JP2012087595A - Brace for temporary scaffold - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a brace for a temporary scaffold, which has a configuration enabling a wedge receiver of a scaffold support on the side of a diagonal member or horizontal member to be selected, and which enhances the degree of selecting freedom of the wedge receiver of the scaffold support.SOLUTION: An upper side connection part 20 has a hook arm member 40, an advancing and retreating end 30, an upper wedge member 50, a first pin member 21, and a second pin member 22. The advancing and retreating end 30 is mounted such that the upper wedge member 50 can advance and retreat between a first position and a second position with regard to a horizontal member 12 by having the first and second pin members 21, 22 move in slot parts 31, 32, respectively. The hook arm member 40 is configured such that a hook part 41 is engaged with the second pin member 22 by having the hook arm member 40 turn around the first pin member 21 as a turning shaft and a diagonal member 11 is thus fixed to the upper side connection part 20. A lower side connection part 60 is provided with a lower side fixed part 70, which fixes the diagonal member 11 at the first position or the second position in response to advancing and retreating movement of the upper wedge member 50 between the first position and the second position, and a lower side wedge member 90 which is engaged with a lower side wedge receiver 3.

Description

  The present invention relates to bracing for temporary scaffolds.

  Temporary scaffolding will be installed on the outer periphery of the building during construction work. In this case, first, a plurality of support columns are arranged at predetermined intervals. A scaffolding plate is installed between the columns to form a one-level scaffold. And the support | pillar is sequentially added upwards, and a scaffold board is constructed similarly, and the scaffold of several levels is formed. In the construction work of such a temporary scaffold, as a safety measure for the work of adding the scaffold upward, the scaffolding material such as diagonal, horizontal, or vertical is used as a handrail before the scaffold plate is constructed. Arranged.

  When the scaffolding is arranged, the brace for temporary scaffolding is detachably attached to the wedge support (holder) of the scaffolding column. In the case of a general scaffolding column, as shown in FIG. 14, it is arranged at four locations 90 ° around the column (see, for example, the drawing of Patent Document 1). Specifically, the upper wedge receiver 2 is composed of 2a, 2b, 2c, 2d, and the lower wedge receiver 3 is composed of 3a, 3b, 3c, 3d. The upper and lower wedge receivers have the same shape. When diagonal members, horizontal members, etc. are attached to the wedge receivers disclosed in FIG. 14, the diagonal members, horizontal members, etc. are attached to the opposite wedge receivers (for example, between 2a and 2c) between the two scaffold columns. (See Patent Document 1). Alternatively, the diagonal member, the horizontal member, and the like are engaged between the wedge receivers on the left and right of the wedge receivers at the opposite positions (for example, between 3b and 3b) (see, for example, Patent Documents 2, 3, 4, etc.).

  In diagonal members, horizontal members, etc. installed between the scaffolding struts, improvements have been made for securing the scaffold strut wedges firmly and easily (see Patent Documents 2, 3, 4 etc.). ). However, in reality, the correspondence between the diagonal members, the horizontal members, and the like and the wedge receivers that accept them are fixed. For this reason, there is a demand to flexibly select a wedge receiver used for anchoring diagonal materials, horizontal materials, etc. in consideration of the structure of the building where the temporary scaffolding is constructed, workability at the site, and the like. Moreover, since materials such as diagonal materials and horizontal materials are procured according to the position of the wedge receiver to be used at present, it is complicated.

  Therefore, it is possible to select the mounting position of the wedge support of the scaffolding strut on the side of the diagonal material or horizontal material provided for the temporary scaffolding for the temporary scaffolding, and the configuration of the bracing that can flexibly respond to the structure of the building and field work is desired. It came to.

JP 2008-261150 A JP 2008-63903 A JP 2008-75305 A JP 2008-214994 A

  The present invention has been made in view of the above points, and has a configuration that enables selection of a wedge support for a scaffolding strut on the side of a diagonal member or a horizontal member. It is intended to provide a brace for temporary scaffolding that can flexibly cope with the structure of the object and the work on site.

  Specifically, the invention of claim 1 is provided with two diagonal members disposed in an X shape between the scaffolding struts, a horizontal member laid between the scaffolding struts, and both ends of the horizontal member. And an upper connecting portion pivotally attached to the diagonal member and removably engaged with an upper wedge receiver provided on the scaffold column, and provided at each lower end portion of the diagonal member and provided on the scaffold column. In the brace for temporary scaffolding comprising a lower connecting portion removably engaged with the lower wedge receiver, the upper connecting portion includes a brace member pivotally attached to the upper end portion of the diagonal member An advancing / retreating end portion for supporting an end portion of the horizontal member, an upper wedge leg portion engaged with the upper wedge receiver, and an upper wedge body portion orthogonal to the upper wedge leg portion and extending to the opposite side of the scaffolding column. An upper wedge member; A first pin member that passes through and supports the end portion and the upper wedge member; and a second pin member that passes through the advance / retreat end portion and the upper wedge member; A horizontal hole formed in a horizontal direction through which the first pin member and the second pin member penetrate, and the horizontal member is moved to the horizontal member by moving the first pin member and the second pin member. The upper wedge member is attached to the first position and the second position so as to be able to move forward and backward. The arm member includes a flange portion, and the arm member rotates around the first pin member as a rotation axis. By moving, the hook part engages with the second pin member, and the diagonal member is fixed to the upper connecting part via the hook arm member, and the lower connecting part includes the upper wedge member Corresponding to the first and second movements of the first and second positions, Position or which has a lower fixing unit for fixing at any position of the second position, according to the temporary scaffolding struts, characterized in that it comprises a lower wedge member engaged with receiving the lower wedge.

