JPH07108636B2 - Two-stage folding recliner with walk-in mechanism - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a two-stage folding recliner which can be used as a table instead of a seat back of a seat in an automobile or the like by tilting the seat back forward to a substantially horizontal position. It is equipped with a walk-in mechanism for moving the seat forward at the same time as the forward leaning motion, and the walk-in motion can also be operated with a foot pedal.

[Prior Art] Recently, as vehicles become more sophisticated and diversified, for example, among front, middle, and rear seats installed in a so-called one-box car,
In particular, it is known that the middle seat can be used as a table, and that a back seat occupant is provided with a walk-in mechanism that is convenient for getting on and off to move the middle seat forward (for example, Kaisho 62-29
(See Japanese Patent No. 440). This is because when the seat back of the recliner is tilted forward from the normal seated state and the operation lever is pushed, the lock lever (catch lever) that connects the upper arm supporting the seat back and the lower arm rotates. Since the engagement between the two is released and the upper arm is made rotatable about its shaft attachment portion,
Rotate the upper arm horizontally so that the back side of the seat back can be used as a table surface, and in the middle seat mounted on the seat slide device, attach the grip so that it can be pulled out to the rear of the recliner, and attach the grip. Connected to the lock mechanism of the recliner, and
One end of the wire is connected to the walk-in lever that operates when the seat back is tilted forward, and the other end of the wire is connected to the lock mechanism of the seat slide device. When you get off, pull the grip to release the lock mechanism of the recliner, and the seat back will fall forward. Then, the walk-in lever is activated to release the seat slide lock device, so that the middle seat, which is always biased forward by the spring of the seat slide device, moves forward along the seat slide device by a predetermined distance. It is the one.

[Problems to be Solved by the Invention] However, according to the recliner having the above-described conventional walk-in mechanism, the assist lever that rotates the walk-in lever is pressed by the force of the spring, so that the assist lock lever is pushed from the slide lock lever. If you do, there is a danger that the whole thing will become large, because it has to be strong.

Moreover, since the walk-in lever is set on the lock lever, the thickness may increase.

Therefore, in view of the above circumstances, the present invention has been made for the purpose of compactly combining a two-stage folding recliner and a walk-in mechanism.

[Means for Solving the Problems] In order to solve the above problems, the present invention fixes a base plate to a seat cushion mounted on a seat slide device, and a lower arm rotatably supported by the base plate has a tooth portion. The lower arm is engageable with and disengageable from the tooth member via an operating lever, and the upper arm rotatably supported by the lower arm is engageable with and disengageable from the lower arm via a catch lever rotated by the operating lever. In a two-stage folding recliner in which the upper arm can be rotated to a substantially horizontal position by inclining at a predetermined angle to and lowering the operation lever downward, the lower arm is provided with a damper that is in pressure contact with the upper arm side, A foot pedal is formed integrally with the operation lever so that it can rotate coaxially with the lower arm. The catch lever is rotatably supported on the lower arm via a first lever which is interlocked with the operation lever so as to be rotatable, and the catch lever is slightly rotated in conjunction with the forward tilting movement of the lower arm. To this end, a lever portion that abuts against the first lever or the base plate is extended to the catch lever, and further, a walk-in lever that rotates in conjunction with the forward tilting motion of the lower arm can rotate coaxially with the lower arm. Secondly supporting the shaft and rotating the walk-in lever in conjunction with the forward tilting motion of the lower arm.
A two-stage folding recliner provided with a walk-in mechanism characterized in that a lever is provided and the walk-in lever and the walk-in mechanism are connected.

[Operation] According to the above configuration of the present invention, when used as a recliner, when the operating member is rotated to rotate the tooth member, the tooth member and the tooth portion of the lower arm are disengaged, The lower arm becomes rotatable, and when the seat back is tilted at a desired angle and then the operating lever is released, the tooth member and the tooth portion of the lower arm mesh again to hold the tilt angle.

