JP4936085B2 - Construction structure of rod-shaped member - Google Patents

Description

  The present invention relates to an erected structure of a bar-shaped member, and more particularly to a bar-shaped member having an erected structure that can be easily erected between columns.

  Temporary scaffolding constructed at a construction site or the like is assembled by installing a scaffolding board in a framework composed of a combination of columns and horizontal pillars (also called horizontal members, arms, horizontal rails, etc.). The scaffolding board is mainly assembled on the horizontal member, and the temporary scaffolding is completed. Since such a temporary scaffold involves a work at a high place, the stability and safety of the scaffold are sufficiently secured.

  When assembling a temporary scaffolding, braces (slanting materials, diagonal materials, etc.) using rod-shaped members are installed in the horizontal direction and diagonal direction between the columns in order to increase the stability of the columns that are erected in the vertical direction. (For example, refer patent document 1 etc.). When a temporary staircase is attached to a temporary scaffold, at present, from the viewpoint of safety of the staircase, the diagonal bracing is often used as a handrail for a temporary staircase constructed on the temporary scaffold. Although the diagonal bracing corresponds to the slope of the temporary staircase that is temporarily set on the scaffolding, the position of the staircase and the handrail may not correspond because it is not necessarily a handrail dedicated to the temporary staircase.

  Recently, a member called a flange (or heel) is used in addition to a conventional holder as a member for attaching a strut and a brace of a temporary scaffold (see, for example, Patent Document 2). As can be seen from the illustration of Patent Document 2, when various braces are installed using flanges, the connecting member locking pieces (wedges) provided at the ends of the braces in the holes (holes) between the flanges. Is inserted. Usually, when a brace is installed between columns using a flange, the brace is connected and fixed using the flange hole of one column and the flange hole of the other column facing each other. That is, the hole of the flange located on the vertical plane which connects between the support | pillars arranged in parallel is used.

  However, the flange holes in the above-described arrangement are often used preferentially for connection and fixing of scaffolding plates and lateral braces. Therefore, if an attempt is made to attach a brace in an oblique direction such as a handrail application, the brace must be installed on a flange at a position different from a desired position by intentionally shifting the brace attachment position. This is the reason why it is difficult to align the handrail with the stairs in the construction scaffold.

  In addition, the bracing disclosed in Patent Document 2 has a structure in which both the bracing in the horizontal direction and the bracing in the oblique direction are rotatably connected to each other via a connecting member. For this reason, the structure of the brace itself becomes complicated and the weight increases at the same time. From the viewpoint of workability, there is an urgent need to reduce the weight of the member and improve the ease of handling.

  Because of these factors, the convenience and freedom of selection of the mounting position when installing various rod-like members such as handrails for temporary staircases on temporary scaffolding should be increased, and it should be installed on the temporary scaffolding pillars without difficulty. Thus, a construction of a rod-shaped member that can reduce the weight of the member and improve the ease of handling during installation and dismantling has been demanded.

JP 2004-68435 A JP 2002-317552 A

  The present invention has been proposed in view of the above situation, and it is possible to increase the convenience and freedom of selection of the attachment position when the rod-like member is installed on the temporary scaffolding, and to install the rod-like members on the support scaffolding without difficulty. It is possible to provide a rod-like member erection structure capable of reducing the weight of the member and improving the ease of installation and dismantling.

  That is, according to the first aspect of the present invention, there is provided a first support column in which upper wedge receiving members having wedge receivers on both the left and right sides of the support column are fixed, and the first support column. The lower wedge receiving member has a structure in which a rod-shaped member is installed in a vertically inclined direction between the upper wedge receiving member and the lower wedge receiving member of the second support column, the rod-shaped member comprising: a rod-shaped main body; An upper mounting portion formed on the upper side of the rod-shaped main body and a lower mounting portion formed on the lower side of the rod-shaped main body are provided, and the upper mounting portion touches the side surface of the column of the first support column. Formed on the other side of the contact portion and the upper connecting portion of the rod-shaped main body formed on the left or right side of the strut of the abutting portion, and on the other side of the abutting portion opposite to the left and right of the strut One of the left and right sides of the upper wedge receiving member An upper wedge member inserted into the wedge receiving portion, and the lower attachment portion is on the opposite side to the lower connecting portion with the rod-shaped main body and the wedge receiving portion into which the upper wedge member is inserted. And a lower wedge member inserted into the wedge receiving portion on the other side.