  The invention according to claim 2 relates to the bracing for temporary scaffold according to claim 1, wherein the advancing / retreating end portion supports the horizontal member via a bracket portion.

  The invention according to claim 3 relates to the brace for temporary scaffolding according to claim 2, wherein the horizontal member has a backing plate portion for the scaffolding strut at the tip portion of the horizontal member.

  According to a fourth aspect of the present invention, the advance / retreat end portion includes a wedge member upper holding portion and a wedge member lower holding portion that sandwich the upper wedge main body portion from above and below. Related to bracing for scaffolding.

  The invention according to claim 5 relates to the brace for temporary scaffold according to any one of claims 1 to 4, wherein an opening of the heel portion of the heel arm member is formed to open upward.

  According to a sixth aspect of the invention, the lower fixing portion is provided at a fixing rod member, a fixing hole provided in the lower connecting portion through which the fixing rod member is inserted, and a lower end portion of the diagonal member. It concerns on the bracing for temporary scaffolds of any one of Claim 1 thru | or 5 which has a diagonal hole part.

  According to a seventh aspect of the present invention, the diagonal material hole portion includes a first diagonal material hole portion and a second diagonal material hole portion having a diameter larger than that of the first diagonal material hole portion, and the diagonal material is formed at the lower connecting portion. The first fixing hole and the second diameter larger than the first fixing hole as the fixing hole at the position corresponding to the first diagonal hole and the second diagonal hole in the first position. As the fixing hole at the position corresponding to the first diagonal material hole and the second diagonal material hole when the diagonal material is in the second position in the lower connecting portion. The brace for temporary scaffolding according to claim 6, comprising a third fixing hole and a fourth fixing hole having a diameter larger than that of the third fixing hole.

  The invention according to claim 8 is characterized in that the fixing rod member includes a first fixing rod member used for fixing the first diagonal member hole and the first fixing hole or the third fixing hole, and a second diagonal member hole. The bracing for temporary scaffolding according to claim 7, comprising a second fixing rod member used for fixing to the second fixing hole or the fourth fixing hole.

  According to a ninth aspect of the present invention, a support pin portion is provided at a lower fixed portion of the lower connecting portion, and the support pin portion is attached to a lower end portion of the diagonal member so that the diagonal member is attached to the first diagonal member. A first engaging portion that is fixed at a position; a second engaging portion that is engaged with the support pin portion to fix the diagonal member at the second position; and the support pin portion is slidable. The temporary scaffolding bracing according to any one of claims 1 to 5, wherein a lower groove portion connecting the first engaging portion and the second engaging portion is formed.

  According to the bracing for temporary scaffolding according to the invention of claim 1, two diagonal members disposed in an X shape between the scaffolding struts, a horizontal member laid between the scaffolding struts, and the horizontal member And an upper connection portion that is pivotally attached to the diagonal member and is removably engaged with an upper wedge receiver provided on the scaffold column, and is provided at each lower end portion of the diagonal member. In the brace for temporary scaffolding comprising a lower connecting portion removably engaged with a lower wedge receiver provided on the scaffolding column, the upper connecting portion is pivotally attached to an upper end portion of the diagonal member. An arm member, an advancing / retracting end portion for supporting an end portion of the horizontal member, an upper wedge leg portion engaged with the upper wedge receiver, and an upper side orthogonal to the upper wedge leg portion and extending to the opposite side of the scaffolding column. Upper wedge member with wedge body and front A first pin member that penetrates and supports the arm member, the advance / retreat end portion, and the upper wedge member, and a second pin member that penetrates the advance / retreat end portion and the upper wedge member, The advancing / retreating end portion includes a slot portion formed in a horizontal direction through which the first pin member and the second pin member pass, and the first pin member and the second pin member move in the slot portion. Accordingly, the upper wedge member is attached to the horizontal member so as to be movable back and forth between the first position and the second position, the arm member includes a collar portion, and the arm member is the first pin member. And the lower connecting portion is configured such that the slant member is fixed to the upper connecting portion via the hook arm member by rotating the hook portion as a rotating shaft. For the forward and backward movements of the first and second positions of the upper wedge member. And having a lower fixing member for fixing the diagonal member at either the first position or the second position and a lower wedge member engaged with the lower wedge receiver. It has a configuration that enables the selection of the wedge support for the scaffolding pillar on the material side, increases the degree of freedom of selection of the wedge support for the scaffolding pillar, and can flexibly cope with the structure of the building and the field work. Further, since the bracing for temporary scaffolding itself can correspond to the position of the wedge support of the scaffold column, it is possible to suppress the amount of material without preparing the material according to the position of the wedge support of each scaffold column.

  According to the bracing for temporary scaffolding according to the invention of claim 2, in claim 1, since the advancing / retreating end part supports the horizontal member via the bracket part, the horizontal member is installed at a position higher than the advancing / retreating end part. Can do.

  According to the brace for temporary scaffolding according to the invention of claim 3, in claim 2, since the scaffolding plate portion for the scaffold strut is provided at the tip of the horizontal member, the scaffold strut is inside when the brace for temporary scaffold is installed. Inclination to the (horizontal material side) can be suppressed.

