JP2010138671A - Brace for temporary scaffold - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a brace for a temporary scaffold which can increase safety of a work site by more firmly connecting a support with the brace, facilitate the installation of the brace and the support, and improve the working efficiency at the site by making the structure of a connecting part relatively simple to suppress weight increase. <P>SOLUTION: The brace 10 for a temporary scaffold has diagonal members 11 diagonally arranged between scaffold supports and insertion members 20 connected to both ends of the diagonal member through pivot pins 14, and is formed by inserting a hook 21 of the insertion member into a receiving hole 31 of a diagonal member-receiving member 30 disposed on the scaffold support. An insertion member through-hole 24 is formed in the insertion member. Slide contact parts 15 to the scaffold support are installed at both ends of the diagonal member. The hook of the insertion member is inserted into the receiving hole of the diagonal member-receiving member. The diagonal member is inclined while approaching the scaffold support, and brought into contact with the scaffold support, and at the same time, a pawl 22 of the hook is brought into pressure contact with a pressure receiving part 32 of the receiving hole, thereby fixing the diagonal member to the scaffold support. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to bracing for temporary scaffolding.

  Generally, when a building is constructed, a temporary scaffold is installed on the outer periphery thereof. A plurality of struts are arranged at a predetermined interval, and a scaffolding plate is constructed between the struts to form a one-level scaffold. A plurality of levels of scaffolds are formed by sequentially adding support columns upward and erection of scaffolding plates in the same manner. In such a temporary scaffold, as a safety measure when the scaffold is added upward, a scaffolding material such as a skewed material, a horizontal material, or a vertical material is used as a handrail before the scaffolding plate is installed. Configured to be arranged.

  When placing a scaffold material in the temporary scaffold described above, a brace that uses a main body member as a fastening member or a brace handrail or the like is known in order to removably connect the scaffold material to a support of a support (for example, (See Patent Document 1). According to the brace structure disclosed in Patent Document 1, the body member 120 for locking the brace 110 to the holder 131 of the column P5 is provided at both ends of the brace. As shown in FIG. 14, the wedge member 125 is accommodated in the main body member 120. When fixing the column holder 131 and the bracelet main body member 120, the C-shaped main body member 120 is first combined with the holder 131. The wedge member 125 is lowered so as to penetrate both, and the main body member 120 is connected to the holder 131. In the figure, reference numeral 121 denotes an upper piece of the main body member, 122 denotes a lower piece, 126 denotes a wedge piece, and 127 denotes a guide piece.

  According to the bracing structure disclosed in Patent Document 1 or the like, a wedge member is inserted and fixed to the holder of the column. For this reason, it has been pointed out that the wedge member may be easily removed from the holder unintentionally. Therefore, there is a demand for a structure that can further strengthen the connection between the strut and the brace from the viewpoint of ensuring safety at the work site.

In addition, since the main body members provided at both ends of the brace accept the wedge member and receive a load such as the wedge member and the brace, the weight of the main body member increases to have sufficient strength. The increase in the weight of the members related to the bracing deteriorates the ease of handling at the site and affects the work efficiency.
JP 2006-70304 A

  The present invention has been made in view of the above-mentioned points, and further enhances the safety of the work site by further strengthening the connection between the strut and the brace, facilitates the attachment between the brace and the brace, and compares the connecting portions. It is intended to provide a brace for a temporary scaffolding that can suppress an increase in weight and increase work efficiency on site by adopting a simple structure.

  That is, the invention of claim 1 is an oblique member disposed inclining between scaffolding struts, and an insertion member rotatably connected to an upper end portion of the oblique member via a rotation pin. And a brace for temporary scaffolding formed by inserting a hook portion of the insertion member into a receiving hole portion of an oblique material receiving member disposed on the scaffolding strut, and A pin insertion member through-hole is formed, and an upper end portion of the skew material is provided with a slidable contact portion to the scaffold column, and the insertion member is inserted into a receiving hole portion of the skew material receiving member. The hook part is inserted, and the sliding member and the scaffolding column are brought into contact with each other by inclining the skew material while being close to the scaffolding column, and at the same time, the claw part of the hook part and the receiving hole part In connection with the bracing for temporary scaffold, wherein the skew member is fixed to the scaffold strut by pressing the pressure receiving portion. .