  According to a second aspect of the present invention, the rod-shaped member is a temporary stair railing according to the first aspect of the present invention.

  According to a third aspect of the present invention, there is provided the rod-like member erection structure according to the first or second aspect, wherein the upper wedge receiving member and the lower wedge receiving member have a wedge receiving portion in a cross shape.

  According to a fourth aspect of the present invention, there is provided the rod-like member erection structure according to any one of the first to third aspects, wherein the contact portion of the upper mounting portion is formed in a semicircular surface shape corresponding to the side surface of the column. .

  According to a fifth aspect of the present invention, there is provided the rod-shaped member erection structure according to any one of the first to fourth aspects, wherein the abutting portion of the upper mounting portion abuts against a side surface of the support on the rod-shaped member side.

  According to a sixth aspect of the present invention, in the lower mounting portion, the lower connecting portion has an opening formed in a horizontal direction for accommodating the wedge receiving portion of the lower wedge receiving member, and the lower wedge. A member is disposed in the lower connecting portion so as to be movable up and down, and when the lower mounting portion is attached to the lower wedge receiving member, the wedge receiving portion of the lower wedge receiving member is accommodated in the opening after the wedge receiving portion is received. The rod-like member erection structure according to any one of claims 1 to 5, wherein an insertion wedge portion of the lower wedge member is inserted into a portion.

  According to a seventh aspect of the present invention, the lower wedge member includes a long leg portion provided with an upper retaining portion at an upper portion of the lower wedge member and a lower retaining portion at a lower portion of the lower wedge member. The rod-like member erection structure according to Item 6.

  In the invention according to claim 8, the lower wedge member includes a wedge holding portion for holding the insertion wedge portion at the lower connecting portion at a position where the insertion wedge portion is not inserted into the wedge receiving portion of the lower wedge receiving member. Or it concerns on the construction structure of the rod-shaped member of 7.

  According to the construction structure of the rod-shaped member according to the first aspect of the present invention, the first support column in which the upper wedge receiving members having the wedge receiving portions on the left and right sides of the support column are fixed and the first support column are arranged in parallel. A rod-shaped member is constructed in a vertically slanting direction between the upper wedge receiving member and the lower wedge receiving member of a second support column having a lower wedge receiving member having a wedge receiving portion on both sides, the rod-shaped member Comprises a rod-shaped main body, an upper mounting portion formed on the upper side of the rod-shaped main body, and a lower mounting portion formed on the lower side of the rod-shaped main body, wherein the upper mounting portion is the first support column. The contact portion of the contact portion with the side surface of the support, the upper connecting portion of the rod-shaped main body formed on either the left or right side of the support portion of the contact portion, and the left and right opposite sides of the upper connecting portion of the contact portion and the support column The upper wedge receiving member formed on the other side An upper wedge member that is inserted into the wedge receiving portion on either one of the left and right sides, the lower mounting portion includes a lower connection portion with the rod-shaped main body, and a wedge receiving portion into which the upper wedge member is inserted. And a lower wedge member that is inserted into the wedge receiving portion on the other side that is opposite to the left and right sides, the convenience and flexibility of selection of the attachment position of the rod-shaped member when the rod-shaped member is installed on the temporary scaffolding is increased. It can be erected without difficulty on the column of the temporary scaffold. In addition, the weight of the member can be reduced, and a rod-shaped member erection structure that can improve the ease of handling the dismantling and the installation of the rod-shaped member on the temporary scaffold can be realized.

  According to the construction structure of the bar-shaped member according to the invention of claim 2, in the invention of claim 1, since the bar-shaped member is a handrail for temporary staircase, it is possible to simplify the construction of the handrail for temporary staircase to the temporary scaffold. it can.

  According to the construction of the rod-shaped member according to the invention of claim 3, in the invention of claim 1 or 2, since the upper wedge receiving member and the lower wedge receiving member have the wedge receiving portions in a cross shape, both the upper and lower wedge receivers The structure of the member is simple. Moreover, since it is symmetrical, the method of applying a load becomes uniform, and the strength when the wedge receiving member is fixed to the column can be secured.

