JP2000043623A - Slide sheet jump-up control structure - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent deterioration in operability, appearance quality, etc. due to the addition of a flip-up function. [Configuration] A link 52 pivotally attached to the slide rail 26
The link is connected to the cam lever 44 via a connecting wire 56 so as to be rotatable in conjunction with the lock release operation by the release lever, and the link is rotated from the initial position under the engagement with the tip 52b of the link. Release restriction plate that regulates 58
Are partially arranged and fixed on the guide rail 28, while leaving the link rotation assurance area in a predetermined portion.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flip-up restricting structure in a slide sheet provided with a flip-up mechanism.

[0002]

2. Description of the Related Art For example, there is a seat (slide seat) provided with a seat slide device capable of moving a seat in the front-rear direction under slide of a slide rail (also referred to as an upper rail) with respect to a guide rail (also referred to as a lower rail). It is no longer common as the front and rear seats of various passenger cars, for example, sedan (also called saloon), station wagon (also simply called wagon), or RV-based (multipurpose) cars such as minivans and one-box cars. I have.

In recent years, passenger cars and the like have
There is a tendency to see it as a comfortable space that can be moved, not just a means of movement. For example, a multifunctional seat is required as a means of creating the comfortable space. The required functions for the sheet include, for example, a sheet folding function in addition to the sheet sliding function and a function of jumping up from the folding.

[0004] As a fold used in this type of seat, a fold by forwardly moving a seat back at a first hinge at a rear portion of a seat cushion is generally used.
From the folded state of the seat, the front end of the seat cushion is flipped up to the front inverted position by the second hinge,
It is widely known as a flip-up of a seat that effectively secures a rear space of an automobile interior, particularly a passenger car or the like.

[0005]

By the way, in a passenger car or the like, such as a steering wheel (handle) in a front seat, an instrument panel, a console box in a rear seat (second seat), a simple table, or the like, a front or a front portion of the seat is used. There are many indoor configurations in which various on-board facilities are arranged on the side and the like. On the other hand, as described above, the flipping-up of the seat is performed by flipping the folded seat forward by the second hinge at the front end of the seat cushion. , Depending on the front and rear position of the seat, the jumped-up seat easily interferes with and comes into contact with on-board equipment such as the front of the seat.

[0006] Such interference and contact of the seat with the on-board equipment not only complicates subsequent re-operation and post-processing operations, but also causes damage to the on-board equipment or the seat. Cheap. In other words, simply adding the flip-up function to the slide sheet
Although the functionality of the seat is enhanced by the addition of the flip-up function, there is a possibility that the operability of the seat may be reduced, and the on-board equipment and the appearance quality of the seat may be deteriorated due to damage or the like.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a slide sheet jump-up restricting structure which prevents deterioration in operability, appearance quality and the like accompanying the addition of a jump-up function.

[0008]

According to the present invention, in order to achieve this object, the front end of a seat cushion having a first hinge at a rear portion serving as a center of rotation of a seat back is provided on a slide of a seat slide device. The second against the rail
A latch is pivotably provided on the lower surface of the seat cushion, and is latched and pivotally connected to the front inverted position via a hinge so as to be pivotally mounted on the seat cushion under engagement with the striker. Are released so as to be able to release the engagement with the striker under a lock release operation by the release member, and are operatively connected to the corresponding movable member.

The link pivotally connected to the slide rail is connected via a connecting wire so as to be rotatable in conjunction with the unlocking operation by the releasing member, and the link with the tip of the link is also engaged. With this, a release restriction plate of an appropriate length for restricting the rotation of the link from the initial position is partially arranged and fixed on the guide rail of the seat slide device, leaving the link rotation assurance area in a predetermined portion. Due to the rotation restriction of the link by the release restriction plate, it is impossible to release the lock between the latch and the striker outside the link rotation guarantee area.

[0010]

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

As shown in FIGS. 1A and 1B and FIG.
In the slide seat flip-up restricting structure 10 according to the present invention, the seat 12 is formed as a slide seat provided with the seat slide device 14, and can be folded under the forward movement of the seat back 18 with respect to the seat cushion 16, and When the lock means 20 is unlocked in the folded state, it can be flipped up to the front inverted position.

