JP3456907B2 - Scaffolding board auxiliary board mounting device for frame scaffolding - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scaffolding board auxiliary board mounting device for mounting an auxiliary board on a building frame, which assists a scaffolding board spanned between building frame laterals of a frame scaffolding to ensure work safety. Regarding

[0002]

2. Description of the Related Art In frame scaffolds, since there is inevitably a gap between the scaffolding board spanning the horizontal frames of the building frame and the building, an object may drop from the gap to the ground or There is a danger that he would step out and crash. The present invention, by blocking the gap between the scaffolding board and the building to prevent the fall of things and the like in advance, as necessary, as a skirting board to prevent the sliding down of things and the like from the scaffolding board It is an object of the present invention to provide a mounting device for an auxiliary board that can also be used.

[0003]

A scaffolding board auxiliary board mounting device for a frame scaffolding according to a first aspect of the present invention is an auxiliary board having substantially the same length as a scaffolding board 2 mounted on a building horizon H of a frame scaffolding W. 1 through a mounting metal fitting 5 having a locked portion 13 to which locking metal fittings 3 projecting from both ends of the auxiliary board 1 in the longitudinal direction are locked, and a gap between the scaffolding board 2 and the building K. It is possible to change the posture between the fall prevention posture in which the scaffolding plate 2 is held substantially flush with the scaffolding plate 2 and the baseboard posture in which the scaffolding plate 2 is raised from one end of the scaffolding plate 2 to the building frame building T. A device adapted to be attached , wherein a lock for the auxiliary board 1 is provided.
The tool 3 connects a pair of vertical rods 6 and 6 and both vertical rods 6 and 6.
It is formed in a U shape with the horizontal rod portion 7, and the mounting bracket 5 is
U-shape formed by the left-right frame part and the front frame part in a generally U-shape
It consists of the frame 9, and the rear end side is in each side frame part of the U-shaped frame 9.
And a bent portion 1 which is open at the upper end and has a substantially V shape in a side view.
The first cutout groove 11 is formed so that 1a faces forward,
A substantially V-shape in side view with an opening at the upper end on the front end side of each side frame
Second notch groove 12 is formed, and these both grooves 11 and 12 are formed.
Therefore, the locked portion 13 of the mounting bracket 5 is configured, and
Locked to the bent portion 11a of the first cutout groove 11 in the stopper portion 13.
One vertical rod portion 6 of the metal fitting 3 is engaged with the other vertical rod portion 6
By engaging with the lower end of the second cutout groove 12,
Auxiliary board 1 is held in a fall prevention posture, and a locking metal fitting
Attach both vertical rods 6 and 6 to the upper and lower ends of the first notch groove 11.
Holding the auxiliary board 1 in the skirting board posture by fitting
It is characterized by being adapted to .

According to a second aspect of the present invention, in the scaffolding board auxiliary board mounting device for the frame scaffolding according to the first aspect, between both end portions of the auxiliary board 1 in the longitudinal direction are opposite end portions of the adjacent auxiliary boards 1 and 1. The cover body 4 that closes the gap s is inverted and folded on the auxiliary board 1 so as to open the gap s and the closed position supported by the mounting bracket 5 at the position where the gap s is closed in the fall prevention posture. It is characterized in that it is pivotably attached to the open position so that it can be opened and closed.

[0005]

According to a third aspect of the present invention, in the scaffolding board auxiliary board attachment device for a frame scaffold according to the first or second aspect, the fitting 5 is fitted to and retained on the building frame terrain T of the frame scaffold W. A joint portion 17 and a fixing bolt 18 for fixing the mounting bracket 5 to the building frame building T in a state where the fitting portion 17 is externally fitted and held on the building frame building T. There is.

