JP3121179B2 - Automotive seat locking device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a locking device for a vehicle seat.

[0002]

2. Description of the Related Art The above-mentioned locking device for an automobile seat includes:
Conventionally, there is the one configured as follows.

[0003] That is, a bracket is provided upright on the cabin floor.
The upper side of this bracket is turned forward and downward,
The lower end is on the floor side of the passenger compartment so that it can return
It is pivoted. It extends almost horizontally and can be seated.
The rear side of the seat cushion facing the bracket.
The front part is the above-mentioned bracket so that
The seat cushion is pivoted at the upper end of the seat cushion.
The rear of the vehicle is placed on the vehicle floor.

The seat cushion is pivoted back and forth at the rear.
The cabin flow is freely pivotally supported and is biased by the first spring.
On the side A, a hook is provided for engaging and disengaging. Ma
The hook extended to the bracket extending in the front-back direction
Is provided with a link mechanism for interlocking and linking.

The engagement by the hook is released, and the hook is released.
While rotating the racket forward, the seat cushion
Is rotated forward, the bracket is connected via the link mechanism.
The hook interlocked with the first spring biases the first spring.
Rotate to the inside of the seat cushion while opposing the force
And the seat cushion is almost horizontal
And the front of the cabin
It is located on the lower and stored
I have.

[0006] Then, the seat cooker in the above-mentioned stored state is provided.
The top side is almost horizontal, so the top side
It can be used for placing small packages.

[0007]

THE INVENTION Problems to be Solved by the way, the above prior
With technology, the seat cushion is stored from a state where it can be seated
When trying to put it in a state, the hook is a seat cushion
Inside the seat cushion
The hook for this seat cushion
If the storage position is incorrect, the seat cushion is stored.
The hook will contact the passenger compartment floor when
To prevent the desired storage state from being obtained.
Occurs.

On the other hand, hook engagement with the vehicle cabin floor side
The seat cushion is ready to be seated.
Rutoki, the urging by the first spring Kurumashitsufu via a hook
The bias is only applied to the lower side , and does not act on the link mechanism. For this reason, this link mechanism is in a free state, and there is a possibility of rattling due to vibration of the vehicle body.

[0009]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and allows a seat cushion of a seat to be seated by engaging the seat cushion with the floor side of a passenger compartment.
A hook Ru is the ability state provided, the seat cushion
When to the retracted state from the seatable state, so as to house the said hook inside said seat cushion
When a link mechanism for operating the hook is provided, when the seat cushion is stored,
Hook is stored in the correct storage position
And this is achieved with a simple configuration
And the seat cushion can be seated.
In this case, it is an object to prevent rattling of the link mechanism.

[0010]

A feature of the present invention to achieve the above object is to provide a vehicle on a vehicle floor 3.
The racket 10 is erected, and the upper side of the bracket 10
Forward and downward rotation (C) and return rotation (reverse to C)
So that its lower end is pivotally supported on the cabin floor 3 side,
The rear side of the seat cushion 5, which extends substantially horizontally, is
Forward rotation (D), return rotation (opposite to D) toward racket 10
The front part is the upper end of the bracket 10 so that it can be freely
And the rear of the seat cushion 5
Place it on the cabin floor 3 side and use the seat cushion
The first spring 20 is pivotally supported by the rear of the
Engagement with the above-mentioned cabin floor 3 side by the urging force so as to be freely detachable.
Hook 16 is provided,

The bracket 10 extends long in the front-rear direction.
A link mechanism 25 for interlocking and connecting the hook 16 is provided.
The hook 16 to release the engagement, and
The seat 10 is rotated forward (C), and the seat
When the link 5 is rotated forward (D), the link mechanism 2
5 is connected to the bracket 10 via the
While the spring 16 opposes the urging force of the first spring 20
When it is turned (A) inside the seat cushion 5
In both cases, the seat cushion 5 is stored in a substantially horizontal posture.
In a locking device for an automobile seat,

The front and rear ends of the link mechanism 25
An elongated hole 30 is formed at one end of the gap, and
A member that fits relatively slidably in the longitudinal direction of the hole 30.
Either the joint shaft 31 is either the bracket 10 or the hook 16.
And the seat cushion 5 is provided in the storage shape.
When in the state, the one end edge of the long hole 30 in the longitudinal direction and
The engagement shaft 31 is pressed into contact with the engagement shaft 31 via the link mechanism 25.
The hook 16 is linked to the bracket 10
So that

A second spring 36 for elastically connecting the link mechanism 25 to the hook 16 is provided.

