JPH09262148A - Double sided lock reclining device used for car seat - Google Patents

Abstract

(57) [Abstract] (Correction) [PROBLEMS] To make it possible to confirm the locked state of the reclining devices on both sides, and to avoid abnormal noise generated in the both-side locking mechanism when the vehicle travels. A double-sided lock mechanism (22) has outer and inner interlocking pins (23,24) rotatably supported by outer and inner brackets (13,14), and outer and inner interlocking pins (2).
The outer and inner toothed lock plates 20 and 21 supported by the outer and inner brackets so as to be non-rotatably supported on the outer and inner brackets by the sector gears 18 and 18 of the outer and inner brackets, respectively. Outer and inner cams 25 and 26 to be hung on and off from 19, and one end thereof is play-coupled in a rotational direction to one of the outer and inner interlocking pins 23 and 24,
Interlocking rod 2 which connects the other end to the other of the outer and inner interlocking pins so that both interlocking pins can interlock with each other.
7 and a lever 28 attached to one of the outer and inner interlocking pins 23, 24.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION This invention relates to a double sided lock reclining device for use in automobile seats.

[0002]

2. Description of the Related Art Normally, a double-sided lock reclining device used in an automobile seat where a seat back is adjustable in angle uses a double-sided lock mechanism. The double-sided locking mechanism locks the outer reclining device because the interlocking rod inserts outer and inner interlocking pins at both ends to prevent rotation in the rotation direction, and the outer interlocking pin is operated by the operation lever. In this state, it is not possible to confirm that the inner reclining device is locked, and when the car runs, abnormal noise is generated due to misalignment at both the outer and inner interlocking pins and the interlocking rod. There was a problem.

[0003]

SUMMARY OF THE INVENTION The object of the present invention is to use in a vehicle seat where the locked state of the reclining devices on both sides can be confirmed and further, when the vehicle runs, an abnormal noise generated in the both side locking mechanism is avoided. To provide a double-sided lock reclining device.

[0004]

Means corresponding to the object and the operation thereof
A double-sided locking mechanism is supported by the outer and inner interlocking pins rotatably supported by the outer and inner seat cushion hinge brackets, and the outer and inner interlocking pins that are rotationally fixed to the outer and inner interlocking pins. Outer and inner cams that engage and disengage the outer and inner toothed lock plates pivotally supported on the inner seat cushion hinge bracket to and from the outer and inner seat back hinge bracket sector gears; An interlocking rod, one end of which is play-joined to one of the outer and inner interlocking pins in a rotational direction, and the other end of which is non-rotatably coupled to the other of the outer and inner interlocking pins so that both interlocking pins can interlock with each other. , With reclining adjuster lever attached to one of its outer and inner interlocking pins And, when the lever is operated in the locking direction, the outer toothed locking plate is swung in the locking direction by the play coupling to move the outer seat back hinge bracket to the sector. The gear is touched and at the same time its inner toothed lock plate is locked on its outer side unless its inner tooth is locked on its inner seat back hinge bracket to its sector gear end to end, locking both sides on its inner side The locked state is taken, at which time the lever is positioned midway and the locked state is confirmed. Then, in that state, a load is applied to the seat back to lock both sides thereof.

[0005]

DESCRIPTION OF SPECIFIC EXAMPLES Hereinafter, the double-sided lock reclining device used in the automobile seat of the present invention will be described based on the specified and illustrated specific examples. FIGS. 1 to 3 are side views of a passenger car. Fig. 10 shows a specific example 10 of a double-sided lock reclining device used for a vehicle seat of the present invention applied to a seat, in which the double-sided lock reclining device 10 includes a double-sided lock mechanism 22 for an outer seat cushion and an inner seat cushion. Outer and inner interlocking pins 23 and 24 that are rotatably supported by the hinge brackets 13 and 14, and the outer and inner interlocking pins 23 and 24 are supported by being prevented from rotating in the rotational direction, and the outer and inner sheets thereof. .Outer and inner toothed rollers swingably supported by cushion hinge brackets 13 and 14 Click plate 20, 21 that the outer and inner seat back hinge bracket 15,
Outer and inner cams 25, 26 which are disengaged from the sixteen sector gears 18, 19, one end of which is rotationally idled to one of the outer and inner interlocking pins 23, 24 and the other end of which is outer and An interlocking rod 27 that is non-rotatably coupled to the other of the inner interlocking pins 23 and 24 to enable both interlocking pins 23 and 24 to interlock with each other, and a reclining adjuster attached to one of the outer and inner interlocking pins 23 and 24. And a lever 28.

