Attachment metal fitting of baseboard for temporal handrail

Abstract

To provide an attachment metal fitting of a baseboard for a temporal handrail allowing installation and detachment of the baseboard used for the temporal handrail to be made easier and capable of meeting various types of baseboards and various thicknesses of baseboards while preventing the attachment metal fitting for the baseboards from easily falling off during disassembly.SOLUTION: Attachment metal fittings of baseboards arranged on a pair of vertical columns of a temporal handrail on which the baseboards are attached comprises based parts fixable through sliding the vertical columns, and a receiving / holding part holding clamping the baseboard with a baseboard limit rod, wherein the receiving / holding part is provided with a fixation lock part keeping the vertical columns in a horizontal state at an upper position and a lower position, respectively, which prevents objects from falling down from a floor surface end through erecting the baseboard vertically on a floor surface upon fixation thereof at the lower position to retreat the baseboard from the floor surface so as not to interfere with the work on the floor surface by holding the baseboard at an intermediate part of the vertical column upon fixation thereof at the upper position.SELECTED DRAWING: Figure 9

Description

Technical Field

[0001] The present invention relates to a mounting bracket for a temporary handrail width timber used at a construction site or the like.

Background Art

[0002] Conventionally, at a temporary reinforcement site, in order to prevent objects from falling, as shown in Patent Document 1, a width timber is provided at the lower part of the temporary handrail. In addition, in concrete placement at a construction site, in order to enhance safety, a temporary handrail is provided at the end where concrete is placed as shown in FIG. 1, and a width timber is provided along the edge so that tools or the like do not fall from the floor end of the temporary handrail.

[0003] However, when constructing concrete placement, the temporary handrail often gets in the way. In this case, each time, the width timber tied with a wire is untied and removed from the vertical support, or as shown in FIG. 2, the bolt of the clamp is removed and the temporary handrail is removed from the vertical support. Thus, with conventional clamps and wires, when moving the width timber 3, it is time-consuming and troublesome because it has to be removed each time and fixed at the position of a predetermined vertical support, and it often gets lost during on-site disassembly for detaching the clamp and wire from the vertical support.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] The present invention has been made in view of the above-mentioned inconveniences, and simplifies the installation and removal of the crossbars used for the temporary handrail, and also prevents loss by attaching them to the vertical columns during on-site disassembly. In addition, it aims to provide a mounting bracket for the crossbars of a temporary handrail that can also accommodate various crossbars and various crossbar thicknesses.

Means for Solving the Problems

[0006] In order to solve the above problems, the present invention provides a crossbar mounting bracket for attaching a crossbar to a pair of vertical columns of a temporary handrail. The crossbar mounting bracket consists of a base portion that can be fixed by sliding on the vertical column, and a storage restraining portion that holds the crossbar by sandwiching it with a crossbar retaining rod. The storage restraining portion is provided with a fixing lock portion on the base portion that keeps it parallel to the vertical column in the upper and lower directions. When fixed below, the crossbar is erected perpendicular to the floor surface to prevent objects from falling downward from the floor surface end. When fixed above, the crossbar is held at the middle portion of the vertical column to retract the crossbar from the floor surface so as not to interfere with the work on the floor surface. It is a mounting bracket for the crossbars of a temporary handrail, and the crossbar retaining rod is characterized in that it can be adjusted to accommodate changes in the thickness or number of crossbars.

Effects of the Invention

[0007] According to the mounting bracket for the crossbars of the temporary handrail of the present invention, the crossbar can be easily attached to the floor side of the temporary handrail, removed easily when constructing concrete pouring, etc., temporarily stored in the middle portion of the vertical axis of the temporary handrail, and the crossbar can be easily moved to the floor side when the pouring work is completed, and it is attached to the vertical column during on-site disassembly to prevent loss. In addition, it can be fixed corresponding to various crossbars and various crossbar thicknesses.

Brief Description of the Drawings

[0008]

Figure 1

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Figure 14

Embodiments for Carrying Out the Invention

[0009] Hereinafter, preferred embodiments of the mounting bracket for the width timber of the temporary handrail of the present invention will be described with reference to the drawings. First, the temporary handrail body 1 of this embodiment is a conventional one as shown in FIG. 1. The temporary handrail body 1 consists of upper and lower handrail crossbars 11. The handrail crossbars 11 have slide extension parts at both ends and are designed to change the width as required. On both sides of the temporary handrail body 1, a vertical support base part 121 is provided at the lower part of the vertical support 12. A floor-side fixed hollow pole 2 is provided at a predetermined position on the floor side, and the vertical support base part 121 is inserted and fixed therein.

