JPH0453392Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention is suitable for use in temporary scaffolding used at construction sites, especially in the gaps provided between framed scaffolding and building structures. The present invention relates to an auxiliary scaffolding board bracket for supporting the auxiliary scaffolding board placed thereon.

(Prior Art) Conventionally, when constructing buildings, factories, and other architectural structures, temporary scaffolding is assembled around them.
Between the building structure and the temporary scaffolding, there is a space between the building structure and the temporary scaffold for carrying out prescribed work such as finishing work on the outer wall of the building structure, or for lifting and lowering various equipment and materials. A slight gap is provided for this purpose.

However, by providing such a gap, there is a risk that workers, materials, etc. may fall through the gap, which is dangerous, and there is a problem that a disaster may occur.

In order to solve this problem, various types of supporting hardware have been proposed in which auxiliary scaffolding boards are placed in the gaps. for example,
There are support metal fittings etc. described in Utility Model Publication No. 52-22096, Utility Model Publication No. 52-32104, and Utility Model Publication No. 54-10178.

In addition, as metal fittings for supporting the scaffolding board, there are scaffolding metal fittings as described in Japanese Utility Model Application Publication No. 137337/1983.

(Problem to be solved by the invention) However, with the above-mentioned supporting hardware and scaffolding hardware, the scaffold board is simply placed on support arm members that protrude in the horizontal direction. There was a risk that the board might come off, which was dangerous. In addition, the above-mentioned support hardware has a problem in that since the support arm member is fixed in a protruding manner, it becomes a nuisance when unnecessary and is inconvenient to handle. Furthermore, such as the aforementioned scaffolding hardware, which allows the supporting arm members to stand up when not needed, either does not have an upright maintenance structure to maintain the upright state, or even if there is, the upright maintenance structure is There were some difficulties that made the project complicated. In addition, when the scaffolding is erected, all of the scaffolding boards and the supporting arm members move simultaneously, opening up spaces other than those necessary for the work, making the work even more dangerous.

(Means for solving the problem) Therefore, the present invention solves the above-mentioned difficulties, reliably supports the auxiliary scaffolding board placed between the building structure and the temporary scaffolding, and also supports finishing work. , A bracket for auxiliary scaffolding boards with a relatively simple structure that can be easily raised to an upright position and reliably maintained in that upright position, in order to open only the minimum necessary space when auxiliary scaffolding boards are not needed, such as when loading materials. Specifically, in order to construct a predetermined building structure, it is a clamp body that is fixed to the scaffold support 1 as a construction site in a temporary scaffold that is assembled around it. 2, a substantially U-shaped support seat 3 fixed to the clamp body 2 so as to be positioned beside the building structure; a support arm 4 that is swingably supported on a support seat 3 via an axis pin 5 so as to be swingable between
A support body 8 is attached to the lower surface of the support arm 4 near the base and is formed so as to abut the side surface of the support column 1 located below the clamp body 2 to maintain the horizontal state of the support arm 4. .

The pivot hole 9 opened at the base of the support arm 4 to pass through the shaft pin 5 is formed into an ellipse shape that becomes longer along the longitudinal direction of the support arm 4, so that the support arm 4 when standing up is inserted into the pivot hole. 9, and the base of the support arm 4 is formed to abut against the bottom piece of the support seat 3. Then, on the left and right sides near the tip of the support arm 4, an engagement hook 6 with a pull-out prevention part 7 that is engaged with one of the engagement notches 13 of the auxiliary scaffolding board 11 to be mounted and supported is provided protrudingly. The end of the shaft pin 5 is formed into an engagement hook 6 with a detachment prevention part 7, and a means is adopted in which the engagement hook 6 can be engaged with the other engagement notch 13 of the auxiliary scaffolding board 11.

(Example) Hereinafter, the present invention will be explained based on illustrated examples.

Reference numeral 1 shown in the figure is a support made of pipe, and this support 1 is used for temporary scaffolding that is erected around a predetermined building, factory, or other architectural structure (not shown). It is used as a building site.

A clamp body 2 is fixed at a predetermined height position of this support 1. The clamp body 2 has a known structure, and is fixed to the support 1 by gripping it at a predetermined position and screwing it.

A support seat 3 having a substantially U-shape in plan is fixed to the clamp body 2 so as to be located on the side of the building structure.

The base of the support arm 4 is accommodated in the groove surrounded by both side pieces and the bottom piece of the support seat 3, and the base of the support arm 4 has a shaft pin 5 passing through both side pieces of the support seat 3. The tip of the support arm 4 is formed to be swingable between a horizontal state facing toward the building structure and a substantially upright state facing upward. Note that the support arm 4 is formed of a pipe of a predetermined diameter as shown in the figure, thereby reducing weight and
It will be made more robust.

