JP2007143670A - Manufacturing method of seat - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily adjust a bearing force exerted by a net material in a cushion structure that bears a sitting load by a tensile force of the net material stretched across a frame structure. <P>SOLUTION: This manufacturing method of a seat 1 elastically bears the sitting load by stretching the net material 40A across a back frame 20. The net material 40A is stretched to the back frame 20 by fixing attachment portions 41 of the net material 40A formed along the frame shape of the back frame 20 to an attached portions 21 formed along the shape of the back frame 20 with the attachment portions stuck to each other, the pulled lengths of the attachment portions 41 pulled toward the corresponding attached portions 21 formed in the back frame 20 is different according to bearing places, and the attachment portions 41 are fixed to the corresponding attached portions 21 formed in the back frame 20 in a state where the tensile force corresponding to the pulled length is applied thereto. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a method for manufacturing a sheet. Specifically, a cushion structure that elastically supports a seating load of an occupant seated on a seat is formed by stretching a sheet-like elastic member such as a net material on a frame-shaped frame structure that forms a skeleton of the seat. The present invention relates to a sheet manufacturing method.

Conventionally, as a cushion structure for a vehicle seat, for example, a structure disclosed in Patent Document 1 is known. In this disclosure, a planar elastic member such as a net material is stretched over the frame structure that forms the skeleton of the seat, and the cushion member such as a urethane pad is elastically supported by the surface by the planar elastic member. Like to do. Thereby, for example, compared to a configuration in which the cushion member is supported by a wire or a point by a wire member such as an S spring, the seating feeling when the occupant is seated on the seat is improved, and the weight of the entire seat structure is reduced. be able to. In other words, since the cushion member is supported by the surface, even if the cushion member is compressed and deformed by the seating load of the occupant, the occupant may feel a foreign object feeling by interfering with local protrusions such as a wire member. Because it disappears. Moreover, since it becomes possible to use a cushion member thinly by this, it is because this weight can be reduced.
By the way, in the configuration in which the seating load of the occupant is supported by the tension of the planar elastic member such as the net material as described above, a part requiring a relatively high support force such as the occupant's waist is locally used. In particular, it is difficult to support by the suitable supporting force. Therefore, in order to deal with such a problem, for example, Patent Document 2 has a configuration in which a portion of the net material that is a planar elastic member that requires a relatively high support force is knitted at a high density. Thereby, a desired supporting force can be exhibited locally at the same site.

JP 2004-135836 A JP 2004-33542 A

  However, in the above-described conventional technique, that is, a technique in which the net material is locally knitted with high density to increase the supporting force, the knitting density is changed every time the sheet type is different, or the part formed with high density is used as a frame. It takes time and effort to accurately stretch the desired position relative to the structure.

  The present invention has been devised as a solution to the above-mentioned problems, and the problem to be solved by the present invention is that the occupant's occupant is able to solve the problem by the tension in which a planar elastic member such as a net material is stretched on the frame structure. In the cushion structure for supporting the seating load, the support force exerted by the planar elastic member can be easily adjusted.

In order to solve the above problems, the sheet manufacturing method of the present invention takes the following means.
First, the first invention elastically supports a seating load of an occupant seated on a seat by stretching a sheet-like elastic member such as a net material on a frame-shaped frame structure forming a skeleton of the seat. A method of manufacturing a seat constituting a cushion structure, wherein the planar elastic member is stretched on the frame structure along the frame shape with respect to the attachment site formed along the frame shape of the frame structure. The mounting portion of the planar elastic member is fixed in a state of being bonded together, and the mounting portion of the planar elastic member depends on the location of the supporting portion of the planar elastic member that supports the occupant seated on the seat. The pulling length that is pulled toward the corresponding attachment site formed on the frame structure is different, and the tensile force corresponding to the pulling length is applied to the frame structure. Do It is intended to be fixed to the mounting site.
Here, the attachment site | part formed in the planar elastic member and the to-be-attached site | part formed in the frame structure are formed continuously or intermittently along the frame shape of a frame structure.
According to the first aspect of the present invention, if the length of pulling the attachment portion of the planar elastic member toward the corresponding attachment portion formed in the frame structure is different, the tension action applied to the planar elastic member The supporting force that supports the seating load of the passenger is also different. Therefore, by changing the length of pulling the attachment portion according to the support portion location that supports the seating load of the occupant, the support force for supporting the portion portion that requires a relatively high support force, such as the waist, for example. Can be increased locally.