More specifically, the outer and inner interlocking pins 23 and 24 connect the outer and inner collars 29 and 30 having the claws 31 and 32 on their outer peripheral surfaces to prevent rotation in the rotational direction, and the interlocking rods thereof. Reference numeral 27 denotes a pipe rod which has a play notch 33 at one end and a mating notch 34 at the other end, and one of its outer and inner collars 29, 30 is inserted into the play notch. Three
3 with its claw 31 of one collar 29, and at its other end its outer and inner collars 29, 30.
The other end of the collar 30 is inserted into the notch 34, and the claw 32 of the other collar 30 is fitted. And in this case, the outer and inner collars 29, 30 are
The outer and inner interlocking pins 23, 24 are serration-coupled to prevent rotation in the rotation direction, and the claw 3
1, 32 are formed in a key shape.

In addition, both sides of the lock reclining
In the device 10, 11 is an outer reclining device, 12 is an inner reclining device, 17 is a hinge pin, 35 is a hinge return spring,
And 36 is a lever spring.

Therefore, when the lever 28 is operated in the locking direction, the outer toothed locking plate 20 swings in the locking direction by the play coupling, as shown in FIG. Is brought into contact with the sector gear 18 of the outer seat back hinge bracket 15 and, at the same time, with the inner toothed lock plate 21 thereof.
As shown in FIG. 3B, the inner seat back hinge bracket 16 is brought into contact with the sector gear 19 between the tips of the teeth and both the reclining devices 1 are connected.
1, 12, the outer reclining device 11 is unlocked unless the inner reclining device 12 is locked. At that time, the lever 28 is positioned halfway to confirm the locked state. Then, in that state, a load is applied to the seat back of the side seat, and the outer and inner reclining devices 11 and 12 are locked. Further, in this double-sided locking mechanism 22, the interlocking rod 27 is provided with its outer and inner collars 29, 30 and its outer and inner interlocking pins 2 are provided.
Since the passenger cars are centered on the wheels 3, 24, the noise generated in the both-side lock mechanism 22 is avoided when the passenger car travels.

FIG. 4 partially shows another embodiment 40 of a two-sided lock reclining device for use in a motor vehicle seat of the invention applied to its side seats of the aforementioned passenger car, the two sides of which are shown. In the lock reclining device 40, a double-sided locking mechanism 41 is used, and the double-sided locking mechanism 41 is provided in the double-sided locking mechanism 22 utilized in the previous double-sided locking reclining device 10. Also, the interlocking rod 27 is deformed and configured.

In the double-sided lock mechanism 41, the inner interlocking pin 42 is provided with a claw 43 on the outer peripheral surface, and the interlocking rod 4 is also provided.
4 is made in the pipe rod, has one end non-rotatably connected to its outer interlocking pin 23, and has a play notch 4 at the other end.
5, the inner interlocking pin 42 is inserted, and the claw 43 is fitted into the play notch 45. in this case,
The claw 43 is formed in a key shape, and the interlocking rod 44 is serrated at one end thereof to the outer interlocking pin 23 so as to be prevented from rotating in the rotation direction. The other end is loosely connected to the inner interlocking pin 42 by fitting.

FIGS. 5 and 6 partially illustrate yet another embodiment 50 of a double-sided lock reclining device for use in a motor vehicle seat of the present invention applied to its side seats of the aforementioned passenger vehicle. In this double-sided lock reclining device 50, a double-sided lock mechanism 51 is used, and the double-sided lock mechanism 51 is used.
In the double-sided lock mechanism 22 utilized in the double-sided lock reclining device 10, the inner side interlocking pin 24 and the interlocking rod 27 are modified.

