JP5063719B2 - Scaffold plate fixing device for liner plate structure installation - Google Patents

Description

  The present invention relates to a liner plate structure in which a scaffolding plate installed in a manner of being laid between two portions of a peripheral wall at an upper end side or an intermediate portion of a liner plate structure configured by assembling a plurality of liner plates. The present invention relates to a scaffold plate fixing device useful for fixing to a scaffold.

  In order to secure an operator's work scaffolding on the upper end side of the liner plate structure configured by assembling a plurality of liner plates, between the two peripheral walls of the liner plate structure on the upper end side of the liner plate structure. It is already well known to install a rectangular parallelepiped scaffolding plate (hereinafter referred to as an upper scaffolding plate) as shown in FIG. In addition, it is also possible to install a rectangular parallelepiped scaffolding plate (hereinafter referred to as an intermediate scaffolding plate) between two portions of the peripheral wall of the liner plate structure in an intermediate portion in the peripheral wall of the liner plate structure. 1 is already known as shown in FIG.

  On the other hand, as a fixing structure with the liner plate structure, for example, as shown in Patent Document 2, the lifting plate is installed in the peripheral wall of the liner plate structure. An L-shaped mounting fixing plate fixed to both vertical portions when the horizontal portion and two vertical portions located on both sides in the longitudinal direction of the horizontal portion are substantially U-shaped. A structure for fixing the mounting fixing plate and the liner plate, and thus the liner plate structure, by connecting the through hole opened to the horizontal plate portion of the mounting fixing plate and the through hole of the liner plate with a bolt is already known. ing.

  Further, for example, as shown in Patent Document 3, the scaffold is installed in the liner plate structure so as to extend along the peripheral wall of the liner plate structure, and an attachment member is attached to the arm extending from the scaffold. The scaffold and liner plate are mounted by swinging along the axial direction of the opening of the liner plate structure, and bolts are inserted and fixed to the through holes of the mounting member and the through holes of the liner plate. As a result, a structure for fixing the liner plate structure is already known.

JP 2009-114649 A Japanese Utility Model Publication 1-228160 Japanese Examined Patent Publication No. 7-1111092

  However, as described above, the fixing structure with the liner plate structure disclosed in Patent Document 2 is for a trap for moving up and down in the peripheral wall of the liner plate structure. Moreover, when the structure for fixing the liner plate structure shown in Patent Document 2 is used as it is as a structure for fixing the upper scaffold plate or the intermediate scaffold plate to the liner plate structure, the upper scaffold plate or the intermediate scaffold plate is used. Since it connects with a liner plate via a volt | bolt etc., the removal in the case where these scaffolding plates are unnecessary becomes complicated. For this reason, it is difficult to use the fixing structure with the liner plate structure shown in Patent Document 2 as it is as the fixing structure between the upper scaffold plate or the intermediate scaffold plate and the liner plate structure.

  Moreover, even if the fixing structure with the liner plate structure shown in Patent Document 3 is for the scaffold plate, the scaffold plate has a longitudinal direction along the inner circumferential direction of the peripheral wall of the liner plate structure and The upper scaffolding plate and the intermediate scaffolding plate are installed so as to extend in contact with the peripheral wall, and are installed so as to be positioned relatively apart from the peripheral wall except for the two locations of the peripheral wall. Installation mode is different. In the scaffold shown in Patent Document 3, the scaffold plate and the arm extending from the scaffold plate are connected to the liner plate via bolts, and accordingly, the liner is prevented from becoming an obstacle to work, lifting and the like. The plate structure can be swung upward in the axial direction of the opening of the plate structure. However, the upper scaffolding plate and the intermediate scaffolding plate of the above-described installation mode are installed between two locations on the peripheral wall of the liner plate structure. Therefore, it is difficult to swing upward when not in use, and further, even if the scaffold plate is swung upward, it becomes an obstacle such as raising and lowering the worker.

  And in the prior art example shown in FIG. 6 of Patent Document 1, in order to install the intermediate scaffolding plate in the peripheral wall of the liner plate structure, an annular hoop line arranged in the vertical direction, Since it requires a rebar bar consisting of a bar rebar connected to the bar and a pipe placed on the hoop bar, the number of components for installing the scaffolding plate and the assembly work of the rebar bar There is concern about complications. In addition, Patent Document 1 does not disclose a specific structure for fixing the intermediate scaffold plate to the pipe when the intermediate scaffold plate is placed on the pipe.

  Therefore, in the present invention, when the scaffolding plate is installed on the upper end side of the liner plate structure or in an intermediate portion in the peripheral wall, the scaffolding plate can be detachably fixed between two portions of the peripheral wall of the liner plate structure. An object of the present invention is to provide a scaffold plate fixing device for installing a liner plate structure.

