JP2003290575A - Seat for vehicle and method for terminating the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a seat for vehicles of which the cover material is adequately terminated without using staples and a method for terminating the seat for vehicles. <P>SOLUTION: The seat S for vehicles has a bottom plate 30 and is covered with the cover material 10 having a base lining fabric 12, in which at least part on the rear surface side of the bottom plate 30 is melted and the molten part and the base lining fabric 12 are integrated. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle seat and a terminal treatment method for a vehicle seat, and more particularly to a vehicle seat that does not use staples for joining a skin material and a bottom plate and a terminal treatment for the vehicle seat. Regarding the method.

[0002]

2. Description of the Related Art A vehicle seat 100 provided on a motorcycle or the like has a bottom plate 13 as shown in FIG.
It is formed by placing the cushion material 120 on the surface 0 and covering it with the skin material 110. The terminal portion 110 a of the skin material 110 is fixed to the back surface side of the bottom plate 130 by staples 140.

By the way, conventionally, in various industrial fields, when rigidity is required for a component, a molded product of a fiber reinforced resin is used which is lighter in weight than metal and is easy to manufacture. Further, resin molded products of fiber reinforced resin are also used in automobiles and motorcycle parts and the like.

[0004]

Also for the bottom plate of the vehicle seat, it is preferable to use the above-mentioned fiber reinforced resin because the rigidity can be secured without increasing the weight. However, as described above, since the end portions of the skin material are joined by staples to the bottom plate, in the case of the bottom plate made of resin mixed with fibers, the bottom plate is cracked by the impact of the tucker and the staples when driving the staples. Could occur.

Further, when fixing the end portion of the skin material to the bottom plate by stapling, it is necessary to drive the staple with a tucker while holding the skin material at an appropriate position. Was needed.

An object of the present invention is to provide a vehicle seat in which terminal treatment of a skin material is favorably performed without using staples, and a terminal treatment method for the vehicle seat. Another object of the present invention is to provide a vehicle seat in which a bottom plate having a light weight and high rigidity is provided, and which is suitable for the terminal treatment of a skin material, and a method for terminal treatment of the vehicle seat.

[0007]

According to the vehicle seat according to the first aspect of the invention, the above object is a vehicle seat S which is covered with a skin material 10 having a bottom plate 30 and a back base cloth 12. Thus, at least a part of the bottom plate 30 on the back surface side is melted, and the melted part and the back base cloth 12 are integrated together.

Thus, the vehicle seat S of the present invention is
At least a part of the back surface of the bottom plate 30 is melted, and the back base cloth 12 of the skin material 10 is integrated with this melted portion, so that the end region of the skin material 10 is located on the back surface side of the bottom plate 30. Since it is configured to be fixed, it is possible to perform the end treatment of the skin material 10 without using the staple which has been conventionally used for the end treatment of the skin material 10. Therefore, it is possible to perform the terminal treatment of the skin material 10 without requiring a high degree of skill.

Further, according to the present invention, the bottom plate 3
0, no impact is applied when the stapler is driven in with a tucker. For this reason, it is possible to employ the bottom plate 30 made of a fiber-reinforced resin molded product, which has been difficult to use in the past because it is weak against a local impact. As a result, the rigidity can be secured without increasing the weight of the vehicle seat S.

Further, according to the present invention, the bottom plate 30 is heated to melt the resin, and the molten resin is transferred to the skin material 10.
Since it is soaked in the back base cloth 12 and solidified to bond the skin material 10 and the bottom plate 30, the joint part with the bottom plate 30 is exposed on the surface side of the skin material 10. It is possible to obtain the vehicle seat S that is good in appearance without any trouble.