Next, according to a second aspect of the present invention, in the first aspect described above, a tension holding step for holding the attachment sites at opposite positions of the planar elastic member in a tensioned state in which they are pulled together, and a tension by the tension holding step. A pressing step of aligning and pressing a corresponding mounting portion formed in the frame structure on the mounting portion of the planar elastic member in a state, and mounting of the planar elastic member abutted by the pressing step An adhering step of adhering and fixing a contact portion between the portion and a corresponding attached portion formed on the frame structure with a heat-adhesive resin applied between the contact portions.
According to the second aspect of the present invention, the planar elastic member is brought into a tension state in which the attachment portion is opposed to the tension direction, for example, in the vehicle width direction or the height direction of the seat, by the tension holding step. Retained. And in a pressing process, the corresponding attachment site | part formed in the frame structure is pressed against the attachment site | part of the planar elastic member made into the said tension | tensile_strength state. In the adhering step, the attachment portion in the pressed state and the corresponding attachment portion are fixed. That is, the frame structure is pressed against the planar elastic member that has been formed in a desired tension state in advance, and is stretched.

Next, according to a third aspect, in the second aspect described above, the tension holding step covers the one side surface of the planar elastic member so as to cover between the support plates that are erected apart from each other. It is performed by pulling the spanned ends on both sides of the support plate that is erected toward the root side on the outside and holding the planar elastic member in a tensioned state, and the pressing step is performed. Place the mounted part formed on the frame structure on the back side of the frame structure in a state where it is aligned with the mounting part set on the other surface of the planar elastic member held in tension. This is performed by pushing the attachment site formed in the frame-shaped frame structure between the support plates by pressing the pressing tool to be pressed against the attachment site of the planar elastic member.
According to the third aspect of the invention, the planar elastic member is held in a state in which the portions on both end sides spanned between the support plates are pulled into the outer side portions of the support plates. Therefore, for example, when the frame structure is formed with an overhanging portion that protrudes toward the outside position of the both support plates, the surface elasticity that is pulled out to the outside of the overhanging portion and the both support plates. Interference with the projecting surface of the member can be avoided.

Next, according to a fourth aspect of the present invention, in the third aspect, the planar elastic member is configured such that the portions on both end sides spanned between the support plates are pulled obliquely toward the base side portions of the two support plates. In the state of being fixed as an inserted temporary tension state, both tensile slopes that are temporarily tensioned toward the base side of both support plates are directed from the outer sides of both support plates to the outer surfaces of both support plates. The pull-in length of the attachment site is adjusted by the push-in length that is pushed toward the outer side surfaces of the both support plates by the push member that is pushed.
According to the fourth aspect of the present invention, the tensile elastic force is applied to the planar elastic member by adjusting both tensile slopes toward the outer surfaces of the two support plates by the pushing member, and the tensile length is adjusted. The

The present invention can obtain the following effects by taking the above-described means.
First, according to the first invention, in the cushion structure that supports the seating load of the occupant by the tension in which the planar elastic member such as the net member is stretched on the frame structure, the supporting force exhibited by the planar elastic member is obtained. Adjustment to increase or decrease locally can be easily performed.
Furthermore, according to the second invention, the planar elastic member formed in a desired tension state can be fixed to the frame structure with high accuracy.
Furthermore, according to the third invention, the planar elastic member is suitable for the frame structure, for example, even in the case where the frame structure has a configuration in which the protruding portion is formed to protrude toward the outer position of both support plates. Can be stretched.
Furthermore, according to the fourth aspect of the invention, it is possible to easily and accurately adjust the pulling length of the planar elastic member.

