JP3513433B2 - Scaffold board auxiliary board mounting device for single pipe scaffold - 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 that attaches an auxiliary board to a scaffolding, which assists a scaffolding board spanned between lateral stays connected to columns of a single-pipe scaffolding to ensure work safety. Board mounting device.

[0002]

2. Description of the Related Art In a single-pipe scaffold, a space is inevitably formed between a scaffolding board spanned between horizontal stays and a building. 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 single-pipe scaffold according to the first aspect of the present invention is a scaffolding board 2 laid between horizontal stays H2 connected to a column H1 of a single-pipe scaffold W. Auxiliary board 1 of approximately the same length as
The scaffolding board 2 is attached via the mounting metal fittings 5 having the locked portions 13 to which the locking metal fittings 3 projectingly provided at both longitudinal ends thereof are locked.
The posture can be changed between a fall prevention posture in which the scaffolding board 2 is held substantially flush with the space S between the building and the building K, and a skirting board posture that is held upright from one end of the scaffolding board 2. The auxiliary board 1 is attached to the pillar H1.
The locking metal fitting 3 of is a pair of vertical rods 6 and 6 and both vertical rods 6 and 6.
Is formed in a U-shape with the horizontal rod portion 7 connecting them, and the mounting bracket 5 is composed of a U-shape frame 9 formed in a substantially U-shape by the left and right side frame portions and the front frame portion. shape on each side frame portion of which is recessed at its rear end, viewed from the side and opens to the upper end to the bent portion 11a and the front I Do and forward in shaped substantially L
The first cutout groove 11 is formed of, at the front end side of the side frame portions second cutout groove 12 of the side view V-shape opening at the upper end is formed, the mounting bracket 5 by these two grooves 11 and 12 The locked portion 13 of the locking metal fitting 3 is formed, and the bent portion 11a of the first cutout groove 11 of the locked portion 13 has one longitudinal rod portion 6 of the locking metal fitting 3.
And the other vertical rod portion 6 is engaged with the lower end portion of the second cutout groove 12, whereby the auxiliary board 1 is held in a horizontal fall prevention posture, and the locking metal fitting 3 is also provided. Both vertical rods 6,
It is characterized in that the auxiliary board 1 is held in the skirting board posture by engaging the 6 with the upper and lower end portions of the first notch groove 11.

According to a second aspect of the present invention, in the scaffolding board auxiliary board mounting device for a single-pipe scaffolding according to the first aspect, at both ends in the longitudinal direction of the auxiliary board 1, between the opposite end parts of the adjacent auxiliary boards 1 and 1. The cover body 4 for closing the gap s is inverted 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 pivotally attached so as to be openable and closable between it and an open position where it is folded.

[0005]

[0006] Claim 3 is the scaffolding board auxiliary board mounting device for single pipe scaffold of claim 2, the flange member 1 to the support H1 of monotube scaffold W mounting bracket 5 is attached
7 is fixed, and a horizontal opening 18 into which the flange member 17 is fitted in the U-shaped frame 9 of the mounting bracket 5.
A connecting portion 19 having a
The flange member 17 and the flange member 1
7 and the engaging hole 2 provided in the connecting portion 19, respectively.
It is characterized in that the fitting 5 is attached and fixed to the column H1 by inserting the wedge 22 over 0 and 21.

[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, and (B) is an enlarged front view of a portion indicated by an arrow Y in FIG. In addition, FIG. 3 shows the auxiliary board 1
4 is a plan view showing a mounting state of FIG. 4, and FIG. 4 is a sectional view taken along line ZZ of FIG. As you can see from these figures, auxiliary board 1
Is composed of a main material 1a and end edge plates 1b, 1b attached to both ends in the longitudinal direction of the main material 1a. The scaffolding plate 2 has a length substantially the same as that of 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 a gap s formed between the auxiliary metal fitting 3 for attaching the auxiliary board and the opposing end portions of the adjacent auxiliary boards 1 and 1 as shown in FIG. 3 is closed. A cover body 4 is attached to each. still,
As is well known, both ends of each scaffolding plate 2 are hooked to the lateral stays H2, H2 facing each other in the longitudinal direction of the scaffolding plate 2 with hooks F, F.