  The invention according to claim 2 relates to the brace for temporary scaffold according to claim 1, wherein the sliding contact portion is formed by a bent portion at an upper end portion of the skew material.

  According to a third aspect of the present invention, a horizontal handrail material is disposed on the skew material, and the horizontal handrail material has a through hole into which the rotating pin is inserted in the horizontal direction of the horizontal handrail material. The temporary scaffolding brace according to claim 1 or 2, wherein the brace is formed and connected to the skew member and the insertion member via the rotation pin so as to be rotatable.

  According to a fourth aspect of the present invention, in any one of the first to third aspects, the lower main body member rotatably connected to a lower end portion of the skew material via a rotation pin, and the lower A lower wedge member having a wedge portion that is disposed on the side main body member so as to be vertically movable and is inserted into a receiving hole portion of another skew material receiving member positioned diagonally below the skew material receiving member. A lower connecting structure is provided, and the lower main body member has a horizontal opening for receiving a receiving hole portion of the other skew material receiving member on the scaffolding column side, After the receiving hole portion of the other skew material receiving member is accommodated in the opening portion, the wedge portion of the lower wedge member is inserted into the receiving hole portion. Related to bracing for temporary scaffolding.

  According to a fifth aspect of the present invention, a long leg portion having an engaging protrusion at a lower portion is formed on the lower wedge member, and the lower body member is moved when the lower wedge member is moved upward. 5. The temporary scaffolding brace according to claim 4, wherein a retaining anchoring portion to which the engaging protrusion is engaged is provided.

  According to a sixth aspect of the present invention, the lower main body member is provided with a wedge member holding portion that holds the lower wedge member at a position where the wedge portion is not inserted into the receiving hole portion. Related to bracing for temporary scaffolding.

  According to the brace for temporary scaffolding according to the invention of claim 1, a skewed material disposed in an inclined manner between the scaffolding struts and a pivot pin connected to the upper end of the skewed material via a pivot pin A temporary scaffolding brace formed by inserting a hook portion of the insertion member into a receiving hole portion of a skewed material receiving member disposed on the scaffolding strut, An insertion member through-hole for the rotation pin is formed in the member, and a sliding contact portion to the scaffold column is provided at an upper end portion of the skew material, and in the receiving hole portion of the skew material receiving member The hook portion of the insertion member is inserted, and the sliding member and the scaffold strut are brought into contact with each other by inclining the skew material while being close to the scaffold strut, and at the same time, the claw portion of the hook portion In order to fix the skewed material to the scaffolding strut by pressing the pressure receiving portion of the receiving hole portion, To improve the safety of the work site, make it easier to attach the braces and the struts, and make the connection structure relatively simple, thereby suppressing the increase in weight and increasing the work efficiency of the work site. be able to

  According to the bracing for temporary scaffolding according to the invention of claim 2, in the invention of claim 1, since the sliding contact portion is formed by a bent portion of the upper end portion of the skew material, contact to the scaffolding column side The surface can be increased and the fixing stability between the skewed material and the scaffolding strut can be further improved.

  According to the brace for temporary scaffolding according to the invention of claim 3, in the invention of claim 1 or 2, a horizontal handrail material is disposed on the skew material, and the rotating pin is provided on the horizontal handrail material. Since the through-hole to be inserted is formed in the horizontal direction of the horizontal handrail material and is rotatably connected to the skew material and the insertion member via the rotation pin, An increase in the number of parts required for connection with the horizontal handrail can be suppressed. Further, since the skew feeding material and the horizontal handrail material are connected, there is no need for a separate operation for connecting both. Furthermore, misalignment when assembling the skew material to the scaffolding column is absorbed, and usability at the site is improved.