  According to the erected structure of the bar-like member according to the invention of claim 4, in the invention of any one of claims 1 to 3, the contact portion of the upper mounting portion is formed in a semicircular surface shape corresponding to the side surface of the column. For this reason, the area where the contact portion and the support column are attached increases, and the installation of the rod-shaped member and the support column can be stabilized.

  According to the construction of the bar-shaped member according to the invention of claim 5, in the invention of any one of claims 1 to 4, the abutment portion of the upper mounting portion abuts the side surface of the column on the rod-shaped member side, The rod-shaped main body can be disposed at a position on the left or right side of the first column and the second column arranged in parallel with the first column. Therefore, the rod-shaped main body does not block between the columns arranged side by side.

  According to the erected structure of the bar-like member according to the invention of claim 6, in the invention of any one of claims 1 to 5, in the lower attachment portion, the lower connecting portion is a wedge receiver of the lower wedge receiving member. The lower wedge member is disposed in the lower connecting portion so as to be vertically movable, and the lower attachment portion is attached to the lower wedge receiving member. In this case, after the wedge receiving portion of the lower wedge receiving member is accommodated in the opening, the insertion wedge portion of the lower wedge member is inserted into the wedge receiving portion. Will be easier and work on site will be easier.

  According to the construction of the rod-shaped member according to the invention of claim 7, in the invention of claim 6, the lower wedge member is provided with an upper retaining portion at the upper portion of the lower wedge member, and at the lower portion of the lower wedge member. Since the long leg portion provided with the lower retaining portion is provided, the holding in the lower connecting portion of the lower wedge member can always be realized. There is no need to carry or search for the lower wedge member, and the possibility of losing the lower wedge member is reduced.

  According to the erected structure of the rod-shaped member according to the invention of claim 8, in the invention of claim 6 or 7, the lower wedge member does not insert the insertion wedge portion into the wedge reception portion of the lower wedge receiving member. Since the wedge holding portion for holding the lower connection portion is provided, the lower wedge member can be temporarily placed by hooking the wedge holding portion to the wedge temporary placement portion. In positioning when attaching the lower attachment portion to the lower wedge receiving member, the lower wedge member does not get in the way.

It is a whole front view of the rod-shaped member which concerns on one Example of this invention. It is a fragmentary perspective view of the support | pillar to which the wedge receiving member was fixed. It is a perspective view which shows the installation state of an upper side attaching part and a support | pillar. It is a top view which shows the construction state of an upper side attachment part and a support | pillar. It is a perspective view which shows the construction state of a lower attachment part and a support | pillar. It is a top view which shows the installation state of a lower attachment part and a support | pillar. It is a side view of the lower attachment part before inserting a lower wedge member. It is a side view of the lower attachment part after inserting a lower wedge member. It is a fragmentary perspective view of the upper side attachment part of the rod-shaped member which concerns on another Example. FIG. 10 is a top view of FIG. 9. It is a top view of the rod-shaped member which concerns on another Example.

  The whole front view of FIG. 1 represents the installation state of the installation structure of the rod-shaped member of this invention. The rod-shaped member 30 illustrated as the first embodiment is a handrail for a built-in staircase that is built on a column of a built scaffold together with the temporary staircase 1 as defined in the invention of claim 2. This can be said to be a kind of diagonal bracing (slanting material). Hereinafter, the handrail for erection stairs will be described as an example of a bar-shaped member. An upper wedge receiving member 15 (first wedge receiving member) is fixed to the first support column 11 used for the temporary scaffold shown in the figure. A lower wedge receiving member 25 (second wedge receiving member) is also fixedly attached to the second support column 21 that is juxtaposed with the first support column 11.

  The rod-shaped member 30 includes a rod-shaped main body 40, an upper mounting portion 50 (first mounting portion) formed on the upper side (one side) of the rod-shaped main body 40, and the rod-shaped member 30. A lower attachment portion 60 (second attachment portion) formed on the lower side (other side) of the main body 40 is provided. The rod-shaped member 30 is connected (attached) to the upper wedge receiving member 15 of the first support column 11 via the upper mounting portion 50 and connected to the lower wedge receiving member 25 of the second support column 21 via the lower mounting portion 60 ( Attached). The rod-shaped member 30 is installed between the upper wedge receiving member 15 and the lower wedge receiving member 25 in an oblique direction.