In the double-sided locking mechanism 51, the inner interlocking pin 52 has a double chamfered portion 53, and the interlocking rod 54 is made of a pipe rod, and one end thereof is non-rotatably coupled to the outer interlocking pin 23. Then, the other end is crushed into the oval opening 55 and is loosely connected to the double chamfered portion 53 of the inner interlocking pin 52 in the rotational direction. In this case, the interlocking rod 54 is serrated at one end thereof to the outer interlocking pin 23 to prevent the interlocking rod from rotating in the rotational direction, and as shown in FIG. 6, the oval opening 55 and the double chamfered portion thereof. A clearance for play is provided with 53 to press the other end into the oval opening 55, and
The other end is fitted to the double chamfered portion 53, and is play-joined in a rotational direction to the outer and inner interlocking pins 23 and 52.

FIGS. 7-9 partially illustrate yet another embodiment 60 of a double-sided lock reclining device for use in a vehicle seat of the present invention as applied to the aforementioned passenger vehicle side seats. In this double-sided lock reclining device 60, a double-sided lock mechanism 61 is used, and the double-sided lock mechanism 61 is used.
In the double-sided lock mechanism 22 utilized in the double-sided lock reclining device 10, the outer and inner interlocking pins 23 and 24 and the interlocking rod 27 are modified.

In the double-sided lock mechanism 61, the outer and inner interlocking pins 62 and 63 allow the outer and inner cams 25 and 26 to be serration-coupled to one end side, and the fitting steps 64 and 65 and the double chamfered portion to the other end side. 66,67
And an interlocking rod 68 is made on the pipe rod and utilizes both ends for fitting openings 69, 70, and furthermore, both ends are oval detents 71, 72 in cross section.
And the outer and inner interlocking pins 62 and 63 are loosely connected in a rotational direction to the two chamfered portions 66 and 67. In this case, the interlocking rod 68 is the same as that shown in FIGS.
, A clearance for play is provided between the detent portions 71, 72 and the double-chamfered portions 66, 67, and both end sides of the detent portions 71, 7 have an oval cross section.
Pressed to 2 and its detents 71,72
Is fitted to the two chamfered portions 66 and 67, and is play-joined to the outer and inner interlocking pins 62 and 63 in the rotational direction.

As will be apparent from the specific embodiments of the present invention described above with reference to the drawings, one skilled in the art to which the present invention pertains will appreciate the subject matter of the present invention. Is the nature of the invention (na
), and are readily embodied in other aspects that are objectively perceived as inherent in them. Of course, the content of the present invention corresponds to the subject of the invention (be commensu).
rate with) and essential for the invention.

[0016]

Benefits of the Invention As can be seen from the above, the double sided locking reclining device used in the vehicle seat of the present invention has a double sided locking mechanism rotatably supported on the outer and inner seat cushion hinge brackets. And the outer and inner interlocking pins, and the outer and inner interlocking pins that are supported by being locked in the rotational direction in the rotational direction, and the outer and inner seat cushion hinges.
Outer and inner cams that engage and disengage outer and inner toothed lock plates that are pivotally supported on the brackets on their outer and inner seat back hinge bracket sector gears, and one end on their outer and inner interlocking An interlocking rod that is play-coupled to one of the pins in the rotational direction, and the other end is non-rotatably coupled to the other of the outer and inner interlocking pins so that both interlocking pins can interlock with each other, and the outer and inner interlocking pins thereof. Since it includes a reclining adjuster lever attached to one side, the double-sided lock reclining device used in the automobile seat of the present invention, when the lever is operated in the locking direction, the outer toothed lock The plate is swung in the direction that it locks by the amount of play coupling and the outer seat back hinge The bracket is in contact with its sector gear and at the same time its inner toothed lock plate is in contact with its inner seat back hinge bracket in its sector gear end-to-end, locking both sides inside Unless its outer side is unlocked, the lever is positioned halfway to confirm the locked state, and then reclining devices on both sides lock by applying a load to the seat back. In addition, the outer and inner interlocking pins and the interlocking rods are aligned with each other to avoid abnormal noise generated in the lock mechanism on both sides of the vehicle when the vehicle travels, and as a result, it is very effective for the reclining seat of the vehicle. Useful and practical.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a specific example of a double-sided lock reclining device used for an automobile seat of the present invention applied to a side seat of a passenger car.

