JP5666288B2 - Molded bead set and sheet - Google Patents

Description

  The present invention relates to a molded bead set that is used for a bead of a sheet and emits light from the bead portion, and a sheet using the formed bead set.

  For example, as a sheet used for a vehicle such as an automobile, Patent Document 1 proposes a sheet that obtains a decorative effect by emitting light from a linear light guide.

JP 2009-184503 A

  In the prior art, the end of the linear light emitter is inserted into the mounting hole of the socket (light emitting unit). However, the linear light emitter may be separated from the light source in the socket due to the action of vibration or some tension. When the linear light emitter is pulled out of the socket, there is a risk that the light emission amount of the linear light emitter may be reduced or the linear light emitter may not emit light. Although it is conceivable to fix the linear light emitter to the socket with an adhesive, the operation becomes complicated.

  In view of the above-described facts, an object of the present invention is to provide a molded bead set and a sheet in which a linear light emitter does not move relative to a socket by the action of vibration or tension.

The molded bead set according to claim 1, wherein the linear light guide that makes light incident from an end portion and emits the light from an outer peripheral portion, covers the outer peripheral portion of the linear light guide body, and the linear shape. An edge member formed by including a covering portion that transmits light emitted from the outer peripheral portion of the light guide, and a sheet joining portion that protrudes outward from the covering portion and is joined to a sheet material, and the linear guide A light source housing portion that houses a light source that irradiates light to an end portion of the light body, and is provided in at least one of a socket that holds the end portion of the edge member, the socket, and the edge member, A connecting means for connecting the socket and the edge member to each other, and the sheet joint portion is sandwiched between the folded portion of one sheet material and the folded portion of the other sheet material, are sewn with the sheet inside said connecting means, a ball of the sheet bonding portion A socket fitting portion formed on the end side in the longitudinal direction of the member; and a fitted portion that is provided on the socket and holds the edge member by fitting with the socket fitting portion. It is .

Next, the operation of the molded bead set according to claim 1 will be described.
The edge member can be used as an edge of a sheet by, for example, joining a sheet joining portion to an end of a sheet material or the like. The sheet joining portion is sewn inside the sheet together with the one sheet material and the other sheet material while being sandwiched between the folded portion of one sheet material and the folded portion of the other sheet material .
In the molded bead set according to claim 1, the light source can be accommodated in the light source accommodating portion of the socket after the bead member is joined to the sheet material to complete the sheet. In addition, it is preferable to make the edge part which attaches the socket of a rim member project from the sheet | seat surface previously in the site | part which is not conspicuous.

  When the light source accommodated in the light source accommodating portion is turned on, the light emitted from the light source is irradiated to the end portion of the linear light guide, and the light is emitted from the outer peripheral portion of the linear light guide. And the light radiate | emitted from the outer peripheral part of the linear light guide is radiate | emitted outside via the coating | coated part of a bead member.

Since the linear light guide, the bead member, and the socket are integrated, the molded bead set according to claim 1 is configured such that the sheet joint portion of the bead member is used as a sheet material when sewing the skin of the sheet. When the finished sheet is attached to the vehicle body, for example, after attaching the finished sheet to the vehicle body, the light source connected to the wiring on the vehicle body can be accommodated in the socket with a simple operation. The light guide can be made to emit light.
Since the end of the linear light guide is held by the socket holder, the linear light emitter does not move relative to the socket due to the action of vibration or tension.
In addition, at the time of manufacturing the sheet, it is only necessary to join the bead member to the sheet material as in the case of a normal bead, and it is not necessary to connect the light source or the light source to the sheet, so that the sheet manufacturing work becomes complicated There is no.

In the molded bead set according to claim 1, since the socket fitting portion of the sheet joining portion is fitted to the fitted portion of the socket, the bead member moves relative to the socket by vibration or tension. There is nothing.
In addition, a bead member can be simply fixed to a socket by fitting the socket fitting part of a sheet | seat junction part to the to-be-fitted part of a socket.

