JPH0522764U - Temporary passage - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] To provide a temporary passage in which the constituent members can be disassembled into small pieces and the total length can be easily and largely changed. [Structure] It is composed of two beams 11 extending in parallel between two support beams A, and a plurality of step plates 12 extending over the two beams 11, and each beam 11 is
Consists of a combination of two side beams 13 having joint portions connectable to each other and a center beam 14 installed between the two side beams 13 and having joint portions connectable to the joint portions of the side beams 13 at both ends. did.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a temporary passage installed across two support beams at a construction site.

[0002]

[Prior Art]

 Conventionally, as a temporary passage of this type, as shown in FIG. 7, there are auxiliary passage plates 2 and 3 slidably provided on the left and right sides of the main passage plate 1 with respect to the main passage plate 1.

Since the total length of this device can be adjusted by sliding the auxiliary passage plates 2 and 3 with respect to the main passage plate 1, the auxiliary passage plates 2 and 3 are installed between various support beams A having different intervals. be able to.

[0004]

[Problems to be solved by the device]

 However, since the above-mentioned conventional temporary passage is for adjusting the total length by sliding the auxiliary passage plates 2 and 3 with respect to the main passage plate 1, the adjustment amount is not so large.

For this reason, when the distance between the support beams A becomes large, the adjustment by the auxiliary passage plates 2 and 3 cannot often be performed.

Further, since the main passage plate 1 and the auxiliary passage plates 2 and 3 forming the above-mentioned conventional temporary passage cannot be disassembled to a small extent, they are bulky and inconvenient for transportation and storage.

Therefore, the present invention seeks to provide a temporary passage in which the constituent members can be disassembled into small pieces and the total length can be easily and largely changed.

[0008]

[Means for Solving the Problems] In order to solve the above problems, the present invention has a temporary passage having the following structure.

That is, a joint that is composed of two beams that are bridged in parallel between two support beams and a plurality of step plates that are bridged between the two beams, and that is capable of connecting the beams to each other. It is composed of two side beams each having a section, and a center beam which is provided between the two side beams and has joint portions at both ends which can be connected to the joint portions of the side beams.

[0010]

[Action]

 The temporary passage having the above structure can be disassembled into a side beam, a center beam, and a walk board by removing a joint portion connecting the side beam and the center beam.

Further, only by exchanging the center beam, the total length of the temporary passage can be lengthened or shortened.

[0012]

【Example】

 An embodiment of the present invention will be described below with reference to the accompanying drawings.

The temporary passage according to the present invention is composed of two beams 11 extending in parallel between the two support beams A and a plurality of step plates 12 extending over the two beams 11. Become.

The beam 11 is installed between two side beams 13 having joint portions that can be connected to each other, and joint portions that can be connected to the joint portions of the side beams 13 are provided at both ends. It is configured in combination with the center beam 14 that it has.

The side beam 13 has a structure in which an upper chord member 15 and a lower chord member 16 are connected by a plurality of stiffening members 17. The upper chord member 15 is formed in a straight line, and the lower chord member 16 is the upper chord member 16. It is composed of a linear portion that is close to 15, an inclined portion that gradually separates from the upper chord member 15, and a parallel portion that is provided at the tip of the inclined portion.

Joint plates 18 and 19 forming joints are fixed to the tips of the upper chord member 15 and the lower chord member 16 of the side beam 13, respectively. The joint plate 18 of the upper chord member 15 is provided so that the plate surface thereof is orthogonal to the upper chord member 15 so as to withstand the compressive stress. On the other hand, the joint plate 19 of the lower chord member 16 has a plate surface parallel to the lower chord member 16 so as to withstand tensile stress. Bolt insertion holes are formed in the joint plates 18 and 19, respectively.

The stiffener 17 at the tip of the side beam 13 is provided with a pair of cross bracing pins 21 for attaching the bracing braces 20.

Next, the center beam 14 has a structure in which an upper chord member 22 and a lower chord member 23 that are provided in parallel are connected by a complement of a stiffening member 24. The distance between the upper chord member 15 and the lower chord member 16 at the tip of the beam 13 is the same. Further, as the center beam 14, as shown in FIGS. 3B, 3C, and 3D, several types of different center lengths are prepared.

