JP2017013735A - Vehicle seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle seat which causes a part of a seat surface to planarly shine to improve the design.SOLUTION: A vehicle seat 1 includes: a back pad 20; and a back cover 30 covering the back pad 20. A recessed part 25 having an opening part 251 on a seating person side surface is provided at the back pad 20. A light emitting diode 422 is disposed in the recessed part 25. The opening part 251 is covered with a translucent resin plate 43. A light transmissive surface cover 322 which transmits part of light emitted from the light emitting diode 422 is disposed at a position of the back cover 30 which corresponds to at least the opening part 251.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a vehicle seat.

  Vehicle seats with light emitting diodes are known. In the invention disclosed in Patent Document 1, the state of the air conditioning of the seat is displayed by embedding a light emitting diode near the seat surface of the cushion pad of the seat and turning on and off in conjunction with the ON and OFF of the seat air conditioner. An apparatus is disclosed.

JP2011-248165A

  In the invention disclosed in Patent Document 1, light from the light-emitting diode is directly transmitted through the cushion cover, and thus is emitted to the outside as point-like light. For this reason, although the state of the air conditioning of a sheet | seat can be recognized by the lighting / extinguishing of a light emitting diode, it cannot respond to the request | requirement of making a part of sheet | seat surface shine planarly and improving design property.

  In view of such a problem, an object of the present invention is to provide a vehicle seat in which a part of the sheet surface is illuminated in a planar shape to improve the design.

  1st invention of this invention is a vehicle seat, Comprising: The seat pad and the seat cover which covers this seat pad, The recessed part which has an opening part in the surface at the side of a seating person in the said seat pad A light emitting diode is disposed in the recess, the opening is covered with a translucent resin plate, and the light emitting diode is disposed at a position corresponding to at least the opening of the seat cover. A light-transmitting skin that transmits a part of the light emitted from is disposed.

  According to the first invention, after the light from the light emitting diode is diffused in a planar shape by the translucent resin plate, the light passes through the light transmissive skin and is emitted to the outside of the sheet. Thereby, a part of the sheet surface can be illuminated in a planar shape to improve the design.

  According to a second aspect of the present invention, in the first aspect, the light-transmitting skin is a laminate structure of a fabric body and a foamable resin sheet.

  According to the second invention, even when the body of the seated person sitting on the vehicle seat comes on the translucent resin plate, the body of the seated person is supported with a soft feel by the foamable resin sheet of the light-transmitting skin. It will be. For this reason, riding comfort deterioration can be suppressed.

  According to a third aspect of the present invention, in the first aspect or the second aspect, the concave portion has a groove shape, a cross section cut by a plane perpendicular to the longitudinal direction thereof has a substantially U shape, and the bottom surface of the concave portion. And the side surface portions are covered with a light reflecting member, and the plurality of light emitting diodes are disposed on the bottom surface portion and / or the both side surface portions.

  According to the third invention, since the light of the light emitting diode is efficiently collected on the translucent resin plate by the reflection effect by the light reflecting member, the planar light emitted to the outside of the sheet is efficiently brightened, and more Designability can be improved.

  According to a fourth aspect of the present invention, in the third aspect, the plurality of light emitting diodes are disposed near the bottom surface portions of the both side surface portions.

  According to the fourth invention, since the plurality of light emitting diodes are positioned apart from the semitransparent resin plate, the semitransparent resin plate can be surface-emitted more uniformly to further improve the design.

It is a front view of the sheet for vehicles which is one embodiment of the present invention. It is the II-II arrow directional cross-sectional view of FIG. It is an enlarged view of the part III of FIG.

  1 to 3 show an embodiment of the present invention. This embodiment shows an example in which the present invention is applied to a seat back of an automobile seat. In each figure, each direction of the automobile when the automobile seat is attached to the automobile is indicated by an arrow. In the following description, the description regarding the direction is made based on this direction.

  As shown in FIG. 1, the automobile seat 1 includes a seat back 10, a seat cushion 2, and a headrest 3. The seat back 10 has a structure in which a back pad 20 that is a cushioning material is placed on a metal back frame (not shown) that is a skeleton member, and is covered with a back cover 30 that is a skin material. doing.

  As shown in FIGS. 1 and 2, the back pad 20 includes a main portion 21 disposed at the center portion in the left-right direction of the seat back 10, and side portions 22 disposed on the left and right sides of the main portion 21. I have. The front surface portion of the main portion 21 extends in the left-right direction, but the front surface portion of the side portion 22 extends in an inclined manner so as to protrude forward from the inner end in the seat width direction. A longitudinal groove portion 26 is provided at a boundary portion between the front surface portion of the main portion 21 and the front surface portion of the side portion 22.

