KR20040016170A - a chair plate with a membrane and manufacturing process thereof - Google Patents

Abstract

PURPOSE: A chair plate having a membrane and a manufacturing method thereof are provided to reduce the amount of membranes and simplify the manufacturing process without additional equipment. CONSTITUTION: The chair plate having a membrane includes: a heartwood(32) formed along the borderline of a chair plate; a membrane(34) sealed and fixed in the heartwood(32); a first frame(36) injected and molded by the edge unit of the heartwood(32) and the membrane(34); and a second frame(38) fixed in the first frame(36) by a contracting part. In addition, the method for manufacturing a chair plate having a membrane includes the steps of: temporarily fixing a membrane(34) in a closed chain type heartwood(32); positioning the edge of the heartwood(32) and the temporarily fixed membrane(34) in a metal cavity; and forming a frame by filling a plastic resin in the cavity.

Description

Chair plate with a membrane and manufacturing process

The present invention relates to a chair plate having a membrane and a method of manufacturing the same.

The chair plate includes a seat plate on which the user sits and a back plate supporting the user's back. The chair plate has a structure in which the base plate is coupled to the frame, and the base plate is bonded to the cushion member or the fabric. The structure of the chair plate coupled to the frame to provide a good ventilation is also disclosed.

As an example of a chair plate having such a membrane, US Patent No. 6,125, 521 shows a frame 2 having an opening in the center and a membrane assembly 4 covering the opening of the frame 2, as shown in FIG. Consists of. The membrane assembly 4 has a structure in which the carrier part 8 is integrally injection molded along the edge of the membrane 6 in which the fabric is woven in a mesh form. The carrier part 8 is fitted into a channel formed in the frame 2 to form a chair plate.

The membrane assembly 4 is manufactured as follows.

First, as shown in FIGS. 2 and 3, in the stretching machine (not shown), the membrane 6 is pulled in the horizontal direction and clamped at four places in a substantially rectangular shape with the clamp 10, and then the ring-shaped phase, The lower holders 12 and 14 fix the membrane 6 inside the square clamps.

Next, after removing the clamp 10 and the membrane portion outside the upper and lower holders 12 and 14, the channel 16 and the carrier portion 8 for receiving the lower holder 14 are formed. After the membrane 6 fixed by the upper and lower holders 12 and 14 is installed in the lower mold 20 as shown in FIG. 4 having a fine recessed portion 18 to form a cavity (Fig. 5), the fine recessed portion 24 to form a channel 22 for receiving the upper holder 12 and a cavity 26 for forming the carrier portion 8 as shown in FIG. The upper mold 28 is assembled, and the cavity 26 is filled with the plastic resin to form the carrier part 8.

Next, the upper mold 28 and the lower mold 20 are separated, and the upper holder 12 and the lower holder 14 are separated, and the membrane portion protruding out of the formed carrier part 8 is then removed. After removal (trimming), the carrier plate 8 is assembled to the preformed frame 2 to complete the chair plate.

However, the conventional chair plate and a manufacturing method configured as described above require additional equipment such as a separate stretching machine, a clamp and a holder during manufacture, trim the membrane portion protruding to the outside after injection of the membrane, and remove the membrane. Due to the high consumption of the membrane, there was a problem that a separate cover is needed to hide the trimmed portion.

Accordingly, the present invention has been made to solve the above problems, and an object of the present invention is to provide a chair plate having a membrane and a method for manufacturing the same, which can be easily manufactured without additional equipment and reduces the consumption of the membrane and reduces the manufacturing process. There is.

