JP2014152467A - Material carrier lift - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a material carrier lift which can be easily installed in a construction site or the like where a scaffold is used.SOLUTION: A material carrier lift 1 comprises: a rail member 10 including a vertically extended rail 11 and a plurality of rail fixing pieces 12 extending from the rail 11 and fixed to a scaffold A; a hanger member 20 including a pair of bases 21 attached to an upper part of the rail member 10, a shank fixed by the pair of bases 21, an outer cylinder part 23 externally fitted to the shank, and a block fitting part 24 which extends from the outer cylinder part 23 and to which a chain block H is attached; a slide member 40 which can be lifted by the rail 11 and which includes a base 41 and a connection part 42 irrotationally mounted and a chain fitting part 43 horizontally extending from the connection part 42 and having a tip to which a chain C is attached; and a load-carrying platform 60 which is formed in a box shape with an upper side opened and in which one of support members 61 vertically extended is attached to the slide member 40.

Description

  The present invention relates to a material transport lift for transporting materials such as scaffold members and building members at a construction site.

  In a construction site, a work for raising and lowering materials such as scaffold members and building members is generally performed between a scaffold in a high place and the ground. In order to save labor in this work, a pair of guide rails fixed to the scaffolding pipe and extended vertically, a cage-type cargo bed movable along the guide rails, and an upper part of the scaffolding are installed. A material conveyance lift provided with a chain block that winds up a chain fixed to the upper part has been proposed (Patent Document 1).

  However, in the technique of Patent Document 1, since a pair of guide rails are arranged on both sides of the loading platform, it is necessary to assemble the scaffolding in a U-shape to fix the guide rails, and it takes time to construct the scaffolding. was there. Moreover, in the technique of patent document 1, since it is necessary to assemble a scaffold in a U-shape, a large space is required for installation of the material transport lift, and depending on the construction site, the material transport lift cannot be installed due to space limitations. There was a problem.

  In view of the above circumstances, an object of the present invention is to provide a material transport lift that can be easily installed at a construction site using a scaffold.

  In order to solve the above-described problems, a material transport lift according to the present invention includes a rail having a polygonal cross section and extending vertically, and a plurality of rail fixing pieces extending from the rail and fixed to a scaffold at a predetermined interval. A rail member having a pair of base parts attached to the upper part of the rail member so as to be spaced apart from each other, a shaft part extending in parallel with the rail, the upper end and the lower end being fixed by the pair of base parts, A hanger member having a cylindrical outer tube portion that is rotatably fitted to the outer surface, a block mounting portion that extends horizontally from the outer tube portion and to which a chain block is attached at the tip, and the hanger member A slide portion that can be moved up and down by the rail at a lower position and is non-rotatably mounted around the rail, and extends horizontally from the slide portion, and a chain from the chain block is attached to the tip. A slide member having a chain mounting portion to be kicked, is formed in a shape which is opened upward box comprises a loading platform that is attached to the slide member at one side extending vertically "be characterized.

  Here, as the “slide part”, “one having a plurality of rollers in contact with each surface of the polygonal rail”, “slidably fitted to the rail, and the inner shape is the outer shape of the rail” The thing formed along "etc. can be illustrated. Further, a plurality of slide portions may be provided at the top and bottom depending on the size of the loading platform to be attached. When a plurality of slide parts are provided, it is desirable to extend the chain attachment part from the uppermost slide part.

  Examples of the extending direction of the “chain attachment portion” include “a direction perpendicular to the outer surface of the scaffold”, “a direction parallel to the outer surface of the scaffold”, and the like.

  Furthermore, examples of the “loading platform” include “a loading platform having a square shape in plan view”, “a loading platform having a polygonal shape in plan view”, “a loading platform having a circular shape in plan view”, and the like.

  According to the material transport lift of the present invention, the rail fixing piece of the rail member is fixed to the outside of the scaffold, the chain block is attached to the block attachment portion of the hanger member, and the chain extending from the chain block is attached to the chain attachment portion of the slide member It is possible to raise and lower the loading platform by the chain block. In the present invention, since the loading platform is raised and lowered via the slide member by one rail member extending vertically, it is not necessary to assemble the scaffold in a U-shape as in the prior art, and the rail member is fixed to the scaffold. You can easily install it. Moreover, since a material conveyance lift can be installed if the space of a loading platform can be ensured, it can be set as the material conveyance lift which can respond to various construction sites.

  In addition, since the loading platform is attached to the slide member with only one side extending in the vertical direction, when the material is taken in and out of the loading platform, the sliding member, the rail member and the like are not obstructed, and the material can be easily taken in and out. be able to.

  Furthermore, since the block attachment part to which the chain block on the hanger member is attached can be rotated at the outer cylinder part, when the chain block is attached to or removed from the block attachment part, the block attachment part is rotated to the scaffold side. Thus, the chain block can be attached as close to the scaffold as possible. Therefore, the safety at the time of attaching or removing the chain block can be enhanced.

