JP6040849B2 - Vehicle seat - Google Patents

Description

  The present invention relates to a vehicle seat. Specifically, the present invention relates to a vehicle seat including side support portions on both sides of a seat cushion and a top plate portion of a seat back.

2. Description of the Related Art A vehicle seat such as a vehicle seat generally includes a seat cushion that serves as a seat for a seated person and a seat back that supports the back of the seated person. The center position in the width direction of the seat back and seat cushion is the top plate part that supports the seating load of the seated person, and seats on both sides of the seat back for holding (improvement of holdability) when turning the vehicle Side support parts are formed so as to protrude in the direction of the side part of the person.
By the way, there is a difference in the physique of the seated person. For this reason, a side support adjustment mechanism is provided that can adjust the width interval in the width direction of the side support parts arranged on both sides of the top board part according to the physique of the seated person.
Further, the top plate portion is provided with a support position adjustment mechanism that can adjust the support position in the seating load direction of the seated person according to the body size of the seated person.
The side support adjustment mechanism and the support position adjustment mechanism enable a seating posture on the seat corresponding to the physique of the seated person.

JP 2009-165735 A

  By the way, the side support adjustment mechanism and the support position adjustment mechanism described above are individually adjusted for each mechanism according to the physique of the seated person, and there is a problem that the adjustment work is troublesome.

  Thus, the present invention was devised in view of the above problems, and the problem to be solved by the present invention is to adjust by operating the side support adjustment mechanism and the support position adjustment mechanism provided in the seat in conjunction with each other. It is intended to facilitate the work.

In order to solve the above problems, the vehicle seat according to the present invention takes the following means.
The premise structure of the invention which is the basis of the vehicle seat according to the present invention is that the seating person is seated on the top plate part in the center position as viewed in the width direction for supporting the seated person when seated, and on both sides of the top board part. The side support portion is disposed so as to protrude in the side position direction of the seated person so as to be able to support the side portion.
In such a configuration, according to the present invention, the side support portion is provided with a side support position adjusting mechanism that can adjust a width interval between the support portions on both sides, and the top plate portion is provided with a seated person's seat. A support position adjustment mechanism that can change the support position in the seating load direction at the time, and the side support position adjustment mechanism and the support position adjustment mechanism are configured to operate in conjunction with each other. .

  According to the present invention described above, the side support position adjustment mechanism and the support position adjustment mechanism are configured to operate in conjunction with each other. As a result, both mechanisms can be adjusted simultaneously in conjunction with the occupant's physique, and the adjustment work becomes easy.

The present invention preferably takes the following form.
That is, it is preferable that the support position adjustment mechanism provided in the top plate part is a mechanism that changes the spring force of the planar body part that supports the seated person.
In such a case, the lumbar support position adjustment mechanism can have a relatively simple configuration.

In addition, the linkage between the side support position adjustment mechanism and the support position adjustment mechanism is in a direction to weaken the spring force of the planar body part in the support position adjustment mechanism when the width interval between the side support parts is widened. Is preferred.
Generally, the width interval between the side support parts is widened when the size of the seated person is large. When the size of the seated person is large, it is desirable that the support position of the seated person's back by the support position adjusting mechanism is a relatively rear position. For this reason, by weakening the spring force of the planar body part in the support position adjustment mechanism, the support position can be made relatively rearward, and the interlocking adjustment of both mechanisms is a preferred adjustment according to the physique of the seated person be able to.

  By employing the above-described means according to the present invention, the side support adjustment mechanism and the support position adjustment mechanism provided in the seat are operated in conjunction with each other, thereby facilitating the adjustment work according to the physique of the seated person.

It is a perspective view showing a car seat of an embodiment of the present invention. It is a perspective view which shows the side support adjustment mechanism with which the inside of the seat back of this embodiment is provided, and a support position adjustment mechanism. FIG. 3 is a sectional view taken along line III-III in FIG. 1.

  EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated using drawing. In this embodiment, a case of an automobile seat will be described as an example of a vehicle seat. In an automobile seat, a seat provided with a side support portion is often set to a so-called separate type seat such as a driver seat or a passenger seat. In this embodiment, the case where the side support part is formed on the seat back will be described as an example. In addition, the display of the direction in subsequent description has shown the direction at the time of seeing from the seated person in case a seated person seats on the seat. In addition, R or L attached to the tail of the code is used to distinguish and designate parts existing on the left and right sides, R indicates a part at the right side position, and L indicates a part at the left side position. ing.