  A scaffold plate fixing device for liner plate structure installation according to the present invention is constructed by assembling a liner plate having a flange formed on the periphery, and is attached to a liner plate structure having an open upper end. A scaffold plate fixing device for fixing a liner plate structure for fixing a long scaffold-like scaffold plate installed between two locations on a peripheral wall to the liner plate structure, wherein the first plate is attached to the liner plate. And at least a second component member that makes contact with one plate surface of the scaffold plate in the vertical direction, and the first component member is the liner. Two fixing parts to be fixed to the flange of the plate, and connecting these fixing parts to each other in a direction intersecting the longitudinal direction of the scaffold plate A rod-shaped portion having a position adjusting portion that extends, and two movable portions that are mounted on the position adjusting portion of the rod-shaped portion and are movable along the axial direction of the position adjusting portion. Includes a contact portion that contacts one plate surface of the scaffold plate, and is attached to the movable portion of the first component member so that the contact portion is movable in a direction approaching the movable portion. (Claim 1). Here, the overall shape of the liner plate structure in a plan view corresponds to a circular shape other than a perfect circle, an elliptical shape, an oval shape, a square shape, and other rectangular shapes.

  When the scaffold plate is installed on the upper end side of the liner plate structure, the scaffold plate fixing device for installing the liner plate structure is attached to the flange of the liner plate located on the upper end side of the liner plates constituting the liner plate structure. The fixing portion of the first component member is fixed and fixed, and the upper surface of the plurality of contact portions of the second component member is brought into contact with the lower surface of the plate surface of the scaffold plate, so that at least The both side ends in the longitudinal direction of the scaffolding plate are supported from below by a plurality of contact portions.

  In addition, when the scaffold plate is installed in an intermediate portion in the peripheral wall of the liner plate structure, the liner plate fixing device for installing the liner plate structure is positioned in the intermediate portion of the liner plate constituting the liner plate structure. The fixing portion of the first component member is fixed to the flange of the liner plate to be fixed, and the upper side surface of the position adjustment portion of the rod-shaped portion of the first component member is the lower side surface of the plate surface of the scaffold plate. The lower side surfaces of the plurality of abutting portions of the second component member are brought into contact with the upper side surface of the plate surface of the scaffold plate, thereby causing the both side ends in the longitudinal direction of the scaffold plate to be the first component member. It will be in the state clamped by the position adjustment site | part of a rod-shaped part, and the several contact part of a 2nd structural member.

  Furthermore, the contact part of the 2nd component member attached to the movable part is also stick-shaped part by moving both or one of the movable parts in the direction which makes both close and close along the axial direction of the position adjustment part of a stick-shaped part. The position adjustment portion is driven along the axial direction of the position adjustment portion, so that the moving portion after the liner plate structure installation scaffolding plate fixing device is installed is operated to move the contact portion of one second component and the other second portion. The distance from the contact portion of the component member can be adjusted according to the width of the scaffold plate in the short direction. And since the 2nd component member which has a contact part also moves in the direction in which a contact part is far and near with respect to the movable part of the 1st component member, the scaffolding plate for liner plate structure installation is fixed to the liner plate structure. Even after the device is installed, the abutting portion can be adjusted to a position where it abuts the lower surface of the scaffold plate by an operation of moving the second component member.

  Furthermore, the scaffold plate is not connected to the liner plate structure or the scaffold plate fixing device for installing the liner plate structure via screws, bolts, or the like. It can be easily removed from the scaffold fixing device for structure installation. Moreover, the liner plate structure installation scaffolding plate fixing device with the scaffolding plate removed can use the position adjustment portion of the rod-like portion as a gripping hand or a foothold for the raising / lowering trap in the liner plate.

  And the scaffold plate fixing device for liner plate structure installation according to the present invention is perpendicular to the other plate surface opposite to the one plate surface with which the second component member of the scaffold plate abuts. The third component member is movably attached to the second component member so as to be movable toward and away from the contact portion of the second component member. (Claim 2).

  Accordingly, when at least the scaffolding plate is installed on the upper end side of the liner plate structure, the scaffolding plate fixing device for installing the linerplate structure has the upper surface of the plurality of contact portions of the second component member as the scaffolding plate. And a lower side surface of the third component member is brought into contact with an upper side surface of the plate surface of the scaffolding plate, whereby a plurality of both side ends in the longitudinal direction of the scaffolding plate are provided. It will be in the state clamped by the lower surface of the 3rd component, and the upper surface of the contact part of a some 2nd component.

  In addition, when the scaffold plate is installed at an intermediate portion in the peripheral wall of the liner plate structure, the scaffold plate fixing device for liner plate structure installation is provided with the lower surface of the plurality of contact portions of the second component member as the scaffold. Instead of bringing the upper surface of the plate surface into contact with the upper surface, and the upper surface of the position adjustment portion of the rod-shaped portion of the first component member with the lower surface of the plate surface of the scaffolding plate, the third structure By bringing the upper side of the member into contact with the lower side of the plate surface of the scaffold plate, both side ends in the longitudinal direction of the scaffold plate are brought into contact with the upper side of the plurality of third component members and the plurality of second component members. It will be in the state clamped with the lower surface of the contact part.

  Moreover, since the third component member moves in a direction closer to the contact portion with respect to the second component member, the third component member can be moved to the liner plate structure even after the installation of the liner plate structure installation scaffolding plate fixing device. By moving the component member, the distance between the third component member and the contact portion of the second component member can be adjusted according to the thickness of the scaffold plate.