Further, according to the terminal processing method of the vehicle seat S according to the third aspect, the above problem is solved by the bottom plate 30.
A first step of a terminal treatment method of a vehicle seat S covered with a skin material 10 having a back substrate 12 and comprising heating a surface of a predetermined portion on the back surface side of the bottom plate 30 until it is melted. And the end region of the skin material 10 is overlapped and pressed on the melted predetermined portion to press the skin material 1
A second step of infiltrating the molten resin into the backing base cloth 12 of 0;
Backing cloth 12 of the skin material 10 by solidifying the molten resin
And a third step of integrating the bottom plate 30 with each other are solved.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. The members, arrangements, and the like described below do not limit the present invention and can be variously modified within the scope of the gist of the present invention.

FIGS. 1 to 8 show an embodiment of the present invention. FIG. 1 is a sectional view of a main portion of a vehicle seat of the present invention.
2 to 5 are explanatory views showing the resin melting portion formed on the bottom plate, and FIGS. 6 to 8 are explanatory views showing the terminal treatment process of the vehicle seat.

In this example, the vehicle seat S will be described based on a motorcycle seat. The vehicle seat S includes not only those used for two-wheeled vehicles, that is, land-based motorcycles and scooters, but also seats for snowmobiles and watercrafts. Includes vehicle seats for seats.

As shown in FIG. 1, the vehicle seat S of this example.
Is composed of a skin material 10, a cushion material 20, and a bottom plate 30. Surface material 10 is surface material 1
1 and a backing cloth 12.

The surface material 11 of the skin material 10 is made of a water resistant material such as PVC (polyvinyl chloride resin). The backing fabric 12 is formed of knitted fabric, woolie-processed product such as polyester or nylon, cotton, non-woven fabric, net or the like.

The knitted fabric is a knitted fabric in which threads are knitted in a loop shape. In addition, the Woolly processed product is formed from a synthetic fiber thread imparted with elasticity and bulkiness. As described above, each of the cloth materials forming the back base cloth 12 is configured to have a space between the fibers.

In the vehicle seat S of this example, the bottom plate 30 is heated, and the terminal portion 10a of the skin material 10 is attached to the bottom plate 30 via the molten resin obtained by melting the bottom plate 30. However, since the cloth material that constitutes the back base cloth 12 is configured to have a space between the fibers as described above, the molten resin sufficiently enters the back base cloth 12, and the bottom plate 30 and the skin material 10 are The adhesive strength of is secured.

The cushion material 20 is made of a flexible foam material such as urethane foam, PP (polypropylene) foam, PE (polyethylene) foam, and is placed on the bottom plate 30.

The cushion material 20 is coated on the skin material 10. The cushion material 20 and the skin material 10 may be formed as separate bodies, or the cushion material 20 may be formed.
The skin material 10 and the skin material 10 may be integrally molded.

The bottom plate 30 is formed of, for example, PP (polypropylene), ABS resin or the like, and is a bottom formed using fiber reinforced resin PPG (polypropylene containing glass fiber) or PPT (polypropylene containing filler). The use of the plate 30 is preferable because the rigidity can be secured without increasing the weight of the bottom plate 30. Carbon fibers, for example, are mixed in the PPT as reinforcing fibers.

Next, the terminal processing method of the vehicle seat S of this example will be described. In the terminal treatment step for the vehicle seat S, the first step of heating the surface of a predetermined portion on the back surface side of the bottom plate 30 and the terminal portion 10a of the skin material 10 are superposed on the melted predetermined portion of the bottom plate 30. And pressurize the back base cloth 12 of the skin material 10 to infiltrate the molten resin, and a third step of solidifying the melted resin to integrate the back base cloth 12 of the skin material 10 and the bottom plate 30. It consists of a process and.

In the first step, as shown in FIG. 6, the peripheral edge portion 31 on the back surface side of the bottom plate 30 is heated to melt the resin. For heating, the bottom plate 3
It is performed until the surface of 0 reaches 200-210 degreeC.

