JP6529447B2 - Seat tension - Google Patents

Description

  BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a sheet stretching body used for a signboard or the like, in which a sheet is stretched on a supporting mounting material.

  In large outdoor signboards and the like, a frame in which an FF (flexible face) sheet is stretched is used. In such a signboard, the structure of the portion for attaching the sheet to the frame has been as shown in Patent Document 1 conventionally. That is, the groove portion is provided on the outer peripheral side of the frame, and the pressing member for winding and holding the end portion of the sheet in the groove portion is screwed.

Patent No. 5615670 gazette

  However, in such a conventional structure, while maintaining the sheet in a stretched state, the end portion has to be pressed by a pressing member and screwed, which takes time and labor.

  The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a sheet stretching apparatus that can be easily installed.

  The present invention comprises a mounting material, a sheet, a tension tool, and a holder, the tension tool being attached to the mounting material, the holder having a receiving portion and a pressing member, and the receiving portion being The recess has a recess that is open on the front side and into which the presser can be inserted from the opening, and the recess has a guide slant wall, a side abutment wall, a front abutment wall, and a rear abutment wall. The guide oblique wall guides the insertion of the presser, and the presser, in a state where the sheet is wound, the front side, the rear side and the side face are respectively the front abutment wall and the rear abutment wall of the recess. And a lateral abutment wall, wherein the tensioning device pulls the holder to the attachment side.

  According to the present invention, the sheet can be stretched by attaching the holder holding the sheet to the tensioning tool. And since a sheet | seat can be hold | maintained by a holding tool only by inserting a holding tool in a recessed part, construction is easy.

It is a longitudinal cross-sectional view of a sheet | seat attachment part. It is a front view of a sheet | seat attachment part. The tension tool is shown, (a) is a side view, (b) is a rear view. A holder is shown, (a) is a side view, (b) is a rear view. (A) And (b) is explanatory drawing of the attachment method of a holding tool. It is explanatory drawing that a hooking part is rotatable with respect to a hooked part. (A)-(d) is explanatory drawing of the tensioning process of a sheet | seat. It is a whole front view of a sheet | seat tension body. It is a whole longitudinal cross-sectional view of a sheet | seat tension body.

  Hereinafter, embodiments of the present invention will be described based on the drawings. Although this sheet tensioning body is used for various uses, here, the case where it is used as a signboard installed outdoors is shown. Specifically, as shown in FIGS. 8 and 9, the sheet 2 is stretched on the inner peripheral side of the rectangular frame, and the front side of the sheet (the front side of FIG. 8, the left side of FIG. 9) On the surface, characters, patterns, etc. for display purpose are drawn. In FIG. 8, the sheet 2 and a cover 8 described later are shown in a transparent manner. The frame is formed by framing the mounting material 1 in four rounds, and each mounting material 1 is formed by welding two L-shaped angles by welding as shown in FIG. 1, It has a front side expected surface 11 extending toward the front side, and a rear side expected surface 12 located on the outer peripheral side of the front side expected surface 11 and extending toward the rear side.

  Then, as shown in FIG. 1 and FIG. 2, the sheet 2 is attached to the attachment 1 by the tension tool 3 and the holder 4. In addition, in FIG. 2, the sheet | seat 2 and the below-mentioned cover 8 are permeate | transmitted and shown in figure. As shown in FIG. 8, the tensioning tool 3 and the holding tool 4 are attached side by side at predetermined intervals along the longitudinal direction of each attachment 1. The tension tool 3 is attached to the mounting material 1, and the holder 4 holds the end portion of the sheet 2, and the tension tool 3 pulls the holder 4 to the outer peripheral side (mounting material 1 side). Is stretched.

  As shown in FIG. 3, the tension tool 3 is attached to the shaft portion 33 extending in the inner and outer peripheral directions and the inner peripheral end (the end opposite to the mounting material 1) of the shaft portion 33. In FIG. 2 and FIG. 3 (b), it has a hooked portion 31 extending in the left and right direction), and is generally T-shaped as a whole. Of the total length of the shaft portion 33, approximately 2/3 on the outer peripheral side is a screw portion 34 forming a screw thread, and approximately 1⁄3 of the inner peripheral side is a flat plate portion 35 in the form of a flat plate . On the other hand, the hooked portion 31 is a member having a substantially U-shaped cross section that opens toward the inner peripheral side, and the outer peripheral side surface is formed in a substantially arc shape convex toward the outer peripheral side. Further, a hole 36 is formed on the outer peripheral side surface of the hooked portion 31, and the inner peripheral end portion of the flat plate portion 35 is inserted into the hole 36 and axially supported from the front and rear direction. Therefore, the hooked portion 31 can rotate around the longitudinal axis with respect to the shaft portion 33 by the clearance between the hole 36 and the flat plate portion 35. Furthermore, an urging member 32 made of a spring is externally inserted in the screw portion 34 of the shaft portion 33, and the inner peripheral end of the urging member 32 is fixed to the inner peripheral end of the screw portion 34. is there. Then, the tension tool 3 configured in this way is inserted from the inner peripheral side into the hole formed in the front prospective surface 11 of the mounting material 1, and the nut 37 is screwed and attached to the screw portion 34 from the outer peripheral side. By rotating the nut 37, the shaft 33 and the hooked portion 31 move in the inner and outer circumferential directions. The outer peripheral side end of the biasing member 32 abuts against the inner peripheral side surface of the prospective front surface 11 of the mounting member 1, and the shaft 33 and the hooked portion 31 are on the inner peripheral side with respect to the mounting member 1 (holder 4 Side).

