JP4754516B2 - Temporary scaffolding connection structure - Google Patents

Description

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

  Generally, when performing construction work, 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 multi-level scaffold is formed by forming a scaffold with a plurality of layers in the same manner, and 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, in the case of arranging a scaffolding material, a bracing or a leading bracing handrail using a coupling member for detachably coupling the scaffolding material to a holder of a column is known (for example, Patent Documents). 1). This leading brace handrail is fixed to the holder at the diagonal position of the support column by a connecting member that is a connecting structure for temporary scaffolding, and the bracing is laid diagonally. Uses a locking hook that is locked to the upper holder in a diagonal position and a locking bracket that is screwed and fixed to the lower holder. With such a connection structure for a temporary scaffold, attachment work can be easily performed.

However, because temporary scaffolding is loaded from all directions, not only in the vertical direction, but also in the horizontal direction, the locking hook may come off the upper holder, or the fixed state may loosen and the scaffolding may be bent There is a risk that.
JP 2006-169919 A

  The present invention has been made in view of the above points, and provides a connection structure for a temporary scaffold that can more safely, reliably and easily connect the scaffold material to the support column.

That is, the invention of claim 1 is a structure for removably connecting a scaffold material for a temporary scaffold to a wedge receiver of a support column, a main body member composed of two plate-shaped members, and a hole of the wedge receiver Along the guide member formed between the fixed wedge portion provided with the engaging portion and the two plate-like members constituting the main body member, which is integrally formed with the main body member so that it can be inserted and removed from above. A rod-shaped member that is provided so as to be able to advance and retreat in the lateral direction and is locked to the guide portion when linearly moved rearward is formed. part possess a locking member having a, with the time fixed engagement against the engagement portion of the fixed wedge to advance the locking member by implanting toward the projection of the locking member forwardly, unpinned Sometimes the protrusion of the lock member Headed implanted in accordance with the lock member in the temporary scaffolding connection structure is characterized in that so as to release the engagement is retracted from the engagement portion of the fixed wedge.

According to the connection structure for a temporary scaffold according to the first aspect of the present invention, there is provided a structure for removably connecting the scaffold material for the temporary scaffold to the wedge receiver of the support, which is a main body composed of two plate-like members. A member, a fixed wedge portion formed integrally with the main body member so as to be freely inserted and removed from above in the hole portion of the wedge receiver, and an interval between the two plate-like members constituting the main body member A slip-off prevention portion is formed that can be moved back and forth in the lateral direction along the guide portion formed in the guide portion, and is locked to the guide portion when the guide portion is linearly moved backward, and the front portion is configured in a wedge shape. It possesses a locking member provided with a protrusion for driving the rod-like member and the rear, with respect to the engagement portion of the time fixed to advance the locking member by implanting toward the projection of the locking member forwardly the fixed wedge with engaging Te, wherein at the time of unlocking Due to so as to disengage the protrusion of the click member and the locking member are implanted rearward retracted from engagement portion of the fixed wedge, very safe and the connection to the struts of the scaffold The locking member can be reliably engaged with the engaging portion of the fixed wedge portion, and the locking member can be engaged and engaged with the engaging portion. It is possible to easily perform the release .

The present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is a schematic front view showing a brace for temporary scaffolding using a connection structure for a temporary scaffold according to one embodiment of the present invention, and FIG. 2 is a diagram of the temporary scaffold connection structure of FIG. FIG. 3 is a schematic enlarged front view showing a state, FIG. 3 is a schematic enlarged front view showing a state in which the connection structure for a temporary scaffold in FIG. 2 is attached to a scaffolding column, and FIG. 4 is a connection structure for a temporary scaffold according to an embodiment of the present invention. It is a schematic front view of the connection structure for temporary scaffolds which shows another bracing for temporary scaffolds using a body.

  The temporary scaffolding connection structure 10 (10a, 10b) according to one embodiment of the present invention shown in FIGS. 1 to 3 removably connects the scaffolding material for temporary scaffolding to the wedge receiver 15 of the columns P1, P2. The body 10 is formed integrally with the main body member 20 so as to be freely inserted into and removed from above the main body member 20 composed of two plate-like members 21 and 22 and the hole 16 of the wedge receiver 15. It can be moved back and forth in the lateral direction along the fixed wedge part 30 provided with the joint part 35 and the guide parts 25, 26, 27 formed between the two plate-like members 21, 22 constituting the main body member 20. A lock member 40 is provided, which is engaged with the engaging portion 35 of the fixed wedge portion 30 when moving forward and is disengaged when moving backward.

  The main body member 20 includes two plate-like members 21 and 22, and a guide portion is formed between the two plate-like members 21 and 22 of the main body member 20. 2 and 3, a plate piece 27 is disposed at the lower end of the plate-like members 21 and 22 as a guide portion, and a plate piece 25 is disposed above the plate-like members 21 and 22. Thus, the guide portion 25 and the guide portion 27 are held so as to be sandwiched. At this time, the guide portion 25 and the guide portion 27 are provided so that a lock member 40 described later can move linearly in the front-rear direction (in the directions of arrows a and b in FIG. 3). Further, in the embodiment, the fixing pin 26 is also formed as a guide portion that can guide the lock member 40 and is formed so that a drop-off preventing portion 45 of the lock member 40 described later is engaged. It can be set as a simple structure.

