JP2008261150A - Bracket for temporary scaffolding - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bracket for temporary scaffolding, which is for use in avoiding projection portion, and in which connection holes formed therein for fixing a support pipe thereto, are simplified to improve the workability. <P>SOLUTION: According to the structure of the bracket 20, a cylinder portion 22 is formed at the tip of a horizontal member 21 of the bracket 20, and a movable cylinder 27 is slidably fitted into the cylinder portion 22 in a vertically movable manner. The movable cylinder 27 has a ring 28 formed thereon and the connection holes 29 formed therein for supporting the support pipe, and projections 31 of a lock pin 30 are exposed from the connection holes 29, respectively. On the other hand the cylinder portion 22 has an almost inverted L-shaped guide hole 36 formed in a peripheral surface thereof, and the movable cylinder 27 is guided via a guide pin 37 into the guide hole 36, and moved in the same, to be held either a first rotation location on a lower side or a second rotation location on an upper side. By virtue of this structure, the bracket need not form two types of connection holes different in height unlike in a conventional bracket. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

The present invention is used to connect a column of a temporary scaffold upward while avoiding the protrusion when a temporary scaffold is constructed along an outer wall of a building having a protrusion such as a veranda, eaves, or a fence. The present invention relates to a bracket for a temporary scaffold.

  Conventionally, temporary scaffolds for work are installed between pillars that are erected in two rows inside and outside at predetermined intervals along the periphery of the building, brackets that are built between adjacent pillars, and adjacent brackets. The basic structure is a tread board. The struts constituting the temporary scaffold are configured by connecting strut pipes made of metal pipes in series. The strut pipe normally used in Japan has a first tightening holder formed at a position opposed to 180 degrees, a vertical shift from the first tightening holder in the vertical direction, and a 90-degree phase shift in the circumferential direction. And a second tightening holder formed on the outer periphery. In addition, a connection tenon is formed at one end of the support pipe for vertical connection, and the insertion part on the lower end side of the pipe is removed from the connection tenon arranged upward when connecting a plurality of pipes in series. The strut is constructed so that a pin and a built-in lock pin with spring property are passed through between the connecting tenon and the connecting hole where the connecting portion overlaps.

By the way, when constructing the above temporary scaffolding, if the building has a protruding part protruding from its outer wall such as a veranda, eaves, eaves, etc. It is conceivable to attach a bracket 101 as shown in FIG. A tenon portion 103 is formed at the tip of the horizontal member 102 of the bracket 101, and an insertion portion 106 on the lower end side of the support pipe 105 is fitted on the tenon portion 103. In the horizontal member 102, the wedge piece 107 is locked to one of two types of binding holders 108 and 109 having different heights on the base end side. By using such a bracket 101, it is possible to construct the column by moving the column pipe 105 outward so as to avoid the protruding portion (for example, the hook 110).
However, as described above, the support pipes 105 are formed with the fastening holders 108 and 109 which are 90 degrees out of phase in the circumferential direction and have different heights. For this reason, the height of the bracket 101 varies depending on the difference between the fastening holders 108 and 109 to which the wedge pieces 107 are locked, and the position of the tenon portion 103 changes depending on the fastening holders 108 and 109. As a result, since the height of the support pipe 105 fitted to the tenon portion 103 is not constant, there is a possibility of hindering the installation of the footboard.
Thus, a technique of a bracket having a collar capable of height adjustment as disclosed in Patent Document 1 is disclosed. In the bracket of Patent Document 1, the collar is arranged at two levels in the vertical direction to change the lower end position of the column supported by the bracket so that two types of tightening holders having different heights (referred to as connecting brackets in Patent Document 1) are used. It is to make it correspond.
Japanese Patent No. 3733303

By the way, in the bracket of Patent Document 1, it is necessary to provide a first connection hole and a second connection hole formed at different positions in the upper and lower heights in the tenon member in order to fix the support pipe at two levels in the vertical direction. is there. FIGS. 8A and 8B are explanatory diagrams of the relevant part of Patent Document 1. FIG. As shown in the figure, the connecting hole 125 on the strut pipe 123 side is replaced with the first or second connecting hole 120 on the tenon member 124 side in a state where the strut pipe 123 is externally fitted to the tenon member 124 according to the position of the collar 122. , 121 are collated with each other, and the support pipe 123 is fixed to the tenon member 124 through the locking member.
There are generally two types of locking members: a method using a leaf spring type lock pin 126 built in a pipe and a method using a locking pin 127 inserted by an operator from the outside. The lock pin method is widely used for ease of work.

