KR20030018437A - Seat frames assembling structure - Google Patents

Abstract

PURPOSE: Provided is a sheet frame assembly structure which prevents corners of an inner sheet and a rear sheet from being vibrated or floated by workers' weight so that it enables workers to assemble the inner and the rear sheet in a compressed state. CONSTITUTION: The sheet frame assembly structure consists of the inner sheet(8) to reinforce and support a cushion member(15) and the rear sheet(1) to be bound with the inner sheet having an edge of a sheet cover(13) to surround the cushion member. The inner sheet includes a combination projection part(10) at a rear corner, a sill(11) at an external side and a hole(9) at a proper location around the corner. The rear sheet includes a combination groove(2) to be fixed at the combination projection part of the inner sheet and suspended at the internal sill and a clip(4) to be combined with a hole of the inner sheet by a snap.

Description

Seat frame assembly structure {SEAT FRAMES ASSEMBLING STRUCTURE}

The present invention relates to a seat frame assembly structure that can be applied to a variety of chairs as a seat inside the cushion and the plastic injection molding to the outside frame.

A conventional typical sheet assembly structure in which a cushion is placed inside and a plastic injection molding supporting the cushion forms a frame is illustrated in FIG. 5. The seat puts the cushion member 52 on the inner plate 51, which is a plastic injection molding, and covers the seat cover 53 made of cloth. Then, the end of the seat cover 53 enters the back plate 54, which is a plastic injection molding. It is to be combined behind the plate 51 to be able to.

However, under the seat frame assembly structure as described above, there is a problem that the seat cover is damaged and the back plate flows. That is, because the cover is fastened by simply covering the back plate with the edge of the seat cover between the plate and the back plate, the seat cover is chewed at the portion C of FIG. 5 where the end of the plate and the back plate meet, and if it continues, the seat cover Is hurt. This simply covers the inner plate and the rear plate, which causes the bending of the inner plate and the rear plate to occur a lot when the load of the seated person is applied on the cushion member side, especially at the end side. At this time, the end of the back plate is often repeated to come back to the cushion member to return to the appearance is unsightly appearance and durability is also a cause of quality degradation.

It is an object of the present invention to provide an assembly structure of a seat frame that can be assembled to be precisely coupled without flowing by allowing the edge of the inner plate supporting the cushion member and the back plate holding the seat cover behind the inner plate to be snapped together.

1 is an exploded perspective view of a seat frame of an embodiment of the present invention.

2 is a cross-sectional view taken along the line A-A of FIG.

3 is a cross-sectional view taken along the line B-B in FIG.

Figure 4 is a cross-sectional view of the seat frame coupling of an embodiment of the present invention.

5 is a cross-sectional view of a conventional seat frame coupling.

<Explanation of symbols for the main parts of the drawings>

1: back panel 2: coupling required

4: Clip 5: screw

6: head 8: sequel

9: hole 10: coupling protrusion

11: Jaw 12: Cover pressing protrusion

13: Seat cover 14: Rib

15: cushion member

In order to achieve the above object, the present invention provides a seat frame including a back plate which reinforces and supports a cushion member, and a back plate which is engaged with the bottom plate in a state where an end portion of a seat cover surrounding the cushion member enters from a rear surface of the back plate. The core plate protrudes the engaging protrusion at the edge of the rear surface and forms a jaw at the outer side thereof and forms a hole at an appropriate position near the edge, and the rear plate rests on the inside of the jaw while being seated on the engaging protrusion of the inner plate. A recess is formed at the front edge, and a clip capable of snapping to the hole of the plate at a proper position near the edge is mounted.

The present invention according to the configuration as described above, while pressing the back plate on the back of the plate while the end of the seat cover surrounding the cushion member is positioned behind the plate, the clip of the back plate snaps into the holes of the plate and at the same time the coupling portion of the plate It is fitted while being in close contact with the engaging protrusion of the jaw and there is no flow of the plate even when the load of the seated person is applied.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

Figure 1 shows an exploded perspective view of the seat frame, Figure 4 shows a portion of the cross section of the combined state. 2 is a cross-sectional view taken along the line A-A of FIG. 1, and FIG. 3 is a cross-sectional view taken along the line B-B of FIG. In the embodiment of the present invention illustrates a backrest frame of the swivel chair.