As shown in FIG. 2, in the seat (slide seat) 12, a seat back 18 is provided, for example, in a first portion at a rear portion of the seat cushion with respect to the seat cushion 16.
It is rotatable via a hinge 22, and is particularly connected and supported so as to be able to be folded, that is, to be able to be folded, in front of the seat surface 18 a of the seat cushion so that the seat surface 18 a is opposed to abut the seat surface 16 a. The front end of the seat cushion 16 is rotatably connected to the slide rail 26 of the seat slide device 14 via the second hinge 24, and the first hinge 22 folds the seat back 18 (see a dashed line), and The seat 12 can be flipped forward by two hinges (see the two-dot chain line) sequentially.
Is composed.

For example, as can be seen from FIG. 1 (A-1) in addition to FIG. 2, the seat slide device 14 includes a seat side slide rail 26 and a floor side guide rail 28.
In contrast, the seat can be slidably assembled via rolling elements such as steel balls 30, rollers 32, etc., and the seat can be set to any front and rear position under slide regulation by a predetermined locking means (not shown) Is configured.

The structure of this type of seat slide device 14 is known, and its configuration is not the purpose of the present invention. Therefore, detailed description thereof is omitted here.

Here, as shown in FIGS. 1B and 2, in the seat 12 having the above-described flip-up function, the locking means 20 having the rotatable latch 34 is usually used.
The seat cushion and, consequently, the seat are arranged under the engagement of a latch with a striker 38 fixed to the slide rail 26 of the seat slide device. Can be held at the seating position.

As can be seen from FIG. 1B-2, the locking means 20 includes a latch 34 pivotally supported by a pivot pin 40,
For example, a lock claw 42a engageable with the engagement end 34a of the latch
And a cam lever 44 for causing the lock plate to follow the rotation of the lock plate under the engagement of the engagement claw 44a with the lock plate.
, And can be arranged at the rear of the lower surface of the seat cushion 16 by unitization with the unit base 48.

The connecting end 44b of the cam lever 44 is connected to a release member, for example, a release lever 50 provided on the side surface of the seat back 18, by a flexible wire or the like (not shown).
And the cam lever in the clockwise direction in the figure interlocked with the rotation operation of the release lever, and the rotation of the lock plate 42, whereby the engagement of the latch 34 with the striker 38 can be released. I have.

In this type of locking means 20, the latch 34
Is biased in the direction of disengaging from the striker 38 (counterclockwise in the figure) under the biasing force of a return spring (not shown) composed of a torsion spring or the like. Also,
The cam lever 44 engages the lock plate 42 with the latch 34 under the biasing force of another return spring (not shown),
It is biased in the holding direction (counterclockwise in the figure).

The structure of the lock means 20 is well known and is not the gist of the present invention, and will not be described in detail here.

Here, as shown in FIG. 1A, in the present invention, the link 52 is, for example, a base end at a pivot pin 54.
The pivoting of 54a is rotatably disposed and supported on the slide rail 26 of the seat slide device, and the distal end (free end) 54b of this link is used as a release lever (release member).
A movable member interlocking with the unlocking operation of the lock lever 50, for example, a connecting end 44 b of a cam lever is operably connected via a connecting wire 56.

As the connecting wire 56, for example, a so-called flexible wire in which an appropriate flexible wire material 56-1 is covered with a tube 56-2 so as to be able to advance and retreat can be used. As shown in FIGS. 1 (A-1) and 1 (B-2), in this type of connecting wire (flexible wire) 56, a tube 56 is used.
-2 are locked and held by the slide rails 26 or locking plates 60, 61 fixed to the seat cushion 16, and the ends of the wire member 56-1 are connected to the connecting end of the cam lever 44 and the link. Are locked to the tip 52b of the
Due to the advance and retreat of the wire material in the tube, the link 52 becomes
The cam lever 44 is rotatable in conjunction with the rotation of the cam lever 44 in the unlocking direction.

