JP2017094837A - Vehicular seating stabilization system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicular seating stabilization system which can hold a body of an occupant stably even when a seat is an ordinary vehicular seat and even if external force is applied to the occupant.SOLUTION: The vehicular seating stabilization system, in which a support rod 1 which protrudes upward and perpendicularly by a predetermined length from a seat with a seat cushion SC is provided at a center of a front end part SE of the seat cushion SC, is configured so that an occupant is seated on the seat with the seat cushion SC so as to sandwich the support rod between the whole inner thighs by moving both knees to the support rod 1, so that even if external force is applied to the occupant at a curve of a road or the like during travelling, the waist does not stagger in a lateral direction, the body does not move unduly from a seating position on the seat and a posture of the occupant is not lost, which improves seating stability.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a vehicle seat stabilization device that can stably maintain a seating posture of an occupant.

  Conventionally, in a vehicle seat, wearing a seat belt is obligatory, and only protects the occupant from accidents. There is a problem that the posture tends to become unstable.

For this reason, even if a force is applied from the outside during traveling of the automobile, a vehicle employing a bucket seat that stably holds the occupant's waist and torso is also seen (for example, see Patent Document 1).
This bucket seat has a side support that protrudes extremely high above the left and right sides of the seat cushion seat, compared to a general vehicle seat, and has a structure that enhances the body fixing function by deeply wrapping the waist and trunk of the occupant have.

No. 7-13561 (mainly FIG. 5)

  However, the above-mentioned bucket seat has a good posture stability when seated, but it is very cramped because the side support deeply wraps the waist and torso, it is difficult to raise the waist when leaving the bucket seat, side support when getting on and off Has the problem of getting in the way.

  Therefore, an object of the present invention is to provide a vehicle seat stabilization device that can stably hold a body even if an ordinary seat for a vehicle is used or an external force is applied while the vehicle is running.

In view of the above problems, the seating stabilizing device for a vehicle according to the present invention is characterized in that a support rod that protrudes vertically upward from the seat cushion seat surface by a predetermined length is provided at the center of the front end portion of the seat cushion.
The support rod is provided so as to be able to swing back and forth so as to be able to move in and out from the space provided in the lower part of the seat cushion, or to be extendable so as to be adjustable in height.
Further, the above-knee holding part may be provided on the left and right of the predetermined height position of the support rod, and a grip part may be provided on the upper end of the above-knee holding part.

  In short, according to the present invention, since a support rod that protrudes a predetermined length vertically above the seat cushion seat surface is provided at the center of the front end of the seat cushion, the occupant brings both knees to the support rod on the seat cushion seat surface. By sitting down so that it is sandwiched between the entire inner thighs, the hips do not wobble from side to side even if an external force is applied from the side to the occupant due to curves etc. during both runs, and the body will unnecessarily move from the sitting position on the seat The seating stability that does not move and does not collapse is improved.

  Since the support rod is provided so that it can swing back and forth so that it can be moved in and out of the space under the seat cushion, if the support rod is stored in the space when the support rod is not used, it can be seated without changing from a normal seat. The support rod cannot interfere with getting on and off, and the support rod can be moved up and down by a simple operation of swinging back and forth in a sitting posture, which is very convenient.

  The support collar is adjustable and can be extended and retracted, so that the height of the above-knee restraint can be adjusted to the optimal position according to the thickness of the occupant's knee, and it can be used in the best condition according to the occupant's physique. Is possible.

  Since the above-knee holding part protrudes from the right and left of the predetermined height position of the support rod, the position of the above-knee holding part can be made to correspond to each knee so that the above-knee holding part can hold the occupant above the knee. Therefore, the waist does not float, the lower body can be held more stably, and the seating stability that does not collapse the posture can be further improved.

  A grip is provided at the upper end of the above-knee restraint, so that even if a sudden impact occurs while the vehicle is running, the grip on the knee is easy to reach without changing the arm. It can be grasped instantly, and even if the grip part is always clamped, its seating posture can always be kept stable, so that it does not get tired, and its practical effect is significant.

It is a perspective view of the vehicle seat which shows the use condition of the seating stabilizer for vehicles. It is a front view same as the above. It is a right side view same as the above. It is a bottom view same as the above. It is AA sectional drawing of FIG. It is BB sectional drawing of FIG. It is a right view which shows the use condition of the seating stabilizer for vehicles. It is a left view which shows the retracted state of the seating stabilizer for vehicles. It is a left view which shows the state immediately after the appearance of the seating stabilizer for vehicles.