  According to the bracing for temporary scaffolding according to the invention of claim 4, in claim 1 to 3, the advance / retreat end portion includes a wedge member upper holding portion and a wedge member lower holding portion for holding the upper wedge main body portion from above and below. Therefore, the upper wedge member is restricted to move only in the horizontal direction. For this reason, the holding | maintenance performance of an upper wedge member becomes good, the movement of the 1st position and 2nd position of an upper wedge member becomes smooth, and the convenience of handling the brace for temporary scaffolding increases.

  According to the brace for temporary scaffolding according to the invention of claim 5, in claim 1 to 4, since the opening portion of the heel portion of the heel arm member is opened upward, the heel arm member is The pin member can be effectively engaged.

  According to the brace for a temporary scaffold according to the invention of claim 6, in claim 1 to 5, the lower fixing portion is a fixing rod member and a fixing provided in the lower connecting portion through which the fixing rod member is inserted. Since the hole portion and the diagonal hole portion provided at the lower end portion of the diagonal member are provided, it is possible to easily cope with the positional deviation generated in the diagonal member with a relatively simple structure.

  According to the bracing for temporary scaffolding according to the invention of claim 7, in claim 6, the oblique material hole is formed from a first oblique material hole and a second oblique material hole having a larger diameter than the first oblique material hole. And the first fixing hole as the fixing hole at the position corresponding to the first diagonal hole and the second diagonal hole when the diagonal is in the first position in the lower connecting portion. The first diagonal hole and the second diagonal in the case where the second fixed hole having a diameter larger than that of the first fixed hole is provided and the diagonal is in the second position in the lower connecting portion. Since the third fixing hole portion and the fourth fixing hole portion having a diameter larger than the third fixing hole portion are provided as the fixing hole portion at a position corresponding to the hole portion, the diagonal member is prevented from being fixed at an incorrect position. can do.

  According to the brace for temporary scaffolding according to the invention of claim 8, in claim 7, the fixing rod member is a first used for fixing the first diagonal hole part and the first fixing hole part or the third fixing hole part. Since it consists of a fixed rod member and a second fixed rod member used for fixing the second diagonal hole and the second fixed hole or the fourth fixed hole, it is safe and reliable by preventing the fixation of the fixed rod member Can be fixed to.

  According to the brace for temporary scaffolding according to the invention of claim 9, in claim 1 to 5, a support pin portion is provided in a lower fixing portion of the lower connection portion, and the support member is provided at a lower end portion of the diagonal member. A first engaging portion that fixes the diagonal member at the first position by engaging a pin portion, and a second engaging portion that fixes the diagonal member at the second position by engaging the support pin portion. And a lower groove portion connecting the first engagement portion and the second engagement portion so that the support pin portion is slidable. It is possible to easily cope with the positional deviation that occurs.

It is a front view of the bracing for temporary scaffolding which concerns on one Example of this invention. It is a principal top view near an upper side connection part. It is a principal part disassembled perspective view of an upper side connection part. It is a principal part longitudinal cross-sectional view of an upper side connection part. It is a schematic top view showing the positional relationship between a horizontal member and a scaffolding column. It is a front view of the upper side connection part which shows the 1st position of an upper wedge member. It is a front view of the upper side connection part which shows the 2nd position of an upper wedge member. It is a front view of the lower side connection part which shows the 1st position of a diagonal. FIG. 9 is a main top view in the vicinity of the lower connection part of FIG. 8. It is a front view of the lower side connection part which shows the 2nd position of a diagonal. FIG. 11 is a main top view in the vicinity of the lower connection part of FIG. 10. It is a front view of the lower side connection part which concerns on the other Example which shows the 1st position of a diagonal. It is a front view of the lower side connection part which concerns on the other Example which shows the 2nd position of a diagonal. It is a perspective view of a scaffolding column.

  A brace for temporary scaffolding 10 according to one embodiment of the present invention shown in FIGS. 1 to 4 includes two diagonal members 11, 11, a horizontal member 12, an upper connecting portion 20, and a lower connecting portion 60. Prepare. In the embodiment, the arrangement and structure of the upper wedge receiver 2 (2a, 2b, 2c, 2d) and the lower wedge receiver 3 (3a, 3b, 3c, 3d) of the scaffold column 1 are shown in FIG. 14 disclosed in the background art. This is the same as the structure of the wedge receiver in the scaffolding strut 1. The upper wedge receiver 2 and the lower wedge receiver 3 have the same shape. In this specification, for convenience of explanation, the wedge receivers 2 and 3 of the scaffold column 1 are distinguished from each other in the upper and lower sides.

  The two diagonal members 11 and 11 are arranged in an X shape so as to intersect between the scaffolding columns 1 and 1.

  The horizontal member 12 is constructed between the scaffolding columns 1 and 1, and is formed in a pipe shape.

