JP4100778B2 - Automotive seat structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a structure of a seat mounted on an automobile, and particularly to a structure of a reclining mechanism portion attached to the seat.
[0002]
[Problems to be solved by the invention]
In general, most of passenger seats mounted on automobiles, in particular, passenger and passenger seats of passenger cars are equipped with a reclining mechanism.
As shown in FIG. 7, the seat 1 equipped with the reclining mechanism has a reclining lever 2 attached to one side of the seat cushion 1 </ b> A, and the seat back 1 </ b> B of the seat 1 is operated by operating the reclining lever 2. The angle can be adjusted to a desired angle.
[0003]
That is, when the reclining lever 2 is pulled up, a stopper (not shown) that engages with a gear attached to the base end portion of the seat back 1B to lock the seat back 1B at an arbitrary angle is released. Becomes rotatable around the base end. After the angle of the seat back 1B is adjusted to a desired angle, when the lifting of the reclining lever 2 is released, the stopper engages with the gear on the seat back 1B side, and the angle at which the seat back 1B is adjusted. It is locked to.
[0004]
In most cases, the reclining lever 2 of such a reclining mechanism is disposed on the side of the seat cushion 1A on the door side of the vehicle body for convenience of operation.
[0005]
However, in a seat equipped with a conventional vehicle reclining mechanism as described above, when the vehicle body receives a strong impact from the side due to a side collision or the like and the door enters the room, the entering door reclines. Interfering with the lever 2, as shown in FIG. 8, the reclining lever 2 slips along the outer surface of the deformed reclining cover 3 while deforming the reclining cover 3 covering the reclining mechanism inward. It may go up.
[0006]
In this way, when the reclining lever 2 is lifted regardless of the will of the occupant, the stopper that locks the seat back 1B is released, and the occupant sitting on the seat 1 suddenly moves backward with the seat back 1B. The passenger may not be able to exert the protective function of the occupant by the seat, or may occupy the occupant of the rear seat.
[0007]
Further, in the seat equipped with the conventional automobile reclining mechanism as described above, as shown in FIG. 8, an opening 3A for attaching the cover is formed on the side of the reclining cover 3 facing the reclining lever 2. Has been.
[0008]
However, since the opening 3A is formed in the reclining cover 3, as shown in FIG. 9, when the reclining lever 2 is operated, the occupant's finger H is operated from the opening 3A of the reclining cover 3. There is a risk of getting inside the reclining cover 3.
The present invention has been made to solve the problems of the automobile seat equipped with the conventional reclining mechanism as described above.
[0009]
In other words, according to the present invention, when a side impact is applied to the vehicle body, the reclining lever of the reclining mechanism attached to the seat slides up by interfering with a part of the vehicle body, thereby releasing the locked state of the reclining mechanism. It is a first object to provide a vehicle seat structure that can prevent such a situation.
Furthermore, a second object of the present invention is to provide an automobile seat structure that can prevent an occupant's finger performing an operation from entering the reclining mechanism during a reclining operation.
[0010]
[Means for Solving the Problems]
In order to achieve the first object, the seat structure for an automobile according to the first invention is such that a reclining lever protrudes outward from a reclining cover attached to a side portion of the seat cushion, and the reclining lever is pulled up. In a vehicle seat structure having a reclining mechanism that releases the locked state of the seat back, when the reclining cover is pushed inward at a position facing the reclining lever across the reclining cover inside the reclining cover. A bracket member is provided that engages with an inner wall portion of the reclining cover to lock the reclining cover.
[0011]
In the vehicle seat structure according to the first aspect of the invention, the vehicle body receives a strong impact from the side due to a side collision or the like, and the vehicle body structural portion such as a door enters the vehicle and interferes with the reclining lever. When the reclining lever is pressed against the side of the reclining cover when it is pushed into the center of the vehicle, the bracket member comes into contact with the inner wall of the reclining cover when the reclining cover is deformed and tilted toward the inside of the vehicle body. This prevents the reclining cover from being further deformed toward the center of the vehicle body.