  Embodiments of the best mode for carrying out the present invention will be described below with reference to the drawings.

  First, the sheet 1 of Example 1 will be described with reference to FIGS. 1 is a perspective view showing a schematic configuration of the sheet 1, FIG. 2 is a cross-sectional view taken along line YY of FIG. 1, and FIG. 3 is a front view showing a state in which the net member 40A is held in a relatively weak tension state. 4 is a front view showing a state in which the back frame 20 is pressed against the net member 40A of FIG. 3, and FIG. 5 is a front view showing a state in which the net member 40A is held in a relatively strong tension state. 6 is a front view showing a state in which the back frame 20 is pressed against the net member 40A in FIG. 5, and FIG. 7 is a perspective view showing a state in which the pads Pa and Pb are assembled to the sheet 1. FIG. In FIG. 1, the cover 1 and the pads Pa and Pb (see FIG. 7) and the like serving as the skin member and the cushion member of the seat 1 are omitted.

As shown in FIG. 1, the seat 1 according to the present embodiment includes a seat back 2 serving as a backrest portion of a seated occupant and a seat cushion 3 serving as a seating portion. In the seat 1, net members 40 </ b> A and 40 </ b> B are stretched on a frame-shaped back frame 20 that forms a skeleton of the seat back 2 and a frame-shaped cushion frame 30 that forms a skeleton of the seat cushion 3. As well shown in FIG. 7, pads Pa and Pb (urethane pads) as cushion members are assembled to the front side surfaces 42a and 42b of the net members 40A and 40B, respectively. Therefore, these pads Pa and Pb are elastically supported with respect to the back frame 20 and the cushion frame 30 (see FIG. 1) by the tension action of the net members 40A and 40B. That is, a cushion structure that can elastically support a seating load of an occupant seated on the seat 1 is configured by the support structure by the pads Pa and Pb and the net members 40A and 40B.
Here, as well shown in FIG. 1, the back frame 20 and the cushion frame 30 correspond to the frame structure of the present invention, and the front side surfaces 42a and 42b correspond to one side surface of the present invention.

The net members 40A and 40B have a net structure formed with a substantially uniform braid density as a whole, but the tension exerted by being stretched on the back frame 20 or the cushion frame 30 is the seating load of the occupant. It becomes the structure which changes according to the support part location which supports. Specifically, as well shown in FIG. 2, for example, the net member 40 </ b> A stretched on the back frame 20 needs a portion closer to the lower side that supports the occupant's waist, that is, a relatively high support force. The portion S is stretched in a state where the tension is increased. Further, the other portion W is stretched in a state where the tension is lowered as compared with the portion S that requires a relatively high support force. Although the net member 40B stretched on the cushion frame 30 shown in FIG. 1 is not shown, it is necessary to have a relatively high support force, ie, a portion closer to the front side that supports the thigh of the occupant. The part to be taken is stretched in a state where the tension is increased. Further, the other portions are stretched in a state where the tension is lowered as compared with the portion where the relatively high support force is required.
More specifically, the net members 40 </ b> A and 40 </ b> B are stretched in a tension state pulled in the vehicle width direction WD of the seat 1, and the tensile force when pulled in the vehicle width direction WD is high or low. Is adjusted in accordance with the position of the support portion that supports the seating load of the occupant. That is, the support elasticity suitable for the support site | part location which supports a passenger | crew's seating load is exhibited by the tension | tensile_strength state of net | network materials 40A and 40B. Thereby, the seating feeling of the whole seat 1 is improved.

