JP2005289134A - Vehicular seat - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To mark a hip point on a seat cushion and/or a seatback without impairing any design property or seating feeling of a trial seat in a manufacturing (trial) stage of a seat. <P>SOLUTION: In the vehicular seat 10 having a seat cushion 20 and/or a seatback 40, the seat cushion 20 and/or the seatback 40 have pad parts 21, 41. Marking parts 30, 50 capable of grasping the positions of hip points 35, 55 through at least one of the visual sense and the tactile sense are provided on the pad parts 21, 41 or a surface of a seat cover 60 covered on the pad parts 21, 41. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a vehicle seat. Specifically, the present invention relates to a vehicle seat that indicates a hip point of a seat cushion and / or a seat back. Particularly preferably, the present invention relates to a prototype vehicle seat.

Generally, in designing a vehicle seat, an appropriate hip point (hereinafter referred to as a target HP) serving as a reference position at the time of design is determined in advance. In the design / production (prototype) stage of the seat, the traits of each part are determined so that the seating position of the seated person becomes the target HP.
Specifically, at the stage of manufacturing the pad portion, confirmation of the consistency of the shape and the like is repeatedly performed by placing the pad portion in the middle of trial production on the seat frame. Thereafter, after each part is manufactured and assembled as a prototype sheet, the sheet cover is covered and put into an actual use state and subjected to an evaluation test. Specifically, a torso (dummy doll) or a person is seated on a seat covered with a seat cover, and the seating pressure distribution is measured or the seating feeling is confirmed. If the appropriate seating pressure distribution is not reproduced by this measurement, the shape or material of each part is appropriately changed or corrected based on the measurement result. In this way, a seat with a good seating feeling is produced while repeating design changes.
In addition, as this type of related technology, for example, there is one disclosed in Patent Document 1 below.
JP-A-7-143922

  However, conventionally, since the reference (target HP) has not been marked on the product itself, there is a case where the positional relationship between each part of the seat is shifted in the process of making the vehicle seat. Further, when a layout for the peripheral parts of the vehicle seat is examined by mounting a mock (imitation) in the vehicle interior, the same deviation may occur. Furthermore, after confirming the actual HP position of the vehicle seat after making a prototype, it must be measured several times using a large facility such as a three-dimensional measuring device and the average value must be measured. A great deal of time and effort was required.

  The present invention was devised as a solution to the above-described problems, and the problem to be solved by the present invention is to impair the design and seating feeling of the prototype sheet at the stage of production (prototype) of the sheet. Without marking the hip point on the seat cushion and / or the seat back.

In order to solve the above problems, the vehicle seat of the present invention takes the following means.
First, a first invention of the present invention is a vehicle seat including a seat cushion and / or a seat back, the seat cushion and / or the seat back each having a pad portion, and covering the pad portion or the pad portion. The surface of the seat cover is provided with marking means capable of grasping the position of the hip point through at least one of visual and tactile sensations.
Here, as a state grasped visually on the seat cover, for example, when the hip point is visually marked on the surface of the seat cover by a marker having a light emitting property (fluorescence or phosphorescence) and grasped Is mentioned. Moreover, as a state grasped through the tactile sense, there is a case where the hip point can be grasped by touching the surface of the seat cover with a fingertip or the like according to the character of the marking means.
The state in which the marking means is provided on the pad portion or the surface of the seat cover covered with the pad portion refers to a state in which the marking means does not protrude from the surface of the pad cover or the seat cover covered with the pad portion. .
According to the first invention, the hip point in the seat cushion and / or the seat back is grasped by the marking means. Specifically, the hip point is indicated and grasped by the indication means through at least one of visual and tactile sensations on the pad portion or the surface of the seat cover covered with the pad portion. Moreover, since the marking means is provided on the pad portion or the surface of the seat cover covered with the pad portion, the covering state of the pad portion or the seat cover covered with the pad portion is kept flush.

Next, according to a second aspect of the present invention, in the first aspect described above, the marking means is provided in the pad portion, the hole portion formed in the pad portion, and the hip point embedded in the hole portion. And a marking member that marks the tip with a convex shape at the tip.
According to the second invention, the hole portion is formed in the pad portion. Furthermore, a marking member having a convex shape is provided inside the hole portion, and the hip point is marked by the tip of the convex shape. That is, the pad portion is formed with an uneven shape that does not protrude from the surface. Therefore, the hip point is marked on the surface of the pad part through visual and tactile sense (tactile sense by light pressing force). Alternatively, it is indicated on the surface of the seat cover through a tactile sense (tactile sense by a light pressing force).