[0012]
Therefore, according to the first aspect of the present invention, it is possible to prevent the inclined surface from being formed on the outer wall surface of the reclining cover, whereby the reclining lever is lifted upward, and the locked state of the reclining mechanism is released. Can be prevented.
[0013]
In order to obtain the above effect, it is only necessary to add a bracket member to the conventional configuration, so that the cost is low and the function of the reclining mechanism is not affected.
[0014]
In order to achieve the first object, the vehicle seat structure according to the second invention is provided at a position higher than the reclining lever at the seat back lock position in addition to the structure of the first invention. The hook part which protrudes to the reclining cover side is formed so that it may be located in this.
[0015]
In the vehicle seat structure according to the second aspect of the invention, the pressing force of the reclining lever toward the center of the vehicle body is strong, and the reclining lever is formed on the bracket member when the reclining lever enters through the reclining cover. Engaged with the hook portion.
Therefore, according to the second invention, it is possible to reliably prevent the reclining lever from being lifted upward and the reclining mechanism being unlocked.
[0016]
In order to achieve the first object, the automobile seat structure according to the third invention is reclining toward the upper side in the lower part of the hook part of the bracket member in addition to the structure of the second invention. An inclined portion that is inclined so as to increase the distance from the cover is formed.
[0017]
In the vehicle seat structure according to the third aspect of the invention, when the reclining lever breaks through the reclining cover and enters the inside, the reclining lever is guided to the hook portion by the inclined portion formed on the bracket member.
Therefore, according to the third invention, the reclining lever that has entered the inside of the reclining cover is guided to the hook portion by the inclined portion of the bracket member and is securely locked, so that the reclining lever slides upward. It is possible to reliably prevent the reclining mechanism from being unlocked.
[0018]
In order to achieve the second object, an automobile seat structure according to a fourth invention is formed at a position where the bracket member faces the reclining lever of the reclining cover in addition to the configuration of the first invention. It is characterized by being arranged at a position covering the opening for attaching the cover.
In the automobile seat structure according to the fourth aspect of the present invention, the cover mounting opening formed in the reclining cover is covered with the bracket member.
[0019]
Therefore, according to the fourth aspect of the invention, it is possible to prevent the occupant's hand fingers operating the reclining lever from entering the inside of the reclining cover through the opening during normal operation of the reclining lever.
[0020]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment that is considered to be most suitable for the present invention will be described in detail with reference to the drawings.
[0021]
1 to 4 show an example in an embodiment of an automobile seat structure according to the present invention.
1 to 4, a gear 11 is fixed to a base end portion of a seat back side hinge 10A fixed to a back frame (not shown) of the seat back, and the seat back side hinge 10A can be freely rotated on the gear 11. By engaging the stopper 12 attached to the seat cushion side hinge 10B supported by the seat back side hinge 10A, the seat back side hinge 10A is locked so as not to rotate.
[0022]
Then, when the reclining lever 13 rotatably attached to the seat cushion side hinge 10B is pulled up, the engagement between the stopper 12 connected to the reclining lever 13 and the gear 11 is released, and the seat back side hinge 10A, that is, the seat back is freely rotatable.
[0023]
A hinge bracket 14 slidably mounted on the slide rail SR is disposed on the center side of the vehicle body with respect to the seat back side hinge 10A and the seat cushion side hinge 10B, and the seat cushion side hinge 10B is mounted on the hinge bracket 14. Is attached to support the seat back.
[0024]
A reclining cover 15 is fixed to the outside of the vehicle body with respect to the seat back side hinge 10A and the seat cushion side hinge 10B by being screwed to the hinge bracket 14 so as to cover the reclining mechanism from the outside. ing.
[0025]
At this time, the reclining lever 13 is projected from the through-hole 15A formed in the reclining cover 15 to the outer surface of the reclining cover 15 as shown by a chain line in the figure, and is gripped by the projected tip of the reclining lever 13. 13A is attached.
[0026]
As shown in FIGS. 2 and 3, the reclining cover 15 has a cover mounting opening 15 </ b> B at a portion facing the grip 13 </ b> A.
