JP2006215074A - Stretching structure of sheet shape object - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a stretching structure in which framing operation for firmly stretching a sheet shape object in a stretching frame body is easy. <P>SOLUTION: In the stretching structure of the sheet shape object, the sheet shape object 6 is stretched, a peripheral part being attached to frame materials via a member 15 for stretching in the stretching frame body in which long frame materials 12 are framed. The peripheral section of the sheet shape object is bent back, while holding a stick member 26 which is arranged in parallel with a long direction of the peripheral section, and an overlapping section 11 in which the bent back peripheral section and an inner peripheral section of the bent back peripheral section are overlapped is formed. A guide section 13 for guiding in which the frame material guides along the overlapping section is provided and the peripheral section of a part which holds the stick member is engaged to the frame member via the member for stretching in a stick member holding state, stretching to inside of the stretching frame body by forming a ridge prolonged to the long direction of the frame material as the overlapped section is bent along the guide section. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a stretch structure in which a sheet in a stretch frame is stretched.

  Various methods for extending the sheet-like material in the extension frame have been disclosed. For example, a sheet insertion groove is provided at both ends of a substantially U-shaped frame, a bolt mounting hole is provided in a holding frame that is in communication with the sheet insertion groove and a hole for insertion of a holding rod at the end of the sheet is provided, and a fastener is attached. The sheet peripheral portion is fixed to the sheet mounting frame while pulling the sheet by applying a presser member to the peripheral portion of the sheet (see, for example, Patent Document 1) and pushing the presser member into the mounting groove. (For example, refer to Patent Documents 2 and 3).

The former is insufficient for obtaining a stable and strong stretch structure because the stretch tension is concentrated on both ends of the substantially U-shaped frame. The latter includes a mechanism for fixing the edge of the sheet and a mechanism for applying tension to the sheet. The structure is complicated, there are many constituent members, and the stretching operation is troublesome.
JP-A-10-113276 JP 2000-19998 A Japanese Utility Model Publication No. 03-5187

  An object of the present invention is to provide a stretch structure that facilitates an assembling operation for firmly stretching a sheet-like material within a stretch frame.

The gist of the present invention is that a sheet-like object is attached to the frame member via a member for extending and stretched in a stretch frame body formed by framing a long frame member,
The peripheral portion of the sheet-like material is bent back by holding a rod-like member arranged in parallel with the longitudinal direction of the peripheral portion, and the peripheral portion that is bent back and the peripheral portion that is inner than the bent-back peripheral portion An overlapping portion is formed by overlapping the portion,
The frame material includes a guide unit that guides along the overlapping unit,
The peripheral portion of the portion holding the rod-shaped member is engaged with the frame member via the extending member in the state of holding the rod-shaped member,
The overlapping portion is bent along the guide portion to form a ridge extending in the longitudinal direction of the frame member, and has a sheet-like stretch structure that is stretched toward the inside of the stretch frame body. .

In the extended structure, the frame member may comprise a base surface extending in the longitudinal direction of the frame member, and a base wall standing upright from the base surface with its longitudinal direction parallel to the longitudinal direction of the base surface,
The extending member may include a holding portion that holds the peripheral portion of the portion holding the rod-shaped member, and may be fixed to the frame member,
The peripheral portion of the portion holding the rod-shaped member may be surrounded by the holding portion, the base wall, and the base surface.

  The bent back peripheral part and the peripheral part inside the bent back peripheral part may be bonded via a double-sided adhesive tape.

  The extension member may include a fastening portion fastened to the frame member via a fastening screw.

  The guide part may be an edge of the base wall.

In the extended structure, the frame member is located on the side opposite to the base wall of the base surface and extends in the longitudinal direction of the frame member, and the insertion groove is formed on the side of the base surface. A mounting surface positioned in between and parallel to the base surface,
The spreading member is
It may be provided with an insertion plate piece portion that has its surface direction parallel to the longitudinal direction of the insertion groove and is inserted into the insertion groove in its surface direction,
The fastening portion extends from one edge portion of the insertion plate piece portion in a direction substantially orthogonal to the surface direction of the insertion plate piece portion, contacts the attachment surface, and is fastened to the attachment surface via the fastening screw. Can be provided with a fixing plate piece,
The holding portion may be extended from the one edge portion while being bent toward the base wall.

  In the extension structure, the extension member may be long, and its longitudinal direction may be arranged in parallel with the longitudinal direction of the frame member.

  In the extended structure, a locking groove can be provided in the longitudinal direction of the frame member, and the bottom surface of the locking groove can form the base surface and the mounting surface. The side wall may constitute the base wall.