  When the above-described configuration is generally shown, the scaffold plate fixing device for liner plate structure installation according to the present invention configures the liner plate structure when the scaffold plate is installed on the upper end side of the liner plate structure. The fixed portion of the first component member is fixed to the flange of the liner plate located on the upper end side of the liner plate, and the movable portion of the first component member is moved to move the position of the movable portion and each other And adjusting the distance between the movable portion and the contact portion so that the upper surface of the contact portion is below the scaffold plate. The third component member is brought into contact with one plate surface at a desired position, the third component member is moved, and the distance from the contact portion of the second component member is adjusted. The lower side of the scaffolding board The scaffold plate is brought into contact with the other plate surface at a desired position, and both side ends in the longitudinal direction of the scaffold plate are sandwiched from above and below by the contact portion and the third component member. It is fixed to the liner plate structure (claim 3).

  Further, the scaffold plate fixing device for installing the liner plate structure according to the present invention is provided such that when the scaffold plate is installed on an intermediate portion in the peripheral wall of the liner plate structure, the liner plate constituting the liner plate structure is provided. The fixing portion of the first component member is fixed to the flange of the liner plate located in the middle portion, and the movable portion of the first component member is moved to adjust the position of the movable portion and the distance between them. And the second contact surface of the second component member is moved to adjust the distance between the movable portion and the contact portion so that the lower surface of the contact portion is the upper side of the scaffold plate. At a desired position, and a position adjustment portion of the rod-shaped portion of the first component member is brought into contact with the other plate surface on the lower side of the scaffold plate at a desired position, or the first 3 components allowed Then, the distance from the contact portion of the second component member is adjusted so that the upper surface of the third component member contacts the other plate surface on the lower side of the scaffold plate at a desired position. Then, the both sides in the longitudinal direction of the scaffold plate are sandwiched from above and below by the contact portion and the position adjusting portion of the rod-shaped portion or the third component member so that the scaffold plate is the liner plate structure. (Claim 4).

  As described above, when the scaffold plate fixing device for liner plate structure installation according to the present invention is installed on the upper end side of the liner plate structure, the upper end of the liner plates constituting the liner plate structure is provided. The fixing portion of the first component member is fixed to the flange of the liner plate positioned on the side, and the upper side surfaces of the plurality of contact portions of the second component member are below the plate surface of the scaffold plate By making contact with the side surface, at least both side ends in the longitudinal direction of the scaffolding plate are supported from below by a plurality of contact portions, respectively. Thus, the scaffold plate can be prevented from falling by being fixed to the liner plate structure.

  Further, when the scaffold plate fixing device for liner plate structure installation according to the present invention is installed in an intermediate portion in the peripheral wall of the liner plate structure, the scaffold plate fixing device for liner plate structure installation is: The fixing portion of the first component member is fixed to the flange of the liner plate positioned at the middle portion of the liner plate constituting the liner plate structure, and the rod-shaped portion of the first component member is positioned. By bringing the upper side of the adjustment part into contact with the lower side of the plate surface of the scaffold plate, and bringing the lower side of the plurality of contact parts of the second component member into contact with the upper side of the plate surface of the scaffold plate Since both side ends in the longitudinal direction of the scaffold plate are sandwiched between the position adjusting portion of the rod-shaped portion of the first component member and the plurality of contact portions of the second component member, both ends in the longitudinal direction of the scaffold plate Is a liner It is fixed to the liner plate structures it is possible to prevent the fall of the scaffolding plate through the plate structure installed scaffolding plate fixing device.

  Furthermore, in the scaffold plate fixing device for liner plate structure installation according to the present invention, the movable part is movable in the direction in which both or one of the movable parts moves along the axial direction of the position adjustment part of the rod-shaped part. Therefore, the contact part of the second component member attached to the movable part can also be driven along the axial direction of the position adjustment part of the rod-like part. Therefore, even after the scaffold plate fixing device for installing the liner plate structure is installed on the liner plate structure, by moving the movable portion, the contact portion of one second component member and the other second component member Since the distance from the abutment part can be adjusted according to the width of the scaffolding plate in the short direction, adjustments to place both abutment parts below the scaffolding plate, Adjustment for making the contact portion of the second component contact the side surface can be performed easily and smoothly.

  Furthermore, in the scaffold plate fixing device for liner plate structure installation according to the present invention, the scaffold plate is not connected to the liner plate structure or the liner plate structure installation scaffold plate fixing device via screws or bolts. Therefore, when the scaffolding plate is not required, the scaffolding plate can be easily removed from the scaffolding plate fixing device for installing the liner plate structure, so that this device does not always keep the scaffolding plate. In addition, it is possible to prevent inconvenience due to the scaffolding plate for work and lifting. Moreover, in the scaffold plate fixing device for liner plate structure installation according to the present invention, when the scaffold plate is removed, the position adjustment portion of the rod-shaped portion can be used as a lifting hand or a foothold for lifting, so the scaffold plate It is possible to use it effectively regardless of the presence or absence.