However, as shown in the figure, it is impossible to dispose the lock pins 126 in both the first and second connection holes 120 and 121 due to structural limitations of the support pipe 123. In the bracket, the locking pin 127 must still be used for one of the connection holes 120 and 121. For this reason, workability when setting a bracket used to avoid this kind of protrusion is poor.
The present invention has been made paying attention to such problems existing in the prior art. An object of the present invention is to provide a bracket for a temporary scaffold that improves the workability by simplifying the connecting hole for fixing the column pipe in the bracket used to avoid the protruding portion. .

  In order to achieve the above object, according to the first aspect of the present invention, there is provided a first fastening holder formed at a position opposed to 180 degrees, and being shifted from the first fastening holder by a substantially vertical width in the vertical direction. A second binding holder formed at a position shifted by 90 degrees in the circumferential direction is provided on the outer periphery, and the insertion portion on the lower end side of the pipe is removed from the connecting tenon arranged upward when connecting a plurality of the holders in series. A strut pipe for a temporary scaffolding that is constructed so that a locking member is made to cross between the connecting tenon and the overlapping connecting hole of the insertion portion, and the strut pipe is moved upward along the outer wall of the building. In the bracket for a temporary scaffold used to connect the support pipe further upward while avoiding the protruding portion projecting outward from the outer wall of the building when connecting a plurality of the above, the first or second fastening holder Cantilever An outwardly projecting material that is supported in a beam shape, an exterior cylinder that is attached to the projecting material, and a tenon member that is loosely fitted in the exterior cylinder and can be moved up and down. A support portion for supporting the column pipe that is externally fitted when the insertion portion of the column pipe is externally fitted from above, a connection hole that overlaps the connection hole on the insertion portion side, and the exterior cylinder. On the other hand, position holding means for enabling the tenon member to be held at the first rotation position on the lower side and the second rotation position on the upper side are provided, and the second rotation position is the same as the first rotation position and the second rotation position. The vertical distance from the rotational position coincides with the substantial vertical width shift of the first or second binding holder, and the phase between the first rotational position and the second rotational position is 90 degrees shifted. Is the gist.

Further, the gist of the invention of claim 2 is that, in addition to the configuration of the invention of claim 1, the tenon member is restricted from rotating in the circumferential direction at the first and second rotational positions.
Further, in the invention of claim 3, in addition to the configuration of the invention of claim 1 or 2, the position holding means includes a guide hole having a substantially inverted L shape formed on the peripheral wall of the outer cylinder by press working. The gist of the present invention is that it is composed of guide pins protruding on the peripheral surface of the tenon so as to be arranged inside the guide hole.
Moreover, in addition to the structure of the invention in any one of Claims 1-3, in the invention of Claim 4, the said support part doubles as the drop-off prevention member which prevents the fall of the tenon member from the said exterior cylinder. The gist of this is