  The extension structure may include a lid plate that covers the locking groove, the lid plate may constitute one side of a long lid member having a substantially L-shaped cross section, and the other side of the long lid member is the frame member. The frame body can be fixed to the frame member by abutting against the side surface of the outer flange.

  The extension structure may include a cover plate that covers the frame member, the cover plate may constitute one side of a long cover member having a substantially L-shaped cross section, and the other side of the long cover member is the side of the frame member. The frame body can be fixed to the frame member in contact with the side surface of the outer flange.

  The extension structure may include a cover plate that covers at least a part of the frame member, and a portion along the guide portion of the overlapping portion may be located between an end portion of the cover plate and the guide portion.

  ADVANTAGE OF THE INVENTION According to this invention, the extending | stretching structure in which the assembly operation and tensioning operation which extend | stretch a sheet-like material firmly in the expansion frame body is easy and can be performed in a short time is provided.

  An embodiment of a stretch structure of the present invention will be described with reference to the drawings. In addition, in this specification, the same code | symbol written over each figure shows the same or similar member and thing. As shown in FIG. 1, the stretch structure 2 of the present invention is a structure in which a sheet-like object 6 is stretched on a stretch frame 4. On the surface of the sheet-like material 6, a message for notification and a pattern 8 are written, and the structure 3 by the extended structure 2 is suitably used as a signboard or a sign.

  In the stretch structure 2, the sheet frame 6 has a peripheral edge 10 in the stretch frame 4 (inner side), and the stretch frame body 4 is configured as a stretch frame 4 via a stretch member (not shown in FIG. 1). It is attached to the frame material 12 and expanded. The surface of the sheet-like object 6 is positioned on the front surface of the extending frame body 4, and a person who sees a sign or a sign faces the surface of the sheet-like object 6 and the front surface of the extending frame body 4.

FIG. 2 shows a cross-sectional configuration of the stretched structure 2 as viewed in a cross-sectional direction of the frame member 12, for example, a cross-section in the AA direction. A locking groove 14 is provided that extends parallel to the longitudinal direction of the long frame member 12 and opens in the front surface of the extending frame body 4 (FIG. 1). The locking groove 14 has a bottom surface 16 substantially parallel to the surface on which the extending frame 4 is stretched, and is parallel to the locking groove 14 in the middle with respect to the width direction of the bottom surface 16, that is, parallel to the longitudinal direction of the frame member 12. The insertion groove 19 is formed with a depth in the depth direction of the locking groove 14.
The bottom surface 16 has a bottom surface 16 a (base surface 7) between the inner side wall 55 (base wall 9) and the insertion groove 19 with respect to the extending frame body 4 of the locking groove 14 and the insertion groove 19. It is comprised from the bottom face 16b (attachment surface 33) of the part between the expansion frame bodies 4 of the groove | channel 14, and the side wall 25 of an outer side. That is, the frame member 12 is positioned opposite to the base wall 9 of the base surface 7, and the insertion groove 19 extending in the longitudinal direction of the frame member 12 is interposed between the insertion groove 19 and the base surface 7. And a mounting surface 33 positioned and parallel to the base surface 7. The bottom surface 16a and the bottom surface 16b are not necessarily flush with each other.

  The expansion member 15 includes a long insertion plate piece 18, a long holding portion 20, and a long fixing plate piece 22. The insertion plate piece 18, the holding portion 20, and the fixing plate piece 22 are arranged with the longitudinal direction parallel to each other, and the insertion plate piece 18 is formed in the insertion groove 19 with the longitudinal direction parallel to the longitudinal direction of the insertion groove 19. It is inserted in the direction of its surface 17. The fixing plate piece portion 22 extends from the long edge portion 23 of the insertion plate piece portion 18 to the outside of the extending frame 4. That is, the insertion plate piece 18 and the fixing plate piece 22 intersect in an L shape. The holding portion 20 has a substantially arc-shaped cross section and extends from the long edge portion 23 while being bent inward of the extending frame 4. The holding portion 20 may have a bowl shape in cross section.

  The peripheral edge 10 of the sheet-like material 6 constituting the peripheral edge 10 (FIG. 1) is bent back around the rod-shaped member 26 arranged in parallel with the longitudinal direction of the peripheral edge 10 and the peripheral edge 10a is bent back. The overlapped peripheral portion 10b is overlapped with the peripheral portion 10b of the inner flange with respect to the sheet-like material 6 from the peripheral portion bent back. The peripheral edge portion 10a and the peripheral edge portion 10b are bonded via an adhesive tape (not shown) in FIG. The peripheral edge portion 10 of the portion holding the rod-shaped member 26 is inserted into the locking groove 14 in the state of holding the rod-shaped member 26 and is surrounded by the inner surface of the curved portion of the holding portion 20, the side surface 27, and the bottom surface 16a. .