[0010] The feature of this invention is that a mounting fitting 4 for a crossbar is provided to slide on the vertical support 12, which stores the crossbar at an intermediate position between the floor. The details will be described with reference to FIGS. 5 to 11. In FIG. 5, the mounting fitting 4 for a crossbar is attached to the vertical support 12 and consists of a pair of semi-circular clamping pieces 41a, 41b. The clamping pieces are rotatably supported by a support shaft 42 composed of a bolt and a nut. By turning the clamping grip part 431 of the screw member 43 on the opposite side, the clamping pieces 41a, 41b on the opposite side are also clamped by the screw member 43. As a result, it is fixed at a predetermined position of the vertical support 12 for storing the crossbar at an intermediate position between the floor. Note that the tip of one clamping piece 41b is bent in a U shape to prevent the other clamping piece 41a from falling off.

[0011] As shown in FIGS. 5 and 6, a crossbar stopper rod 5 for the crossbar is rotatable on the side surface of the clamping piece 41b to an upper position (FIG. 6 shows the upper position) for storing the crossbar at an intermediate position of the vertical support 12 and a lower position for storing it on the floor side, and is fixed at each position. By the way, as shown in FIGS. 7 and 8, one end of the crossbar stopper rod 5 is a straight rod 51 with a length for accommodating the crossbar, and the other end is a tip part 52 bent in an L shape. As shown in FIG. 5, the tip part 52 has a protruding spring support part 521 that supports a spring 522 by a spring frame part 523 and is always pressed toward the vertical support 12 side, and is supported to rotate around the tip part 52. The fixing means of this width wood stop bar 5 is provided with a locking pin 53 near the L-shaped bend, and corresponding fitting holes 54a and 54b are provided on the outer surface 5231 of the spring frame portion 523. Pull out the width wood stop bar 5 against the pressing force of the spring 522 from either the upper fitting hole 54a or the lower fitting hole 54b, release the fitting, and perform an operation of fitting it into the other fitting holes 54a and b, thereby fixing the linear bar 51 of the width wood stop bar 5 upward or downward. In addition, for the mounting fitting 4 for the width wood, by rotating the tightening grip portion 431 to loosen the tightening of the tightening pieces 41a and 41b, not only can the vertical support column 12 move up and down, but also the linear bar 51 can be reversed without removing the mounting fitting 4 for the width wood. The width wood 5 can be provided on the floor side or the vertical support column side. In this way, since it is not necessary to remove the mounting fitting 4 for the width wood from the vertical support column 12, it can be prevented from being lost by being attached to the vertical support column during on-site disassembly.

[0012] As described above, usually, just by rotating the tightening grip portion 431 of the mounting fitting 4 for the width wood, the tightening of the tightening pieces 41a and 41b can be loosened, but it will not fall off. However, in FIGS. 12 to 14, a mechanism for preventing the mounting fitting 4 for the width wood from falling off even when the tightening grip portion 431 is rotated to loosen the tightening of the tightening pieces 41a and 41b will be described. The anti-drop pin 62 for preventing dropping from this vertical support column, the passing pin 61 in the vertical support column 12 in FIGS. 5 and 12 passes through the vertical support column 12 as shown in FIG. 13. However, since the head 621 and the nut portion 622 of the anti-drop pin 62 in FIG. 14 are too thick to pass through the gaps E and F, they cannot pass through the vertical support column 12, and the mounting fitting 4 for the width wood will not fall off. Therefore, it can be prevented from being lost by being attached to the vertical support column 12 during on-site disassembly. To completely disassemble the mounting fitting 4 for the width wood, the anti-drop pin 62 can be removed.

