JP2000280801A - Housing attitude holding device for automobile seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a seat to be in a compact housing attitude in a direction of from front to rear and to maintain the housing attitude of the seat with a simple constitution. SOLUTION: This device comprises a turn arm 44 whose lower end part is pivotally supported in a floor panel 2 so as to freely turn forward near a foreleg 13, a locked part 45 mounted on a seat cushion 8, a guide part 46 which is formed in the turn arm 44 to engage the locked part 45 and slides with the locked part 45 each other when the seat cushion 8 and the foreleg 13 turn, a locking part 48 which is formed in the turn arm 44 and capable of locking so as to freely engage and disengage the locked part 45 sliding the guide part 46 when the foreleg 13 turns forward to a prescribed turn position and turns forward upward to a prescribed position above the seat cushion 8 and the floor panel 2, and an energizing means 49 energizing so as to lock the locked part 45 and the locking part 48 each other.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention holds a seat cushion provided on a floor panel of a vehicle body when the seat cushion is turned from a seatable position to a compact vertically long storage position in the front-rear direction. TECHNICAL FIELD The present invention relates to a storage posture holding device for a vehicle seat that can be used.

[0002]

2. Description of the Related Art Conventionally, automobile seats have been disclosed in Japanese Patent Application Laid-Open
There is one disclosed in Japanese Patent No. 67186.

According to the above publication, the seat includes a seat body located above a floor panel of a vehicle body, and support means for supporting the seat body on the floor panel. In addition, the seat body includes a substantially horizontally extending seat cushion and a rear end portion of the seat cushion which projects upward from a rear end side thereof, and a lower end portion of which is pivotally supported by a rear end portion of the seat cushion. And a seat back which is rotatable reciprocally forward and downward.

In the above case, the seat is in a posture in which the seat can be seated, that is, the seat cushion of the seat body is in a posture in which a seated person can be seated, and the seat back is seated on the seat cushion. The posture is such that the backrest can be used.

Further, if the seat back is rotated forward from the above-mentioned seating position, the seat back can be superimposed on the seat cushion. With such superposition, the seat body becomes compact. Become.

In the above construction, the support means may include a front leg extending downward from a lower surface of a front portion of the seat cushion and an upper end portion of the front leg so that the front leg can be rotated back and forth. There has been proposed a device provided with a front upper pivotal support pivotally supported by the seat cushion, and a front lower pivotal support pivotally supporting the lower end of the front leg to the floor panel so that the front leg can be rotated back and forth. I have.

According to the seat having the above-described structure, the front leg is rotated in the front-rear direction about the front lower pivotal support, and the seat cushion and the front leg are relatively rotated about the front upper pivotal support. By moving the seat body in the front-rear direction while keeping the seat cushion in a substantially horizontal position, the seating position on the seat can be changed back and forth to suit the physique and preference of the seated person. ing.

In the above case, since the forward and backward movement of the seat body is performed in accordance with the rotation of the front legs, the range in which the seating position can be changed is increased to some extent in the longitudinal direction. The front leg is formed to have a longer dimension in the longitudinal direction.

In addition, the front leg is pivoted forward about the front lower support, and the seat body is moved forward and upward about the front upper support with the seat back overlapped with the seat cushion. When rotated, the seat body can be in a compact vertically long posture in the front-rear direction,
The sheet is placed in the storage position. In the seat storage position described above, the seat body is made compact, and the seat body is placed in the vertically long position, so that the boarding space and the luggage space of the vehicle compartment are expanded, which is convenient.

[0010]

By the way, as described above, when the size of the front leg is lengthened, if the seat is stored as described above, the following problem may occur.

In other words, when the lower end of the seat body, which is in a vertically elongated position in the seat storage position, is brought into contact with and supported by the floor panel as described in the above-mentioned publication, a long dimension is obtained as described above. The front legs extend long rearward from the lower rear surface of the seat body in the vertically elongated position, which causes a problem that the seat including the front legs cannot be sufficiently compact in the front-rear direction.

Therefore, when the seat is placed in the storage position, the front legs are rotated forward to a predetermined rotation position so as to be in a vertical position, and the seat body is separated upward from the floor panel. It is conceivable that the seat is pivoted forward and upward to a predetermined pivoting position such that the seat is in a vertically long posture, and this is set to the storage posture. In this case, the seat can be made compact in the front-rear direction.

