JPH1181655A - Scaffolding board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a scaffolding board formed without welding. SOLUTION: This scaflolding board is constituted of a rectangular scaffolding board main body 1 and the butt end blocking members 5 of the scaffolding board main body 1. The scaffolding board main body 1 is provided with a tread section 2 and support sections 3 protruded downward from the tread section 2, and groove-like coupling sections 6 are provided on the upper face of the tread section 2 and the lower faces of the support sections 3. The blocking member 5 is provided with a cover section 5a facing the butt end 1a of the scaffolding board main body 1, protruded coupled sections 7 coupled with the groove-like coupling sections 6, and hook sections 8 coupled with the longitudinal faces of the support sections 3. The coupled sections 7 are coupled with the coupling sections 6 to regulate the longitudinal movement of the scaffolding board main body 1, and the hook sections 8 are hooked on the support sections 3 to regulate the movement of the scaffolding board main body 1 in the width direction perpendicular to the longitudinal direction. The hook section 8 is constituted of a plastic deformation section provided on the cover section 5a and fin hook sections protruded from the cover section 5a and folded and hooked on side wall support sections 3a provided at both end sections in the width direction perpendicular to the longitudinal direction of the tread section 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scaffold used for a passage or a work floor of a construction work.

[0002]

A wooden scaffold and a metal scaffold are used as scaffolds used for passages and work floors for construction work, and have a thickness h of 20 to 60 c as shown in FIG.
m, length L is 2 to 20 m, and scaffolding and girder material B as shown in FIG.
And tied it to a scaffold or a girder B with a track W or an elastic band. Since the metal scaffolding plate abuts the closing material on both edges of the scaffold plate body and attaches the closing material by welding, there is a problem that thermal distortion is generated by welding, and while the sealing material contacts the fore edge. Workability was also poor due to the need to perform extensive welding. In particular, when the scaffold plate body and the plugging material are formed of an aluminum alloy, 20,000 to 5
There is a problem that a large current capacity of about 10,000 A is required, and expansion and contraction are about three times as large as that of an iron scaffold plate, so that thermal strain is further likely to occur. Therefore, the present invention has been made in view of such problems of the related art, and an object of the present invention is to provide a scaffold plate configured without using welding.

[0003]

According to a first aspect of the present invention, there is provided a scaffold plate comprising a rectangular scaffold plate main body and a foreclosure material for the scaffold plate main body. The main body includes a tread portion, a support portion projecting downward from the tread portion, an engaging portion on an upper surface of the tread portion and a lower surface of the support portion, and a cover member facing the fore edge of the scaffold plate body,
An engaging portion engaged with the engaging portion, and a locking portion engaging with the longitudinal surface of the support portion, the engaged portion is engaged with the engaging portion and extends in the longitudinal direction of the scaffold plate body. The movement is restricted, and the locking portion is locked to the support portion to restrict the movement in the width direction orthogonal to the longitudinal direction of the scaffold plate body. A deformable portion is provided, and as a third aspect, at both ends in the width direction orthogonal to the longitudinal direction of the tread portion, a support portion also serving as a side wall is provided, and a closing member protruding from the cover portion is provided on the closing member, The fin locking portion is configured to be bent and locked to the side wall supporting portion. According to a fourth aspect, the engaging portion of the scaffold plate main body is a groove portion orthogonal to the longitudinal direction of the scaffold plate main body, and the closing member is engaged. The joint portion is a projection that engages with the groove.