  The upper connecting portion 20 is provided at both ends of the horizontal member 12 and is pivotally attached to the diagonal members 11, 11, with respect to the upper wedge receiver 2 (2 a, 2 b, 2 c, 2 d) provided on the scaffolding column 1, 1. As shown in FIGS. 2 to 4, it is detachably engaged, and has an advancing / retreating end portion 30, an arm member 40, and an upper wedge member 50. In the upper connecting portion 20, the arm member 40, the advancing / retreating end portion 30, and the upper wedge member 50 are slidably overlapped and arranged in this order. 2 to 4, reference numeral 21 denotes a first pin member that passes through and supports the arm member 40, the advance / retreat end portion 30 and the upper wedge member 50, and 22 denotes the advance / retreat end portion 30 and the upper wedge member 50. A second pin member penetrating through the auxiliary plate member 25, an auxiliary plate member 25 for pivotally supporting the advancing / retreating end portion 30, the arm member 40 and the upper wedge member 50 by the first pin member 21 and the second pin member 22, and 26 an auxiliary member A shaft support hole for the first pin member 21 formed in the plate member 25, and a shaft support hole 27 for the second pin member 22 formed in the auxiliary plate member 25.

  The advancing / retreating end portion 30 supports the end portion of the horizontal member 12 as shown in FIGS. As shown in FIG. 3, the advancing / retreating end portion 30 includes slot portions 31 and 32 that are elongated holes formed in the horizontal direction through which the first pin member 21 and the second pin member 22 penetrate, When the member 21 and the second pin member 22 move in the slot portions 31 and 32, an upper wedge member 50, which will be described later, is attached to the horizontal member 12 so as to be movable back and forth between the first position and the second position. Further, as shown in FIG. 4, a wedge member upper holding portion 33 and a wedge member lower holding portion 34 that hold the upper wedge member 50 (upper wedge main body portion 51 described later) from above and below are provided. The advancing / retreating end portion 30 of the embodiment is substantially U-shaped in a side view.

  The advancing / retreating end portion 30 may have an appropriate structure such as being provided linearly at both ends of the horizontal member 12 as long as the end of the horizontal member 12 can be supported. The advancing / retreating end portion 30 of the embodiment is configured to support the horizontal member 12 via a bracket portion 35 as shown in FIGS. As shown in the figure, the bracket portion 35 may be formed in a direction directly above the advancing / retreating end portion 30 or may be formed in an oblique direction. By supporting the horizontal member 12 via the bracket portion 35, the horizontal member 12 can be installed at a position higher than the advance / retreat end portion 30. The bracket portion 35 and the horizontal member 12 are preferably welded. In addition, the code | symbol 36 in a figure is a horizontal material support part formed in circular arc shape in the bracket part 35 upper end part in order to support the horizontal material 12. FIG.

  Further, when the horizontal member 12 is supported via the bracket portion 35, in order to suppress the tilting of the scaffolding struts 1 and 1 to the inside (horizontal member 12 side) at the time of installing the brace 10 for temporary scaffolding, As shown in FIGS. 3 and 5, it is preferable to provide a contact plate portion 13 for the scaffold column 1 at the tip portion of the horizontal member 12. The abutting plate portion 13 can be supported when the scaffolding strut 1 tilts close to the inside of the scaffolding strut 1 in either the first position or the second position of the upper wedge member 50 described later. It has the board surface part 14 formed wide. The caulking plate portion 13 of the embodiment is formed in a substantially L shape when viewed from above, and can prevent the scaffold column 1 from tilting forward.

  As shown in FIGS. 2 and 3, the arm member 40 is pivotally attached to the upper end portions 11 </ b> A and 11 </ b> A of the diagonal members 11 and 11, and includes a collar portion 41, which rotates around the first pin member 21 as a rotation shaft. By moving, the collar portion 41 engages with the second pin member 22 to fix the diagonal members 11, 11 to the upper connecting portion 20. In this brace member 40, when the brace 10 for temporary scaffolding is installed, the slant member 11 is loaded on the slant member 11 side, so that the fixing pin 44 pivotally attached to the slant member 11 is rotated upward. 2 and 3, the opening 42 of the flange 41 is formed to open upward, and the opening 42 of the flange 41 is configured to engage with the lower side of the second pin member 22. Has been. Thereby, the arm member 40 can be effectively engaged with the second pin member 22 using the load of the diagonal member 11. In addition, the code | symbol 43 in a figure is a shaft support hole which the 1st pin member 21 penetrates.

  As shown in FIGS. 3 and 4, the upper wedge member 50 includes an upper wedge leg portion (upper short leg portion 52, upper long leg portion 53) engaged with the upper wedge receiver 2 and the upper wedge leg portions 52, 53. An upper wedge main body 51 that is orthogonal and extends to the opposite side of the scaffolding column 1 is provided. The upper wedge member 50 includes shaft support holes 56 and 57 formed in the horizontal direction through which the first pin member 21 and the second pin member 22 penetrate the upper wedge main body 51. In the figure, reference numeral 54 is formed between the upper wedge legs 52 and 53, and when the upper wedge legs 52 and 53 are inserted into the upper wedge receiver 2, the upper leg portion 55 holds the upper wedge holder 2 therebetween. This is a collar portion that is formed at the tip of the upper long leg portion 33 and improves the fixing property (hook condition) between the upper wedge receiver 2 and the upper wedge member 50.

  The relationship between the first position and the second position in the upper wedge member 50 of the upper connecting portion 20 will be described using the front view of the main part of FIGS. 6 and 7. The first position of the upper wedge member 50 shown in FIG. 6 is that the first pin member 21 and the second pin member 22 have moved to the front side (scaffolding column 1 side) of the slot portions 31 and 32 of the advance / retreat end portion 30. Along with this, the position is advanced to the front side (scaffolding column 1 side), and the space between the upper wedge members 50, 50 arranged at both ends of the horizontal member 12 is extended by a predetermined amount. At that time, the arm member 40 and the auxiliary plate member 25 through which the first pin member 21 and the second pin member 22 penetrate are similarly advanced. In the first position of the upper wedge member 50, the upper connecting portion 20 is engaged with the upper wedge receivers 2 b and 2 b (see FIG. 14) disposed on the side of the upper wedge receiver 2 facing between the scaffolding columns 1 and 1. Then, the horizontal member 12 is positioned laterally with respect to the scaffolding column 1 (see FIG. 5A).