However, in the above case, in order to maintain the storage position, the rotation preventing means for simply preventing the rotation of the front leg with respect to the floor panel, and the relative rotation of the seat cushion and the front leg with respect to each other. Is provided, the number of parts is increased, and the number of parts is increased, so that the configuration for holding the storage posture is complicated.

Further, when trying to hold or release the storage posture, there is a possibility that a plurality of rotation preventing means may be required to prevent the rotation and release operations thereof. The operation for the sheet may be complicated.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and enables a seat to be stored in a compact storage position in the front-rear direction and to hold the sheet in the storage position. It is an object of the present invention to achieve a simple configuration, and to easily perform an operation on a sheet for holding the storage posture and releasing the holding.

[0016]

An apparatus for holding a storage position of an automobile seat according to the present invention for solving the above-mentioned problems is as follows.

According to the first aspect of the present invention, there is provided a seat cushion 8 located above the floor panel 2 and extending substantially horizontally, a front leg 13 extending downward from the lower surface of the front portion of the seat cushion 8, and A front upper pivotal support 15 for pivotally supporting the upper end of the front leg 13 to the seat cushion 8 so as to be rotatable back and forth, and a lower end of the floor panel so that the front leg 13 is rotatable back and forth. In a vehicle seat provided with a front lower pivot support 17 pivoted to 2,

In the vicinity of the front of the front leg 13, the projection protrudes upward from the floor panel 2 side, and the lower end thereof is pivotally supported by the floor panel 2 by a pivotal support member 43 so that the upper part thereof is rotatable in the front-rear direction. The rotating arm 44, the locked portion 45 attached to the seat cushion 8, and the locking arm 45 formed on the rotating arm 44 engage with the locked portion 45 to rotate the seat cushion 8 and the front leg 13. The front leg 13 is pivoted forward about the front lower pivot support 17 to a predetermined pivot position. At the same time, the seat cushion 8 is attached to the front pivotal support 15.
Can be engaged and disengaged with the locked portion 45 that has slid on the guide portion 46 when it is pivoted forward and upward to a predetermined pivot position away from the floor panel 2 with the center as the center. And a biasing means 49 for biasing the locked portion 45 and the locking portion 48 to lock each other.

According to a second aspect of the present invention, in addition to the first aspect of the present invention, in particular, as illustrated in FIGS. Locked part 45
Are released from each other.

The invention of claim 3 is the invention of claim 1 or 2
In addition to the above invention, the locked portion 45 is provided with the guide portion 46.
Is provided with urging means 49 for urging the rotation arm 44 to rotate in any one of the front and rear directions about the pivot support 43 so as to bring the pressure contact into contact.

[0021]

Embodiments of the present invention will be described below with reference to the drawings.

(First Embodiment)

FIGS. 1 to 4 show a first embodiment.

In FIG. 2, reference numeral 1 denotes a vehicle body of an automobile, and an arrow Fr indicates the front of the vehicle body 1 of the automobile.

The vehicle body 1 has a floor panel 2 made of sheet metal extending substantially horizontally, and the interior of the vehicle body 1 above the floor panel 2 is used as a vehicle compartment 3. The vehicle compartment 3 is used for a passenger such as an occupant. A seat 4 is provided. This sheet 4
The seat body 6 located above the floor panel 2
And support means 7 for supporting the seat body 6 on the floor panel 2.

The seat body 6 is connected to the floor panel 2.
, A seat back 9 protruding upward from the rear end side of the seat cushion 8, and a lower end of the seat back 9 being attached to a rear end of the seat cushion 8. Pivot means 1 to pivot
0, the seat back 9 is reciprocally pivotable (A, B) forward and downward about the pivot means 10. Although not shown, the seat back 9 is not shown.
Is provided with a reclining means capable of preventing the rotation of the lens at an arbitrary rotation position.

The seat 4 described above is set in a "seatable position" for a seated person, that is, the seat cushion 8 of the seat body 6 is set in a position in which the seated person can be seated.
The seat back 9 is in a posture in which a seat can be rested while sitting on the seat cushion 8.

The support means 7 includes a pair of left and right sheet metal front legs 13 extending downward from the lower surface of the front portion of the seat cushion 8 and downward from the lower surface of the rear portion of the seat cushion 8. Extending pair of left and right sheet metal rear legs 1
4, before and after the upper ends of the front and rear legs 13 and 14 are pivotally supported by the seat cushion 8 so that the front and rear legs 13 and 14 can be rotated back and forth. A front lower pivot support 17 for pivotally supporting the lower end of the rear panel 14 to the floor panel 2 so as to be freely rotatable; and a locking fixture for releasably engaging the lower end of the rear leg 14 to the floor panel 2. 18 is provided.