FIG. 1 shows an overall configuration of an automobile seat according to the present embodiment. An automobile seat (hereinafter also simply referred to as a seat) 10 includes, as a basic configuration, a seat cushion 12 that serves as a seat for a seated person, a seat back 14 that serves as a backrest, and a headrest 16 that supports the head. It is configured. The seat back 14 is connected to a rear position of the seat cushion 12 by a reclining mechanism (not shown), and can be tilted reclining in the front-rear direction by the reclining mechanism. The headrest 16 is disposed at an upper position of the seat back 14.
A substantially central position in the width direction of the seat back 14 is formed as a top plate portion 18 having a substantially flat surface, and supports the back of the seated person. Side support parts 20 are formed so as to protrude forward at the left and right side positions of the top board part, and can support the side of the seated person. Accordingly, the side support part 20 is formed to protrude from the both side positions of the top board part 18 toward the side position of the seated person. However, in order to facilitate the seating, the width interval between the two is widened slightly toward the front. Is formed.

FIG. 2 shows the internal structure of the seat back 14. A back frame 22 as a member forming a skeleton of the seat back 14 is disposed inside the seat back 14. The back frame 22 includes a pipe-shaped upper frame 24 disposed in a gate shape at an upper position, plate-shaped side frames 26 disposed on both lower sides of the upper frame 24, and lower positions of the left and right side frames 26R and 26L. It consists of a rod-shaped lower pipe 28 that connects between them.
Brackets 30 and 32 are fixedly attached to the upper and lower positions of the left and right side frames 26, respectively, and a rotation support shaft 34 is rotatably supported by the brackets 30 and 32. The rotation support shaft 34 is arranged in the vertical direction inside the side frame 26. A motor 36 is attached to the upper end portion of the rotation support shaft 34, and the rotation support shaft 34 is rotated by the motor 36. The motors 36 are arranged on both the left and right sides, but the right and left motors 36R and 36L are controlled to rotate in reverse. That is, when the right side motor 36R rotates clockwise, the left side motor 36L is controlled to rotate counterclockwise.

  A support panel 38 and a planar body portion 46 are attached to the shaft portion of the rotation support shaft 34. Details of the mounting configuration are shown in FIG. 3 is a cross-sectional view of the right half of the seat back 14 shown in FIG. As shown in FIG. 3, the support panel 38R arranged on the right side is arranged inside the right side support part 20R. The side support portion 20 is formed by covering an internal urethane pad 42 with a seat cover 44 such as a skin. The support panel 38 is formed of a resin plate-like rigid member, and is disposed so as to support the back portion of the urethane pad 42. As shown in FIG. 3, the base end portion of one end of the support panel 38 is fixed and attached to the rotation support shaft 34 by integral molding. As a result, the support panel 38 is swung to the left and right about the rotation support shaft 34 by the rotation support shaft 34, and accordingly, the entire side support portion 20 is also swung. Since the left and right side support parts 20R and 20L swing in opposite directions, the width interval between the left and right side support parts 20R and 20L can be increased or decreased. The mechanism for widening or narrowing the width interval between the left and right side support portions 20R, 20L in the present embodiment described above is the side support position adjusting mechanism referred to in the present invention. Note that the tip of the support panel 38 is formed to be curved in order to alleviate the feeling of foreign matter when the seated person is seated.

As shown in FIGS. 2 and 3, the cloth-like planar body portion 46 is disposed on the top plate portion 18 of the seat back 14 so as to be stretched over the left and right rotation support shafts 34 </ b> R and 34 </ b> L. The top plate portion 18 is formed in a form in which an internal urethane pad 42 is covered with a seat cover 44 such as an outer skin, similarly to the side support portion 20 described above. The cloth-made planar body portion 46 is disposed on the back portion of the urethane pad 42 and serves as a holding member that supports the support load on the back portion of the seated person received by the top plate portion 18 when the seated person sits on the seat 10. ing.
The cloth-like planar body portion 46 of the present embodiment is a component that can be elastically deformed by spring. The planar body portion 46 is attached to the rotary support shaft 34 by the integral molding when the support panel 38 is attached to the rotary support shaft 34 by integral molding. As a result, by rotating the left and right rotation support shafts 34R and 34L in different directions, the cloth-like planar body portion 46 stretched between the left and right rotation support shafts 34R and 34L is in a tensioned state or a relaxed state. Thus, the support position of the seated person in the front-rear direction (sitting load acting direction) by the planar body portion 46 changes, and the support position can be adjusted.
For example, as shown in FIG. 3, when the right rotation support shaft 34R is rotated clockwise and the left rotation support shaft 34L (not shown) is rotated counterclockwise, the planar body portion 46 is loosened. The support position in the front-rear direction becomes a relatively rear side position. Conversely, when the left and right rotation support shafts 34R, 46L are rotated in the reverse direction, the planar body portion 46 is in a tensioned state, and the support position in the front-rear direction is relatively the front position.
The mechanism for adjusting the support position in the front-rear direction of the seated person by the cloth-like body portion 46 in the present embodiment described above is the support position adjustment mechanism referred to in the present invention. Note that the planar body portion 46 and the support panel 38 described above may be attached to the rotation support shaft 34 separately by a fixing means such as adhesion, without being integrally formed.