[0004]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A scaffold according to the present invention will be described with reference to the drawings. The scaffold plate according to claim 1 includes a scaffold plate main body 1 having a rectangular shape, and a closing material 5 for closing a fore edge 1a of the scaffold plate main body 1, and the scaffold plate main body 1 includes a tread plate portion 2,
A plurality of support portions 3 projecting downward from the tread portion 2;
An engaging portion 6 is provided on the upper surface of the tread plate portion 2 and the lower surface of the support portion 3.
a, an engaged portion 7 that engages with the engaging portion 6, and a locking portion 8 that engages with the longitudinal surface of the support portion 3. By this, the movement of the closing material 5 in the longitudinal direction of the scaffold plate main body 1 is restricted, and by the locking of the locking portion 8 and the support portion 3,
The movement of the closing member 5 in the width direction orthogonal to the longitudinal direction of the scaffold plate main body 1 is restricted. The tread portion 2 of the scaffold plate body 1 is non-slip 2
a supporting portion 3a also serving as a side wall provided at both ends in the width direction orthogonal to the longitudinal direction of the tread plate portion 2;
A support portion 3 provided below the tread portion 2 between the side wall support portions 3a, 3a; and an installation portion 4 desirably parallel to the tread portion 2 is provided below the support portions 3, 3a, and the engaging portion 6 is a tread portion. 2 and on the lower surface of the support portion 3 and the installation portion 4. The covering member 5 includes a cover portion 5a, an upper surface portion 5b facing the upper surface of the tread plate portion 2, and a lower surface portion 5c facing the lower surface of the support portion 3, and has a U-shaped cross section, and upper and lower surface portions 5b, 5c. Engaging part 6
A cover portion 5a and a lower surface portion 5
The locking portion 8 is provided on at least one of c. In order to close the forehead 1a of the scaffold plate body 1 with the closing material 5, the scaffold plate body 1
Is provided with an engaging portion 6 orthogonal to the longitudinal direction of the tread plate portion 2, and the engaged portion 7 of the closing member 5 is aligned with the extension of the engaging portion 6, and the engaged portion 7 is moved along the engaging portion 6. The cover portion 5a closes the fore-edge 1a with the cover portion 5a, and the closing member 5 is provided with one or two locking portions 8 for locking on one of the longitudinal surfaces of the support portions 3 and 3a. That is, the closing member 5 restricts the movement of the scaffold plate main body 1 in the longitudinal direction by the engagement between the engaged portion 7 and the engaging portion 6, and the engagement between the locking portion 8 and the support portion 3 causes the scaffold plate main body to move. 1 restricts movement in the width direction orthogonal to the longitudinal direction.

In the scaffold plate according to the second aspect, the locking portion 8 of the closing member 5 is a plastic deformation portion 8a provided on the cover portion 5a,
After the plastically deformed portion 8a engages the engaged portion 7 of the closing material 5 with the engaging portion 6 of the scaffold plate body 1 as shown in FIG.
A tool such as a punch is applied to a part of the cover portion 5a from outside as shown in FIG. 1B, and the punch is provided by pressing the punch toward the inside of the scaffold plate main body 1, and as shown in FIG. It is necessary to provide the positioning so as to be locked on the directional surface. As shown in FIG. 1 (D), the plastic deforming portion 8a presses a part of the lower surface 5c of the closing member 5 toward the inside of the scaffold plate body 1 and forms the lower surface 5c to achieve the same purpose. I do. In the scaffold plate according to the third aspect, the locking portions 8 of the closing material 5 are fin locking portions 8b and 8c protruding from the cover portion 5a, and the fin locking portions 8b and 8c are supported on the side wall of the scaffold plate body 1. The fins 8b and 8c protrude from both sides of the cover 5a as shown in FIG. 2A, for example, and are closed by the covering material 5 as shown in FIG. 2B. After the engaging portion 7 is engaged with the engaging portion 6 of the scaffold plate body 1, the fin locking portions 8b and 8c are bent toward the side wall support portion 3a of the scaffold plate body 1 as shown in FIG. After locking one of the fin locking portions 8b in advance and engaging the closing material 5 with the scaffold plate main body 1, the other fin locking portion 8c is connected to the side wall support portion 3a of the scaffold plate main body 1. Bend and lock. The fin locking portions 8b, 8c
The same purpose is achieved by cutting and raising a part of the cover part 5a toward the inside of the scaffold plate body 1 and locking it to the longitudinal surface of the support part 3. In the scaffold plate according to claim 4, the engaging portion 6 of the scaffold plate main body 1 is a groove 6a orthogonal to the longitudinal direction of the scaffold plate main body 1, and the engaged portion 7 of the closing material 5 is engaged with the groove 6a. The groove 6a is provided on the upper surface of the tread plate portion 2 and provided on the lower surfaces of the support portion 3 and the installation portion 4.