An embodiment of the present invention will be described below with reference to the drawings.
The vehicle seat stabilizing device according to the present invention is provided with a support rod 1 projecting a predetermined length vertically above the seat cushion SC seat surface at the center of the front end SE of the seat cushion SC in the vehicle seat S. The eaves 1 are provided so as to be adjustable so that the height can be adjusted.

  In the present embodiment, the vehicle seat S is a two-seat seat S at the rear of a vehicle such as a one-box or minivan type passenger car (in the illustrated example, the seat back is omitted and only the seat cushion SC is shown). For the convenience of illustration and explanation, the vehicle seat stabilization device 1 is shown as being equipped only on the seat cushion SC for one person on the side of the seat S for two persons, but if it is an automobile, it is not limited to the above type, It is possible to equip each seat cushion SC.

  The support rod 1 is mainly composed of a column rod 2 provided on the base end side thereof, and a lifting rod 3 that is externally fitted from above the column rod 2 so as to be movable up and down. The support rod 1 can be expanded and contracted depending on the position.

  The column rod 2 is formed of a square pipe having a predetermined length, and its base end portion 2a is short and bent at a right angle, and the swing mechanism portion 4 provided in the space H having the base end portion 2a below the seat cushion SC. By fixing, the support rod 1 is provided so as to be able to swing back and forth so as to be able to protrude and retract from the space H.

  The swinging mechanism portion 4 is installed on a beam member 5 made of a square pipe provided between leg portions SL (only one side is shown) on the left and right side edges of the seat cushion SC below the front portion of the seat cushion SC.

  In the beam member 5, a pair of shaft fixing plates are provided at predetermined intervals in the axial direction of the beam member 5 (same as the width direction of the vehicle seat S) on the left and right rear sides of the portion corresponding to the center of the front end SE of the seat cushion SC. 6 are fixed in parallel.

  A supporting shaft 7 is installed between the shaft fixing plates 6, and a cylindrical rotating shaft 8 is rotatably fitted on the supporting shaft 7. The rotating shaft 8 is a base 9 of the swing mechanism unit 4. The rear end portion is fixed, and the base body 9 is rotatably provided with respect to the support shaft 7.

  As shown in FIGS. 2, 4, and 5, the base 9 is composed of a horizontal top plate 9a whose front half is a horizontally-long rectangular shape, and rectangular side walls 9b that are suspended from the left and right side edges of the top plate 9a. The upper surface of the base end 2a of the support rod 1 (the column rod 2) is fixed to the center of the lower portion of the top plate 9a, and the support rod 1 and the swing mechanism portion 4 are connected.

The rear half of the base 9 is formed by extending a side wall 9b obliquely upward in FIG. 5, and a rotating shaft 8 is installed between the rear end of the base 9 that is the uppermost end of the side wall 9b.
In the rear half of the side wall 9b, the reinforcing plate 10 is installed between the inclined lower edges so that one side of the L-shaped reinforcing plate 10 is along the lower edge.

  In each shaft fixing plate 6, a stopper 11 made of a ball plunger is fixed to the rear of the upper end of the shaft so that its tip protrudes from the inner surface of the shaft fixing plate 6. When the support rod 1 is stored in the space H, the position 11a is made to correspond to the positioning hole 12 drilled at an appropriate position on the rear side of the side wall 9b of the swinging mechanism portion 4, and can be engaged with and disengaged from the positioning hole 12. Thus, when the ball-shaped protrusion 11a is engaged with the positioning hole 12, the retracted state of the support rod 1 in the space H is maintained.

  Further, on each side wall 9b of the swinging mechanism portion 4, a pin 13 is provided to project outward from the upper edge at the rear of the front half portion, and the protruding state from the space H of the support rod 1, that is, the front end portion SE of the seat cushion SC. With the support rod 1 projecting a predetermined length vertically upward from the seat cushion SC seat surface from the center, the pin 13 is engaged with a latch 14 which can be engaged and disengaged to maintain its appearance. It is made like that.

  The latch 14 is provided so as to be able to swing back and forth by pivotally attaching a pivot 15 to the upper end of a flat plate of a predetermined shape, and has a notch 14a capable of receiving the pin 13 at the rear end. Each end of the seat cushion SC is disposed at a suitable position on the front end of the beam member 5 with a predetermined left-right distance so as to be horizontally disposed in front of the beam member 5 below the front end SE of the seat cushion SC and above the top plate 9a. Supported by the bearing 16.

The latch 14 has a tension coil spring 17 (hereinafter, referred to as a notch 14a) engaged with the end position L in the projecting direction X of the support rod 1 on the track of the pin 13 swinging back and forth about the support shaft 7. It is simply called spring 17).
Each end of the spring 17 is hooked to a bracket 16a provided with a pin protruding outward from an appropriate position on the outer surface of the right latch 14 and a right bearing 16.