Further, when the passenger in the rear seat gets off the vehicle, when the foot pedal is stepped on, the meshing between the tooth member and the lower arm is released in the same manner as described above, and the lower arm is inclined forward by the force of the mainspring spring that biases the lower member to rotate it to a predetermined level. Stop at an angle and
The walk-in lever is rotated by the lever to pull the wire for a predetermined length, and the seat is moved forward along the slide rail.

When the table is used further from this state, when the operation lever is pushed down, the second lever rotates the catch lever and releases the engagement with the upper arm, so that the upper arm becomes rotatable. By rotating the upper arm to the front side to bring it to a substantially horizontal position, a table can be formed.

Furthermore, in order to return the table to the original state, the upper arm is rotated from the horizontal position to the rearward tilted state, and the upper arm engages with the catch lever to integrate the upper arm and the lower arm. And, the first lever re-rotates the walk-in lever to automatically unlock the walk-in mechanism, so that the seat can be moved rearward, and the seat back can be moved to a predetermined position there. If you lean back so that you can sit,
The walk-in lever returns to its original state and the seat is fixed.

[Embodiment] Next, a first embodiment of the present invention will be described with reference to FIGS. 1 to 5. In FIGS. 1 and 2, 1 is a base plate, which is fixed to a seat cushion A of a seat.
Reference numeral 2 is a lower arm, which is a shaft 3 projecting from the base plate 1.
Rotatably supported on the base plate 1 and the shaft 3 on the base plate 1.
Arc-shaped long hole 4 opened on the circumference of a predetermined radius centered on
Rotation is regulated at a predetermined angle via a pin 5 that engages with the. A spring spring 6 is elastically mounted between the shaft 3 and a pin 5 projecting from the base plate 1, and always urges the lower arm 2 to rotate counterclockwise. 8 is seat back B
An upper arm fixed to the lower arm 2 is rotatably supported by the lower arm 2 via a shaft 9, and a lock pin 10 is provided at the lower end portion so as to project. A catch lever 11 is rotatably supported on the lower arm 2 via a shaft 12, and a spring 13 is elastically mounted between the lower arm 2 and the upper arm 8 to urge the upper arm 8 to rotate clockwise. An engaging portion 14 that engages and disengages with the lock pin 10 is formed, and a lever portion that extends integrally
Having 15. Reference numeral 16 denotes an off-lever as a second lever, which is a lever that is rotatably supported by the lower arm 2 via a shaft 17 and forms a curved guide portion 18 that abuts the lock pin 10 and an engaging portion of the pin 5. The parts 19 and 19a are formed and are urged to rotate counterclockwise by a spring 20. Reference numeral 21 is a walk-in lever, which is rotatably supported by the shaft 3 and has a lever portion 22 which is in contact with the lever portion 19 at an upper end portion thereof and a wire portion at a lower end portion thereof.
23 are connected. The wire 23 is housed in a tube 25 that is locked to the base plate 1 with a clasp 24 and extends to the walk-in mechanism C. Reference numeral 26 is an operation lever, which is rotatably supported by the shaft 3 and has a knob 27 attached to one end thereof.
28 are formed, and foot pedals 29 are integrally formed at the other ends. Reference numeral 30 denotes a return spring, which is elastically mounted between the operation lever 26 and the holder plate 31 to urge the operation lever 26 to rotate counterclockwise in the drawing. 32 is a tooth member,
A tooth portion 34 is rotatably supported by a shaft 33 between the base plate 1 and the holder plate 31, and is formed on a lower end portion of the lower arm 2 around the shaft 3 on a circle having a predetermined radius.
It has a tooth portion 35 that meshes with. Reference numeral 36 denotes a pin, which is projected from one end of a swing lever 43 described later, penetrates an arc-shaped long hole 38 formed in the holder plate 31, and engages with a long hole 37 formed in the operation lever 26. There is. Reference numeral 39 is a cam, which is rotatably supported by the base plate 1 via a shaft 40 and is a tooth member.
One end 42 that engages with the recess 41 of 32 is formed. Reference numeral 43 denotes a swing lever, which has a crank shape integrally connected to the cam 39 via the embossing portion 44, and is rotatable integrally with the cam 39 via the shaft 40, and is provided in the long hole 37 of the operation lever 26. Pins to engage
36 is projected from one end. Reference numeral 45 is a link lever as a first lever, one end of which is connected to the swing lever 43 via a shaft 46, and the other end of which is provided with a pin 47 projectingly contactable with the lever portion 15 of the catch lever 11. ing. Reference numeral 48 denotes a link, one end of which is pivotally supported by the link lever 45 and the other end of which is pivotally supported by the holder plate 31.