  As shown in FIGS. 1 and 2, the side portion 22 of the back pad 20 is provided with a recess 25. The concave portion 25 has an opening 251 in the front surface portion of the side portion 22, and is formed in a groove shape that is located slightly outside the longitudinal groove portion 26 and extends in the vertical direction. The concave portion 25 has a substantially U-shaped cross section cut by a horizontal surface and includes a bottom surface portion 252 and a side surface portion 253 erected forward from the left and right sides of the bottom surface portion 252. ing. The bottom surface portion 252 extends substantially parallel to the front surface portion of the main portion 21 of the back pad 20 in the left-right direction. As described above, the front surface portion of the side portion 22 of the back pad 20 extends so as to protrude forward from the inner end portion in the seat width direction toward the outer side, and therefore, the side portion on the outer side in the seat width direction. 253 extends longer in the front-rear direction than the side surface part 253 on the inner side in the seat width direction.

  As shown in FIGS. 2 and 3, the illumination unit 40 is disposed in the recess 25 of the back pad 20. The illumination unit 40 includes a light reflecting member 41, an LED tape 42, and a translucent resin plate 43. The light reflecting member 41 is a long member obtained by thermoforming an ABS resin plate having a thickness of about 1 mm into a shape corresponding to the concave portion 25 of the back pad 20, and a bottom wall portion covering the bottom surface portion 252 of the concave portion 25. 412 and a side wall portion 413 that covers the side surface portion 253. Further, the inner surface of the light reflecting member 41 is painted white in order to easily reflect light. The LED tape 42 has a structure in which surface-mount type light emitting diodes 422 are attached to a long and flexible tape-like substrate 421 at an interval of about 8 millimeters. The LED tape 42 is attached to a portion of the side wall portions 413 near the bottom wall portion 412 along the longitudinal direction of the side wall portions 413 of the light reflecting member 41. The translucent resin plate 43 is a long member trimmed after thermoforming a translucent milky white acrylic resin plate having a thickness of about 2 mm into a shape corresponding to the opening 251 of the recess 25 of the back pad 20. It is. After attaching the LED tape 42 to the light reflecting member 41, the lighting unit 40 is bonded by bonding the front end portions of the side wall portions 413 and the left and right end portions of the translucent resin plate 43 of the light reflecting member 41. Is formed. In the lighting unit 40, when the light emitting diode 422 of the LED tape 42 is turned on, the light of the light emitting diode 422 hits the light reflecting member 41 and is reflected and collected on the semitransparent resin plate 43. It is done.

  As shown in FIGS. 1 and 2, the back cover 30 is formed by stitching pieces such as fabric and genuine leather into a three-dimensional shape. A portion corresponding to 20 vertical groove portions 26 is fixedly attached to the back pad 20. That is, the back cover 30 covers the main part cover 31 that covers the front surface part of the main part 21 of the back pad 20, the side part cover 32 that covers the front surface part of the side part 22, and the side and rear surfaces of the back pad 20. And a back cover 33. The main part cover 31 and the back cover 33 are mainly made of genuine leather, but the side part cover 32 is sewed together with a normal skin 321 made mainly of genuine leather and a light-transmitting skin 322 in the same manner as the main part cover 31. Is formed.

  As shown in FIG. 3, the light-transmitting skin 322 of the side cover 32 has a laminate structure of a fabric body 322 </ b> A and a foamable resin sheet 322 </ b> B, and when the back cover 30 is attached to the back pad 20. It arrange | positions so that the opening part 251 of the recessed part 25 of the back pad 20 can be covered. At this time, the fabric body 322A and the expandable resin sheet 322B are positioned in this order from the front. The fabric body 322A is a knitted fabric, and has a fiber density that is coarser than that of a knitted fabric used for a normal back cover, and is configured to transmit a part of light of the light emitting diode 422 of the illumination unit 40. In addition, the foamable resin sheet 322B is made of white foamed urethane, and has a thickness and a foaming ratio that allow a part of the light of the light emitting diode 422 of the lighting unit 40 to pass therethrough.

  Based on FIG. 2, the attachment method of the illumination unit 40 is demonstrated. First, after foaming of the back pad 20, the front surface portion of the side portion 22 is dug to form the recess 25. Next, after applying an adhesive to the bottom surface portion 252 and both side surface portions 253 of the concave portion 25, the lighting unit 40 is fitted and adhered in the concave portion 25 with the translucent resin plate 42 facing frontward. Then, the back cover 30 is attached to the back pad 20, and the front side of the translucent resin plate 43 of the illumination unit 40 is covered with the light-transmitting skin 322 of the back cover 30.