[0014]

[Operation] The operation of the above configuration is as follows.

The seat cushion 5 of the seat 1 can be seated.
In the state shown in FIG.
(The solid line in FIGS. 2 and 3).

The seat cushion 5 can be seated.
From the accommodated state in an attempt to in (in FIG. 2 two-dot chain line), off
Disengage the bracket 16 and move the bracket 10 around
Movement (C) (FIG. 2) and the above seat cushion
5 is rotated forward (D) (FIG. 2). Then, the engagement shaft
31 extends the slot 30 from the other end (front end) to one end (rear end).
Slide toward the end). During this sliding, the link mechanism
The hook 16 is linked to the bracket 10 via 25
The hook 16 against the seat cushion 5
The relative position is kept as it is when the seat can be seated.

As the sliding progresses, the engagement shaft 31
If one end edge (rear end edge) of the long hole 30 comes into pressure contact (one in FIG. 3).
Then, the seat cushion 5 is stored.
The link mechanism 25 until the
A hook 16 interlocks with the ket 10, and this hook 16
Rotation (A) toward the inside of the seat cushion 5 (FIG.
1) It is stored in the seat cushion 5
(Two-dot chain line in FIGS. 1 and 3).

Here, as described above, the seat cushion
When the housing 5 is in the housed state, the engagement shaft 31
The above link mechanism starts when pressed against one edge (rear edge).
25 and the hook 1 in conjunction with the bracket 10.
6 is rotated (A), so that the engagement shaft 31 and the long hole
If the pressure contact position with 30 is set to a predetermined position, the seat
When the seat 5 is stored, the seat cushion
The hook 16 is stored in the correct storage position with respect to
Will be done.

Incidentally, as described above, the link mechanism 2
The engagement shaft 31 is slidably fitted in the long hole 30 formed in
With this configuration, the seat cushion 5 can be seated.
Hook 1 to the cabin floor 3 side
6, the seat cushion 5 can be seated.
, The bias by the first spring 20 is
Since it does not act on the link mechanism 25,
The lock mechanism 25 is in a free state.
A long hole 30 formed in the link mechanism 25;
The engagement shaft 31 fitted to the shaft slides freely on each other,
Backlash between the lock mechanism 25 and the engagement shaft 31
There is.

[0020] Accordingly, there is provided a second spring 36 which Ru the link mechanism 25 are bonded sexually series two the hook 16.

[0021] For this reason, the long hole 30 of the link mechanism 25
And the engagement shaft 31 are prevented from sliding freely with each other .

[0022]

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

In the figure, reference numeral 1 denotes a bench type seat for an automobile. The seat 1 is provided on a cabin floor 3 in a cabin 2. In addition, the symbol Fr in the figure indicates the front of the automobile. The left and right described below refer to the direction toward the front of the vehicle.

The seat 1 has a seat cushion 5 extending substantially horizontally . At the rear of the seat frame 6 of the seat cushion 5, a seat back 7 is pivotally supported by a first pivot shaft 8 so as to be able to rotate back and forth. The seat back 7 can be locked to the seat cushion 5 side at a desired angle in the front-rear direction. When the seat back 7 is rotated rearward to the position shown by the solid line in FIG. 2, the seat 1 can be seated. , Is folded on the seat cushion 5.

The cabin floor 3 has front and rear portions 3a, 3a.
b, the front part 3a is the lower part and the rear part 3b
Is at the top.

A bracket 10 is erected on the front part 3a of the passenger compartment floor 3, and the upper side of the bracket 10 is
Forward and downward rotation (C) and return rotation (reverse to C)
So as the front 3 the lower end by the second pivot shaft 11
It is pivotally supported on the a side . Rear of the seat cushion 5
The side turns forward (D) toward the bracket 10 and returns.
(The reverse of D) The front part is connected to the third pivot 12
It is pivotally supported by the upper end of the bracket 10 . On the other hand, the rear part of the seat cushion 5 is mounted on another bracket 13 attached to the rear part 3b of the passenger compartment floor 3.