Specifically, the net member 40A is stretched on the back frame 20 by the following method.
That is, as well shown in FIG. 1, the net member 40 </ b> A is stretched on the back frame 20 with respect to the attached portion 21 formed along the frame shape of the back frame 20. This is done by fixing the attached portion 41 of the net member 40A in a state of being bonded together. The net member 40A and the back frame 20 are fixed by bonding with a thermal adhesive resin 50 applied to the attachment site 21 of the back frame 20, as well shown in FIG. The adhesion by the thermal adhesive resin 50 may be performed by pasting the back frame 20 coated with the thermal adhesive resin 50 with the net material 40A in a preheated state, or with the thermal adhesion in the state pasted with the net material 40A. The back frame 20 coated with the adhesive resin 50 may be heated. Further, the frame shape of the attachment portion 41 of the net member 40A is formed by a net holding jig 60 that can hold the net member 40A in a tension state pulled in the vehicle width direction WD, as well shown in FIG. It is.

Here, as shown well in FIG. 3, the net holding jig 60 includes a support plate 61 formed as a shape surrounding the outer peripheral edge of the attached portion 21 formed along the frame shape of the back frame 20, and Fixing members 62a, 62b for holding the ends 44a, 44b of the net member 40A, which are spanned over the support plate 61, in a state of being pulled in an oblique direction toward the outer side of the support plate 61; And a fixing base 63 for fixing and supporting the support plate 61 and the fixing members 62a and 62b.
First, the support plate 61 is continuously formed so as to surround the outer peripheral edge of the attachment portion 21 of the back frame 20, but in FIG. 3, the attachments formed on the side frames 22 a and 22 b of the back frame 20. As a shape surrounding the outer peripheral edge of the portion 21, the left and right support plates 61 a and 61 b are shown as being spaced apart in the vehicle width direction WD as seen in FIG. 3. The support plates 61a and 61b are erected in the upward direction in the drawing shown in the figure. Then, the front side surface 42a (the lower surface shown in the figure) of the net member 40A is bridged between the upper surfaces of the support plates 61a and 61b, whereby the inner peripheral edge along the upper surface shape of the support plates 61a and 61b. An attachment part 41 having the same frame shape is formed in the part.
Next, the fixing members 62a and 62b are disposed on the outer side of the support plates 61a and 61b, and are attached to the fixing base 63 so that the relative separation positions with respect to the support plates 61a and 61b can be adjusted and moved. ing.

Therefore, as well shown in FIGS. 3 and 5, by changing the mounting positions of the fixing members 62a and 62b, the end portions 44a and 44b of the net member 40A that is stretched over the support plates 61a and 61b are pulled. It is possible to adjust the pulling length to be different. Specifically, in FIG. 3, the fixing members 62 a and 62 b are shown as being attached at positions close to the support plates 61 a and 61 b, and in FIG. 5, the fixing members 62 a and 62 b are attached at positions separated from the support plates 61 a and 61 b. It is expressed as a state.
For example, when the frame shape of the attachment portion 41 of the net member 40A is formed corresponding to the stretched state of the other portion W (see FIG. 2) described above, this is performed as follows. That is, first, as indicated by phantom lines in FIG. 3, the end portions 44a and 44b of the net member 40A are fixed to the fixing member 62a in a state where the fixing members 62a and 62b are attached at positions close to the support plates 61a and 61b. , 62b is held as a temporary tension state pulled to the mounting position. Next, as shown by the solid line in the figure, the tensile slopes 45a and 45b temporarily pulled in the oblique direction toward the base side portions of the support plates 61a and 61b are supported from both outer sides of the support plates 61a and 61b. , 61b are pushed toward the outer surfaces Oa, Ob of the support plates 61a, 61b by the net tension adjusting jigs 90A, 90B that are pushed toward the outer surfaces Oa, Ob. As a result, the net material 40A is adjusted in the pull-in length pulled in the vehicle width direction WD by the push-in length into which the net tension adjusting jigs 90A and 90B are pushed. In the state in which the pulling length is adjusted, the net member 40A is held in a tensioned state in which a pulling force corresponding to the pulling length is applied by the net tension adjusting jigs 90A and 90B. Thus, the attachment portion 41 of the net member 40A is formed as a frame shape along the upper surface shape of the support plates 61a and 61b. Here, the net tension adjusting jigs 90A and 90B correspond to the pushing member of the present invention.
Further, when the frame shape of the attachment portion 41 of the net member 40A is formed corresponding to the stretched state of the portion S (see FIG. 2) that requires a relatively high support force, it is performed as follows. . That is, first, as shown by phantom lines in FIG. 5, the end portions 44a and 44b of the net member 40A are fixed to the fixing member 62a in a state where the fixing members 62a and 62b are attached at positions separated from the support plates 61a and 61b. , 62b is held as a temporary tension state pulled to the mounting position. Next, as shown by the solid line in the figure, the tensile slopes 45a and 45b temporarily tensioned in the oblique direction are directed toward the outer surfaces Oa and Ob of the support plates 61a and 61b by the net tension adjusting jigs 90A and 90B. Push in. At this time, the indentation length into which the tensile slopes 45a and 45b of the net member 40A are pushed in by the net tension adjusting jigs 90A and 90B is compared with the indentation length when the other portion W (see FIG. 2) described above is formed. become longer. Therefore, the net member 40 </ b> A is held in a state where a high tensile force is applied as a tension state in which the net member 40 </ b> A is long pulled in the vehicle width direction WD as compared with the formation of the other portion W described above.