[0007]

1 (A) is a plan view showing an auxiliary board 1, FIG. 1 (B) is a front view thereof, FIG. 1 (C) is an end view thereof, and FIG. ) Is an enlarged plan view of a portion indicated by an arrow X, (B) is an enlarged front view of a portion indicated by an arrow Y in FIG. 1 (B), and FIG. 3 is a plan view showing a mounting state of the auxiliary board 1. Is. As can be seen from these figures, the auxiliary board 1 is composed of a main material 1a and end edge plates 1b, 1b attached to both longitudinal ends thereof,
The scaffolding plate 2 is attached to the building horizon H of the frame scaffolding W, and has substantially the same length as the scaffolding plate 2 and a width of, for example, about 1 / 2.5. At both ends of the auxiliary board 1, a half of the gap s formed between the auxiliary metal fitting 3 for attaching the auxiliary board and the opposing ends of the adjacent auxiliary boards 1 and 1 as shown in FIG. 3 is closed. A cover body 4 is attached to each.
As well known, both ends of each scaffolding plate 2 are hooked by hooks F, F to the building frame laterals H, H facing each other in the longitudinal direction.

The auxiliary board 1, as can be seen from FIG.
Fall prevention that is held substantially flush with the scaffolding plate 2 in the gap S between the scaffolding plate 2 and the building K via the mounting bracket 5 having the locked portion 13 to which the locking metal fitting 3 is locked. It is attached to the building frame building T so that the posture can be changed to a posture and a skirting posture that is held upright from one end of the scaffolding plate 2, and the fall prevention posture is in the right half of FIG. The posture of the auxiliary board 1 is shown, and the skirting board posture is the posture of the auxiliary board 1 shown in the left half of FIG.

As shown in FIGS. 2 (A) and 2 (B), each locking fitting 3 is a pair of vertical rods 6 and 6 made of an iron round bar.
And a horizontal rod portion 7 that connects the vertical rod portions 6 and 6 to each other, and is formed in a U-shape, and is fixed to the end surface of the main board 1a of the auxiliary board 1 toward the one end portion side. The cover body 4 is shown in FIG.
As shown in the right half of FIG. 1, a closed position supported by the mounting bracket 5 at a position that closes approximately half of the gap s between the opposing ends of the auxiliary boards 1 and 1 adjacent to each other in the fall prevention posture, and from this closed position The auxiliary board 1 is inverted to open the gap s.
Is hinged by a hinge 8 so as to be openable and closable between an open position in which it is folded to the front surface side.

As can be seen from FIGS. 7 and 8, the mounting bracket 5 for mounting the auxiliary board 1 on the building frame construction site T is a U-shaped frame which is formed in a generally U-shape in the left and right side frame portions and the front frame portion. 9
The U-shaped frame 9 is specifically composed of a large U-shaped frame portion 9a and a small U-shaped frame portion 9b connected to the front portion of the large U-shaped frame portion 9a.
Formed by and. Then, at the rear end of each side frame portion of the U-shaped frame 9, that is, at the rear end side of the side frame portion 10 of the large U-shaped frame portion 9a, the side view has a substantially V shape. A first notch groove 11 is formed such that the bent portion 11a faces forward, and the front end of each side frame portion of the U-shaped frame 9, that is, the side frame portion 14 of the small U-shaped frame portion 9b is opened at the upper end. The second notch groove 12 having a substantially V shape in a side view is formed, and the first notch groove 11 is formed.
The second cutout groove 12 and the second cutout groove 12 form the locked portion 13 of the mounting bracket 5.

Further, as can be seen from FIGS. 7 and 8, the large U-shaped frame portion 9a of the U-shaped frame 9 has a fitting portion 17 which is externally fitted and held on the building frame building T of the frame scaffold W. A fixing bolt 18 for fixing the mounting member 5 to the building frame building T in a state where the fitting portion 17 is externally fitted and held on the building frame building T is provided. The fitting portion 17 includes a bent holding bar 17a bent and extended in a three-dimensional direction on the upper side in the large U-shaped frame portion 9a, and a lower end portion of the front frame portion 15 of the large U-shaped frame portion 9a. The U-shaped frame portion 9a and the U-shaped portion piece 17b that is integrally provided in a protruding manner,
The fixing bolt 18 is screwed to the U-shaped portion 17b. The base end portion of the holding rod 17a is fixed to the front frame portion 15 of the large U-shaped frame portion 9a, and the front frame portion 15 of the large U-shaped frame portion 9a has a notched opening on the upper side. The upper end level of the small U-shaped frame portion 9b is slightly lower than the upper end level of the large U-shaped frame portion 9a.