  According to the bracing for temporary scaffolding according to the invention of claim 4, in any one of claims 1 to 3, further, the lower part of the skew material is connected to the lower end portion of the skew material via a rotation pin so as to be rotatable. A side main body member, and a wedge portion that is disposed on the lower main body member so as to be vertically movable and is inserted into a receiving hole portion of another diagonal material receiving member positioned diagonally below the diagonal material receiving member. A lower connection structure comprising a lower wedge member is provided, and the lower main body member is a horizontal opening that accommodates a receiving hole portion of the other skew material receiving member on the scaffolding column side And the wedge portion of the lower wedge member is inserted into the receiving hole portion after the receiving hole portion of the other skew material receiving member is accommodated in the opening portion. Therefore, it is possible to improve the safety of the work site by strengthening the connection between the strut and the brace. Can. In addition, the bracing and the attachment with the support column are facilitated. In addition, the structure of the connecting portion can be made relatively simple.

  According to the brace for a temporary scaffold according to the invention of claim 5, in the invention of claim 4, a long leg portion having an engaging protrusion at a lower portion is formed on the lower wedge member, and the lower body member is Is provided with a retaining engagement portion for engaging the engagement protrusion when the lower wedge member is moved upward, so that the lower wedge member is detached from the lower body member and lost. Fear can be eliminated.

  According to the brace for a temporary scaffold according to the invention of claim 6, in the invention of claim 4 or 5, the lower wedge member is held on the lower body member at a position where the wedge part is not inserted into the receiving hole part. Since the wedge member holding portion is provided, when the lower connecting structure is to be connected to the lower skewed material receiving member, the wedge portion of the lower wedge member does not go down to the opening. This does not interfere with the reception of the connecting portion of the skew material receiving member. Therefore, the connection between the lower connection structure and the skew material receiving member can be smoothly performed.

The present invention will be described in detail with reference to the accompanying drawings.
1 is a front view of a brace for a temporary scaffold according to an embodiment of the present invention, FIG. 2 is an overall front view of an insertion member, FIG. 3 is a partial perspective view of a skew material, and FIG. 4 is an end of a horizontal handrail material. FIG. 5 is a perspective view of the main part showing the connection state of the bracing member for temporary scaffolding, FIG. 6 is a schematic sectional view before connection of the bracing member for temporary scaffolding, and FIG. FIG. 8 is a schematic cross-sectional view after connection using the insertion member of the scaffolding brace, FIG. 8 is a schematic cross-sectional view after connection using the insertion member of another example, and FIG. 9 is a connection of the lower linkage structure of the temporary scaffolding brace. FIG. 10 is a schematic cross-sectional view before connection of the lower linkage structure for the temporary scaffolding, FIG. 11 is a schematic cross-sectional view after connection of the lower linkage structure for the temporary scaffold, FIG. 12 is a schematic diagram showing the positional relationship of the lower wedge members in the lower connection structure, and FIG. 13 is a connection diagram using another example of the lower connection structure. It is a schematic cross-sectional view after.

  A temporary scaffolding brace 10 shown in the front view of FIG. 1 of the embodiment includes a first scaffolding brace 10a and a second scaffolding brace 10b that are symmetrical. Since they are symmetrical to each other, the bracing for temporary scaffolding according to the present invention will be described based on the bracing for first scaffolding 10a. In each figure, the same code | symbol shall show a common member.

  That is, as defined in the invention of claim 1, the first scaffolding brace 10a includes a skewed material 11 inclined between the scaffolding columns P1 and P2, and both ends of the skewed material 11 The insertion member 20 is rotatably connected to each of the upper end portion 12 and the lower end portion 13, which are portions, via a rotation pin 14. A plurality of skew material receiving members 30 are connected to the scaffold columns P1 and P2 by welding or the like, and each skew material receiving member 30 is provided with a connecting portion 35, and a receiving hole portion 31 is formed in the connecting portion 35. . The insertion member 20 is provided with a hook portion 21, and the hook portion 21 is inserted into the receiving hole portion 31 of the skew material receiving member 30. As a result, the oblique members 11 are connected to the scaffolding columns P1 and P2, and the temporary scaffold braces 10 (the first scaffold braces 10a and the second scaffold braces 10b) are configured.