  The fixing plate piece 22 is brought into contact with the attachment surface 33 with its longitudinal direction parallel to the longitudinal direction of the insertion groove 19 and is fastened through a fastening screw 29. The fastening screw 29 is preferably a tapping screw. By tightening the fastening screw 29, the peripheral edge portion 10 of the portion holding the rod-shaped member 26 holds the rod-shaped member 26, and the inner side of the curved portion of the holding portion 20, the side surface 27, the base surface 7 and So that the frame member 12 is engaged. Reference numerals 97 and 99 are shallow grooves for positioning the fastening screw 29 respectively formed on the fixing plate piece 22 and the bottom surface 16b (attachment surface 33) so as to extend in the respective longitudinal directions. The fastening screws 29 are preferably provided every 20 to 40 cm in the longitudinal direction of the frame member 12. In addition, if the aspect which fixes the holding part 20 to the frame material 12 has a mechanism which fixes the holding part 20 to the frame material 12, it will not be limited to the aspect shown in FIG.

  The holding portion 20 is preferably long, but a plurality of short ones are arranged in a row in the longitudinal direction of the frame member 12 as long as the holding member 20 and the peripheral portion 10 of the portion holding the rod-like member 26 are held. It may be arranged. The fixing plate piece 22 is also preferably long, but if it has a mechanism for fixing the holding portion 20 to the frame member 12, a plurality of short pieces are arranged in a row in the longitudinal direction of the frame member 12. It may be arranged.

  In the embodiment shown in FIG. 2 in which the holding portion 20 is fixed to the frame member 12, the portion where the fixing plate piece portion 22 is fastened by the fastening screw 29 and the insertion plate piece portion 18 are separated from the inner wall surface of the insertion groove 19. The portion receiving the force is in the relationship between the force point and the fulcrum with respect to the position where the holding portion 20 grips and acts on the peripheral portion 10 of the portion holding the rod-shaped member 26, and effective fastening and gripping are performed. Preferably done.

  The insertion plate piece 18 is preferably long, but a plurality of short pieces may be arranged in a row in the longitudinal direction of the frame member 12. In this case, it is preferable that at least one of the holding portion 20 and the fixing plate piece portion 22 is long.

  In the embodiment shown in FIG. 2, the overlapping portion 11 is in contact with the inner surface of the inner side wall 55 (base wall 9), that is, the side surface 27 with respect to the extending frame 4 (FIG. 1) of the locking groove 14, and An opening edge (end edge) 43 of the inner flange with respect to the extension frame body 4 of the stop groove 14 is bent at a substantially right angle with the longitudinal direction of the end edge as an axis to form a ridge 77 to form an inner edge (inner frame). ), And the tension of the sheet-like material 6 causes a frictional force between the opening edge 43 and the sheet-like material 6 to effect effective stretching. The opening edge (end edge) 43 is a guide portion 13 that guides along the overlapping portion 11.

  Furthermore, since the overlapping portion 11 is bent while abutting against the opening edge 43 (guide portion 13), the overlapping portion 11 receives a compressive force orthogonal to its surface due to the tension of the sheet-like object 6, and the peripheral edge portion 10a. Since the frictional force between the peripheral edge portion 10b and the peripheral edge portion 10b increases, the peripheral edge portion 10a and the peripheral edge portion 10b are reliably prevented from slipping each other, and a stable stretch is achieved. In the mode shown in FIG. 2, the overlapping portion 11 is bent at a substantially right angle while contacting the opening edge (end edge) 43, but may be bent at an acute angle.

  Furthermore, the frame member 12 includes a long fixing piece 36 and is fixed to the foundation frame 34 via the fixing piece 36. The fixing piece 36 extends in a direction opposite to the extending direction of the side wall 25 from a position 31 where the outer side wall 25 and the bottom surface 16 of the outer groove of the locking groove 14 intersect. The longitudinal direction of the fixing piece 36 is parallel to the longitudinal direction of the frame member 12. The fixing piece 36 is brought into surface contact with one side 47 of the frame 38 of the base frame 34 by a fastening screw 37 and fastened and fixed. The other side 51 of the frame 38 is in contact with the outer bottom surface 50 of the frame member 12 at the back of the bottom surface 16. In this way, the frame member 12 is fixed to the base frame body 34 to form the extended frame body 4.