According to a second aspect of the invention, in the molding Welt set of claim 1, wherein the socket is connected a first member, a second member, and said second member and said first member A hinge portion, and a fixing means for fixing the first member and the second member in a closed state, and the fitted portion and the light source accommodating portion are abutting surfaces of the first member And at least one of the second member and the butting surface side of the second member.

Next, the operation of the molded bead set according to claim 2 will be described .
In the molded bead set according to claim 2, since the fitted portion and the light source accommodating portion are provided on the butt surface side, the first member and the second member are closed to be fitted. The socket fitting part of the sheet coupling part fitted to the part and the light source accommodated in the light source accommodating part are arranged between the first member and the second member, and the first member is fixed by the fixing means. If it fixes in the state which faced | matched the 2nd member, a 1st member and a 2nd member will not open, and a bead member and a light source will be reliably prevented from coming out of a socket.
The sheet according to claim 3 uses the bead member of the molded bead set according to claim 1 or 2 as the bead.

  The molded bead set according to claim 1 has an excellent effect that the linear light emitter does not move relative to the socket due to the action of vibration or tension. In addition, the light source can be easily attached to the completed sheet.

According to the molded bead set according to claim 1, it is a simple operation of fitting the socket fitting portion of the sheet joining portion to the fitted portion of the socket, and without using an adhesive or the like, the bead The member can be easily fixed to the socket.

According to the molded bead set of claim 2, the bead member and the light source are reliably prevented from coming out of the socket.

The sheet according to claim 3 has an excellent effect that the linear light emitter does not move relative to the socket by the action of vibration or tension. Moreover, a light source can be easily attached to the sheet.

It is a perspective view of the sheet | seat using the shaping bead set which concerns on embodiment of this invention. (A) is the 2A-2A sectional view taken on the line of the sheet | seat shown in FIG. 1, (B) is the 2B-2B sectional view taken on the line shown in FIG. It is a disassembled perspective view of a molding bead set. It is a side view of a socket. It is a disassembled perspective view of the molding bead set which concerns on other embodiment. It is a side view of the socket concerning other embodiments.

  As shown in FIG. 1, the seat 10 of the present embodiment is a seat for a vehicle such as an automobile, and its shape, structure, etc. are not particularly limited. The seat 10 has a seat cushion 12 on which an occupant sits, a seat back 14 provided at a rear end portion of the seat cushion 12 so as to be tiltable and used as a backrest of the occupant, and height adjustment on an upper end portion of the seat back 14. The headrest 16 and the like that can be arranged are included.

2A is a cross-sectional view taken along line 2A-2A of the seat back 14 of FIG. 1, and FIG. 2B is a cross-sectional view taken along line 2B-2B of the seat cushion 12 of FIG.
As shown in FIGS. 2A and 2B, the skin of the seat cushion 12, the skin of the seat back 14, and the skin of the headrest 16 are each divided into a plurality of seat skin materials 18, and one seat The skin material 18 and the other sheet skin material 18 are sewn with a sewing thread 20. A portion where the sheet skin materials are sewn with the sewing thread 20 is referred to as a sewing portion 22.

  For the skin of the seat cushion 12, the skin of the seat back 14, and the skin of the headrest 16, generally known sheet materials such as various fabrics, vinyl (PVC, etc.) leather, genuine leather, synthetic leather, etc. can be used. .

  In the sheet 10 of this embodiment, the sewing part 22 is arrange | positioned at a ridgeline part and other parts, and the ball | bowl of the shaping | molding edge set 28 shown to FIG. 3 (B) is shown in the sewing part 22 arrange | positioned at a ridgeline part. An edge 24 is arranged. The molded bead set 28 includes a bead 24 and a socket 26 described later.