  As is apparent from FIG. 1 and the like, the lower wedge portion of the other rod-shaped member is connected (attached) to the upper wedge receiving member 15, and the upper attachment portion of the other rod-shaped member is connected to the lower wedge receiving member 25 ( Attached). Accordingly, the bar-like member is continuously installed between the columns through the upper wedge receiving member and the lower wedge receiving member. In the figure, reference numeral 2 denotes a horizontal column (referred to as a horizontal member, a brace, a horizontal rail, etc.) provided on the support column, and 3 denotes a tread of a temporary staircase.

  The 1st support | pillar 11 and the 2nd support | pillar 21, and the upper wedge receiving member 15 and the lower wedge receiving member 25 of an Example are mutually the same shape. Therefore, both will be described with reference to the perspective view of FIG. The upper wedge receiving member 15 includes a flange member 13 (flange member), and is fixed to the first support column 11 by welding or the like. The upper wedge receiving member 15 has wedge receiving portions on the left and right sides of the first support column 11, and becomes an upper left wedge receiving portion 16 and an upper right wedge receiving portion 17. The left and right wedge receiving portions 16 and 17 shown in the figure are holes formed in the flange member 13 and are surrounded by the flange edge portion 14. Reference numeral 18 denotes an upper front wedge receiving portion (see FIG. 4 described later).

  Similarly, the lower wedge receiving member 25 also includes a flange member 23 (flange member), and is fixed to the second support column 21 by welding or the like. The lower wedge receiving member 25 also has wedge receiving portions on both the left and right sides of the second support column 21 to form a lower left wedge receiving portion 26 and a lower right wedge receiving portion 27. The left and right wedge receiving portions 26 and 27 are holes formed in the flange member 23 and are surrounded by the flange edge 24. Reference numeral 29 denotes a lower rear wedge receiving portion (see FIG. 6 described later).

  As can be seen from the drawing and defined in the invention of claim 3, the upper wedge receiving member 15 and the lower wedge receiving member 25 have a cross-shaped wedge receiving portion (see FIGS. 4 and 6 described later). ). By making the wedge receiving portion into a cross shape, the structure of the wedge receiving member is simplified and its manufacture is also simplified. Further, since the wedge receiving member has a cruciform symmetrical shape, the load is applied in a uniform manner, and the strength when the wedge receiving member is fixed to the column can be secured.

  3 and 4 are enlarged views showing a state in which the upper mounting portion 50 is connected (attached) to the upper wedge receiving member 15 shown in FIG. The upper mounting portion 50 includes an abutment portion 51 that abuts on the column side surface 11s of the first strut 11, and an upper connection portion 55 that is formed on either the left or right side (one side) of the abutment portion 51 and is coupled to the rod-shaped main body 40 The upper connecting portion 55 has an upper wedge member 58 formed on the other side of the abutting portion 51 which is the opposite side of the side connected to the abutting portion 51. The upper connecting portion 55 and the upper wedge member 58 may be formed as members integrated with the contact portion 51, or individual members can be combined by welding, bolting, or the like.

  Usually, the column is cylindrical as shown in the embodiment. Therefore, as defined in the invention of claim 4, the abutment portion 51 of the upper mounting portion 50 is formed in a semicircular surface shape 51s corresponding to the shape of the column side surface 11s (see particularly FIG. 4). When the contact portion 51 has a semicircular shape, the deposition area between the contact portion and the support column increases. And the installation of the rod-shaped member and the column is stabilized.

  In the first embodiment, the arcuate direction of the semicircular surface shape 51 s of the contact portion 51 is the side on which the rod-shaped main body 40 extends from the upper mounting portion 50. In this case, when a force of pressing down from above is applied to the rod-shaped main body 40, it becomes a force of pressing the support column side surface 11s of the first support column 11 from the contact unit 51, and the contact between the contact unit 51 and the first support column 11 is strengthened. The In addition, in the case of the direction of the contact portion 51 of the first embodiment, it is easy to attach the upper attachment portion to the first support column.