In the scaffold plate shown in FIG. 3, a fin locking portion 8b is projected from one side of the closing material 5, and the engaged portion 7 of the closing material 5 is engaged with the engaging portion 6 of the scaffold plate main body 1. The fin locking portion 8b is bent and locked toward the side wall support portion 3a of the scaffold plate body 1,
A plastic deformation portion (8a) that is engaged with the support portion (3) is provided on the cover (5a). The fin locking portion 8b can be bent in advance. The scaffold plate of FIG. 4 is provided with a locking portion 8 for locking to the longitudinal surface of the support portion 3 on the lower surface 5c of the closing material 5, and the locking portion 8 is provided by cutting and raising the lower surface 5c. , Support part 3,
3 and may be provided between the support parts 3 and 3. In the scaffold plate of FIG. 5, the engaging portion 6 is an engaging protrusion 6b orthogonal to the longitudinal direction of the scaffold plate main body 1, and the engaged portion 7 is a protruding portion 7a engaging with the engaging protruding portion 6b. . In the scaffold plate of FIG. 6, the engaging portion 6 is an engaging protrusion 6b orthogonal to the longitudinal direction of the scaffold plate main body 1, and the engaged portion 7 is a grooved portion 7b engaging with the engaging protrusion 6b. The engagement projection 6b and the grooved portion 7
It is preferable to engage a dovetail groove with b. In the scaffold plate main body 1 of FIG. 7A, an installation portion 4 is provided below the support portion 3, and a downwardly opening groove 11 is provided in the installation portion 4 in parallel with the longitudinal direction.
The scaffold plate body 1 shown in FIG. 7 (B) has a hollow box shape formed by the tread plate portion 2, the installation portion 4, and the side wall support portion 3a, the support portion 3 is appropriately provided inside, and is extruded from light metal. A suitable anti-slip 2a is applied to the portion 2 to provide an engaging portion 6 orthogonal to the longitudinal direction of the tread portion 2, and for example, a non-slip material is attached to the groove 11 of the installation portion 4 or a fixing bolt is inserted. .

The closing member 5 is formed by extruding light metal from the light metal. The closing member 5 that protrudes the fin locking portions 8b and 8c on both sides of the cover 5a is lengthened by the projection of the fin locking portions 8b and 8c. Both ends of the upper and lower surfaces 5b, 5c are removed, and both ends of the uncovered cover 5a are fixed to the fin locking portions 8b, 8c.
c, and the closing member 5 that protrudes the fin locking portion 8b on one side of the cover portion 5a is lengthened by the fin locking portion 8b,
One end of the upper and lower surfaces 5b and 5c is removed, and the remaining end of the cover 5a is formed as a fin locking portion 8b. The fin locking portions 8b and 8c are provided on the upper surface 5b or the lower surface 5 of the closing material 5.
The same object can be achieved by providing the fin locking portions 8b and 8c on the cover portion 5a and the upper and lower surface portions 5b and 5c. The same object is achieved even if the protrusion dimensions of the upper surface portion 5b and the lower surface portion 5c are different, and the same applies even if the engagement positions of the engaging portion 6 and the engaged portion 7 are different between the upper surface portion 5b and the lower surface portion 5c. Achieve the objectives. Further, at least one of the fin locking portions 8b and 8c can be screwed to the support portion 3a. When the fin locking portion 8b is screwed, the fin locking portion 8c and the locking portion 8 may be omitted. It is possible. If the scaffold plate body 1 and the plugging material 5 are formed of an aluminum alloy, the allowable load is larger than that of the plywood scaffold plate, the strength does not decrease due to aging, there is no breakage or burning, and the corrosion resistance is high. Maintenance is easy and long-term use is possible. Moreover, the weight of the aluminum alloy scaffolding plate is approximately half as light as that of the plywood scaffolding plate or the iron scaffolding plate, so that the handling work at the time of carrying and erection becomes easy. Furthermore, since it can be recycled even if discarded, resources can be used effectively.