On the left and right sides near the tip of the support arm 4, there are auxiliary scaffolding boards corresponding to the size of the gap that occurs between the building structure and the temporary scaffolding, that is, the gap between the outer surface of the building structure and the scaffolding board of the temporary scaffolding. An engaging hook 6 that engages and supports 11 is provided. Moreover, the tip of the engagement hook 6 is provided with a flange-shaped slip-off prevention plate in order to maintain a secure engagement state with the auxiliary scaffolding board 11 when the auxiliary scaffolding board 11 is engaged with the engagement hook 6. A portion 7 is formed, and the entire engaging hook 6 has a substantially round rivet shape.

Further, the end portion of the shaft pin 5 has the same structure as the engaging hook 6. That is, the engagement hook 6 is constructed by making the shaft pin 5 protrude outward from both sides of the support seat 3, and forming the slip-off prevention part 7 at the tip thereof. Furthermore, the penetrating portions on both sides of the support seat 3 are integrated with the support seat 3 by welding or the like.

A support body 8 is attached to the lower surface of the support arm 4 near the base, and this support body 8 is formed so that when the support arm 4 is in a horizontal state, it comes into contact with the side surface of the column 1 and maintains the horizontal state. ing. The illustrated support body 8 has a substantially groove-shaped cross section in which side plates having substantially triangular side surfaces that are high below the base of the support arm 4 and gradually lower as they reach the front part of the support arm 4 are integrated by a deep bottom plate. is formed. Then, the opening edges of both side plates are fixed to the lower side surfaces of the support arm 4, and the base of the inner bottom plate is cut out in an arc shape so as to come into contact with the structure on the circumferential surface of the support arm 4.

Incidentally, the base of the support arm 4 is cut diagonally to prevent the base from colliding with the bottom piece of the support seat 3 when the support arm 4 is swung to the upright state (second (see figure).

Furthermore, in order to pivotally support the support arm 4 on the support seat 3 via the shaft pin 5, the pivot hole 9 formed in the base of the support arm 4 has an oval shape that becomes longer along the longitudinal direction of the support arm 4. is formed. Then, the support arm 4, which has been swung to the upright state, slides downward through the pivot hole 9, and the base of the support arm 4 moves to the support seat 3.
It is formed so that it collides with the bottom piece of. That is,
When the support arm 4 that has slid downward through the pivot hole 9 attempts to swing to a horizontal state, the base of the support arm 4 collides with the bottom piece of the support seat 3 to prevent this swing, and the support arm 4 It is formed so that the upright state is reliably maintained (see Fig. 2).

A regulating plate 10 is attached to the tip of the support arm 4 to ensure reliable support of the auxiliary scaffolding plate 11 that is engaged with the engagement hook 6.

On the other hand, in order to engage the auxiliary scaffold board 11 with the engagement hook 6, as shown in FIG.
An engagement notch 13 corresponding to the engagement position with the engagement hook 6 is formed in each of the engagement notches 13.
This is done by engaging the engaging hook 6. The engagement notch 13 is formed corresponding to the engagement hook 6. For example, one engagement notch 13 that engages with the engagement hook 6 at the tip of the support arm 4 has a substantially inverted shape with an open bottom. The U groove is configured to communicate with the outside at the bottom,
In addition, the other engagement notch 13 that engages with the engagement hook 6 (axis pin 5) at the base of the support arm 4 has a substantially inverted U-groove that is open at the bottom and communicates with the outside on the side. It is designed to facilitate operation, prevent detachment due to rattling that occurs during engagement, and allow integral movement with the auxiliary scaffolding board 11 when the support arm 4 is in an upright state (see FIG. 3).

The auxiliary scaffolding board bracket of the present invention is constructed as described above. Next, an example of its use will be explained. First, it is attached using the clamp body 2 at a predetermined height position of the support 1 of a temporary scaffolding. , fixed.
Then, the auxiliary scaffolding board 11 may be engaged and supported by the engagement hook 6 of the support arm 4 which has been swung horizontally. Incidentally, when unnecessary, the support arm 4 can be held as appropriate by removing the auxiliary scaffolding board 11, or by standing up and swinging the supporting arm 4 together with the auxiliary scaffolding board 11 without removing it.

(Effect of the invention) Therefore, according to the bracket for the auxiliary scaffolding board of the present invention, the gap provided between the assembled temporary scaffold and the building structure to be constructed can be filled with the auxiliary scaffolding board 1.
1, it can be reliably closed, preventing workers, materials, and others from falling, and improving work safety.