  The second position of the upper wedge member 50 shown in FIG. 7 is that the first pin member 21 and the second pin member 22 have moved to the rear side (the horizontal member 12 side) of the slot portions 31 and 32 of the advance / retreat end portion 30. Accordingly, the distance between the upper wedge members 50, 50 arranged at both ends of the horizontal member 12 is reduced by a predetermined amount compared to the first position. It will be in the state. At that time, the arm member 40 and the auxiliary plate member 25 through which the first pin member 21 and the second pin member 22 penetrate are similarly retracted. In the second position of the upper wedge member 50, the upper connecting portion 20 is engaged with the upper wedge receivers 2 c and 2 a (see FIG. 14) that are disposed opposite to each other among the upper wedge receivers 2 that face each other between the scaffolding columns 1 and 1. Then, the horizontal member 12 is positioned on the inner side with respect to the scaffolding column 1 (see FIG. 5B).

  When the upper wedge member 50 moves in the horizontal direction between the first position and the second position, the wedge member upper holding portion 33 and the wedge member lower holding portion 34 of the advancing / retreating end portion 30 move in the vertical direction and the rotation direction. Movement, rattling, etc. are suppressed, and both movements are restricted only in the horizontal direction. For this reason, the holding | maintenance performance of the upper wedge member 50 becomes good, and the convenience of handling the brace 10 for temporary scaffolding increases by the movement of the 1st position of the upper wedge member 50 and a 2nd position becoming smooth.

  The lower connecting portion 60 is provided at the lower end portions 11B and 11B of the diagonal members 11 and 11, and is removably engaged with the lower wedge receiver 3 provided on the scaffolding struts 1 and 1. Yes, as shown in FIGS. 8-11, it has the lower side fixing | fixed part 70 and the lower side wedge member 90 is provided. In the figure, reference numerals 71 and 72 are two main body plate portions of the lower connection portion 60 connected by a beam portion 73 (plate connection portion), and 74 is the main body plate portion 71, 72 at the center of the main body plate portions 71 and 72. 72 is a wedge holding portion penetrating through 72.

  The lower fixing portion 70 fixes the diagonal member 11 at either a first position or a second position, which will be described later, corresponding to the forward / backward movement of the upper wedge member 50 between the first position and the second position. The slant member 11 has a slant member hole 61 provided in the lower end portion 11 </ b> B, a fixing rod member 80, and a fixing hole portion 85 provided in the lower connecting portion 60 through which the fixing rod member 80 is inserted. In the embodiment, the diagonal hole 61 includes a first diagonal hole 62 and a second diagonal hole 63 having a larger diameter than the first diagonal hole 62 as shown in FIGS.

  The fixing rod member 80 is a rod-like member for fixing the diagonal member 11 to the lower fixing portion 70 and is made of an appropriate member such as a screw, a bolt, or a pin. The fixed rod member 80 includes a first fixed rod member 81 used for fixing the first diagonal hole 62 and a first fixed hole 86 or a third fixed hole 88 described later, and a second diagonal hole 63. And a second fixing rod member 82 used for fixing to a second fixing hole 87 or a fourth fixing hole 89 described later. In the embodiment, the first fixed rod member 81 is a small-diameter rod-shaped member, and the second fixed rod member 82 is a rod-shaped member larger in diameter than the first fixed rod member 81.

  The fixing hole 85 has a first fixing hole 86 and a position corresponding to the first diagonal hole 62 and the second diagonal hole 63 when the diagonal 11 is in the first position in the lower connecting portion 60. A first diagonal hole 62 and a second diagonal when the diagonal member 11 is in the second position in the lower connecting portion 60, with the second fixed hole 87 having a diameter larger than that of the first fixed hole 86. A third fixing hole 88 and a fourth fixing hole 89 having a larger diameter than the third fixing hole 88 are provided at a position corresponding to the material hole 63.

  As shown in FIGS. 8 and 10, the lower wedge member 90 is engaged with the lower wedge receiver 3 and is inserted between the wedge holding portion 74 and the beam portion 73 of the lower connection portion 60. The lower long leg 91 and the lower short leg 92 inserted into the lower wedge receiver 3 are provided, and the lower wedge receiver 3 and the beam 73 are sandwiched between the lower long leg 91 and the lower short leg 92. . In the lower wedge member 90, the lower long leg portion 91 comes into contact with the wedge holding portion 74 when the lower long leg portion 91 is inserted between the wedge holding portion 74 and the beam portion 73. Inadvertent misalignment or the like of the lower wedge member 90 during engagement between the lower wedge member 3 and the lower wedge receiver 3 is suppressed, and the fixability of the lower wedge member 25 is improved. In the figure, reference numeral 93 denotes a lower leg portion formed between the lower long leg portion 91 and the lower short leg portion 92, and 94 denotes a drop of the lower wedge member 90 formed at the tip of the lower long leg portion 91. It is a retaining part for.

