JP5270147B2 - Temporary scaffolding connection structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a temporary scaffolding connection structure which can extremely easily and correctly connect a scaffolding member to a support in the horizontal direction. <P>SOLUTION: The temporary scaffolding connection structure is formed of: a flange horizontally mounted on the support and having a through-hole; a connection portion formed on an edge of the scaffolding member; and a wedge member for detachably connecting the flange and the connection portion. The connection portion has a wedge member insertion portion which allows the insertion of the wedge member in a manner of being vertically movable and movable in a support direction so as to be reciprocative, and has a flange insertion opening formed at a front surface facing the support into which the through-hole formed at the flange is insertable. The scaffolding member has a hook formed thereon. Then the wedge member has a lower opening into which a front peripheral portion of the through-hole of the flange is insertable, and has an operating lug formed on an upper side of the lower opening. Further the wedge member has a short leg formed on one side of the lower opening, close to the support, and a long leg formed on the other side of the lower opening, close to the scaffolding member. <P>COPYRIGHT: (C)2009,JPO&amp;INPIT

Description

  The present invention relates to a connection structure for a temporary scaffold.

  Generally, when performing construction of buildings, etc., temporary scaffolds are installed on the outer periphery, and a plurality of support columns are arranged at predetermined intervals, and scaffolding plates are installed between the support columns. A one-level scaffold is formed, and a plurality of levels of scaffolds are formed by sequentially adding support pillars upward and erection of a scaffold plate. In such a temporary scaffold, as a safety measure when the scaffold is added upward, a scaffolding material such as an oblique material, a horizontal material or a vertical material is used as a handrail before the scaffolding plate is installed. Configured to be arranged.

  As described above, when placing a scaffolding material, a bracing or a leading bracing handrail using a connecting member for detachably coupling the scaffolding to a support of a support is known. As a connecting structure of the scaffolding material, there has been proposed a coupling structure by a locking hook that can be freely inserted into and removed from the hole of the flange fixed to the support column at the end of the horizontal material (see, for example, Patent Document 1). ). That is, the locking hook has an insertion claw for inserting into the hole of the flange, and a notch that is fitted to the periphery of the flange. When the horizontal member is coupled to the support column, the horizontal member is inclined. In this case, after inserting the insertion claw into the hole of the flange, the horizontal member is returned to the horizontal position and the notch portion of the locking hook is fitted to the outer peripheral portion of the flange to be coupled.

However, such a connecting structure is very complicated because it is necessary to adjust the angle of the scaffolding material itself and to insert and remove the insertion claw into the hole of the flange in the coupling or detaching operation. In addition, since scaffolds are loaded from all directions, there is a dislike that rattling tends to occur.
JP 2002-317552 A

  The present invention has been made in view of the above-described points, and provides a connection structure for a temporary scaffold that can extremely easily and reliably connect a scaffold material in a horizontal direction to a support.

That is, the invention of claim 1 is a temporary scaffold structure (K) in which a scaffold (20) is installed in a horizontal direction with respect to a support (11) erected in a vertical direction. A flange portion (30) having an attached through hole portion (35), a connection portion (40) formed at an end portion of the scaffold material, and a wedge member removably coupled to the flange portion and the connection portion ( 50), and the connection portion (40) has a wedge material insertion portion (42) that allows the wedge member to be moved up and down and to move back and forth in the direction of the column, and to the front side portion (43) on the column side. Has a flange insertion opening (44) into which the through hole portion of the flange portion can be inserted, and a hooking portion (46) is formed on the scaffold material side, and the wedge member (50) Insert the front perimeter (36) of the through hole in the flange. The lower opening (51) has an operation knob (59) formed on the upper side (52) of the lower opening, and the through hole of the flange is formed on the support column side of the lower opening. A short leg portion (53) having a plug insertion portion (54) and an engaging projection (56) having a downward opening (61) at a position below the lower end of the short leg portion are formed on the scaffolding material side, and the hook is formed. It has a long leg part (55) to which the above-mentioned engaging projection part can be engaged via the downward opening part, and relates to the connection structure of the temporary scaffold characterized by the above-mentioned.