  In the drawing, an example in which a flange-like flange member is used as the skew material receiving member will be described. Reference numeral 50 denotes a lower connecting structure, and 60 denotes a lower wedge member, which will be described in FIG. Of the skew member receiving member 30, reference numeral 30p is located on the upper side of the scaffolding pillars P1 and P2, and is used for connection with the insertion member 20 of the first scaffolding brace 10a or the second scaffolding brace 10b, and 30q is a scaffolding. It is located on the lower side of the pillars P1 and P2, and is used for connection with the connection structure 50 of the first scaffolding brace 10a or the second scaffolding brace 10b.

  As can be understood from the front view of the insertion member 20 in FIG. 2, the insertion member 20 has a substantially J-shape when viewed from the front, and includes a main body portion 26 and an oblique member that is a flange member extending from the main body portion. Hook part 21 for preventing the claw part 22 coming into contact with the receiving hole part 31 of the receiving member 30 (30p) and the retaining hole part 31 formed at the tip of the claw part and the receiving hole part 31 of the oblique member receiving member 30 (30p). Is provided. An insertion member through hole 24 into which the rotation pin 14 is inserted is formed in the main body portion 26.

  The perspective view of FIG. 3 shows the upper end portion 12 of the skew member 11. As can be seen from FIG. 1 and FIG. 1, the upper end portion 12 of the oblique member 11 is provided with a sliding contact portion 15 for coming into contact with the scaffolding column. In particular, as shown in FIG. 3A and defined in the invention of claim 2, the sliding contact portion 15 is formed in a bent portion 15 s of the upper end portion 12 of the skew member 11. By using the sliding contact portion 15 as shown in the figure, the contact surface to the scaffolding column side is increased, so that the stability of fixing the skew material and the scaffolding column can be further improved. In addition, as shown in FIG. 3 (b), a skewed material 11k in which a bent portion is omitted and a sliding contact portion 15k is formed can be used. An end insertion hole 16 is formed through the upper end 12 shown in the figure, and the rotation pin 14 is inserted. The skewed material 11 (11k) may be a metal pipe as well as a rod-shaped metal as illustrated. The rotation pin 14 is made of a known member such as a bolt or rivet.

  FIG. 4 shows a front view of the horizontal handrail material. As can be understood from FIG. 1, a horizontal handrail material 40 is arranged on the skew material 11. By providing the horizontal handrail material, the safety in the left-right direction between the scaffolding columns can be enhanced. The skew material and the horizontal handrail material can be connected using an appropriate fitting such as a clamp (not shown). However, the number of parts required for the connection between the skew material and the horizontal handrail material may increase, and other work may be required for the connection.

  Accordingly, as defined in the third aspect of the present invention, the horizontal handrail member 40 is formed with a through long hole 44 through which the rotation pin 14 is inserted. The through-hole 44 is formed in a shape in which the rotation pin 14 can move in the horizontal direction of the horizontal handrail material, that is, in the length direction, and is provided at one end 42 of the horizontal handrail material. As shown in FIG. 1 and FIGS. 5 to 7 described later, the horizontal handrail member 40 is connected to the skew member 11 and the insertion member 20 via the rotation pin 14. Accordingly, the horizontal handrail member 40, the skew member 11 and the insertion member 20 can be rotated around the rotation pin 14 as an axis.

  By using the horizontal handrail material having the structure disclosed in FIG. 4, an increase in the number of parts required for connecting the skew material and the horizontal handrail material can be suppressed. Since the skew material and the horizontal handrail material are connected from the beginning, there is no need for a separate operation for connecting both. Furthermore, misalignment when assembling the skew material to the scaffolding column is absorbed, and usability at the site is improved.