4 and 6, the net member 40A formed as a tensioned state suitable for the above-mentioned support site portion is on the surface of the back side surface 43a (the upper surface shown in the figure). The corresponding attached portion 21 of the back frame 20 is pressed against the formed frame-shaped attachment portion 41. The operation of pressing the back frame 20 against the back side surface 43a of the net member 40A is performed by a pressing operation of the pressing tool 70 that is brought into contact with the back side of the back frame 20. Here, the back side surface 43a corresponds to the other side surface of the present invention.
Specifically, the pushing operation of the pushing tool 70 is performed by being set on pushing jigs 80A and 80B provided integrally with the net holding jig 60, as well shown in FIG. The pushing jigs 80A and 80B are composed of levers 81a and 81b for pushing operation, and pushing parts 82a and 82b for pushing the pushing tool 70 downwardly in conjunction with the operation of the levers 81a and 81b. 82b. Further, the pushing tool 70 integrally has leg portions 71 a and 71 b that come into contact with the back side of the attachment site 21 by being brought into contact with the back side of the back frame 20. Accordingly, as well shown in FIGS. 4 and 6, by operating the levers 81a and 81b of the pressing jigs 80A and 80B, the pressing tool 70 is brought into contact with the back side of the back frame 20 to be in a tension state. The attached portion 21 of the back frame 20 can be pressed against the attachment portion 41 of the net member 40A. Then, due to the thermal adhesive resin 50 (see FIG. 2) applied to the attachment portion 21 of the back frame 20, the attachment portion 41 of the net member 40 </ b> A in contact with the corresponding attachment portion 21 of the back frame 20. Can be bonded and fixed. In addition, surrogate parts (refer FIG.3 and FIG.5), such as tension | pulling slope 45a, 45b for hold | maintaining the net | network material 40A as a tension | tensile_strength, are cut off and cut off after the said adhesion process.