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 metal fitting 5 having the locked portion 13 to which the locking metal fitting 3 is locked. The posture of the auxiliary board 1 is attached to the support H1 so that the posture can be changed between the posture and the posture of the skirting board held upright from one end of the scaffolding plate 2. The fall prevention posture of the auxiliary board 1 is shown in the left side of FIG. The posture is shown in half, and is the horizontal posture shown by the solid line in FIG.
The skirting board posture is the posture shown in the right half of FIG.
It is a vertical rising posture shown by a virtual line.

Each locking fitting 3 is shown in FIGS. 2 (A) and 2 (B).
As shown in, a pair of vertical rods 6 and 6 are formed by 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. Further, the cover body 4 has a closed position in which it is supported by the mounting member 5 at a position where it closes approximately half of the gap s between the opposite ends of the adjacent auxiliary boards 1 and 1 in the fall prevention posture, and from this closed position. It is pivotally attached by a hinge 8 so as to be openable and closable between an open position in which the space s is reversed so as to be opened and the auxiliary board 1 is folded on the front surface side.

As can be seen from FIGS. 5 and 6, the mounting member 5 for mounting the auxiliary board 1 on the column H1 of the single-pipe scaffold W has a U-shape formed by the left and right side frame parts and the front frame part. The U-shaped frame 9 is formed 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. The rear end of each side frame portion of the U-shaped frame 9, that is, the side frame portion 10 of the large U-shaped frame portion 9a.
On the rear end side, the first cutout groove 11 is opened at the upper end and has a substantially V-shaped side view and the bent portion 11a faces forward.
Is formed, and a second notch groove 12 having a substantially V shape in a side view is formed at 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. The first cutout groove 11 and the second cutout groove 12 form the locked portion 13 of the mounting bracket 5.

Further, the large U-shaped frame portion 9a of the U-shaped frame 9 has a flange member 1 fixed to the support H1 of the single-pipe scaffold W.
A connecting portion 19 having a horizontal opening 18 into which 7 is fitted is attached. The connecting portion 19 is fitted over the flange member 17 of the column H1 and provided on the flange member 17 and the connecting portion 19, respectively. Engagement holes 20, 21
By inserting the wedge 22 across the mounting bracket 5, the mounting bracket 5 is mounted and fixed to the column H1.

The connecting portion 19 is formed by pressing a metal plate through the fixing tubular body 23 fixed to the front frame portion 15 of the large U-shaped frame portion 9a, and is fixed to the mounting tubular body 23. The connecting portion main body 24 is formed with the horizontal opening 18 and the engaging hole 21.
In addition, the flange member 17 is provided with horizontal stays H2, H on the column H1.
In order to connect 3 to each other, they are fixed to the columns H1 of the single-tube scaffold W at predetermined intervals in the longitudinal direction thereof, and the flange member 17 has an interval of 90 degrees in the circumferential direction, as shown in FIGS. Every four are provided.

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 FIG.

In using the auxiliary board 1, first, the mounting member 5 is attached to a predetermined position of the column H1 of the single-tube scaffold W. That is, to attach the mounting bracket 5 to the column H1,
As shown in FIG. 5, the connecting portion 19 provided on the mounting bracket 5
The connecting portion main body 24 is fitted over the required flange member 17 fixed to the column H1, and the flange member 17 is fitted in the horizontal opening portion 18 of the connecting portion main body 24.
In this state, the wedge 22 may be inserted across the engagement hole 21 of the connection body 24 and the engagement hole 20 of the flange member 17.

As shown in FIG. 3, on the flange member 17 to which the mounting bracket 5 is mounted, the end portion of the horizontal stay H2 is located at a position facing the mounting bracket 5 with the column H1 interposed therebetween, and the end portion of the horizontal stay H2 is connected to the connecting portion 29. The horizontal stays H3 and H3, which are connected in the same manner as above via the horizontal stays H2 and are arranged in the direction orthogonal to the horizontal stays H2, are connected via the connecting portions 29 to the positions facing each other with the column H1 in between. .

