JPH0511837Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a structure for attaching the end of a seat skin, which is applied to construct a seat installed in a special vehicle such as a large automatic lawn mower or a tractor. It is something.

BACKGROUND TECHNOLOGY In order to process the ends of the seat skin constituting the seat for special vehicles as described above, as shown in FIG. The end of the seat skin 4 that covers the seat pad 3 is located in the section 2, and the end of the seat skin 4 is applied and supported by the belt molding 5 to the stepped part 2 at the bottom frame position, and the belt molding 5 is extended in the longitudinal direction. The end of the seat cover 4 is fixed to the bottom frame 1 by opening a slit 5a provided along the seat and driving a tacker needle 6 into the bottom surface from the inside.

However, in this seat, when the seater's load is applied to the seat surface portion, the seat skin 4 is pulled and the cushion pad 3 is compressed and deformed inward. Along with this, the belt molding 5 is exposed from the front side, and the side part of the belt molding 5 provided with the slit 5a loses its force against the side surface of the step part 2, so that the belt molding 5 is exposed from the front side. 5 is unfavorable because it begins to curl up at the slit 5a.

In addition, when a tensile force is directly applied to the stop hole in the seat cover 4, the end of the seat cover 4 is cut out from the stop hole, and when the seat is exposed to rainwater, the seat cover 4 and the belt molding 5 Rainwater that seeps into the gap between the cushion pads 3 flows around the lower surface of the seat skin 4, and
cannot be prevented from infiltrating.

Problems to be Solved by the Invention The present invention provides a seat skin end fixing structure that can maintain a good body shape over a long period of time and prevent the end of the seat skin from breaking and rainwater from entering the cushion pad. The purpose is to

Means for Solving the Problems In the seat skin end fixing structure according to the present invention, a concave groove is provided at the peripheral edge of the bottom frame that supports the cushion pad by a rising edge and a rising portion that protrude at intervals. The end of the seat skin covering the cushion pad is wrapped around the rising edge located on one side of the concave groove, and the end of the seat skin covering the cushion pad is located inside the concave groove. Fitting the belt molding, and attaching and fixing the belt molding to the bottom frame by driving a tassel needle from the inside opened by the slit of the belt molding, and applying and fixing the end of the seat skin to the rising surface of the rising edge with the belt molding, In addition, the belt molding is configured by engaging the slit-provided side portion of the slit with the rising edge or the rising surface of the rising portion, and fixing the end of the seat skin together with the belt molding to the bottom frame. There is.

Function In this seat skin end fixing structure, the seat skin wraps around the rising edge that protrudes outward from the peripheral edge of the bottom frame and is fastened with the belt molding, so the seat skin is attached by the load of the occupant. Even when a tensile force is applied, the seat skin is supported by the rising edge and the belt molding, so that the thickness of the belt molding is not deformed and is visible from the front side. Since a groove is provided and the belt molding is fitted and fixed together with the end of the seat skin, the thickness of the belt molding is not exposed to the outside at all, and the side part of the belt molding where the slit is provided also has a rising edge or a rising surface of the rising part. Since it does not curl up due to being engaged with the paper, it can be maintained in a good appearance for a long period of time. In addition, with this seat skin end fixing structure, the end of the seat skin is fixed and fixed inside the groove, which prevents rainwater from entering the cushion pad. Since it is fixed to the bottom frame by being held down by a belt molding inside, the tensile force applied to the seat skin is received by the rising edge and the belt molding, so there is no possibility of the end of the seat skin being cut off by the tack needle.

Embodiment The following will be described below with reference to FIG.

This seat skin end fixing structure is applied to assemble seat backs or seat cushions for seats installed in special vehicles such as large automatic lawn mowers and tractors. Specifically, a cushion pad 11 made of urethane foam or the like is assembled to a bottom frame 10 made of polypropylene or the like including a back frame or a seat frame, and a seat skin 12 made of polyvinyl chloride or the like is attached to the seat surface side of the cushion pad 11. It is applied to fix the end of the seat skin 12 to the peripheral edge of the bottom frame 10.