Next, according to a third aspect of the present invention, in the second aspect described above, the marking member of the marking means is formed of a material having rigidity higher than that of the pad portion, and has a predetermined dimension from the surface side portion of the pad portion. Only the pad portion is integrally joined while being embedded in the inside of the hole portion.
According to the third aspect of the invention, since the marking member is made of a material having higher rigidity than the pad portion, the hip point is marked more clearly on the surface of the pad portion or the seat cover through the sense of touch. Further, since the marking member is integrally joined to the pad portion in a state of being embedded in the hole portion by a predetermined dimension from the surface side portion of the pad portion, the pad portion is subjected to a load due to sitting. Deforms (sinks). That is, even when seated, the marking member does not protrude from the surface of the pad portion or the seat cover.

Next, according to a fourth aspect of the present invention, in any one of the first to third aspects described above, at least the hip point front-rear position is indicated on the seat cushion, and at least the hip point is indicated on the seat back. The vertical position is indicated.
According to the fourth aspect, at least the front and rear positions of the hip point are marked on the seat cushion by the marking means. In addition, at least the upper and lower positions of the hip points are marked on the seat back. That is, when only the front / rear position of the hip point is marked on the seat cushion, the left / right position (the left / right position of the seated person) is not limited. Even when only the vertical position of the hip point is marked on the seat back, the horizontal position is not limited.

The present invention can obtain the following effects by taking the above-described means.
First, according to 1st invention of this invention, a hip point can be grasped | ascertained through at least one of visual sense and tactile sense to a seat cushion and / or a seat back. That is, by providing a certain mark indicating the hip point on the seat cushion and / or the seat back, the hip point of the torso and the hip point of the pad portion can be easily grasped.
Further, since the hip point is marked on the pad portion or the surface of the seat cover covered with the pad portion, the design and seating feeling of the vehicle seat are not impaired.
Furthermore, according to the second aspect of the present invention, the concavo-convex shape formed on the surface of the pad portion can more clearly indicate the hip point without impairing the design and seating feeling of the vehicle seat. .
Furthermore, according to the third aspect of the present invention, the design and the seating feeling of the vehicle seat can be prevented from being impaired while the hip point is marked more clearly.
Furthermore, according to the fourth aspect of the present invention, in addition to the indication of the front / rear position and the vertical position of the hip point, the left / right position of the hip point can be indicated as necessary. Further, when the left and right positions of the hip points are indicated, this can be indicated on either one of the seat cushion and the seat back. Therefore, the overlapping sign can be omitted, and the labor and cost can be suppressed.

Embodiments of the best mode for carrying out the present invention will be described below with reference to the drawings.
1 to 3 show an embodiment of a vehicle seat 10 of the present invention. 1 is a perspective view showing an outline of a vehicle seat 10, FIG. 2 is a view showing a seated state of a torso 80 in the side view of FIG. 1, and FIG. 3 is an enlarged cross-sectional view of a main part on the seat cushion 20 side in FIG. It is.

As shown in FIG. 1, the vehicle seat 10 of the present embodiment is provided on the pad portion 21 (see FIG. 3) of the seat cushion 20 and is configured to indicate the front and rear and left and right positions of the hip point 11 described later. The hip point 55 (hereinafter referred to as HP 35 of the pad portion) and the hip point 55 (shown in FIG. 3) which is provided on the pad portion 41 (see FIG. 3) of the seat back 40 and which indicates the vertical and horizontal positions of the hip point 11 Hereinafter, the configuration has a pad portion HP55). Here, the HPs 35 and 55 of the pad portion are determined at the design stage of the vehicle seat 10 based on a hip point 11 (hereinafter referred to as a target HP 11) that is an appropriate seating position for the seated person of the vehicle seat 10. It is a set position. Accordingly, when the design of the pad part HP 35, 55 is changed by a test or the like, the position is corrected according to the character of the pad part 21, and in this case, the HP 35, 55 of the corrected pad part is corrected. 55 will be displayed.
In the present embodiment, since the marking units 30 and 50 have the same configuration, both 30 and 50 will be described with reference to FIG. 3 showing the marking unit 30. . The pad portions 21 and 41 will be described with reference to FIG. 3 shown for the pad portion 21.