  By the way, since only one side of the loading platform is attached to the slide member and the loading platform is raised and lowered, when the loading platform is enlarged or a heavy material is placed on the loading platform, the loading platform becomes easy to tilt, and the sliding portion of the sliding member and the rail member There is a risk that an uneven load acts between the rail and the rail and the slide part or rail wears unevenly, resulting in a malfunction. On the other hand, in this invention, since the block attachment part of a hanger member can be rotated, it extends so that a block attachment part may be substantially parallel to the outer surface of a scaffold, and the same side as the loading platform attached to the slide member. While rotating, the slide member is attached to the rail member so that the chain attachment portion is substantially parallel to the outer surface of the scaffold and extends to the same side as the loading platform. As a result, the chain attached to the chain attachment portion can apply a force that lifts the side opposite to the part attached to the slide member to the loading platform via the slide member. Can be reduced. Therefore, according to the construction site etc., a loading platform can be enlarged easily or a heavy material can be conveyed, and it can be set as a versatile material conveyance lift.

  In addition to the above configuration, the material transport lift according to the present invention may include: "The base portion can be moved up and down by the rail, and is non-rotatably mounted around the rail, and the hanger member is A fall-preventing mechanism provided with a holding plate that is attached to the base and pivots downward by contacting the rail fixing piece from above and prevents rotation when the rail fixing piece contacts from below. Furthermore, it may be characterized by having "

  According to the present invention, since the hanger member can be lifted and lowered via the base portion, the hanger member can be lifted and lowered to an arbitrary height in the scaffold without removing the hanger member from the rail member. It can be moved easily. At that time, in the fall prevention mechanism, when the rail fixing piece abuts on the holding plate, the holding plate rotates downward, so that the rail fixing piece is moved upward without removing the hanger member from the rail. be able to. On the other hand, when the rail fixing piece abuts from below the holding plate, the holding plate does not rotate, so that the hanger member can be prevented from moving below the rail fixing piece. Accordingly, since the hanger member can be freely moved upward while preventing the hanger member from falling by the fall prevention mechanism, the height of the scaffold is increased or decreased depending on the progress state. Even at a construction site, it can be easily handled and can be a highly safe material transport lift.

Furthermore, the material transport lift according to the present invention has, in addition to the above configuration, “the hanger member is
It may further include a rod-shaped lock member that abuts on the rail fixing piece and penetrates the base portion ”.

  Thereby, since the lock member abuts on the rail fixing piece by setting the lock member of the hanger member to pass through the base portion, it is possible to prevent the hanger member from falling along the rail. Moreover, when used together with the fall prevention mechanism, a safer material transport lift can be obtained.

  Thus, according to this invention, the material conveyance lift which can be easily installed in the construction site etc. which use a scaffold can be provided.

It is a perspective view showing the whole material conveyance lift which is one embodiment of the present invention. It is a perspective view which shows the hanger member in the material conveyance lift of FIG. (A) is a top view of the hanger member of FIG. 2, (b) is a bottom view which shows a part of hanger member. It is a rear view which shows a part of hanger member of FIG. It is a perspective view which shows the upper slide member in the slide member of the material conveyance lift of FIG. It is explanatory drawing which shows an example of the use condition in the material conveyance lift of FIG.

  A material transport lift 1 according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 6. The material conveyance lift 1 of this embodiment conveys materials, such as a scaffold member for building the scaffold A, a building member, etc. by fixing to the scaffold A assembled in the construction site etc.

  The material transport lift 1 of the present embodiment includes a rail member 10 fixed in a state of extending vertically with respect to the scaffold A, a hanger member 20 attached to an upper portion of the rail member 10, and a lower side than the hanger member 20. The slide member 40 is attached by the rail member 10 so as to be movable up and down, and the box-shaped loading platform 60 attached to the slide member 40 is provided. In the material transport lift 1, the chain block H is attached to the hanger member 20, and the chain C extending from the chain block H is attached to the slide member 40 (upper slide member 40A). As a result, by lifting or lowering the chain C by the chain block H, the loading platform 60 can be raised or lowered via the slide member 40.

  Next, each configuration of the material transport lift 1 will be described in detail. As shown in FIGS. 1 and 3, the rail member 10 includes a rail 11 having a quadrangular cross section and extending vertically, and a plurality of rail members 10 extending from the rail 11 in a direction perpendicular to the rail 11 at intervals in the longitudinal direction. Rail fixing piece 12 and a fixing clamp 13 provided at the tip of the rail fixing piece 12. The rail 11 is formed in a rectangular tube shape, and has a connecting portion 11a protruding in the longitudinal direction at the upper end. This connection part 11a is comprised by a pair of board body extended on the diagonal of the inner periphery of a square tube. The rail fixing piece 12 has a U-shaped cross section, and extends from one vertex in plan view on the rail 11 to a diagonal extension. The fixed clamp 13 is configured by a known clamp that can sandwich a pipe member that forms the scaffold A. The rail member 10 of the present embodiment can be connected up and down by inserting the connecting portion 11 a at the upper end of the rail 11 into the lower end of the other rail 11.