  Further, as shown in FIG. 4, the holder 4 has a hooking portion 41 located on the outer peripheral side (attachment 1 side), a holding portion 42 located on the inner peripheral side (opposite to the mounting material 1), and Front facing wall 43 connecting the two. The hooking portion 41 is formed from the outer peripheral end of the front side viewing wall 43 toward the rear outer peripheral direction, and has a substantially semicircular arc shape protruding toward the outer peripheral side, as shown in FIG. It has a size in which the hooked portion 31 of the pulling tool 3 is accommodated inside. The hooking portion 41 and the front-side viewing wall 43 form a notch 44 at the center of the mounting material 1 in the longitudinal direction (left and right direction in FIG. 2 and FIG. 4B), and are separated into left and right . As shown in FIG. 2, the hook portion 41 is hooked to the hooked portion 31 of the tension tool 3 from the front side so that the shaft 33 of the tension tool 3 is inserted into the notch 44. In this state, the holder 37 is pulled to the outer peripheral side by rotating the nut 37 of the pulling tool 3 to move the shaft portion 33 and the hooked portion 31 to the outer peripheral side.

  Further, the holding portion 42 includes the receiving portion 5 formed from the inner peripheral end of the front side viewing wall 43 toward the rear inner peripheral direction, and the separate pressing tool 6. The receiving portion 5 has a recess 51 opened toward the front side, the width of the opening is such that the press 6 can pass, and the internal space of the recess 51 is larger than the press 6, and the opening is open And the presser 6 can be inserted. The recess 51 is expected to extend from the inner peripheral end of the front viewing wall 43 toward the inner peripheral side from the inner peripheral end, and from the inner peripheral end of the front viewing wall 43 toward the rear A wall 56, a rear viewing wall 57 extending from the rear end of the potential wall 56 toward the inner periphery, and a guide extending from the inner peripheral end of the rear viewing wall 57 toward the front inner periphery A diagonal wall 55, a rear contact wall 54 extending inwardly from the inner peripheral end of the guide diagonal wall 55, and a side extending forward from the inner peripheral end of the rear contact wall 54 It is formed by the one abutment wall 52 and opens from between the front abutment wall 53 and the side abutment wall 52. The inner peripheral end of the guide oblique wall 55 is located on the inner peripheral side relative to the inner peripheral end of the front contact wall 53. In addition, a triangular wave-shaped uneven portion 58 is provided on the inner side surface (surface on the inner space side of the recess 51) of the side contact wall 52, the front contact wall 53, and the rear contact wall 54. Furthermore, a screw hole 59 for attaching a pressing tool 7 described later is formed at the center of the rear viewing wall 57 in the longitudinal direction (left and right direction in FIG. 2 and FIG. 4B) of the mounting material 1 is there. On the other hand, as shown in FIG. 1 and FIG. 2, the presser 6 is a rod-like member having a rectangular cross section extending along the longitudinal direction (left and right direction in FIG. 2) of the mounting material 1. Is about three times as long. On the surface, a triangular wave-shaped uneven portion 61 is provided, which engages with the uneven portion 58 of the receiving portion 5. As shown in FIG. 8, the pressers 6 are arranged in a substantially continuous manner with the adjacent pressers 6 with a narrow gap therebetween, and according to the alignment position of the pressers 6, a plurality of tensioning tools 3 for the mounting material 1 The mounting positions of the plurality of holders 4 relative to the seat 2 are determined.

  Then, as shown in FIG. 1, the end portion of the sheet 2 is wound from the front side to the presser 6, and the presser 6 is inserted into the recess 51 of the receiving portion 5 together with the sheet 2. With the sheet 2 wound, the presser 6 contacts the side contact wall 52 with the inner circumferential side surface (side surface) sandwiching the sheet 2, and the front side sandwiches the sheet 2 with the front contact wall 53. The rear side abuts against the rear abutment wall 54 with the sheet 2 interposed therebetween. Thus, the holding portion 42 is held by sandwiching the sheet 2 between the presser 6 and the inner side surface (the side contact wall 52, the front contact wall 53, and the rear contact wall 54) of the recess 51. The sheet 2 is held, and in particular, since the concavo-convex portion 61 of the presser 6 and the concavo-convex portion 58 of the concave portion 51 mutually engage and bite into the sheet 2, the sheet 2 is held more firmly.