  In particular, the scaffold plate fixing device for liner plate structure installation according to the inventions of claim 2 and claim 3 is provided when the scaffold plate is installed on the upper end side of the liner plate structure. The plate fixing device abuts the upper surface of the plurality of contact portions of the second component member with the lower surface of the plate surface of the scaffold plate, and the lower surface of the third component member of the plate surface of the scaffold plate. A state in which both side ends in the longitudinal direction of the scaffolding plate are sandwiched between the lower side surfaces of the plurality of third constituent members and the upper side surfaces of the contact portions of the plurality of second constituent members by being brought into contact with the upper side surface Therefore, both ends in the longitudinal direction of the scaffold plate are fixed to the liner plate structure via the liner plate structure installation scaffold plate fixing device, and the fall of the scaffold plate can be more effectively prevented.

  In particular, in the scaffold plate fixing device for liner plate structure installation according to the inventions of claim 2 and claim 4, when the scaffold plate is installed at an intermediate portion in the peripheral wall of the liner plate structure, the liner plate The structure installation scaffold plate fixing device makes the lower surface of the plurality of contact portions of the second component member contact the upper surface of the plate surface of the scaffold plate, and the position of the rod-shaped portion of the first component member. Instead of bringing the upper surface of the adjustment part into contact with the lower surface of the plate surface of the scaffold plate, the upper surface of the third component member is brought into contact with the lower surface of the plate surface of the scaffold plate, thereby Since both side ends in the longitudinal direction are sandwiched between the upper side surfaces of the plurality of third component members and the lower side surfaces of the contact portions of the plurality of second component members, both ends in the longitudinal direction of the scaffold plate are liner plates. Liner plate via scaffolding plate fixing device for structure installation It is fixed to the bets and it is possible to prevent the fall of the scaffolding board.

  In particular, in the scaffold plate fixing device for liner plate structure installation according to the inventions according to claim 2, claim 3, and claim 4, the third component member is in contact with the second component member. It is possible to move in the direction of approaching. For this reason, even after the installation of the scaffold plate fixing device for installing the liner plate structure, the distance between the third component member and the contact portion of the second component member is set by moving the third component member. Since it can be adjusted according to the thickness, it is possible to easily and smoothly adjust the interval between the third component member and the contact portion of the second component member according to the thickness of the scaffold plate.

FIG. 1 is an explanatory view showing each component member provided in a scaffold plate fixing device for liner plate structure installation according to the present invention. FIG. 2 is an explanatory view showing an overall configuration of the above-described liner plate structure installation scaffolding plate fixing device, and FIG. 2 (a) is a plan view of the above liner plate structure installation scaffolding plate fixing device, FIG. FIG. 2B is a front view of the above-described scaffold plate fixing device for installing a liner plate structure, and FIG. 2C is a side view of the above-described scaffold plate fixing device for installing a liner plate structure. FIG. 3 (a) is a partial cross-sectional view showing an overall state in which the scaffold plate is fixed to the upper end side of the liner plate using the two liner plate structure installation scaffold plate fixing devices. (B) is the fragmentary sectional view which showed the state of the principal part which fixed the scaffold board to the upper end side of the liner plate with the scaffold plate fixing apparatus for liner plate structure installation same as the above. FIG. 4A is a plan view showing an entire state in which the scaffolding plate is fixed to the upper end side of the liner plate using the two liner plate structure installation scaffolding plate fixing devices described above, and FIG. ) Is a plan view showing a state of a main part in which the scaffold plate is fixed to the upper end side of the liner plate by the above-described liner plate fixing device for installing the liner plate structure. FIG. 5 (a) is a partial cross-sectional view showing an overall state in which the scaffold plate is fixed to an intermediate portion of the liner plate using the two liner plate structure installation scaffold plate fixing devices. (B) is the fragmentary sectional view which showed the state of the principal part which fixed the scaffold board to the intermediate part of the liner plate with the scaffold plate fixing apparatus for liner plate structure installation same as the above. FIG. 6A is a plan view showing an entire state in which the scaffolding plate is fixed to the intermediate portion of the liner plate using the two liner plate structure installation scaffolding plate fixing devices described above, and FIG. ) Is a plan view showing a state of a main part in which the scaffold plate is fixed to an intermediate portion of the liner plate by the above-described liner plate fixing device for installing the liner plate structure. FIG. 7 is different from the embodiment of FIG. 6A in that the position adjustment portion of the first component member constituting the scaffold plate fixing device for installing the liner plate structure is oblique to the longitudinal direction of the scaffold plate. It is the top view which showed the modification of the aspect contact | abutted to.

  Hereinafter, an example of an embodiment of the present invention will be described with reference to the drawings.

  1 and 2, the entire configuration of the liner plate structure installation scaffolding plate fixing device 1 as an example of the present invention and the component members included in the liner plate structure installation scaffolding plate fixing device 1 are single components. 2, two constituent members 3, 3 and two constituent members 5, 5 are shown. 3, 4, 5, and 6, a part of the liner plate structure 8 that is the installation target of the scaffold plate fixing device 1 for installing the liner plate structure is shown. The liner plate structure 8 is configured by assembling a plurality of liner plates 8a, and has a peripheral wall having an upper end opened.

