JP4428701B2 - Scaffold plate support bracket - Google Patents

Description

  The present invention relates to a scaffolding plate support bracket that is utilized when an auxiliary scaffolding plate is installed outside a framework scaffolding.

As described in Patent Document 1, this type of scaffolding plate support bracket is attached to a horizontal scaffolding plate supporting member, a vertical member depending from the inner end of the scaffolding plate supporting member, and the vertical member. And a pipe clamp.
Japanese Patent Publication No.59-22844

  Thus, this type of conventional scaffolding plate support bracket is constructed by welding the inner end of the scaffolding plate support member and the upper end of the vertical member in a state where they are held in a predetermined position. Therefore, both welding operations take time and effort, and the cost is high.

An object of the present invention is to provide a scaffolding plate support bracket capable of solving the above-described conventional problems, and the means thereof is shown with reference numerals of embodiments described later. A scaffolding plate support bracket comprising a horizontal scaffolding plate support member 1, a vertical member 2 depending from the inner end of the scaffolding plate support member 1, and a pipe clamp 4 attached to the vertical member 2, The scaffold plate support member 1 is made of a round pipe material, the vertical member 2 is made of a groove-shaped section, and a pipe end fitting portion 7 is formed at the upper end. Is formed of left and right side plate portions 2a and 2b of the vertical member 2 and a top plate portion 2d connecting the left and right side plate portions 2a and 2b at the upper end of the vertical member 2, and the scaffold plate support member 1 The pipe inner end 1a is inserted and removed in the axial direction Only capable to fitted, in scaffolding plate support bracket to the pipe end portion 1a of the scaffolding plate support member 1 which is fitted with the pipe end fitting portion 7 thereto formed by sticking together,
A vertical steel pipe in which a support member 3 for supporting the scaffold plate support member 2 is installed between the vertical member 2 and the scaffold plate support member 1, and the pipe clamp 4 is fastened to the lower end side of the vertical member 2. The fitting member 5 fitted from the side is attached to P, and the lower end mounting plate portion 3e of the support member 3 and the mounting plate portion 5d of the fitting member 5 have the same height on both sides of the bottom plate portion 2c of the vertical member 2. The support member 3 and the fitting member 5 are fixed to the vertical member 2 by a stopper (rivet 11) penetrating these three members .

  In carrying out the present invention having the above-described configuration, as described in claim 2, the upper end top plate portion 2 d of the vertical member 2 is provided with a notch portion 8 that widens the scaffold plate support region of the scaffold plate support member 1. Or the pipe end fitting portion 7 of the vertical member 2 is configured such that its outer diameter is the same as the pipe outer diameter of the scaffolding plate support member 1, The pipe inner end 1 a of the scaffold plate support member 1 can be reduced in diameter so as to be fitted into the pipe end fitting portion 7 of the vertical member 2.

  The means for fixing the pipe inner end 1a of the scaffolding plate support member 1 and the pipe end fitting portion 7 of the vertical member 2 may be any means such as welding, riveting, caulking or the like. The burring tube portion 9 is formed so as to protrude inward from the peripheral wall of the pipe end fitting portion 7 and penetrate the peripheral wall of the pipe inner end portion 1a of the scaffolding plate support member 1 as described in claim 4. Thus, the pipe inner end 1a of the scaffold plate support member 1 and the pipe end fitting portion 7 of the vertical member 2 can be fixed to each other.

In addition, when the scaffolding plate support bracket 1 is provided with a scaffolding plate dropping stopper protruding piece 6 on the outer end of the scaffolding plate support member 1, the scaffolding plate dropping stopper protruding piece 6 is as described in claim 5. It is assumed that a bottomed cylindrical protrusion 6d that fits inside the pipe outer end 1b of the scaffold plate support member 1 is formed on the mounting plate portion 6a that closes the pipe outer end 1b of the scaffold plate support member 1. The burring tube portion 18 is formed so as to protrude inward from the peripheral wall of the pipe outer end portion 1b of the scaffold plate supporting member 1 and to penetrate the peripheral wall of the bottomed cylindrical protruding portion 6d of the scaffold plate dropping stopper protruding piece 6. Thus, the scaffolding plate support member 1 and the scaffolding plate dropping stopper protruding piece 6 can be fixed to each other.