  As defined in the invention of claim 5, the abutment portion 51 of the upper attachment portion 50 is in contact with the side surface of the first column 11 on the rod-shaped member 30 (rod-shaped main body 40) side. The upper connection portion 55 is provided so as to protrude in the left-right direction of the end portion of the contact portion 51 from the connection position of the contact portion 51 and the upper connection portion 55 shown in FIGS. When the first support column 11 and the second support column 21 are arranged side by side, the rod-shaped main body 40 can be disposed at a position that is always on the left or right side of the both columns. Therefore, the rod-shaped main body 40 does not block between the support columns arranged side by side.

  The upper wedge member 58 is inserted into either the left or right side of the upper wedge receiving member 15 and the wedge receiving portion. The construction of the rod-shaped member 30 and the first support column 11 is due to the contact between the contact portion 51 and the support column 11 as well as the insertion of the wedge receiving portions of the upper wedge member 58 and the upper wedge receiving member 15. Therefore, erection is simple and stable.

  As can be understood from FIGS. 3 and 4, the upper wedge member 58 of the upper mounting portion 50 of the rod-shaped member 30 in the illustrated embodiment is the upper right wedge receiving portion 17 of the upper wedge receiving member 15 of the first column 11 (paper surface). Inserted on the right). In this case, the upper left wedge receiving portion 16 (the left side of the sheet) opposite to the upper right wedge receiving portion 17 of the upper wedge receiving member 15 is vacant. Therefore, a lower mounting portion 60 (shown by a broken line in FIG. 3), which will be described later, is connected to the vacant side upper left wedge receiving portion 16. In other words, the rod-shaped member 30 is constructed while the wedge receiving portions of the upper and lower wedge receiving members are alternately arranged on the left and right in an obliquely up and down direction. In the abutting portion of the upper mounting portion, the direction in which the upper connecting portion and the upper wedge member are provided can be reversed from that in the illustrated embodiment. This is appropriate according to the temporary scaffold installation situation.

  The wedge receiving portion (upper right wedge receiving portion 17) of the upper wedge receiving member 15 into which the above upper wedge member 58 is inserted, and the lower wedge receiving portion (upper left wedge portion) on the side of the upper connecting portion 55 on the opposite side. The positional relationship of the receiving part 16) is symmetrical. And the direction of the wedge receiving part used for construction of the rod-shaped member 30 is a direction orthogonal to the parallel installation direction of a support | pillar. For this reason, it is not necessary to use the wedge receiving part which becomes the parallel arrangement direction of the support | pillar with high use frequency in the temporary scaffold among the upper wedge receiving members 15 of FIG. Therefore, other handrail braces (not shown) in the horizontal direction can be easily attached using the upper front wedge receiving portion 18 and the upper rear wedge receiving portion 19 without interfering with the rod-shaped member 30.

  5 and 6 are enlarged views showing a state in which the lower attachment portion 60 is connected (attached) to the lower wedge receiving member 25 of FIG. 1 described above. The lower mounting portion 60 includes a lower connecting portion 65 that is coupled to the rod-shaped main body 40, and a lower wedge member 68 that is used to connect to the lower wedge receiving member 25 that is fixed to the second support column 21. . Reference numeral 28 denotes a lower front wedge receiving portion, 66 denotes a temporary wedge holding portion, 73 denotes an upper retaining portion, and 74 denotes a lower retaining portion. In addition, the lower wedge member 68 is opposite to the wedge receiving portion (the upper right wedge receiving portion 17 in FIGS. 3 and 4) of the upper wedge receiving member 15 into which the upper wedge member 58 is inserted. It is inserted into the wedge receiving portion on the other side of the lower wedge receiving member 25 (the lower left wedge receiving portion 26 in FIGS. 5 and 6).

