JP2014098303A - Baseboard for scaffold board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a baseboard for a scaffold board which has a simple structure in which merely a hook is attached to a baseboard body, can be fixed to the scaffold board more reliably than in the case of fixing to the scaffold board since locked to the pipe of a scaffold, does not have the possibility of disengagement, after the fixing, even if an external force is applied thereto, can be easily attached in a single operation, and can be easily applied to an existing scaffold board.SOLUTION: As a fixing member to a horizontal pipe 4 of the scaffold, a downward fixed vertical hook 6 and a movable horizontal hook 7 laterally slidable by a slide lever project from the end outer surface of a baseboard body 2 in the longitudinal direction of the baseboard body 2. The fixed vertical hook 6 is attached to each of both left and right ends of the baseboard body 2, and the fixed vertical hooks 6 are different in projection position within a range of the horizontal width direction of the baseboard body 2. The movable horizontal hook 7 is attached to the baseboard body 2 at a position above the vertical hook 6.

Description

  The present invention relates to a baseboard to be attached to a scaffolding plate of a framework scaffold installed at a construction work site or the like.

  In a high place work on a scaffolding plate of a framework scaffolding installed at a construction work site or the like, parts such as bolts, metal fittings and tools placed by the operator may be accidentally dropped.

  In the construction industry, etc., there are many occupational accidents due to crashes and falls from high places. This time, in order to strengthen measures to prevent crashes from scaffolds, etc., crashes from scaffolds, construction passages and work platforms A part of the occupational safety and health regulations regarding the preventive measures, etc. has been revised and will come into effect on June 1, 2009.

  The contents are enhancements such as measures to prevent the fall from the scaffold, and the following measures to prevent the fall are necessary depending on the type of scaffold. Even in the framework scaffolding, in order to prevent a fall from the gap at the bottom of the cross brace, in addition to the cross brace, it is mandatory to install “under” and “baseboard” or “handrail”. It is done.

  Even in the framework scaffolding, it has been conventionally done to attach a baseboard to the side edge of the scaffolding board, but there is no fixed attachment method, for example, a strip-like board material in the form of a dam plate on the side edge of the scaffolding board They are standing and tied to the support of the framework scaffolding with wires and wires.

  However, in such a method, it took time and labor to attach and remove the baseboard, and the workability was not good.

Then, there exists a thing shown in the following patent document 1 as a baseboard which eliminates this inconvenience and can be attached to a scaffold board in one touch. This is because the set metal fitting is pivotally mounted on the outer surface side of the baseboard body so as to be swingable between a vertical posture and an inclined posture which projects the lower portion outward, and a plurality of pieces projecting downward from the lower surface of the baseboard body An upright bracket, and the set bracket is biased toward a vertical posture by a spring force, and has an inwardly engaging portion at a lower portion that projects downward from the baseboard body in the vertical posture, and the upright bracket The side edge portion is configured to be fitted between the lower surface of the baseboard body and the locking portion of the set metal fitting in a state where is inserted into the attachment hole of the side edge portion of the scaffolding plate from above.
Japanese Patent No. 3439684

  In the above prior art, the baseboard can be attached in a one-touch manner, but the baseboard is directly fixed to the scaffolding plate with a set bracket, and the set bracket only holds the scaffold plate from the outside in the vertical direction. For this reason, if the lower side of the set fitting is pushed by some external force, it may be easily removed even during work, and it is necessary to make a mounting hole in the scaffold plate.

  In recent years, due to the revision of the Occupational Safety and Health Rules, it was obliged to install a baseboard with a predetermined height or higher with respect to the scaffolding plate of the frame scaffolding. Productivity is not good.

  The present invention eliminates the inconveniences of the conventional example, and can easily fix the baseboard to the scaffolding board with a simple structure. After the fixing, there is no risk of detachment even if an external force is applied, and the attachment can be performed with one touch and simple. Thus, the present invention provides a baseboard for a scaffold board that can be easily applied to a ready-made scaffold board.

  In the first aspect of the present invention, the baseboard body can be slidable in the length direction of the baseboard body on the outer surface side of the baseboard body by a downward fixed vertical hook as a fixing member to the pipe of the scaffold, and a slide rod. A movable horizontal hook is protruded, and the fixed vertical hook is attached to both left and right ends of the baseboard body, and the protruding position is varied within the range of the width direction of the baseboard body. The gist is that it is attached to the baseboard body at a position above the vertical hook.

  According to the first aspect of the present invention, the baseboard body is locked and fixed to the horizontal pipe and the vertical pipe, which form a scaffold by the vertical hook and the horizontal hook. Therefore, the baseboard body is not fixed directly to the scaffolding plate, but is also fixed in two directions, the horizontal and vertical directions. Further, since it is locked by the hook, it is difficult to come off by an external force and is securely fixed. . Moreover, since it is only necessary to attach the hook, it can be easily done with one touch.