  FIG. 5 is a schematic perspective view of the scaffold strut with a skew material attached thereto. In the positional relationship of the embodiment shown in the figure, the skew member 11, the insertion member 20, and the horizontal handrail material 40 are arranged in this order from the front side to the back side of the page and are connected by a single rotation pin 14. . The rotating pin 14 of the embodiment is fixed by a nut 19. In addition, the order of connection of a skew feeding material, an insertion member, and a horizontal handrail material is not restricted to the case of illustration. Moreover, installation of a horizontal handrail is also appropriate.

  The attachment of the scaffolding strut and the skew material will be described with reference to the perspective view of FIG. 5 and the front views of FIGS. 6 and 7 particularly show the vicinity of the upper end portion 12 of the skew member 11 in the first scaffolding brace 10a. First, as shown in FIGS. 5 and 6, when attaching the skewed material 11 to the scaffolding column P1, first, a receiving hole provided in the connecting portion 35 of the skewed material receiving member 30 (30p) of the flange member. The hook portion 21 of the insertion member 20 is inserted into the portion 31. At this time, the oblique member 11 remains inclined at an angle θ with respect to the horizontal plane.

  The insertion member 20 and the skew feeding member 11 are integrated by a rotation pin 14 so as to be rotatable, and the rotation pin 14 is inserted into the insertion member through hole 24 having a long hole shape of the insertion member 20. Yes. For this reason, the skew member 11 and the insertion member 20 are rotatable and can also be moved in the left and right directions. Therefore, the positioning when the hook portion 21 of the insertion member 20 is to be inserted into the receiving hole portion 31 of the skewed material receiving member 30 (30p) is facilitated. As already disclosed in FIG. 4, since the through-hole 44 is provided in the one side end portion 42 of the horizontal handrail member 40, when attaching the skew material to the scaffolding column, the horizontal direction of the horizontal handrail material itself It is also easy to move the position.

  Subsequently, as understood from FIG. 7 together with FIG. 5, after the hook portion 21 of the insertion member 20 is inserted into the receiving hole portion 31 of the skew member receiving member 30 (30 p), the skew member 11 is inserted. Is tilted while approaching the scaffolding column P1 (see arrow D1). Due to the leaning of the skewed material at this time, the skewed material 11 is inclined at an angle φ with respect to the horizontal plane (angle φ <angle θ). Therefore, the slidable contact portion 15 at the upper end portion 12 of the skewed material 11 is brought into contact with the scaffold column P1.

  Next, since the rotation pin 14 also moves in conjunction with the inclination of the skew member 11, the insertion member 20 is dragged by the rotation pin 14 inserted into the insertion member through hole 24 and the position changes. To do. As shown in a comparison between FIG. 6 and FIG. 7, the insertion member 20 moves in the right direction on the page, that is, in the direction away from the scaffolding pillar P1. As a result, since the hook portion 21 of the insertion member 20 moves in the same manner, the claw portion 22 formed on the side surface portion of the hook portion 21 of the insertion member 20 has the skew member receiving member 30 (30p) of the flange member. The pressure receiving portion 32 in the receiving hole portion 31 is in pressure contact.

  Therefore, when the skewed material 11 is fixed to the scaffolding column P1, the frictional force in the sliding contact portion 15 of the skewed material 11 and the receiving hole portion 31 of the skewed material receiving member 30 (30p) and the hook portion of the insertion member 20 are provided. The pressing force between 21 acts simultaneously. The anchoring strut and the skew material are firmly fixed by both actions. As in the embodiment, since the hook portion of the insertion member is inserted into the receiving hole portion in the connecting portion of the skew material receiving member (flange member), the hook portion of the insertion member is arranged in the circumferential direction of the scaffolding column (see FIG. 5) (see arrow D in FIG. 5). As a result, it is possible to avoid the shift of the inclined position of the skew material with respect to the scaffold column.