  The component member 2 includes two fixing portions 12 and 12 fixed to the flange 10 of the liner plate 8a, and one end attached to one of the fixing portions 12 and the other end attached to the other of the fixing portions 12. It has a single rod-shaped portion 13 in which the fixed portions 12 and 12 are connected to each other, and two movable portions 14 and 14 that are mounted on a position adjusting portion 13c described later of the rod-shaped portion 13.

  Of these, the fixed portion 12 includes a thin flat plate-like contact portion 12a and a thin vertical plate-like joint portion 12b provided upright from the contact portion 12a. In this embodiment, the contact portion 12a and the joint portion 12b are integrally formed in a substantially L-shape.

  The abutting portion 12a is formed on the upper side surface of the flange 10 of the liner plate 8a located on the upper end side of the liner plate structure 8 as shown in FIG. 4A and as shown in FIGS. 6A and 7. Of the two liner plates 8a, 8a positioned on the upper and lower sides of the two liner plates 8a, 8a located in the middle part of the liner plate structure 8, the lower surface has a lower surface that can abut against the upper surface of the upper flange 10 without rattling. Yes. A through hole 18 is formed in the contact portion 12a, and the inner diameter of the through hole 18 is formed in the flange 10 of the liner plate 8a shown in FIGS. 3 (b) and 5 (b). The inner diameter dimension of the screw hole 11 for inserting the bolt 15 is the same, and the bolt 15 can be inserted. The inner peripheral surface of the through hole 18 may have a screw groove for screwing with the bolt 15. Further, the distance between the through hole 18 of one abutting portion 12a and the through hole 18 of the other abutting portion 12a is the width direction of the liner plate 8a in the state of constituting the liner plate structure 8 (liner plate structure 8 (The inner circumferential direction of the peripheral wall) is the same as the linear interval between the screw holes 11 formed on both sides.

  The surface of the joining portion 12b opposite to the contact portion 12a side is joined to the outer peripheral surface along the axial direction of an end side portion 13a (described later) of the rod-like portion 13. In this embodiment, the joining portion 12b is joined to the rod-like portion 13 in a passive manner, for example, by welding, but the position adjustment between the through hole 18 and the screw hole 11 and the contact between the contact portion 12a and the flange 10 are performed. In order to facilitate, the rod-shaped portion 13 can be swingable along the circumferential direction of the end-side portion 13a of the rod-shaped portion 13 or can be moved along the axial direction of the end-side portion 13a of the rod-shaped portion 13. You may be connected with the end side site | part 13a.

  In this embodiment, the rod-shaped portion 13 has a circular cross section, for example, and extends along the substantially axial direction of the opening of the liner plate structure 8 when attached to the liner plate structure 8 and in the vicinity of the end side thereof. Two end side portions 13a joined to the joint portion 12b of the fixing portion 12, and connected to the end side portion 13a on the side opposite to the joint portion 12b, and when the liner plate is attached to the liner plate structure 8 It has two overhanging portions 13b extending substantially parallel to the radial direction of the opening of the structure 8, and a single position adjusting portion 13c connected to the opposite side portion of the overhanging portions 13b and 13b. Configured.

  The position adjusting portion 13c has a screw groove cut in a predetermined range from a boundary portion between both of the overhang portions 13b, and a movable portion 14 described below is attached to each portion where the screw groove is cut. And the site | part located in the intermediate part of the longitudinal direction of the position adjustment site | part 13c and between the site | parts where the screw groove was cut may be formed with the groove | channel or protrusion for anti-slip | skid. Further, the position adjusting portion 13c may be threaded over the entire range including the intermediate portion in the longitudinal direction.

  The movable portion 14 has a screw hole 20 that is externally mounted on the position adjustment portion 13c. It is comprised from the attachment part 21 extended to. In this embodiment, the attachment portion 21 has a thin plate shape, and the width along the axial direction of the position adjusting portion 13c is larger than the dimension along the axial direction of the screw hole 20 of the main body portion 19. Yes. But the width | variety of the attaching part 21 may be the same as the dimension of the main-body part 19, or may be smaller than the dimension of the main-body part 19. Further, the attachment portion 21 is formed with a through hole 22 having an inner diameter dimension substantially the same as the outer diameter dimension of a columnar portion 24 of the constituent member 3 described later. The through-hole 22 may be formed with a threaded groove on the inner peripheral surface so that it can be screwed with the columnar portion 24 of the component member 3. Accordingly, by rotating the movable portion 14 in a predetermined direction along the circumferential direction of the position adjustment portion 13c, the movable portion 14 can set the range of the position adjustment portion 13c in which the screw groove is cut to the axis of the position adjustment portion 13c. In addition to moving along the direction, it is possible to prevent the movable portion 14 from being inadvertently displaced in the axial direction of the position adjustment portion 13c.