[0013] [Operation] Since the embodiment of the present invention has the above configuration, the overall operation will be described next. First, as shown in FIGS. 3 and 9, insert the lower ends of the pair of vertical struts 12 of the temporary handrail body 1 into the pair of side-fixed hollow holes 2 provided on the floor side. Arrange the width timbers 3 on the floor side along the vertical struts 12. After finishing the arrangement, pull out the lock pin 53 on the linear rod 51 of the width timber stop bar 5 of the mounting fitting 4 for the width timber from the fitting hole 54a, invert it to face downward as shown in FIG. 9, and fit and fix the lock pin 53 into the fitting hole 54b. At this time, when the width of the width timber 3 is thick or when handling multiple stacked width timbers 3, as shown in FIGS. 10 (when there is one normal width timber 3) and 11 (when two or more width timbers 3 are stacked), with respect to the vertical strut 12, the position of the linear rod 51 of the width timber stop bar 5 is adjusted by rotating the tightening pieces 41a and 41b with respect to the vertical strut 12 as shown in FIG. 11. As a result, the width between the vertical strut 12 and the width timber stop bar 5 in FIG. 11 can be adjusted by a distance X, and the width timber 3 can be tightened to the vertical strut 12 with the width timber stop bar 5.

[0014] In this way, fix the width timber 3 to the floor side of the temporary handrail body 1 and resume normal work. Describe the case where, after a predetermined operation is completed, the width timber 3 is retracted from the floor side. In this case, as shown in FIGS. 4 and 8, move the mounting fitting 4 for the width timber to the middle position of the vertical strut 12, stand up the width timber stop bar 5 of the mounting fitting 4 for the width timber upward, and sandwich and store the width timber 3 between the width timber stop bar 5 and the vertical strut 12. The reversing operation is the opposite of the case in FIG. 9. Pull out the lock pin 53 on the linear rod 51 of the width timber stop bar 5 of the mounting fitting 4 for the width timber from the fitting hole 54b, invert it to face upward as shown in FIG. 9, and fit and fix the lock pin 53 into the fitting hole 54a. Therefore, the width timber stop bar 5 can be adjusted to accommodate changes in the thickness of a single width timber 3 or the thickness at the stacked portions of the width timbers 3.

[0015] According to the attachment fitting for the temporary handrail width timber of this embodiment, the width timber can be easily attached to the floor side of the temporary handrail, can be easily removed when constructing operations such as concrete placement are carried out, can be temporarily stored in the middle part of the vertical axis of the temporary handrail, and when the placement work is completed, the width timber can be easily moved to the floor side. Also, since the width timber stop bar 5 can rotate around the vertical support 12, it can be fixed corresponding to various width timbers and various thicknesses of width timbers. Since it is not necessary to remove the attachment fitting 4 for the width timber from the vertical support 12, the attachment fitting for the temporary handrail width timber can be attached to the vertical support 12 during on-site disassembly to prevent loss. In this way, by providing the attachment fitting for the temporary handrail width timber, the work efficiency at the construction site is improved.

Explanation of reference numerals

[0016] 1··Temporary handrail main body, 11··Handrail cross bar, 111··Slide extension part, 12··Vertical support, 121··Vertical support base part, 2··Floor side fixed hollow pole, 3··Width timber, 4··Attachment fitting for width timber, 41a, 41b··Clamping pieces, 411··Anti-disengagement, 42··Support shaft, 43··Screw member, 431··Clamping grip part, 5··Width timber stop bar, 51··Straight bar, 52··L-shaped tip part, 521··Spring support part, 522··Spring, 523··Spring frame part, 53··Lock pin, 54a, 54b··Insertion holes, 9··Clamp, 91··Clamping member, 92··Clamping bolt.

Claims

1. A pair of baseboard mounting brackets are provided to attach baseboards to the pair of vertical posts of the temporary handrail; The baseboard mounting bracket comprises a base portion that can slide and fix the vertical post, and a storage retainer portion that holds the baseboard by sandwiching it between the baseboard retaining bar, This mounting bracket for a temporary handrail baseboard is characterized in that the storage retainer is provided with a fixed lock portion on the base portion that keeps the vertical support in a parallel state above and below, and when fixed below, the baseboard is set up vertically on the floor surface to prevent objects from falling downward from the edge of the floor, and when fixed above, the baseboard is held by the middle part of the vertical support and moved away from the floor surface so as not to interfere with work on the floor.

2. 2. The mounting bracket for a temporary handrail baseboard according to claim 1, wherein the baseboard stopper bar can be adjusted to accommodate changes in thickness or number of baseboards.

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