  Furthermore, in the present invention, when the vertical hook and the horizontal hook are provided, it is important that the horizontal hook can be laterally slid by the slide rod. If both are fixed, it is difficult to align and difficult to hang simultaneously on the horizontal pipe and the vertical pipe forming the scaffold, but this is facilitated by making the horizontal hook slidable. If the vertical hook is hung first and the baseboard body is laid down, the horizontal hook can be easily hung on the vertical pipe. Also, the vertical hooks have different projecting positions within the horizontal width direction of the baseboard body, so they are attached to the left and right ends of the baseboard body and face each other from the end of the baseboard that is connected continuously As a result, the vertical hooks protruding from adjacent baseboards do not collide with each other.

  In the present invention of claim 2, the fixed vertical hook and the movable horizontal hook are formed in a U-shaped notch in the plate-like body, and are formed so as to face the protruding step on the inner periphery of the notch. The gist is that a narrow portion is provided at the notch entrance.

  According to the second aspect of the present invention, the vertical hook and the horizontal hook are formed in the U-shaped notch in the plate-like body, and the protruding step is formed on the inner periphery of the notch, Since the narrow part is provided in the notch entrance, the horizontal hook is hooked to the horizontal pipe and the horizontal hook is hooked to the vertical pipe. The pipe is difficult to come out in the narrow part. Detachment prevention is obtained.

  Furthermore, this protruding step hardly causes any trouble when a horizontal pipe or a vertical pipe is inserted into the U-shaped notch.

  The gist of the present invention described in claim 3 is that the movable horizontal hook is attached to the baseboard body by a spring member so as to be able to appear and retract.

  According to the third aspect of the present invention, since the horizontal hook is attached to the baseboard body by the spring member so as to be able to protrude and retract, the horizontal hook can be stored in the baseboard body and becomes an obstacle when the vertical hook is locked to the horizontal pipe. There is nothing.

  As described above, the baseboard for a scaffold board according to the present invention has a simple structure in which a hook is attached to the baseboard body, and the baseboard is fixed to the scaffold board because it is hooked to the pipe of the scaffold. Compared to the case, it can be fixed securely. After fixing, there is no risk of disengagement even if an external force is applied, and it can be easily attached with one touch, and can be easily implemented on a ready-made scaffolding plate.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a front view showing an embodiment of a baseboard for a scaffold board according to the present invention, FIG. 2 is a side view of the main body of the baseboard, and the baseboard 1 of the present invention is attached to a scaffold board 3 of a frame scaffold. As a basic structure, fixing is performed on the horizontal pipe 4 and the vertical pipe 5 of the frame scaffold in the longitudinal direction of the baseboard 2 at both ends of the baseboard 2 constituted by a belt-like plate body. The vertical hook 6 and the movable horizontal hook 7 were attached to protrude.

  As shown in FIG. 2, the baseboard body 2 is a scaffolding plate as a horizontal protruding piece 2a by bending the upper end of a strip-shaped metal plate made of a steel plate or the like into an L-shape that is downwardly directed outward, and bending the slightly upper portion of the lower end horizontally inwardly. It was set as the mounting part to 3.

  As shown in FIGS. 1 and 3, the fixed vertical hook 6 is formed by forming the tip of the plate-like body 6 a into a downward U-shaped notch and hooking the notch on the horizontal pipe 4 of the frame scaffold from above. It formed in the latching | hanging part 6b.

  The U-shaped notch of the fixed vertical hook 6 is formed so that the protruding step 13 is opposed to the inner periphery of the notch, and the narrow portion 14 is provided at the notch entrance.

  The inner side from the protruding step 13 has a circumferential surface that is more than a semicircular circumference of the horizontal pipe 4, and the step of the protruding step 13 has an inclination that leads from the outside to the narrowed portion 14 toward the outer opening. Let

  The fixed vertical hooks 6 are attached to the left and right ends of the baseboard body 2 and protrude oppositely from the end portions of the baseboards 1 that are continuously connected, but the fixed vertical hooks protrude from the adjacent baseboards 1. In order to prevent the hooks 6 from colliding with each other, as shown in FIG. 3, the protruding positions were varied within the range of the width direction of the baseboard body 2 in the horizontal direction.

  Specifically, the fixed vertical hook 6 has a base portion of the plate-like body 6a abutted on the baseboard body 2 and fixed with a bolt, and a projecting portion from the baseboard body 2 is obliquely bent outward 6c. The latching portion 6b is formed on the vertical plate-like portion at the tip, and in this case, the width of the inclined portion 6c is made different between the left and right sides of the baseboard body 2.