  As can be easily understood from the drawing, of the symmetrical wedge receiving portions (the lower left wedge receiving portion 26 and the lower right wedge receiving portion 27) on the left and right sides of the lower wedge receiving member 25 fixed to the second support column 21. When the lower mounting portion 60 (lower wedge member 68) is connected (attached) to the lower left wedge receiving portion 26 (left side of the drawing), the lower right wedge receiving portion 27 (right side of the drawing) on one side of the left and right wedge receiving portions. ) Is empty. Therefore, the upper wedge member 58 of the upper mounting portion 50 of another rod-like member is inserted into the lower right wedge receiving portion 27 (indicated by a broken line in FIG. 5). Similar to the description in FIG. 3, the rod-shaped member 30 is constructed so that the wedge receiving portions of the upper and lower wedge receiving members are alternately arranged on the left and right sides in an obliquely up and down direction. In this way, the rod-shaped member 30 can be erected continuously without competing at the wedge receiving portion of the wedge receiving member between the columns arranged side by side.

  Further, in connection (attachment) between the lower mounting member 60 and the lower wedge receiving member 25, similarly to the upper mounting member 50, without using the wedge receiving portion that is the juxtaposed direction of the columns that are frequently used in the temporary scaffolding. That's it. Therefore, braces (not shown) or the like can be easily attached using the lower front wedge receiving portion 28 and the lower rear wedge receiving portion 29.

  Next, as defined in the sixth aspect of the present invention, the lower connecting portion 65 is formed with an opening 63 opened in the horizontal direction for accommodating the wedge receiving portion of the lower wedge receiving member 25. In the lower connection portion 65 of the embodiment, the lower wedge member 68 is surrounded by the first side plate portion 61, the second side plate portion 62, and the connection side plate portion 64 and is accommodated in the lower connection portion. Therefore, the lower wedge member 68 is held in the lower connecting portion 65 so as to be movable up and down.

  By providing the lower connecting portion and the lower wedge member on the lower end side of the rod-like member, the connection and fixing work with the wedge receiving member provided on the support column is facilitated. Therefore, the work on site is also simplified.

  Next, the details of the lower wedge member 68 and the state of connection (attachment) between the lower wedge member 68 and the lower wedge receiving member 25 will be described with reference to FIGS. The lower wedge member 68 of the illustrated embodiment includes an insertion wedge portion 71 inserted into the wedge receiving portion of the lower wedge receiving member 25, a long leg portion 72 that sandwiches the flange edge portion 24 of the lower wedge receiving member 25 from above, A wedge shoulder 69 connecting the insertion wedge 71 and the long leg 72 is provided. A wedge space 79 is formed immediately below the wedge shoulder 69 to separate the insertion wedge 71 and the long leg 72 into a U-shape. The distance between the insertion wedge portion 71 and the long leg portion 72 in the wedge space portion 79 is appropriate according to the width of the flange portion 24 of the lower wedge receiving member 25.

  In the lower wedge member 68, an upper retaining portion 73 is provided on the upper portion of the lower wedge member 68, in the embodiment, on the wedge shoulder portion 69, as defined in the invention of claim 7. Further, a lower retaining portion 74 is provided at the lower portion of the lower wedge member 68, in the embodiment, at the end of the long leg portion 72. The distance between the upper retaining portion 73 and the lower retaining portion 74 is set to a length that can sufficiently secure the vertical movement of the lower wedge member 68 within the lower connecting portion 65, that is, the insertion and removal of the insertion wedge portion 71. Is done.

  The upper retaining portion 73 is formed in a protruding amount exceeding the distance between the first side plate portion 61 and the second side plate portion 62 (see FIG. 6). Therefore, the lower wedge member 68 will not inadvertently fall down from between the first side plate portion 61 and the second side plate portion 62 that constitute the lower connection portion 65. Further, the lower retaining portion 74 at the end of the long leg portion 72 is also formed with a protruding amount exceeding the distance between the first side plate portion 61 and the second side plate portion 62. Similarly, the lower wedge member 68 will not inadvertently fall out from between the first side plate portion 61 and the second side plate portion 62 constituting the lower connection portion 65 (see FIG. 5).

  Further, the lower wedge member 68 is provided with a wedge holding portion 75 as defined in the invention of claim 8. The hook-shaped wedge holding portion 75 shown in the figure has the lower wedge member 68 connected to the lower connecting portion at a position where the insertion wedge portion 71 is not inserted into the wedge receiving portion of the lower wedge receiving member 25 (lower left wedge receiving portion 26 shown in the drawing). It is used when the wedge is temporarily held by the wedge temporary holder 66.