Here, as well shown in FIG. 1, the side frames 22a and 22b of the back frame 20 are formed in a shape protruding toward the front of the vehicle. The dimension between the projecting portions 23a and 23b of the side frames 22a and 22b is slightly larger than the distance between the support plates 61a and 61b, as well shown in FIGS. Therefore, as well shown in FIGS. 4 and 6, when the back frame 20 is pushed toward the net member 40A, the overhang portions 23a and 23b are stretched toward the outer positions of the support plates 61a and 61b. It is arranged at the position to put out. However, as shown in FIGS. 3 and 5, when the overhanging portions 23a and 23b are pushed into the outer positions of the support plates 61a and 61b, the tensile slope 45a as the overhanging surface that has been temporarily pulled in an oblique direction. , 45b are in a constricted state where they are pushed toward the outer surfaces Oa, Ob of the support plates 61a, 61b. Accordingly, it is possible to avoid interference between the overhanging portions 23a and 23b and the tensile slopes 45a and 45b, and the pressing operation of the back frame 20 can be suitably performed.
Further, as described above, the support plates 61a and 61b are formed in a shape surrounding the outer peripheral edge of the attachment site 21 formed along the frame shape of the back frame 20. Therefore, as well shown in FIGS. 4 and 6, the attached portion 21 can be pressed against the corresponding attachment portion 41 formed on the net member 40A while being pushed between the support plates 61a and 61b.
In addition, about the case where the net | network material 40B shown by FIG. 1 is stretched to the cushion frame 30, since it can carry out similarly to the method mentioned above, detailed description is abbreviate | omitted.

Then, the usage method of a present Example is demonstrated.
That is, when the net member 40A is stretched on the back frame 20, first, as shown in FIGS. 3 and 5, the net member 40A supports the seating load of the occupant by the net holding jig 60. It is held as a tensioned state in which the pull-in length is adjusted according to the support site location (tensile holding step). Next, as well shown in FIGS. 4 and 6, the corresponding attached portion 21 formed on the back frame 20 is aligned on the attachment portion 41 of the net member 40 </ b> A that has been pulled and held in tension. And press (pushing process). Then, the attachment part 41 of the net member 40A and the corresponding attachment part 21 of the back frame 20 are bonded and fixed by the thermal adhesive resin 50 (see FIG. 2) applied to the attachment part 21. When the net member 40A is stretched on the cushion frame 30 shown in FIG. 1, it can be performed in the same manner as described above.
Accordingly, as shown in FIG. 1, the net members 40A and 40B are respectively stretched on the back frame 20 and the cushion frame 30 so that the support elasticity suitable for the support site portion that supports the seating load of the occupant is exhibited. Can be set.

  As described above, according to the method for manufacturing the seat 1 of the present embodiment, in the cushion structure that supports the seating load of the occupant by the tension in which the net members 40A and 40B are stretched to the back frame 20 and the cushion frame 30, the net member 40A. , 40B can be easily and accurately adjusted to locally increase or decrease the supporting force. That is, since the back frame 20 and the cushion frame 30 are pressed against and fixed to the net members 40A and 40B formed in a desired tension state, for example, the net members 40A and 40B are fixed to the back frame 20 and the cushion frame 30. Compared with the method of adjusting the pull-in length while pressing against the wire, it can be stretched with high positioning accuracy. Further, even in the case where the back frame 20 has a configuration in which the protruding portions 23a and 23b having a shape protruding toward the outer positions of the support plates 61a and 61b are formed on the back frame 20, the net member 40A is formed on the back frame 20. It can be suitably stretched.

Although the embodiment of the present invention has been described with one example, the present invention can be implemented in various forms in addition to the above example.
For example, you may comprise as a cushion structure which supports a passenger | crew's seating load only by a net | network material, without attaching a pad to the net | network material stretched by the back frame or the cushion frame.
Moreover, instead of the net material stretched on the back frame or the cushion frame, various planar elastic members such as a cloth material having elasticity and a net material having a so-called three-dimensional braided structure can be applied. is there.
In addition, although the net material is drawn and stretched in the vehicle width direction of the seat, it may be stretched in a state of being pulled in other directions such as the height direction of the seat according to the purpose of use. .
Moreover, the attachment site | part formed in the net | network material, and the to-be-attached site | part formed in the back frame or the cushion frame are either continuously formed along a frame shape, or what is formed intermittently. It does not matter.