As shown in FIGS. 1 and 2, the back plate 1 has a wide upper shape and a narrower bottom shape. The back plate 1 rotates at an edge of the front side (left side of FIG. 1 and upper side of FIG. ) Is formed. And the screw fastening boss 3 is formed in the side closer to this coupling recess 2, and about seven are formed in total in several places. The screw 4 is fastened by the screw 5 after the clip 4 is fitted to the screw fastening boss 3. The clip 4 consists of a head 6 into which the screw 5 can be fitted in the middle as shown in FIG. 4 and a boss 7 constituting the lower body. The head 6 is divided into ten crosses so as to exert an elastic force to be retracted and reopened when fitted to the hole 9 of the plate 8 so that the clip 4 does not fall back into the hole 9.

The inner plate 8 has a wide upper shape and a narrow lower shape as shown in FIGS. 1 and 3, and the engaging plate 10 having a U-shaped cross section is formed at the rear edge thereof and the rear plate is formed on the outer side thereof. The jaw 11 which enters by the thickness of is formed. Coupling protrusion 10 is formed to be accurately coupled to the coupling recess (2) of the back plate (1), out of the coupling protrusion (10) is formed on the outside of the small cover pressing projections 12 to the rear have. The cover pressing protrusion 12 protrudes to increase the pressing force of the end portion of the seat cover 13 when the seat cover 13 is fitted between the engaging recess 2 and the engaging protrusion 10. And a hole (9) in which the clip (4) of the back plate (1) can be snap-fitted in several places on the side closer to the engaging projection (10). In addition, a plurality of ribs 14 are formed on the front surface except for the engaging protrusion 10 at the rear of the plate 8 to cross the cross with ten crosses to increase the strength against bending and torsion.

Therefore, the cushion member 15 is located in front of the inner plate 8, and the end plate is placed behind the inner plate 8 while the seat cover 13 is covered with the cushion member 15, and then the back plate 1 is opened. The assembly is completed when the rear plate is pushed in from the rear. When the back plate 1 is pushed onto the plate 8, a plurality of clips 4 mounted on the back plate 1 are snapped into the holes 9 of the plate 8 at the same time. The engagement is substantially achieved by the head 6 of the clip 4 being retracted and then reopened after passing through the hole 9. When the parts need to be replaced or repaired, the clip 4 is simply pulled out when the screw 5 is loosened. When there is a snap coupling as described above, at the same time the coupling recess (2) is fitted to the engaging projection 10 of the plate 8 and the cover pressing projection (12) formed small in the engaging projection 10 is the seat cover 13 The end is pressed.

In the present invention, when the seat frame is made of a plastic injection molded product from the backrest or seat plate of a chair having a cushion member, the edges of the inner plate and the rear plate are assembled in a precisely compressed state without flowing or lifting according to the load of the seated person. This prevents damage to the seat cover that occurs between the end of the plate and the back plate, and when viewed from the side, prevents the back plate edge from flowing or gaping toward the edge of the plate, which is beautiful in appearance and improves quality. There is.

Claims (1)

A seat frame having a back plate which reinforces and supports a cushion member, and a back plate which is engaged with the bottom plate with the end portion of the seat cover surrounding the cushion member in the rear of the back plate, wherein the bottom plate is coupled to the edge of the back surface. Protruding the part and forming a jaw on its outer surface and forming a hole at an appropriate position near the edge, the back plate is seated on the engaging protrusion of the inner plate while forming a coupling recess at the front edge that can be caught inside the jaw and near the edge The seat frame assembly structure characterized in that the clip is attached to the hole of the inner plate in a suitable position of the snap.