  The rod-shaped member of the present invention is mainly constructed on a column of a temporary scaffold. Considering such high-place work, it is complicated for the worker to collect the necessary members at the work site each time, bring it from another place, or carry it by the worker. It is not preferable in terms of work efficiency. Therefore, it is convenient to equip necessary parts with necessary members in advance, which is preferable from the viewpoint of improving the efficiency of field work.

  Therefore, by providing the lower wedge member with the upper retaining portion and the lower retaining portion, it is possible to always hold the lower wedge member in the lower connecting portion. This eliminates the trouble of carrying and searching for the lower wedge member and reduces the possibility of losing the lower wedge member. Further, the lower wedge member can be temporarily placed by hooking the wedge holding portion on the wedge temporary placement portion. For example, in positioning when attaching the lower attachment portion to the lower wedge receiving member, the lower wedge member does not get in the way and does not hinder both connection operations.

  When attaching the lower attachment portion 60 to the lower wedge receiving member 25, FIG. 7 shows a state where the lower wedge receiving member 25 is inserted into the opening 63 of the lower connection portion 65 of the rod-shaped member 30. As shown in the figure, the lower wedge member 68 is once lifted upward from the state in which the wedge holding portion 75 of the lower wedge member 68 is placed on the temporary wedge holder 66. At this time, the insertion wedge portion 71 of the lower wedge member 68 is aligned immediately above the wedge receiving portion (lower left wedge receiving portion 26 in the figure) that is the insertion destination.

  In FIG. 8, the insertion wedge portion 71 of the lower wedge member 68 is pushed down with respect to the wedge reception portion (lower left wedge reception portion 26 in the drawing) of the lower wedge reception member 25 accommodated at a predetermined position in the opening 63. . Therefore, the insertion wedge portion 71 is inserted into the lower left wedge receiving portion 26. The flange edge 24 of the lower wedge receiving member 25 is sandwiched from three directions: an insertion wedge portion 71, a long leg portion 72, and a wedge shoulder portion 69. As a result, the lower mounting portion 60 and the lower wedge receiving member 25 are connected (attached) via the lower connecting portion 65 and the lower wedge member 68, and the installation of the rod-shaped member 30 on the second support column is completed.

  9 and 10 are main views of the upper mounting portion 50A of the rod-shaped member 30A according to the second embodiment. In the upper mounting portion 50A of the rod-shaped member 30A, the direction of the arc portion of the semicircular surface shape of the contact portion 51A that contacts the first support column 11 (see FIG. 10) is the upper mounting portion 50 of the first embodiment described above. It is opposite to the contact portion 51 (see FIG. 4). In the contact portion 51A of the second embodiment, when a force for pulling down the rod-shaped main body 40 is applied, the contact portion 51A is attracted toward the first support column by receiving this force. As a result, the close contact between the contact portion 51A and the first support column is strengthened. Whether the upper mounting portion of the first embodiment or the upper mounting portion of the second embodiment is adopted takes into consideration the installation location of the rod-shaped main body, its length, weight, usage, and the like.

  FIG. 11 shows an embodiment of a rod-shaped member that discloses another structure of the upper mounting portion. FIG. 11A shows a third embodiment, and FIG. 11B shows a fourth embodiment. In the upper mounting portion 50B of the rod-shaped member 30B of the third embodiment, the rod-shaped main body 40 is directly coupled to the contact portion 51 to form the upper coupling portion 55s. In the upper mounting portion 50C of the rod-like member 30C of the fourth embodiment, the rod-like main body 40 is directly connected to the contact portion 51A to form the upper connecting portion 55t. The rod-shaped main body and the contact portion are connected by welding, bolting or the like. Or it is also possible to form a rod-shaped main body and a contact part from one member. In the case of the illustrated embodiment, since the structure in the vicinity of the upper connecting portion is simple, the rod-shaped member itself can be finished at low cost.

  The same reference numerals are used for common members in each drawing, and the description thereof is omitted. In addition, unless it deviates from the meaning of invention, the structure other than the Example of an indication is naturally accept | permitted.