On the side of the hinge bracket 14 facing the outside of the vehicle body, as shown in an enlarged view in FIG. 4, a plate-shaped lever shift prevention bracket is provided at a position facing the grip 13 </ b> A across the reclining cover 15 of the hinge bracket 14. 16 is firmly fixed so as to extend upward from the upper end edge of the hinge bracket 14.
[0027]
As can be seen from FIG. 2, this lever slip-up preventing bracket 16 has an area that completely covers the rear of the opening 15 </ b> B formed in the reclining cover 15.
[0028]
As can be seen from FIG. 3, the bracket 16 for preventing the lever from moving upward retreats to a portion located above the upper end edge of the hinge bracket 14 in the middle so that the distance from the reclining cover 15 increases toward the upper side. An inclined portion 16A is formed.
[0029]
An upright portion 16B extending in parallel with the reclining cover 15 is formed on the upper side of the inclined portion 16A of the bracket 16 for preventing the lever from rising, and the direction of the reclining cover 15 is formed at the upper edge of the upright portion 16B. A front end portion 16Ca of the catcher portion 16C in which a horizontally extending flange-like catcher portion 16C is formed is located immediately behind the upper end portion of the reclining cover 15, as can be seen from FIG.
[0030]
In the above-described automobile seat structure, the vehicle body receives a strong impact from the side due to a side collision or the like, and a structural part of the vehicle body such as a door enters the vehicle and interferes with the grip 13A. When pushed into the lever, the bracket 16 for preventing the lever from moving up prevents the reclining cover 15 from being deformed and the reclining lever 13 to rise along the outer surface thereof to release the stopper of the reclining mechanism.
[0031]
That is, when the reclining lever 13 is pushed against the side of the reclining cover 15 by being pushed by a door or the like entering the vehicle, the upper part of the reclining cover 15 is deformed and tends to tilt toward the inside of the vehicle body. First, the tip end portion 16Ca of the catcher portion 16C of the lever slip-up preventing bracket 16 comes into contact with the inner wall surface of the upper end portion of the reclining cover 15 to prevent the reclining cover 15 from being further deformed toward the center of the vehicle body. .
[0032]
Accordingly, it is possible to prevent the inclined surface from being formed on the outer wall surface of the reclining cover 15, thereby preventing the reclining lever 13 from being lifted upward and releasing the locked state of the reclining mechanism.
[0033]
Further, the pressing force of the reclining lever 13 toward the center of the vehicle body is strong, and when the reclining lever 13 enters through the reclining cover 15, the reclining lever 13 is moved by the inclined portion 16 </ b> A of the bracket 16 for preventing the lever from rising. It is guided to the catcher portion 16C and engaged with the lower portion of the catcher portion 16C.
[0034]
This prevents the reclining lever 13 from being lifted upward and releasing the locked state of the reclining mechanism.
Further, in this vehicle seat structure, since the opening 15B formed in the reclining cover 15 is covered with the bracket 16 for preventing the lever from moving upward, the occupant's hand operating the reclining lever 13 during normal operation of the reclining lever 13 Are prevented from entering the inside of the reclining cover 15 from the opening 15B.
[0035]
5 and 6 show another example in the embodiment of the vehicle seat structure according to the present invention.
In the vehicle seat structure in this example, the lever slip-up preventing bracket 16 is configured separately from the hinge bracket 14 in the above example, whereas the lever slip-up preventing bracket is integrally formed with the hinge bracket. It is what.
[0036]
That is, as shown in FIGS. 5 and 6, the lever slip-off preventing bracket 16 ′ is extended upward from the center of the upper end of the hinge bracket 14 ′ disposed inside the reclining cover 15. 'Is formed integrally with.
[0037]
The bracket 16 'for preventing the lever from moving upward includes the inclined portion 16A' that recedes in the direction in which the distance from the reclining cover 15 increases, as in the bracket 16 for preventing the lever from moving upward, and the inclined portion 16A '. An upright portion 16B ′ extending in parallel with the reclining cover 15 from above and a flange-like catcher portion 16C ′ extending horizontally from the upper end edge of the upright portion 16B ′ in the direction of the reclining cover 15 are formed. The tip portion 16Ca ′ of the catcher portion 16C ′ is located immediately behind the upper end portion of the reclining cover 15, as can be seen from FIG.