  As shown in FIG. 2 and FIG. 3 (A), the bead 24 is composed of a bead core 24A and a bead outer skin member 24B. In the present embodiment, a linear light guide is used for the ball edge core 24A. The linear light guide used in the ball edge core 24A of the present embodiment is of a type in which light is emitted from the outer peripheral portion by allowing light to enter from the end portion in the longitudinal direction. Etc. As the linear light guide, for example, a type in which a light scattering agent is contained in a material such as a polyurethane-based transparent synthetic resin, the refractive index of light is higher than that of the core outside the core layer having a large refractive index of light. A known type such as a type having a small clad layer may be used.

  The bead outer skin member 24B is formed of a flexible thermoplastic resin (for example, PVC or the like) that transmits light, and has a cylindrical portion 24Ba in which the bead core 24A is disposed, and a radially outer side from the cylindrical portion 24Ba. And a fin-like sheet joint portion 24Bb having a constant width and a constant thickness extending along the longitudinal direction.

  The bead outer skin member 24B can be formed by, for example, extrusion molding. The bead outer skin member 24B may be colorless and transparent, or may be colored.

  The ball edge 24 is formed by, for example, forming the ball edge core 24A and then extruding the formed ball edge core 24A from the base together with the molten thermoplastic resin, so that the ball edge skin member 24B and the ball edge core 24A are integrated. In this state, it can be continuously molded. The bead 24 can also be formed by inserting or press-fitting the bead core 24A into the cylindrical portion 24Ba after the bead outer skin member 24B is formed.

  As shown in FIG. 2, the sheet joint portion 24 </ b> Bb of the bead outer skin member 24 </ b> B is sewn with the sewing thread 20 together with the sheet skin material 18. In addition, when the sheet | seat skin material 18 is a thermoplastic material, the sheet | seat skin material 18 and sheet | seat junction part 24Bb can also be joined by welding.

  As shown in FIG. 3A, a socket fitting portion 25 that is cut into a triangular wave-like uneven shape is formed on the edge side in the edge direction of the edge of the sheet joining portion 24Bb.

(socket)
As shown in FIGS. 3 and 4, a socket 26 made of synthetic resin or the like is provided at the end of the bead 24.
The socket 26 includes a first member 26A and a second member 26B that are connected to each other via an integral hinge 32.

  The first member 26A is fitted with a light source fitting recess 36 in which one half of the LED 34 is fitted with the axis of the LED 34 as a boundary, and one half of the ball 24 is fitted with the axis of the bead 24 as a boundary. A bead fitting recess 38 is formed. The LED 34 used in the present embodiment is a cannonball type, but may have another shape.

  The light source fitting concave portion 36 includes a main body fitting concave portion 36A into which the main body portion 34A of the LED 34 is fitted, and a lead wire fitting concave portion 36B into which the lead wire 34B is fitted.

  The bead fitting recess 38 has a groove shape with a substantially semicircular cross section, and the bead body fitting recess 38A into which the cylindrical portion 24Ba of the bead outer shell member 24B is fitted, and the socket fitting portion 25 of the sheet joining portion 24Bb. Is provided with a sheet joint fitting recess 38B. Similarly to the socket fitting portion 25, the sheet joining portion fitting recess 38B of the present embodiment has a triangular wave-like uneven shape in plan view.

  The second member 26B is fitted with the light source fitting recess 36 in which the other half of the LED 34 is fitted with the axis of the LED 34 as a boundary, and the other half of the bead 24 with the axis of the bead 24 as the boundary. A bead fitting recess 38 is formed. The light source fitting recess 36 and the bead fitting recess 38 of the second member 26B have the same shape as the light source fitting recess 36 and the bead fitting recess 38 of the first member 26A, respectively.

  The first member 26A is formed with a hole 42 on the side opposite to the integral hinge 32, and the second member 26B is formed with a protrusion 40 that is press-fitted into the hole 42.

  Accordingly, as shown in FIG. 4, the socket 26 in which the first member 26A and the second member 26B face each other and the first member 26A and the second member 26B are in close contact with each other is not shown. The LED 34 is fitted into the light source fitting recess 36 of the first member 26A and the light source fitting recess 36 of the second member 26B, and the end of the bead 24 is connected to the bead fitting recess 38 of the first member 26A. It fits into the bead fitting recess 38 of the second member 26B, and the optical axis of the LED 34 and the axis of the bead core 24A coincide.