Joint plates 25 and 26, which form joints, are fixed to both ends of the upper chord member 22 and the lower chord member 23 of the center beam 14, respectively. The joint plate 25 of the upper chord member 22 is provided so that the plate surface thereof is orthogonal to the upper chord member 22 so as to face the joint plate 25 of the side beam 13. On the other hand, the joint plate 26 of the lower chord member 23 is provided with its plate surface parallel to the lower chord member 23 so as to be overlapped with the joint plate 19 of the side beam 13. Bolt insertion holes are formed in the joint plates 25 and 26 of the center beam 14 so as to coincide with the bolt insertion holes of the joint plates 18 and 19 of the side beam 13, respectively.

Of the center beams 14 of FIGS. 3 (B), (C), and (D), the center beam 14 of (C) and (D) has a center direction orthogonal to the upper chord member 22 and the lower chord member 23. A stiffening member 24 is provided on the stiffener 24, and a cross bracing pin 21 for mounting the cross bracing 20 is provided on the stiffening member 24.

On the left and right sides of the step board 12, a pair of tabs 27 are fixed.

Next, the assembling of the temporary passage according to the present invention will be described.

First, the length of the beam 11 is adjusted by changing the combination of the side beam 13 and the center beam 14 according to the distance between the two support beams A in which the temporary passage is installed. The length of the beam 11 is shortest when the two side beams 13 are spliced together without using the center beam 14, and between the two side beams 13, the center beam 14 of FIG. It will be the longest when spliced together.

The side beam 13 and the center beam 14 can be easily joined by overlapping the joint plates 19 and 26 of the upper chord members 16 and 23 and fixing the bolts through the bolt insertion holes.

Assembling the two beams 11 as described above, attaching the cross pad 20 to the cross pin 21 of the two beams 11 to make them parallel, and as shown in FIG. 1 and FIG. , The support beam A is bridged between the two support beams A, and the walk plate 12 is sequentially laid on the two beams 11.

Even if the walk board 12 is installed in a direction orthogonal to the two beams 11 as shown in FIG. 1, it is parallel to the two beams 11 as shown in FIG. You may choose to install it. When the walk board 12 is installed in a direction orthogonal to the two beams 11 as shown in FIG. 1, the walk board 12 is adjusted by adjusting the interval between the two beams 11 to the length of the walk board 12. The hook metal fitting 27 is hooked on the upper chord members 15 and 22 of the side beam 13 or the center beam 14. On the other hand, when the walk board 12 is installed in parallel with the two beams 11 as shown in FIG. 2, the horizontal member 28 is attached to the two beams 11 as shown in FIG. It is bridged every 12 lengths, and the hook metal fittings 27 of the step board 12 are hooked on the horizontal members 28. As shown in FIG. 6, the horizontal member 28 has vertical members 30 fixed to both sides of two parallel horizontal members 29, and the upper chord members of the side beam 13 or the center beam 14 are laterally attached to the vertical members 30. It has a structure in which a U-shaped metal fitting 31 to be hooked on 15, 22 is fixed downward. When using this cross member 28, the braces 20 are not always necessary.

[0027]

[Effect of the device]

 Since the temporary passage according to the present invention is as described above, the constituent members can be broken down into small pieces, and the total length can be easily changed greatly.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a temporary passage according to the present invention.

FIG. 2 is a perspective view showing another example of the temporary passage according to the present invention.

FIG. 3A is a front view of a side beam, and FIGS.
(D) is a front view of the center beam

FIG. 4 is a front view of a beam joint portion.

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

FIG. 6 is a front view of a horizontal member.

FIG. 7 is a front view of a conventional example.

[Explanation of symbols]

 11 beam 12 step plate 13 side beam 14 center beam 15, 22 upper chord member 16, 23 lower chord member 17, 24 stiffener 18, 19, 25, 26 joint plate 20 cross braces 21 cross braces pins 27 Tsuka metal fittings 28 Horizontal material 29 Horizontal material 30 Vertical material 31 U-shaped metal fittings

Claims (1)

[Scope of utility model registration request] 1. A joint portion comprising two beams bridged in parallel between two support beams, and a plurality of step plates bridged by the two beams, wherein the beams can be connected to each other. A temporary passage characterized in that it is configured by a combination of two side beams having the above and a center beam which is installed between the two side beams and has joint portions which can be connected to the joint portions of the side beams at both ends.