the attachment work is facilitated by attaching the foreign matter intrusion suppressing portion 5 to the rear surface of the resin cover 7.

  As described above, the outer link 22 is exemplified as the link member 20 applied to the attachment of the foreign matter intrusion suppressing unit 5 through the resin covers 7 and 70. However, the present invention is not limited to this, and the inner link 21, guide It may be applied to the link 23 or may be applied to the foot link 10.

Moreover, in the above, the foreign material penetration | invasion suppression part 5 and 50 demonstrated as what is equipped with resin plate 5c, 5d, 50c, 50d. By providing the resin plates 5c, 5d, 50c, and 50d, the foreign matter intrusion suppressing portions 5 and 50 are suitable in that they have shape retaining properties and appropriate rigidity.
However, the foreign matter intrusion suppression unit according to the present invention is not limited to such a configuration, and may include only the outer skin materials 5e and 50e without including the resin plates 5c, 5d, 50c, and 50d. If the foreign matter intrusion suppressing portion is composed only of the outer skin materials 5e and 50e, the material cost can be reduced, the formation can be easily performed, and the same function can be obtained because it can be bent according to the operation of the link member 20. Will have.

<First Modification>
The foreign matter intrusion suppressing portions 5 and 50 according to the above-described embodiment have mainly been described as being composed of the outer skin materials 5e and 50e made of chemical fibers and the resin plates 5c, 5d, 50c, and 50d. It is not limited to.
A foreign matter intrusion suppression unit 51 according to a first modification example having another configuration will be described with reference to FIGS. 12A and 12B.

  The foreign matter intrusion suppression unit 51 according to the first modification is made of rigid or synthetic resin, and is attached to each side surface of the foot link 10, the inner link 21, the outer link 22, and the guide link 23, for example, by welding, laser bonding, or the like. They are joined together. The foreign matter intrusion suppressing portion 51 has a substantially arc-shaped cross section centered on each of the foot link rotation shaft 10c and the connecting shafts 21b, 22b, and 23b.

Thus, even if it is the foreign material penetration | invasion suppression part 51 fixed only to the side surface of the foot link 10, the inner link 21, the outer link 22, and the guide link 23, it is not fixed to the seat cushion frame 1a. If it is formed with such a length that it sufficiently covers the connecting portion 31, the outer link connecting portion 32, the guide link connecting portion 33, and the front link connecting portion 34, it is possible to suppress the entry of foreign matter into them.
In particular, the outer link 22 illustrated in FIG. 12A has a substantially arc-shaped cross section centered on the connecting shaft 22b that is a rotation shaft in the operation range from the use state to the stored state illustrated in FIG. 12B. Thus, the amount of protrusion from the outer link 22 can be made constant, and interference with other members can be suppressed. The foreign matter intrusion suppression unit 51 that covers the other foot link 10, the inner link 21, and the guide link 23 is configured similarly for each of the foot link rotation shaft 10c and the connection shafts 21b and 23b. Can have an effect.

  In the above description, the foreign object intrusion suppressing unit 51 is described as being joined to the side surfaces of the foot link 10, the inner link 21, the outer link 22, and the guide link 23. It may be joined to the frame 1a side, for example, fixed brackets 1b, 1c, 1d. Even if it is configured in this way, in the operation range of the link member 20 from the sheet use state to the sheet storage state, if it extends sufficiently to the link member 20 side so as to cover the connecting portion 30, The same effect can be achieved.

<Second Modification>
The foreign matter intrusion suppression unit 52 according to the second modification will be described with reference to FIGS. 13A and 13B, taking an example of what is fixed to the outer link 22.
The foreign matter intrusion suppression unit 52 is made of a synthetic resin and includes a part of a stretchable portion 52a formed in a so-called bellows shape in which peaks and valleys are continuous in the thickness direction.
The foreign matter intrusion suppression portion 52 extends wider than the outer link 22 in the seat width direction, and the upper end portion is fixed to the back side (for example, the fixing bracket 1d) of the seat cushion frame 1a, and the lower end portion is the outer link. It is fixed to the upper back side of 22 by laser bonding or the like.
The foreign matter intrusion suppression portion 52 configured in this way has a bellows-like stretchable portion 52 a, an upper end portion is fixed to the back side of the seat cushion frame 1 a, and a lower end portion is fixed to the outer link 22. The expansion / contraction part 52a expands / contracts according to the operation of the outer link 22.

  That is, the foreign matter intrusion suppression unit 52 covers the outer side of the connecting portion 30 within the operation range of the sheet S from the folded state to the raised state of the outer link 22 by the expansion and contraction of the expansion and contraction unit 52a. Become.