That is, in this configuration, the release lever
When the lock means 20 is to be unlocked under the operation of 50, the wire member 56-1 is turned rightward in FIG. 1 (B-2) by the rotation of the cam lever 44 in the clockwise direction in FIG. To the end of the link 52b through this wire material
Is rotated clockwise in FIG. 1 (A-2) (FIG. 3 (B-2), (A-
2)).

Note that, as shown in FIG.
Is set as an initial position, for example, with the tip 52b positioned rearward (to the right in the figure) as the initial position, and is wound around the pivot pin 54 and locked at the respective ends to the corresponding members. It is biased and held at the initial position under the biasing force of the return spring 57 formed of a torsion spring.

As shown in FIGS. 1A and 2, in the present invention, the rotation of the link 52 from the initial position due to the operation of releasing the lock of the release lever 50 causes the engagement with the link tip 52 b to be stopped. The release restricting plate 58, which is regulated under the control, is partially arranged and fixed on the guide rail 28 of the seat slide device, partially leaving the link rotation ensuring area.

As shown in FIG. 1 (A-1), the release restricting plate 58 is bent into a substantially rectangular shape having a horizontal piece 58a. And contacting or interfering with on-board equipment at the front and side of the seat, such as the steering wheel (handle) on the front seat, the instrument panel, or the console box or simple table on the rear seat (second seat). The rotation ensuring area of the link 52 is defined and set at a position where the front and rear positions of the seat 12 where the flip-up operation can be performed without being set can be set.

For example, the rear end position of the seat 12, that is, the slide rear end position of the slide rail 26 with respect to the guide rail 28, can be set and defined as a rotation assured area in which the link 52 can be turned. It is arranged and fixed to the guide rail in a state extending forward (leftward in the figure) from the front edge of the area.

When the slide rail 26 is at the slide end position shown in FIGS. 1A and 1B, the link 52 is
It is in the rotation assurance area without 58, and is not subject to rotation restriction by the release restriction plate. That is, if the release lever 50 is unlocked after the seat 12 has been folded by the forward tilting of the seat back 18 at the slide rear end position of the slide rail 26 (see the dashed line in FIG. 2), the latch 34 in the unlock direction is unlocked. The rotation, that is, the unlocking operation of the latch is performed under the rotation of the link 52 in the rotation assurance area.
As shown in FIGS. 2A and 2B, the seat can be flipped up by unlocking the latch and striker 38 (see the two-dot chain line in FIG. 2).

On the other hand, as shown in FIGS. 4A and 4B,
When the seat 12, that is, the slide rail 26 moves forward from the slide rear end position with respect to the guide rail 28, the link
52 is a horizontal piece of release control plate that is out of the rotation security area
The rotation of the link in conjunction with the unlocking operation of the release lever 50 is restricted by the engagement of the distal end 52b with the horizontal piece, and thereby the unlocking operation of the latch 34 and, consequently, the release lever The lock release operation itself becomes impossible.

As described above, in the slide sheet flip-up restricting structure 10 of the present invention, the link 52 that rotates in conjunction with the unlocking operation of the release lever 50 is provided on the slide rail 26, and the link from the initial position is provided. By providing the guide rail 28 with a release restricting plate 58 that restricts the rotation of the link under engagement with the link tip 52b, the position where the latch 34 can be unlocked can be moved by the slide rail relative to the guide rail. It is limited to the last slide position. That is, according to the present invention, since the position where the seat 12 can be flipped is limited to the rear end position of the seat, it is possible to easily secure the flip of the seat that does not contact or interfere with the on-board equipment located in front of the seat or the like. Thus, the prevention of damage and the like caused by this can surely prevent the deterioration of the appearance quality of the on-board equipment and the seat.

Then, the sheet 12 defined by this
If the unlocking operation of the latch 34 is performed at the position where the seat can be flipped up, the seat can be flipped up reliably and easily without being hindered by the on-board equipment, so that the reliability of the operation is improved.