A method of mounting the auxiliary board 1 by the scaffolding board auxiliary board mounting device configured as described above will be described with reference to FIGS.
This will be described below with reference to FIGS. 6, 9 and 10.

In using the auxiliary board 1, first, the mounting bracket 5 is attached to a required portion of the building frame construction site T of the frame scaffold W. In order to attach the mounting bracket 5 to the building frame building T, the bent retaining rod 17a and the U-shaped portion 17b of the fitting portion 17 are externally fitted to the building frame building T while tilting the mounting bracket 5 to the left, right, front and rear. Then, the mounting bracket 5 may be set to a predetermined height position and orientation, and then the fixing bolt 18 may be tightened.

When the auxiliary board 1 is used to prevent falling after the mounting bracket 5 is attached to a required portion of the building frame building T, as shown in FIG. 9, the auxiliary board 1 is indicated by a phantom line in FIG. From the raised state as shown in the figure, the locking metal fitting 3 of the auxiliary board 1 is inserted into the first cutout groove 11 forming the locked portion 13 of the mounting metal fitting 5, and one of the locking metal fittings 3 is inserted. Side (lower side) vertical rod portion 6 is engaged with bent portion 11a of first notch groove 11, and auxiliary board 1 is placed in the posture shown in the same figure with vertical rod portion 6 engaged with this bent portion 11a as the center. While rotating forward, the vertical rod portion 6 on the other side (upper side) of the locking metal fitting 3 is engaged with the lower end portion of the second cutout groove 12 which also constitutes the locked portion 13 to obtain the posture shown in FIG. , By this, auxiliary board 1
Is held in a fall prevention posture that closes the gap S between the scaffolding plate 2 and the building K. The state where the auxiliary board 1 is held in the fall prevention posture is shown in the right half of FIG. 3, the right half of FIG. 4 and the left half of FIG. 5 (shown in phantom), respectively. A person can walk on the auxiliary board 1 in the fall prevention posture.

In the fall prevention posture as described above, the cover body 4 folded to the open position is rotated 180 ° to the closed position, so that the gap s between the opposite ends of the adjacent auxiliary boards 1 and 1 is increased. About half of the state is blocked. The gap s is completely covered by both the auxiliary boards 1 and 1 adjacent to each other in the fall prevention postures and placing the cover bodies 4 and 4 in the closed position. Further, the cover body 4 is supported on the small U-shaped frame portion 9b of the mounting member 5 so as to be flush with the upper surface of the auxiliary board 1 at the closed position where the gap s is closed, and this state is shown in FIGS. It shows in FIG.

Next, when the auxiliary board 1 is used as a skirting board and when the fall prevention posture is changed to the skirting board posture, the cover body 4 is inverted from the closed position and folded to the open position. After that, the auxiliary board 1 is rotated from the posture shown in FIG. 9 (fall prevention posture) to the posture shown in FIG. 9 (also the posture shown by the phantom line in FIG. 10), and from this posture, the first cutout groove 11 When the vertical rod portion 6 of the locking metal fitting 3 engaged with the bent portion 11a is disengaged from the bent portion 11a, the entire auxiliary board 1 is further rotated to stand up as shown by the solid line in FIG. The upper and lower vertical rods 6 and 6 of the stopper 3 are second
The auxiliary board 1 is retained in a skirting board posture by engaging with the upper and lower ends of the notch groove 12, respectively, and is ready to be used as a skirting board suspended from one end of the scaffolding plate 2. Thus, the state in which the auxiliary board 1 is held in the skirting board posture is as shown in FIG.
0, the left half of FIG. 3, the left half of FIG. 4, and FIG.