  Furthermore, as shown in FIGS. 1 and 9, a cover 8 having a substantially L-shaped cross section is attached to the peripheral edge of the sheet stretching member. The cover 8 is fixed to the rear side expected surface 12 of the mounting material 1 and hides the mounting material 1, the tension tool 3 and the holder 4 when the sheet stretching body is viewed from the front, and only the sheet 2 is visible. It is done like that.

  The configuration of each part such as the tension tool 3 and the holding tool 4 is as described above, and subsequently, the construction procedure for stretching the sheet 2 will be described. First, the end of the sheet 2 is wound around the presser 6, and the presser 6 is inserted together with the sheet 2 from the opening of the recess 51 of the receiving portion 5. At this time, as shown in FIG. 5A, the presser 6 can be inserted along the guide oblique wall 55 from the front inner circumferential direction. This is because the inner peripheral end of the guide oblique wall 55 is located on the inner peripheral side of the inner peripheral end of the front abutment wall 53, and the inner surface of the guide oblique wall 55 (the internal space of the recess 51 This is because the distance between the side surface) and the inner peripheral end of the front abutment wall 53 is wider than the short side width of the cross section of the presser 6. In addition, since the unevenness is not formed on the inner side surface of the guiding slant wall 55, the unevenness portion 61 of the holding tool 6 is not caught, and the holding tool 6 is guided by the guiding slant wall 55 for smooth insertion. It can be inserted. Next, as shown in FIG. 5B, the presser 6 inserted in the recess 51 is rotated so that the outer peripheral side portion faces forward and the inner peripheral side portion faces rearward. Thus, the presser 6 contacts the front abutment wall 53, the rear abutment wall 54 and the side abutment wall 52 with the front side, the rear side and the inner peripheral side, and the presser 6 and each wall surface The holding portion 42 holds the sheet 2 in between. And only by this, since the concavo-convex part 61 of the pressing tool 6 and the concavo-convex part 58 of the concave part 51 mutually engage and bite into the sheet 2, the sheet 2 is firmly held, but in order to improve the certainty more The press 7 made of a screw is screwed into the screw hole 59 of the rear side attachment wall 57 from the rear side. The pressing tool 7 abuts against the pressing tool 6 from the rear side and presses it against the front contact wall 53 to hold the sheet 2 more firmly, and prevents the pressing tool 6 from rotating in reverse, thereby ensuring the sheet 2 Hold on. The above is repeated, and the holder 4 is attached over the entire circumference of the sheet 2 so that the retainers 6 are substantially aligned. Next, the tension tool 3 is inserted from the inner peripheral side into each of the holes formed along the longitudinal direction in the front prospective surface 11 of the mounting material 1 from the inner peripheral side, and the nut 37 is screwed from the outer peripheral side Install. At this time, by tightening the nut 37 so that the outer peripheral side end portion of the biasing member 32 abuts on the inner peripheral side surface of the front prospective surface 11, the biasing member 32 is compressed and contracted. The portion 33 and the hooked portion 31 are urged toward the inner peripheral side. Next, the hooking portion 41 of the holder 4 holding the sheet 2 by the holder 42 is hooked on the hooked portion 31 of the tensioning tool 3. At this time, the shaft portion 33 of the tensioning tool 3 is inserted into the notch portion 44, and the hooking portion 41 is hooked to the hooking portion 31 from the front side, and the hooking portion 31 is accommodated inside the hooking portion 41. Since the hooking portion 41 is substantially arc-shaped, as shown in FIG. 6, the hooking portion 41 is rotatable around the longitudinal axis of the mounting member 1 with respect to the hooked portion 31, and the hooked portion 41 receives the hooking portion 41. Since the outer peripheral side surface of the hooking portion 31 is also substantially arc-shaped, the hooking portion 41 rotates smoothly. Therefore, as shown in FIG. 7A, while maintaining the posture of the tensioning tool 3 in which the shaft 33 is perpendicular to the front prospective surface 11 of the mounting material 1, the holder 4 is viewed from an arbitrary angle (see FIG. Then, it can be hooked from the front inner circumferential direction). Further, even after the hooking, the holder 4 is rotated around the longitudinal axis of the mounting material 1 with respect to the tensioning tool 3 in a state where the hooking portion 41 of the holding tool 4 is hooked on the hooked portion 31 of the tensioning tool 3 Since the holder 4 freely rotates in accordance with the direction of the sheet 2 while keeping the posture of the tension tool 3 because it is free, the hooks 4 are hooked even when sequentially hooked on the tension tool 3 Movement is not impeded to the part where it has been completed, and smooth tensioning is possible. Then, when the hook portions 41 of all the holders 4 are hooked on the hooked portion 31 of the tension tool 3, as shown in FIG. 7B, the nuts 37 of the respective tension tools 3 are tightened. Then, the shaft portion 33 and the hooked portion 31 move to the outer peripheral side, the holder 4 is pulled to the outer peripheral side, and as shown in FIG. 7C, it becomes parallel to the shaft portion 33. Then, when the nut 37 is further tightened, the sheet 2 is also pulled from the periphery to the outer peripheral side as the holder 4 is pulled to the outer peripheral side, and as shown in FIG. Finally, the cover 8 is attached to the mounting material 1 to cover the mounting material 1, the tensioning tool 3 and the holder 4.