  The foreign matter intrusion suppressing portion 52 only needs to be formed to be able to expand and contract according to the operation of the outer link 22. For example, even if it does not have a bellows structure, at least a part of the foreign material intrusion suppressing portion 52 has an elastic body such as rubber. It may be.

<Third Modification>
The foreign matter intrusion suppression unit 53 according to the third modification will be described with reference to FIG. 14A and FIG. 14B, taking as an example one fixed to the outer link 22.
The foreign matter intrusion suppressing portion 53 is made of a synthetic resin and includes a thin portion 53a that is formed thinner than both ends. The thin-walled portion 53a of the foreign matter intrusion suppressing portion 53 has a lower cross-sectional area than other portions, and therefore has low rigidity and is easily bent.
Further, the foreign matter intrusion suppressing portion 53 extends in the seat width direction, the upper end portion is fixed to the back side (for example, the fixing bracket 1d) of the seat cushion frame 1a, and the lower end portion is the upper back side of the outer link 22. It is fixed to.
The foreign matter intrusion suppression portion 53 configured as described above has a thin portion 53a, the upper end portion is fixed to the back side of the seat cushion frame 1a, and the lower end portion is fixed to the outer link 22. In accordance with the operation 22, the thin portion 53 a is bent.

That is, the foreign matter intrusion suppression unit 53 is mainly bent by the thin portion 53a, so that the sheet of the connecting unit 30 is within the operation range of the sheet S from the sheet use state shown in FIG. 14A to the sheet storage state shown in FIG. 14B. It will cover the outside.
14A and 14B, the foreign matter intrusion suppression portion 53 has a thin portion 53a and a thin portion 53a that is thin with respect to the fixed portion, but is not limited to such a shape. . The foreign matter intrusion suppressing portion 53 made of synthetic resin has only the portions corresponding to the flexible portions 5i, 5j, 5k so as to have the same function as the foreign matter intrusion suppressing portion 50 having the flexible portions 5i, 5j, 5k, for example. May be formed thin.

<Fourth Modification>
In the foreign substance intrusion suppression units 5, 50, 51, 52, and 53 according to the above-described embodiment and the modifications thereof, it has been described as extending in the sheet width direction. By being formed in this way, it is possible to suppress the intrusion of foreign matter from the rear and lower sides of the seat. Furthermore, according to the foreign matter intrusion suppressing portion 54 according to a fourth modification described below, the seat side Intrusion of foreign matter from the side can be suppressed by the side cover 54a, and the probability of foreign matter intrusion can be further reduced.

  As shown in FIG. 15, the foreign matter intrusion suppression unit 54 according to the fourth modification includes side covers 54 a that cover the open portions on both ends in the sheet width direction of the foreign matter intrusion suppression unit 5 according to the above embodiment. is there.

  The side cover 54a is made of, for example, the same chemical fiber material as that of the skin material 1e, and is sewn to the skin material 1e, or made of synthetic resin or steel, and is fixed to the seat cushion frame 1a. 5a and the second member 5b are not fixed. Since the foreign matter intrusion suppression unit 54 is configured in this manner, the link member 20 in the transition to the sheet use state shown in FIG. 15A and the sheet storage state shown in FIG. The operation of the member 5a and the second member 5b is not affected. That is, the foreign matter intrusion suppression portion 54 can cover the sides of the first member 5a and the second member 5b before and after the continuous state transition, and the inner link connecting portion 31 and the guide on the both ends in the seat width direction. Intrusion of foreign matter to the side of the link connecting portion 33 can be prevented.

<< Other Embodiments >>
In the above embodiment, the vehicle seat of the present invention has been mainly described. However, the above embodiment is for facilitating the understanding of the present invention, and does not limit the present invention. The present invention can be changed and improved without departing from the gist thereof, and the present invention naturally includes combinations of features of the embodiments and equivalents thereof.

For example, with respect to the link member 20 or the foot link 10 covered with the resin covers 7 and 70, the foreign matter intrusion suppression unit 51 according to the first modification shown in FIGS. 12A and 12B, the second shown in FIGS. 13A and 13B. The foreign matter intrusion suppression unit 52 including the bellows-like stretchable portion 52a according to the modification, and the foreign matter intrusion suppression unit 53 according to the third modification shown in FIGS. 14A and 14B may be integrally formed by injection molding.
Moreover, you may make it join to the resin cover by laser welding instead of the method of joining to the outer side link 22 about the foreign material penetration | invasion suppression part 52 which concerns on a 2nd modification.