  According to the above embodiment, the planar body portion 46 constituting the support position adjustment mechanism and the support panel 38 constituting the side support position adjustment mechanism are both attached to the same rotation support shaft 34. It is configured to operate together in conjunction with each other. As shown in FIG. 3, when the right rotation support shaft 34R is rotated in the clockwise direction, the side support part 30 is actuated to widen the width interval between the side support parts, and the planar body part 46 is loosened. The operation relationship is such that the support position is relatively the rear position. In this case, the left and right motors 36R and 36L are interlocked and controlled so that the left rotation support shaft 34R rotates counterclockwise.

  In FIG. 3, reference numeral 48 denotes a back panel, which covers the entire rear surface of the seat back 14 to improve the appearance. Reference numeral 50 denotes a hook spring string that is hooked between the outer end portion of the side support portion 20 and the side frame 26 to position the side support portion 20.

Next, the operation will be described.
If the seated person has a relatively large physique, the right motor 36R is rotated in the clockwise direction and the left motor 36L is rotated in the counterclockwise direction. As a result, the left and right support panels 38R and 38L are operated in the direction of widening the width interval, and the width intervals of the left and right side support portions 20R and 20L can be made wide according to the physique. Further, the planar body portion 46 is in a relaxed state, and the seated person's support position is set to a relatively rear position, and a seated person with a large physique is relatively submerged in the top plate portion 18 of the seat back 14. can do.
Next, in the case of a seated person having a relatively small physique, the right motor 36R is rotated counterclockwise and the left motor 36L is rotated clockwise. As a result, the left and right support panels 38R and 38L are operated in the direction of narrowing the width interval, so that the width intervals of the left and right side support portions 20R and 20L can be made narrow. In addition, the planar body portion 46 is in a tensioned state, and the seated person's support position is set as a relatively forward position, and a seated person with a small physique is placed in a relatively forward position without sinking into the top plate portion 18 of the seat back 14. Can be supported.

As mentioned above, although embodiment of this invention was described, this invention can be implemented with various forms other than the said embodiment.
For example, in the above-described embodiment, the case where the seat back includes the side support portion has been described. However, the present invention is applicable to the case where the seat cushion includes the side support portion.
Moreover, in the said embodiment, although the planar body site | part was the thing of the structure body made from cloth which can be elastically deformed by spring, it should just be the thing of a flexible structure, even if it is not elastically deformable by spring.
Moreover, in the said embodiment, although the planar body part was an example arrange | positioned in the one part location of a seat back, it can also be arrange | positioned and comprised in the whole surface of a seat back or a seat cushion.
In addition, various forms of the interlocking configuration of the side support position adjustment mechanism and the support position adjustment mechanism can be considered.

10 Automotive seats (vehicle seats)
DESCRIPTION OF SYMBOLS 12 Seat cushion 14 Seat back 16 Headrest 18 Top plate part 20 Side support part 22 Back frame 24 Upper frame 26 Side frame 28 Lower pipe 30 Bracket 32 Bracket 34 Rotation support shaft 36 Motor 38 Support panel 42 Urethane pad 44 Seat cover 46 Planar body part 48 Back panel 50 Hook spring string

Claims (3)

When the seated person is seated, the top plate part in the center position as viewed in the width direction supporting the seated person and the side part of the seated person can be supported on both sides of the top plate part so as to protrude in the side part position direction of the seated person. A vehicle seat including a side support portion disposed;
The side support part is provided with a side support position adjustment mechanism that allows the width interval between the support parts on both sides to be adjusted in a wide and narrow manner,
The top plate part is provided with a support position adjustment mechanism that can change the support position in the seating load direction when the seated person is seated,
The side support position adjustment mechanism has a support panel as an operating member of the mechanism,
The support position adjustment mechanism has a flexible component part as an operation member of the mechanism,
The support panel and the working base end of the flexible component part are both attached to the same rotation support shaft,
The vehicle seat according to claim 1, wherein the side support position adjustment mechanism and the support position adjustment mechanism operate in conjunction with rotation of the rotation support shaft . The vehicle seat according to claim 1,
The flexible structural body part as the operation member of the support position adjusting mechanism is a planar body part, and the support position adjusting mechanism provided in the top plate part has a spring force of the planar body part supporting the seated person. A vehicle seat characterized by a mechanism for changing. The vehicle seat according to claim 2,
The linkage between the side support position adjustment mechanism and the support position adjustment mechanism is such that when the width interval between the side support parts is widened, the spring force of the planar body part in the support position adjustment mechanism is weakened. A vehicle seat.

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