JPH0731729Y2 - Seat heater mounting structure - Google Patents

Description

[Detailed Description of the Invention] "Industrial application field" The present invention is to install the trim cover so that the lead-in portion provided in the trim cover is pulled into the concave groove formed in the cushion pad, and the trim cover is fitted along the upper surface of the cushion pad. The present invention relates to a mounting structure for a seat heater, which is installed between the cushion pad and the trim cover.

"Prior Art" As a conventional attachment structure of this type of seat heater, for example, there is one as shown in Figs. 6 to 8.

That is, between the pad 2 and the trim cover 4 forming the cushion 1, the heating element 7 of the seat heater including a plurality of strip-shaped portions 7a extending in the front-rear direction is installed, and the cushion 1 is arranged so as to straddle the heating element 7. The pulling portion 1a is formed on the.

The catching wire 6 is hooked on the laterally continuous pulling pieces 5, 5 sewn to the trim cover 4 so as to pass through the slits 7b between the strip-shaped parts 7a of the heating element 7, and the catching wire 6 is provided on the pad 2. The pulling portion 1a of the cushion 1 is formed by pulling it into the concave groove 2a and fixing it to the insert wire 3 embedded in the bottom portion of the concave groove 2a.

[Problems to be Solved by the Invention] However, in such a conventional seat heater mounting structure, the pulling piece 5 to be drawn into the recessed groove 2a passes through the slit 7b, bypassing the strip-shaped portion 7a of the heating element 7. Since it is divided into a plurality of parts, the pull-in portion 4a cannot be pulled straight and evenly, and there is a problem in that the pulling portion 1a of the cushion 1 is uneven, and the appearance is impaired.

In this case, in order to prevent the pulling part of the cushion from undulating in an uneven shape, one laterally extending pulling piece is sewn to the pulling-in part of the trim cover, and the retaining wire inserted into the pulling piece is wound around the heating element. Although it may be considered that the heating wire is pulled into the concave groove of the cushion pad and fixed to the insert wire, the heating wire in the heating element is easily sandwiched between the stop wire and the insert wire and is easily broken, which cannot be adopted.

The present invention has been made in view of such conventional problems, and it is possible to form a cushion pulling portion that does not undulate in an uneven shape without breaking the heating wire in the heat generating body, and it looks good. It is an object of the present invention to provide a seat heater mounting structure that can be used.

[Means for Solving the Problem] The gist of the present invention for achieving such an object is to make the upper surface of the cushion pad by pulling the retracting portion provided in the trim cover into the groove formed in the cushion pad. In a seat heater mounting structure in which a trim cover is attached so as to fit along the cushion pad and the trim cover, an insert wire is embedded in the bottom of the recessed groove of the cushion pad while the trim cover is inserted into the lead-in portion. A plate-shaped retractable retainer is attached, and a part of the retractable retainer corresponding to the position where the end edge of the retractable retainer overlaps the heating wire of the seat heater is cut out to form an interference avoiding portion. The seat heater is characterized in that it is drawn into the groove of the It resides in the mounting structure.

[Operation] When a seat heater is attached to a cushion that forms a vehicle seat or the like, first, the seat heater is placed on the upper surface of the cushion pad that forms the cushion.

In order to form the pulling portion on the cushion so as to straddle the seat heater, the cushion pad is previously formed with a recessed groove for retracting the trim cover, and the insert wire is embedded in the bottom of the recessed groove.

The trim cover that covers the cushion pad and the seat heater placed on the upper surface of the cushion pad has a recessed portion corresponding to the recessed groove of the cushion pad, and the recessed portion is a plate-shaped retainer for retracting into the recessed groove. Fasten.

An end edge of the retractable retainer cuts out a part of the retractable retainer corresponding to a position where the retractable retainer overlaps the heating wire of the seat heater to form an interference avoiding portion for preventing disconnection of the heating wire of the seat heater.

If the retracting retainer fixed to the retracting part of the trim cover is pulled into the recessed groove of the cushion pad so that the seat retainer is retracted into the recessed groove and fixed to the insert wire, the trim cover will be a cushion. It is attached along the upper surface of the pad.

Accordingly, the seat heater is mounted between the cushion pad and the trim cover that covers the cushion pad, and is attached to the cushion.

The retractor retainer of the trim cover does not need to be split so as to avoid the heating wire of the seat heater, and the retractor of the trim cover can be pulled evenly into the recessed groove of the cushion pad while being stretched in a straight line in both directions. No unevenness is formed on the pulling portion formed on the cushion.

In this case, a part of the seat heater drawn into the concave groove of the cushion pad is sandwiched by the insert wire and the draw-in retainer, but an interference avoidance portion is formed in a part of the draw-in retainer overlapping the heating wire of the seat heater. Because
There is no risk of breaking the heating wire.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

1 to 5 show an embodiment of the present invention.