1 is a perspective view of a chair plate having a conventional membrane;

2 and 3 are a plan view and a cross-sectional view showing a state in which a conventional membrane is fixed with a mold and a clamp;

Figure 4 is a plan view showing the lower mold seating the membrane and the frame removed the clamp in Figure 2,

5 is a state in which the membrane fixed by the mold seated on the upper side of the lower mold,

6 is a state in which the lower mold and the upper mold is fixed with the membrane fixed by the frame therebetween;

7 is a state in which the membrane is bonded to the wire during the manufacturing process of the chair plate having a membrane according to the first embodiment of the present invention,

8 is a cross-sectional view taken along the line A-A in FIG. 7,

9 is a perspective view of a chair plate having a membrane according to the first embodiment of the present invention;

FIG. 10 is a cross-sectional view taken along the arrow line B-B in FIG. 9;

11 is a sectional view of a chair plate with a membrane according to a second embodiment of the present invention;

12 is a state diagram in which the membrane is bonded to the rod during the manufacturing process of the chair plate having a membrane according to the third embodiment of the present invention;

13 is a sectional view of a chair plate with a membrane according to a third embodiment of the present invention;

14 is a state in which the membrane is bonded to the plate during the manufacturing process of the chair plate having a membrane according to the fourth embodiment of the present invention;

Fig. 15 is a sectional view of a chair plate with a membrane according to a fourth embodiment of the present invention.

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

30: chair plate 32: heartwood

34 Membrane 36 Upper Frame

38: lower frame 40: finishing member

42: snap portion 44: fastening member

The chair plate having a membrane according to the present invention comprises a core member bent along an edge of a chair plate, a membrane tensioned and fixed to the core member, and a frame molded by wrapping the core member and an edge of the membrane. It is done.

The frame is divided into a first frame and a second frame, the first frame is injection molded by wrapping the edge of the core material and the membrane, the second frame has a structure fixed to the first frame by a fastening means It may be done.

Chair plate having a membrane according to the present invention, the core member bent along the edge of the chair plate, the membrane tensioned and fixed to the core member, and the core member and the edge of the membrane between the fixing means by a fastening means It may be composed of the upper frame and lower frame.

The core member has one member bent to open one side and the closing member is fitted to the open portion to form a closed ring.

The core member may have a structure in which a plurality of members are inserted and fixed by a connection member to form a closed ring.

The core member may have a structure in which a plurality of members are fixed by fastening means to form a closed ring.

The method of manufacturing a chair plate having a membrane according to the present invention comprises the steps of temporarily fixing the membrane to a closed loop core, installing the edge of the core and the temporarily fixed membrane in a mold cavity, and the cavity Filling the plastic resin into the frame is formed.

In the method of manufacturing a chair plate having a membrane according to the present invention, while temporarily fixing the membrane to a core having a closed loop, separately injection molding the upper and lower frames having recesses on which edges of the core and the membrane are seated. And mounting the edges of the core and the membrane to the recessed portions of the injection molded upper and lower frames, and fixing the edges of the core and the membrane by fastening the upper and lower frames with a fastening means. It can also be done.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described in detail, referring an accompanying drawing.

9 and 10 are a perspective view and a cross-sectional view of a chair plate having a membrane according to a first embodiment of the present invention.

As shown, the core 32 is bent along the edge of the chair plate 30, the core 32 is sewn in a circular (sack) to the end of the membrane 34, the fabric woven in a mesh form The upper frame 36 (first frame) is injection molded by wrapping the edges of the core 32 and the membrane 34, and the lower frame 38 (second frame) is formed on the upper frame 36. It is fixed by this fastening means. The membrane 34 may be sewn to the core with the edge thereof tensioned.

The core member 32 is made of a bendable wire or plastic material, and as shown in FIGS. 7 and 8, one member is bent to open one side and the closing member 40 is extrapolated to the open portion, thereby being entirely closed. It is a ring. The finishing member 40 is in the form of a pipe of a predetermined length that is fixed by being pressed and pressed at both ends of the open portion of the core 32 at the same time.

The fastening means for fixing the lower frame 38 to the upper frame 36, the snap portion 42 selectively formed by projections and grooves on the close contact between the upper frame 36 and the lower frame 38 and , The fastening member 44 to compensate for the insufficient fastening force of the snap portion (42).