  The relationship between the first position and the second position of the diagonal member 11 will be described using the front view of the main part of FIGS. The first position of the diagonal member 11 shown in FIG. 8 is the first diagonal hole when the upper wedge member 50 is retracted to the rear side (the diagonal member 11 side) of the lower connecting portion 60 in association with the first position. The portion 62 and the first fixing hole 86 overlap with each other, and the second diagonal material hole 63 and the second fixing hole 87 overlap with each other, and are extended by a predetermined amount in the diagonal direction between the scaffolding columns 1 and 1. It becomes a state.

  The second position of the diagonal member 11 shown in FIG. 10 is advanced to the front side (scaffolding column 1 side) of the lower connecting portion 60 as the upper wedge member 50 is in the second position, and the first diagonal member hole portion. 62 and the third fixing hole 88 overlap with each other, and the second diagonal material hole 63 and the fourth fixing hole 89 overlap with each other, and are contracted by a predetermined amount in the diagonal direction between the scaffolding columns 1 and 1. It becomes.

  Next, the installation procedure of the brace 10 for temporary scaffolding is demonstrated. In the bracing 10 for the temporary scaffold before installation, the engagement between the heel part 41 of the heel member 40 and the second pin member 22 is released, and the heel arm member 40 and the diagonal member 11 are horizontally disposed with the first pin member 21 as a rotation axis. It is turned to the material 12 side, and the horizontal material 12 and the two diagonal materials 11 and 11 are overlapped. At that time, space can be saved by rotating the arm member 40 with respect to the diagonal member 11 and folding it with the fixing pin 43 as a rotation axis.

  Here, when the brace 10 for temporary scaffolding is installed in the upper wedge receivers 2b, 2b and the lower wedge receivers 3b, 3b arranged on the side of the scaffolding struts 1, 1, on one scaffolding strut 1 side, As shown in FIG. 6, the first pin member 21 and the second pin member 22 are moved to the front side (scaffolding column 1 side) of the slot portions 31 and 32 of the advancing / retreating end portion 30 to move the upper wedge member 50 to the first position. The upper wedge member 50 is inserted into the upper wedge receiver 2b and the upper wedge legs 52 and 53 hold the upper wedge receiver 2b.

  Subsequently, the hook member 41 of the hook member 40 to which the diagonal member 11 is attached is engaged with the second pin member 22 to fix the diagonal member 11 to the upper connecting portion 20. At this time, since the diagonal member 11 and the arm member 40 are pivotally attached to each other, the arm member 40 is appropriately pivoted about the fixing pin 43 as a center of rotation, so that the arm member 40 and the arm member 40 are pivoted appropriately. The attaching / detaching work of the collar portion 41 of the arm member 40 becomes easy.

  Similarly, on the other scaffold strut 1 side, after the upper wedge member 50 is advanced to the first position and inserted into the upper wedge receiver 2b, the heel portion 41 of the heel arm member 40 is engaged with the second pin member 22. The diagonal member 11 is fixed to the upper connecting portion 20 by combining them.

  Next, in one scaffolding column 1, as shown in FIG. 8, the beam portion 73 of the lower connecting portion 60 is brought close to the lower wedge receiver 3b, and the lower long leg portion 91 of the lower wedge member 90 is moved. While inserting between the wedge holding part 74 and the beam part 73, the lower short leg part 92 of the lower wedge member 90 is inserted in the lower wedge receiver 3b. Accordingly, the lower wedge receiver 3b and the beam portion 73 are held between the lower long leg portion 91 and the lower short leg portion 92, and the lower connecting portion 60 is fixed to the lower wedge receiver 3b.

  Then, the diagonal member 11 is retracted to the first position on the rear side (the diagonal member 11 side) of the lower connecting portion 60 and the first diagonal member hole 62 and the first fixing hole 86 of the diagonal member 11 are overlapped. The second diagonal hole 63 and the second fixing hole 87 of the diagonal 11 are overlapped, and the first fixing rod member 81 is inserted into the first diagonal hole 62 and the first fixing hole 86, and the second The fixing rod member 72 is inserted into the diagonal member hole 63 and the second fixing hole portion 87 to fix the diagonal member 11 to the lower connecting portion 60.

  Similarly, on the other scaffold strut 1 side, the lower connecting member 60 is similarly fixed to the lower wedge receiver 3b by the lower wedge member 90, and then the diagonal member 11 is first attached to the lower connecting portion 60. Fix in place. Thus, the installation of the temporary scaffolding braces 10 on the upper wedge receivers 2b and 2b and the lower wedge receivers 3b and 3b is completed.

  On the other hand, when the brace 10 for temporary scaffolding is installed in the upper wedge receivers 2c and 2a and the lower wedge receivers 3c and 3a that are arranged relative to each other between the scaffolding struts 1 and 1, on one scaffolding strut 1 side, As shown, the first pin member 21 and the second pin member 22 are moved to the rear side (horizontal member 12 side) of the slot portions 31 and 32 of the advancing / retreating end portion 30 to move the upper wedge member 50 to the second position. The upper wedge member 50 is retracted, the upper long leg portion 33 is inserted into the upper wedge receiver 2c, and the upper wedge leg portions 52 and 53 sandwich the upper wedge receiver 2c. Subsequently, the slant member 11 is fixed to the upper connecting portion 20 by engaging the collar portion 41 of the arm member 40 with the second pin member 22.