Specifically, the vehicle seat 10 is configured as follows.
First, as well shown in FIG. 3, the pad portions 21 and 41 of the seat cushion 20 and the seat back 40 (see FIG. 2) have surface-side portions 23 and 43 at positions where HP 35 and 55 of the pad portion are located. Marking portions 30 and 50 are provided in the formation surfaces 22 and 42. Here, the marking parts 30 and 50 correspond to the marking means of the present invention. Specifically, the marking portions 30 and 50 are formed in a hole portion having an appropriate depth by drilling holes in the formation surfaces 22 and 42 of the surface side portions 23 and 43 of the pad portions 21 and 41. 31 and 51, and marking members 32 and 52 embedded in the hole portions 31 and 51 and integrally joined to the pad portions 21 and 41, respectively.
Specifically, the marking members 32 and 52 are made of a resin material having rigidity higher than that of the pad portions 21 and 41 made of a urethane material, and have convex shapes 33 and 53 that become narrower toward the tip. As shown in FIG. 3, the marking members 32 and 52 are embedded so as to form constant gaps 34 and 54 between the front ends thereof and the surface portions 23 and 43 of the pad portions 21 and 41. In this state, the pad portions 21 and 41 are integrally joined.
That is, the inside of the formation surfaces 22 and 42 of the pad portions 21 and 41 (inside the hole portions 31 and 51) has a certain gap 34 and 54 between the surface side portions 23 and 43 and the marking member. 32 and 52 are joined in an embedded state, and uneven shapes are formed in the formation surfaces 22 and 42 of the surface side portions 23 and 43 of the pad portions 21 and 41. And HP35,55 of a pad part is marked by the front-end | tip of this convex shape 33,53.

Therefore, for example, in the stage before the pad covers 21 and 41 are covered with the sheet cover 60 (the laminate material 61 is layered), the uneven shapes formed on the surface side portions 23 and 43 are visually observed. The HP 35 and 55 of the pad portion can be grasped. Further, the HPs 35 and 55 of the pad part can be grasped by touching the surface-side portions 23 and 43 with a fingertip or the like by the above-described uneven shape.
Moreover, when the seat covers 60 are covered with the pad portions 21 and 41, the marking portions 30 and 50 are not visually grasped (see FIGS. 1 and 2). That is, since the marking portions 30 and 50 are provided in the formation surfaces 22 and 42 of the surface side portions 23 and 43 of the pad portions 21 and 41, their positions are concealed by covering the seat cover 60. (The seat cover 60 is flush). However, in this case, if the pad portions 21 and 41 are searched by lightly applying a pressing force to the covered seat cover 60, the uneven portions formed on the surface side portions 23 and 43 of the pad portions 21 and 41 The HPs 35 and 55 of the pad portion can be grasped tactilely. Specifically, since the marking members 32 and 52 are made of a material having rigidity higher than that of the pad portions 21 and 41, the marking is made clear by the difference in the sense of touch.

  Further, as described above, the marking members 32 and 52 are integrally joined to the pad portions 21 and 41 at the positions having the constant gaps 34 and 54 from the surface side portions 23 and 43 of the pad portions 21 and 41. Yes. Thereby, when the seated person or the torso 80 is seated on the vehicle seat 10, the marking members 32 and 52 act so as to sink (deform) together with the pad portions 21 and 41. Therefore, when the marking members 32 and 52 and the pad portions 21 and 41 are both deformed, the gap between the tips of the convex shapes 33 and 53 of the marking members 32 and 52 and the surface-side portions 23 and 43 of the pad portions 21 and 41. Therefore, the tips of the convex shapes 33 and 53 of the marking members 32 and 52 do not come into contact with the seated person or the torso 80. In other words, even in the covered state of the seat cover 60, the design features and the seating of the vehicle seat 10 are provided by having the function of marking the HPs 35 and 55 of the pad portion while the marking portions 30 and 50 protrude from the seat cover 60. It works so as not to impair the feeling.

Then, the usage method of a present Example is demonstrated. According to the vehicle seat 10 of the present embodiment, for example, when the manufactured pad portions 21 and 41 are placed on a seat frame (not shown) in the production (prototype) stage of each part of the vehicle seat 10, A reference point (HP 35, 55 in the pad portion) at the time of the alignment can be marked. In addition, when performing an evaluation test of the assembled vehicle seat 10 (measurement of seating pressure distribution during seating, etc.), the seating position when a person or torso 80 (dummy doll) is seated on the vehicle seat 10 is indicated. You can also
Here, the target HP 11 is a bracket 71 (fixed always arranged at a fixed position with respect to the seat frame) arranged for the reclining mechanism 70 of the vehicle seat 10 as well shown in FIGS. 1 and 2. The rotation center 72 of the member is set as a reference point, and is set as a fixed coordinate position relatively spaced from the reference point.
Below, the usage method at the time of performing the evaluation test of the manufactured vehicle seat 10 is demonstrated.