  The invention according to claim 2 relates to the connection structure of the temporary scaffold according to claim 1, wherein the flange portion has four through-hole portions at intervals of 90 degrees around the support column.

  The invention according to claim 3 relates to the connection structure of the temporary scaffold according to claim 1 or 2, wherein the through hole portion is formed by a notch of the flange portion and an outer periphery of the support column.

  The invention according to claim 4 is the connection of the temporary scaffold according to any one of claims 1 to 3, wherein the long leg portion of the wedge member has a lower retaining projection that prevents the wedge member insertion portion from coming off upward. Concerning structure.

  According to a fifth aspect of the present invention, there is provided the temporary scaffold according to any one of the first to fourth aspects, wherein the operating knob portion of the wedge member has an upper retaining protrusion that prevents the wedge member insertion portion from coming out downward. Related to the connection structure.

The invention according to claim 6 relates to the connection structure of the temporary scaffold according to any one of claims 1 to 5 , wherein the connecting portion is formed by bending a single plate material.

According to the connection structure of the temporary scaffold according to the first aspect of the present invention, there is provided a temporary scaffold structure in which the scaffolding material is installed in the horizontal direction with respect to the vertical support column, and is attached in the horizontal direction of the support column. A flange portion having a through-hole portion, a connection portion formed at an end portion of the scaffold material, and a wedge member detachably coupled to the flange portion and the connection portion, and the connection portion includes the wedge member. It has a wedge material insertion part that is vertically movable and can be moved back and forth in the direction of the column, and has a flange insertion opening in which the through hole of the flange can be inserted in the front part on the column side, and a scaffold A hook portion is formed on the material side, and the wedge member has a lower opening into which the front peripheral portion of the through hole portion of the flange portion can be inserted, and an operation knob portion is formed on the upper side portion of the lower opening. And the lower opening A short leg portion having an insertion portion to the through hole portion of the flange portion is formed on the column side of the flange portion, and an engaging projection portion having a downward opening is formed on the scaffold material side at a position below the lower end of the short leg portion. Since the hook is provided with a long leg portion to which the engagement protrusion can be engaged via the downward opening, the support column and the scaffold can be connected very easily and easily, and the connection portion In contrast, the wedge member can be easily detached.

  According to the invention of claim 2, in claim 1, since the flange portion has four through-hole portions at intervals of 90 degrees around the support column, a plurality of scaffold members can be connected to the support column. it can.

  According to invention of Claim 3, in Claim 1 or 2, since the said through-hole part is formed of the notch of a flange part, and a support | pillar outer periphery, a through-hole part can be formed very easily.

  According to a fourth aspect of the invention, in any one of the first to third aspects, the long leg portion of the wedge member has a lower retaining protrusion that prevents the wedge member insertion portion from coming out upward. The member can be prevented from falling and is excellent in safety.

  According to the invention of claim 5, in any one of claims 1 to 4, the operation knob portion of the wedge member has an upper retaining protrusion that prevents the wedge member insertion portion from coming out downward. The wedge member can be prevented from falling, and is excellent in safety.

According to a sixth aspect of the invention, in any one of the first to fifth aspects, since the connecting portion is formed by bending a single plate material, the connecting portion is formed integrally. There is an advantage in the manufacturing process.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is a schematic perspective view showing a state before a connecting portion is inserted into a flange portion in a connection structure of a temporary scaffold according to an embodiment of the present invention, and FIG. 2 is a schematic view showing a state where the connecting portion in FIG. 1 is inserted into the flange portion. FIG. 3 is a schematic cross-sectional view showing a state in which the wedge member is engaged with the connecting portion of the embodiment and inserted into the flange portion, and FIG. 4 is a state in which the engagement between the wedge member and the connecting portion of FIG. 3 is released. FIG. 5 is a schematic cross-sectional view showing a state in which the connecting portion of FIG. 4 is connected to the support column, FIG. 6 is a plan view showing a connection structure of a temporary scaffolding according to another embodiment, and FIG. It is a schematic front view which shows the state by which the scaffolding material was constructed by the support | pillar by the connection structure of the temporary scaffold of an example.