  FIG. 8 shows a state in which the brace for temporary scaffolding of the present invention is connected to the scaffolding column P3 provided with the box-shaped holder 30a as the skew material receiving member. In the skewed material receiving member holder 30a, reference numeral 31a is a receiving hole portion, 32a is a pressure receiving portion, and 35a is a connecting portion. The claw portion 22a formed on the side surface portion of the hook portion 21a of the insertion member 20A in accordance with the shape of the holder 30a is also formed long vertically. In the example of FIG. 8 as well, the manner and function of attaching the scaffolding strut and the skew material are the same as those disclosed in FIGS. 6 and 7, and the frictional force at the sliding contact portion 15 of the skew material 11 and the skew. This is because the pressing force between the receiving hole portion 31a of the material receiving member 30a and the hook portion 21a (claw portion 22a) of the insertion member 20A is acting simultaneously.

  As can be understood from the perspective view of FIG. 9 and the schematic views of FIGS. 10 and 11 in addition to the front view of FIG. 1, the brace for temporary scaffolding 10 is further provided with a lower connection structure 50. The brace 10a for the first scaffold is connected and fixed by the skewed material receiving member 30p of the scaffolding column P1 and the insertion member 20, and is connected and fixed by the skewed material receiving member 30q of the scaffolding column P2 and the lower connecting structure 50. Is done. The same applies to the brace for the second scaffold 10b. From here, it demonstrates based on the bracing 10a for 1st scaffolds.

  As shown in the figure, the lower connecting structure 50 is provided with a lower main body member 51 and a lower wedge member 60. The lower main body member 51 is rotatably connected to the lower end portion 13 of the skew member 11 via the rotation pin 14. The lower wedge member 60 is arranged on the lower main body member 51 so as to be movable up and down, and is diagonally below the skew material receiving member 30 (30p) connected and fixed by the insertion member 20 (arrangement of the skew material 11). A wedge portion 61 that is inserted into the receiving hole portion 31 formed in the connecting portion 35 of the other skewed material receiving member 30 (30q). 9 and subsequent figures, reference numeral 54 is a wedge member holding portion, 55 is a retaining engagement portion, 62 is a long leg portion, 63 is a wedge beam portion connecting the wedge portion and the long leg portion, and 65 is an engagement protrusion. Part.

  The lower main body member 51 accommodates the lower wedge member 60 by two plate-like members, a first plate-like member 53 and a second plate-like member 54, and the two plate-like members 53, 54 are connected by a holding portion 52. ing. The lower body member 51 is formed with a horizontal opening 59 for receiving the receiving hole 31 of the other skew material receiving member 30 (30q) on the side of the illustrated scaffolding column P2. After the receiving hole 31 of another skew material receiving member 30 (30q) is accommodated in the opening 59, the wedge 61 of the lower wedge member 60 is inserted into the receiving hole 31. is there.

  10 and 11 together with FIG. 9, there are an upper plate portion 57 positioned above the opening 59 of the lower body member 51 and a lower plate portion 58 positioned below the opening 59 of the lower body member 51. Since it is formed, the lower main body member 51 has a U-shape when viewed from the front. Therefore, when the lower connecting structure 50 is to be connected to the lower skew material receiving member 30 (particularly 30q), the lower main body member 51 is moved from the horizontal direction side of the skew material receiving member 30 (30q). The opening 59 can be brought close to the skew material receiving member. For this reason, alignment and connection of the skewed material receiving member and the lower main body member are facilitated.