As shown in FIG. 2, for example, the heating is performed at a plurality of locations along the peripheral edge 31 of the bottom plate 30 at predetermined intervals. The surface of the bottom plate 30 is melted by heating to form the resin melting portion 33. The terminal portion 1 of the skin material 10 is attached to the resin melting portion 33.
0a is arranged, and the back resin 12 of the skin material 10 is impregnated with the molten resin to be integrated, so that the terminal portion 10a of the skin material 10 is fixed to the bottom plate 30.

As described above, the bottom plate 30
Instead of performing heating at a plurality of points on the peripheral edge portion 31, the heating may be performed continuously along the peripheral edge portion 31 of the bottom plate 30 without providing an interval as shown in FIG.

A belt-shaped resin melting portion 33 is provided at the peripheral edge 31 of the bottom plate 30 by heating continuously along the peripheral edge 31 of the bottom plate 30 without spacing. As shown in FIG. 4, the band-shaped resin melting portion 33 may be provided in two rows or in two or more rows.

Further, in the example shown in FIG. 2, at the peripheral edge portion 31 of the bottom plate 30, the rectangular resin melting portion 3 is formed.
3 is formed, the shape of the resin melting portion is not limited to a rectangular shape, and may be any shape such as a circle, an ellipse, a polygon, or an irregular shape.

Further, the place where the resin melted portion 33 is formed is not limited to the peripheral edge portion 31 of the bottom plate 30 as shown in FIG. 2, but as shown in FIG. It may be the back side surface 32 of the seat portion.

As shown in FIG. 5, when the resin melting portion 33 is provided on the back side surface 32 of the seat surface portion of the bottom plate 30, the shape of the resin melting portion 33 is not limited to the rectangular shape as shown in FIG. Of course, any shape such as a band, a circle, an ellipse, a polygon, and an irregular shape may be used.

The peripheral edge portion 31 of the bottom plate 30
Alternatively, the resin melting portion may be provided on both the back side surface 32 of the seat surface portion. As a result, the terminal portion 10a of the skin material 10 can be bonded to both the peripheral edge portion 31 of the bottom plate 30 and the back side surface 32 of the seat surface portion, and high bondability can be obtained.

At this time, the peripheral edge portion 31 and the back surface 32 of the seat surface portion are provided by continuously providing the resin fusion portion on the side of the peripheral edge portion 31 and the resin melt portion on the rear side surface 32 of the seat surface portion.
The skin material 10 can also be bonded to the boundary portion of the, and the skin material 10 and the bottom plate 30 can be bonded with high adhesion.

The vehicle seat S of this example has a resin melting portion 33.
The terminal portion 10a of the skin material 10 is disposed in the above, and the resin is solidified to integrate the skin material 10 and the bottom plate 30. The type and size of the vehicle seat S, the size of the skin material 10, and the like. The skin material 10 can be more preferably fixed by changing the size and mode of the resin fusion portion 33 according to the type.

For example, in the case of a two-seater vehicle seat S, it is assumed that a larger load than usual is applied to the vehicle seat S. Therefore, a large number of resin melting portions 33 are provided to cover the skin material 10. Make sure that is securely fixed.

In this example, the bottom plate 30 is heated using a heating element. As the heating element, an electrothermal welding device, a hot air welding device, or a heating wire is used. In this example, the electrothermal welding device 40 is used as the heating element.

The electrothermal welder 40 comprises a heating section having a built-in heater. The heating portion is made of a metal having high thermal conductivity, and is made of, for example, aluminum. The heater built in the heating unit generates heat to heat the object in contact with the heating unit.

It is preferable to provide a non-coating film of fluororesin or the like on the heating section 41 because the melted material of the non-heating object is hard to adhere to the heating section 41. Further, even if the melt adheres, it can be easily removed.

The electrothermal welder 40 used in this embodiment is constructed so that heating can be performed over the entire circumference of the peripheral edge portion 31 of the bottom plate 30 without any time difference.