  The connection structure of the temporary scaffold according to one embodiment of the present invention shown in FIG. 1 to FIG. 5 is a temporary scaffold structure K in which a scaffold member 20 is installed in a horizontal direction with respect to a support column 11 standing in a vertical direction. The flange portion 30 attached in the horizontal direction of the support column 11 and having a through-hole portion 35, the connection portion 40 formed at the end portion 21 of the scaffold 20, and the flange portion 30 and the connection portion 40 are removable. And has a wedge member 50 connected thereto. In FIG. 1 and FIG. 2, the wedge member is omitted for explanation.

  The flange portion 30 has a through-hole portion 35 that is horizontally fixed to the support 11 by welding or the like and into which a wedge member can be inserted. The shape of the flange portion 30 can be selected according to the application and the like, and as shown in FIG. 6 as a connection structure Ka of a temporary scaffold of another embodiment, four through-hole portions are provided around the support 11 at intervals of 90 degrees. A flange portion 30a having 35 may be used. In this case, a plurality of scaffolds can be connected to the support column 11 at a right angle. In FIG. 6, the same reference numerals as those in the embodiment described below represent the same configuration, and the description thereof is omitted. Further, in this embodiment, the through hole portion 35 is formed by the notch 32 of the flange portion 30 and the outer periphery 12 of the column as shown in FIG. Thereby, even if some dimensional errors occur in each member, such as the thickness of the connecting portion 40, for example, as shown in FIG. 5, when the wedge member 50 is inserted into the through-hole portion 35, the connecting portion 40 is securely connected. The front part 43 can be pressed against the support 11.

  As shown in FIG. 1 and FIG. 2, the connecting portion 40 has a wedge material insertion portion 42 for inserting the wedge member so as to move up and down and move forward and backward in the direction of the column. In the embodiment, as shown in the drawing, the connecting portion 40 is formed by bending a single plate material sideward from the front portion 43 to the sides to integrally form the side portions 45 and 45 and the flange portions 47 and 47. Further, the flange portions 47 and 47 and the end portion 21 of the scaffold member 20 facing the flange portions 47 and 47 are fixed to each other by welding, and a wedge material insertion portion 42 through which an upper portion and a lower portion are penetrated is provided. In this way, since the connection portion 40 is formed by bending a single plate material, for example, compared to a case where the connection portion 40 is formed by fixing separate plate materials by welding, for example, The time and effort due to can be greatly reduced.

Moreover, the connection part 40 is provided with the flange insertion opening part 44 which can insert the through-hole part 35 of the said flange part 30 in the front part 43 at the side of the support | pillar 11 side. As is well understood from FIGS. 1 and 2, the insertion opening 44 is brought into contact with the front portion 43 of the connection portion 40 when the through-hole portion 35 of the flange portion 30 is inserted. Thus, the horizontal length of the opening 44 is formed longer than the length from the support 11 to the through hole front peripheral portion 36 of the flange 30. On the other hand, a hooking portion 46 is formed on the rear wall portion 47 of the connecting portion 40 on the side of the scaffold member 20 by fixing a metal plate piece by welding or the like.

  As shown in FIGS. 3 to 5, the wedge member 50 has a lower opening 51 into which the through hole front peripheral portion 36 of the flange portion 30 can be inserted. In the embodiment, the wedge member 50 is better understood from FIG. As described above, the lower opening 51 is formed with an inclined surface on the front side (the column 11 side) so that the insertion portion 54 can be easily inserted into the through-hole portion 35. Further, an operation knob portion 59 is formed on the upper side portion 52 of the lower opening 51 so that the wedge member 50 can be easily operated to move up and down and move forward and backward. Note that an upper retaining projection 58 that prevents the wedge member insertion portion 42 from coming out downward may be formed in the operation knob portion 59 of the wedge member 50, as can be seen from FIGS. 3 and 5. A protrusion is formed in the lower part of the operation knob 59 to form an upper retaining protrusion 58.

