JP2016000907A - Binding device for wedge binding-type scaffold - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a binding device of a simple structure for a wedge binding-type scaffold.SOLUTION: A binding device for a wedge binding-type scaffold includes a bracket fastened to a support post, and a locking fitting installed at an end of an arm member spanned between two support posts. The bracket is U-shaped when seen in a planar view, and has a central wall inclined downward in a forward direction. The locking fitting comprises a vertically long plate-form wedge and a wedge guiding member. The wedge includes a perpendicular part, a bent part that opens to the left, and a lower edge part. The bent part of the wedge has a rearward horizontal protrusion formed at an upper edge of the perpendicular part, extends downward from the perpendicular part in a bent form that opens to the left, and the lower half of the bent form inclines downward in a forward direction at an almost same angle with the central wall of the bracket. The lower edge part of the wedge inclines downward from the bent part in a rearward direction. The wedge guiding member has a perpendicular wall along which a rim protrudes rearward, the perpendicular wall having a cross section that fits along an outer peripheral surface of the support post. An upper part of the rim in a height direction is fastened to an outer peripheral surface of the arm member on both sides, and a downward stepped part is formed below the portion fastened to the arm member. A lower part of the stepped part pierces through the bracket, and the wedge is fitted such that the lower edge part of the wedge comes in contact with a rear surface at a bottom edge of the rim that protrudes rearward.

Description

  The present invention relates to a binding device in a wedge binding type scaffold.

In this specification, in the relationship between the support column and the arm wood, the front side refers to the side with the support column to be tightened, and the back side refers to the side with the arm wood to be tightened.

  A binding device in a wedge-tightening scaffold previously proposed by the applicant of the present application is disclosed in Patent Document 1 below.

The binding device in this binding-type scaffold is embedded so that the front side is exposed at the end of the arm lumber passed between the support metal and the two support columns fixed to the outer periphery of the predetermined height of the support column, and It consists of a locking bracket that can be locked to the receiving bracket.The receiving bracket is U-shaped when viewed from the plane, and the central wall is inclined forward and downward. A vertical plate-shaped wedge having a front edge with a vertical portion that touches and a rear edge that is inclined to the front and downward at substantially the same inclination as the central wall of the receiving bracket, and a part protruding downward from the arm wood and received when viewed from a plane A wedge guide member with a U-shape that fits into the bracket, the central wall is inclined forward and downward at the same inclination as the receiving bracket, and a wedge guide member that is inserted in a vertically movable manner. It is interposed between the central walls and has a top edge. And a swing bar that is attached to the upper part of the guide member so as to be swingable back and forth, and is provided with a retaining protrusion that protrudes rearward at the lower end part, and is biased toward the wedge side by a push spring, Longitudinal hole with a trailing edge where the wedge escape prevention bar contacts the side walls of the wedge guide member, and the wedge escape prevention bar is the vertical length required for vertical movement of the wedge that only crosses the wedge. Alternatively, a forward notch is formed in the wedge, and the lower part from the arm wood of the wedge guide member is an insertion part to the receiving metal fitting, and the insertion part in the central wall of the wedge guide member has a front and rear penetrating retaining protrusion storage part In the state in which the insertion portion of the wedge guide member is inserted into the receiving metal fitting and the end of the arm lumber is received by the upper end of the receiving metal fitting, the center wall of the receiving metal fitting is opposed to the retaining protrusion receiving hole. Thus, a retaining protrusion receiving portion is formed, and the retaining protrusion receiving portion has an upper edge on which the retaining protrusion is hooked when the locking metal fitting is about to be pulled upward from the receiving metal. , Swings backward against the spring force when tightening and pushes the retaining protrusion into the retaining protrusion receiving part of the metal fitting, and swings forward by the spring force when releasing tightening and receives the retaining protrusion to remove the metal fitting The distance between the central wall of the wedge guide member and the wedge is determined so as to be pulled out from the stop projection receiving portion.

JP 2008-280743 A

According to the device disclosed in Patent Document 1, the end of the arm lumber is directly received at the upper end of the metal fitting, and the arm lumber does not wobble due to the wedge action, so that the arm lumber is held firmly and level, Moreover, even if wind pressure is applied from below using a sheet steel floor cloth, the retaining protrusion on the side of the locking bracket will catch on the upper edge of the retaining protrusion receiving portion of the receiving bracket. There is an advantage that there is no risk of detachment and a cloth with a floor made of a thin steel plate rather than an expanded metal can be used, but the structure is slightly complicated.

An object of the present invention is to provide a binding device in a wedge-type scaffold having a simple structure.