A damper housing 50 having the shaft 12 of the catch lever 11 fixed as a stopper is fixed to the lower arm 2, and a damper 51 made of an elastic material such as rubber is housed in the damper housing 50, and the damper 51 is attached to the lower arm 2. It can be pressed against the side surface. Then, a line connecting the shaft 12 of the catch lever 11 and each center of the lock pin 10
And a line b connecting the lock pin 10 and the shaft 9 of the upper arm 2
The angle at which and intersect is 90 degrees or less, and the catch lever 11
The opening direction of the lock pin 10 is the same as the escape direction of the lock pin 10.

As shown in FIG. 3, the walk-in mechanism C includes a slide rail 52 fixed to the floor of the vehicle and a bracket 53 fixed to the movable side of the slide rail 52.
And a lock lever 56 urged by a spring 54 on the bracket 53 so as to be able to move forward and backward in a lock groove 55 formed at a fixed interval on the fixed-side bottom surface of the slide rail 52. The other end of the wire 23 is connected via a bracket 57. Reference numeral 58 is a release lever.

The operation of the first embodiment will be described. In the reclining operation, in FIG. 1, when the operation lever 26 is rotated clockwise at a predetermined angle to the upper limit 26a in the figure, the pin 36 causes the swing lever 43 to move. A cam 39 that rotates counterclockwise around the shaft 40 and rotates integrally with the swing lever 43.
Since one end 42 of the tooth engages with the recess 41 of the tooth member 32 to rotate the tooth member 32 clockwise about the shaft 33 thereof, the tooth portions 35 and 34 are disengaged from each other.
It becomes possible to turn around the lower arm 2 and to fall forward due to the force of the mainspring spring 6 that biases the lower arm 2 for rotation. Since it hangs on 8, the lower arm 2 does not fall forward. When the upper arm 8 is tilted backward at a desired angle against the force of the spring 6 and the operating lever 26 is released to return to the original state, the operating lever 26 is rotated counterclockwise by the force of the spring 30. When the pin 36 is moved, the swing lever 43 is rotated in the clockwise direction, and the cam 39 is rotated in the clockwise direction so that one end 42 of the cam 39 is released from the recess 41 of the tooth member 32. By rotating counterclockwise, the tooth portion 35 meshes with the tooth portion 34 of the lower arm 8 and the desired inclination angle thus set is maintained. In this way, the reclining adjustment can be freely set from a predetermined inclination angle P suitable for seating to a substantially horizontal position (full flat) Q rearward.

Next, when the passenger in the rear seat gets off, as shown in FIG. 4, the operation lever 26 is rotated upward or the operation lever 26 is moved upward.
When the pedestrian in the descending seat depresses the foot pedal 29 integrated with the operation lever 26, the operation lever 26 rotates clockwise about the shaft 3, and the engagement of the tooth portions 35 and 34 is performed in the same manner as the reclining operation. When released, the lower arm 2 becomes rotatable about the shaft 3, the lower arm 2 is tilted forward by the force of the spring spring 6, and the pin 5 moves to the left end of the elongated hole 4 to tilt the lower arm 2. Stop. Then, the lever portion 15 of the catch lever 11 abuts the pin 47 of the link lever 45 in conjunction with the forward tilting motion of the lower arm 2, and the catch lever 11 is slightly rotated counterclockwise about the shaft 12, The engagement between the engagement portion 14 and the lock pin 10 is incompletely locked. When the lower arm 2 tilts forward, the lever portion 19 of the off-lever 16 abuts against the lever portion 12 of the walk-in lever 21 and rotates it about the shaft 3 in the counterclockwise direction. The length is pulled to unlock the walk-in mechanism C, and the seat moves forward along the slide rail.