Further, the wedge member 50 is provided with a short leg portion 53 having an insertion portion 54 to the through hole portion 35 of the flange portion 30 on the support 11 side of the lower opening 51, and the insertion portion 54 of the short leg portion 53. 6 is inserted into the through-hole portion 35, the front portion 43 of the connecting portion 40 is pressed against the support 11 as shown in FIG. On the other hand, on the scaffold member 20 side of the lower opening 51 of the wedge member 50, a long leg portion 55 formed with an engaging projection 56 that engages with the hook portion 46 at a position below the lower end of the short leg portion 53. Is provided. As a result, the wedge member 50 inserted in advance into the wedge material insertion portion 42 of the connection portion 40 is engaged with the engagement protrusion 56 on the hook portion 46 provided in the connection portion 40, so that the flange insertion opening is provided. When inserting the through-hole portion 35 into the portion 44, the lower end of the short leg portion 53 does not come into contact with the flange portion 30, so that it does not get in the way, and the through-hole portion 35 can be inserted into the flange insertion opening 44 very easily. it can.

On the other hand, when the engagement of the wedge member 50 to the connection portion 40 is released, the wedge member 50 is inserted in the wedge material insertion portion 42 so as to be movable up and down, and can be easily released. it can. The engaging projection 56 may have any shape as long as it can be engaged with the hooking portion 46. In the embodiment, the engaging protrusion 56 has a downward opening 61 so that it can be easily detached from the hooking portion 46. It is configured. In addition, the long leg portion 55 may be formed with a lower retaining projection 57 that prevents the wedge material insertion portion 42 from coming off upward. In the embodiment, a retaining pin is fixed to the lower portion of the long leg portion 55 to form the lower retaining projection 57.

  Next, in the above-described temporary scaffold connection structure K, as shown in FIG. 7, the scaffolding material 20 is installed in the horizontal direction between the support column 11 standing in the vertical direction and the support column 11 adjacent thereto. An example of the method will be described. A flange portion 30 is fixed to the support column 11 at a predetermined interval in the vertical direction, and a horizontal material is used as the scaffolding material 20. Although not shown in the drawings, a known scaffold material such as a skew material attached to a horizontal material can be used as the scaffold material. In addition, since the connection method to the support | pillar 11 in the both ends of the scaffold 20 is the same, the connection method of one side is demonstrated.

As shown in FIG. 3, the connection member 40 fixed to the end portion 21 of the scaffold member 20 has a wedge member 50 inserted in advance from above the wedge member insertion portion 42, and then a lower portion below the long leg portion 55. The retaining protrusion 57 is formed, and the engaging protrusion 56 of the wedge member 50 is engaged with the hooking part 46 formed on the connection part 40. Then, as shown in the figure, the through-hole portion 35 of the flange portion 30 fixed to the support column 11 is inserted into the flange insertion opening 44 of the connection portion 40, and the front surface portion 43 is brought into contact with the support column 11. At this time, since the wedge member 50 is engaged with the connecting portion 40 at a position where the lower end of the short leg portion 53 does not contact the flange portion 30, there is no need to hold the wedge member 50, which is extremely simple. The through hole 35 can be inserted into the flange insertion opening 44.

Next, in order to release the engagement of the wedge member 50 to the connection portion 40, the operation knob portion 59 is grasped and the wedge member 50 is moved upward (in the direction of arrow “a”). After releasing the engagement of the hook portion 46, the wedge member 50 is moved in the forward direction (arrow b direction) within the wedge material insertion portion 42, and the insertion portion 54 of the short leg portion 53 is inserted into the through hole portion as shown in FIG. Move to 35 where you can drop it. Subsequently, the operation knob portion 59 is driven from above to below (arrow d direction) using a hammer or the like, whereby the insertion portion 54 is securely inserted into the through-hole portion 35 as shown in FIG. The short leg portion 53 is fitted between the front peripheral portion 36 and the front portion 43 of the connection portion. As a result, the front portion 43 of the connecting portion 40 can be pressed against the support 11, and the scaffolding material 20 can be installed on the support 11 in an extremely simple and reliable manner in a state in which rattling is unlikely to occur.