When the seat cushion 5 is supported on the bracket 10 in the standing position and on the other bracket 13, the seat cushion 5 is removably engaged with the vehicle cabin floor 3 and locked. A device 15 is provided, by means of which the seat cushion 5 can be seated
It is in a state .

The lock device 15 has a hook 16,
The hook 16 is pivotally supported by a fourth pivot shaft 17 to the rear left side of the seat frame 6 so as to be able to rotate back and forth. On the other hand, at a position corresponding to the hook 16, a striker 19 is attached to the rear portion 3 b of the passenger compartment floor 3.
The hook 16 is detachably engaged with the striker 19 by turning the hook 16 forward and backward, and the first spring 20 that urges the hook 16 to engage with the striker 19 by rotating the hook 16 forward. Is provided.

The hook 16 is provided with a stopper 21 projecting therefrom.
When the hook 6 rotates forward, the stopper 21 abuts against a portion 6a of the seat frame 6 to prevent the hook 16 from further rotating forward. A lever 22 is fixed to the hook 16.

A handle 23 protrudes from the left side of the rear portion of the seat frame 6. The handle 23 has a U-shape in plan view so as to cover the hook 16 and the lever 22 from outside. Is provided.

The seat cushion 5 shown by a solid line in FIGS. 1 and 2 is in a state in which the hook 16 is engaged with the striker 19 and locked to the vehicle cabin floor 3 side. In addition,
In this case, the hook 16 is actually elastically joined to the striker 19. From this state, the lever 2
When the seat 2 is lifted upward, the hook 16 is disengaged from the striker 19 as shown by a two-dot chain line in FIG. 1, and the seat 1 is moved from the second pivot shaft 11 to the third pivot shaft 1.
It is possible to rotate forward two turns.

[0032] Rutoki to the above-mentioned sheet 1 in the storage state,
As described above, the lever 22 is pulled up to release the engagement of the hook 16 with the striker 19 (shown by an arrow A in FIG. 1 and a two-dot chain line).

Next, the seat back 7 is rotated forward about the first pivot 8 (arrow B in FIG. 2), and the seat cushion 5 is rotated.
Fold up. Next, by gripping the handle 23, the seat cushion 5 and the seat back 7 are integrally turned forward around the second pivot 11 (shown by an arrow C in FIG. 2 and a dashed line).

Further, together with the above rotation, the rear part of the seat cushion 5 is made to rotate forward (D) around the third pivot 12.
When, in a state where the seat back 7 is folded on the seat cushion 5, the seat 1 is housed in the front portion 3a of the passenger compartment floor 3, Ru is a housed state (two-dot chain line in FIG. 2 shown). This
In this case, the seat cushion 5 is in a substantially horizontal posture.
And the cabin floor 3 in front of its original position
Is placed on the front portion 3a of the camera and the storage state is established.

The seat 1 is taken out of the stored state as shown in FIGS.
To return to the seatable state as shown by the solid line, the procedure reverse to that described above may be used. Incidentally, in this case, can the rear portion of the seat cushion 5 is placed on the other of the bracket 13, the hook 16 is once rotated rearward comes into contact with the striker 19 by the biasing force of the first spring 20 , Is automatically engaged with the striker 19.

The bracket 10 extends long in the front-rear direction.
Link mechanism 25 is provided which Ru is interlocked hooks 16.

The link mechanism 25 forms a rear end.
Rotating plate 26, and the rotating plate 26
The fourth pivot 17 is pivotably supported by the fourth pivot 17 around the fourth pivot 17. An engagement bar 27 protrudes from the rotation plate 26.

Reference numeral 29 denotes a link body.
The rear end of which is pivotally supported by the engagement bar 27. Also,
The front end of the same link body 29 <br/> long hole 30 long Ku extending longitudinally is formed, longitudinally engaging shaft 31 projecting from the bracket 10 of the slot 30 in the elongated hole 30 In relative
It is slidably fitted in manner.

The hook 16 is formed with an arc-shaped long hole 34 centered on the fourth pivot 17.
The engagement piece 35 protruding from the rotation plate 26 is fitted into the rotation plate 26. The long hole 34 and the engagement piece 35 may not be provided.