  Each component 3 includes a columnar columnar portion 24 having a screw groove formed on a side surface, and a contact portion extending in a direction intersecting the longitudinal direction of the columnar portion 24 from one end in the longitudinal direction of the columnar portion 24. In this embodiment, the columnar part 24 and the contact part 25 are connected in a direction orthogonal to each other, and the whole is substantially L-shaped. Thereby, the component 3 inserts the columnar part 24 into the through hole 22 of the attachment part 21 of the movable part 14, and externally attaches the nut 6 to the projecting part of the columnar part 24 from the attachment part 21. 14 is assembled. Then, by rotating the columnar part 24 in a predetermined direction and changing the amount of protrusion from the attachment part 21, the dimension from the contact part 25 to the attachment part 21 also changes accordingly.

  Each component 5 extends along the radial direction of the cylindrical portion 27 connected to one side in the axial direction of the cylindrical portion 27 and a cylindrical portion 27 having a through-hole whose inner peripheral surface is threaded. A through-hole that can contact the plate surface of the scaffold plate 9 in the vertical direction and can contact the plate surface without rattling and communicate with the through-hole of the cylindrical portion 27 to form the through-hole 28. It has the support part 29 which has. The inner diameter dimension of the through hole 28 of the component member 5 is substantially the same as the outer diameter dimension of the columnar portion 24 of the component member 3. In this embodiment, the cylindrical portion 27 has a cylindrical shape, and the support portion 29 has a thin plate shape. Thereby, the component member 5 is externally mounted on the columnar portion 24 of the component member 5 and rotated in the circumferential direction of the columnar portion 24 to change the protruding amount of the columnar portion 24 from the cylindrical portion 27 of the component member 5. The dimension from the support part 29 to the contact part 25 will also change according to this.

  Next, when the scaffold plate 9 is installed on the upper end side of the liner plate structure 8, the scaffold plate 9 is fixed to the liner plate structure 8 using the above-described liner plate structure installation scaffold plate fixing device 1. An example of the configuration and procedure to be performed will be described with reference to FIGS.

  First, the constituent member 2, the constituent member 3, and the constituent member 5 are assembled in advance as shown in FIG. 2 so as to have two scaffold plate fixing devices 1 for installing the liner plate structure. That is, after mounting the through-hole 28 of the component member 5 on the columnar portion 24 of the component member 3 and assembling the component member 3 and the component member 5, the columnar portion 24 of the component member 3 is attached to the movable portion 14 of the component member 2. The nut 6 is externally mounted on a portion of the columnar portion 24 that protrudes from the through hole 22 of the movable portion 14 and is assembled to the component member 2 and the component member 3.

  Next, with respect to the abutting portions 12a of both the fixing portions 12 of the constituent members 2 of each liner plate structure installation scaffolding plate fixing apparatus 1, the surface opposite to the joining portion 12b side is passed through the abutting portion 12a. After the hole 18 is brought into contact with the upper surface of the flange 10 so as to communicate with the screw hole 11 formed in the flange 10 of the liner plate 8a, the bolt 15 is inserted through the hole 18 and the screw hole 11, A nut 16 is externally mounted on the tip of the bolt 15 protruding from the lower surface of the flange 10, and the scaffold plate fixing device 1 for installing the liner plate structure is fixed to the liner plate 8a.

  As shown in FIG. 3 (b), in order to allow the lower surface of the scaffold plate 9 to be installed on the upper surface of the flange 10, the columnar shape of the component member 5 of each liner plate structure installation scaffold plate fixing device 1 is provided. The part 24 is rotated in a predetermined direction and adjusted so that the upper surface of the contact part 25 is the same as the upper surface of the flange 10, and the main body 19 of the movable part 14 is rotated in a predetermined direction, The space from the end of the contact part 25 to the end of the other contact part 25 is adjusted to be smaller than the lateral dimension of the scaffold plate 9. In this case, the contact area between the scaffold plate 9 and the contact portions 25 and 25 is adjusted so that the plate surface of the scaffold plate 9 can be stably supported from below. It should be noted that the support portion 29 of the component member 5 of each liner plate structure installation scaffolding plate fixing apparatus 1 has a dimension from the contact portion 25 larger than the thickness of the scaffolding plate 9 in order to improve the efficiency of the next operation. It is preferable to place it at a position where it becomes larger.

  Further, with respect to both end portions in the longitudinal direction of the scaffold plate 9, the upper surface of the flange 10 of the liner plate 8 and the two contact portions 25, 25 included in the constituent member 2 of the scaffold plate fixing device 1 for installing the liner plate structure. After placing the plate surface on both the upper side and the side surface, the component member 5 is rotated in a predetermined direction and moved until the side surface of the contact portion 25 of the support portion 29 contacts the plate surface of the scaffold plate 9. The scaffold plate 9 is sandwiched and fixed in the vertical direction by the support portion 29 of the component member 5 and the contact portion 25 of the component member 3. In addition, it is good also as the thing fixed more firmly to the liner plate 8 of the scaffold board 9 by clamping the scaffold board 9 from the both sides of a transversal direction also in the columnar part 24 of both the structural members 3. FIG.