  As shown in FIG. 1, a part of the socket 26 and the edge 24 protrudes to the outside of the seat 10, but normally the lower surface of the seat cushion 12 or the side of the seat cushion 12 so as not to be seen by the occupant. It is arrange | positioned in the site | part hidden by the side cover 52 grade | etc., Arrange | positioned at a part.

  As shown in FIG. 3A, a wire 44 is connected to the terminal of the LED 34, and the LED 34 and the wire 44 are arranged in advance in a seat mounting portion of the vehicle. The wiring 44 is connected to a power source such as a battery (not shown), a switch, a control device, and the like.

(Function, effect)
In the sheet 10 of the present embodiment, when the LED 34 is caused to emit light, the light emitted from the tip of the LED 34 is incident on the end of the bead core 24A that is a linear light guide, and the bead from the outer periphery of the bead core 24A. Light is emitted to the outside of the core 24A. And the light radiate | emitted from the bead core 24A is radiated | emitted outside via the cylindrical part 24Ba of the bead outer skin member 24B. Since the sheet 10 of the present embodiment emits light from the ball edge 24 in various directions, it is excellent in light visibility and can enhance the decorative effect.

Next, an example of a vehicle manufacturing process will be described below.
First, the production of the molded bead set 28 will be described.
The molded ball edge set 28 opens a socket 26 that has been molded in advance, and the ball edge 24 that is also molded in advance is close to the light source fitting recess 36 and the socket fitting portion 25 is The end side of the bead 24 is disposed in the bead fitting recess 38 of the first member 26A so as to be fitted into the sheet joint fitting recess 38B of the first member 26A, and then the first member 26A. The second member 26 </ b> B is overlaid and the protrusion 40 is press-fitted into the hole 42 to fix the end of the edge 24 to the socket 26. In addition, you may make the edge part of the edge 24 fit to the sheet | seat junction part fitting recessed part 38B of the 2nd member 26B previously.

And the sheet | seat 10 is manufactured (separately from a vehicle body) using this shaping | molding bead set 28. FIG. In addition, the sheet | seat 10 is made to protrude outward of a sheet | seat by the dimension by which the edge part side of the ball edge 24 was decided beforehand.
On the other hand, the LED 34 and the wiring 44 are previously arranged in the seat mounting portion on the vehicle body.

  Then, as usual, the completed seat 10 is attached to the seat attachment portion of the vehicle body, then the socket 26 is opened, and the LED 34 is disposed in the light source fitting recess 36 of the first member 26A of the socket 26, and then the first The second member 26B is superimposed on the member 26A, and the protrusion 40 is press-fitted into the hole 42. As a result, the LED 34 is fixed to the socket 26, and the optical axis of the LED 34 coincides with the axis of the ball core 24A that is a linear light guide. Note that the socket 26 after the LED 34 is attached is disposed in a place where the sheet 10 is not conspicuous.

  As described above, in the present embodiment, after the seat 10 is attached to the vehicle body, the LED 34 can be easily fixed to the socket 26 without using a tool or a plurality of members. The axis of 24A can be matched without troublesome adjustment work and the light of the LED 34 can be efficiently incident on the end of the edge core 24A.

Further, since the bead 24 is fitted in the bead fitting recess 38 of the socket 26, even if vibration or tension is applied to the bead 24, the bead 24 may be displaced with respect to the socket 26. The edge 24 does not come out of the socket 26. Similarly, since the LED 34 is also fitted in the light source fitting recess 36, the LED 34 does not come out of the socket 26 even if tension is applied to the wiring 44.
Thereby, there is no possibility of causing problems such as a decrease in the amount of light emitted from the ball edge core (linear light emitter) 24A, or the ball edge core 24A not emitting light.