  First, the manufactured pad portions 21 and 41 are placed on the seat frame. Here, it is sufficient that an attachment shape (not shown) serving as a guide for attachment to the seat frame can be formed on the back surfaces of the pad portions 21 and 41, but it may be difficult in some cases. Therefore, the displacement between the two is corrected by moving the HPs 35 and 55 of the pad part marked on the surface side parts 23 and 43 of the pad parts 21 and 41 so as to align with the target HP 11. The parts 21 and 41 can be installed at appropriate positions. Specifically, the HPs 35 and 55 of the pad portion may be fixed in accordance with a certain coordinate position relatively separated from the same reference point as the target HP 11 (the rotation center 72 of the bracket 71). .

  Next, the seat cover 60 is mounted on the seat cushion 20 and the seat back 40 in a state where the pad portions 21 and 41 are installed at appropriate positions of the seat frame (a state where the HPs 35 and 55 of the pad portion match the target HP 11). Coating. At this time, if a tensile force applied to cover the seat cover 60 is applied unevenly (biased), the pad portions 21 and 41 are locally deformed, and the HP portions 35 and 55 of the pad portion are changed from the target HP 11. There may be a gap. Therefore, after the seat cover 60 is covered, first, the HP 35 and 55 of the pad portion are tactilely detected by applying a light pressing force to the seat cover 60. At this time, since the marking members 32 and 52 are made of a material having rigidity higher than that of the pad portions 21 and 41, the HPs 35 and 55 of the pad portion can be easily found by touch. If the HPs 35 and 55 of the searched pad part deviate from the target HP 11, the sheet cover 60 is re-tensioned to cope with it, and the pad parts 21 and 41 are arranged at appropriate positions. Do it like this. In addition, since the marking members 32 and 52 that mark the HPs 35 and 55 of the pad portions are provided in the formation surfaces 22 and 42 of the pad portions 21 and 41, they do not protrude from the seat cover 60. That is, the covering state of the seat cover 60 can be finished to be flush with each other.

According to the above-described procedure, each part of the vehicle seat 10 is assembled in a state where the parts are arranged at appropriate positions. Next, the torso 80 is seated on the assembled vehicle seat 10. Specifically, the torso's hip point 81 (hereinafter, torso's HP 81) is seated so as to match the target HP 11. That is, since the HPs 35 and 55 of the pad portions at this time are aligned with the target HP 11, the HP (the pad portions HP 35 and 55) of the torso HP 81 is marked on the pad portions 21 and 41. Just align with the.
Further, the pad portions 21 and 41 of the seat cushion 20 and the seat back 40 sink (deform) under a load caused by the seating of the torso 80. At this time, the marking members 32 and 52 integrally joined to the pad portions 21 and 41 are also deformed together with the pad portions 21 and 41. That is, even when the pad portions 21 and 41 are deformed by the seating of the torso 80, the marking members 32 and 52 do not protrude from the formation surfaces 22 and 42 (and the seat cover 60) of the pad portions 21 and 41. Therefore, the designability and seating feeling of the vehicle seat 10 (the human being may sit down and the evaluation test may be performed) are not impaired.