  Further, the lid plate 78 is disposed above the both side opening edges of the locking groove 14 so as to cover the locking groove 14. An end 41 of the inner fold with respect to the expansion frame body 4 of the cover plate is located above the opening edge 43 of the inner fold with respect to the expansion frame body 4 of the locking groove 14, and the opening edge 43 of the peripheral edge portion 10 therebetween. The part that touches is located. It is preferable that the sheet-like material 6 and the cover plate 78 are in contact with each other at this position. A mounting groove portion 46 in which an opening edge 45 of the outer flange with respect to the extending frame body 4 of the locking groove 14 is inserted is formed at an end portion 93 of the outer frame with respect to the extending frame body 4 of the lid plate 78. The lid plate 78 constitutes one side of a long lid member 48 having a substantially L-shaped cross section, and the other side 92 of the long lid member 48 is in contact with the outer side surface of the outer frame with respect to the extended frame body 4 of the frame member 12. Fastened with a fixing screw 35. The frame member 12, one side 47 of the frame 38, and the long lid member 48 may be fastened by a common screw.

  FIG. 3 shows the shape of the sheet-like material 6 that is stretched on the stretch frame 4. The sheet-like object 6 has four corners cut out in a square shape. As a result, each of the four peripheral portions 10 extending linearly can hold the rod-shaped member 26 (FIG. 2) having substantially the same length as the peripheral portion 10.

  FIG. 4 shows a state of the peripheral edge 10 holding the rod-shaped member 26. The overlapped portion 11 is configured by superimposing the bent peripheral portion 10a and the bent peripheral portion 10a on the inner periphery of the sheet-like material 10b. The peripheral edge 10a and the peripheral edge 10b are bonded via an adhesive or a double-sided adhesive tape 54. Due to this bonding structure, the rod-shaped member 26 and the peripheral edge portion 10 of the portion holding the rod-shaped member 26 are stably and strongly formed between the inner surface of the curved portion of the holding portion 20 (FIG. 2) and the inner surface of the locking groove 14. It is pinched.

  The operation of extending the sheet-like object 6 by the extending structure 2 will be described. First, the frame member 12 is fastened and fixed to the base frame body 34 with the fastening screw 37 in the manner shown in FIG. On the other hand, the sheet-like material 6 is processed into the shape shown in FIG. 3, and as shown in FIG. 4, the rod-like member 26 is held at the peripheral edge portion 10, and the peripheral edge portion 10a and the peripheral edge portion 10b are overlapped. Adhesion is performed via an adhesive tape 54. Adhesion with a double-sided adhesive tape is preferred because it is easy to operate.

  The peripheral edge portion 10a and the peripheral edge portion 10b may be fixed by stitching in a state where they are overlapped. Alternatively, it may be fixed by being fused by a high frequency welder or the like.

  As described above, after the rod-like member 26 is held in the sheet-like object 6, the peripheral edge portion 10a and the peripheral edge portion 10b may be overlapped and bonded by bonding, sewing, fusion, or the like. The peripheral edge portion 10a and the peripheral edge portion 10b are overlapped so as to be folded back by a fold along the direction so as to become a cylindrical shape, and bonded by bonding, stitching, fusion, or the like, and then the rod-shaped member is attached to the cylindrical shape. You may insert in the hollow part of a part.

  Next, the rod-shaped member 26 and the peripheral edge portion 10 of the portion holding the rod-shaped member 26 are inserted into the locking groove 14, and the insertion plate piece portion 18 of the expansion member 15 is inserted into the insertion groove 19 while being engaged with the holding portion 20. It is clamped by the side surface 27 of the stop groove 14. Further, the fixing plate piece 22 is fastened through a fastening screw 29 so as to be in contact with the bottom surface of the locking groove 14.

  This operation is performed on each side of the extending frame 4 so that the sheet 6 is expanded on the extending frame 4. Finally, the long lid member 48 is set on the expansion member 15 in the manner shown in FIG. 2 and fastened with the fixing screw 37.

  The operations at each stage of this operation are simple and short-time operations that do not require skill, and are performed reliably without requiring skill. Therefore, the operation of extending the sheet-like article 6 by the extending structure of the present invention is an operation that is performed simply and in a short time without requiring skill, and is an operation that is surely performed without requiring skill. The re-covering operation is also easy.