As shown in FIGS. 1 and 2, a seat cushion 20 of a vehicle seat 10 supports a seat surface portion 21 that directly supports a seated person's buttocks, and lateral loads of the seated person on both sides of the seat surface portion 21. It is composed of a side portion 22.

A cushion pad 30 that constitutes the seat cushion 20, and
A heating element 51 of the seat heater 50 is installed between the cushion pad 30 and the trim cover 40 that covers the upper surface of the cushion pad 30. The heating element 51 is arranged so as to correspond to the seat surface portion 21 of the seat cushion 20.

The heating element 51 of the seat heater 50 is one in which a heating wire 52 bent in a meandering shape is provided inside a rectangular outer cover material.
A tip of a harness 53 extending from a rear end of the seat 51 to the rear of the seat cushion 20 is connected to a plug 54.

At the boundary between the side portion 22 of the seat cushion 20 and the seat surface portion 21,
A vertical pulling portion 23 extending in the front-rear direction is formed, and
The seat surface portion 21 is also formed with laterally extending portions 24, 24 extending in both directions so as to straddle the heating element 51 at two positions in the front and rear.

The seat cushion forming portion 31 of the cushion pad 30 that constitutes the seat cushion 20 includes a trim cover 40 corresponding to the lateral pulling portion 24.
A recessed groove 32 for drawing in is formed.

An insert wire 33 extending in the front-rear direction is embedded in the cushion pad 30 so as to pass below the respective ends of the front and rear recessed grooves 32, 32.

The trim cover 40 mounted along the upper surface of the cushion pad 30 corresponds to the shape of the cushion pad 30, and the main cover 42 that covers the seat surface forming portion 31 of the cushion pad 30.
And the side cover 41 corresponding to the side portion 22 of the cushion pad 30 are integrally sewn.

A pull-in portion 43 is formed in a portion of the main cover 42 corresponding to the concave groove 32 of the cushion pad 30, and a pull-in piece 44 extending in the longitudinal direction is sewn to the pull-in portion 43.

On the pulling piece 44 sewn on the pulling part 43 of the main cover 42,
As shown in FIG. 5, a narrow plate-shaped retractable retainer 45 made of synthetic resin is sewn on.

An edge 45a of the retractable retainer 45 located at a position overlapping the heating wire 51 of the seat heater 50 placed on the cushion pad 30.
A part of the side is cut out in a rectangular shape so as not to press the heating wire 52, and forms an interference avoiding portion 46 that prevents the heating wire 52 of the seat heater 50 from being broken.

Retractor retainer 45 sewn on the pulling piece 44 of the main cover 42
As shown in FIGS. 3 and 4, the part of the heat generating element 51 that covers the concave groove 32 of the cushion pad 30 is drawn into the concave groove 32 so that both ends of the retractable retainer 45 are drawn. Is fixed to the insert wires 33, 33 by the ohmic clip 47.

Next, the operation will be described.

As shown in FIG. 1, the seat heater 50 is attached to the vehicle seat 10.
In the case of attaching to the seat cushion 20, the heating element 51 of the seat heater 50 is first placed on the seat surface forming portion 31 of the cushion pad 30.

In the seat surface forming portion 31 of the cushion pad 30, a recessed groove 32 for retracting the retracting portion 43 of the main cover 42 is formed in advance, and the front and rear passages are formed so as to pass below the respective ends of the front and rear recessed grooves 32, 32. The insert wire 33 extending in the direction is embedded in the cushion pad 30.

In the main cover 42 that covers the heating element 51 of the seat heater 50 placed on the seating surface forming portion 31 of the cushion pad 30, a lead-in portion 43 is formed corresponding to the concave groove 32 of the cushion pad 30, and the lead-in portion 43 is formed. Sew a pulling piece 44 extending in the longitudinal direction.

As shown in FIG. 5, the pulling piece 44 sewn to the pulling-in portion 43 of the main cover 42 is sewn with a narrow-width pull-in retainer 45 made of synthetic resin.

Since the retractable retainer 45 is connected to the retractable portion 43 of the main cover 42 via the pulling piece 44, the retractable retainer 45 does not cause a foreign object.

As shown in FIG. 2, a part of the end edge 45a of the retractable retainer 45, which is located at a position overlapping with the heating wire 52 of the heating element 51 of the seat heater 50, is cut into a rectangular shape so as not to press the heating wire 52. The interference avoiding portion 46 for preventing the disconnection of the heating wire 52 of the heating element 51 of the seat heater 50 is formed.