Further, if the link 52 of the slide rail is connected so as to be interlocked with the unlocking operation of the latch 34 by the release lever 50, and a release restricting plate 58 is provided at a front position excluding the link rotation guarantee area. Therefore, the position where the seat 12 can be flipped up can be limited without complicating the configuration. Accordingly, the high functionality of the seat 12 having the flip function added to the slide function can be easily achieved without deteriorating the operability, the on-board equipment, the appearance quality of the seat, etc., and without complicating the configuration. Can be secured.

Here, in the embodiment of the present invention, the rotation assurance area of the link 52 is set at the slide end position of the slide rail 26 relative to the guide rail 28 of the seat slide device, that is, at the rear end position of the seat 12, Although it is stipulated, it is sufficient if the seat can be flipped up without contacting or interfering with the on-board equipment such as the front of the seat. Therefore, the seat is not limited to the rear end position of the seat. An appropriate range ahead of the amount may be defined as the link rotation guarantee area.

However, if the rotation ensuring area of the link 52 is defined at the slide end position of the slide rail 26 with respect to the guide rail 28 of the seat slide device, regardless of the type of vehicle such as a front seat, a rear seat, or a passenger car,
Since the flip-up of the seat 12 that does not contact and interfere with the on-board equipment can be secured, a slide sheet excellent in versatility can be easily obtained.

In this embodiment, the position of the lock means 20 is embodied as the lower rear portion of the seat cushion 16, but the seat 12 is seated under engagement with the striker 38 of the slide rail 26 of the seat slide device. The position is not limited to this as long as it can be held at the position. For example, the lock means and the striker may be arranged at an intermediate position between the front end and the rear end.

Further, in the embodiment of the present invention,
The link 52 is connected so as to be able to interlock with the unlocking operation of the release lever 50 under the locking of the connecting wire 56 to the link tip 52b. However, the present invention is not limited to this. For example, a locking piece is extended from the base end 52a of the link, and the locking piece is connected to the end of the connecting wire, that is, the wire member 56-1. The terminal may be locked. In this case, the link 52 can rotate in the counterclockwise direction in the drawing, but in either the clockwise direction or the counterclockwise direction in the drawing, the tip of the link that rotates from the initial position can be used. 52b
Needless to say, it is sufficient to dispose the release restricting plate 58 so as to be able to engage.

In this embodiment, the link
The rotation of the link can be linked to the unlocking operation by the release lever 50 by locking the other end of the connecting wire 56 locked at one end to the cam lever 44 of the locking means, but the link is unlocked. The link may be connected to a movable member other than the cam lever, for example, the lock plate 42, the latch 34, the release lever 50, or the like, as long as the link can be rotated in conjunction with the operation. However, if the cam lever 44 is used, whether or not the link 52 can be rotated is directly transmitted to the latch 34 and the release lever 50 via the connection wire 56, so that the operator of the release lever can reliably confirm whether or not the rotation is possible. Can be recognized. Therefore, also from this point, the operability when the seat 12 is flipped up is improved.

Although the slide seat flip-up restricting structure of the present invention is suitable for a seat of an automobile or the like, the present invention is not limited to this, and other vehicles such as trains, airplanes, etc.
The present invention may be applied to a seat of a ship or the like.

The embodiments of the present invention described above are for explaining the present invention, and do not limit the present invention in any way, and may be modified or modified within the technical scope of the present invention. It goes without saying that all are included in the present invention.

[0039]

As described above, according to the slide sheet jump-up restricting structure according to the present invention, the sheet cannot be jumped up at a position other than the preset jumpable position. It is possible to easily secure the jump of the seat that does not come into contact with or interfere with the on-board equipment located therein, thereby easily and reliably preventing the deterioration of the on-board equipment and the appearance quality of the seat due to the jump of the seat.

When the latch is unlocked at the position where the sheet can be flipped up as defined above,
Since the seat can be flipped up reliably and easily without being hindered by the on-board equipment, the reliability of the operation is improved.

Further, the link of the slide rail is connected so as to be interlocked with the unlocking operation of the latch by the release member, and it is sufficient to provide a release restricting plate at a front position excluding the rotation assurance area of the link. The position where the sheet can be flipped up can be limited without complicating the operation.