  Moreover, there are few types of members used in the extending structure of the present invention, which is one factor that facilitates the assembling operation. Further, since the number of types of members is small, the manufacturing cost of the members can be reduced. Further, since this member is made of a member having the same cross-sectional shape in the longitudinal direction and can be easily manufactured by a drawing method or the like, the manufacturing cost can be reduced.

  Further, in the extended structure 2, as shown in FIG. 5, a waterproof packing 66 may be provided at the end 41 to seal between the lid plate 78 and the sheet-like object 6. The structure of this seal is suitably suitable for an internally illuminated signboard or sign having an illumination device inside the extension frame.

  The rod-shaped member (26) used in the extending structure of the present invention is not limited to a round bar, and may be a hexagonal bar 26a as shown in FIG. Other polygonal cross-sections may be used. The cross section may be oval or oval. The material of the rod-shaped member is not particularly limited, and examples thereof include metals such as aluminum, iron, and brass, resins such as polyethylene, polypropylene, and polyamide, and composite materials of resin and reinforcing fibers such as glass fibers. Further, the rod-shaped member is not limited to a rigid member, and may be a flexible member such as a rope or a string as long as the shape is an elongated member. The rope preferably has a relatively hard core material such as a glass fiber strand.

  An example of another aspect of the present invention is shown in FIG. In the extension structure 2a of FIG. 7, the base surface 7a and the wall surface of the base wall 9a are inclined with respect to the surface on which the extension frame 4 is stretched. Thereby, the frictional force at the edge 43a of the base wall 9a (the guide part 13a that guides along the overlapping part 11) between the peripheral part 10a and the peripheral part 10b is further increased, and the peripheral part 10a and the peripheral part 10b are Sliding against each other is more reliably prevented, and stable stretching is achieved. In the embodiment shown in FIG. 7, the locking groove 14 (FIG. 2) does not exist in the frame member 12 a, and the extending member 15 is locked to the frame member 12 a by the base surface 7 and the insertion groove 19. Reference numeral 48a denotes a long lid member fixed to the frame member 12a with fixing screws 35.

  An example of still another aspect of the present invention is shown in FIG. In the extending structure 2b of FIG. 8, the frame member 12b includes a bottom wall 107b having a wall surface parallel to the extending direction and extending in the longitudinal direction of the frame member 12b, and has an upper and lower surface and both side surfaces. A rectangular guide stand 108b is erected from the bottom wall 107b.

  In the extending structure 2b, the extending member 15b has a plate member 18b corresponding to the insertion plate piece 18 in the extending member 15 (FIG. 2) and a guide plate member 106, and the extending member 15b has a cross-sectional shape. A plate member 18b and a guide plate member 106 are erected perpendicularly to the surface direction of the fixing plate piece 22b from both end edges of the fixing plate piece 22b so as to form a U-shape.

On the other hand, the guide stand 108b has a lower surface connected to the bottom wall 107b, and a hollow portion 109b extending in the longitudinal direction of the frame member 12b is formed. In FIG. 8, the hollow portion 109b is formed in a shape in which the lower surface of the guide base 108b and the vicinity thereof are hollowed out, but the guide base 108b may be solid.
The guide member 108b is inserted into a pocket space 111b formed by being surrounded by the plate member 18b, the guide plate member 106, and the fixing plate member 22b, and the extending member 15b is attached to the guide table 108b. A bolt 100 is erected from the upper surface 113b of the guide stand 108b and is inserted through a through hole 102 formed in the center of the fixing plate piece 22b. When the nut 104 screwed into the bolt 100 is screwed, the fixing plate piece portion 22b, and hence the expansion member 15b, is pushed forward by the nut 104 and descends in the axial direction of the bolt 100 as seen in the drawing, and is held by the holding portion 20. The peripheral portion 10 of the portion holding the rod-shaped member 26 and the rod-shaped member 26 descends as viewed in the drawing, and the sheet-like object 6 is stretched. Both side surfaces 115b, 115b of the guide stand 108b serve as guide surfaces for advancing and retreating the expansion member 15b.

  In the stretch structure 2b, the tension can be adjusted by tightening the nut 104, and an optimal stretch state can be easily obtained.

  Further, the long lid member 48b covers the frame member 12b and is fixed to the frame member 12b and the base frame body 34 in the same manner as in FIG. 2, but the long lid member 48b does not have the mounting groove 46 (FIG. 2). .

  In another aspect of the present invention, as shown in FIG. 9, the expansion structure 2 f may be configured such that the expansion member 15 b is pushed by the nut 104 and slides in a direction parallel to the expansion surface. In the extended structure 2f, the base surface 7 of the frame member 12f is orthogonal to the extended surface, and the surface of the base wall 9 is parallel to the extended surface.