This is the peripheral edge portion 3 of the bottom plate 30.
By heating the entire circumference of No. 1 without any time difference and keeping the molten resin in a uniform state, the molten resin is evenly permeated into the back base cloth 12 of the skin material 10 in the second step described below. This is because it is possible to make them.

The electrothermal welder 40 of this embodiment has a frame shape matching the shape of the peripheral edge 31 of the bottom plate 30 in order to perform heating over the entire circumference of the peripheral edge 31 of the bottom plate 30 without any time difference. Has been formed. Alternatively, it is formed in a shape obtained by dividing this frame shape.

When the electrothermal welding device 40 has a divided shape, the electrothermal welding device 40 may have any cross-sectional shape. The cross-sectional shape of the heating part 41 is formed in a cross-sectional shape such as a rectangle, a circle, an ellipse, and a polygon.

In addition to the above structure, a plurality of electrothermal welders 40 are
It may be arranged according to the shape of the peripheral edge portion 31 of the bottom plate 30. In this case, the plurality of electrothermal welders 40 move toward the bottom plate 30 without any time difference so that the resin melting portion 33 is formed in the same state on the entire circumference of the bottom plate 30 so that the heating operation is performed. It is preferable to perform the control.

The hot-air type welder is conventionally known,
The hot-air blowing nozzle is provided with a hot-air source connected to the nozzle via a duct. During operation of the hot air welder, hot air sent from the hot air source blows out from the nozzle through the duct. Then, the hot air blown from the nozzle is applied to a predetermined portion of the bottom plate 30 to heat it.

When using the hot-air type welder, it is preferable to perform heating over the entire circumference of the peripheral edge 31 of the bottom plate 30 without any time difference, as in the case of using the electrothermal welder 40. Is.

Therefore, for example, a frame having the same shape as the peripheral edge portion 31 of the bottom plate 30 is used, and a plurality of hot air blowing nozzles are installed in this frame so that hot air is blown from the hot air blowing nozzles at substantially the same time. It is better to control.

Alternatively, a heating wire may be used as the heating element. The heating wire is arranged along the peripheral edge of the bottom plate 30. Then, by energizing the heating wire, the entire circumference of the peripheral edge portion 31 of the bottom plate 30 can be heated substantially at the same time.

As for the heating wire, it is preferable that a coating film such as a fluororesin is provided as in the heating portion of the electrothermal welding device 40. Accordingly, the molten resin or the like on the bottom plate 30 is unlikely to adhere, and even if the molten resin or the like adheres, it can be easily removed, which is preferable.

In the second step, as shown in FIG. 7, the end portion 10a of the skin material 10 is attached to the heated portion of the bottom plate 30. The skin material 10, the cushion material 20, and the bottom plate 30 are assembled at least before the second step. Assembling of the skin material 10, the cushion material 20, and the bottom plate 30 may be performed by covering the cushion material 20 and the bottom plate 30 placed on a work table or the like with the skin material 10, or by disposing the skin material 10 in advance. In the mold, cushion material 20 and bottom plate 3
It is performed by setting 0.

The skin material 10 is arranged such that the terminal portion 10a is folded back to the back surface side of the bottom plate 30. At this time, the terminal portion 10a of the skin material 10 is arranged so as to overlap the resin melting portion 33 provided by being heated in the first step.

The end portion 10a of the skin material 10 is attached to the resin melting portion 33 while being pressed. As a result, the back base cloth 12 of the skin material 10 is attached to the resin melting portion 33.
Since the cloth material forming the backing cloth 12 of the skin material 10 is made of a knitted or Woolly processed product and has a space between fibers, a molten resin in which the peripheral edge 31 of the bottom plate 30 is melted Penetrates.

Next, in the third step, as shown in FIG. 8, the molten resin is solidified. In order to cool the molten resin, for example, cold air is blown toward the joint between the bottom plate 30 and the end portion 10a of the skin material 10. At this time, by using a predetermined pressing means, the end portion 1 of the skin material 10
It is preferable to press 0a.