  The present embodiment configured as described above has the following operational effects. After the light from the light emitting diode 422 is diffused in a planar shape by the translucent resin plate 43, the light passes through the light transmissive skin 322 of the back cover 30 and is emitted to the outside. Thereby, a part of the sheet surface can be illuminated in a planar shape to improve the design. Further, even when the body of the seated person sitting on the automobile seat 1 comes on the translucent resin plate 43, the body of the seated person can be supported with a soft touch by the foamable resin sheet 322B of the light-transmitting skin 322. become. For this reason, riding comfort deterioration can be suppressed. Moreover, since the light of the light emitting diode 422 is efficiently collected on the translucent resin plate 43 due to the reflection effect of the light reflecting member 41, it is possible to efficiently brighten the planar light and further improve the design. Further, since the light emitting diode 422 is disposed closer to the bottom surface portion 252 of the both side surface portions 253 of the concave portion 25, the light emitting diode 422 is positioned away from the translucent resin plate 43. The design can be further enhanced by causing the plate 43 to emit light more uniformly.

  As mentioned above, although specific embodiment was described, this invention is not limited to those external appearances and structures, A various change, addition, and deletion are possible in the range which does not change the summary of this invention.

  For example, although not particularly mentioned in the present embodiment, as shown in FIG. 3, in order to adjust the color of the planar light emitted outside the sheet, the translucent resin plate 43 of the lighting unit 40 is used. A colored light-transmitting resin film 45 can also be disposed on the front surface of the lens. The colored light-transmitting resin film 45 can be disposed on the rear surface of the translucent resin plate 43 or can be attached to the LED tape 42 so as to cover the light emitting diode 422.

  Moreover, in this embodiment, the structure which provides the groove-shaped recessed part 25 extended to an up-down direction in the front surface part of the back pad 20 was illustrated as a recessed part. However, the shape of the concave portion is not limited to this, and may be, for example, a groove shape extending in the sheet width direction, or may be a shape other than the groove shape in which the opening is a circle or a rectangle.

  Moreover, in this embodiment, the structure which uses the fabric body 322A made from a knitted fabric as the fabric body of the light-transmitting skin 322 was shown. However, it is not limited to this. That is, the fabric body may not be made of knitted fabric, but may be made of woven fabric as long as it can transmit a part of the light emitted from the light emitting diode 422 when laminated with the foamable resin sheet 322B. It may be made of non-woven fabric.

  Moreover, in this embodiment, the structure using the resin-made light reflection member 41 painted white as the light reflection member of the illumination unit 40 was illustrated. However, it is not limited to this. That is, for example, a glossy metal member may be used as the light reflecting member, or a glossy metal foil attached to the inner surface of the bottom wall portion 412 and both side wall portions 413 of the resin member. It may be used.

  Moreover, in this embodiment, although the method of digging the site | part corresponding to the recessed part 25 after shaping | molding the back pad 20 was illustrated as a method of forming the recessed part 25 in the back pad 20, it is not limited to this. That is, for example, by projecting a portion corresponding to the concave portion 25 of the mold of the back pad 20 and foaming the back pad 20 using the molding die, the concave portion 25 is formed simultaneously with the foam molding of the back pad 20. It may be a formed method.

  Further, in the present embodiment, the present invention is applied to the seat back 10, but may be applied to the seat cushion 2.

  In the present embodiment, the present invention is applied to an automobile seat, but may be applied to a seat mounted on an airplane, a ship, a train, or the like.

1 Car seat (vehicle seat)
20 Back pad (seat pad)
25 Recessed portion 251 Opening portion 252 Bottom surface portion 253 Side surface portion 30 Back cover (seat cover)
322 Light transmissive skin 322A Fabric body 322B Foamable resin sheet 41 Light reflecting member 422 Light emitting diode 43 Translucent resin plate

Claims (4)

A vehicle seat,
A seat pad, and a seat cover that covers the seat pad,
The seat pad is provided with a recess having an opening on the surface on the seated side, a light emitting diode is disposed in the recess, and the opening is covered with a translucent resin plate,
A vehicle seat in which a light-transmitting skin that transmits a part of light emitted from the light-emitting diode is disposed at a position corresponding to at least the opening of the seat cover. In claim 1,
The light-transmitting skin is a vehicle sheet that is a laminate structure of a fabric body and a foamable resin sheet. In claim 1 or claim 2,
The concave portion has a groove shape, and a cross section cut by a plane perpendicular to the longitudinal direction is substantially U-shaped,
The bottom surface portion and both side surface portions of the recess are covered with a light reflecting member,
The vehicle seat in which the plurality of light emitting diodes are disposed on the bottom surface and / or the both side surfaces. In claim 3,
The vehicle seat, wherein the plurality of light emitting diodes are disposed near the bottom surface of the both side surfaces.

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