  5 is removed from the column 11, the lower part of the long leg portion 55 of the wedge member 50 is driven upward (in the direction of arrow e) with a hammer or the like to move the insertion portion 54 upward. Thus, the pressure contact state of the front portion 43 of the connecting portion 40 to the support can be released, and the connection between the support 11 and the connecting portion 40 can be released very easily (see FIG. 4). In addition, the connection structure of the temporary scaffold of this invention is not limited only to the above-mentioned Example, A part of structure can be changed suitably and implemented in the range which does not deviate from the meaning of invention.

It is a schematic perspective view which shows the state before inserting the connection part in the connection structure of the temporary scaffold of one Example of this invention in a flange part. It is a schematic plan view which shows the state which inserted the connection part of FIG. 1 in the flange part. It is a schematic sectional drawing which shows the state which engaged the wedge member in the connection part of the Example, and was inserted in the flange part. It is a schematic sectional drawing which shows the state by which the wedge member and connection part of FIG. 3 were cancelled | released. It is a schematic sectional drawing which shows the state with which the connection part of FIG. 4 was connected with the support | pillar. It is a top view which shows the connection structure of the temporary scaffold which is another Example. It is a schematic front view which shows the state by which the scaffolding material was constructed by the support | pillar by the connection structure of the temporary scaffold of an Example.

K, Ka Temporary scaffolding connection structure 11 Supports 20 Scaffolding material 30 Flange part 35 Perforation part 36 Perforation part front peripheral part 40 Connection part 42 Wedge material insertion part 43 Front part 44 Flange insertion part 46 Hook part 50 Wedge member 51 Lower opening 53 Short leg 55 Long leg

Claims (6)

A temporary scaffold structure (K) in which a scaffold (20) is installed in a horizontal direction with respect to a vertical column (11), and a through-hole portion (35) attached in the horizontal direction of the column A connecting portion (40) formed at an end of the scaffold, and a wedge member (50) removably coupled to the connecting portion and the flange portion,
The connecting portion (40) has a wedge material insertion portion (42) for inserting the wedge member so as to move up and down and move forward and backward in the column direction, and the front portion (43) on the column side has the flange portion. While having a flange insertion opening (44) into which the through-hole portion can be inserted, a hooking portion (46) is formed on the scaffold material side,
The wedge member (50) has a lower opening (51) into which the through hole front peripheral part (36) of the flange part can be inserted, and an operation knob part (59) is provided on the upper side part (52) of the lower opening. ) Is formed, a short leg portion (53) having an insertion portion (54) into the through hole portion of the flange portion is provided on the column side of the lower opening, and a lower side of the short leg portion is provided on the scaffolding material side. An engaging protrusion (56) having a downward opening (61) is formed at a side position, and a long leg portion (55) to which the engaging protrusion can be engaged via the downward opening is formed on the hook portion. A temporary scaffold connection structure characterized by   The connection structure of the temporary scaffold of Claim 1 in which the said flange part has four through-hole parts at 90 degree intervals around a support | pillar.   The connection structure of the temporary scaffold of Claim 1 or 2 with which the said through-hole part is formed of the notch of a flange part, and the support | pillar outer periphery.   The connection structure of the temporary scaffold of any one of Claim 1 thru | or 3 which has a lower part prevention protrusion which prevents the upper part from the wedge material insertion part to the upper leg part of the said wedge member.   The connection structure of the temporary scaffold of any one of Claim 1 thru | or 4 which has an upper part prevention protrusion which prevents the downward pulling from the wedge material insertion part to the knob part for operation of the said wedge member.   The connection structure of the temporary scaffold of any one of Claim 1 thru | or 5 in which the said connection part is formed by bending one board | plate material.

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