FIG. 2 is an exploded perspective view showing a double-sided lock mechanism.

FIG. 3 is an operation explanatory view showing the operation of the double-sided lock reclining device.

FIG. 4 is an exploded perspective view partially showing another specific example of the double-sided lock reclining device used for the automobile seat of the present invention applied to the side seat of a passenger car.

FIG. 5 is an exploded perspective view partially showing still another specific example of the double-sided lock reclining device used for the automobile seat of the present invention applied to the side seat of a passenger car.

FIG. 6 is a cross-sectional view showing the relationship between the inner interlocking pin and the interlocking rod.

FIG. 7 is an exploded perspective view partially showing still another specific example of the double-sided lock reclining device used for the automobile seat of the present invention applied to the side seat of a passenger car.

FIG. 8 is a cross-sectional view showing a relationship between an outer interlocking pin and an interlocking rod.

FIG. 9 is a cross-sectional view showing a relationship between an inner interlocking pin and an interlocking rod.

[Explanation of symbols]

 22 both side lock mechanism 23 outer interlocking pin 24 inner interlocking pin 25 outer cam 26 inner cam 27 interlocking rod 28 reclining adjuster lever 29 outer collar 30 inner collar 31 claw 32 claw 33 play notch 34 notch notch

Claims (5)

[Claims] 1. A double-sided locking mechanism is supported by outer and inner interlocking pins that are rotatably supported by outer and inner seat cushion hinge brackets, and rotation-rotatably supported by the outer and inner interlocking pins. And its outer and inner seat cushion hinges
Outer and inner cams that engage and disengage outer and inner toothed lock plates that are pivotally supported on the brackets on their outer and inner seat back hinge bracket sector gears, and one end on their outer and inner interlocking An interlocking rod that is play-coupled to one of the pins in the rotational direction, and the other end is non-rotatably coupled to the other of the outer and inner interlocking pins so that both interlocking pins can interlock with each other, and the outer and inner interlocking pins thereof. A double-sided lock reclining device used in car seats that includes a reclining adjuster lever attached to one side. 2. The outer and inner interlocking pins lock the outer and inner collars having the claws on the outer peripheral surface in the rotational direction, and the interlocking rod is formed on the pipe rod and has a free play at one end. The notch is fitted with a killing notch at the other end, and one of its outer and inner collars is inserted at its one end and the claw of that one collar is fitted in its play notch, and at the other end its outer and inner collars. The double-sided lock reclining device used for the automobile seat according to claim 1, wherein the other of the inner collars is inserted and the notch of the other collar is fitted to the notch of the other collar. 3. The other of the outer and inner interlocking pins,
Equipped with claws on the outer peripheral surface, and its interlocking rod is
Made on a rod, one end is non-rotatably coupled to one of its outer and inner interlocking pins, and a play notch is formed at the other end to insert the other of its outer and inner interlocking pins into that play notch. The double-sided lock reclining device used in the automobile seat according to claim 1, wherein the claws are fitted together. 4. The other of the outer and inner interlocking pins,
A double chamfer is also provided, the interlocking rod of which is made into a pipe rod, one end of which interlocks with one of its outer and inner interlocking pins, and the other end of which is crushed into an oval opening to the outside thereof. A two-sided lock reclining device for use in a motor vehicle seat according to claim 1, wherein said two inner chamfer pins are rotationally play-locked to the other two chamfered portions thereof. 5. The outer and inner interlocking pins are provided with double chamfers, and the interlocking rods are made into pipe rods, crushing both ends into oval openings to form the outer and inner interlocking pins thereof. A two-sided lock reclining device for use in a motor vehicle seat as claimed in claim 1, wherein said two-sided chamfer is rotationally idled.