[0038]
In the vehicle seat structure in this example, similarly to the vehicle seat structure in the above example, the vehicle body receives a strong impact from the side due to a side collision or the like, and the structural part of the vehicle body such as a door enters the vehicle and the grip 13A When the reclining lever 13 is pushed toward the center of the vehicle body due to the interference, the lever displacement prevention bracket 16 ′ rises along the outer surface while the reclining lever 13 deforms the reclining cover 15 and reclines. This prevents the mechanism from being unlocked.
[0039]
That is, when the reclining lever 13 is pushed against the side of the reclining cover 15 by being pushed by a door or the like entering the vehicle, the upper part of the reclining cover 15 is deformed and tends to tilt toward the inside of the vehicle body. First, the tip end portion 16Ca ′ of the catcher portion 16C ′ of the bracket 16 ′ for preventing the lever from rising is brought into contact with the inner wall surface of the upper end portion of the reclining cover 15, and the reclining cover 15 is further deformed toward the center of the vehicle body. To prevent.
[0040]
Accordingly, it is possible to prevent the inclined surface from being formed on the outer wall surface of the reclining cover 15, thereby preventing the reclining lever 13 from being lifted upward and releasing the locked state of the reclining mechanism.
[0041]
Furthermore, when the reclining lever 13 has a strong pressing force toward the center of the vehicle body and the reclining lever 13 has entered through the reclining cover 15, the reclining lever 13 is inclined 16A of the bracket 16 'for preventing the lever from moving upward. It is guided to the catcher portion 16C 'by' and engaged with the lower portion of the catcher portion 16C '.
[0042]
This prevents the reclining lever 13 from being lifted upward and releasing the locked state of the reclining mechanism.
Further, in this vehicle seat structure, since the opening 15B formed in the reclining cover 15 is covered with the bracket 16 for preventing the lever from moving upward, an occupant who operates the reclining lever 13 during normal operation of the reclining lever 13 Is prevented from entering the inside of the reclining cover 15 from the opening 15B.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing an example in an embodiment of the present invention.
FIG. 2 is a front view showing a positional relationship between a reclining lever and a lever slip-up preventing bracket of the same example.
FIG. 3 is a side sectional view of the same example.
FIG. 4 is a front view showing a mounting state of the bracket for preventing the lever from moving up in the same example.
FIG. 5 is a side sectional view showing another example in the embodiment of the present invention.
FIG. 6 is a front view showing a configuration of a lever slip prevention bracket in the same example.
FIG. 7 is a perspective view showing a conventional automobile seat.
FIG. 8 is a side sectional view showing a conventional vehicle seat structure.
FIG. 9 is a side sectional view showing a conventional vehicle seat structure.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Seat 1A ... Seat cushion 1B ... Seat back 13 ... Reclining lever 13A ... Grip 14, 14 '... Hinge bracket 15 ... Reclining cover 15B ... Opening 16, 16' ... Bracket for preventing lever deviation (bracket member)
16A, 16A '... Inclined part 16C, 16C' ... Catcher part (hook part)

Claims (4)

In a vehicle seat structure provided with a reclining mechanism in which a reclining lever protrudes outward from a reclining cover attached to a side portion of the seat cushion, and the locked state of the seat back is released by pulling up the reclining lever.
A bracket member for engaging the inner wall of the reclining cover and locking the reclining cover when the reclining cover is pushed inward is provided at a position facing the reclining lever across the reclining cover inside the reclining cover. An automobile seat structure characterized by being made. The automotive seat structure according to claim 1, wherein a hook portion is formed on the bracket member so as to protrude to a reclining cover side so as to be positioned higher than a reclining lever at a seat back lock position. The vehicle seat structure according to claim 2, wherein an inclined portion is formed in a lower portion of the hook portion of the bracket member so that an interval between the bracket member and the reclining cover increases toward the upper side. The vehicle seat structure according to claim 1, wherein the bracket member is disposed at a position covering a cover mounting opening formed at a position facing the reclining lever of the reclining cover.

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