As shown by an arrow E in FIG. 1, a second spring 36 is provided for urging the rotating plate 26 to rotate about the fourth pivot 17, and the rotation by the second spring 36 is provided. Due to the rotation of the plate 26, the engagement bar 27 rotated with the rotation of the plate 26 elastically contacts the hook 16 as shown in FIG. Along with this, FIG. 2, the front edge and the engaging shaft 31 of the elongated hole 30 as indicated by a solid line in FIG. 3 is elastically brought into contact with, further, the engagement pieces 35 as shown in Figure 1 the length Hole 34
Is elastically in contact with one end edge .

[0041] Then, as in FIGS. 1-3 the solid line shown,
The seat cushion 5 of the over door 1 from a state capable of seating, this
To put it in the stowed state, first
Forward rotation about the second pivot 11 integrally with the bracket 10
(C) (FIG. 2) it is, makes the state of the one-dot chain line in FIG.
Next, 往回the seat cushion 5 in the third pivot shaft 12 about
Movement (D) (FIG. 2). Then, the engagement shaft 31 slides from the front end side of the long hole 30 toward the rear end side. this
During sliding, the bracket is connected via the link mechanism 25.
Since the 10 hook 16 is not interlocked, the relative position location of the hook 16 relative to the seat cushion 5 is kept to remain when the seating possible state shown in FIG. 1, 2 in solid lines.

The seat cushion 5 is further moved from the above state.
When rotated (D) (FIG. 2), the engagement shaft 31 and the long hole 3 are rotated.
0 is pressed against the trailing edge (dotted line in FIG. 3), and then
The seat cushion 5 is in the stored state (two-dot chain line in FIG. 2).
Until the engagement shaft 3 is engaged as shown by a two-dot chain line in FIG.
1 and the rear end edge of the elongated hole 30 are pressed against each other to
There is pressed rearward, along with this, press the engagement bar 27 is hook 16 as indicated by two-dot chain lines in FIG. 1 in the rear, the hook 16, Do against the biasing force of the first spring 20 But
Then , rotate (A) the inside of the seat cushion 5
Is, the hook 16 is brought housed inside the seat cushion 5, Ru the seat cushion 5 is in the retracted state <br/>.

On the rear right side of the seat frame 6, another hook having the same shape and size as the hook 16 and another striker having the same shape and size as the striker 19 are provided. It is pivotally supported coaxially with the pivot shaft 17 so as to be able to rotate back and forth.

The other hook is also urged by a spring to engage the other striker.

When the seat 1 is stored on the front part 3a of the passenger compartment floor 3 as described above by releasing the engagement of the other hooks with the other strikers, the other hooks are placed on the upper surface of the front part 3a. , And is turned toward the inner side of the seat cushion 5 and stored inside the seat cushion 5 in the same manner as indicated by the two-dot chain line in FIG.

[0046]

According to the present invention , the bra is placed on the cabin floor.
The bracket is erected, and the upper side of the bracket faces forward and downward.
The lower end of the car so that it can rotate forward and backward.
A seat cushion that pivots to the room floor and extends almost horizontally
The rear part of the part moves forward and backward toward the bracket.
The front part is pivoted to the upper end of the bracket so that it can be freely
While supporting the rear of the seat cushion with the car
Place it on the room floor side, behind the seat cushion
It is pivotally supported back and forth so that it can be moved upward by the biasing force of the first spring.
A hook is provided on the floor side of the cabin so as to freely engage and disengage,

It extends long in the front-back direction and
A link mechanism for interlocking and connecting the hooks is provided.
Disengage the lock, and rotate the bracket forward.
When the seat cushion is turned forward,
Linked to the bracket via the link mechanism
While the hook opposes the urging force of the first spring,
It can be turned inside the seat cushion and
The seat cushion is stored in a substantially horizontal position
In the locking device for an automobile seat as described above,

Either the front or rear end of the link mechanism
At one end, a slot is formed, and this slot is
The engagement shaft that fits relatively slidably in the longitudinal direction is
Provide one of the racket and hook
When the cushion is in the storage state,
One end edge in the longitudinal direction and the engagement shaft are pressed against each other, and
The hook is linked to the bracket via the hook mechanism.
It is made to be.