  The fixed wedge portion 30 is configured to be freely inserted into and removed from the hole portion 16 of the wedge receiver 15 from above. The fixed wedge portion 30 is formed integrally with the main body member 20, and an engaging portion 35 is provided in a main body portion 31 inserted from above the hole portion 16. The engagement portion 35 is formed so that a lock member 40 described later can be engaged. In the embodiment shown in FIGS. 2 and 3, the recess portion 35 is provided as the engagement portion, and the distal end portion 42 of the lock member 40 is engaged. Combined. The shape of the engaging portion is not particularly limited, and may be a hole portion 35A through which the distal end portion 42 of the lock member 40 penetrates, or a not-shown groove portion or an engaging protrusion portion may be formed. Further, the fixed wedge portion 30 of the embodiment is formed integrally with the main body member 20 by fixing the lower portion 34 of the root portion 32 to the plate-like member 21 (22) by welding, and the root portion 32 of the fixed wedge portion 30 is formed. Is connected to the end 51a of the skewed material 51, which is a scaffolding material for a temporary scaffold, and the horizontal handrail material 52 through a connecting member 55 fixed by welding.

The lock member 40 is laterally moved along the guide portions 25, 26 and 27 formed between the two plate-like members 21 and 22 constituting the main body member 20 (in the direction of arrows a and b in FIG. 3). And is engaged with the engaging portion 35 of the fixed wedge portion 30 at the time of forward movement, and is disengaged at the time of backward movement .

  Further, as shown in the figure, the lock member 40 of the embodiment is provided with a drop-off preventing portion 45 that engages with the fixing pin 26 provided on the main body member 20, and the lock member 40 is moved backward (in the direction of arrow b). Workability and safety are improved without being detached from the main body member 20 when it is linearly moved. Further, as shown in FIGS. 2 and 3, the lock member 40 of this embodiment is configured such that a tip end portion 42 of a rod-like member 41 constituting the lock member 40 is formed in a wedge shape, and the fixed wedge portion 30 is engaged. The lock member 40 is more reliably engaged with the portion 35. In addition, in the embodiment, a protrusion 46 is formed below the rear portion 43 of the rod-like member 41 of the lock member 40, and the protrusion 46 is driven in the direction of arrow a or arrow b in FIG. 3 with a hammer or the like. Thus, the lock member 40 can be engaged or disengaged with respect to the fixed wedge portion 30 very easily. As will be described later, this protrusion may be a protrusion 46A formed on the upper side so as to facilitate the operation according to the position where the connection structure is attached (the connection structure for the temporary scaffold in FIG. 4). Body 10A).

  Next, a method of connecting the scaffold materials 51a and 52 to the support pillar P1 using the temporary scaffold connection structure 10 (10a) will be described with reference to FIGS. The connection structure 10 for the temporary scaffold before the connection is in a state in which the lock member 40 is retracted and the drop-off prevention part 45 is engaged with the guide part 26 of the main body member 20.

  First, as shown in FIG. 2, when the main body portion 31 of the fixed wedge portion 30 is inserted into the hole portion 16 from above the wedge receiver 15, the connection to the support P <b> 1 of the temporary scaffold connection structure 10 is started. Is done.

  Next, as understood from FIG. 3, the lock member 40 is advanced along the guide portions 25, 26, 27, and the protrusion 46 formed on the rear portion of the lock member 40 is moved in the direction of arrow a from the rear side. By hitting it with a hammer or the like, the distal end portion 42 of the lock member 40 is engaged with and fixed to the engagement portion 35 formed in the main body portion 31 of the fixed wedge portion 30. Thereby, the connection of the scaffold materials 51a, 52 to the support pillar P1 by the temporary scaffold connection structure 10 is completed.

  Further, when removing the temporary scaffold connection structure 10 from the support pillar P1, as shown in FIG. 3, the protrusion 46 of the lock member 40 is driven in the direction of arrow b with a hammer or the like, and the tip of the lock member 40 is The portion 42 is retracted from the engaging portion 35 of the fixed wedge portion 30 to release the fixation (see FIG. 2), and then the body portion 31 of the fixed wedge portion 30 is removed from the hole portion 16 of the wedge receiver 15 to Removal of the temporary scaffolding connection structure 10 from the column P1 is completed.