When the mounting board 5 is fixed to the flange member 17 of the column H1 as described above and then the auxiliary board 1 is used for preventing falling, the auxiliary board 1 is used as shown in FIG. From the state in which it is raised as shown by the phantom line, the locking metal fitting 3 of the auxiliary board 1 is attached to the mounting metal fitting 5
Inserted in the first cutout groove 11 that constitutes the locked portion 13 of
The vertical rod 6 on one side (lower side) of the locking metal fitting 3 is attached to the first cutout groove 1
1 is engaged with the bent portion 11a, and the auxiliary board 1 is rotated forward about the vertical rod 6 engaged with the bent portion 11a in the posture shown in FIG. ) The vertical rod portion 6) is engaged with the lower end portion of the second notch groove 12 which also constitutes the locked portion 13 to have a horizontal posture as shown in the figure, whereby the auxiliary board 1 is fixed to the scaffolding plate 2 Is held in a fall prevention posture that closes the gap S between the building and the building K. A state in which the auxiliary board 1 is held in the fall prevention posture is shown in the left half of FIG. 3 and is shown by a solid line in FIG. 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, whereby the gap s between the opposing end portions 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 FIG.

Next, when the auxiliary board 1 is used as a skirting board, when the fall prevention posture is changed to the skirting board posture, the cover body 4 is reversed from the closed position to the open position. After being folded in, the auxiliary board 1 is rotated from the posture shown in FIG. 7 (fall prevention posture) to the posture shown in FIG. 7 (which is also the posture shown by the phantom line in FIG. 8).
Locking fitting 3 engaged with the bent portion 11a of the cutout groove 11
When the auxiliary rod 1 is further rotated so as to stand up as shown by the solid line in FIG. 8 while the vertical rod 6 is detached from the bent portion 11a, the upper and lower vertical rods 6 and 6 of the locking fitting 3 are separated.
The upper and lower ends of the first cutout groove 11 are engaged with each other, whereby the auxiliary board 1 is held in a skirting board posture, and is ready to be used as a skirting board hung on one end of the scaffolding plate 2. . In this way, the state where the auxiliary board 1 is held in the skirting board posture is
In addition to FIG. 8, it is shown in the right half of FIG.

When the posture of the skirting board is changed to the fall prevention posture again, the lower vertical rod portion 6 of the locking metal fitting 3 is provided with the first notch from the auxiliary board 1 in the state shown by the solid line in FIG. Groove 1
After slightly pulling up so as to engage with the bent portion 11a of 1,
It is advisable to rotate the auxiliary board 1 to the postures shown in FIG. In this way, the posture of the auxiliary board 1 can be easily and easily changed from the skirting board posture to the fall prevention posture and from the skirting board posture to the fall prevention posture.

When the auxiliary board 1 is held in the fall prevention posture, the vertical rods 6 and 6 of the locking fittings 3 are
As shown in FIG. 7, the first cutout groove 1 forming the locked portion 13
Since it is engaged with the bent portion 11a of 1 and the lower end portion of the second cutout groove 12, unless the auxiliary board 1 is rotated in a specific direction, there is no risk of the locking metal fitting 3 coming out upward, and therefore strong wind or the like. As a result, the auxiliary board 1 does not float up and come off. Further, since the locking metal fitting 3 is formed in a U shape by the both vertical rod portions 6, 6 and the horizontal rod portion 7, the locking metal fitting 3
When the hook is locked to the locked portion 13, the horizontal rod portion 7 restricts the movement in the longitudinal direction of the auxiliary board, and
There is no risk that the auxiliary board 1 will come out of the locked portion 13 and the auxiliary board 1 will come off the mounting bracket 5.

[0021]

According to the invention of claim 1, an auxiliary board having substantially the same length as the scaffolding board spanned between the horizontal stays connected to the support of the single-pipe scaffolding is provided at both ends in the longitudinal direction of the auxiliary board. Through the mounting metal fittings having the locked parts to which the respective locking metal fittings that are projecting are mounted, it is possible to mount the pillars so that their postures can be changed between the fall prevention posture and the baseboard posture.
By installing the auxiliary board in a horizontal fall prevention posture, it is possible to prevent the fall of things etc. from the gap between the scaffold board and the building to ensure work safety, and if the auxiliary board is attached in the skirting board posture, It can be used as a skirting board and can prevent slipping of objects etc. from the scaffolding board. Further, according to the present invention, it is possible to easily and easily change the posture of the auxiliary board from the fall prevention posture to the skirting posture and from the skirting posture to the fall prevention posture. Further, when the auxiliary board is held in the fall prevention posture, both vertical rods of the locking fitting are recessed in front of the substantially V-shaped first notch groove forming the locked portion. since that Kakarihama to the lower end of the bent portion and the second cutout groove, there is no possibility that the locking fitting issues only disconnect upward, thus never disengaged lifted auxiliary board by strong wind or the like. Also,
Since the locking metal fitting is formed in a U-shape with both vertical rods and horizontal rails, the horizontal rail moves the auxiliary board in the longitudinal direction when the locking metal is hooked on the locked portion. Is restricted,
The locking bracket does not come out of the locked part and 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 in the longitudinal direction of the auxiliary board, 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.