The front and rear pivotal supports 15 and 16 are fixed to the seat cushion 8 so as to protrude from the lower surface of the seat cushion 8, respectively.
The front and rear legs 1 are attached to the brackets 21 and 22, respectively.
Pivot shafts 23 and 24 for pivotally supporting the respective upper end portions 3 and 14. On the other hand, the front lower pivot support 17 includes a bracket 26 fixed to the floor panel 2 and a pivot shaft 27 for pivotally supporting the lower end of the front leg 13 to the bracket 26.
And

The locking member 18 is fixed to the floor panel 2 and has a locking portion 29 which also serves as a locking shaft and a pivot shaft.
A notched locked portion 30 which opens downward and is locked to the locking portion 29 so as to be removably engaged with the locking portion 29 by the vertical movement of the lower end of the rear leg 14. A holding unit (not shown) is provided to enable the locked portion 30 to be held in a locked state. Further, in the locked state of the locked portion 30 with respect to the locking portion 29, the rear leg 14 is rotatable back and forth about the locking portion 29, that is, the locking of the locking member 18. The portion 29 is pivotally supported by the floor panel 2 so that the rear leg 14 is rotatable back and forth.

A biasing means 33 which is a spring is externally fitted to the pivot shaft 27 of the front lower pivot support 17, and the biasing means 33 is provided.
Urges the front leg 13 to rotate forward with respect to the floor panel 2 about the pivot shaft 27.

The front lower support 17 against the urging means 33
When the front leg 13 is rotated to a predetermined rearward rotation position about the pivot shaft 27, a rear rotation stopper 34 that abuts a part of the front leg 13 to prevent further rearward rotation.
Thereafter, the rotation stopper 34 is fixed to the floor panel 2. Further, when the front leg 13 is rotated to a predetermined front rotation position around the pivot shaft 27 of the front lower pivot support 17, a part of the front leg 13 is brought into contact with the front leg 13 for further forward rotation. The front rotation stopper 35 is provided to prevent the front lower pivot support 17 from moving.
Of the bracket 26.

Before the seat cushion 8 described above,
A rotation preventing means 38 is provided which can prevent the rotation of at least one of the rear legs 13 and 14 at an arbitrary rotation position.

The lower end of the front leg 13 is connected to the lower end of the rear leg 14 in an interlocking manner. The connecting member 39 is an interlocking link of a metal elastic bar having a circular cross section which is bent in a substantially U-shape in side view of the vehicle body 1. Is provided. The connecting member 39 is elastically bendable. The front end of the connecting member 39 is pivotally supported by the pivot shaft 27 at the lower end of the front leg 13, and the rear end is connected to the lower end of the rear leg 14 by another pivot. It is pivotally supported by a support shaft 40.

In FIG. 2, the seat body 6 is located at the last position in the front-rear movable range of the seat 4 in the “seatable posture” and is supported by the support means 7. In this case, the front leg 13 abuts on the rear rotation stopper 34, and further rearward rotation with respect to the floor panel 2 is prevented. Further, the relative rotation between the seat cushion 8 and the front leg 13 around the pivot shaft 23 of the front upper pivot support 15 is prevented by the blocking operation by the rotation blocking means 38.

When the stopping operation of the rotation preventing means 38 is released from the last portion of the seat body 6 in the "seatable posture" of the seat 4 shown in FIG.
The front movement of the seat body 6 by the front rotation of the front and rear legs 13 and 14 with respect to the floor panel 2 is allowed.

Therefore, the pivot shaft 27 of the front lower pivot bracket 17 is provided.
And the front and rear legs 1 around the locking portion 29 of the locking device 18.
When the seat body 6 is moved forward so that the seat body 6 is positioned at the foremost position in the “seatable posture” of the seat 4, as shown in FIG. Is prevented by the front rotation stopper 35. Further, the relative rotation between the seat cushion 8 and the front leg 13 around the pivot 23 of the front upper pivot 15 is prevented by the inhibition operation by the rotation inhibiting means 38. Thereby, the seat body 6 is supported by the floor panel 2. In a state in which the blocking operation by the rotation blocking means 38 is released, the seat body 6 is moved forward (or rearward) by the forward rotation (or backward rotation) of the front and rear legs 13 and 14 with respect to the floor panel 2. Movement) is permitted, and if the rotation preventing means 38 is stopped during the movement, the seating position for the seat 4 in the "seatable posture" can be arbitrarily selected in the front-rear direction. You.