  Next, the hanger member 20 will be described. As shown in FIG. 2, the hanger member 20 includes a pair of base portions 21 that are attached to the rail member 10 so as to be spaced apart from each other vertically, a cylindrical shaft portion 22 having an upper end and a lower end fixed by the pair of base portions 21, A rectangular tube-shaped outer tube portion 23 that is rotatably fitted to the portion 22, a rectangular tube-shaped block mounting portion 24 that extends horizontally from the upper portion of the outer tube portion 23, and a tip of the block mounting portion 24 And an annular hanger hook 25 attached thereto. Further, the hanger member 20 includes a rod-shaped lock member 26 that contacts the rail fixing piece 12 of the rail member 10, an auxiliary hook 27 for preventing the hanger member 20 from falling by being connected to the scaffold A with a rope or the like, and a hanger member. 20 (base portion 21), and a fall prevention mechanism 30 for preventing the fall. The lock member 26, the auxiliary hook 27, and the fall prevention mechanism 30 are provided on the upper base 21.

  As shown in FIGS. 1 and 3, the base portion 21 has a flat plate-like base portion 21 a extending along a horizontal plane, and passes through the base portion 21 a and is open to one side, and the rail member 10 extends in the vertical direction. A cutout portion 21b through which (the rail 11 and the rail fixing piece 12) can pass, and a rectangular tube-like coupling portion 21c that is fixed to the side of the base portion 21a opposite to the open side of the cutout portion 21b and extends vertically. And four guide rollers 21d attached to the lower surface of the base portion 21a and capable of rolling on the four outer surfaces of the rail 11, respectively, and the rail member 10 passing through the notch portion 21b from the upper surface of the base portion 21a. And a wall portion 21e extending upward.

  As shown in FIG. 3, the notch portion 21 b of the base portion 21 is formed so that the opened side is narrower than the rail 11 in the portion through which the rail fixing piece 12 passes. Thereby, the rail 11 inserted in the notch 21b is prevented from coming off from the opened side. Moreover, the coupling | bond part 21c is being fixed to the base part 21a in the state extended up and down. Further, the wall portion 21e is opened on the side where the cutout portion 21b is opened, extends in parallel with the cutout portion 21b, and the other side is connected to the coupling portion 21c. The base portion 21 can be moved (movable up and down) along the rail 11 by the four guide rollers 21d, and can be non-rotatably attached around the rail 11.

  The upper base portion 21 is formed outside a portion extending in parallel with each other on the open end side of the wall portion 21e, and a pair of support plates 21f for supporting the lock member 26, the support plate 21f and the wall portion 21e. And a lock hole 21g through which the lock member 26 can pass.

  The shaft portion 22 has an upper end and a lower end inserted into the coupling portion 21c of the upper and lower base portions 21, respectively. On the upper end side of the shaft portion 22, a bolt 22a penetrates from the outside of the coupling portion 21c, and is fastened and fixed by a nut 22b screwed to the tip of the bolt 22a. The lower end side of the shaft portion 22 is fixed to the coupling portion 21c by welding or the like with the fixing pin 22c penetrating from the outside of the coupling portion 21c. The shaft portion 22 extends in parallel with the rail 11 by being attached to the coupling portion 21 c of the upper and lower base portions 21.

  The outer cylinder portion 23 is externally fitted to the shaft portion 22 between the coupling portions 21 c of the upper and lower base portions 21. Thereby, the outer cylinder part 23 can be rotated by the cylindrical shaft part 22. Further, the block mounting portion 24 includes a pair of reinforcing plates 24 a that extend obliquely from the middle portion in the longitudinal direction toward the lower portion of the outer cylinder portion 23. The block attachment portion 24 is fixed to the outer cylinder portion 23 by welding.

  The lock member 26 is formed in an L shape as a whole, and is inserted into a lock hole 21g formed in the wall portion 21e of the base portion 21 and the support plate 21f. In addition, although illustration is abbreviate | omitted, the lock member 26 is provided with the retaining for preventing pulling out from the lock hole 21g of the support plate 21f. The lock member 26 can be brought into contact with the rail fixing piece 12 by penetrating the support plates 21f and the wall portions 21e on both sides, and between the support plates 21f (the portion where the notch portion 21b is opened) between the rails. The rail fixing piece 12 of the member 10 can be prevented from passing, and the hanger member 20 can be prevented from falling to the lower end of the rail 11. As shown in the figure, the auxiliary hook 27 extends upward from the coupling portion 21c in the upper base 21, and is formed in an inverted U shape.