Moreover, since the auxiliary scaffolding board 11 disposed in the gap is engaged and supported by the engaging hook 6 protruding from the support arm 4, the auxiliary scaffolding board 11 in the mounted state does not slide and is safe. . Further, the support body 8 attached to the lower surface of the support arm 4 to maintain the horizontal state by contacting the side surface of the support column 1 can reliably and stably support the load on the auxiliary scaffold board 11.

Furthermore, when using gaps to carry out scheduled work such as finishing the exterior walls of building structures, or to lift and lower various equipment and materials, it is necessary to All you have to do is remove the auxiliary scaffolding board 11, and there is no hassle. Moreover, this can be done by raising the support arm 4 while the auxiliary scaffolding board 11 remains engaged, and only the space necessary for the work is required.
In other parts, the gap between the building structure and the temporary scaffolding is closed, making it even safer.

In addition, when the auxiliary scaffolding board 11 is not removed or used, the supporting arm 4 is swingably supported on the supporting seat 3, so it can be left in an upright position and does not get in the way. It's very convenient.

In particular, the pivot hole 9 opened at the base of the support arm 4 to pass through the shaft pin 5 is made into an ellipse shape that becomes longer along the longitudinal direction of the support arm 4, so that the support arm 4 when standing up is formed in the pivot hole. Since the base of the support arm 4 is formed to abut against the bottom piece of the support seat 3, the support arm 4 can be slid downward through the pivot hole 9 while in an upright state. At the same time, when the support arm 4 that has slid downward tries to swing as much as possible to a horizontal state, the support arm 4
The base abuts against the bottom piece of the support seat 3 and this rocking is reliably prevented, and the upright state of the support arm 4 can be reliably maintained with a simple configuration. In other words, the support arm 4 is prevented from falling over unexpectedly, resulting in higher safety.

Further, on the left and right sides of the supporting arm 4 near the tip, an engaging hook 6 with a pull-out prevention part 7 that is engaged with one of the engaging notches 13 of the auxiliary scaffolding board 11 to be mounted and supported is protrudingly provided. The end of the shaft pin 5 is formed into an engagement hook 6 with a detachment prevention part 7, and the other engagement notch 13 of the auxiliary scaffolding board 11 is configured to engage with this engagement hook 6. The pivot structure and the arrangement of the engaging hook 6 can be further simplified.

As explained above, according to the present invention, it is possible to reliably support the auxiliary scaffolding board 11 placed between the building structure and the temporary scaffolding, and to provide the necessary minimum support when finishing work, loading materials, etc. is not necessary. In addition, the structure is simple, relatively robust, durable, easy to handle, and easy to use, which provides extremely excellent practical effects.

[Brief explanation of the drawing]

The drawings illustrate the present invention; Fig. 1 is a perspective view of the device in use, Fig. 2 is a partially cutaway side view of the device in use, and Fig. 3 shows the support arm in its swinging upright position. FIG. DESCRIPTION OF SYMBOLS 1... Support column, 2... Clamp body, 3... Support seat, 4... Support arm, 5... Axis pin, 6... Engagement hook, 7... Pull-out prevention part, 8... Support body, 9...
Pivot hole, 10...Regulation plate, 11...Auxiliary scaffolding board,
12... Engagement plate, 13... Engagement notch.

Claims (1)

[Scope of utility model registration request] In order to construct a predetermined building structure, a clamp body is fixed to the support of the scaffolding used as a construction site in a temporary scaffold that is assembled around the building structure, and a clamp body is fixed to the clamp body so as to be located beside the building structure. The support seat is approximately U-shaped in plan, and the support seat is attached to the support seat via an axis pin so that it can swing freely between a horizontal state where the tip faces toward the building structure and a substantially upright state where it faces upward. a support arm that is swingably supported by the support arm; and a support that is attached to the lower surface of the support arm near the base and that is formed to abut against the side surface of the support column located below the clamp body to maintain the horizontal state of the support arm. The pivot hole opened at the base of the support arm to pass through the shaft pin is shaped like an ellipse that becomes longer along the longitudinal direction of the support arm, so that the support arm when standing up can pass through the pivot hole. At the same time, the base of the support arm is formed to abut against the bottom piece of the support seat, and the left and right sides near the tip of the support arm are engaged with the engagement notch on one of the auxiliary scaffolding plates to be supported by the frame. At the same time, the end of the shaft pin is used as an engagement hook with a removal prevention part, and the other engagement notch of the auxiliary scaffolding plate is engaged with this engagement hook. A bracket for an auxiliary scaffolding board, characterized in that it is configured so that it can be used.