JP4206795B2 - Sheet - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vehicle seat, for example, and more particularly to a seat having a massage function.
[0002]
[Prior art]
Conventionally, in the configuration of a vehicle seat having a massage function, a tension member is stretched in a frame of a seat frame, and a seat pad is provided inside the tension member. And the movable body (roll) of a massage mechanism is arrange | positioned at the back surface side of a seat pad, and the movable body is pressed from the back surface of this seat pad.
A seat structure in which a tension member is stretched on the seat frame is disclosed in, for example, Patent Document 1.
[0003]
[Patent Document 1]
Japanese Patent Laid-Open No. 2000-116460
[Problems to be solved by the invention]
In order to improve the seating comfort of the seat, it is necessary to sufficiently secure the tension of the tension member to avoid the feeling of sinking the body when sitting. On the other hand, when the massage mechanism is used, if the tension of the tension member is large, the massage roll cannot be properly moved to the use position on the sheet surface side. For this reason, it is difficult for a tension member having a certain tension to achieve both contradictory functions such as a holding force when seated and a massage effect.
An object of the present invention is to solve the conventional problems, and an object of the present invention is to make it possible to satisfy both contradictory functions such as a holding force when seated and a massage effect.
[0005]
[Means for Solving the Problems]
The present invention is for achieving the above object, and is configured as follows.
The invention according to claim 1, the inside of the skin material in the seat cushion or the seat back, a seat of the type movable body is built to operate by massaging mechanism, provided inside the skin material, the skin A surface tension member that is sewn integrally with the skin material at a sewn portion of the material and whose end edge is coupled to the seat frame side, and from the sewn portion to the end edge of the surface tension member A tension regulating body arranged in contact with the inner surface between them and rotatably arranged. The tension regulating body rotates in the direction in which the planar tension member is stretched when a load is applied to the planar tension member from the outside, and conversely when the load is applied from the inside, The tension member is set to rotate in the direction of loosening.
[0006]
According to this arrangement, when the seated a load is applied from the outside to the planar tension member, remembering proper tension to the planar tension member by the rotation of the tension regulating member at that time, when seated in the body A feeling of sinking can be avoided . Moreover, when using the movable body for massage in which a load is applied to the planar tension member from the inside, the planar tension member can be loosened by the rotation of the tension regulating body at that time to reduce the tension . For this reason, it is possible to achieve both the comfort of securing the massage function during sheet over attachment seat.
[0007]
The invention according to claim 2 is the seat according to claim 1, wherein the tension regulating body is rotatably supported by the seat frame inside the planar tension member. The tension regulating body has two corner portions having a difference in distance from the rotation fulcrum, and the corner portion far from the rotation fulcrum is located closer to the side of the seat.
Thereby, the tension regulating body can change the tension of the planar tension member according to its rotation posture. That is, the tension regulating body rotates in the direction in which the planar tension member is stretched or the direction in which the planar tension member is loosened according to the direction of the load applied to the planar tension member, and the function described above. Can be demonstrated.
[0008]
Invention of Claim 3 is a sheet | seat described in Claim 1 or 2, Comprising: The tension control body is each arrange | positioned at the both sides of a sheet | seat.
Therefore, the tension of the planar extending member is adjusted uniformly over the entire surface.
[0009]
Invention of Claim 4 is a sheet | seat described in Claim 1, 2, or 3, Comprising: A planar tension member is mutually integrated in the suspension part of a skin material, This suspension part is elastic. It is drawn into the inside of the sheet through the member.
Thereby, a skin material can fully be drawn in in the hanging part and the designability of the sheet | seat surface can be maintained. Further, when the planar extending member receives a load from the inside by the movable body for massage, the elastic member extends, so that the movable body can be smoothly moved to the use position.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below. First, a first embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is a front view showing a seat back of a vehicle seat. 2 is a cross-sectional view in the direction of the arrow AA in FIG. FIG. 3 is a configuration diagram showing a part of the frame in the seat back by a perspective view and a sectional view. As shown in these drawings, the seat back 10 has a seat frame 12 positioned therein, and a front surface and both side surfaces are covered with a skin material 30. A back panel 34 is provided on the back surface of the seat back 10.
[0011]
The seat frame 12 includes a frame main body 12a formed in an arch shape and a lower pipe 12b spanned between both leg portions (FIGS. 1 and 3). Frame wires 14 are fixed to the frame body 12a on both sides thereof. In addition, seat pads 26 are provided on both sides in the seat back 10 so as to have both frame wires 14 as cores. These seat pads 26 constitute bank portions raised on the front side on both sides of the seat back 10.