[0023]

According to the third aspect of the present invention, the flange member is fixed to the column of the single pipe scaffold, and the mounting member has a horizontal opening in which the flange member is fitted in the U-shaped frame. A connecting part is provided, and this connecting part is fitted over the flange member, and a wedge is inserted over the engaging holes provided in the flange member and the connecting part, respectively, so that the mounting bracket is attached to the column. Since it is fixed, it is possible to easily and easily perform the work of attaching and detaching the attachment fittings to and from the columns that form the single-pipe scaffold.

[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 ZZ in FIG.

FIG. 5 is a perspective view showing a mounting member and a connecting portion provided on the mounting member.

FIG. 6A is a plan view of a mounting member, FIG. 6B is a front view, and FIG. 6C is a side view.

FIG. 7 is an explanatory diagram showing a state in which the auxiliary board is attached to the attachment fitting in a fall prevention posture.

FIG. 8 is an explanatory view showing a state in which the auxiliary board is attached to the attachment fitting in a skirting board posture.

[Explanation of symbols]

W single pipe scaffold H1 prop H2, H3 horizontal stay 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 11a Bent portion of the first cutout groove 11 12 Second notch groove 13 Locked part 17 Strut flange members 18 Horizontal opening of connection 19 Connection 20 Engagement hole on the flange member side 21 Engagement hole on the connection side 22 Wedge

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) E04G 1/26 E04G 21/32 E04G 7/22 E04G 7/28

Claims (3)

(57) [Claims] 1. An auxiliary board having a length substantially the same as that of a scaffolding board spanned between horizontal stays connected to a pillar of a single-pipe scaffold, and locking metal fittings provided at both ends in the longitudinal direction of the auxiliary board, respectively. Standing up from one side end of the scaffold plate with a fall-prevention posture in which the scaffold plate and the building are held in a substantially flush state with the scaffold plate through a fitting having a locked part to be locked. It is attached to the strut so that the posture can be changed to a skirting board posture that is held in a closed state, and the locking bracket of the auxiliary board is composed of a pair of vertical rods and a horizontal rod that connects both vertical rods. It is formed in a U shape, and the mounting bracket consists of a U shape frame formed in a substantially U shape with the left and right side frame parts and the front frame part, and the rear end side is formed on each side frame part of the U shape frame. a, a side view and opens to the upper end to and forward I Do and forward its bent portion is shaped substantially L
A first cutout groove having a recessed shape is formed, and a second cutout groove having a substantially V shape in a side view, which opens to the upper end, is formed on the front end side of each side frame portion. A locking portion is configured, one vertical rod portion of the locking metal fitting is engaged with the bent portion of the first cutout groove in the locked portion, and the other vertical rod portion is engaged with the lower end portion of the second cutout groove. The auxiliary board is held in a horizontal fall prevention posture by fitting, and the auxiliary board is held in a skirting posture by engaging both vertical rods of the locking metal fittings with the upper and lower ends of the first cutout groove. Scaffolding board auxiliary board mounting device for single pipe 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 for a single-pipe scaffolding according to claim 1, wherein the scaffolding board auxiliary board is pivotally mounted so as to be openable and closable between a closed position and an open position which is inverted so as to open the gap and is folded on the auxiliary board. apparatus. 3. A flange member is fixed to a column of a single pipe scaffold to which the mounting member is mounted, and the mounting member has a connecting portion having a horizontal opening for fitting the flange member in its U-shaped frame. The fitting is fixedly mounted on the column by fitting the connecting portion over the flange member and inserting the wedge over the engaging holes provided in the flange member and the connecting portion. The scaffolding board auxiliary board mounting device for a single-pipe scaffolding according to claim 2.