[Other Embodiments]
In the above-described embodiment, the sheet joint portion 24Bb of the ball edge 24 and the sheet joint portion fitting recess 38B of the socket 26 are each provided with a triangular wave-like uneven shape in plan view, but other than a sine wave shape, a rectangular wave shape, etc. The uneven shape may be used. Further, as shown in FIG. 5, instead of forming the sheet joint portion 24Bb in a triangular wave shape, a hole 46 is formed in the sheet joint portion 24Bb of the bead 24, and in the socket 26, the sheet joint portion fitting recess 38B is formed with a certain width. The projection 48 inserted into the hole 46 may be formed in the sheet joint fitting recess 38B of the socket 26.

  In the socket 26 of the above embodiment, the first member 26A and the second member 26B are fixed by press-fitting the protrusion 40 of the first member 26A into the hole 42 of the second member 26B. As shown in FIG. 6, the first member 26A is formed with a hook 50 that can be elastically deformed, and the hook 50 is hooked on the second member 26B, as shown in FIG. The member 26B can also be fixed.

  In the above embodiment, the bead fitting recess 38 for fitting the socket fitting portion 2 at the end of the bead 24 is formed in both the first member 26A and the second member 26B. It may be formed on one side. The light source fitting recess 36 into which the LED 34 is fitted only needs to be formed on one of the first member 26A and the second member 26B. When the bead fitting recess 38 and the light source fitting recess 36 are formed in only one of the first member 26A and the second member 26B, these depths are formed deeper than those shown in FIG.

  In the above-described embodiment, the ball outer shell member 24B is formed of a synthetic resin material that transmits light, but may be formed of a synthetic resin material that does not transmit light. In this case, a large number of holes may be formed in the outer edge shell member 24B.

  In the molded bead set 28 of the above embodiment, the socket 26 is provided at one end of the bead 24, but the socket 26 may be provided at both ends of the bead 24.

  In the above embodiment, the LED 34 is used as the light source. However, the present invention is not limited to this, and other types of light sources such as a laser diode and an incandescent light bulb may be used.

  Although one embodiment of the present invention has been described above, the present invention is not limited to the above, and other various modifications can be made without departing from the spirit of the present invention. It is.

10 sheet 24 ball edge 24A ball edge core (linear light emitter)
24B Ball edge shell member 24Ba Cylindrical part (covering part)
24Bb Sheet joint portion 26 Socket 26A First member 26B Second member 28 Molded bead set 32 Integral hinge (hinge portion)
36 Light source fitting recess (light source housing)
38B Sheet joint fitting recess (holding part)
40 Protrusion (fixing means)
42 holes (fixing means)
50 hook (fixing means)

Claims (3)

A linear light guide that makes light incident from an end and emits the light from an outer periphery; and
A cover that covers the outer periphery of the linear light guide and transmits light emitted from the outer periphery of the linear light guide, and a sheet joint that protrudes outward from the cover and is bonded to a sheet material A bead member molded including:
A light source housing portion that houses a light source that emits light to an end portion of the linear light guide, and a socket that holds the end portion of the edge member;
A connecting means provided on at least one of the socket and the bead member for connecting the socket and the bead member to each other;
Have
The sheet joint portion is sewn on the inner side of the sheet in a state of being sandwiched between the folded portion of one sheet material and the folded portion of the other sheet material ,
The connecting means holds the edge member by being fitted to the socket fitting part provided on the socket and the socket fitting part formed on the edge part longitudinal direction end side of the sheet joining part. A molded bead set configured to include a fitted portion . The socket closes the first member, the second member, the hinge portion that connects the first member and the second member, and the first member and the second member. Fixing means for fixing,
2. The molded ball according to claim 1 , wherein the fitted portion and the light source housing portion are provided on at least one of a butt surface side of the first member and a butt surface side of the second member. Rim set. The sheet | seat which uses the said bead member of the shaping bead set of Claim 1 or Claim 2 as a bead.