In such a configuration, when the bracket is attached to avoid the projecting portion of the building, the first tenon holder firstly supports the overhanging material, so that the tenon member is the first lower side of the outer cylinder. It arrange | positions in a rotation position and a support | pillar pipe is externally fitted here. On the other hand, when the overhanging material is supported by the second binding holder, the tenon member is disposed at the second rotational position on the upper side with respect to the outer cylinder, and the support pipe is externally fitted thereto. The tenon member has a vertical gap of 90 degrees at the first rotational position and the second rotational position, and the phase difference is the same as that of the vertical width of the first or second binding holder. In other words, the tenon member is moved by a movement amount corresponding to the shift in the vertical direction of the first and second binding holders of the support pipe and the shift in the circumferential direction. At this time, the insertion portion of the column pipe that is externally fitted to the tenon member is always supported by the same support portion, and the connection hole on the insertion portion side is always collated with the same connection hole on the tenon member side. This eliminates the need for providing two types of connecting holes having different heights as in the prior art.
In addition, since the member used for the temporary scaffolding is not required to be so accurate, the tolerance is relatively large, and in the above-mentioned wording, “matches the displacement of the first or second binding holder by the substantially vertical width” or “ There may be a slight error with respect to the coincidence in the case where the phase between the first rotational position and the second rotational position is shifted by 90 degrees or an angle of 90 degrees.

  The tenon member is preferably restricted from rotating in the circumferential direction at the first and second rotational positions from the viewpoint of work such as attachment of the support pipe. Further, the position holding means includes a guide hole having a substantially inverted L shape formed on a peripheral wall of the exterior cylinder, and a guide pin projecting on the peripheral surface of the tenon so as to be disposed inside the guide hole. It is preferable from the point of quick rotation of the tenon member and rotation restriction. It is preferable that the support portion also serves as a drop-off preventing member that prevents the tenon member from dropping downward from the outer tube. Further, the support portion does not protrude outward from the outer cylinder or does not protrude larger than the outer cylinder, and is a ring body having an outer diameter substantially the same as the outer diameter of the outer cylinder, and the outer cylinder at the second rotation position of the tenon member. It is preferable to be placed on the upper edge.

  In the invention of each of the above claims, the connection hole formed in the insertion portion of the support pipe can always be collated with the same connection hole of the tenon member regardless of whether the bracket is attached to either the first or second binding holder. Workability is improved.

Hereinafter, an embodiment of the bracket of the present invention will be described with reference to the drawings.
As shown in FIG. 5, a temporary scaffold 11 is constructed around the outer wall 10 of the building indicated by a two-dot chain line. An eave 10a as a protruding portion is provided at an upper position of the building so as to project outward from the outer wall 10. FIG. 1 specifically shows the vicinity of the eaves 10a. The temporary scaffold 11 is constructed of a basic skeleton by a support column 12 and a horizontal member 13, and the bracket 20 of the embodiment is disposed so as to avoid this particularly at a location corresponding to the eave 10a.

As shown in FIGS. 1 to 3, the bracket 20 includes a horizontal member 21 made of a metal pipe arranged in the horizontal direction, and a cylindrical portion 22 as an outer cylinder fixed to the tip of the horizontal member 21. The horizontal member 21 is brought into contact with the side surface of the cylindrical portion 22 in an orthogonal manner. A wedge piece 23 is fixed to the base end portion of the horizontal member 21.
A reinforcing member 24 made of a metal plate is disposed on the lower surface of the intermediate portion of the horizontal member 21 so as to extend obliquely downward toward the base end portion of the horizontal member 21 with the connecting position with the horizontal member 21 as a base. A backing plate 25 is fixed to the tip of the reinforcing member 24. Between the horizontal member 21 and the reinforcing member 24, an interval holding member 26 made of a metal plate is installed so as to extend in the vertical direction, and the interval between the horizontal member 21 and the reinforcing member 24 is kept constant. ing. The cylindrical portion 22, the wedge piece 23, the reinforcing member 24, the contact plate 25, and the spacing member 26 are fixed by welding.