In the chair plate having the membrane according to the first embodiment of the present invention configured as described above, first, the core member 32 is bent to form the exterior of the chair plate so that one side thereof is open, and then the closing member 40 is formed at both ends of the core member of the open portion. After fixing both ends of the () to form a closed loop, the membrane (32) sewn in a bag-shaped stitched membrane to the core (32) of the closed loop to temporarily fix the membrane (34), and then the core (32) ) And the edge of the temporarily fixed membrane 34 is installed in a mold having a cavity that becomes the appearance of the upper frame 36 to fill a plastic resin in the cavity to form the upper frame 36, and separately injection molding The lower frame 38 is fastened to the upper frame 36 to be completed.

Temporary fixation of the membrane 34 may be achieved by sewing the membrane horizontally and longitudinally to a closed loop core.

In this case, when the upper frame 36 and the lower frame 38 are injection molded, the snap portion 42 having the protrusion and the groove may be formed together, and the upper frame 36 and the lower frame 38 may be formed. It is fixed by the snap part 42, and the fastening member 44 which supplements the fastening force of the said snap part 42 is ensured to fix.

11 is a sectional view of a chair plate with a membrane according to a second embodiment of the present invention.

As shown in the present embodiment, the core member 132 is bent along the edge of the chair plate 130 to form a closed loop by the finishing member 140, and the core member 132 has a mesh shape. The end of the woven membrane 134 is sewn in a circular (seal) to be tensioned, but is separately injection-molded upper frame 136 and the lower frame with the core portion 132 and the edge of the membrane 134 therebetween. 138 is a structure fixed by the fastening means.

Recess portions 136a and 138a on which the edge portions of the core 132 and the membrane 134 are seated are respectively formed in the upper frame 136 and the lower frame 138.

The core material 132 and the membrane 134 and the finishing member 140 is the same as the first embodiment of the present invention.

In addition, although the fastening means of the second embodiment of the present invention is formed of only a plurality of snap portions 142, it may include a fastening member as in the first embodiment.

In the chair plate having the membrane according to the second embodiment of the present invention configured as described above, the core member 132 is bent to form an outer shape of the chair plate so that one side thereof is open, and then the closing member 140 is formed at both ends of the core member of the open portion. After the two ends are fixed to form a closed loop, the membrane 132, which is sewn in the shape of a bag, is tensioned with the closed loop core 132, and the membrane 134 is temporarily fixed. ) And the upper and lower frames 136 and 138 having recesses 136a and 138a on which the edges of the membrane 134 are seated separately, and separately injection molding the upper and lower frames 136 and 138 of the injection molded upper and lower frames 136 and 138. The edges of the core member 132 and the membrane 134 by fastening the upper and lower frames 136 and 138 by seating the edge portions of the core member 132 and the membrane 134 to recess portions 136a and 138a. Finish by fixing the wealth.

Temporary fixation of the membrane 134 may be achieved by pulling the edge of the membrane 134 in a transverse longitudinal direction to the core 132 of a closed loop.

When injection-molding the upper frame 136 and the lower frame 138, the snap portion 142 having protrusions and grooves is also formed. The upper frame 136 and the lower frame 138 are snapped together. 142 is fixed.

Fig. 13 is a sectional view of a chair plate with a membrane according to a third embodiment of the present invention.

As shown, in this embodiment, the core material 232 is formed along the edge line of the chair plate 230, the core material 232 is a circular (bag-shaped end of the end of the membrane 234, the fabric woven in a mesh shape) It is sewn to be tensioned by) and wrap around the edges of the core 232 and the membrane 234, one frame 236 is an injection molded structure, the core 232 is a plurality as shown in FIG. The member 246 is fitted by a plurality of connecting members 248 is fixed to form a closed ring. The member 246 is in the form of a wire or rod, and the connecting member 248 is in the form of a pipe of a predetermined length to be extrapolated to the member 246.