On the other hand, from this state, the seat back B is moved forward, and
When the table is formed in a substantially horizontal position, the link lever 45 is stopped by being pushed by the lever portion 15 of the catch lever 11 and moved downward, whereby the operation lever 26 is set to the upper limit 26a. To position. Therefore, as shown in FIG. 5, when the operation lever 26 is pushed down to the intermediate position 26b, the operation lever 26 rotates about the shaft 3 in the counterclockwise direction by a predetermined angle, and the swing lever 43 moves the shaft 40. The link lever 45 moves upward as the center rotates clockwise, and the pin 47 at the upper end of the link lever 45 moves to the lever portion 15 of the catch lever 11.
, The catch lever 11 rotates counterclockwise about the shaft 12, so that the engagement portion 14 and the lock pin 10 in the incomplete lock state are released, and the upper arm 8 rotates about the shaft 9. It becomes possible. That is, as described above, the catch lever 11 is slightly rotated in advance in conjunction with the forward tilting motion of the lower arm 2 and the crossing angle of the lines a and b is 90 degrees or less, so that the lock pin 10 is Since it is easy to escape from the engaging portion 14, the upper arm 8 is dampered.
The force required to operate the catch lever 11 that has been pressed against the 51 with the operation lever 26 is light. Then, when the seat back B is pushed forward, the upper arm 8 rotates counterclockwise about the shaft 9, the pin 13a for locking the spring 13 engages with the recess 2a of the lower arm 8, and Along with the force of the spring 13, a substantially horizontal position (table) R is held forward.

Then, when the upper arm 8 rotates as described above,
As shown in FIG. 5, since the lock pin 10 escapes from the guide portion 18 of the off-lever 16 pushing the lever portion 22 of the walk-in lever 21, the spring 20 causes the lever portion 19a to move counterclockwise about the shaft 17 in the counterclockwise direction. Rotate until it hits pin 5,
Since the lever portion 19 is separated from the lever portion 22, the walk-in lever 21 is rotated clockwise about the shaft 3 by the force of the spring 54 pulling the wire 23, so that the walk-in mechanism C is locked again and the slide rail 52 is moved. The seat that has moved forwards along the 52 is fixed, and the table-shaped recliner is held stably without rattling.

Then, in order to make the table-shaped recliner as a seat as described above, in the state shown in FIG. 5, the upper arm 8 at the substantially horizontal position R is rotated clockwise about its axis 9, Lock pin 10 is off lever 16
Of the walk-in lever 21 is pressed against the guide portion 18 of the walk-in lever 21 to rotate the off-lever 16 clockwise around the shaft 17 thereof, and the lever portion 19 pushes the lever portion 22 of the walk-in lever 21 again. Rotate counterclockwise, pull the wire 23 again to unlock the walk-in mechanism C, and lock the engagement pin 14 of the catch lever 11 with the lock pin.
10 is engaged and the side portion of the upper arm 8 is a damper
While contacting 51, the pin 13a moves from the recess 2a, and the upper arm 8 and the lower arm 2 are integrally connected. Therefore, when the seat is moved rearward along the slide rails 52 and 52 and the seatback B is pushed backward at a desired angle against the force of the mainspring spring 6, the tooth member is operated in the same manner as the reclining operation described above. 32 and the tooth portions 35 and 34 of the lower arm 2 mesh with each other, and the inclination angle of the seat back B is maintained at the position P.