  In the case shown in FIG. 3, the oblique portion 6 c is 15 mm on the right side of the baseboard body 2, but is 20 mm on the left side. As a result, the fixed vertical hooks 6 protruding from the adjacent baseboards 1 to be connected can be mutually inserted and can be hooked on the same horizontal pipe 4.

  The movable horizontal hook 7 is attached to the baseboard body 2 at a position above the fixed vertical hook 6, and a first example is shown in FIGS. 4 to 7. The movable horizontal hook 7 is provided with a horizontal U-shaped notch at the front end of the plate-like body to form a latching portion 7a for the vertical pipe 5, and the plate-like body on which the locking portion 7a is formed is slid by welding or the like. Fix to 杆 8.

  Like the fixed vertical hook 6, the movable horizontal hook 7 also has a U-shaped notch formed so that a protruding step 13 is opposed to the inner periphery of the notch, and a narrow portion 14 is provided at the notch entrance. did.

  The inner side from the projecting step 13 has a circumferential surface that is more than a semicircular circumference of the vertical pipe 5, and the step of the projecting step 13 has an inclination that leads from the outside to the narrow portion 14 toward the outer opening. Let

  In the vicinity of the rear end of the slide rod 8, a locking recess 8a for the leaf spring 11 described later is provided.

  The means for attaching the slide rod 8 to the baseboard body 2 is a horizontally long U-shape in which a mounting plate 9 is fixed to the outer surface of the baseboard body 2 with bolts, and a band plate member is bent on the outer surface of the mounting plate 9. The support member 10 is fixed by welding or the like. In this case, the support member 10 is longer than the attachment plate 9, and the rear portion of the support member 10 protrudes rearward from the attachment plate 9.

  The support member 10 is formed with insertion holes for the slide rods 8 at the rising portions at both ends of the U-shape. As a result, the slide rod 8 is slidably supported by the support member 10.

  A leaf spring 11 is attached to a gap formed outside the mounting plate 9 on the inner surface side of the rear portion of the support member 10. The leaf spring 11 protrudes rearward from the support member 10, and a 90-degree bent portion toward the outside is formed in a mountain shape on the protruding portion, and the bent portion is a latch provided on the slide rod 8. It becomes the latching protrusion 11a to the recessed part 8a.

  In order to attach the baseboard 1 to the scaffold board, as shown in FIG. 2, the baseboard 1 is disposed on the side edge of the scaffold board 3, and the horizontal protrusion 2a is placed on the scaffold board 3, as shown in FIG. The hook 6b of the fixed vertical hook 6 is hooked from above on the horizontal pipe 4 constituting the frame scaffold. In this case, the vertical hooks 6 project from the opposing scaffolding plates to face each other between the continuous scaffolding plates, but the fixed vertical hooks 6 project in the opposite direction as described above. The tip does not collide and is hooked on the same horizontal pipe 4 in parallel.

  In this state, the fixed vertical hook 6 has the latching portion 6b facing downward, and therefore, there is no possibility that the fixed vertical hook 6 is detached from the horizontal pipe 4 when a load of the baseboard body 2 is applied.

  If the horizontal pipe 4 or the vertical pipe 5 becomes an obstacle during the locking operation of the fixed vertical hook 6, if the slide rod 8 is slid rearward along the support member 10 against the elasticity of the leaf spring 11, The latching portion 7 b is immersed in the baseboard body 2.

  In this way, when the movable horizontal hook 7 is pulled out from the baseboard body 2 and the latching portion 7a is inserted into the vertical pipe 5 and latched, the baseboard 2 has already been engaged with the fixed vertical hook 6 to the horizontal pipe 4. The movable horizontal hook 7 can be moved without interfering with the vertical pipe 5 by tilting the baseboard body 2 at an angle, and the latching portion 7a and the vertical pipe 5 can be moved. If the baseboard body 2 is set up vertically at the place where the two are aligned, it can be easily and quickly locked.

  When the fixed vertical hook 6 is attached to the horizontal pipe 4 as described above, the movable horizontal hook 7 is then pulled out from the baseboard body 2 and the latching portion 7a is inserted into the vertical pipe 5 and latched. In this state, the locking protrusion 11a of the leaf spring 11 is elastically fitted into the locking recess 8a formed on the slide rod 8, and the horizontal hook 7 is fixed to the baseboard main body 2 at that position, from the vertical pipe 5. There is no fear of coming off.

  In this way, the fixed vertical hook 6 and the movable horizontal hook 7 are fixed to the horizontal pipe 4 and the vertical pipe 5 of the frame scaffold, so that the baseboard 1 is disposed on the side edge of the scaffold plate.