  In the embodiment shown in FIG. 9, the overlapping portion 11 is in contact with the inner surface of the side wall 55 (base wall 9) of the locking groove 14 f, and further at the opening edge (end edge) 43 of the locking groove 14 f in the longitudinal direction of the edge. A ridge 77 is formed around the axis, bent, and further reversed in direction to extend in the direction of the extension frame 4 (FIG. 1) (inner side). Further, a guide stand 108b is erected from the base surface 7 in the extending direction.

  An example of still another aspect of the present invention is shown in FIG. In the extension structure 2c of FIG. 10, the frame member 12c includes an insertion groove 19c whose depth direction is parallel to the extension direction, and a tension groove 112 whose depth direction is orthogonal to the extension direction. The peripheral edge portion 10 of the portion holding the rod-like member 26 is placed on the base surface 7c or is positioned facing the base surface 7c with a space therebetween, but the insertion groove 19c is a member constituting the base surface 7b The peripheral edge portion 10 of the portion holding the rod-shaped member 26 is formed on the side opposite to the side where the rod portion 26 is located. The tension groove 112 is formed by extending the inner edge of the base wall 9 with respect to the extending frame body in the longitudinal direction of the frame member 12c with the end edge of the base wall 9 as one side wall.

  The expansion member 15c includes an insertion plate piece 18c inserted into the insertion groove 19c, and a holding portion 20c that holds the rod-shaped member 26 and the peripheral edge portion 10 of the portion holding the rod-shaped member 26. Moreover, the member 15c for expansion | deployment is provided with the connection board part 114 which connects the insertion board piece part 18c and the holding part 20c. The insertion plate piece 18c, the connecting plate portion 114, and the holding portion 20c are arranged in a substantially U-shaped cross section with the connecting plate portion 114 as a base. The outer side surface 115 of the holding portion 20c of the extending member 15c is arranged substantially flush with the extending surface. A side surface 117 opposite to the outer side surface 115 of the holding portion 20 c faces the peripheral edge portion 10 of the portion holding the rod-shaped member 26 and holds the peripheral edge portion 10 of the portion holding the rod-shaped member 26 and the rod-shaped member 26. The inner flange surface 119c of the connecting plate 114 also faces the peripheral edge portion 10 of the portion holding the rod-shaped member 26.

  The extending structure 2c includes a long lid member 48c having a substantially L-shaped cross section. The long lid member 48 c includes a lid plate portion 116 arranged in parallel with the extending surface and a side plate portion 118 orthogonal to the lid plate portion 116. An insertion strip 124 to be inserted into the tension groove 112 is provided on the lid plate portion 116 so that the inside of the long lid member 48 c protrudes from the vicinity of the distal end portion of the lid plate portion 116. The inner side surface of the lid plate portion 116 is in contact with the outer side surface 115 at the base, and the lid plate portion 116 and the holding portion 20c are fastened and fixed by a stop screw 119 at the contact portion.

  In addition, the frame member 12 c is in contact with the side 51 of the base frame 34, which is in parallel with the extending surface, and is in contact with the side 47 which is orthogonal to the base 120 and perpendicular to the side 51 of the frame 38. A fixing piece 36c is provided. The side plate portion 118 is fastened and fixed together with the side 47 by the face-fixing screw 123 and the fixing piece portion 36c. The side plate portion 118 is also in contact with the connecting plate 114 and abuts the connecting plate 114 in a state in which the extending member 15c is pushed inward of the extending frame.

  In the extension structure 2c, the extension member 15c is fastened and fixed to the frame member 12c via the long lid member 48c, and the insertion strip 124 is inserted into the tension groove 112 by the fastening and fixing. Since the sheet 11 is inserted in a state where it is pushed into a substantially U shape, a sufficient tension can be applied to the sheet-like material 6.

  An example of still another aspect of the present invention is shown in FIG. The extending structure 2e in FIG. 11 includes a frame member 12e, an extending member 15e, and a long lid member 48e.

  The frame member 12e has a side surface p, a side surface q, a side surface r, and a side surface s that are parallel to the longitudinal direction of the frame material 12e. The side surface p and the side surface q are parallel, the side surface r and the side surface s are parallel, and the side surface p and the side surface r are orthogonal. The side surface p is arranged substantially flush with the spread sheet-like material 6. The side surface r faces the inside of the extension frame, and the side surface s faces the outside of the extension frame.