The binding device in the wedge-binding scaffold according to the first aspect of the present invention includes a receiving metal member fixed to the outer periphery of a predetermined height of the support column and a locking metal member provided at an end portion of the arm wood passed between the two support columns. The receiving bracket is U-shaped when viewed from the plane, and the central wall is inclined forward and downward, and the locking bracket is formed with a rearward horizontal protrusion at the upper end of the vertical portion and downward from the vertical portion. In the shape of a vertically elongated plate, the lower half of the inverted V-shaped portion has a reverse-shaped portion inclined forward and downward at substantially the same inclination as the central wall of the receiving metal fitting, and a lower end inclined further downward and downward. A wedge, a cross section is on the outer peripheral surface of the support column, and a vertical protruding wall is provided on the vertical wall, and the upper part of the height of the peripheral edge is projected in an arc shape on the outer periphery of the arm lumber. Affixed to both sides and received under A downward step that is hooked on the central wall of the tool is formed, and the lower part of this is a receiving metal penetrating part with a length that penetrates the receiving metal and protrudes downward. And a wedge guide member whose lower end can be brought into contact with the rear surface of the lower end of the peripheral wall.

According to a second aspect of the present invention, in the binding device in the wedge-tightening type scaffold according to the first aspect, the rearward horizontal protruding portion of the wedge protrudes from the rear protruding peripheral edge of the wedge guide member to such an extent that it can be hit with a hammer.

The binding device in the wedge-binding scaffold according to the first aspect of the present invention includes a receiving metal member fixed to the outer periphery of a predetermined height of the support column and a locking metal member provided at an end portion of the arm wood passed between the two support columns. The receiving bracket is U-shaped when viewed from the plane, and the central wall is inclined forward and downward, and the locking bracket is formed with a rearward horizontal protrusion at the upper end of the vertical portion and downward from the vertical portion. The lower half of the upside-down shape has a reverse-shaped portion having a lower half inclined forward and downward with substantially the same inclination as the central wall of the receiving metal fitting, and a lower end portion inclined further downward and downward. A vertical plate-shaped wedge, a cross section is provided on the outer peripheral surface of the support column, and a vertical protruding peripheral edge is provided on the vertical wall, and an upper portion of the peripheral height is projected in an arc shape on the outer periphery of the arm lumber. Affixed to both sides of arm lumber and below A downward stepped portion that is hooked on the center wall of the bracket is formed, and the lower part of the bracket has a length that penetrates the bracket and protrudes downward, so that the wedge can be moved up and down. Between the rearward horizontal protruding portion of the upper end of the wedge and the rear protruding peripheral edge of the wedge guide member. When the wedge is pushed down with the tip of the herring inserted, the vertical part of the wedge comes into close contact with the vertical part of the wedge guide member, and the lower half of the reverse letter of the wedge comes into close contact with the central wall of the bracket. The wedge is kept in the lowered state by the lower end portion inclined further downwardly coming into contact with the rear surface of the rearward protruding peripheral edge of the receiving metal fitting. As a result, the arm lumber does not wobble due to the wedge action, so the arm lumber is kept firmly level, and even if wind pressure is applied to it from below using a sheet steel cloth cloth, There is no risk that the fastener will fall out of the catch. Therefore, there is an advantage that a cloth with a floor made of a thin steel plate, not an expanded metal, can be used regardless of its simple structure.

In the binding device in the wedge binding type scaffold according to the invention of claim 2, the rearward horizontal protruding portion of the wedge protrudes from the peripheral edge of the wedge guide member to such an extent that it can be hit with a hammer. Can be pushed down.

It is a horizontal sectional view showing the state just before binding arm wood to a support. It is the side view of FIG. 1 which notched the front end part of the arm timber containing the wedge guide member which shows the state immediately before binding an arm timber to a support | pillar. It is the side view which notched the front end part of the arm lumber including the receiving metal fitting which shows the state which put the locking metal fitting in the metal fitting, and received the downward stepped part on the central wall of the metal fitting, and the wedge guide member. FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. 3. It is the side view which notched the front end part of the arm timber containing the receiving metal fitting and wedge wedge which show the state which lifts a wedge.