  A movable cylinder 27 as a tenon member is loosely fitted in the cylinder portion 22 so as to be movable up and down. As shown in FIG. 1, the movable cylinder 27 is formed in a cylindrical shape having a circular cross section that is slightly smaller than the cylindrical portion 22, and the upper peripheral surface is subjected to a squeezing process to be reduced in diameter. A ring 28 serving as a drop-off prevention member and a support pipe support is fixed to a position slightly above the longitudinal center of the cylindrical portion 22. The outer diameter of the ring 28 substantially matches the outer diameter of the cylindrical portion 22. A pair of connecting holes 29 are formed at a position intermediate between the ring 28 and the upper end of the moving cylinder 27 and facing 180 degrees. Inside the movable cylinder 27, a lock pin 30 as a locking member composed of a leaf spring is mounted. The lock pin 30 is formed by integrally connecting two leg portions 30a and a connecting portion 30b for connecting both the leg portions 30a at the upper end, and is introduced into the inside from the upper end opening of the movable cylinder 27. It has become. A protruding portion 31 is formed on the outer side near the lower end of the leg portion 30 a, and the protruding portion 31 is exposed from both connecting holes 29 in a state where the lock pin 30 is mounted in the movable cylinder 27. A portion above the ring 28 of the movable cylinder 27 is an insertion portion 32 that is accommodated in a support pipe 50 described later.

As shown in FIGS. 1 to 6, the peripheral wall of the cylindrical portion 22 extends in the vertical direction, further extends in the circumferential direction from its upper end, and further expands slightly downward from the tip extending in the circumferential direction. A pair of guide holes 36 are formed. These guide holes 36 are set so that the length in the vertical direction is substantially the same as the vertical width deviation (height difference) of the first or second binding holders 55 and 56 described later. Further, the guide hole 36 has a circumferential length set so that the rotation amount (amplitude) of the movable cylinder 27 with respect to the cylinder portion 22 is 90 degrees. The guide holes 36 are formed by punching the peripheral wall of the cylindrical portion 22 by pressing, and are arranged so as to have a point-symmetrical positional relationship with respect to the axis of the cylindrical portion 22.
The lower end edge portion of the hole extending in the vertical direction of the guide hole 36 and the portion bulging downward from the distal end extending in the circumferential direction are set as first and second rotation restricting portions 34a and 34b, respectively.

  As shown in FIG. 1, a pair of insertion holes 35 are provided at positions substantially opposed to the longitudinal center of the peripheral wall of the movable cylinder 27 at 180 degrees. A straight line connecting the centers of both insertion holes 35 is orthogonal to a straight line P connecting the centers of the two connection holes 29. A shaft portion 37 a that forms a rod shape of the guide pin 37 is inserted through the insertion hole 35 from the outside through the guide hole 36 in a state where the movable cylinder 27 is fitted in the cylinder portion 22. The guide pin 37 has a disc-shaped head portion 37b at one end portion of the shaft portion 37a. The head portion 37b does not enter the inside of the guide hole 36 and is positioned on the outer peripheral surface of the cylindrical portion 22. It is configured as follows. The guide pin 37 is fixed to the cylindrical portion 22 by caulking and crushing the small ring 30c at the other end in a state where the shaft portion 37a of the guide pin 37 is inserted into the insertion hole 35. Exit from the portion 22 is restricted. Further, the shaft portion 37 a of the guide pin 37 in a state of being fixed to the cylindrical portion 22 protrudes from the peripheral surface of the cylindrical portion 22 so that both end portions thereof are located inside the respective guide holes 36.

  As shown in FIGS. 6A to 6D, the movable cylinder 27 is configured to be able to rotate and move up and down with respect to the cylinder portion 22 while being guided by the guide hole 36 and the guide pin 37. Yes. As shown in FIGS. 2 to 4A and 4B, the relative position relationship of the movable cylinder 27 with respect to the cylinder portion 22 is such that the guide pin 37 is held in the first rotation restricting portion 34 a of the guide hole 36. In other words, the state in which the ring 28 of the moving cylinder 27 is placed on the upper end of the cylinder portion 22 is the state in which the moving cylinder 27 is lowered most. The case where the guide pin 37 is held in the second rotation restricting portion 34b of the guide hole 36 is the highest state. When moving up and down, the movable cylinder 27 is rotated 90 degrees with respect to the cylindrical portion 22. The position where the guide pin 37 is held by the first rotation restricting portion 34a corresponds to the first rotation position, and the position where the guide pin 37 is held by the second rotation restricting portion 34b corresponds to the second rotation position. To do. The guide hole 36, the first and second rotation restricting portions 34a and 34b, the insertion hole 35, the guide pin 37 and the like constitute position holding means. When the movable cylinder 27 is rotated and moved up and down in the cylinder portion 22 by this position holding means, the position is held at the first rotation position and the second rotation position.