It is a perspective view showing a schematic structure of a sheet. It is the YY sectional view taken on the line of FIG. It is the front view showing the state by which the net material was made into the comparatively weak tension state, and was hold | maintained. FIG. 4 is a front view illustrating a state in which a back frame is pressed against the net member of FIG. 3. It is the front view showing the state by which the net material was made into the comparatively strong tension state, and was hold | maintained. It is the front view showing the state which pressed the back frame against the net | network material of FIG. It is a perspective view showing the state where the pad was assembled | attached to the sheet | seat.

Explanation of symbols

1 seat 2 seat back 3 seat cushion 20 back frame (frame structure)
21 Attachment site 22a, 22b Side frame 23a, 23b Overhang site 30 Cushion frame (frame structure)
40A, 40B Net material 41 Attachment part 42a, 42b Front side (surface on one side)
43a Back side (the other side)
44a, 44b End portions 45a, 45b Tensile slope 50 Thermal adhesive resin 60 Net holding jig 61 Support plate 61a, 61b Support plate 62a, 62b Fixing member 63 Fixing base 70 Pushing tool 71a, 71b Leg 80A, 80B Pushing jig 81a, 81b Lever 82a, 82b Pushing part 90A, 90B Net tension adjusting jig (pushing member)
S Parts where a relatively high support force is required W Other parts Oa, Ob Outer surface Pa, Pb Pad WD Vehicle width direction

Claims (4)

A seat constituting a cushion structure that elastically supports a seating load of an occupant seated on the seat by stretching a sheet-like elastic member such as a net material on a frame-shaped frame structure forming a skeleton of the seat. A manufacturing method comprising:
The extension of the planar elastic member to the frame structure is such that the planar elastic member formed along the frame shape is attached to the attachment site formed along the frame shape of the frame structure. It is done by fixing the attachment parts in a bonded state,
The attachment portion of the planar elastic member is pulled toward the corresponding attachment portion formed in the frame structure according to the support portion location of the planar elastic member that supports the occupant seated on the seat. The sheet manufacturing method is characterized in that the tension lengths are different and are fixed to the corresponding mounted portions formed in the frame structure in a state where a tensile force corresponding to the tension length is applied. . It is a manufacturing method of the sheet according to claim 1, Comprising:
A tension holding step of holding the attachment sites at opposite positions of the planar elastic member as a tensioned state pulled together,
A pressing step of aligning and pressing a corresponding mounted portion formed in the frame structure on a mounting portion of the planar elastic member brought into a tension state by the tension holding step;
The abutting portion between the attachment portion of the planar elastic member abutted by the pressing step and the corresponding attachment portion formed on the frame structure is bonded by the heat-adhesive resin applied between the contact portions. Fixing and fixing,
A method for producing a sheet, comprising: It is a manufacturing method of the sheet according to claim 2,
In the tension holding step, one surface of the planar elastic member is covered and supported between support plates that are spaced apart from each other, and the both ends on which the members are stretched are installed. It is performed by pulling toward the outer side of the support plate and holding the planar elastic member as a tensioned state,
In the pressing step, the attached site formed in the frame structure is positioned on the attachment site set on the other surface of the planar elastic member held as the tensioned state. Then, the attachment part formed on the frame-shaped frame structure is pushed between the support plates by the pushing operation of the pushing tool which is brought into contact with the back side of the frame structure, and is pushed onto the attachment part of the planar elastic member. A method for producing a sheet, which is performed by applying the sheet. It is a manufacturing method of the sheet according to claim 3,
The planar elastic member is fixed in a temporary tension state in which the portions on both ends spanned between the support plates are pulled obliquely toward the base side portions of both support plates. Both the supporting plates are pushed by the pushing members in which both the tension slopes temporarily pulled in the oblique direction toward the base side portion of the supporting plates are pushed from both outer sides of the both supporting plates toward the outer side surfaces of the both supporting plates. A method for producing a sheet, characterized in that a pulling length of the attachment portion is adjusted by a pushing length pushed toward an outer surface of the sheet.

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