JPH0636778Y2 - Seat cushion frame - Google Patents

Description

FIELD OF THE INVENTION This invention relates to seat cushion frames for use in automobile seats.

BACKGROUND ART Normally, in a seat cushion frame of an automobile seat, a large number of spring stop notches are cut out at appropriate intervals on the front frame edge of the front frame part, and the springs are stopped at the front frame part by the notches. Because of the structure employed, wrinkles leaned toward the epidermis at the notch and caused a cut of the epidermis.

Further, Japanese Utility Model Laid-Open No. 56-98052 discloses a seat frame in which an S-shaped spring is hooked on a peripheral wall of the frame, a so-called peripheral flange, or a cut and raised hook. In the frame, reinforcing ribs are formed on both sides of the hole or the cut-and-raised hook, so the fall of the peripheral wall is reinforced, but the dent in the seat frame main body extending from the peripheral wall to the lower surface part. Are formed on the outer peripheral surface of the frame by the reinforcing ribs, the bending strength of the seat / frame body as a beam is reduced, and wrinkles are generated in the skin due to the dents.

Purpose and problem of the invention The purpose and problem of the invention is to provide a seat cushion frame that avoids wrinkles on the skin to prevent the skin from breaking, and that is lightweight and has sufficient rigidity. .

DESCRIPTION OF SPECIFIC EXAMPLES Hereinafter, the seat cushion frame of the present invention will be described based on the specific examples shown in the drawings. FIGS. 1 and 2 show the invention applied to a driver seat of a passenger car. Seat cushion frame example 10
This seat cushion frame 10
In the front frame part 11, the front frame part 11 is bent to the front frame edge 14 and protrudes to the upper surface, and the rear bead is bent to the rear frame edge 15.
17 and a reinforcing rib 12 is longitudinally extended between the front flange 16 and the rear bead 17 from the front flange 16 at an appropriate distance from the front frame portion 11 to the front frame portion 11. It is folded back on the upper surface of the part 11 and protrudes higher than its front flange 16 and, in addition, a plurality of lanced bridg
e) 13 are formed on the rear web 19 of the reinforcing rib 12 at appropriate intervals in the longitudinal direction so that one end of the S-shaped spring 21 can be hooked.

In particular, its stiffening ribs 12 include front and rear webs 18, 19
And, the top wall 20 has been bent back into a trapezoidal cross section.

With such a configuration, the S-shaped spring 21 is formed on the inner side of the outer peripheral surface of the frame.
Hooked by the bridge 13 and fastened to the front frame 11, and the outer peripheral surface of the frame has no holes or dents, so that the skin 22 is wound around the front frame edge 14 and the skin terminal 23 is attached to the rear bead 17. It can be stopped by the hog ring 24.

As a result, the outer skin is prevented from being wrinkled at the front frame portion 11, and the outer skin is also prevented from being broken.

Further, the seat cushion frame 10 is reinforced by the reinforcing ribs 12 to increase the rigidity, and a thin plate material can be used to reduce the weight.

As will be apparent from the specific embodiments of this invention as described above with reference to the drawings, those of ordinary skill in the art to which this invention belongs,
The subject matter of this invention is readily embodied in other aspects which are derived from the nature and substance of the invention and which are objectively admitted to incorporate them. Of course, the contents of this device are indispensable for the establishment of the device according to the subject of the device.

Advantages and Benefits of the Invention As will be understood from the above, the seat cushion frame of the present invention has the front flange bent to the front frame edge and projected to the upper surface, and the rear bead bent to the rear frame edge. A front frame portion having the front frame portion, a front bead portion, a rear bead portion, a front flange portion, a front frame portion, a front frame portion, and a front bead portion; Since it is provided with a reinforcing rib protruding higher than the front flange, and a plurality of lanced bridges formed at appropriate intervals in the longitudinal direction on the rear web of the reinforcing rib so that one end of the S-shaped spring can be hooked. , Holes and dents are omitted from the outer peripheral surface of the frame to prevent wrinkles on the skin from the front of the seat cushion Then, the skin breakage due to the holes or dents is prevented in advance, and the reinforcing ribs improve the bending strength of the front frame part as a beam, and accordingly the frame has sufficient rigidity, and The thin sheet material can be used to reduce the weight, and as a result, it is very useful and practical for automobile seats.

[Brief description of drawings]

1 is a partial perspective view of a seat cushion frame of the present invention applied to a driver seat of a passenger car, and FIG. 2 is a sectional view taken along line 2-2 in FIG. It is a figure. 11 …… Front frame part, 12 …… Reinforcing ribs, 13 …… Lanced bridge.

Claims (1)

[Scope of utility model registration request] 1. A front frame portion having a front flange bent to a front frame edge and protruding to an upper surface, and a rear bead bent to a rear frame edge, and a front flange between the front flange and the rear bead. A reinforcing rib extending in the longitudinal direction at an appropriate distance from the front frame portion, bent back to the upper surface of the front frame portion, and protruding higher than the front flange, and a rear portion of the reinforcing rib. A seat cushion frame comprising a plurality of lanced bridges formed on the web at appropriate intervals in the longitudinal direction so that one end of the S-shaped spring can be hooked.