Next, the mounting method and operation of the bracket 20 will be described.
First, an outline of the support pipe 50 to which the bracket 20 is attached will be described. The support pipes 50 are connected in series to form the support 12. In this embodiment, when the support pipe 50 is added upward, the upper end of the support pipe 50 reaches the eave 10a (or very close) as shown in FIG. When this becomes impossible, the bracket 20 is connected to the first or second binding holders 51 and 52 of the support pipe 50 in order to avoid the eaves 10a.
The support pipe 50 is an alloy pipe member, and a connecting tenon 52 having a size slightly smaller than the pipe main body 51 is fitted and fixed to the upper end portion of the pipe main body 51. The cross-sectional shape of the connecting tenon 52 substantially matches the cross-sectional shape of the moving cylinder 27. On the outer periphery of the pipe body 51, tightening positions 53 are provided at predetermined intervals. The tightening position 53 is a pair of first tightening holders 55 disposed at the same height so as to face each other at 180 degrees, and the first tightening holders 55 are vertically shifted from both the first tightening holders 55 while being vertically displaced. And a pair of second tightening holders 56 arranged at the same height so as to be shifted by 90 degrees in the circumferential direction and opposed to each other by 180 degrees. In this embodiment, for example, the vertical displacement between the first binding holder 55 and the second binding holder 56 is about 4.5 cm. In the present embodiment, the holder disposed on the upper side is a first binding holder 55. In the pipe body 51 and the connection tenon 52, connection holes 57 are formed at equal distances from the end portions. The lock pin 30 described above is built in the connection tenon 52, and the protrusion 31 of the lock pin 30 is exposed from the connection tenon 52.
That is, the column 12 is constructed while the pipe body 51 and the connection tenon 52 of the adjacent column pipe 50 are joined and the connection hole 57 is collated, and the both are fixed by the lock pin 30. At this time, a portion closer to the tip of the pipe body 51 into which the connecting tenon 52 is inserted is used as an insertion portion. The length from the tip of the connection tenon 52 to the connection hole 57 in the support pipe 50 is substantially the same as the length from the tip of the movable cylinder 27 to the connection hole 29. Further, the length of the connecting tenon 52 substantially matches the length from the tip of the movable cylinder 27 to the upper surface of the ring 28.

  When the bracket 20 is connected to the column pipe 50 configured in this way, first, the wedge piece of the horizontal member 21 is brought into contact with the peripheral surface of the column pipe 50 (column 12) while the contact plate 24 of the reinforcing member 24 is brought into contact with the peripheral surface of the column pipe 50 (column 12). 23 is engaged with the first or second binding holders 55 and 56, and the horizontal member 21 is temporarily fixed to the support pipe 50. Thereafter, the wedge piece 23 is fastened to the first or second fastening holders 55, 56 using a hammer or the like, so that the horizontal member 21 is against the support pipe 50, the wedge piece 23, the reinforcing member 24, and the spacing member 25. The bracket 20 is connected to one support pipe 50. In this state, a new support pipe 50 can be connected to the movable cylinder 27 at the tip of the bracket 20.

As shown in FIG. 2, when the bracket 20 is connected to the upper first binding holder 55, as shown in FIG. 4 and FIG. 37 is arranged in the first rotation restricting portion 34 a of the guide hole 36. At this time, as shown in FIG. 4A, the direction of the connecting hole 29 (straight line P (see FIG. 1)) coincides with the longitudinal direction of the horizontal member 21 of the bracket 20.
A new support pipe 50 is externally fitted to the movable cylinder 27 in such an arrangement state. Then, the lower end of the pipe body 51 is just brought into contact with the upper surface of the ring 28, and the entire insertion portion 32 is stored near the tip (insertion portion) of the pipe body 51. In this state, the strut pipe 50 is moved and adjusted in the circumferential direction, and the connecting holes 29 and 57 of both are collated. Then, the protrusion 31 exposed from the connection hole 29 on the movable cylinder 27 side engages with the connection hole 57 on the support pipe 50 side, and the support pipe 50 is fixed. The horizontal position of the new support pipe 50 that is externally fitted to the movable cylinder 27 in such an arrangement state is added to the horizontal position of the adjacent support pipe 50 shown by the phantom line in FIG. It will match the position.