  According to the construction structure of the rod-shaped member described so far, the convenience and freedom of selection of the mounting position of the rod-shaped member when suspending the rod-shaped member on the temporary scaffolding is increased, and the rod-shaped member can be installed on the temporary scaffolding column without difficulty. Can do. In addition, the weight of the member can be reduced, and a rod-shaped member erection structure that can improve the ease of handling the dismantling and the installation of the rod-shaped member on the temporary scaffold can be realized. Therefore, it greatly contributes to ensuring the safety of workers in the temporary scaffold. The rod-shaped member is convenient as a skew member or a handrail, and is easy to construct.

DESCRIPTION OF SYMBOLS 1 Temporary stairs 3 Tread board of temporary stairs 11 1st support | pillar 13 鍔 member 15 Upper wedge receiving member 16 Upper left wedge receiving part (wedge receiving part)
17 Upper right wedge receiver (wedge receiver)
21 2nd support | pillar 23 collar member 25 lower wedge receiving member 26 lower left wedge receiving part (wedge receiving part)
27 Lower right wedge receiver (wedge receiver)
30 Bar-shaped member 40 Bar-shaped main body 50 Upper mounting portion 51 Contact portion 55 Upper connecting portion 58 Upper wedge member 60 Lower mounting portion 63 Opening portion 65 Lower connecting portion 66 Wedge temporary storage portion 68 Lower wedge member 71 Inserting wedge portion 72 Long Leg part 73 Upper retaining part 74 Lower retaining part 75 Wedge holding part

Claims (8)

A first wedge (11) having an upper wedge receiving member (15) having wedge receiving portions (16, 17) on both the left and right sides of the column and the first column and the wedge column on the left and right sides of the column. A rod-shaped member (30) is arranged in a diagonal direction between the upper wedge receiving member and the lower wedge receiving member of the second column (21) to which the lower wedge receiving member (25) having the portions (26, 27) is fixed. A structure to be constructed,
The rod-shaped member includes a rod-shaped main body (40), an upper mounting portion (50) formed on the upper side of the rod-shaped main body, and a lower mounting portion (60) formed on the lower side of the rod-shaped main body. And
The upper mounting portion includes a contact portion (51) with respect to the side surface of the first support column, and an upper connection portion (55) with the rod-shaped main body formed on the left or right side of the support column of the contact portion. An upper wedge member (58) formed on the other side of the abutment portion on the opposite side to the left and right sides of the support and inserted into the wedge receiving portion on either side of the upper wedge receiving member. And having
The lower mounting portion includes a lower connecting portion (65) with the rod-shaped main body and a lower wedge inserted into a wedge receiving portion on the other side opposite to the wedge receiving portion into which the upper wedge member is inserted. A bar-like member erection structure, comprising: a member (68).   The erected structure of the bar-shaped member according to claim 1, wherein the bar-shaped member is a handrail for a temporary staircase.   3. The bar-shaped member erection structure according to claim 1, wherein the upper wedge receiving member and the lower wedge receiving member have a wedge receiving portion in a cross shape.   The construction structure of the bar-shaped member according to any one of claims 1 to 3, wherein the contact portion of the upper mounting portion is formed in a semicircular shape corresponding to the side surface of the column.   5. The rod-shaped member installation structure according to claim 1, wherein the contact portion of the upper mounting portion is in contact with a side surface of the column on the rod-shaped member side. In the lower mounting portion, the lower connecting portion has an opening (63) formed in a horizontal direction for accommodating the wedge receiving portion of the lower wedge receiving member, and the lower wedge member is connected to the lower wedge portion. It is arranged in the side connection part so that it can move up and down,
When the lower mounting portion is attached to the lower wedge receiving member, the wedge portion of the lower wedge member is inserted into the wedge receiving portion after the wedge receiving portion of the lower wedge receiving member is accommodated in the opening. The rod-like member erection structure according to any one of claims 1 to 5.   The rod-shaped member according to claim 6, wherein the lower wedge member is provided with a long leg portion provided with an upper retaining portion at an upper portion of the lower wedge member and a lower retaining portion at a lower portion of the lower wedge member. Construction structure.   The rod-shaped member according to claim 6 or 7, wherein the lower wedge member includes a wedge holding portion that holds the insertion wedge portion at the lower connecting portion at a position where the insertion wedge portion is not inserted into the wedge receiving portion of the lower wedge receiving member. Construction structure.

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