As shown by a two-dot chain line in FIG. 3, when the seat back 9 is turned forward (A) from the “seatable posture” of the seat 4, the seat back 9 is moved to the upper surface of the seat cushion 8. It can be superimposed on the side.

In FIGS. 1 and 4, when the seat 4 is to be stored when not in use, for example, the seat body 6 is positioned at the forefront as described above.
The locked portion 30 is released from the locking portion 29 of the locking device 18, that is, the rear leg 1 is separated from the floor panel 2.
4, the seat body 6 in a state where the seat back 9 is overlapped with the seat cushion 8 may be rotated about the pivot shaft 23 of the front upper pivot support 15,
As a result, the seat 4 can be set in the “storage posture”.

When the seat 4 is set in the "storage posture", a storage posture holding device 41 for detachably holding the seat body 6 on the floor panel 2 is provided. Hereinafter, the storage posture holding device 41 will be described.

After the seat body 6 is positioned at the frontmost position (FIG. 3), the seat body 6 is moved forward and upward around the pivot shaft 23 of the front upper support 15 so that the seat body 6 is in a vertically long posture. Start rotating (two-dot chain line in FIGS. 1 and 4). From this state, the seat body 6 is further rotated forward and upward about the pivot 23 of the front upper pivotal support 15 to a predetermined rotational position separated upward from the floor panel 2. If this is done (solid lines in FIGS. 1 and 4), the seat 4 is in the “storage posture”
It is said. At this time, the floor panel 2 is provided with a locking means 42 for locking and unlocking the seat cushion 8.

The locking means 42 protrudes upward from the floor panel 2 near the front of the front leg 13 and has a lower end pivotally supported by a pivotal support 43 so that the upper part thereof is rotatable in the front-rear direction. A rotating arm 44 pivotally supported by the floor panel 2 via the bracket 26; and a shaft-shaped latched portion 45 having a circular cross section and attached to the seat cushion 8 so as to protrude outward from a side surface of the seat cushion 8. When the seat cushion 8 and the front leg 13 are rotated around the front upper pivotal support 15 and the front lower pivotal support 17, respectively, It includes the locked portion 45 and a guide portion 46 that slides with each other.

The guide portion 46 is connected to the rotating arm 44.
Is formed in an upper portion (rotating end side) of the rotating arm 44 and penetrates in the width direction of the sheet 4 and extends along the longitudinal direction of the rotating arm 44. The protruding end side is fitted. As described above, when the seat cushion 8 and the front leg 13 rotate, respectively, at least one of the front and rear guide surfaces 46a and 46b before and after facing each other in the elongated hole-shaped guide portion 46; The outer peripheral surface of the locked portion 45 slides,
At this time, the locked portions 45 slide relative to each other only along the longitudinal direction of the guide portions 46.
Are engaged with each other.

The locking means 42 is formed in a notch shape continuously formed rearward from the lower end of the guide portion 46 at a middle portion (rotation end side) of the rotation arm 44 in the longitudinal direction. Are provided.

When the seat 4 is to be brought into the "storage posture" as described above, the guide portion 46 is relatively slid downwardly in this longitudinal direction before the "storage posture". When the locked portion 45 is in the “storage posture”, the locking portion 4 is moved from the lower end of the guide portion 46.
8 so as to be detachably engageable.

Further, the storage attitude holding device 41 is provided with an urging means 49 for elastically urging the rotating arm 44 so that the locked portion 45 and the locking portion 48 are locked to each other. I have. The urging means 49 is constituted by a helical spring wound around the pivotal support 43, and the urging means 49 moves the upper part of the rotating arm 44 forward with the pivotal support 43 as a center. When the locked portion 45 and the guide portion 46 are engaged with each other, the urging means is elastically urged to rotate forward in one of the rear directions (arrow C in FIG. 1). Due to the urging force of 49, the rear guide surface 46b of the guide portion 46 is always in pressure contact with the locked portion 45.