  10 and 11 both show a state in which the lower skew material receiving member 30 (30q) is received in the opening 59 of the lower main body member 51 of the lower connection structure 50. FIG. In FIG. 10, the lower wedge member 60 is lifted so that the wedge portion 61 is positioned immediately above the receiving hole portion 31 in the connecting portion 35 of the skewed material receiving member 30 (30q). As can be understood from FIG. 11, the lower wedge member 60 is lowered and the wedge portion 61 is inserted into the receiving hole portion 31. The pressure receiving portion 32 of the receiving hole portion 31 is pressed by the wedge portion 61. The wedge part 61 is clamped and fixed between the pressure receiving part 32 and the holding part 52. And the lower side connection structure 50 is connected with the lower skew material receiving member 30 (30q). In the figure, the wedge beam portion 63 is located on the connecting portion 35, and the convex portion 66 of the wedge beam portion is in contact with the holding portion 52, so that the wedge portion 61 extends from the receiving hole portion 31. It will not fall out. As can be understood from the embodiment, the connection between the strut and the brace can be strengthened to increase the safety of the work site, and the bracing and the attachment to the strut are easy. Moreover, the structure of the connecting portion is relatively simple.

  The movable position of the lower wedge member 60 in the lower connection structure 50 will be described with reference to FIG. As understood from FIG. 12A and as defined in the invention of claim 5, the lower wedge member 60 is provided with a long leg portion 62, and an engaging protrusion 65 is provided below the long leg portion 62. It is done. Further, a retaining engagement portion 55 is formed in the lower portion of the lower main body member 51 by notching. As shown in the figure, when the lower wedge member 60 is moved upward from the lower body member 51, the engaging protrusion 65 of the same long leg portion 62 is engaged with and engaged with the retaining engagement portion 55. With such engagement, it is possible to eliminate the possibility that the lower wedge member is detached from the lower body member and lost.

  FIG. 12B shows the inside of the lower main body member 51 when the lower connecting structure 50 is to be connected to the lower skew material receiving member 30 (30q). As defined in the invention of claim 6, the lower main body member 51 has a wedge portion 61 of the lower wedge member 60 on the receiving hole portion 31 (FIG. 10, FIG. 10) of the lower skew material receiving member 30 (30 q). 11) is provided with a wedge member holding portion 54 for holding the lower wedge member 60 at a position where it is not inserted. When the lower connecting structure 50 is connected to the lower skew member receiving member 30 (30q), the installation position of the wedge member holding portion 54 is such that the lower wedge member 60 is inserted into the opening 59 of the lower main body member 51. This is a position where the tip 61e of the wedge part 61 is not exposed. Therefore, the lower wedge member 60 is provided with a wedge engaging portion 67 that engages with the wedge member holding portion 54. For this reason, when the lower connecting structure is to be connected to the lower skew material receiving member, the wedge portion of the lower wedge member does not go down to the opening. The insertion of the connecting portion into the opening is smooth without interfering with the insertion of the connecting portion.

  FIG. 13 shows a state in which the lower connection structure 50B provided for the brace for temporary scaffolding of the present invention is connected to the scaffolding column P4 provided with the box-shaped holder 30a as the skew material receiving member. The opening 59b of the lower main body member 51B is also formed large in the vertical direction in accordance with the vertical length of the box-shaped holder 30a. The lower wedge member 60B includes a long leg portion 62b that is elongated in accordance with the opening portion 59b of the lower main body member 51B together with the wedge portion 61b. Reference numeral 57b denotes an upper plate portion of the lower main body member 51B, and 58b denotes a lower plate portion of the lower main body member 51B. Also in the illustrated example, the connection mode between the holder 30a and the lower connection structure 50B performed via the lower wedge member 60B is the same as in the case of FIG. The lower wedge member 60B is lowered and the wedge portion 61b is inserted into the receiving hole portion 31a, and the pressure receiving portion 32a of the receiving hole portion 31a is pressed by the wedge portion 61b. As a result, the lower connection structure 50B is connected to the lower skew material receiving member 30 (30q).