According to the bracket for supporting a scaffold plate according to the present invention having the above-described configuration, the vertical member that holds the pipe clamp can easily attach the pipe clamp using the bottom plate portion, and can also ensure the necessary bending strength. Although it is composed of a groove-shaped section, when the pipe inner end of the scaffolding plate support member is attached to the upper end of the vertical member, the pipe inner end is used as the pipe end fitting portion at the upper end of the vertical member. By inserting in the axial direction, the scaffolding plate support member can be positioned at a right angle with respect to the vertical member, and even if both are fixed by welding, the welding operation can be performed efficiently and easily with high accuracy. It is possible to improve the quality of the entire bracket for supporting the scaffolding plate and reduce the cost.
Furthermore, in the bracket for supporting a scaffold plate according to the present invention, a support member for supporting the scaffold plate support member is installed between the vertical member and the scaffold plate support member, and the pipe is disposed on the lower end side of the vertical member. A fitting member fitted from the side is attached to the vertical steel pipe to which the clamp is fastened, but the welding work for fixing the supporting member and the fitting member to the vertical member is omitted, and the supporting member is supported by the vertical member. Compared with the case where the member and the fitting member are riveted separately, the number of rivets used can be reduced, and can be manufactured at low cost.

  In addition, according to the structure of Claim 2, even if it does not give special processing to the pipe material of a scaffold board support member, a sufficient flat scaffold board support area | region of the upper surface of a scaffold board support member is ensured, and a scaffold board Can be stably supported. Moreover, according to the structure of Claim 3, although the diameter reduction process with respect to the pipe inner end part of a scaffold board support member is needed, the bracket full length containing the upper end of a vertical member, ie, the upper surface of a pipe end fitting part, As a flat scaffolding plate support region, a wide scaffolding plate can be stably supported.

  Moreover, according to the structure of Claim 4, the welding operation for mutually fixing the pipe inner end part of the said scaffold board support member and the pipe end fitting part of the said vertical member is omitted, and also rivets etc. It is not necessary to use a stopper, and the cost can be further reduced.

Furthermore, in the case of configuring a scaffolding plate support bracket in which a scaffolding plate dropping stopper projecting piece is provided on the outer end of the scaffolding plate support member, according to the configuration of claim 5 , the scaffolding plate dropping stopper protruding piece is The welding work for fixing to the outer end of the scaffolding plate support member is omitted, and it is not necessary to use other stoppers such as a rivet, and it can be manufactured at low cost.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific embodiments of the present invention will be described below with reference to the accompanying drawings. In FIGS. 1 to 5, 1 is a scaffolding plate support member, 2 is a vertical member, 3 is a support member, 4 is a pipe clamp, and 5 is a fitting. The joint member 6 is a scaffolding plate drop stopper protruding piece. The scaffolding plate support member 1 is made of a round pipe material, and the upper end portion of the vertical member 2 is attached to the pipe inner end portion 1a at a right angle, and the scaffolding plate dropping stopper projecting piece 6 is attached to the pipe outer end portion 1b. It has been. 1 c is a weld bead that swells linearly along the axial direction from the inner peripheral surface of the pipe material of the scaffold plate support member 1. The support member 3 is installed obliquely between the lower end portion of the vertical member 2 and the position near the outer end of the scaffolding plate support member 1.

  In more detail below, the vertical member 2 has a cross-sectional groove shape, and the left and right side plate portions 2a, 2b and the bottom plate portion 2c, and the left and right side plate portions 2a, 2b at the upper end of the vertical member 2. And the top plate portion 2d integrally connected from the bottom plate portion 2c, and the upper end portion of the left and right side plate portions 2a, 2b and the top plate portion 2d have an outer diameter larger than the lateral width of the vertical member 2. A pipe end fitting portion 7 is formed in which the pipe inner end portion 1a of the large scaffolding plate support member 1 is fitted so that it can be inserted and removed only in the axial direction. Further, the top plate portion 2 d that forms the upper surface of the pipe end fitting portion 7 has a cutout portion 8 in which approximately half of the outer side is cut off. Thus, in the state where the pipe inner end 1a of the scaffolding plate support member 1 is inserted into the pipe end fitting portion 7, the upper end portions of the left and right side plate portions 2a and 2b which become the peripheral walls of the pipe end fitting portion 7 are formed. 1B, a pair of left and right burring cylinders 9 projecting inward so as to penetrate the peripheral wall of the pipe inner end 1a of the scaffolding plate support member 1 are formed concentrically with each other, and the pair of left and right burring cylinders By the portion 9, the pipe inner end portion 1 a of the scaffolding plate support member 1 and the pipe end fitting portion 7 of the vertical member 2 are fixed to each other.