In the above case, when the seat 4 is in the "storage posture", the front leg 13 is moved to the front rotation stopper 3 as described above.
5 prevents further forward rotation, and furthermore, the locked portion 45 and the locking portion 48 are automatically locked to each other by the urging force of the urging means 49, so that the seat body 6 is moved forward and upward. Rotation around the pivotal support 15 is prevented, so that the seat body 6 is prevented from further pivoting forward about the front upper pivotal support 15 and the front lower pivotal support 17. . In the "storage posture" of the seat 4, the center of gravity of the seat body 6 (the center of gravity of the seat cushion 8 and the center of gravity of the seat back 9) is located on the front side of the front lower pivotal support 17, and In addition, the front leg 13 is connected to the front lower support 1.
Urging means 3 for urging forward rotation about 7
3 and 49 prevent the seat body 6 from rotating backward about the front upper pivotal support 15 and the front lower pivotal support 17. In this way, the seat 4 is held in the “storage posture”.

1 and 4, the locked state of the locking means 42 in which the locked portion 45 is locked to the locking portion 48 can be released by inputting an external operating force. The lock release operation means 52 is provided, and the release of the lock releases the holding of the “storage posture”.

The lock release operation means 52 includes one end 53
Is connected to a longitudinally intermediate portion of the rotating arm 44,
The other end portion 54 includes a flexible operation portion 55 that projects rearward from the rotating arm 44 and the other end portion 54 is a grip portion of an operator and is an input portion of an operation force that is directed rearward. ing. By gripping the other end 54 of the operation unit 55 and inputting an operation force and pulling it backward while moving against the urging means 49, the rotation arm 44 is interlocked with this.
Is rotated backward (two-dot chain line in FIG. 1), and the locking of the locking portion 48 and the locked portion 45 is released.

According to the above structure, in particular, in FIGS. 1 and 4, the front leg 13 is rotated forward to a predetermined rotation position around the front lower pivot support 17 and the seat cushion 8 is seated on the seat cushion 8. Is rotated forward and upward around the front pivotal support 15 to a predetermined rotational position separated upward from the floor panel 2, that is, the seat 4 is stored When the posture is set, the locked portion 45 and the locking portion 48 are locked to each other by the urging force of the urging means 49, and therefore, the following effects occur.

That is, the seat cushion 8 is locked to the floor panel 2 by the locked portion 45, the guide portion 46, the locking portion 48, and the urging means 49 of the locking means 42. Is held in the "storage posture". In this case, as described above, since the seat body 6 is located at a position away from the floor panel 2 upward, the front leg 13 is set to a vertical position closer to vertical by the distance from the floor panel 2. be able to.

Therefore, the seat 4 including the front legs 13
Can be made vertically long as a whole, the seat 4 can be made to have a compact "storage posture" in the front-rear direction, and the seat 4 can be made compact in this way, so that the riding space and the luggage space of the passenger compartment 3 can be reduced. Can be spread more.

In the above case, when the front leg 13 and the rotating arm 44 are interlocked with each other to bring the seat 4 into the “storage posture”, the locked portion 45 is locked by the locking portion 48. Is guided by the seat cushion 8
The front leg 13 and the rotating arm 44 are formed by a locked portion 45 protruding from the front arm 13 and a locking portion 48 formed on the rotating arm 44 to be engaged with the locked portion 45. Since the interlocking means for interlocking the seat body with each other is not separately required, the seat body 6 is locked to the floor panel 2,
The configuration for holding the sheet 4 in the “storage posture”, that is, the configuration of the storage posture holding device 41 is simplified.

As described above, the urging means 49 for urging the rotating arm 44 to lock the locked portion 45 and the locking portion 48 with each other is provided. When the front leg 13 and the seat body 6 are turned to the predetermined turning position to bring the seat 4 including these 6 and 13 into the “storage posture”, the locked portion 45 and the locking portion 48 The seat cushion 8 of the seat body 6 is securely and automatically locked to the floor panel 2 so that the seat 4 is held in the "storage posture". You.

Therefore, the holding of the seat 4 in the "storage posture" is more reliably and automatically achieved by the rotation of the front leg 13 and the seat body 6 to the predetermined rotation position. The operation on the seat 4 when the seat 4 is held in the "storage posture" can be easily performed.

The rotating arm 44 is disposed near the front of the front leg 13 and is engaged with the locked portion 45 and the guide portion 46 so that the front leg 13 and the rotating arm 44 can be connected to each other. Are linked to each other.