This bottom frame 10 has a rising dimension h corresponding to at least the thickness of a belt molding, which will be described later.
A rising edge 13 is provided so as to protrude outward from the peripheral edge. Further, a similar rising portion 14 is provided on the outer circumferential surface of the bottom frame 10 at an interval w slightly wider than the width of the belt molding. These rising edges 1 and rising portions 14
A recessed groove 15 into which a belt molding can be fitted is formed along the peripheral edge of the bottom frame 10 with each of the upright surfaces 13a and 14a.

The end of the seat cover 12 that encases the cushion pad 11 is positioned inside the recessed groove 15 by rolling up the rising edge 13.
The end of the seat cover 12 is supported by a belt molding 16 fitted into the inside of the recessed groove 15. The belt molding 16 is a hollow resin member having a cross section that is approximately C-shaped or box-shaped and has a side that can be opened by a slit 16a along the longitudinal direction.

This belt molding 16 is fitted into the groove 15 so that the end of the seat skin 12 is pushed inside the groove 15, and the upper side is bent upward from the slit 16a, and the tacker needle 17 is driven into the bottom surface from the inside of the belt molding 16. It is fixed to the bottom frame 10 together with the end of the outer skin 12. After this, the belt molding 16 elastically restores the rolled-up upper side,
The side portion where the slit 16a is provided is the rising portion 14.
It is attached and fixed to the bottom frame 10 so as not to turn up by engaging with the upright surface 14a of the bottom frame 10.

With the seat skin end fixing structure configured in this way, even if the seat skin 12 is pulled due to the load of the occupant, the shape is maintained by counteracting the tensile force with the rising edge 13 and belt molding 16. Therefore, the thickness of the belt molding 16 is not exposed on the front side. In particular, since the concave groove 15 is formed on the peripheral edge of the bottom frame 10 from the rising edge 13 and the rising portion 14, the belt molding 16 does not expose its thickness to the outside at all, and the side where the slit 16a is provided. Since the parts are attached so that they do not roll up, it can be assembled into an extremely aesthetically pleasing piece. In addition, even if the end of the seat skin 12 is fixed with the tassel needle 17, the tensile force applied to the seat skin 12 is received by the rising edge 13 and the belt molding 16, so that stress is applied to the fixing hole of the tassel needle 17. It is possible to prevent the sheet skin 12 from being cut off at the end without concentrating. Furthermore,
Even if rainwater enters through the gap between the seat skin 12 and the belt molding 16, it can be prevented from entering the cushion pad 11 by the rising edge 13 and the groove 15, so that good cushioning properties can be maintained for many years.

Effects of the invention As described above, according to the seat skin end fixing structure according to the present invention, the end of the seat skin can be fixed to the bottom frame in a manner that is aesthetically pleasing and maintains sufficient mechanical strength. Not, but
It is also possible to prevent rainwater from entering the cushion pad, allowing good cushioning properties to be maintained for many years.

[Brief explanation of the drawing]

FIG. 1 is a partial sectional view showing a seat skin end fastening structure according to the present invention, and FIG. 2 is a partial sectional view showing a seat skin end fastening structure according to a conventional example. DESCRIPTION OF SYMBOLS 10...Bottom frame, 11...Cushion pad, 12...Seat skin, 13...Rising edge, 13a...Rising surface of rising edge, 14...Rising portion, 14a...Rising surface of rising portion, 15... Concave groove, 16...belt molding, 16a...belt molding slit, 17...tacker needle.

Claims (1)

[Scope of utility model registration request] Rising edges 1 projecting at intervals from the peripheral edge of the bottom frame 10 supporting the cushion pad 11
3 and the rising portion 14, and by wrapping the rising edge 13 located on one side of the groove 15, the end of the seat skin 12 covering the cushion pad 11 is located inside the groove 15, A hollow belt molding 16 whose sides can be opened with longitudinal slits 16a is fitted into the groove 15,
The belt molding 16 is attached and fixed to the bottom frame 10 by driving the tacker needle 17 from the inside opened by the slit 16a of the belt molding 16, and the end of the seat skin 12 is applied to the rising surface of the rising edge 13 using the belt molding 16. and by engaging the side portion of the slit 16a of the belt molding 16 with the rising surface of the rising edge 13 or the rising portion 14, and attaching the end of the seat skin 12 together with the belt molding 16 to the bottom frame. 10. A seat skin end fixing structure characterized by being fixed to a seat skin.