  When the skirting board 1 is not used, the skirting board main body 2 is horizontally lowered and stacked as shown in FIG. In this case, the baseboard body 2 in the up-and-down position is stacked upside down so that the horizontal protrusions 2a protrude upward and downward. Thereby, it is stacked in a stable state without any useless space and without lateral displacement.

  In addition, the engagement between the leaf spring 11 and the slide rod 8 is such that the end of the slide rod 8 is in contact with the slope of the mountain of the leaf spring 11 in addition to providing the locking recess 8a in the slide rod 8 as described above. Also good.

That is, the end of the slide rod 8 gets over the leaf spring 11, and the slope of the mountain of the leaf spring 11 pushes the end of the slide rod 8. Even in this way, the slide rod 8 can be fixed by the urging force of the leaf spring 11.

  FIGS. 9 to 12 show a second example of the means for attaching the movable horizontal hook 7 to the baseboard body 2. Instead of the leaf spring 11 of the first example described above, the coil spring 12 is slid within the range of the support member 10. 8, and a ring as a stopper 8 b was attached to the rear end of the slide rod 8. Other configurations are the same as those in the first example.

  As a result, as shown in FIG. 9B, the slide rod 8 and the movable horizontal hook 7 are urged in the protruding direction by the extension force of the coil spring 12, and the horizontal hook 7 protrudes from the baseboard body 2 so that the latching portion 7a is The vertical pipe 5 is pressed and hooked.

  In this state, since the pressing force in the direction of the vertical pipe 5 is applied to the movable horizontal hook 7 by the coil spring 12 as described above, the movable horizontal hook 7 does not come off the vertical pipe 5.

  Even when the movable horizontal hook 7 is not hooked on the vertical pipe 5, a force in a direction protruding from the baseboard body 2 is urged by the coil spring 12 to the movable horizontal hook 7, but the slide rod 8 A stopper 8b is provided at the rear end, and as shown in FIG. 12, this abuts the outside of the support member 10, so that the slide rod 8 does not come out of the support member 10.

  In order to immerse the movable horizontal hook 7 in the baseboard body 2, it may be pushed in against the elasticity of the coil spring 12.

It is a front view which shows embodiment of the baseboard for scaffold boards of this invention. It is a side view of the baseboard main body of the baseboard for scaffold boards of this invention. It is a top view of the state which removed the horizontal hook of the baseboard for scaffold boards of this invention. It is a cross-sectional top view of the state which attached the 1st example of the horizontal hook of the baseboard baseboard of this invention to the baseboard main body. It is a top view which shows the 1st example of the horizontal hook of the baseboard for scaffold boards of this invention. It is a side view which shows the 1st example of the horizontal hook of the baseboard for scaffold boards of this invention. It is a front view which shows the 1st example of the horizontal hook of the baseboard for scaffolding boards of this invention. It is explanatory drawing of the state which stacked the baseboard main body of the baseboard for scaffold boards of this invention. It is a cross-sectional top view of the state which attached the 2nd example of the horizontal hook of the baseboard for scaffolding boards of this invention to the baseboard main body. It is a top view which shows the 2nd example of the horizontal hook of the baseboard for scaffolding boards of this invention. It is a side view which shows the 2nd example of the horizontal hook of the baseboard for scaffolding boards of this invention. It is a front view which shows the 2nd example of the horizontal hook of the baseboard for scaffold boards of this invention.

DESCRIPTION OF SYMBOLS 1 Baseboard 2 Baseboard body 3 Scaffolding board 4 Horizontal pipe 5 Vertical pipe 6 Fixed vertical hook 6a Plate-like body 6b Hanging part 6c Slant part 7 Movable horizontal hook 7a Hanging part 8 Slide hook 8a Locking recessed part 8b Stopper 9 Installation Plate 10 Support member 11 Plate spring 11a Locking projection 12 Coil spring 13 Projection step 14 Narrow portion

Claims (3)

  On the outer surface side of the end of the baseboard body, in the length direction of the baseboard body, a downward fixed vertical hook as a fixing member to the pipe of the scaffolding and a movable horizontal hook that can be slid horizontally by a slide rod, The fixed vertical hooks are attached to the left and right ends of the baseboard body, and the protruding positions are varied within the range of the horizontal direction of the baseboard body, and the movable horizontal hook is located above the vertical hook. A baseboard for a scaffolding board, characterized in that it can be attached to.   The fixed vertical hook and the movable horizontal hook are formed in a U-shaped notch in the plate-like body, and are formed so that a protruding step is opposed to the inner periphery of the notch, and a narrow portion is provided at the notch entrance. The baseboard for scaffold boards according to claim 1.   The scaffolding baseboard according to claim 1 or 2, wherein the movable horizontal hook is attached to the baseboard body by a spring member so as to be able to protrude and retract.

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