Alternatively, the energization of the heating element that has heated the bottom plate 30 is stopped and cooled, and this is applied to the skin material 10.
The terminal portion 10a may be pressed to perform cooling and pressure bonding.

In this way, the backing cloth 12 of the skin material 10
The molten resin that has penetrated into the back base cloth 12 solidifies, and the back base cloth 12 and the bottom plate 30 penetrate into the back base cloth 12 and are integrated with each other through the solidified resin. In this way, the end portion 10 a of the skin material 10 is fixed to the peripheral edge portion 31 of the bottom plate 30.

[0053]

As described above, according to the present invention, at least a part of the back surface of the bottom plate is melted, and the back base cloth of the skin material is integrated with the melted part, so that the skin The edge region of the material is configured to be fixed to the back surface of the bottom plate, and it is possible to perform the edge treatment of the skin material without using the staple that has been conventionally used for the edge treatment of the skin material. Become. Therefore, it is possible to perform the terminal treatment of the skin material without requiring a high degree of skill.

Further, no impact is applied to the bottom plate when the stapler is driven by the tucker.
Therefore, it is possible to employ a bottom plate made of a fiber-reinforced resin molded product, which has been difficult to use in the past because it is weak against a local impact. This makes it possible to ensure rigidity without increasing the weight of the vehicle seat.

Further, according to the terminal treatment method for a vehicle seat of the present invention, the bottom plate is heated to melt the resin, the molten resin is permeated into the backing cloth of the skin material, and this is solidified to form the skin material. Since it is configured to join the bottom plate and the bottom plate, it is possible to obtain a vehicular seat having a good appearance without exposing the joint portion with the bottom plate on the surface side of the skin material.

[Brief description of drawings]

FIG. 1 is a sectional view of an essential part of a vehicle seat of the present invention.

FIG. 2 is an explanatory view showing a resin melting portion formed on a bottom plate.

FIG. 3 is an explanatory view showing another shape of a resin melting portion formed on the bottom plate.

FIG. 4 is an explanatory view showing another shape of a resin melting portion formed on the bottom plate.

FIG. 5 is an explanatory view showing a resin melting portion formed on the back side surface of the seat surface portion of the bottom plate.

FIG. 6 is an explanatory view showing a terminal treatment step (first step) of the skin material.

FIG. 7 is an explanatory view showing a terminal treatment step (second step) of the skin material.

FIG. 8 is an explanatory view showing a terminal treatment step (third step) of the skin material.

FIG. 9 is an explanatory diagram showing a conventional example.

[Explanation of symbols]

10 skin material 10a terminal part 11 Surface material 12 Back fabric 20 cushion material 30 bottom plate 31 peripheral edge 32 Back side of the seat surface of the bottom plate 33 Resin melting part 40 Electric heat welder S Vehicle seat

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 4F211 AA11 AA15 AD16 AD19 AD20                       AG03 AH26 TA01 TC08 TC22                       TD12 TD18 TH06 TN07 TN24                       TQ01

Claims (3)

[Claims] 1. A vehicle seat having a bottom plate and covered with a skin material having a back substrate, wherein at least a part of the back surface of the bottom plate is melted.
A vehicle seat in which the melted part and the backing cloth are integrated. 2. The vehicle seat according to claim 1, wherein the bottom plate is molded from fiber reinforced resin. 3. A terminal treatment method for a vehicle seat, which is provided with a bottom plate and is covered with a skin material having a backing cloth, wherein the surface of a predetermined portion on the back side of the bottom plate is heated until it melts. And a second step of superimposing a terminal region of the skin material on the molten predetermined portion and pressurizing the molten resin into the back base cloth of the skin material, and solidifying the molten resin to form the skin And a third step of integrating the back base cloth of the material with the bottom plate, the terminal treatment method for a vehicle seat.