Next, a second embodiment of the present invention will be described with reference to FIGS. 6 to 8. 6 and 7, 101 is a base plate fixed to the seat cushion A of the seat.
102 is a lower arm, which is a shaft protruding from the base plate 101.
It is rotatably supported by 103 and is rotated at a predetermined angle via a pin 105 that engages with an arc-shaped elongated hole 104 formed on a base plate 101 on a circumference of a predetermined radius centered on the shaft 103. It is regulated. Reference numeral 106 denotes a spring spring, which is elastically mounted between the shaft 103 and a pin 105 protruding from the base plate 101, and always urges the lower arm 102 to rotate counterclockwise. Reference numeral 108 denotes an upper arm fixed to the seat back B. The upper arm 108 is rotatably supported by the lower arm 102 via a shaft 109, and a lock pin 110 is projectingly provided at a lower end portion thereof. 111 is a catch lever, which is rotatably supported by the lower arm 102 via a shaft 112, and a spring 113 is elastically mounted between the lower arm 102 and the shaft 109 so that the upper arm 108 is locked in a clockwise direction. Pin 1
An engaging portion 114 that engages with and disengages from 10 is formed, and has a lever portion 115 that extends integrally. Pin 11 on the lever 115
6, a pin 116 engages with an arcuate long hole 117 projecting from the lower arm 102 around the shaft 112, and a stopper 118 embossed on the base plate 101 when the lower arm 102 tilts forward. Can abut. 119 is second
Plate lever as a lever, upper arm 108
Is coaxial with the lock pin 110 and is connected with a predetermined length at a predetermined angle. A stopper 120 is provided so as to project from the upper arm 108 and can come into contact with the side portion of the lower arm 102 when the upper arm 108 tilts forward. Reference numeral 121 is a walk-in lever, which is rotatably supported on the shaft 103, has a lever portion 122 that abuts against the plate lever 119 at the upper end portion, and has a wire 123 connected at the lower end portion. The wire 123 is a tube 125 that is locked to the base plate 101 with a clasp 124.
And is extended to the walk-in mechanism C. 126
Is an operation lever, which is rotatably supported by the shaft 3, has a lever portion 128 for attaching the knob 127 formed at one end thereof, and has a foot pedal 129 integrally formed at the other end thereof. Reference numeral 130 denotes a return spring, which is elastically mounted between the operation lever 126 and the holder plate 131 to urge the operation lever 126 to rotate counterclockwise in the drawing. 132 is a tooth member, and the base plate 1
A shaft portion 133 is movably supported between 01 and the holder plate 131, and a tooth portion 135 is formed at a lower end portion of the lower arm 102 and meshes with a tooth portion 134 formed on a circle having a predetermined radius around 103. ing. 136 is a pin, which is a sub lever described later.
It projects from one end of 143, penetrates an arc-shaped long hole 138 opened in the holder plate 131, and engages with a long hole 137 formed in the operation lever 126. Reference numeral 139 is a cam, which is rotatably supported by the base plate 101 via a shaft 140, and has one end 142 which is engaged with the recess 141 of the tooth member 132. 143 is a sub-lever, which has a crank shape integrally connected to a cam 139 via an embossed portion 144, is rotatable integrally with the cam 139 via a shaft 140, and has the pin 136 protruding from one end. ing. Reference numeral 146 is a swing lever as a first lever, one end of which is rotatably supported coaxially with the tooth member 132, and the other end of which is formed in a shape capable of contacting the pin 116 of the catch lever 111. . 148 is a long hole, and the swing lever 1
Protrusion 1 that is provided on the operating lever 112 and is provided on the control lever 112.
It is possible to interlock by engaging 49.

The lower arm 102 has a shaft 112 of a catch lever 111.
The damper housing 150, which is fixed as a stopper, is fixed, and the damper 151 made of an elastic material such as rubber is housed in the damper housing 150.
Can be pressed against the lock pin 110 of the upper arm 108.

The walk-in mechanism C is the third one of the first embodiment.
The configuration is the same as shown in the figure.