On the other hand, as shown in FIG. 3, when the bracket 20 is connected to the lower second binding holder 56, the movable cylinder 27 is at the highest position as shown in FIG. 4 and FIG. That is, the guide hole 36 is disposed in the second rotation restricting portion 34b. At this time, if the moving cylinder 27 is in the lowest position as shown in FIG. 6A, it is moved to the highest position by the following operation. First, the guide pin 37 is moved upward as shown in FIG. 6B from the state of FIG. 6A (the moving cylinder 27 is lifted straight), and then rotated 90 degrees as shown in FIG. As shown in FIG. 6 (d), the movable cylinder 27 is disposed so as to drop into the second rotation restricting portion 34 b of the guide hole 36. In this state, as shown in FIG. 4B, the direction of the connecting hole 29 (straight line P (see FIG. 1)) is orthogonal to the longitudinal direction of the horizontal member 21 of the bracket 20.
A new support pipe 50 is externally fitted to the movable cylinder 27 in such an arrangement state. Then, the lower end of the support pipe 50 is just brought into contact with the upper surface of the ring 28, and the entire insertion portion 32 is housed near the tip of the pipe body 51 of the support pipe 50 (insertion portion). However, the circumferential position of the pipe body 51 with respect to the cylindrical portion 22 is 90 degrees out of phase with the above. The horizontal position of the new strut pipe 50 that is externally fitted to the movable cylinder 27 in such an arrangement state is added to the horizontal position of the adjacent strut pipe 50 shown by the phantom line in FIG. It will match the position.
As described above, even when the bracket 20 is connected to the upper first fastening holder 55 shown in FIG. 2 or when the bracket 20 is connected to the lower second fastening holder 56 shown in FIG. In any case, it is possible to make the horizontal position of the column pipe 50 newly added by bypassing the adjacent column pipe 50 equal. Therefore, the horizontal member 13 can be installed horizontally between the adjacent support pipes 50 at all times.

By configuring as described above, the bracket 20 of the present embodiment has the following effects.
(1) According to the bracket 20 of the above-described embodiment, when the movable cylinder 27 is mounted on the first or second binding holders 55 and 56 having different heights, the movable cylinder 27 is moved to the lower first rotation position and the upper first rotation position. Therefore, it is possible to appropriately change the height of the column pipe 50 that is detoured and newly added according to the direction of the column pipe 50 that constructs the construction scaffold 11. Easy to do.
(2) Even if the height position of the column pipe 50 to be newly added by turning is changed, the column pipe 50 is always in contact with the upper surface of the ring 28 with respect to the movable cylinder 27 so that the entire insertion portion 32 is entirely connected to the pipe body. It is to be fitted so as to be housed near the tip of 51 (insertion portion). That is, the lock pin 30 as the locking member can always engage with the same connecting hole 57 and fix the support pipe 50 even if the height position of the support pipe 50 is changed. There is no need to provide two different types of connecting holes.
(3) A substantially inverted L-shaped guide hole 36 is formed in the cylindrical portion 22, and the movable cylinder 27 can be moved up and down and rotated quickly and accurately by the guide hole 36 and the guide pin 37. It can be done quickly. In addition, once the guide pin 37 is disposed in the first and second rotation restricting portions 34a and 34b, the movable cylinder 27 cannot be relatively rotated with respect to the cylinder portion 22, and thus moves unnecessarily during the operation. The cylinder 27 does not move in the circumferential direction.
(4) Both the ring 28 and the guide pin 37 reliably prevent the moving cylinder 27 from dropping downward with respect to the cylinder portion 22.