  Similarly, on the other scaffold strut 1 side, after the upper wedge member 50 is retracted to the second position and inserted into the upper wedge receiver 2a, the heel portion 41 of the heel arm member 40 is engaged with the second pin member 22. The diagonal member 11 is fixed to the upper connecting portion 20 by combining them.

  Next, as shown in FIG. 10, in one scaffolding column 1, the beam portion 73 of the lower connecting portion 60 is brought close to the lower wedge receiver 3a, and the lower long leg portion 91 of the lower wedge member 90 is moved. While inserting between the wedge holding part 74 and the beam part 73, the lower short leg part 92 of the lower wedge member 90 is inserted in the lower wedge receiver 3a. Accordingly, the lower wedge receiver 3a and the beam portion 73 are held between the lower long leg portion 91 and the lower short leg portion 92, and the lower connecting portion 60 is fixed to the lower wedge receiver 3a.

  Then, the diagonal member 11 is advanced to the second position on the front side (scaffolding column 1 side) of the lower connecting portion 60, and the first diagonal member hole 62 and the third fixing hole 88 of the diagonal member 11 are overlapped and inclined. The second diagonal member hole 63 and the fourth fixing hole 89 of the material 11 are overlapped, and the first fixing rod member 81 is inserted into the first diagonal member hole 62 and the third fixing hole 88, and the second diagonal member The fixing rod member 72 is inserted into the material hole portion 63 and the fourth fixing hole portion 89 to fix the diagonal member 11 to the lower connection portion 60.

  Similarly, on the other scaffold strut 1 side, the lower connecting member 60 is similarly fixed to the lower wedge receiver 3c by the lower wedge member 90, and then the diagonal member 11 is secondly attached to the lower connecting portion 60. Fix in place. By the above, installation to the upper wedge receivers 2c and 2a and the lower wedge receivers 3c and 3a of the brace 10 for temporary scaffolding is completed.

  As shown and described so far, the brace for temporary scaffolding according to the present invention is attached to the horizontal member by attaching the upper wedge member to the first position and the second position so as to move forward and backward. The positional deviation that occurs in the horizontal member due to the difference in the position of the upper wedge receiver to be used can be easily eliminated. In addition, in the lower connecting portion, the diagonal member can be fixed at either the first position or the second position in correspondence with the forward and backward movement of the first position and the second position of the upper wedge member. It is possible to easily cope with misalignment occurring in the diagonal member due to the difference in the position of the lower wedge receiver used for engagement.

  In addition, the lower connecting portion employs a fixing rod member, a fixing hole portion, and a diagonal hole portion, and has a relatively simple structure, so that it can easily cope with misalignment occurring in the diagonal material. I can do it. In particular, a first fixing hole and a second fixing hole are provided at positions corresponding to the first diagonal hole and the second diagonal hole when the diagonal is in the first position, and the diagonal is first. By providing the third fixing hole and the fourth fixing hole at positions corresponding to the first diagonal hole and the second diagonal hole in the case of the two positions, the diagonal is fixed at an incorrect position. This can be prevented. In addition, the first diagonal rod hole and the second fixing hole or the fourth fixing hole are used by fixing the first diagonal rod hole and the first fixing hole or the third fixing hole. By using the second fixing rod member for fixing to the portion, the fixing rod member can be prevented from being mistaken and can be fixed safely and reliably.

  Furthermore, since the brace for temporary scaffolding itself can flexibly correspond to the position of the wedge support of the scaffolding column, it can increase the flexibility of selection of the wedge support of the scaffolding column, and can flexibly respond to the structure of the building and work on site, Furthermore, it is no longer necessary to sequentially prepare materials according to the positions of the wedge holders of the individual scaffold columns, and the amount of materials can be reduced.

  In addition, the bracing for temporary scaffolding of the present invention is not limited to the above-described embodiment, and can be implemented by appropriately changing a part of the configuration without departing from the spirit of the invention. For example, in the embodiment, the groove portion of the advancing / retreating end portion is configured to be arranged in parallel in the horizontal direction, but the groove portion may be a single long hole through which the first pin member and the second pin member pass. Good.

  In the embodiment, the diagonal member is fixed to the first position or the second position with respect to the lower connecting portion after the lower connecting portion is fixed to the lower wedge receiver. Then, after fixing the diagonal member to the first position or the second position, the lower connecting portion may be fixed to the lower wedge receiver.

  Further, as another structure of the lower connecting portion, as in the lower connecting portion 60A shown in FIGS. 12 and 13, a support pin portion 101 is provided in the lower fixing portion 100, and the lower end portion 11B of the diagonal member 11 is provided with a first pin. You may comprise so that the 1 engaging part 111, the 2nd engaging part 112, and the lower groove part 113 may be formed. In the following description, the same reference numerals as those in the above-described embodiment represent the same configuration, and the description thereof is omitted.

  The first engaging portion 111 is for fixing the diagonal member 11 at the first position by engaging the support pin portion 101. The second engaging portion 112 is for fixing the diagonal member 11 at the second position by engaging the support pin portion 101.

  The lower groove portion 113 connects the first engaging portion 111 and the second engaging portion 112 so that the support pin portion 101 can slide. In the embodiment, it is formed in a substantially U shape when viewed from the front, and the first engaging portion 111 is provided at the end of the lower end of the diagonal member 11 (the scaffolding column 1 side), and the second engaging portion 112 is provided at the opposite end. Each of the diagonal members 11 is formed so as to protrude in the axial direction.