  Thus, when the elongated plate-shaped scaffolding plate 9 (in this embodiment, a thin rectangular parallelepiped shape) is installed on the upper end side of the liner plate structure 8, the liner plate structure 8 has a circular shape in plan view. 4A, the scaffolding plate 9 extends between the portions symmetrical to the reference line L1 passing through the center P of the opening of the peripheral wall of the liner plate 8 structure as shown in FIG. It becomes an aspect constructed in the center part of the circumferential direction of 8a. However, when the liner plate structure 8 has an oval shape or an oval shape in plan view, the liner plate structure 8 is constructed between two locations on the peripheral wall of the liner plate structure 8. And the position adjustment site | part 13c of the structural member 2 will be arrange | positioned in the form orthogonal to the reference line L2 along the longitudinal direction of the scaffold board 9, as FIG.4 (a) shows.

  When the liner plate structure installation scaffolding plate fixing device 1 is attached to the upper end side of the liner plate structure 8, as shown in FIGS. 3 (b) and 4 (b), the components 2 The box 31 may be attached to the end portion 13 a of the rod-like portion 13, and the handrail portion 32 may be attached to the box 31.

  Further, when the scaffold plate 9 is installed in the middle part of the liner plate structure 8, the scaffold plate 9 is fixed to the liner plate structure 8 using the above-described liner plate structure installation scaffold plate fixing device 1. An example of the configuration and procedure will be described with reference to FIGS. It is to be noted that the component plate 2, the component member 3 and the component member 5 are assembled in advance as shown in FIG. 2 so that the two liner plate structure installation scaffolding plate fixing devices 1 are provided. Since it is the same as the case where the scaffolding board 9 is constructed in the upper end side of the body 8, description is abbreviate | omitted.

  Regarding the abutting portions 12a of both the fixing portions 12 of the constituent members 2 of the assembled liner plate fixing device 1 for each liner plate structure installation, the surface on the joint portion 12b side has two through holes 18 of the abutting portions 12a. The bolts 15 are inserted into the through holes 18 and the screw holes 11 by contacting the upper side surfaces of the flanges 10 of the upper liner plate 8a so as to communicate with the screw holes 11 of the flanges 10 of the two liner plates 8a. Then, the nut 16 is externally mounted on the tip of the bolt 15 protruding from the lower surface of the flange 10 of the lower liner plate 8a, and the liner plate structure installation scaffolding plate fixing device 1 is attached to both liner plates 8a. Fix it.

  Next, the main body portion 19 of the movable portion 14 is rotated in a predetermined direction so that the space from the end of the support portion 29 of one component member 5 to the end of the support portion 29 of the other component member 5 is short of the scaffold plate 9. Adjust so that it is smaller than the dimension in the hand direction. In this case, the contact area between the scaffold plate 9 and the support portion 29 of the component member 5 is adjusted so that the scaffold plate 9 can be stably supported from below. As shown in FIG. 5B, when the upper surface of the support portion 29 of the component member 9 contacts the lower surface of the scaffold plate 9, the upper surface of the main body 19 of the movable member 14 is also below the scaffold plate 9. The outer diameter of the main body 19 may be taken so as to be in contact with the side surface, thereby further increasing the stability of the scaffold plate 9. Although not shown, the component 5 is removed, the movable parts 14 and 14 are moved, and after the distance between the movable parts 14 and 14 is larger than the lateral dimension of the scaffold plate 9, the position adjustment portion 13c is movable. The scaffold plate 9 may be placed on the upper side surface between the portions 14 and 14.

  The dimension from the contact part 25 to the support part 29 of the constituent member 5 or the upper side surface of the position adjusting part 13c of the constituent member 2 by rotating the columnar part 24 of the constituent member 3 is larger than the thickness of the scaffold plate 9. By setting it large, the columnar part 24 of the constituent member 3 is rotated in the opposite direction to the previous direction, and the scaffold plate 9 is moved to the support part 29 side of the constituent member 5 or the position adjusting part 13c side of the constituent member 2. The scaffold plate 9 is sandwiched and fixed in the vertical direction between the contact portion 25 of the component member 3 and the support portion 29 of the component member 5 or the position adjustment portion 13c of the component member 2.

  As a result, when the long plate-like scaffolding plate 9 (in this embodiment, a thin rectangular parallelepiped shape) is installed in the middle portion of the liner plate structure 8, the liner plate structure 8 is circular in plan view. 6A, the scaffold plate 9 is in particular relative to a reference line L1 passing through the center P of the opening of the peripheral wall of the liner plate structure 8 and the center portion in the circumferential direction of the liner plate 8a as shown in FIG. It becomes the aspect mounted on the support site | part 29 of the structural member 5, or the position adjustment site | part 13c of the structural member 2 between the site | parts which become line symmetrical. However, when the liner plate structure 8 has an oval shape or an oval shape in plan view, the liner plate structure 8 is constructed between two locations on the peripheral wall of the liner plate structure 8. And the position adjustment site | part 13c of the structural member 2 is arrange | positioned so that it may orthogonally cross with respect to the reference line L2 along the longitudinal direction of the scaffold board 9, as FIG. Will be supported from.