  Moreover, although the foreign material penetration | invasion suppression part 5,50,51,52,53,54 which concerns on the said embodiment demonstrated as what was extended in the sheet | seat width direction, the part with the connection part which should suppress foreign material penetration | invasion That is, you may make it form partially so that the inner side link connection part 31, the outer side link connection part 32, the guide link connection part 33, or the front side link connection part 34 may be covered.

  Further, the foreign matter intrusion suppressing portions 5, 51, 52, 53, and 54 according to the above embodiment have been described mainly as suppressing foreign matters that enter the connecting portion between the outer link 22 and the fixed bracket 1d. It is not limited to this. A configuration similar to that of the foreign matter intrusion suppressing portions 5, 51, 52, 53, 54 may cover the connecting portion between the inner link 21 and the fixing bracket 1c and the connecting portion between the guide link 23 and the fixing bracket 1d.

  The seat according to the present invention has been described as a seat for a vehicle, but is not limited to that used for a passenger car, and may be applied to a seat for an industrial forklift, a ship, an airplane, or the like.

  Moreover, in the said embodiment, although demonstrated to the example the sheet | seat which can be accommodated back, it is possible to apply this invention to the sheet | seat which can be accommodated forward. Even in this case, the foreign matter intrusion suppressing portion may be provided so as to cover the connecting portion between the link member and the seat cushion.

H1, H2: Height spread S Seat S1 Seating portion ST Operation strap T Car body floor Ta, Tb Floor surface T1 Storage space T2 Strike T3 Mounting bracket 1 Seat cushion 1a Seat cushion frame 1b, 1c, 1d Fixed bracket 1e Skin material 1f Cushion material 2 Seat back 3 Headrest 4 Seat storage mechanism 5, 50, 51, 52, 53, 54 Foreign matter intrusion suppression portions 5a, 50a First member 5b, 50b Second member 5c, 5d, 50c, 50d Resin plate 5e, 50e Outer material 5f Clips 5h, 50h Insertion holes 5i, 5j, 5k, 50i, 50j, 50k Flexible part 7, 70 Resin cover 7a Upper end part 7h Insertion hole 10 Foot link 10c Foot link rotating shaft 10h Insertion hole 20 link Member 21 Inner link 21a (Inner side Rotating shaft 21b connecting shaft 22 outer link 22a (for outer link) rotating shaft 22b connecting shaft 22f short portion 22g long portion 22h insertion hole 23 guide link 23a (for guide link) rotating shaft 23b connecting shaft 26a , 26b Shaft fixture 30 Connecting portion 31 Inner link connecting portion 32 Outer link connecting portion 33 Guide link connecting portion 34 Front link connecting portion 52a Extendable portion 53a Thin portion 54a Side cover

Claims (8)

A seat cushion that is a seating part;
A seat back attached to the seat cushion and serving as a backrest;
It is rotatably connected between the seat cushion and the floor,
Two or more link members that move the entire sheet downward, and a sheet comprising:
It is fixed to at least one of the link member or the seat cushion,
Foreign matter intrusion suppression that extends in the seat width direction outside the connecting portion between the link member and the seat cushion so as to cover at least the space between the connecting portions between the two or more link members and the seat cushion. A sheet comprising a portion. The seat according to claim 1, wherein the foreign matter intrusion suppression portion is connected to the seat cushion and the link member in the vicinity of the connection portion. The sheet according to claim 2 , wherein the foreign matter intrusion suppression unit has flexibility and deforms following the operation of the link member. The foreign matter intrusion suppression portion is inclined to follow the link member in the sheet storage state in which the link member is folded and in the use state of the sheet in which the link member is raised,
Vertical extent of the foreign substance penetration inhibiting unit, when in the housed state of the sheet, in any one of claims 1 to 3, characterized in that is smaller than when in the state of use of the seat The described sheet. The foreign matter intrusion suppression portion has a first member that is fixed in the vicinity of the connecting portion in the seat cushion and covers a side of the connecting portion;
A second member having one end connected to the other end of the first member and the other end fixed in the vicinity of the connecting portion of the link member, and covering the lower portion of the connecting portion. The sheet according to any one of claims 1 to 4 . In the sheet use state, the first member and the second member face the link member side at the other end of the first member and the side away from the link member at the one end of the second member. The sheet according to claim 5 , wherein the sheets are connected in a state. A cover member covering the link member;
The sheet according to any one of claims 1 to 6 , wherein the foreign matter intrusion suppressing portion is formed integrally with the cover member. The foreign matter intrusion suppression portion is made of a synthetic resin and includes a thin portion formed in a portion thinner than both end portions,
The sheet according to claim 1, wherein the thin portion bends according to the operation of the sheet.

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