[0012]
As shown in FIG. 1, tension regulating bodies 20 are arranged on both sides of the frame main body 12a. These tension regulating bodies 20 have a box shape that is long in the vertical direction and opened on the back side. As shown in FIG. 3A, the upper and lower ends of the tension regulating body 20 are rotatably supported by a rotary shaft 22 with respect to the upper and lower support brackets 16 fixed to the frame body 12a. In this support structure, as shown in FIG. 3 (B), the end portion of the rotating shaft 22 inserted from the inside of the tension regulating body 20 to the support bracket 16 side is crimped. In addition, a resin washer 24 is interposed between the support bracket 16 and the tension regulating body 20 so that the tension regulating body 20 rotates smoothly.
[0013]
The tension regulating body 20 is made of resin or metal, and its surface is smoothly finished. The axis of the rotary shaft 22 that is the rotation fulcrum of the tension regulating body 20 is biased, and there is a difference in the distance between the two corner portions 20a, 20b and the axis in the tension regulating body 20. The corner portion 20a closer to the axis of the rotation shaft 22 is located closer to the center of the seat back 10, and the corner portion 20b farther from the axis is located closer to the side of the seat back 10.
[0014]
The skin material 30 is made of cloth or leather, and its inner surface is a pad layer 30a. The skin material 30 is divided into a main portion 31 constituting the front portion of the seat back 10 and side portions 32 constituting both side portions of the seat back 10, and they are joined to each other by a sewing portion 46. . That is, the outer side of the seat pads 26 on both sides is covered by the side portions 32 of the skin material 30. In addition, the terminal edge of the side part 32 in the skin material 30 is couple | bonded with the frame main body 12a (FIG. 2).
[0015]
On the inner side of the skin material 30, a net material 40 (planar extending member) is provided. As shown in FIG. 2, the net material 40 is sewn integrally with the skin material 30 at a sewing portion 46 of the skin material 30. The net member 40 from the sewn portion 46 to the terminal edge is guided to the frame body 12a side along the surface including both the corner portions 20a and 20b of the tension regulating body 20. A net wire 42 is inserted into the end edge of the net member 40, and the net wire 42 is coupled to the frame wire 15 of the frame body 12a by a hog ring 44.
The net material 40 is configured by forming a twisted yarn made of a single fiber having elasticity such as nylon or polyester into a mesh shape. However, as the planar extending member, a cloth made of substantially the same material as the net material 40 or other materials can be used.
[0016]
As shown in FIG. 2, a massage roll 50 (movable body) of a massage mechanism is disposed inside the seat back 10. The massage roll 50 is in a storage position indicated by a solid line in the drawing when the massage mechanism is not used. When the massage mechanism is activated, the massage roll 50 moves to the front side of the seat back 10 and repeats a reciprocating operation (massaging operation) to the left and right at the use position indicated by the phantom line in the drawing. That is, in order to enhance the massage effect, it is important to move the massage roll 50 to an appropriate use position without imposing a burden.
[0017]
FIG. 4 is an explanatory diagram showing the relationship between the tension regulating body 20 and the net member 40 in correspondence with FIG. As is apparent from this drawing, the tension regulating body 20 rotates around the axis of the rotary shaft 22 depending on the direction of the load applied to the net member 40. That is, when a load F <b> 1 from the outside is applied to the net member 40 by the seat seated person's body, a large force acts on the corner portion 20 a side of the tension regulating body 20 by the net member 40. As a result, the tension regulating body 20 rotates in the clockwise direction in FIG. As a result, the net material 40 is pulled from the seam 46 to the terminal edge with the skin material 30, and the net material 40 is hardly loosened despite being subjected to a load from the outside. An appropriate sitting comfort is ensured by avoiding the feeling of sinking .
[0018]
On the other hand, when the load F2 from the inside is applied to the net member 40 by moving the massage roll 50 from the retracted position to the use position, the net member 40 causes a large force toward the corner portion 20b of the tension regulating body 20. Force acts. Accordingly, the tension regulating body 20 at this time rotates in the counterclockwise direction in FIG. Thereby, it can loosen from the sewing part 46 with the skin material 30 in the net | network material 40 to a terminal edge, and can move the massage roll 50 to a use position without a burden.
[0019]
5 and 6 are cross-sectional views showing examples of modifications of the sewn portion 46, respectively.
FIG. 5 shows a case where the sewing portion 46 of FIG. 2 is replaced with a fastener coupling portion 46A, and the male side 46A-1 of the flat fastener is attached to the net member 40 side by sewing or bonding. On the other hand, the female side 46A-2 of the flat fastener is sewn to the joint portion side of the main portion 31 and the side portion 32 in the skin material 30. The male side 46A-1 and the female side 46A-2 are joined to each other.
[0020]
FIG. 6 shows a case where the sewn portion 46 of FIG. 2 is replaced with a hog ring joint portion 46B, and a webbing 30b is sewn to the joint portion side of the main portion 31 and the side portion 32 in the skin material 30, and a cover wire is sewn there. 46B-1 is inserted. The cover wire 46B-1 and the net wire 46B-2 inserted through the net member 40 are coupled by a hog ring 46B-3.