  In addition, regarding the formation of the pair of left and right burring cylinders 9, a through-hole having a diameter in which the burring cylinder 9 is closely fitted in the peripheral wall of the pipe inner end 1 a of the scaffolding plate support member 1 is provided in advance. A small-diameter through hole for forming the burring tube portion 9 is provided in advance in the peripheral wall of the pipe end fitting portion 7 (left and right side plate portions 2a and 2b of the vertical member 2).

  The support member 3 is made of a cross-sectional groove-shaped member that can be fitted into the cross-sectional groove-shaped member used between the vertical members 2 (between the left and right side plate portions 2a and 2b). At both ends, there are provided mounting plate portions 3d and 3e that are press-molded so as to be integrated with the left and right side plate portions 3a and 3b and the bottom plate portion 3c of the shape member so as to close between the left and right side plate portions 3a and 3b. The attachment plate portion 3d at the upper end is formed in an arc shape that can come into surface contact with the bottom portion of the pipe member outer peripheral surface of the scaffold plate support member 1, and the attachment plate portion 3d and the bottom portion of the pipe material peripheral wall of the scaffold plate support member 1 Are fixed to each other by two blind rivets 10, and the lower mounting plate portion 3 e is fitted between the left and right side plate portions 2 a and 2 b of the vertical member 2, and the mounting plate portion 5 d of the fitting member 5 With the bottom plate portion 2c of the vertical member 2 in contact with the bottom plate portion 2c of the vertical member 2 It is secured to the lower end of the vertical member 2 with the engaging member 5 by two rivets 11 passing through the three-way overlapping them with each other.

  As shown in FIG. 5, the fitting member 5 is formed by pressing an iron plate into a substantially V-shape in a planar shape, and is a flat groove-shaped reinforcement continuous between the ends of the pair of left and right arm portions 5a and 5b. The mounting rib 5c is integrally formed so as to protrude outward, and the mounting plate 5d is constituted by the bottom plate of the reinforcing rib 5c. Therefore, the head of the rivet 11 that fixes the fitting member 5 to the vertical member 2 is housed in the reinforcing rib 5c.

  The pipe clamp 4 is well known in the art. As shown in FIG. 2, a holding member 4b is pivotally supported by one end of a base portion 4a by a support shaft 4c, and the other end of the base portion 4a is supported by a support shaft 4d. While the fastening bolt 4e pivotally supported is engaged with the free end of the pressing member 4b, the base 4a and the pressing member 4b are clamped by tightening a nut 4f that is screwed into the fastening bolt 4e. The steel pipe P is configured to be clamped. Thus, as shown in FIG. 1, the vertical member 2 has a through screw for mounting formed by a burring tube portion 12 projecting inwardly on the bottom plate portion 2c immediately below the pipe end fitting portion 7 at the upper end thereof. A hole 12a is provided, and the pipe clamp 4 is attached to the vertical member 2 by screwing and fastening the mounting bolt 13 that penetrates the base portion 4a of the pipe clamp 4 from the inside into the mounting through screw hole 12a. However, in order to prevent the pipe clamp 4 from rotating around the mounting bolt 13, as shown in FIG. 1B, the anti-rotation projecting outward from the base portion 4 a of the pipe clamp 4. The protrusion 14 is configured to fit into a rotation-preventing hole 15 provided in the bottom plate portion 2 c of the vertical member 2.

  The scaffolding plate drop stopper protruding piece 6 is provided with a nail hole 6c for fixing a side plate nail on the protruding plate portion 6b protruding upward from the mounting plate portion 6a that closes the pipe outer end portion 1b of the scaffolding plate support member 1. Thus, the bottomed cylindrical projection 6d having a diameter that can be fitted inside the pipe outer end 1b of the scaffolding plate support member 1 is integrally pressed on the mounting plate 6a. At the center of the bottom plate portion of the base plate, if necessary, a through screw hole 16a (corresponding to a mounting through screw hole 12a provided in the vertical member 2) used when attaching a pipe clamp to the outside of the scaffolding plate drop stopper protruding piece 6 is provided. Is formed by a burring tube 16 projecting outward from the bottomed cylindrical projection 6d. Further, as shown in FIG. 4, the attachment plate portion 6a is provided with a detent that serves as a detent for the pipe clamp when the pipe clamp is attached to the outside of the scaffold plate drop-off projection piece 6 by using the through screw hole 16a. A concave portion 17 (corresponding to the anti-rotation hole 15 provided in the vertical member 2) is provided.