  In the above-described biased state by the spring 17, the rear end portion 14b below the notch 14a in the latch 14 (hereinafter referred to as a touching portion 14b) is a position immediately before the end of the pin 13 on the track in the appearance direction X. L1 is arranged so that it can be pushed forward by the pin 13, and the pin 13 is against the urging force of the spring 17 at the position L1 immediately before the end when the support rod 1 swings forward in the direction X of appearance. By pushing forward, the latch 14 is once pushed backward, and when the pin 13 reaches the end position L, the latch 14 returns backward by the urging force of the spring 17, and the pin 13 is inserted into the notch 14a. Engage and engage.

  Further, a rod-like operation rod 18 perpendicular to the latch 14 is provided outwardly at the lower part of the outer surface of the left latch 14, and the operation rod 18 is a support rod 1 having a pin 13 engaged with a notch 14a. When the support rod 1 is stored in the space H from the above-described appearance state, the operation rod 18 is manually swung forward against the urging force of the spring 17 to manually move the operation rod 18 from the pin 13 to the notch 14a. The engagement is released by separating the (latch 14).

The elevating rod 3 is formed with a relatively thick-walled T-shaped front view by horizontally projecting an upper knee restraining portion 19 on the upper left and right sides.
The exterior of the elevating rod 3 is integrally formed of a material such as synthetic rubber, elastomer, or relatively soft synthetic resin (see FIG. 5), but the exterior is formed of the same material as in the illustrated example. Alternatively, a synthetic resin or the like made of a material partially different in touch and hardness may be used.

  And in the above-knee restraint part 19, while forming the lower end side which contacts on the passenger | crew's knee N seated on the seat cushion SC seat surface into the curve shape which has a predetermined curvature, the horizontal upper-end surface of each above-knee restraint part 19 Is provided with a gripping portion 20 in the shape of a horizontal round bar for forward use through a concave groove 21 that is recessed so that the front and rear sides thereof are constricted.

  In addition, a square pipe-shaped center frame 22 whose upper end is closed from the lower end to the upper end is installed in the center of the lifting rod 3 and is inserted into the lower end opening of the center frame 22 from the upper end of the support rod 2. The lift rod 3 is movable up and down with respect to the column rod 2.

  Inside the center frame 22, a linear rail 23 having a lip groove shape is installed at the center of the rear wall in the center of the rear wall, and the linear rail 23 is narrowly spaced at the upper part of the back of the column rod 2 fitted in the center frame 22. A belt-like slide plate 24 formed by mounting is provided so as to be slidable.

  In addition, a rectangular hole for exposing the front wall of the center frame 22 is formed at an appropriate position in front of the lifting / lowering rod 3, and a cylinder which is a main body of an index plunger 25 (hereinafter simply referred to as the plunger 25) is formed on the front wall. A distal end surface of 25a is fixed, and a plunger pin 25b (hereinafter simply referred to as a pin 25b) is made to appear and retract in the center frame 22 through a perforation provided in the front wall from the distal end surface.

  Then, by inserting and engaging the pin 25b of the plunger 25 in any one of the plurality of through holes 26, 26a... The heel 2 is fixed to a predetermined height position, the support heel 1 is adjustable so that the height can be adjusted, and the above-knee restraining portions 19 are arranged to project from the left and right of the predetermined height position of the heel 1.

  The plunger 25 is a locking device for the elevating rod 3 and urges a pin 25b that can be protruded and retracted from the distal end surface of the cylinder 25a in a protruding direction by a spring (not shown) built in the cylinder 25a. The pin 25b is projected and retracted by a front / rear operation of a knob 25c provided to be freely movable back and forth.

Then, by pulling the knob 25c against the urging force of the spring, the pin 25b is once immersed in the cylinder 25a, and the knob 25c is released so that the pin 25b slides on the front wall surface of the column rod 2. The lifting / lowering rod 3 is moved up and down so that the pin 25b is automatically inserted into the desired through holes 26, 26a... By the urging force.
The support rod 1 is stored in the space H in the lowest limit state (the most contracted state of the support rod 1) of the lifting rod 3 in which the pin 25b is inserted into the lowermost through hole 26e.

In the vehicle seat stabilizing device configured as described above, the support rod 1 is stored in the space H below the seat cushion SC in a non-use state (see FIG. 8).
In this retracted state, the pin 25b of the plunger 25 is inserted into the through hole 26e, so that the above-mentioned most contracted state of the support rod 1 is maintained, and the support rod 1 is substantially inverted in the space H. The ball-shaped protrusion of the stopper 11 provided on the shaft fixing plate 6 in the positioning hole 12 provided at the rear of the side wall 9b of the swinging mechanism part 4 connecting the base end part 2a of the support rod 1 Since 11a is engaged, the retracted state in which the support rod 1 is inclined as described above is maintained.