In the chair plate having the membrane according to the third embodiment of the present invention configured as described above, the member 246 is first connected to the connecting member 248 to form a closed loop core 232, and then closed. In the core member 232 of the annular ring, the membrane 234 is temporarily tensioned by tensioning the bag-sewn membrane, and then the edges of the core member 232 and the temporarily fixed membrane 234 are framed 236. It is installed in a mold having a cavity that becomes the appearance of the plastic resin is filled in the cavity to form a frame 236 is completed.

Temporary fixation of the membrane 234 may be achieved by pulling the edge of the membrane 234 in the longitudinal direction in a closed loop core 232.

Fig. 15 is a sectional view of a chair plate with a membrane according to a fourth embodiment of the present invention.

As shown, in the present embodiment, the core material 332 is formed along the edge of the chair plate 330, and the core material 332 has a circular (sack-shaped) end portion of the membrane 334 in which a fabric is woven in a mesh shape. It is sewn to be stretched and tensioned by), one frame 336 is the injection molded structure surrounding the edges of the core 332 and the membrane 334, the core 332 is a plurality as shown in FIG. The member 346 may be fixed by a fastening member 348 such as a bolt to form a closed loop.

In the chair plate having the membrane according to the fourth embodiment of the present invention configured as described above, the member 346 is first fastened to the fastening member 348 to form a closed loop core 332, and then closed. In the core member 332 of the annular ring, the membrane 334 is temporarily tensioned by pulling the membrane sewn in a bag shape, and then the edges of the core member 332 and the temporarily fixed membrane 334 are framed 336. It is installed in a mold having a cavity that becomes the appearance of the plastic resin is filled in the cavity to form a frame 336 is completed.

Temporary fixation of the membrane 334 may be achieved by pulling the edge of the membrane 334 laterally and vertically to the core 332 of a closed loop.

The present invention is not limited to the above embodiment and can be modified in various ways.

According to the chair plate having a membrane according to the present invention and a method of manufacturing the same, a separate stretching machine, a clamp, a holder, and the like are unnecessary at the time of manufacture, and there is no need to trim the protruding membrane part, so that the work process is reduced and the membrane is It consumes less and does not need a separate cover to hide the trimmed part. Therefore, there is an effect that the manufacturing of the chair plate is simple and the manufacturing cost is reduced.

Claims (8)

In a chair plate with a membrane, Core material bent along the edge of the chair plate, A membrane tensioned and fixed to the core, The chair plate having a membrane, characterized in that it comprises an injection molded frame surrounding the core and the edge of the membrane. The method of claim 1, The frame is divided into a first frame and a second frame, The first frame is injection molded by wrapping the core and the edge of the membrane, The second frame is a chair plate having a membrane, characterized in that made of a structure fixed to the first frame by the fastening means. In a chair plate with a membrane, Core material bent along the edge of the chair plate, A membrane tensioned and fixed to the core, And a top frame and a bottom frame fixed to each other by fastening means with the core and the edge of the membrane interposed therebetween. The method according to any one of claims 1 to 3, The core member is a chair plate having a membrane, characterized in that one member is bent and one side is open and the closing member is fitted into the open part to form a closed loop. The method according to any one of claims 1 to 3, The core member is a chair plate having a membrane, characterized in that a plurality of members are fitted by the connecting member is fixed to form a closed loop. The method according to any one of claims 1 to 3, The core member is a chair plate having a membrane, characterized in that a plurality of members are fixed by the fastening means to form a closed loop. In the manufacturing method of the chair plate having a membrane, Temporarily fixing the membrane to a closed looped core, Installing an edge of the core and the temporarily fixed membrane in a cavity of a mold; Filling the plastic resin in the cavity to form a frame comprising the step of forming a frame. In the manufacturing method of the chair plate having a membrane, Temporarily fixing the membrane to the closed loop core, and separately injection-molding the upper and lower frames having recesses on which the edges of the core and the membrane are seated; Seating edge portions of the core and the membrane in the recessed portions of the injection molded upper and lower frames; Fixing the edge portion of the core and the membrane by fastening the upper, lower frame by a fastening means.