[0021]
FIG. 7 is a cross-sectional view showing an example of a change in the coupling structure of the net member 40 to the frame wire 15. In this example, a hook 45 is sewn on the net material 40 side instead of the net wire 42 and the hog ring 44 of FIG. The hook 45 is directly engaged with the frame wire 15.
[0022]
Next, Embodiment 2 of the present invention will be described with reference to FIG.
FIG. 8 is a cross-sectional view showing a part of the seat back in correspondence with FIG. As shown in this drawing, the sewn portion between the main portion 31 and the side portion 32 in the skin material 30 is a suspended portion 60 along the longitudinal direction of the seat back 10. The suspending portion 60 is formed by connecting the cover wire 64 inserted through the webbing 62 on the skin material 30 side and the net wire 66 inserted through the net material 40 with a hog ring 68, thereby allowing the skin material 30 to be seat padded. 26 has a structure that is deeply drawn into the pad recess 26a.
[0023]
One end edge of the elastic member 70 using rubber or the like is sewn to a portion of the net member 40 close to the net wire 66. The elastic member 70 is guided by the extension portion 15 a of the frame wire 15 and guided to the frame body 12 a side, and the wire 72 inserted through the other end edge is coupled to the frame wire 15 by the hog ring 74. By this elastic member 70, the slack of the net member 40 in the hanging portion 60 can be regulated. As a result, the skin material 30 can be sufficiently drawn into the seat back 10 at the hanging portion 60, and the design of the surface of the seat back 10 can be enhanced. Further, as the massage roll 50 moves to the use position, the elastic member 70 is extended when the net member 40 receives a load from the inside, and it is possible to prevent the massage roll 50 from being burdened.
[0024]
FIG. 9 is a cross-sectional view illustrating a modification example of the hanging portion 60. In the example of this drawing, a flat fastener 80 is used instead of the cover wire 64 and the hog ring 68 of the hanging portion 60. That is, the male side 80a of the flat fastener 80 is sewn together at the sewn portion of the main portion 31 and the side portion 32 of the skin material 30, and the female side 80b is sewn to the net material 40 side. And the skin material 30 is suspended by joining these male side 80a and female side 80b.
[0025]
As described above, by changing the tension of the net member 40 in accordance with the rotational posture of the tension regulating body 20, conflicting functions such as securing the holding force when seated and improving the massage effect by the massage roll 50 are achieved. Coexistence is possible. In addition, although the case where this invention was applied to the seat back 10 was demonstrated in drawing, even when it applies to a seat cushion, the same function is acquired.
Further, although the present embodiment has been described with respect to a vehicle seat, the same effects as the vehicle seat can be obtained even when a furniture sheet used in a house is targeted.
[Brief description of the drawings]
FIG. 1 is a front view showing a seat back of a vehicle seat. FIG. 2 is a cross-sectional view taken in the direction of arrow AA in FIG. 1. FIG. 3 is a structural view showing a part of a frame in the seat back. FIG. 5 is a cross-sectional view showing a change example of the sewing portion. FIG. 6 is a cross-sectional view showing a change example of the sewing portion. 7 is a cross-sectional view showing an example of a change in the connection structure of the net material to the frame wire. FIG. 8 is a cross-sectional view showing the seat back according to the second embodiment in correspondence with FIG. 2. FIG. Sectional view showing an example of change of suspension part
DESCRIPTION OF SYMBOLS 10 Seat back 12 Seat frame 20 Tension control body 22 Rotating shaft (Rotation fulcrum)
30 Skin material 40 Net material (planar tension member)
50 Massage roll (movable body)

Claims (4)

A seat of a type in which a movable body that is operated by a massage mechanism is built inside the skin material of the seat cushion or the seat back, and is provided on the inside of the skin material, and the skin material at the sewn portion of the skin material In a state in which the terminal edge is joined to the seat frame side, and the inner surface between the sewing portion and the terminal edge of the surface extension member is in contact with the sheet frame side. And a tension regulating body arranged rotatably. The tension regulating body rotates in a direction in which the planar tension member is stretched when a load is applied to the planar tension member from the outside. On the contrary, when a load is applied from the inside, the sheet is set so as to rotate in a direction to loosen the planar tension member. The seat according to claim 1, wherein the tension regulating body is rotatably supported by the seat frame inside the planar tension member, and the tension regulating body is a distance from the rotation fulcrum. A sheet having two corners having a difference between the two and having a corner farther from the rotation fulcrum positioned closer to the side of the sheet. It is a sheet | seat described in Claim 1 or 2, Comprising: The tension | tensile_strength regulation body is a sheet | seat respectively arrange | positioned at the both sides of a sheet | seat. It is a sheet | seat described in Claim 1, 2, or 3, Comprising: A planar extending member is mutually integrated in the suspending part of a skin material, This suspending part is drawn inside the sheet | seat through the elastic member. Sheet.

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