  Thus, on the peripheral wall of the pipe outer end 1b of the scaffolding plate support member 1, a bottomed cylindrical projecting portion of the scaffolding plate dropping stopper projecting piece 6 fitted into the pipe outer end 1b of the scaffolding plate support member 1 is provided. A pair of left and right burring cylinder portions 18 projecting inward so as to penetrate the peripheral wall of 6d are formed concentrically with each other, and the pair of left and right burring cylinder portions 18 and the pipe outer end portion 1b of the scaffolding plate support member 1 and the scaffold The plate drop stopper protruding pieces 6 are fixed to each other.

  As described above, the weld bead 1c is present along the axial direction on the inner peripheral surface of the pipe material of the scaffold plate support member 1, and the weld bead 1c is the center of the pipe material of the scaffold plate support member 1. A through hole into which the burring tube portion 9 to which the vertical member 2 is attached and a blind rivet 10 to which the support member 3 is attached is provided. Therefore, the bottomed cylindrical protruding portion 6d of the scaffolding plate drop stopper protruding piece 6 is not a complete cylindrical shape as shown in FIG. 3, but a shape in which the peripheral wall lower portion 6e corresponding to the weld bead 1c is cut into a flat shape. It is molded into. Further, regarding the formation of the pair of left and right burring cylinder portions 18 with respect to the pipe outer end portion 1b of the scaffolding plate support member 1, a small-diameter through hole for forming the burring cylinder portion 18 is formed in the peripheral wall of the pipe outer end portion 1b. In addition, a through-hole having a diameter into which the burring cylinder portion 18 is closely fitted is provided in advance on the peripheral wall of the bottomed cylindrical projection 6d of the scaffolding plate drop stopper projection piece 6. Yes.

  As shown by the phantom lines in FIG. 1, the bracket for supporting a scaffold plate configured as described above is provided on the outside of the building frame constituting the framework scaffold when the auxiliary scaffold is temporarily installed outside the framework scaffold. It can be used by being attached to a steel pipe P. That is, in a state where the fitting member 5 attached to the lower end of the vertical member 2 is fitted to the steel pipe P, the pipe clamp 4 attached to the upper end side of the vertical member 2 is attached to the steel pipe P by a conventionally known method. By fastening at a predetermined height, the scaffolding plate support bracket having the above-described configuration can be attached to the same level of each of the plurality of steel pipes P, and the scaffolding plate can be horizontally supported by the scaffolding plate support member 1 in each bracket. . At this time, the scaffolding plate is supported by the pipe member peripheral surface of the scaffolding plate support member 1 between the scaffolding plate dropping stopper protruding piece 6 and the pipe end fitting portion 7 at the upper end of the vertical member 2. The upper end of the pipe end fitting portion 7 at the upper end of 2, that is, the top plate portion 2 d of the vertical member 2 is formed with a notch portion 8, and the pipe material peripheral surface that supports the scaffold plate of the scaffold plate support member 1 Since the length is extended to the vertical member 2 side (steel pipe P side), a wide scaffold plate can be stably supported without overlapping the top plate portion 2d of the vertical member 2.

  Instead of forming the notch portion 8 in the top plate portion 2d of the vertical member 2, as shown in FIGS. 6 and 7A, the outer diameter of the pipe end fitting portion 7 formed at the upper end of the vertical member 2 is used as a scaffold. The pipe inner end portion 1a of the scaffolding plate support member 1 can be reduced in diameter so that the pipe inner end portion 1a can be fitted into the pipe end fitting portion 7 in the same manner as the pipe member outer diameter of the plate support member 1. Further, as shown in FIGS. 1B and 7A, the vertical member 2 uses a cross-sectional groove-shaped member that is narrower than the lateral width (outer diameter) of the pipe end fitting portion 7 formed at the upper end thereof. However, as shown in FIG. 7B, the vertical member 2 uses a cross-sectional groove-shaped member that is the same as or wider than the lateral width (outer diameter) of the pipe end fitting portion 7 formed at the upper end thereof. You can also. The embodiment shown in FIG. 7B can also be applied to an embodiment in which the notch 8 is formed in the top plate 2d as shown in FIGS.