  A grooving groove 130 is formed in the middle part of the side surface s in parallel with the longitudinal direction of the frame member 12e and the depth direction is directed to the inside of the extending frame body. Further, a fitting groove 132 is formed on the side surface s at a position between the side surface p and the grooving groove 130 in parallel with the longitudinal direction of the frame member 12e. The fitting groove 132 has an opening that has a depth direction toward the inside of the expansion frame body, and the depth direction is changed to an arc shape when it is deepened, and further advances, the depth direction is parallel to the side surface s. The direction becomes the side p.

  The extending member 15e is formed of a deformed groove-shaped long plate, and has an intermediate plate portion 134 facing or parallel to the side surface s, and a saddle-like cross section from one long edge of the intermediate plate portion 134. Alternatively, the holding member 20e that is bent in the arc shape in the arc member 15e and the other long edge of the intermediate plate portion 134 are erected, viewed in cross-sectional shape at the end portion, bent in an arc shape, and the intermediate plate near the end It is comprised from the engagement bending board part 140 extended toward the outside of the member 15e for extending in parallel with the surface direction of the part 134. FIG.

  The rod-shaped member 26 and the peripheral edge portion 10 of the portion holding the rod-shaped member 26 are inserted into the pockets 130 with the holding portion 20e holding the inside of the bending of the holding portion 20e. The peripheral edge portion 10 of the portion holding the rod-shaped member 26 and the rod-shaped member 26 is positioned such that the side surface p of the grooving 130 is sandwiched between the side wall surface 127 of the flange and the holding portion 20e. The engagement bent plate portion 140 is inserted and locked in the fitting groove 132.

  The overlapping portion 11 extends from the peripheral portion of the portion holding the rod-shaped member 26 around the edge of the 10 holding portion 20e along the outer side surface of the intermediate plate portion 134, and the corner portion where the side surface p and the side surface s intersect ( Ridge) 142 and further toward the inside of the extension frame along side p.

  The gap between the side surface s and the side surface r is larger at the end portion 150 of the side groove s of the side surface s than at the end portion 150 of the flange, and overlap of the portion extending along the intermediate plate portion 134. The outside of the part 11 is substantially flush with the side surface. A long fixing piece 36 extends in parallel with the surface direction of the side surface s, with its longitudinal direction parallel to the longitudinal direction of the frame member 12e at the intersection of the side surface s and the side surface q.

  The long lid member 48e is configured such that a lid plate portion 116e arranged in parallel with the extending surface and a side plate portion 118e orthogonal to the lid plate portion 116e are arranged in an L shape. The lid plate portion 116e is arranged so that the overlapping portion 11 along the side surface p is positioned between the lid plate portion 116e and the side plate portion 118e is positioned between the intermediate plate portion 134 and the overlapping portion 11 along the intermediate plate portion 134 is positioned. To be arranged. The end portion of the side plate portion 118e, the fixing piece portion 36, and one side 47 of the frame 38 of the base frame body 34 are overlapped and fastened and fixed by a fixing screw 135.

  Further, the side plate portion 118 e is in contact with the end portion 150 located on the side surface s between the grooving 130 and the side surface r and is fastened by the fastening screw 29. Thereby, the extending member 15e is fixed to the frame member 12e via the fastening screw 29 and the long lid member 48e.

  In still another aspect of the present invention, as shown in FIG. 12, the side plate portion 118 e may be fastened to the expansion member 15 e by a tapping screw 151 that passes through the overlapping portion 11.

  In FIGS. 6 to 12 of the present specification, there is a portion where hatching for displaying a cross section is omitted for the sake of simplicity.

  The stretch structure of the present invention is suitable for signboards, signs, and other display bodies obtained by stretching a sheet, such as a cloth, film, or tarpaulin, on which an image or message is printed or drawn by inkjet or the like. Applied. Further, the extending structure of the present invention can be applied to both internally illuminated and externally illuminated signs and signs.

  In addition, the present invention can be carried out in a mode in which various improvements, modifications, and changes are added based on the knowledge of those skilled in the art without departing from the spirit of the present invention.

  The extending structure of the present invention is not limited to a signboard or a sign, but is a self-supporting screen, a portable screen, a sewing frame, an embroidery frame, a battery diaphragm, a sunscreen, a filter, a chair backrest, Widely applied to applications such as seats, architectural panels, partition panels, screen expansion in textile printing and screen printing, flat antennas, electromagnetic shielding panels, canvas, and other films and fabrics such as sheets and membranes. Is done.