Therefore, when the front leg 13 is rotated in the front-rear direction, for example, when the seating position on the seat body 6 is changed, or when the seat 4 is set to the "storage posture", the rotation arm 44 is used. Rotates with the front leg 13 in the same direction in the front-rear direction near the front leg 13.

Therefore, the pivot arm 44, which is a part of the components of the locking means 42, is capable of moving the seat 4 in either the "seatable posture" or the "storage posture". It is suppressed that the sheet 4 largely protrudes outward from the seat body 6 and the support means 7, and the seat 4 is kept compact as a whole in any posture.

As described above, the locking of the locking portion 48 and the locked portion 45 is released by the rotation of the rotating arm 44 rearward.

For this reason, the operation for releasing the holding state of the "storage posture" is performed by simply pulling the operating portion 55 connected to the rotating arm 44 backward to pull the rotating arm 44. A single operation of rotating backward is sufficient, that is, the operation on the seat 4 when the holding of the above “storage posture” is to be released can be easily performed.

When the seat 4 is in the "storage posture" as described above, the space behind the seat 4 is usually used as a luggage compartment. In the above case, the luggage in the luggage compartment may collide with the seat 4 from behind, and the external force at the time of the collision may be applied to the pivot arm 44. Since the locking of the locking portion 48 and the locked portion 45 is released by the rotation, the locking is prevented from being inadvertently released by the collision. You.

Accordingly, the holding of the sheet 4 in the "storage posture" is more reliably held.

When the holding of the “storage posture” is released as described above, the seat 4 is moved from the “storage posture”.
Is allowed to rotate backward and downward. Therefore, the above sheet 4
When the is rotated rearward and downward, it can be turned to a “seatable posture”.

At the end of the rotation of the seat 4 rearward and downward, the lower end of the rear leg 14 is positioned with respect to the front leg 13 by the connecting member 39, so that the engagement of the locking member 18 is prevented. The stopping portion 30 is securely engaged with the locking portion 29 so as to be freely disengageable, and the seat 4 is easily returned to the “seatable posture”.

As described above, the rotating arm 44 is moved forward or backward (C) in any one of the front and rear directions around the pivotal support 43 so that the guide portion 46 is pressed against the locked portion 45. ) Is provided with the urging means 49 for urging the rotation.

Therefore, the rotation arm 44 and the locked portion 45 have a simple structure by using the urging means 49 for locking the locked portion 45 and the locking portion 48 to each other. Thus, they are always brought into pressure contact with each other to prevent rattling between them.

Although the above description is based on the illustrated example, the urging means 49 may be the own weight of the rotating arm 44.
A weight attached to the rotating arm 44 may be used.

The following figures show the second to fourth embodiments. Each of these embodiments has many points in common with the first embodiment in configuration and operation. Therefore, these common components are denoted by the same reference numerals in the drawings, and redundant description thereof will be omitted, and different points will be mainly described.

(Second Embodiment)

FIG. 5 shows a second embodiment.

According to this, the locking means 42 is a notch-shaped locking part 48 which is formed at the middle part in the longitudinal direction of the rotating arm 44 and is formed continuously from the lower end of the guide part 46 to the front. It has. Further, the urging means 49 elastically urges the upper part of the turning arm 44 to turn rearward around the pivotal support 43 (arrow D in FIG. 5), and by this urging force, When the locked portion 45 and the guide portion 46 are engaged with each other, the front guide surface 4
6a is in pressure contact with the locked portion 45.

The locking of the locked portion 45 with the locking portion 48 is released by the forward rotation of the rotation arm 44. The operation section 55 is made of a rigid rod material such as metal or resin.

When the operating portion 55 is pushed forward, the rotating arm 44 is rotated forward (indicated by a two-dot chain line in FIG. 5) in conjunction therewith, and the locking portion 48 and the locked portion 45 are mutually moved. Can be released

(Third Embodiment)

FIG. 6 shows a third embodiment.

This embodiment is different from the first embodiment in that when the locked portion 45 and the guide portion 46 are engaged with each other,
Due to the urging force of the urging means 49, the guide portion 46 is always
The rear guide surface 46b is pressed against the locked portion 45,
The front guide surface 46a of the guide portion 46 is
5 is created by paying attention to the fact that it slightly separates.

Then, the portion of the rotating arm 44 which constitutes the front guide surface 46a described above is deleted,
That is, the rotating arm 44 is formed of a simple arm material having no long hole. Therefore, the configuration for holding the sheet 4 in the "storage posture" is simplified accordingly.