  In the lower fixing portion 100, when the diagonal member 11 is fixed at the first position, as shown in FIG. 12, the support pin portion 101 is placed along the lower groove portion 113 at the lower end side of the diagonal member 11 (on the scaffolding column 1 side). The diagonal member 11 can be easily fixed at the first position by being slid to the first engaging portion 111. Further, as shown in FIG. 13, the support member 101 is slid along the lower groove 113 to the opposite side of the lower end of the diagonal member 11 to be engaged with the second engaging portion 112, whereby the diagonal material 11 is It can be fixed in the second position. Accordingly, in the lower connecting portion 60A, as with the lower connecting portion 60, it is possible to easily cope with the positional deviation that occurs in the diagonal member with a relatively simple structure.

DESCRIPTION OF SYMBOLS 1 Scaffolding strut 2 (2a, 2b, 2c, 2d) Upper wedge receiver 3 (3a, 3b, 3c, 3d) Lower wedge receiver 10 Bracing for temporary scaffolding 11 Diagonal material 12 Horizontal material 20 Upper connection part 21 First pin member 22 Second pin member 30 Advancing and retracting end portion 40 Brace arm member 41 Brim portion 50 Upper wedge member 51 Upper wedge body portion 52, 53 Upper wedge leg portion 60 Lower connection portion 70 Lower fixing portion 90 Lower wedge member

Claims (9)

Two diagonal members arranged in an X shape between the scaffolding struts, a horizontal member laid between the scaffolding struts, provided at both ends of the horizontal member and pivotally attached to the diagonal member, An upper connecting portion that is removably engaged with an upper wedge receiver provided on the scaffolding column, and a lower wedge receiver that is provided at each lower end portion of the diagonal member and provided on the scaffolding column. In the brace for temporary scaffolding comprising a lower connecting part that is removably engaged,
The upper connecting portion includes a brace member pivotally attached to an upper end portion of the diagonal member, an advancing / retracting end portion supporting an end portion of the horizontal member, an upper wedge leg portion engaged with the upper wedge receiver, An upper wedge member having an upper wedge main body portion that is orthogonal to the upper wedge leg portion and extends to the opposite side of the scaffolding strut, and the bracelet member, the advance / retreat end portion, and the upper wedge member are passed through and pivotally supported. A first pin member, and a second pin member penetrating the advancing and retracting end portion and the upper wedge member,
The advancing / retreating end portion includes a slot portion formed in a horizontal direction through which the first pin member and the second pin member pass, and the first pin member and the second pin member move in the slot portion. The upper wedge member is attached to the horizontal member so as to move forward and backward between the first position and the second position,
The said arm member is provided with a collar part, and the said arm part engages with the said 2nd pin member by rotating the said arm member about the said 1st pin member as a rotating shaft, and via the said arm member. The diagonal member is configured to be fixed to the upper connecting portion,
The lower connecting portion includes a lower fixing portion that fixes the diagonal member at either the first position or the second position in response to the forward and backward movement of the first wedge position and the second position of the upper wedge member. A brace for temporary scaffolding, comprising: a lower wedge member that is engaged with the lower wedge receiver.   The brace for a temporary scaffold according to claim 1, wherein the advancing / retreating end portion supports the horizontal member via a bracket portion.   The brace for temporary scaffolding according to claim 2, wherein the horizontal member has a patch plate portion for the scaffold strut at the tip portion of the horizontal member.   The brace for a temporary scaffold according to any one of claims 1 to 3, wherein the advancing / retreating end portion includes a wedge member upper holding portion and a wedge member lower holding portion that sandwich the upper wedge main body portion from above and below.   The brace for a temporary scaffold according to any one of claims 1 to 4, wherein an opening of the heel portion of the heel arm member is formed to open upward.   The lower fixing portion includes a fixing rod member, a fixing hole provided in the lower connecting portion through which the fixing rod member is inserted, and an oblique material hole provided in a lower end portion of the oblique material. The brace for temporary scaffolding according to any one of claims 1 to 5. The diagonal hole is composed of a first diagonal hole and a second diagonal hole having a diameter larger than that of the first diagonal hole,
A first fixing hole portion and the first fixing hole portion as the fixing hole portions at positions corresponding to the first oblique material hole portion and the second oblique material hole portion when the oblique material is in the first position in the lower connection portion. The first diagonal hole portion and the second diagonal hole portion provided with a second fixed hole portion having a diameter larger than that of the one fixed hole portion and the diagonal member being in the second position in the lower connecting portion. The brace for temporary scaffolding according to claim 6, comprising a third fixing hole portion and a fourth fixing hole portion having a diameter larger than that of the third fixing hole portion as the fixing hole portion at a position corresponding to.   The fixing rod member includes a first fixing rod member used for fixing the first diagonal hole portion and the first fixing hole portion or the third fixing hole portion, and the second diagonal member hole portion and the second fixing hole portion or the second fixing hole portion. The brace for temporary scaffolding according to claim 7, comprising a second fixing rod member used for fixing to the four fixing holes. A support pin part is provided on the lower fixed part of the lower connection part,
The support pin portion is engaged with the lower end portion of the diagonal member to fix the diagonal member at the first position, and the support pin portion is engaged to attach the diagonal member to the diagonal member. A second engagement portion that is fixed at a second position and a lower groove portion that connects the first engagement portion and the second engagement portion so that the support pin portion can slide are formed. Item 6. A brace for temporary scaffolding according to any one of items 1 to 5.

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