Explaining the use of the second embodiment, the reclining operation is performed by rotating the operating lever 126 in FIG. 6 upward at a predetermined angle in the clockwise direction up to the upper limit 126a, and the pin 13 is rotated.
6 is a cam 1 that rotates the sub-lever 143 counterclockwise about its shaft 140 and rotates integrally with the sub-lever 143.
The one end 142 of 39 engages with the recess 141 of the tooth member 132 to rotate the tooth member 132 clockwise about the shaft 133 thereof, thereby disengaging the tooth portions 135 and 134, so that the lower arm 102 displaces the shaft 103. It becomes rotatable about its center, and it is designed to fall forward by the force of the mainspring spring 106 that urges the lower arm 102 to rotate.
Since the load is applied to the upper arm 108 by placing the back on the upper arm 108, the lower arm 2 does not fall forward.
Then, when the upper arm 108 is tilted backward at a desired angle against the force of the spring 106 and the operating lever 126 is released to return to the original state, the operating lever 126 is rotated counterclockwise by the force of the spring 130. The pin 136 moves to rotate the sub-lever 143 in the clockwise direction, so that the cam 139 rotates in the clockwise direction and the one end 1
42 escapes from the recess 141 of the tooth member 132, which causes the tooth member 132 to rotate counterclockwise so that its tooth portion 135 meshes with the tooth portion 134 of the lower arm 102, and the set desired inclination angle is maintained. To be done. In this way, the reclining adjustment can be freely set from a predetermined inclination angle P suitable for seating to a substantially horizontal position (full flat) Q rearward.

Next, when the rear seat occupant gets off the vehicle, as shown by the solid line in FIG. 8, the operation lever 126 is rotated upward, but the foot pedal 129 integrated with the operation lever 126 is operated by the seated person in the rear seat. When stepped on, the operation lever 126 rotates clockwise around the shaft 103, the engagement of the teeth 135 and 134 is released in the same manner as the reclining operation, and the lower arm 102 moves the shaft 10.
It becomes rotatable about 3 and the mainspring spring 106
Force lowers the lower arm 2 forward, the pin 105 moves to the left end of the elongated hole 104, and the tilting of the lower arm 102 is stopped.
When the lower arm 102 tilts forward, the plate lever 119 contacts the lever portion 122 of the walk-in lever 121 and rotates it counterclockwise about the width 103, so that the wire 123 is pulled by a predetermined length and the walk is performed. The lock of the in mechanism C is released, and the seat moves forward along the slide rail 52.

On the other hand, from this state, the seat back B is moved forward, and
When the table is formed in a substantially horizontal position, the swing lever 146 is pushed by the pin 116 of the catch lever 111 and remains rotated counterclockwise, whereby the operation lever 126 is positioned at the upper limit 126a. The catch lever 111
The pin 116 of the stopper abuts the stopper 118 and the catch lever 11
1 is slightly rotated counterclockwise to engage the lock pin 110 in a half-locked state. Therefore, when the operating lever 126 is pushed down to the intermediate position 126b, as shown by the phantom line in FIG.
Rotates clockwise and pushes the pin 116 of the catch lever 111, and the catch lever 111 rotates counterclockwise about the shaft 112. Then, the lock pin 110 is completely disengaged from the engaging portion 114, and the upper arm 108 becomes rotatable about the shaft 109. Therefore, when the seat back B is pushed forward, the upper arm 108 rotates counterclockwise about the shaft 109, and the stopper 120 causes the lower arm 102 to rotate.
It comes into contact with the side surface of the plate and stops, and the force of the spring 113 holds the substantially horizontal position (table) R forward.

When the upper arm 108 rotates as described above, the plate lever 11 is moved as shown by the phantom line in FIG.
Since the engagement between 9 and the lever portion 122 of the walk-in lever 121 is released, the walk-in lever 121 is rotated clockwise about the shaft 103 by the force of the spring 58 pulling the wire 123, so that the walk-in mechanism C Is locked again, the seat moved forward along the slide rail 52 is fixed, and the table-shaped recliner is stably held without rattling.

Then, in order to make the recliner tabulated as described above into a seat, the upper arm 108 at the substantially horizontal position R in the state shown by the phantom line in FIG.
Rotate clockwise around 09 to lock pin 11
When 0 is engaged with the engaging portion 114 of the catch lever 111, the upper arm 108 and the lower arm 102 are integrated. Then, when the lower arm 102 is rotated clockwise about the shaft 103, the plate lever 119 rotates the lever portion 122 of the walk-in lever 121 counterclockwise to unlock the walk-in mechanism C. Therefore, the seat can be moved backward with the seat back B standing up.
Therefore, when the seat is moved rearward along the slide rail 52 and the seatback B is pushed backward at a desired angle against the force of the mainspring spring 106, the reclining operation shown in FIG. 6 is performed. Similarly, the tooth member 132 and the tooth portions 135 and 134 of the lower arm 102 mesh with each other,
The tilt angle of the seat back B is held at the position P.