When the above-mentioned skirting board posture is changed to the fall prevention posture again, it is advisable to rotate the auxiliary board 1 from the solid line state (fall prevention posture) of FIG. 10 to the postures of FIG. In this way, the posture of the auxiliary board 1 can be easily and easily changed from the fall prevention posture to the fall prevention posture and from the skirting posture to the fall prevention posture.

When the auxiliary board 1 is held in the fall prevention posture, both vertical rods 6 and 6 of each locking fitting 3 are
Bent portion 11a of the first cutout groove 11 that constitutes the locked portion 13
Since the auxiliary board 1 is engaged with the lower end of the second cutout groove 12, there is no risk that the locking metal fitting 3 will come out upward unless the auxiliary board 1 is rotated in a specific direction. It does not float up and leave.
Further, since the locking metal fitting 3 is formed in a U shape by the vertical rod portions 6, 6 and the horizontal rod portion 7, when the locking metal fitting 3 is hooked to the locked portion 13, The movement of the auxiliary board in the longitudinal direction of the auxiliary board is restricted by the rod portion 7, and there is no possibility that the locking fitting 3 will come out of the locked portion 13 and the auxiliary board 1 will come off the mounting fitting 5.

[0019]

According to the first aspect of the present invention, the locking metal fittings are provided with the auxiliary boards having substantially the same length as the scaffolding board attached to the horizontal frame of the building frame of the frame scaffolding, projecting at both ends in the longitudinal direction of the auxiliary board. It is designed to be attached to the building frame terrain so that the posture can be changed between the fall prevention posture and the skirting posture through the mounting metal having the locked portion where By attaching it, it is possible to prevent things from falling through the gap between the scaffolding board and the building to ensure work safety, and if the auxiliary board is installed in the skirting board position, it can be used as a skirting board. It is possible to prevent objects from sliding down. Further, according to the present invention, the fall prevention of the auxiliary board is prevented.
Change the posture from the stop posture to the skirting posture, or drop from the skirting posture.
You can easily and easily change the posture to the lower-prevention posture.
It Also, the auxiliary board is held in the fall prevention posture.
At this time, both vertical rods of the locking fitting form the
Engages with the bent portion of the V-shaped first cutout groove and the lower end of the second cutout groove
Therefore, there is no risk of the locking metal fittings coming out upwards,
Therefore, the auxiliary board floats up due to strong winds, etc.
Never. Also, the locking metal fittings are
Since it is formed in a letter shape, the locking metal fittings can be hooked on the locked part
The auxiliary board is in the longitudinal direction by the horizontal rod
Movement is restricted and the locking metal fittings slip out of the locked
The auxiliary board does not come off from the mounting bracket.

According to the second aspect of the present invention, the cover body for closing the gap between the opposite ends of the adjacent auxiliary boards is provided at both ends of the auxiliary board in the longitudinal direction, and the closed position for closing the gap and the gap are provided. Since it is pivotally attached so that it can be opened and closed between the open position where it is inverted to open and folded on the auxiliary board, the cover body must be set to the closed position when the auxiliary board is installed in the fall prevention posture. As a result, it is possible to prevent objects and the like from falling through the gap. Further, since the cover body is supported on the mounting member at the closed position, no special support member is required and the structure is simplified. Further, since the cover body is folded on the auxiliary board in the open position, it does not come to bear when the posture of the auxiliary board is changed.

[0021]

According to the third aspect of the present invention, the fitting is externally fitted and held to the building frame building of the frame scaffold, and the fitting portion is externally fitted and held to the building frame building. Since the fixing bolts for fixing the mounting bracket to the building frame building in this state are provided, the mounting bracket can be easily attached to and removed from the building frame building.