Therefore, the seat cushion of the seat
When the seat can be seated, the engagement shaft is located at the other end of the slot.
You.

Whether the seat cushion can be seated
Disengaged by hook to try to put it in the stowed state
And rotate the bracket forward, and
The user forward. Then, the engagement shaft is
The hole is slid from the other end toward the one end. This sliding
Middle, hook on the bracket via the link mechanism
Does not interlock, so the hook on the seat cushion
The relative position is kept as it is when the seat can be seated.

As the sliding progresses, the engagement shaft and the elongated hole
If one end edge of the
Through the link mechanism until the
The hook is linked to the bracket, and this hook is
The seat is turned toward the inside of the seat cushion,
Stored inside the seat cushion.

Here, as described above, the seat cushion
When the housing is in the stowed state, the engaging shaft presses against one edge of the slot.
From the point of contact, the bracket
The hook is rotated in conjunction with
If the pressure contact position between the shaft and the long hole is set at a predetermined position,
When the seat cushion is stored, the seat cushion
The hook is stored in the correct storage position
The Rukoto.

The elongated hole and the engagement shaft have a simple shape.
Therefore, as described above,
It is easy to store the hook in the correct storage position.
This is achieved by a simple configuration.

By the way, as described above, the link mechanism
The configuration is such that the engagement shaft is slidably fitted into the formed long hole.
Then, the seat cushion is set in a state where it can be seated.
When the hook is engaged with the vehicle cabin floor, the seat
When the seat cushion is in a state where it can be seated,
The bias by the first spring does not act on the link mechanism.
Because this link mechanism is in a free state,
Due to the vibration of the body, the long hole formed in the link mechanism
The engaging shaft fitted in the elongated hole slides freely on each other,
Backlash between the locking mechanism and the engagement shaft.
You.

[0055] Accordingly, there is provided a second spring which Ru said link mechanism is bullet <br/> sexually joined to the hook.

[0056] For this reason, the long hole of the link mechanism, engaging
The shaft and the free sliding with respect to each other are prevented.

Therefore, as described above, the seat cushion
The hook in the correct storage position
Even if a simple configuration of a long hole and an engagement shaft is adopted,
When the above seat cushion is in a seatable state,
Rattling between the link mechanism and the engagement shaft
Is prevented.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a partially enlarged operation of FIG. 2;

FIG. 2 is an overall side view.

FIG. 3 is an explanatory diagram of a partially enlarged operation of FIG. 2;

FIG. 4 is a sectional view taken along line 4-4 in FIG. 1;

FIG. 5 is a developed perspective view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Seat 2 Car room 3 Car room floor 5 Seat cushion 7 Seat back 10 Bracket 15 Lock device 16 Hook 19 Striker 20 First spring 25 Link mechanism 26 Rotating plate 29 Link body 30 Slot 31 Engagement shaft 36 Second spring

Claims (1)

(57) [Claims] 1. A bracket is erected on the floor of a passenger compartment,
The upper side of the bracket moves forward and backward toward the lower front
The lower end is pivotally supported on the cabin floor side so that it can be freely
And the rear side of the seat cushion that extends almost horizontally
So that it can rotate forward and backward toward the bracket.
While pivoting the front part to the upper end of the bracket,
Place the rear part of the seat cushion on the vehicle floor
To the back of the seat cushion so as to be pivotable back and forth.
Supported by the biasing force of the first spring to engage the vehicle cabin floor.
A hook for detachable engagement is provided, and the hook is extended in the front-rear direction to connect the hook to the bracket.
Provide a link mechanism for dynamic connection, and engage with the hook
And rotate the bracket forward, and
When the seat cushion is turned forward, the link machine
The hook linked to the bracket via the frame
The seat cushion is pressed against the urging force of the first spring.
As well as the seat cushion
In the locking device for a vehicle seat in which the seat is stored in a substantially horizontal position, one of the front end and the rear end of the link mechanism is provided.
A long hole is formed in the
The engaging shaft that is slidably fitted to the bracket is
The seat cushion
Is in the storage state, one of the long holes
The edge and the engagement shaft come into pressure contact with each other via the link mechanism.
So that the hook can be linked to the bracket
And a second mechanism for elastically connecting the link mechanism to the hook.
A lock device for an automobile seat provided with a spring.