[Effect of the Invention] According to the present invention described above, a recliner that can be used as a table by tilting the seat back forward in a substantially horizontal state, and a walk-in mechanism that moves the seat along the seat slide device in conjunction with the recliner. In addition, since the seat can be securely locked and fixed to the seat slide device again while being turned into a table, the table can be stably held without rattling even while the vehicle is traveling. Of course, since the operating lever and the foot pedal are integrally formed, and the center of rotation thereof is configured coaxially with the rotational rotation of the lower arm, the structure of the recliner to which the foot pedal is added is simplified, and
Since the rotation center of the operation lever is closer to the rear side than the conventional example, the length up to the position of the knob can be increased, and the operation can be performed less than the rotation of the cam, which is advantageous in operation force. Further, since the center of rotation of the catch lever is separated from the center of rotation of the lower arm, the degree of freedom in designing the catch lever is expanded. Furthermore, by pressing the upper arm to the damper provided on the lower arm, the backlash that occurs in both is eliminated, but when the seat back is tilted forward and placed in the horizontal position, the operating force for releasing both becomes heavy. Will end up. Therefore, since the catch lever is made to slightly rotate in advance in conjunction with the forward tilting operation of the lower arm, there is an effect that the force required for releasing is small.

[Brief description of drawings]

FIG. 1 is a front view showing a first embodiment of the present invention, FIG. 2 is a right side view, FIG. 3 is a perspective view of a walk-in mechanism, and FIGS. FIG. 6 is a front view showing a second embodiment of the present invention, FIG. 7 is a right side view thereof, and FIG. A: Seat cushion, B: Seat back, C ...
Walk-in mechanism, 1,101 ... Base plate, 2,102 ...
… Lower arm, 3,103 …… Axis, 8,108 …… Upper arm, 10,110 …… Lock pin, 11,111 …… Catch lever, 13,113 …… Spring, 15,115 …… Lever part, 16,1
19 …… Second lever, 21,121 …… Walk-in lever, 2
3,123 …… Wire, 26,126 …… Operating lever, 29,129 ……
Foot pedal, 32,132 …… Tooth member, 34,35,134,135
...... Tooth, 39,139 …… Cam, 45,146 …… First lever, 51
...... Damper

 ─────────────────────────────────────────────────── ─── Continuation of front page (56) References JP-A-62-29440 (JP, A) Actual application 58-123471 (Actual development 60-30827) Microfilm (JP, U) of which the contents were photographed. )

Claims (1)

[Claims] 1. A base plate is fixed to a seat cushion mounted on a seat slide device, and a lower arm rotatably supported by the base plate is detachable from a tooth member by an operating lever via a tooth portion, and An upper arm rotatably supported by a lower arm is configured to be engageable with and disengageable from the lower arm via a catch lever that is rotated by an operation lever, and the lower arm is inclined forward by a predetermined angle, and the operation lever is also provided. In a two-stage folding recliner in which the upper arm can be rotated in a substantially horizontal position when the lower arm is pushed downward, a damper for making pressure contact with the upper arm side is provided on the lower arm, and a foot pedal is integrally formed on the operation lever to form the lower arm. First pivotally supported coaxially with and operating with the operation lever
The catch lever is rotatably supported by the lower arm via a lever, and abuts on the first lever or the base plate in order to slightly rotate the catch lever in conjunction with the forward tilting movement of the lower arm. A lever portion is extended to the catch lever, and a walk-in lever that rotates in conjunction with the forward tilting motion of the lower arm is pivotally supported coaxially with the lower arm and is also linked to the forward tilting motion of the lower arm. A two-stage folding recliner having a walk-in mechanism, characterized in that a second lever for rotating the walk-in lever is provided, and the walk-in lever and the walk-in mechanism are connected.