(Fourth Embodiment)

FIG. 7 shows a fourth embodiment.

This embodiment is different from the second embodiment in that when the locked portion 45 and the guide portion 46 are engaged,
Due to the urging force of the urging means 49, the guide portion 46 is always
The front guide surface 46a is pressed against the locked portion 45,
The guide surface 46b on the rear side of the guide portion 46 is
5 was created in view of the fact that it was slightly far away.

Then, the portion of the turning arm 44 constituting the rear guide surface 46b is deleted,
That is, the rotating arm 44 is formed of a simple arm material having no long hole. Therefore, the configuration for holding the sheet 4 in the "storage posture" is simplified accordingly.

[0082]

The effects of the present invention are as follows.

According to the first aspect of the present invention, there is provided a seat cushion positioned above a floor panel and extending substantially horizontally, a front leg extending downward from a lower surface of a front portion of the seat cushion, and a front leg extending forward and backward. A front upper pivotal support for pivotally supporting the upper end of the front cushion to the seat cushion so as to be rotatable; and a front lower pivotal support for pivotally supporting the lower end of the front panel to the floor panel so that the front leg is rotatable back and forth. In a vehicle seat equipped with a tool,

A pivot arm protruding upward from the floor panel near the front of the front leg and having a lower end pivotally supported on the floor panel by a pivotal support so that an upper part thereof is rotatable in the front-rear direction. A locked portion attached to the seat cushion; and a locked portion formed on the rotating arm for engaging with the locked portion, and sliding with the locked portion when the seat cushion and the front leg rotate. A moving guide portion, formed on the rotating arm, for rotating the front leg forward to a predetermined rotation position around the front lower pivotal support, and moving the seat cushion around the front upper pivotal support. A locking portion for enabling the locked portion, which has slid on the guide portion, to be removably lockable when rotated forward and upward to a predetermined rotation position separated upward from the floor panel. And the locked portion Yes and a biasing means biases engaged the locking portion from each other, resulting the following effects.

That is, when the front leg and the seat cushion are each rotated to a predetermined rotation position to bring the seat into the “storage posture”, the locked portion of the locking means, the guide portion, By the locking part and the urging means,
The seat cushion is locked to the floor panel, so that the seat is held in the "storage posture". In this case, as described above, since the seat cushion is positioned upward away from the floor panel, the front legs can be made to be more vertically oriented vertically by the distance away from the floor panel.

Therefore, since the seat including the front legs can be formed into a vertically long shape as a whole, the seat can be made to have a compact "storage posture" in the front-rear direction, and thus the seat can be made compact. Ride space and luggage space can be expanded.

In the above case, when the front leg and the rotating arm are linked with each other to bring the sheet into the “storage posture”, the locked portion is guided to be locked to the locking portion. A locked portion protruding from the seat cushion;
Since the engagement with the locked portion is achieved by the locking portion formed on the rotating arm, the interlocking means for interlocking the front leg and the rotating arm with each other is not required separately. , By locking the seat body to the floor panel,
The configuration for holding the sheet in the “storage posture”, that is, the configuration of the storage posture holding device is simplified.

Further, as described above, since the urging means for urging the locked portion and the locking portion to lock each other is provided, as described above, the front leg and the seat cushion are rotated by a predetermined amount. When the seat including these is turned to the "storage posture" by rotating to the position, the locked portion and the locking portion are more securely locked automatically, that is, The seat cushion is automatically locked more reliably, and the seat is held in the "storage posture".

Therefore, the holding of the seat in the "storage posture" is more reliably and automatically achieved by the rotation of the front leg and the seat cushion to the predetermined rotation position. The user can easily operate the seat when holding the seat in the "storage posture".

The turning arm is disposed near the front of the front leg, and the front leg and the turning arm are linked to each other by the engagement between the locked portion and the guide portion. I have.

Therefore, when the front leg is rotated in the front-rear direction, for example, when the seat is to be put in the "storage posture", the rotating arm is moved in the same direction in the front-rear direction together with the front leg near the front leg. To rotate.

Therefore, the pivot arm, which is a part of the component of the locking means, is prevented from greatly protruding outward from the seat, and the seat is compact as a whole in any posture. , And the space around the seat can be widened.

According to a second aspect of the present invention, the locking between the locking portion and the locked portion is released by the backward rotation of the rotating arm.