Fig. A is a partially longitudinal side view, and Fig. B is an enlarged cross-sectional view taken along the line A-A in Fig. A. It is a partially cutaway plan view. It is a BB line expanded sectional view of Drawing 1A. It is a front view. It is the CC sectional view taken on the line of FIG. 1A. It is a partial vertical side view of the principal part which shows a modification. FIG. A is a sectional view taken along the line DD of FIG. 6, and FIG. B is a longitudinal sectional front view of the main part showing still another modification.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Scaffold board support member 1a Pipe inner end part 1b Pipe outer end part 1c Weld bead 2 Vertical members 2a, 2b Left and right side plate parts 2c of the vertical member Bottom plate part 2d of the vertical member Top plate part 3 of the vertical member Support member 4 Pipe clamp 5 Fitting member 6 Scaffold plate drop stopper protruding piece 6d Bottomed cylindrical protruding portion 6e Flat peripheral wall lower portion 7 Pipe end fitting portion 8 Notch portion 9, 12, 16, 18 Burring cylinder portion 10 Blind rivet 11 Rivet 12a, 16a Pipe clamp mounting through screw hole 13 Pipe clamp mounting bolt 15 Pipe clamp anti-rotation hole 17 Pipe clamp anti-rotation recess P Steel pipe

Claims (5)

A scaffold board support bracket comprising a horizontal scaffold board support member, a vertical member depending from an inner end of the scaffold board support member, and a pipe clamp attached to the vertical member, the scaffold board support member Is composed of a round pipe material, the vertical member is composed of a groove-shaped section, and a pipe end fitting portion is formed at the upper end, and the pipe end fitting portion is formed on the left and right side plates of the vertical member. Part and the top plate part that connects between the left and right side plate parts at the upper end of the vertical member, the pipe inner end of the scaffolding plate support member is fitted so that it can only be inserted and removed in the axial direction, In the bracket for supporting the scaffolding plate formed by fixing the pipe end fitting portion and the pipe inner end of the scaffolding plate supporting member fitted thereinto ,
A support member for supporting the scaffold plate support member is installed between the vertical member and the scaffold plate support member, and is fitted from the side to a vertical steel pipe to which the pipe clamp is fastened on the lower end side of the vertical member. A fitting member is attached, and a lower end attachment plate portion of the support member and an attachment plate portion of the fitting member are arranged at the same height on both sides of the bottom plate portion of the vertical member, and by a stopper penetrating these three members A scaffolding plate support bracket in which the support member and the fitting member are fixed to the vertical member .   The bracket for supporting a scaffold plate according to claim 1, wherein a notch portion for expanding a scaffold plate support region in the scaffold plate support member is formed in an upper end top plate portion of the vertical member.   The pipe end fitting portion of the vertical member has the same outer diameter as the pipe outer diameter of the scaffold plate support member, and the pipe inner end portion of the scaffold plate support member is the pipe end fit of the vertical member. The bracket for supporting a scaffolding plate according to claim 1, wherein the bracket is reduced in diameter so as to be fitted into the portion. The pipe inner end portion of the scaffold plate support member and the pipe end fitting portion of the vertical member protrude inward from the peripheral wall of the pipe end fitting portion and penetrate the peripheral wall of the pipe inner end portion of the scaffold plate supporting member. are fixed to each other by burring tubular portion formed to the scaffold plate support bracket according to any one of claims 1 to 3. A scaffolding plate support bracket provided with a scaffolding plate dropping stopper projecting piece at an outer end of the scaffolding plate support member, wherein the scaffolding plate dropping stopper projecting piece has a pipe outer end portion of the scaffolding plate support member. A bottomed cylindrical projecting portion that is fitted into the outer end of the pipe of the scaffolding plate support member is formed on the mounting plate portion to be closed, and protrudes inward from the peripheral wall of the outer end of the pipe of the scaffolding plate supporting member, thereby the scaffolding plate The scaffolding plate support member and the scaffolding plate dropping stopper projecting piece are fixed to each other by a burring tube portion formed so as to penetrate the peripheral wall of the bottomed cylindrical protruding portion of the dropping stopper projection piece. The bracket for supporting a scaffold plate according to any one of 4 .