It is a plane schematic diagram explaining the extending | stretching structure of this invention. It is a section end view showing the mode of the extension structure of the present invention. It is a top view which shows the shape of the sheet-like material used for the extending | stretching structure of this invention. It is a cross-sectional schematic diagram which shows the structure of the peripheral part of the sheet-like material in the extending | stretching structure of this invention. FIG. 3 is a cross-sectional end view showing a mode in which waterproof packing is added to the extended structure shown in FIG. 2. It is a section end view showing an example of other modes of the extension structure of the present invention. It is a section end view showing an example of other modes of the extension structure of the present invention. It is a cross-sectional end view which shows an example of the further another aspect of the extending | stretching structure of this invention. FIG. 9 is a cross-sectional end view showing an example of an embodiment of a stretch structure of the present invention different from the stretch structure shown in FIG. 8. It is a cross-sectional end view showing an example of yet another aspect of the stretch structure of the present invention. It is a cross-sectional end view showing an example of still another aspect of the stretch structure of the present invention. It is a cross-sectional end view showing an example of yet another aspect of the stretch structure of the present invention.

Explanation of symbols

2, 2a: Expanding structure 4: Expanding frame body 6: Sheet-like object 7, 7a: Base surface 9, 9a: Base wall 10: Peripheral part 11: Overlapping part 12: Frame member 13: Guide part 14: Locking groove 15 : Expanding member 16: Bottom surface 19: Inserting groove 18: Inserting plate piece 20: Holding portion 22: Fixing plate piece 26: Rod-like member 29: Fastening screw 33: Mounting surface 34: Base frame 48: Long Cover member 54: Double-sided adhesive tape 78: Cover plate

Claims (9)

A sheet-like object is attached to the frame member via a member for extension and extended in a stretch frame body formed by framing a long frame member,
The peripheral portion of the sheet-like material is bent back by holding a rod-like member arranged in parallel with the longitudinal direction of the peripheral portion, and the peripheral portion that is bent back and the peripheral portion that is inner than the bent-back peripheral portion An overlapping portion is formed by overlapping the portion,
The frame material includes a guide unit that guides along the overlapping unit,
The peripheral portion of the portion holding the rod-shaped member is engaged with the frame member via the extending member in the state of holding the rod-shaped member,
A sheet-like material extending structure in which the overlapping portion is bent along the guide portion to form a ridge extending in the longitudinal direction of the frame member, and the inside of the extending frame is stretched toward the inside. The frame member comprises a base surface extending in the longitudinal direction of the frame member, and a base wall standing upright from the base surface with its longitudinal direction parallel to the longitudinal direction of the base surface,
The expansion member includes a holding portion that holds the peripheral edge portion of the portion holding the rod-shaped member, and is fixed to the frame member,
2. The sheet-like material extending structure according to claim 1, wherein the peripheral portion of the portion holding the rod-shaped member is surrounded by the holding portion, the base wall, and the base surface. The stretch structure for a sheet-like material according to claim 1 or 2, wherein the bent back peripheral portion and the peripheral portion inside the bent back peripheral portion are bonded via a double-sided adhesive tape. 4. The sheet structure extended structure according to claim 1, wherein the expansion member includes a fastening portion fastened to the frame member via a fastening screw. 5. 5. The sheet-like material extending structure according to claim 2, wherein the guide portion is an edge of the base wall. The frame member is positioned on the side opposite to the base wall of the base surface and extends in the longitudinal direction of the frame member, and the frame member is positioned on the side of the base surface with the insertion groove therebetween. A mounting surface parallel to the base surface,
The spreading member is
An insertion plate piece portion that has its surface direction parallel to the longitudinal direction of the insertion groove and is inserted into the insertion groove in its surface direction;
The fastening portion extends from one edge portion of the insertion plate piece portion in a direction substantially orthogonal to the surface direction of the insertion plate piece portion, contacts the attachment surface, and is fastened to the attachment surface via the fastening screw. Comprising a fixing plate piece,
The sheet-like material extending structure according to claim 5, wherein the holding portion extends while bending from the one edge portion toward the base wall. The stretch structure for a sheet-like object according to claim 6, wherein the stretch member is long, and the longitudinal direction of the stretch member is arranged in parallel with the longitudinal direction of the frame member. A locking groove is provided along the longitudinal direction of the frame member, the bottom surface of the locking groove forms the base surface and the mounting surface, and one side wall of the locking groove forms the base wall The spread structure of the sheet-like material according to claim 6 or 7. 9. The device according to claim 1, further comprising a cover plate that covers at least a part of the frame member, wherein a portion along the guide portion of the overlapping portion is located between an end portion of the cover plate and the guide portion. 1. A sheet-like material extension structure described in 1.

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