The binding device in the wedge-binding scaffold shown in FIG. 1 to FIG. 5 is a brace (2) fixed to the outer periphery of a predetermined height of the support column (1) and the arm wood passed between the two support columns (1). It consists of a locking bracket (4) provided at the end of (3), and the receiving bracket (2) is U-shaped when viewed from the plane, with the central wall (5) inclined forward and downward. The metal fitting (4) is formed with a rearward horizontal protruding portion (7) at the upper end of the vertical portion (6) and in the shape of a letter extending downward from the vertical portion (6) in the center wall of the receiving metal fitting (2) ( 5) A vertically long wedge having a reverse-shaped portion (9) having a lower half (8) inclined forward and downward with substantially the same inclination and a lower end portion (10) inclined downward and further downward (11) and the vertical section (13) is provided on the outer peripheral surface of the column (1) and the rear projecting peripheral edge (13) is provided on the outer peripheral surface of the support pillar (1). ) In this way, a downward stepped portion (14) is formed which is fixed to both sides of the outer periphery of the arm lumber (3) and is hooked to the central wall (5) of the receiving metal fitting (2). The lower part of this is a receiving metal insertion part (15) having a length that penetrates the receiving metal (2) and projects downward therefrom, and the wedge (11) is fitted in a vertically movable manner, and its lower end. (10) consists of a wedge guide member (16) adapted to come into contact with the rear surface of the lower end of the peripheral wall (13).

To fasten the arm wood (3) to the support post (1) from the state immediately before the arm wood (3) is fastened to the support post (1) shown in FIGS. 1 and 2, as shown in FIG. Insert the locking bracket (4) provided at the end of the arm lumber (3) into the bracket (2), and insert the tip of the shino (17) into the rearward horizontal projection (7) of the wedge (11) and the wedge guide. The wedge (11) is pushed down by raising the hand (17) near the rear protruding peripheral edge (13) of the member (16). The wedge (11) may be pushed by hitting the rearward horizontal protrusion (7) of the wedge (11) with a hammer without using the shino (17). Then, the vertical portion (6) of the wedge (11) is in close contact with the vertical portion (12) of the wedge guide member (16), and the lower half (8) of the inverted character (9) of the wedge (11) is The lower end (10), which is in close contact with the central wall (5) of the metal fitting (2) and which is inclined downward and rearwardly, comes into contact with the rear surface of the lower edge of the rear protruding edge (13) of the metal fitting (2). The wedge (11) is kept in the lowered state. As a result, the arm wood (3) does not wobble due to the wedge action, so that the arm wood (3) is kept firmly level.

To remove the arm lumber (3) tightly attached to the support post (1), as shown in FIG. 5, the tip of the shrimp (17) is connected to the rearward horizontal protrusion (7) of the wedge (11) and the arm lumber ( Since the wedge (11) can be lifted up by raising the hand side of the peg (17) between 3), it was provided at the end of the arm lumber (3) from the catch metal (2) What is necessary is just to pull out a locking metal fitting (4) upwards.

(1) Prop
(2) Bracket
(3) Arm wood
(4) Locking bracket
(5) Center wall of the bracket
(6) Vertical part of locking bracket
(7) Backward horizontal protrusion of the locking bracket
(8) Lower half of the upside-down character part extending downward from the vertical part of the locking bracket
(9) Reversed character that extends downward from the vertical part of the locking bracket
(10) Lower end inclined downward from the lower half of the inverted character
(11) Wedge
(12) Vertical wall of wedge guide member
(13) Backward protruding peripheral edge of wedge guide member
(14) Downward stepped portion of wedge guide member
(15) Receptor insertion part of wedge guide member
(16) Wedge guide member

The binding device in the wedge-binding scaffold according to the first aspect of the present invention includes a receiving metal member fixed to the outer periphery of a predetermined height of the support column and a locking metal member provided at an end portion of the arm wood passed between the two support columns. The receiving bracket is U-shaped when viewed from the plane, and the central wall is inclined forward and downward, and the locking bracket is formed with a rearward horizontal protrusion at the upper end of the vertical portion and downward from the vertical portion. In the shape of a vertically elongated plate, the lower half of the inverted V-shaped portion has a reverse-shaped portion inclined forward and downward at substantially the same inclination as the central wall of the receiving metal fitting, and a lower end inclined further downward and downward. A wedge, a cross section is on the outer peripheral surface of the support column, and a vertical protruding wall is provided on the vertical wall, and the upper part of the height of the peripheral edge is projected in an arc shape on the outer periphery of the arm lumber. Affixed to both sides and received under A downward step that is hooked on the central wall of the tool is formed, and the lower part of this is a receiving metal penetrating part with a length that penetrates the receiving metal and protrudes downward. And a wedge guide member whose lower end can come into contact with the rear surface of the rear projecting peripheral lower end.