  As a use example of the connection structure 10 for a temporary scaffold described above, there is a brace 50 for a temporary scaffold as shown in FIG. The temporary scaffolding brace 50 includes two skew members 51, 51 disposed in an inclined manner between the scaffold columns P 1, P 2, and a horizontal handrail material 52 disposed on the skew members 51, 51. And an upper connection structure 10a and a lower side, which are provided at both ends 51a and 51b of the skew member 51 and are removably engaged with the wedge receivers 15 and 15 provided on the pillars P1 and P2. It is comprised from the connection structure 10b. In addition, the structure of the said upper connection structure 10a and the lower connection structure 10b is the same structure as the connection structure 10 for temporary scaffolds of the above-mentioned Example, In the figure, the same code | symbol shall represent the same structure as that Description is omitted. The same applies to the following embodiments.

  As understood from FIG. 1, in the upper connection structure 10 a, the end portions 51 a of the horizontal handrail material 52 and the skew material 51 are connected via a connection member 55 fixed to the root portion 32 of the fixed wedge portion 30. It is connected. Further, the lower end portion 51b of the skew member 51 is fixed to the root portion 32 of the fixed wedge portion 30 in the lower connection structure 10b. When connecting the brace 50 for temporary scaffolding to the columns P1 and P2, first, the upper connection structures 10a and 10a are connected to the wedge receivers 15 and 15 provided on the columns P1 and P2, and then the lower connection. The structures 10b and 10b are connected to the wedge receivers 15 and 15 of the columns P1 and P2. In addition, since the connection method with respect to the wedge receiver 15 of the upper side connection structure 10a and the lower side connection structure 10b is the same as that of the connection structure 10 for temporary scaffolds mentioned above, the description is abbreviate | omitted.

  Further, as shown in FIG. 4, a temporary scaffolding brace 50A, which is another example of use of the temporary scaffolding connection structure 10, is skewed between the scaffolding struts P1 and P2. , 51, a horizontal handrail material 52 disposed on the skew members 51, 51, and a wedge receiver 15 provided on both ends 51 a, 51 b of the skew material 51 and disposed on the columns P 1, P 2. 15, an upper connection structure 10 </ b> A and a lower connection structure 10 b that are removably engaged with the vehicle 15.

  In the upper connection structure 10 </ b> A of the temporary scaffolding brace 50 </ b> A, the upper end portion 51 a of the skew member 51 is fixed to the lower side of the main body member 20 with a connection member. Therefore, the protrusion 46A is formed on the upper side of the lock member 40A so that the hammering operation of the lock member 40A can be easily performed. In addition, the horizontal handrail material 52 is connected to the root portion 32 of the fixed wedge portion 30 of the upper connection structure 10A through the connection member 55 in the same manner as described above. Other constituent members are the same as those in the above-described embodiment, and the method for connecting the upper connection structure 10a and the lower connection structure 10b to the wedge receiver 15 in the brace 50A for temporary scaffold is the connection structure for the temporary scaffold described above. Since it is the same as that of the body 10, the description thereof is omitted.

  In this way, the scaffolding material such as the skew material, the horizontal handrail material, and the vertical material for connecting to the scaffolding column may be connected to the temporary scaffolding connection structure in any way, and work accordingly. From the viewpoint of performance and the like, a part of the structure of the connection structure can be appropriately changed and implemented without departing from the spirit of the invention. In addition, the connection structure for temporary scaffolds of this invention is not limited to the use example demonstrated here, but is comprised from one skewed material inclined between scaffold support | pillars as a scaffold material to connect. Scaffolding material or horizontal brace material that is not arranged may be used.

It is a schematic front view which shows the bracing for temporary scaffolds using the connection structure for temporary scaffolds which concerns on one Example of this invention. It is a general | schematic enlarged front view showing the state before attachment to the scaffold support | pillar of the connection structure for temporary scaffolds of FIG. It is a general | schematic enlarged front view showing the state by which the connection structure for temporary scaffolds of FIG. 2 was attached to the scaffolding column. It is a schematic front view of the connection structure for temporary scaffolds which shows another bracing for temporary scaffolds using the connection structure for temporary scaffolds which concerns on the Example of this invention.

10, 10a, 10b, 10A Temporary scaffolding connection structure 20 Main body member 21, 22 Plate member 25, 26, 27 Guide part 30 Fixed wedge part 35 Engagement part 40 Locking member 45 Fall-off prevention part 50, 50A For temporary scaffolding Bracing P1, P2 Strut 15 Wedge receiver

Claims (1)

A structure for removably connecting a scaffold for a temporary scaffold to a wedge receiver of a support,
A body member composed of two plate-like members;
A fixed wedge part formed integrally with the main body member so as to be freely inserted into and removed from the hole part of the wedge receiver, and provided with an engaging part;
A drop-off prevention portion that is provided so as to be capable of moving back and forth in a lateral direction along a guide portion formed between two plate-like members constituting the main body member, and that is locked to the guide portion when linearly moved rearward. There are formed, have a a lock member front part provided with a projection for driving the rod-like member and the rear configured in a wedge shape,
With at fixed engagement against the engagement portion of the fixed wedge to advance the locking member by implanting toward the projection of the locking member forwardly, at the time of unlocking towards the projection of the locking member rearwardly The connection structure for a temporary scaffold , wherein the lock member is retracted from the engagement portion of the fixed wedge portion to release the engagement .

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