  According to the sheet stretching body configured in this manner, the hooking portion 41 of the holder 4 holding the sheet 2 is hooked on the hooked portion 31 of the tensioning tool 3 and the tensioning tool 3 moves the holder 4 to the outer peripheral side The sheet 2 can be stretched by pulling. And since the to-be-held part 31 of the tension tool 3 is always protruded and located in the inner peripheral side from the attachment material 1 by the biasing member 32, it is easy to hook the hooking part 41 of the holder 4. When the biasing member 32 is not provided, especially in the lower side and the vertical side of the sheet stretching body, the hooked portion 31 is pulled toward the mounting material 1 side, and the hooked portion 31 is hooked when hooking the hooking portion 41 of the holder 4. Although the workability is poor, in the present invention, the construction is easy without requiring such labor. Furthermore, the biasing member 32 also functions as a locking for the nut 37 fixing the tensioning tool 3 to the mounting member 1. Further, when holding the sheet 2 by the holder 4, it is only necessary to insert the press 6 into the recess 51, so that the construction is easy also in this point. At this time, the inner peripheral end of the guide oblique wall 55 of the receiving portion 5 is located on the inner peripheral side of the inner peripheral end of the front contact wall 53, and the inner side surface of the guide oblique wall 55, Since the distance between the front contact wall 53 and the inner peripheral end is wider than the width of the short side of the cross section of the press 6, the press 6 can be inserted from the front inner circumferential direction. The tool 6 is guided to be inserted into the guide slant wall 55 and can be smoothly inserted, so that the mounting is easy even in the case of a large seat 2 or the like. And especially, since the concavo-convex part 61 of the pressing tool 6 and the concavo-convex part 58 of the concave part 51 mutually engage and bite into the sheet 2, the sheet 2 is held more firmly. Further, the presser 7 presses the presser 6 to hold the sheet 2 more firmly, prevent the presser 6 from reverse rotation, and reliably hold the sheet 2. Even when the sheet 2 is wound around the presser 6 not from the front side but from the rear side, the sheet 2 is held in the same manner. Therefore, even if there is an error in the construction procedure, the sheet 2 does not come off. In addition, since the hooking portion 41 of the holder 4 is substantially arc-shaped, the shaft portion 33 can be rotatably hooked on the hooked portion 31 of the tensioning tool 3. The holder 4 can be hooked from any angle while maintaining the posture of the tensioning tool 3 perpendicular to the direction, and even after the hooking, the direction of the sheet 2 is followed while maintaining the posture of the tensioning tool 3 Then, since the holder 4 freely rotates, smooth tensioning is possible, and also in this point, the construction is easy.

  The present invention is not limited to the above embodiments. For example, this sheet covering can be used as a partition, a tent, etc. besides a signboard. In addition, for the portion where the holding portion holds the sheet, finally, it is sufficient that the presser on which the sheet is wound be inserted into the recess, and as the construction procedure, the sheet is wound around the presser and then inserted into the recess. Alternatively, only the sheet may be inserted into the recess first, and then the presser may be inserted.

DESCRIPTION OF SYMBOLS 1 mounting material 2 sheet 3 tensioning tool 4 holding tool 5 receiving part 6 pressing tool 31 hooked part 32 biasing member 41 hooking part 42 holding part 51 recessed part 52 side contact wall 53 front contact wall 54 rear contact wall 55 Guided diagonal wall

Claims (1)

  A mounting member, a sheet, a tension member, and a holder are provided, the tension member being attached to the mounting member, the holder having a receiving portion and a pressing member, and the receiving portion being opened on the front side And a recess into which the presser can be inserted from the opening, the recess having a guiding slant wall, a side abutment wall, a front abutment wall and a rear abutment wall, and the guiding slant wall The front side, the rear side, and the side face of the sheet are wound in a state in which the sheet is wound, and the front side contact wall, the rear side contact wall, and the side contact face of the recess respectively. A seat tensioner characterized in that it is in contact with a contact wall, and a tensioner pulls a holder toward a mounting material.

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