As described above, the vehicle seat 10 according to the present embodiment also displays the HP 35 and 55 of the pad portion of the seat cushion 20 and the seat back 40 set based on the target HP 11 even when the seat cover 60 is covered. be able to. Therefore, for example, in the production (prototype) stage of the vehicle seat 10, the produced pad portions 21 and 41 are installed at appropriate positions with respect to the seat frame, or the pad portion 21 generated when the seat cover 60 is covered. , 41 can be easily corrected (alignment). That is, since the positions of the HPs 35 and 55 can be easily grasped at the stage of assembling the vehicle seat 10, the displacement of the installation positions can be grasped immediately, and the load for correction can be reduced.
Further, since the HPs 35 and 55 of the pad part are tactilely marked by the uneven shape formed in the forming surfaces 22 and 42 of the pad parts 21 and 41 and the rigidity of the marking members 32 and 52, the seat cover 60 is covered. Even in the state, the marking position can be easily recognized. Specifically, the marking members 32 and 52 (formed of a material having higher rigidity than the pad portions 21 and 41) for marking the HP portions 35 and 55 of the pad portions are formed inside the forming surfaces 22 and 42 of the pad portions 21 and 41. It joins with the fixed clearance 34,54. Therefore, even when the torso 80 is seated, the marking members 32 and 52 do not protrude from the pad portions 21 and 41 (and the seat cover 60), so that the design and seating feeling of the vehicle seat 10 are improved. It will not be damaged.
Thereby, also in the evaluation test of the prototype vehicle seat 10, the position of each part (the assembly state of the vehicle seat 10 and the seating state of the torso 80) is properly aligned, so the reliability of the measurement result is high. improves.
In addition, each layout operation can be performed efficiently even when peripheral parts such as an indoor mock are mounted.

Although the embodiment of the present invention has been described with respect to one example, the present invention can be implemented in various forms other than the above-described embodiment.
For example, in the present embodiment, the HP portions 35 and 55 of the pad portion are indicated by the tactile indication members 32 and 52 even when the seat cover 60 is covered by the resin indication members 32 and 52. Instead of the marking members 32 and 52, a light emitting member may be applied. That is, in the covering state of the seat cover 60, the HP of the pad portion may be projected onto the seat cover 60 to indicate the position through vision. In the stage before the seats 60 are covered with the pad portions 21 and 41, the HPs 35 and 55 of the pad portions are marked both visually and tactilely.
In the present embodiment, the front and rear and left and right positions of the target HP 11 are indicated on the HP 35 of the pad portion, and the upper and lower and left and right positions of the target HP 11 are indicated on the HP portion 55 of the pad portion. It is also possible to have a configuration in which only the front and rear positions of the target HP 11 are indicated on the HP 35 of the portion and only the upper and lower positions of the target HP 11 are indicated on the HP 55 of the pad portion. In this case, it is possible to omit the indication of the left and right positions of the target HP 11 or to represent only one of the HPs 35 and 55 of the pad portion. Further, in a left-right symmetric vehicle seat or the like, it is optional to omit the left and right positions of the target HP 11 on the HPs 35 and 55 of the pad portion according to the necessity.
Furthermore, in the present embodiment, an example of use of the vehicle seat 10 in the trial production stage has been described, but various effects can be obtained by applying to the actual product. For example, an appropriate seating position of the vehicle seat can be marked according to physique or purpose (for example, a hip point when the seat is tilted to take a break).

It is a perspective view which shows the outline of the vehicle seat of a present Example. It is a figure which shows the seating state of a torso in the side view of FIG. It is sectional drawing to which the principal part by the side of the seat cushion in FIG. 2 was expanded.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Vehicle seat 11 Hip point 20 Seat cushion 21 Pad part 22 Forming surface 23 Surface side part 30 Marking part (marking means)
DESCRIPTION OF SYMBOLS 31 Hole part 32 Marking member 33 Convex shape 34 Gap 35 Hip point set to pad part 40 Seat back 41 Pad part 42 Forming surface 43 Surface side part 50 Marking part (marking means)
51 Hole part 52 Marking member 53 Convex shape 54 Gap 55 Hip point set in pad part 60 Seat cover 61 Laminating material 70 Reclining mechanism 71 Bracket 72 Center of rotation 80 Torso 81 Hip point of torso

Claims (4)

A vehicle seat comprising a seat cushion and / or a seat back,
Each of the seat cushion and / or the seat back has a pad portion, and the position of the hip point is grasped through at least one of visual and tactile senses on the surface of the pad portion or the seat cover covered with the pad portion. A vehicular seat characterized in that it is provided with marking means that can be used. The vehicle seat according to claim 1,
The marking means includes a hole portion formed in the pad portion, and a marking member embedded in the hole portion and marking the hip point with a convex shape at the tip. A vehicle seat characterized by that. The vehicle seat according to claim 2,
The marking member of the marking means is formed of a material having higher rigidity than the pad portion, and is integrated with the pad portion in a state of being embedded in the hole portion by a predetermined dimension from the surface side portion of the pad portion. The vehicle seat is characterized by being joined together. The vehicle seat according to any one of claims 1 to 3,
The vehicle seat according to claim 1, wherein at least a front and rear position of the hip point is marked on the seat cushion, and at least a vertical position of the hip point is marked on the seat back.

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