  So far, the scaffold plate fixing device 1 for installing the liner plate structure has been described as being installed in the liner plate structure 8 so that the position adjustment portion 13c is orthogonal to the longitudinal direction of the scaffold plate 9, but the present invention is not necessarily limited thereto. As shown in the configuration in which the scaffold plate 9 of FIG. 7 is installed in the middle part of the liner plate structure 8, the scaffold plate for installing the liner plate structure is located at a position deviated from the center P of the opening of the peripheral wall of the liner plate structure 8. When the fixing device 1 is installed, the scaffold plate 9 can be placed so as to obliquely intersect the longitudinal direction of the scaffold plate 9 with respect to the position adjustment portion 13c. This is the same even when the scaffold plate 9 is installed on the upper end side of the liner plate structure 8 or when the liner plate structure 8 has an opening shape other than a circular shape such as an oval shape or an oval shape in plan view. .

  Further, in this liner plate structure installation scaffolding plate fixing apparatus 1, when the scaffolding plate 9 is not required, the scaffolding plate 9 is not only the liner plate structure 8, but also the liner plate structure installation scaffolding plate fixing apparatus 1. Since none of the constituent members 2, 3 and 5 is connected, the scaffold plate 9 can be quickly removed without using a tool. Moreover, the position adjusting portion 13c of the liner plate structure installation scaffolding plate fixing apparatus 1 after the scaffolding plate 9 is removed is used for a handle and / or a footrest of a trap for the operator to raise and lower the liner plate 8. be able to.

DESCRIPTION OF SYMBOLS 1 Scaffold board fixing device for liner plate structure installation 2 Configuration member (1st configuration member)
3 component (second component)
5 components (third component)
8 Liner plate structure 8a Liner plate 9 Scaffold plate 10 Flange 11 Screw hole 12 Fixed part 13 Rod-like part 13c Position adjustment part 14 Movable part 19 Body part 21 Attachment part 22 Through-hole 24 Columnar part 25 Contact part 27 Cylindrical part

Claims (4)

A long scaffold that is constructed by assembling a liner plate having a flange formed on the periphery and is attached to a liner plate structure having an open upper end, and is constructed between two portions of the peripheral wall of the liner plate structure. A scaffold plate fixing device for liner plate structure installation for fixing a plate to the liner plate structure,
A first component member attached to the liner plate, and a second component member that forms a pair in contact with one plate surface of the scaffold plate in the vertical direction; and
The first component member includes two fixing portions that are fixed to the flange of the liner plate, and a portion for position adjustment that connects these fixing portions and extends in a direction intersecting the longitudinal direction of the scaffolding plate. And two movable parts that are mounted on the position adjustment portion of the rod-like portion and are movable along the axial direction of the position adjustment portion.
The second component member includes an abutting portion that abuts one plate surface of the scaffold plate, and the abutting portion is movable in a direction away from the movable portion with respect to the movable portion of the first component member. A scaffolding plate fixing device for installing a liner plate structure, characterized in that it can be attached. A third component member that abuts in the vertical direction with respect to the other plate surface opposite to the one plate surface with which the second component member of the scaffold plate abuts;
2. The liner according to claim 1, wherein the third component member is attached to the second component member so as to be movable in a direction in which the second component member comes into contact with a contact portion of the second component member. Scaffold plate fixing device for plate structure installation. In constructing the scaffold plate on the upper end side of the liner plate structure,
Fixing the fixing portion of the first component member to the flange of the liner plate located on the upper end side of the liner plate constituting the liner plate structure;
The movable part of the first component member is moved to adjust the position of the movable part and the distance between the movable parts, and the contact part of the second component member is moved to move the movable part and the contact part. Adjusting the interval, the upper surface of the contact portion is brought into contact with one plate surface on the lower side of the scaffold plate at a desired position,
The third component member is moved to adjust the distance from the contact portion of the second component member, and the lower surface of the third component member is the other plate surface that is the upper side of the scaffold plate. Abut at the desired position,
3. The scaffold plate is fixed to the liner plate structure by sandwiching both side ends in the longitudinal direction of the scaffold plate from above and below between the contact portion and the third component member. The scaffold plate fixing device for liner plate structure installation described in 1. In constructing the scaffold plate on the intermediate portion in the peripheral wall of the liner plate structure,
Fixing the fixing portion of the first component member to the flange of the liner plate located at an intermediate portion of the liner plate constituting the liner plate structure;
The movable part of the first component member is moved to adjust the position of the movable part and the distance between the movable parts, and the contact part of the second component member is moved to move the movable part and the contact part. Adjusting the interval, the lower surface of the contact portion is brought into contact with one plate surface on the upper side of the scaffold plate at a desired position,
A position adjusting portion of the rod-shaped portion of the first component member is brought into contact with the other plate surface on the lower side of the scaffold plate at a desired position; or
The other plate surface in which the upper surface of the third component member becomes the lower side of the scaffold plate by moving the third component member and adjusting the distance from the contact portion of the second component member At the desired position,
The scaffold plate is fixed to the liner plate structure by sandwiching both side ends of the scaffold plate in the longitudinal direction between the contact portion and the position adjustment portion of the rod-shaped portion or the third component member from above and below. The scaffold plate fixing apparatus for installing a liner plate structure according to claim 2.

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