Next, the pull-in retainer 45 connected to the pull-in portion 43 of the main cover 42 via the pulling piece 44 is inserted into the concave groove of the cushion pad 30.
A part of the heating element 51 of the seat heater 50 covering 32 is drawn into the groove 32 so as to be wound, and the drawing retainer 45 is fixed to the insert wire 33 with the ohm clip 47.

In this way, by pulling the lead-in portion 43 of the main cover 42 into the concave groove 32 of the cushion pad 30 and fixing it, the lead-in portion 43 is laterally attached to the seat surface portion 21 of the seat cushion 20 so as to straddle the heating element 51 of the seat heater 50. The pulling part 24 is formed.

As shown in FIG. 1, while forming the lateral pulling portion 24,
If the trim cover 40 is attached to the upper surface of the cushion pad 30 while forming the vertical pulling portion 23, the seat heater 50 is installed between the cushion pad 30 and the trim cover 40.
Attached to the seat cushion 20.

The lead-in retainer 45 of the main cover 42 does not need to be divided so as to avoid the heating wire 52 of the seat heater 50, and the lead-in retainer 45 of the main cover 42 is stretched in a straight line in both directions.
Is evenly drawn into the recessed groove 32 of the cushion pad 30, so that the lateral pulling portion 24 formed on the seat cushion 20 does not have unevenness.

In this case, part of the heating element 51 of the seat heater 50 drawn into the concave groove 32 of the cushion pad 30 is
Although it is sandwiched between 33 and the retracting retainer 45, the retracting retainer 45 that overlaps the heating wire 52 of the heating element 51 is provided with the interference avoiding portion 46, so there is no risk of the heating wire 52 breaking.

In the seat heater mounting structure according to the embodiment,
An insert wire 33 extending in the front-rear direction is embedded in the cushion pad 30 so as to pass below the respective ends of the front and rear concave grooves 32, 32, but in both directions along the concave groove 32 of the cushion pad 30. The extending insert wire may be embedded below the groove 32.

Further, in the seat heater mounting structure according to the embodiment,
I explained the seat cushion of the vehicle seat,
In addition to being applied to a seat back cushion, it can also be used for a sofa in a reception set, for example.

[Advantage of the Invention] According to the seat heater mounting structure of the present invention, a part of the retracting retainer fixed to the retracting part of the trim cover that overlaps the heating wire of the seat heater on the cushion pad is cut out to form an interference avoiding part. Therefore, while preventing the breakage of the heating wire, the retract retainer of the trim cover can be evenly drawn into the recessed groove of the cushion pad over the entire width of the seat heater and can be fixed to the insert wire, so that the seat heater can be straddled. In this way, the pulling portion formed on the cushion does not undulate in an uneven shape, and the appearance can be improved.

[Brief description of drawings]

1 to 5 show an embodiment of the present invention. FIG. 1 is a perspective view of a seat cushion having a seat heater installed therein, and FIG. 2 is a sectional view taken along line II-II of FIG. 3 is a sectional view taken along the line III-III in FIG. 1, FIG. 4 is a sectional view taken along the line IV-IV in FIG. 1, FIG. 5 is a perspective view of the trim cover, and FIGS. 6 to 8 are conventional seats. FIG. 6 shows a heater mounting structure, and FIG. 6 is a perspective view of a seat cushion incorporating a seat heater,
FIG. 7 is a sectional view taken along the line VII-VII of FIG. 6, and FIG. 8 is a perspective view of the trim cover and the seat heater. 10 …… Vehicle seat 20 …… Seat cushion 21 …… Seat surface part 22 …… Side surface part 23 …… Vertical pulling part 24 …… Horizontal pulling part 30 …… Cushion pad 31 …… Seat surface forming part 32 …… Concave groove 33 …… Insert wire 40 …… Trim cover 41 …… Side cover 42 …… Main cover 43 …… Pulling part 44 …… Pulling piece 45 …… Pulling retainer 46 …… Interference avoiding part 50 …… Seat heater 51 …… Heat generation Body 52 ... heating wire

Claims (1)

[Scope of utility model registration request] 1. A retractable portion provided on a trim cover is retracted into a concave groove formed on a cushion pad, the trim cover is attached along the upper surface of the cushion pad, and the trim cover is internally mounted between the cushion pad and the trim cover. In the seat heater mounting structure, while embedding an insert wire in the bottom of the recessed groove of the cushion pad, a plate-shaped retracting retainer is fixed to the retracting portion of the trim cover, and the edge of the retracting retainer is the edge of the seat heater. A part of the retractable retainer corresponding to the position overlapping the heating wire is cut out to serve as an interference avoiding portion, the retractable retainer is pulled into the concave groove of the cushion pad together with the seat heater, and the retractable retainer and the insert wire are fixed. Seat heater mounting structure.