[Brief description of drawings]

1A is a plan view of an auxiliary board, FIG. 1B is a front view, and FIG. 1C is an end view.

2A is an enlarged view of a portion indicated by an arrow X in FIG. 1A, and FIG. 2B is an enlarged view of a portion indicated by an arrow Y in FIG. 1B.

FIG. 3 is an enlarged plan view showing a usage state of the auxiliary board.

FIG. 4 is a sectional view taken along line MM in FIG.

5 is a sectional view taken along line NN of FIG.

6 is a sectional view taken along line ZZ in FIG.

FIG. 7 is a perspective view showing a mounting member.

8A is a plan view of a mounting member, FIG. 8B is a side view, and FIG. 8C is a rear view.

FIG. 9 is an explanatory diagram showing a state in which the auxiliary board is attached in a fall prevention posture.

FIG. 10 is an explanatory view showing a state in which the auxiliary board is attached in a skirting board posture.

[Explanation of symbols]

W framework scaffolding H building frame horizontal land T building frame 1 auxiliary board 2 scaffolding boards 3 locking metal fittings 4 cover body 5 Mounting bracket 6 Vertical rod part of the locking metal fitting 7 Side bar of locking metal 9 U-shaped frame 9a Large U-shaped frame 9b Small U-shaped frame 11 First notch groove 12 Second notch groove 13 Locked part 17 Fitting part 17a Bending holding rod 17b U-shaped piece 18 Fixing bolt

Claims (3)

(57) [Claims] Claims: 1. An auxiliary board having substantially the same length as a scaffolding board attached to a horizontal frame of a building frame of a frame scaffold, and locking metal fittings protruding from both ends in the longitudinal direction of the auxiliary board are locked. A fall prevention posture that is held almost flush with the scaffolding board in the gap between the scaffolding board and the building through a mounting bracket that has a section, and a width that is held upright from one end of the scaffolding board scaffolding board auxiliary board mounting device for framework scaffold to attach the posture changeable in Kenwaku Kenchi the wood posture met
The auxiliary metal fittings of the auxiliary board are a pair of vertical rods and
It is formed in a U shape with the horizontal rod part that connects the rod parts,
The metal fittings are formed in a generally U shape with the left and right side frame parts and the front frame part.
The U-shaped frame has a rear end on each side frame part of the U-shaped frame.
Bent in the shape of a dogleg to the side, opening to the upper end
A first notch groove is formed so that the portion faces forward and each side frame is formed.
The second end, which is substantially V-shaped in side view, is open at the upper end on the front end side of the portion.
A notch groove is formed, and both of these grooves engage the mounting bracket.
A stop portion is formed, and the bending of the first notch groove in the locked portion is configured.
Engage one vertical rod of the locking metal with the curved portion and
By engaging the rod portion with the lower end portion of the second cutout groove,
The auxiliary board is held in the fall prevention posture, and the
By engaging both vertical rods with the upper and lower ends of the first cutout groove.
Therefore, the auxiliary board can be held in the skirting board posture.
Scaffolding board auxiliary board attachment device for frame scaffolding . 2. A cover body for closing a gap between opposing ends of adjacent auxiliary boards is supported at both ends in the longitudinal direction of the auxiliary board by the mounting metal fittings at positions where the gap is closed in a fall prevention posture. The scaffolding board auxiliary board mounting device for frame scaffolding according to claim 1, wherein the scaffolding board auxiliary board mounting device for frame scaffolding is pivotally mounted between a closed position and an open position where the space is inverted to open the gap and folded on the auxiliary board. . 3. The fitting includes a fitting portion fitted and held on the building frame building of the frame scaffold, and the fitting fitting with the fitting portion fitted and held on the building frame building. The scaffolding board auxiliary board mounting device for frame scaffolding according to claim 1 or 2, further comprising a fixing bolt for fixing to a building.