It is a front view of the bracing for temporary scaffolding which concerns on one Example of this invention. It is a whole front view of an insertion member. It is a fragmentary perspective view of skew material. It is an enlarged view near the edge part of a horizontal handrail material. It is a principal part perspective view showing the connection state of the bracing for temporary scaffolding. It is a front view before the connection of the brace for temporary scaffolding. It is a front view after the connection of the braces for temporary scaffolding. It is a schematic sectional drawing after the connection using the insertion member of another example. It is a principal part perspective view showing the connection state of the lower side connection structure of bracing for temporary scaffolding. It is a schematic sectional drawing before the connection of the lower connection structure of a brace for temporary scaffolding. It is a schematic sectional drawing after the connection of the lower connection structure of bracing for temporary scaffolding. It is the schematic which shows the positional relationship of the lower wedge member in a lower side connection structure. It is a schematic sectional drawing after the connection using the lower side connection structure of another example. It is a front view of the fixing structure in the conventional bracing for temporary scaffolding.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Bracing for temporary scaffolding 10a Bracing for 1st scaffolding 10b Bracing for 2nd scaffolding 11 Skew material 12 Upper end part 13 Lower end part 14 Rotating pin 20 Inserting member 21 Hook part 22 Claw part 24 Inserting member through-hole 30 Skewing Material receiving member 30p Upper skew material receiving member 30q Lower skew material receiving member 31 Receiving hole portion 32 Pressure receiving portion 35 Connecting portion 40 Horizontal handrail material 44 Handrail through hole 50 Lower connecting structure 51 Lower body Member 54 Wedge member holding portion 55 Retaining prevention attaching portion 59 Opening portion 60 Lower wedge member 61 Wedge portion 62 Long leg portion 65 Engaging protrusion P1, P2 Scaffolding column

Claims (6)

An oblique member disposed between the scaffolding struts, and an insertion member rotatably connected to an upper end portion of the skewing member via a pivot pin. A brace for temporary scaffolding formed by inserting the hook portion of the insertion member into the receiving hole portion of the skewed material receiving member arranged,
An insertion member through hole of the rotation pin is formed in the insertion member, and an upper end portion of the skew material is provided with a sliding contact portion to the scaffold column,
The hook portion of the insertion member is inserted into the receiving hole portion of the skew material receiving member, and the sliding contact portion and the scaffold column are brought into contact with each other by inclining the skew material while approaching the scaffold column. The bracing for temporary scaffolding, wherein the hooking claw part and the pressure receiving part of the receiving hole part are brought into pressure contact with each other to fix the skewed material to the scaffolding column.   The brace for temporary scaffolding according to claim 1, wherein the sliding contact portion is formed by a bent portion of an upper end portion of the skew material.   A horizontal handrail material is disposed on the skew material, and a through hole is formed in the horizontal handrail material in the horizontal direction of the horizontal handrail material, and the rotation pin is inserted into the horizontal handrail material. The brace for temporary scaffolding according to claim 1 or 2, wherein the brace is pivotally connected to the skew member and the insertion member via a hook. 4. The lower body member connected to the lower end portion of the skew material via a rotation pin, and the upper body member can be moved up and down in any one of claims 1 to 3. A lower connecting structure comprising a lower wedge member having a wedge portion that is inserted into a receiving hole portion of another skewed material receiving member located on the diagonally lower side of the skewed material receiving member. And
The lower body member has a horizontal opening for receiving a receiving hole portion of the other skew material receiving member on the side of the scaffolding column, and the other skew material receiving member in the opening. A brace for a temporary scaffold, wherein the wedge portion of the lower wedge member is inserted into the receiving hole portion after the receiving hole portion is received.   The lower wedge member is formed with a long leg portion having an engaging protrusion at a lower portion, and the engaging protrusion is engaged with the lower body member when the lower wedge member is moved upward. The brace for temporary scaffolding according to claim 4, wherein a retaining engagement portion is provided.   The brace for temporary scaffolding according to claim 4 or 5, wherein the lower main body member is provided with a wedge member holding portion for holding the lower wedge member at a position where the wedge portion is not inserted into the receiving hole portion.

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