Accordingly, it is easy to enhance the functionality of the seat by adding the flip-up function to the slide function without deteriorating the operability and the appearance quality of the on-board equipment and the seat, and without complicating the configuration. Can be secured.

Further, if the rotation assurance area of the link is defined at the slide rear end position of the slide rail with respect to the guide rail of the seat slide device, contact with the on-board equipment regardless of the type of vehicle such as a front seat, a rear seat, or a passenger car. In addition, since it is possible to ensure that the sheet does not interfere, it is possible to easily obtain a slide sheet having excellent versatility.

Further, if the link can be interlocked with the unlocking operation under the connection with the cam lever, whether or not the link can be rotated is directly transmitted to the latch and the releasing member via the connecting wire. Therefore, it is possible to make the operator of the release lever surely recognize the possibility. Therefore, also from this point, the operability at the time of jumping up the seat is improved.

[Brief description of the drawings]

FIG. 1 is a schematic longitudinal cross-sectional view of a slide sheet flip-up restricting structure according to the present invention in an initial state, as viewed from the front of a link portion, and a front view thereof; FIG.

FIG. 2 is a schematic side view of a slide sheet provided with a flip-up function.

FIG. 3 is a schematic longitudinal cross-sectional view of a slide sheet flip-up restricting structure when unlocked, as viewed from the front of a link portion, and a front view thereof; It is a longitudinal cross-sectional view.

FIG. 4 is a schematic longitudinal cross-sectional view of a slide sheet flip-up restricting structure in a lock release restricting state, as viewed from the front of a link portion, and a front view thereof; FIG.

[Explanation of symbols]

 10 Slide sheet flip-up control structure 12 Seat (slide seat) 14 Seat slide device 34 Latch 38 Striker 44 Cam lever 50 Release member (release lever) 52 Link 56 Connecting wire 58 Release control plate

Claims (3)

[Claims] 1. A slide sheet in which a seat that can be folded under a seat back with respect to a seat cushion can be slid in the front-rear direction by a seat slide device having a combination of a slide rail and a guide rail. A front end of the seat cushion having a first hinge at a rear portion serving as a rotation center of the seat back is connected to the slide rail of the seat slide device via a second hinge so as to be able to jump up to a front inverted position. A latch is pivotally mounted on the lower surface of the seat cushion so as to be rotatable on the seat cushion under the engagement with the striker, and is provided on the lower surface of the seat cushion. The slide rail is connected so that it can be disengaged and linked to the corresponding movable member. The pivotally connected link is connected via a connection wire so as to be rotatable in conjunction with the lock release operation by the release member, and the link from the initial position is engaged with the tip of the link. A release restriction plate of an appropriate length for restricting the rotation of the link is partially arranged and fixed on the guide rail of the seat slide device, leaving a rotation ensuring area of the link in a predetermined portion. A slide sheet flip-up restricting structure that makes it impossible to release a latch and a lock between strikers in a region other than the link rotation guarantee region by the rotation restriction. 2. The release restriction plate is bent and formed into a substantially rectangular shape having a horizontal piece, and a slide rear end position of the slide rail with respect to a guide rail of the seat slide device can be defined as a rotation ensuring area of the link. 2. The slide seat flip-up restricting structure according to claim 1, wherein the slide seat flip-up restricting structure is arranged and fixed to the guide rail in a state of extending forward from a front edge of the link rotation assurance area. 3. A lock plate having, in addition to a latch pivotally supported by a pivot pin so as to be engageable with the striker, a lock claw engageable with an engagement end of the latch; And a cam lever for causing the lock plate to follow its rotation under engagement under pivoting by the same pivot pin, the locking means being formed, wherein the connecting end of the cam lever of the locking means is The link end of the slide rail of the seat slide device is connected to the connection end of the cam lever via a predetermined wire means, while being operatively connected to a release lever on the side of the seat back serving as a release member. The slide sheet flip-up regulating structure according to claim 1 or 2.