Therefore, the operation for releasing the holding state of the "storage posture" is a single operation of rotating the rotating arm backward, that is, the "storage posture". The operation for the sheet when the holding of the sheet is to be released can be easily performed.

Further, as described above, the sheet is stored in the "storage posture".
Then, the space on the rear side of the sheet is usually used as a luggage compartment. In the above case, the luggage in the luggage compartment may collide with the seat from behind and the external force at the time of the collision may be applied to the rotating arm.
Since the locking arm and the locked part are released from each other by the backward rotation of the rotating arm, the locking is inadvertently released by the collision. That is prevented.

Accordingly, the holding of the sheet in the "storage posture" is more reliably held.

According to a third aspect of the present invention, the pivot arm is urged to rotate in one of the front and rear directions about the pivot support so as to press the guide portion against the locked portion. A biasing means is provided.

Therefore, the rotating arm and the locked portion are always pressed against each other by the urging means, so that rattling between the two is prevented.

Further, if the guide portion is a long hole, when the locked portion and the guide portion are engaged with each other, the urging force of the urging means causes the rear side (or the front side) of the guide portion.
Is pressed against the locked portion, and the front (or rear) guide surface of the guide portion slightly separates from the locked portion.

For this reason, the portion of the rotating arm constituting the front guide surface (or the rear guide surface) is unnecessary and can be deleted. It can be formed with a simple arm material without holes. Accordingly, the configuration of the storage attitude holding device for holding the sheet in the “storage attitude” is simplified accordingly.

[Brief description of the drawings]

FIG. 1 is a partially enlarged view of FIG. 4 in a first embodiment.

FIG. 2 is an overall side view of the seat according to the first embodiment when the seat body is at a rearmost position in a “seatable posture” of the seat.

FIG. 3 is an overall side view of the seat according to the first embodiment when a seat body is at a frontmost position in a “seatable posture” of the seat;

FIG. 4 is a diagram illustrating an operation when a sheet is stored in the first embodiment.

FIG. 5 is a diagram corresponding to FIG. 1 in a second embodiment.

FIG. 6 is a diagram corresponding to FIG. 1 in a third embodiment.

FIG. 7 is a view corresponding to FIG. 1 in a fourth embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Body 2 Floor panel 3 Cab 4 Seat 6 Seat body 7 Support means 8 Seat cushion 9 Seat back 10 Pivot support 13 Front leg 14 Rear leg 15 Front upper support 16 Rear upper support 17 Front lower support 18 Locking tool 38 Rotation preventing means 41 Storage posture holding device 42 Locking means 43 Pivot support 44 Rotating arm 45 Locked part 46 Guide part 48 Locking part 49 Biasing means

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Takeo Fujishima 2-4-6, Higashi-nanmachi-cho, Toyonaka-shi, Osaka F-Sheet F-term (reference) 3B087 BD01 CA12 DA10

Claims (3)

[Claims] 1. A seat cushion positioned above a floor panel and extending substantially horizontally, a front leg extending downward from a lower surface of a front portion of the seat cushion, and the front leg is rotatable back and forth. A front upper pivotal support for pivotally supporting the upper end of the front leg to the seat cushion; and a front lower pivotal support for pivotally supporting the lower end of the front leg to the floor panel so that the front leg can be freely rotated back and forth. A seat for an automobile, wherein the lower end portion of the seat protrudes upward from the floor panel near the front of the front leg so that the upper portion thereof is rotatable in the front-rear direction. A moving arm, a locked portion attached to the seat cushion, and the locked portion formed on the rotating arm to engage with the locked portion and rotate the seat cushion and the front leg. A guide portion slidable with each other, the pivot arm being pivoted forward to pivot the front leg to a predetermined pivot position around the front lower pivotal support, and the seat cushion to the front upper pivotal support. When the front part is pivoted forward and upward to a predetermined pivot position away from the floor panel with the center as the center, the engaged part sliding on the guide part is detachably engageable. A storage posture holding device for an automobile seat, comprising: a stop portion; and a biasing unit that biases the locked portion and the locking portion to lock each other. 2. The holding posture of the vehicle seat according to claim 1, wherein the locking of the locking portion and the locked portion is released from each other by the backward rotation of the rotating arm. apparatus. 3. An urging means for urging the rotating arm to rotate in one of the front and rear directions around the pivot support so as to press the guide portion against the locked portion. The storage posture holding device for a vehicle seat according to claim 1 or 2.