[0008]

Since the scaffold according to the present invention is as described above, the following effects can be obtained. In the scaffold plate according to claim 1, the engaging portion provided on the scaffold plate body is engaged with the engaged portion provided on the blocking material, and the locking portion of the blocking material is engaged with the support portion of the scaffold plate body. Since the closing member is stopped, the movement of the closing member in the longitudinal direction of the scaffold plate body is restricted by the engagement of the engaging portion and the engaged portion, and the closing member is moved in the width direction orthogonal to the longitudinal direction by the engagement of the supporting portion and the locking portion. Is regulated. That is, since the plugging material can be attached to the scaffold plate body without welding, workability is good, and thermal distortion due to welding does not occur. In the scaffold plate according to the second aspect, since the locking portion is a plastic deformation portion provided with a cover portion of a closing material, the plastic deformation portion can be processed following the engagement between the engaging portion and the engaged portion. . That is, the locking portion of the plastically deformed portion can be formed without reversing the front and back of the scaffold plate or the front and back, so that the workability is good. The scaffold plate according to claim 3, wherein the locking portion is a bent fin locking portion projecting from the cover portion, and the fin locking portions are provided at both ends in the width direction orthogonal to the longitudinal direction of the tread plate portion. Since it is locked to the side wall, positioning is not required unlike the plastically deformed portion, and the workability is further improved. In the scaffold plate according to claim 4, since the engaging portion of the scaffold plate body is a groove orthogonal to the longitudinal direction, when an extruded shape is used for the scaffold plate body,
The formation of the groove is easy. Moreover, since the engaged portion of the closing member is a projection that engages with the groove, the engagement step of the closing member is smaller than when the closing member is engaged with the engaging portion of the projection,
Hard to trip.

[Brief description of the drawings]

1A, 1B, 1C, and 1D are a perspective view showing a first configuration example of a scaffold plate according to the present invention, and a cross-sectional view of a main part showing an example of fixing a closing material.

FIGS. 2A, 2B, and 2C are a perspective view showing a second configuration example of the scaffold plate according to the present invention, and a cross-sectional view of a main part showing an example of fixing a closing member.

FIGS. 3A, 3B, and 3C are a perspective view showing a third configuration example of the scaffold plate according to the present invention, and a cross-sectional view of a main part showing an example of fixing a closing member.

FIGS. 4A, 4B, 4C, 4D, and 4E are top perspective views and bottom perspective views showing a fourth configuration example of the scaffold according to the present invention, and cross-sections of main parts showing fixing examples of the plugging material. FIG.

FIGS. 5A and 5B are side views of relevant parts showing a structural example of an engaging portion and an engaged portion.

6 (A) and 6 (B) are side views of relevant parts showing an example of engagement between an engaging portion and an engaged portion.

FIGS. 7A and 7B are front views of a scaffold plate main body.

FIG. 8 is a perspective view showing an example of use of a scaffold plate.

FIG. 9 is a perspective view of a main part of a conventional scaffold plate.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Scaffold board main body, 1a small edge 2 tread plate part, 2a non-slip 3, 3a support part 4 installation part 5 closing material, 5a cover part, 5b upper surface part, 5c lower surface part 6 engaging part, 6a groove part, 6b engaging projection part Reference Signs List 7 Engaged part, 7a Projected part, 7b Groove part 8 Locking part, 8a Plastic deformation part, 8b, 8c Fin locking part B Girder material, No.W line L Scaffold plate length, h Scaffold plate thickness

Claims (4)

[Claims] 1. A scaffold plate body having a rectangular shape, and a fore-closing member for the scaffold plate body, the scaffold plate body having a tread plate portion, a support portion projecting downward from the tread plate portion, and an upper surface of the tread plate portion. An engaging portion is provided on a lower surface of the supporting portion, and the closing member is provided with a cover portion facing the fore edge of the scaffold plate body, an engaged portion engaged with the engaging portion, and an engaging portion engaged with the longitudinal surface of the supporting portion. A stop portion, wherein the engaged portion engages with the engaging portion to regulate the movement of the scaffold plate main body in the longitudinal direction, and the engaging portion engages with the support portion to be orthogonal to the longitudinal direction of the scaffold plate main body. A scaffold plate characterized by restricting the widthwise movement of the scaffold. 2. The scaffold plate according to claim 1, wherein the locking portion is a plastic deformation portion provided on the cover portion. 3. A tread plate portion having, at both ends in the width direction orthogonal to the longitudinal direction, a support portion also serving as a side wall, a closing member having a fin locking portion projecting from the cover portion, and the fin locking portion being supported by the side wall. The scaffold plate according to claim 1, wherein the scaffold plate is bent and locked to the portion. 4. An engaging portion of the scaffold plate main body is a groove perpendicular to the longitudinal direction of the scaffold plate main body, and an engaged portion of the closing member is a projection engaging with the groove. Item 4. The scaffold plate according to any one of Items 1 to 3.