In using the vehicle seat stabilizer, after first sitting on the seat cushion SC, the most contracted support rod 1 is made to appear at the center of the front end SE of the seat cushion SC.
This can be achieved by reaching out to the space H below the seat cushion SC and pulling the support rod 1 forward from the space H with the grip portion 20.
Due to the pulling force at this time, the positioning hole 12 in the engaged state and the ball-shaped protrusion 11a of the stopper 11 are separated from each other, and the support rod 1 swings forward (appearing direction X) about the support shaft 7.

  Then, the pin 13 of the base end 2a of the support rod 1 reaches the contact projection 14b at the position L1 immediately before the end in the projecting direction X and moves the latch 14 forward against the urging force of the spring 17. By pushing, the latch 14 is once pushed forward, and when the pin 13 reaches the end position L on the track, the latch 14 swings back by the urging force of the spring 17, and the pin 14 is inserted into the notch 14a. 13 is received and engaged (see FIG. 9).

  As a result, the rearward swinging of the support rod 1 in the storage (space H) direction is suppressed, and the support rod 1 is placed between the knees N of the occupant seated on the seat cushion SC with the center of the front end SE of the seat cushion SC. The appearance state arranged upright is maintained.

  Next, by pulling the knob 25c of the plunger 25 against the urging force of the spring, the pin 25b inserted and latched in the through hole 26e is temporarily immersed in the cylinder 25a, and the lifting rod 3 is shifted upward. Later, the knob 25c is released, and the elevating rod 3 is raised along the column 2 so that the pin 25b slides on the front wall surface of the column 2.

When the pin 25b is aligned with the through-hole 26d immediately above the through-hole 26e during the raising of the lifting / lowering rod 3, the pin 25b is automatically inserted into the through-hole 26d by the urging force, and the lifting / lowering rod 3 is at its height. The position is maintained.
At this time, if the position of the above-knee holding portion 19 is lower than the occupant's knee N, the knob 25c is operated again to adjust the height of the elevating rod 3 so that the occupant brings both knees N to the support rod 1 When closed so as to be pinched, each of the above-knee holding portions 19 is positioned on each knee N.

Since the occupant is seated on the seat cushion SC so that both knees are brought to the support rod 1 and sandwiched between the entire inner thighs, the external force from the side is applied to the occupant by a curve or the like during both runs. Even if it is applied, the waist does not sway from side to side, the body does not move from the sitting position on the seat surface, and the seating stability that does not collapse the posture can be improved.
Further, since the upper knee restraining portion 19 restrains the occupant's knees N, the waist does not float and the lower body can be held more stably.

  Further, since the grip 20 is provided at the upper end of the above-knee restraint 19 on the knee N that does not extend the arm so much that the hand can reach, even if a sudden impact occurs during traveling of the vehicle, the grip 20 Can be grasped instantaneously without changing the seating posture, and even if the grip portion 20 is always clamped, the seating posture can always be kept stable, so that fatigue does not occur.

In order to store the support rod 1 in the space H, the knob 25c of the plunger 25 is pulled to pull down the elevating rod 3 along the column rod 2, the pin 25b is inserted into the through hole 26e, and then the operation rod 18 is held. The latch 14 swings forward against the urging force of the spring 17 to disengage the notch 14 from the pin 13 and swings the support rod 1 into the rear space H.
Then, when the positioning hole 12 provided in the side wall 9b of the swinging mechanism portion 4 is engaged with the ball-shaped protrusion 11a of the stopper 11 disposed in the back of the space H, the storage of the support rod 1 is completed.

1 Support rod
19 Knee restraint
20 Grip part H space
SC seat cushion
SE front edge

Claims (5)

  A seating stabilizer for a vehicle, wherein a support rod is provided at a center of a front end portion of the seat cushion so as to project a predetermined length vertically above the seat cushion seating surface.   The seating stabilizer for a vehicle according to claim 1, wherein the support rod is provided so as to be able to swing back and forth so as to be able to protrude and retract from a space provided in a lower portion of the seat cushion.   The seating stabilizer for a vehicle according to claim 1 or 2, wherein the support rod is provided so as to be extendable and retractable so that the height can be adjusted.   4. The vehicle seating stabilizer according to claim 1, wherein an upper knee restraining portion is provided on the right and left sides of the predetermined height of the support rod.   The vehicle seating stabilizer according to claim 4, wherein a grip portion is provided at an upper end of the above-knee holding portion.

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