The binding device in the wedge-binding scaffold according to the first aspect of the present invention includes a receiving metal member fixed to the outer periphery of a predetermined height of the support column and a locking metal member provided at an end portion of the arm wood passed between the two support columns. The receiving bracket is U-shaped when viewed from the plane, and the central wall is inclined forward and downward, and the locking bracket is formed with a rearward horizontal protrusion at the upper end of the vertical portion and downward from the vertical portion. The lower half of the upside-down shape has a reverse-shaped portion having a lower half inclined forward and downward with substantially the same inclination as the central wall of the receiving metal fitting, and a lower end portion inclined further downward and downward. A vertical plate-shaped wedge, a cross section is provided on the outer peripheral surface of the support column, and a vertical protruding peripheral edge is provided on the vertical wall, and an upper portion of the peripheral height is projected in an arc shape on the outer periphery of the arm lumber. Affixed to both sides of arm lumber and below A downward stepped portion that is hooked on the center wall of the bracket is formed, and the lower part of the bracket has a length that penetrates the bracket and protrudes downward, so that the wedge can be moved up and down. And a wedge guide member whose lower end is in contact with the rear surface of the lower edge of the rearward projecting peripheral edge, the rearward horizontal projection of the upper end of the wedge and the rearward projecting shape of the wedge guide member When the wedge is pushed down by inserting the tip of the wedge between the peripheries, the vertical part of the wedge is in close contact with the vertical part of the wedge guide member, and the lower half of the reverse letter of the wedge is in close contact with the central wall of the receiving bracket, The wedge is kept in the lowered state by the lower end portion inclined downwardly coming in contact with the rear surface of the rearward protruding peripheral edge of the metal fitting. As a result, the arm lumber does not wobble due to the wedge action, so the arm lumber is kept firmly level, and even if wind pressure is applied to it from below using a sheet steel cloth cloth, There is no risk that the fastener will fall out of the catch. Therefore, there is an advantage that a cloth with a floor made of a thin steel plate, not an expanded metal, can be used regardless of its simple structure.

The binding device in the wedge-binding scaffold shown in FIG. 1 to FIG. 5 is a brace (2) fixed to the outer periphery of a predetermined height of the support column (1) and the arm wood passed between the two support columns (1). It consists of a locking bracket (4) provided at the end of (3), and the receiving bracket (2) is U-shaped when viewed from the plane, with the central wall (5) inclined forward and downward. The metal fitting (4) is formed with a rearward horizontal protruding portion (7) at the upper end of the vertical portion (6) and in the shape of a letter extending downward from the vertical portion (6) in the center wall of the receiving metal fitting (2) ( 5) A vertically long wedge having a reverse-shaped portion (9) having a lower half (8) inclined forward and downward with substantially the same inclination and a lower end portion (10) inclined downward and further downward (11) and the vertical section (13) is provided on the outer peripheral surface of the column (1) and the rear projecting peripheral edge (13) is provided on the outer peripheral surface of the support pillar (1). ) In this way, a downward stepped portion (14) is formed which is fixed to both sides of the outer periphery of the arm lumber (3) and is hooked to the central wall (5) of the receiving metal fitting (2). The lower part of this is a receiving metal insertion part (15) having a length that penetrates the receiving metal (2) and projects downward therefrom, and the wedge (11) is fitted in a vertically movable manner, and its lower end. (10) consists of a wedge- shaped guide member (16) adapted to come into contact with the rear surface of the rear projecting peripheral edge (13) lower end.

Claims (2)

  It consists of a bracket fixed to the outer periphery of the column with a predetermined height and a locking bracket provided at the end of the arm lumber passed between the two columns. The wall is slanted forward and the locking bracket is formed with a rearward horizontal protrusion at the top of the vertical portion and the lower half extends downward from the vertical portion to the center of the receiving bracket. A vertical plate-shaped wedge having a reverse-shaped portion inclined forward and downward at substantially the same inclination as the wall, and a lower end inclined further downward, and a vertical cross-section on the outer peripheral surface of the column. A rear projecting peripheral edge is provided, and an upper portion of the peripheral height is projected in an arc shape so as to be on the outer periphery of the arm lumber, and is fixed to both outer peripheries of the arm lumber. When a downward step is formed that is hooked on In addition, the lower part is formed as a receiving metal penetrating portion having a length that passes through the receiving metal and protrudes downward, so that the wedge can be freely moved up and down and the lower end can be in contact with the rear surface of the lower end of the peripheral wall. A binding device for a wedge-type scaffold comprising a wedge guide member. 2. The binding device for a wedge-binding scaffold according to claim 1, wherein the rearward horizontal protruding portion of the wedge protrudes from the periphery of the wedge guide member to such an extent that it can be hit with a hammer.

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