It should be noted that the present invention can be modified and embodied as follows.
-It is not limited to the guide hole 36 of the shape of the said Example.
In the above description, the lock pin 30 is used as the locking member, but it is also possible to use the locking pin 127 as in the conventional example.
-The shape of the ring 28 is not limited to the above.
-The shape of the horizontal member 21 and the wedge piece 23 which comprise the bracket 20 is not limited to the above.
-Besides, it is free to implement in a mode that does not depart from the gist of the present invention.

The disassembled perspective view of the bracket of the Example of this invention. The side view of the temporary scaffold of the state which mounted | wore the upper binding holder with the bracket of the same Example. The side view of the temporary scaffold of the state which mounted | wore the lower binding holder with the bracket of the same Example. (A) is a front view of a state in which the movable cylinder is disposed at the lowest position, and (b) is a front view of a state in which the movable cylinder is disposed at the highest position. The perspective view of the temporary scaffold with which the bracket of the same Example was attached. (A) is a side view showing a state where the moving cylinder is switched to the lower position, (b) is a side view showing a state where the moving cylinder is moved up from the state of (a), and (c) is a state of (b). The side view which shows the state which rotated the movable cylinder from the state, (d) is a side view which shows the state which moved the movable cylinder downward from the state of (c). The side view of the temporary scaffold periphery to which the conventional bracket was attached. (A) And (b) is explanatory drawing explaining the external fitting method of the support | pillar pipe in the conventional bracket.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 11 ... Temporary scaffolding, 13 ... Handrail pipe as a steel pipe main body, 14 ... Reinforcement cap as a lid member, 21 ... Horizontal material as a projecting material, 22 ... Tube part as an exterior cylinder, 27 ... Moving cylinder as a tenon member, 28 ... Ring as a support part, 50 ... Post pipe, 52 ... Connection tenon, 55 ... First tightening holder, 56 ... Second tightening holder, 29, 57 ... Connection hole

Claims (4)

A first binding holder formed at a position opposed to 180 degrees, and a second binding holder formed at a position shifted by 90 degrees in the circumferential direction while being shifted by substantially the vertical width of the first binding holder in the vertical direction. The outer end of the pipe is externally fitted to a connecting tenon arranged upward when connecting a plurality of pipes in series, and locked between the connecting tenon and the overlapping connecting hole of the inserting part. A support pipe for a temporary scaffold that builds up a support so as to pass through the members, and protrudes outward from the outer wall of the building when connecting a plurality of the support pipes upward along the outer wall of the building In the bracket for temporary scaffolding used to connect the support pipe further upward avoiding the part,
An outwardly projecting material that is supported in a cantilevered manner with respect to the first or second binding holder, an outer tube that is attached to the projecting material, and a loosely fitted upper and lower portion within the outer tube A movable tenon member,
On the side surface of the tenon member, a support part that supports the support pipe that is externally fitted when the insertion part of the support pipe is externally fitted from above, a connection hole that overlaps the connection hole on the insertion part side, And a position holding means for allowing the tenon member to be held at the lower first rotation position and the upper second rotation position, respectively, with respect to the outer cylinder. And the second rotational position coincide with the deviation of the vertical width of the first or second binding holder, and the phase between the first rotational position and the second rotational position is 90. Bracket for temporary scaffolding, characterized by being misaligned. The bracket for a temporary scaffold according to claim 1, wherein the tenon member is restricted from rotating in the circumferential direction at the first and second rotational positions. The position holding means includes a substantially inverted L-shaped guide hole formed in the peripheral wall of the exterior cylinder, and a guide pin protruding on the peripheral surface of the tenon so as to be disposed inside the guide hole. It is comprised, The bracket for temporary scaffolds of Claim 1 or 2 characterized by the above-mentioned. The bracket for a temporary scaffold according to any one of claims 1 to 3, wherein the support portion also serves as a drop-off preventing member that prevents the tenon member from dropping off from the exterior cylinder.

Images