  The fall prevention mechanism 30 includes a flat holding plate 31 that can be brought into contact with the rail fixing piece 12 of the rail member 10, a rotary shaft 32 that rotatably supports the holding plate 31, and a parallel to the rotary shaft 32. A restricting member 33 that is disposed and restricts the rotation position of the holding plate 31 and a retaining pin 34 that prevents the holding plate 31 from coming off the rotation shaft 32 are provided. As shown in FIG. 4, the holding plate 31 of the fall prevention mechanism 30 includes a shaft hole 31a through which the rotation shaft 32 is inserted, a contact piece 31b extending from the shaft hole 31a to the regulating member 33, and a contact piece 31b. The operation piece portion 31c extending longer than the contact piece portion 31b from the peripheral edge of the shaft hole 31a in a direction substantially perpendicular to the contact piece portion 31b, and the operation piece portion 31c are in contact with the shaft hole 31a in the opposite direction. A return piece 31d extending in a direction away from the piece 31b and shorter than the restriction member 33. The holding plate 31 may include a hook 31e at the tip of the operation piece 31c. Each of the rotating shaft 32 and the regulating member 33 is formed in a columnar shape, with the tip extending outward from the open end of the wall 21e at the upper end of the pair of support plates 21f in the wall 21e. Each is installed.

  In the normal state, the fall prevention mechanism 30 has the contact piece 31b at the tip thereof in contact with the lower side of the regulating member 33. Thereby, when the hanger member 20 descends, the lower side of the abutting piece portion 31b of the holding plate 31 abuts on the rail fixing piece 12 of the rail member 10, and the hanger member 20 can be prevented from descending. On the other hand, when the hanger member 20 is raised, the upper side of the contact piece portion 31b comes into contact with the rail fixing piece 12, so that the contact piece portion 31b rotates downward and the hanger member 20 exceeds the rail fixing piece 12. Can be moved upward.

  When the hanger member 20 is lowered from the rail fixing piece 12, the tip of the contact piece 31b moves downward so that the contact piece 31b and the rail fixing piece 12 do not contact (in FIG. 4). The operation piece 31c (holding plate 31) is rotated in the direction of the arrow. By the way, when the contact piece portion 31b is rotated so as not to contact the rail fixing piece 12, the return piece portion 31d is positioned above the rail fixing piece 12 as shown by a two-dot chain line in FIG. When the hanger member 20 is lowered in this state, the rail fixing piece 12 comes into contact with the return piece portion 31d from the lower side, so that the holding plate 31 rotates in the reverse direction via the return piece portion 31d, and returns to the normal state. Return. Accordingly, when the hanger member 20 is dropped in a state where the contact piece 31b does not contact the rail fixing piece 12 for some reason, the fall prevention mechanism 30 has the return piece 31d as the rail fixing piece 12 as described above. The rail fixing piece 12 is brought into contact with the contact piece portion 31b from below after the start of dropping, so that the hanger member 20 can be prevented from dropping. . The fall prevention mechanism 30 may be provided on a hanger member different from the present embodiment in which the outer cylinder portion 23, the block attachment portion 24, and the hanger hook 25 do not rotate.

  Next, the slide member 40 will be described. As shown in FIG. 5, the slide member 40 includes an upper slide member 40 </ b> A to which the upper portion of the loading platform 60 is attached and a lower slide member 40 </ b> B to which the lower portion of the loading platform 60 is attached. First, the upper slide member 40A will be described. The upper slide member 40A includes a base 41 that is guided by the rail 11 and spaced apart from the upper and lower sides, and a rectangular tube-like coupling member 42 that joins the bases 41 and has an upper end extending upward from the upper base 41. A square cylindrical chain mounting portion 43 extending horizontally from the upper end of the coupling member 42, an inverted U-shaped chain hook 44 mounted on the distal end side of the chain mounting portion 43, and outward from the coupling member 42. And a mounting piece 45 for mounting the loading platform 60 in a flat plate shape.

  The upper slide member 40A includes a bar-like lock member 46 provided on the upper base 41 and fixed to the rail member 10 at an upper and lower position, and an auxiliary guide that surrounds the outer periphery of the rail 11 and is attached to the upper end of the coupling member 42. 47. Further, the upper slide member 40A moves from a position where the upper base 41 of the coupling member 42 is fixed to a position between a base end fixed to the coupling member 42 and a position where the chain hook 44 is attached in the chain attachment part 43. A pair of reinforcing plates 48 extending obliquely toward the upper end and extending upward from the chain attachment portion 43 are provided. The upper slide member 40A includes a spacer member 49 disposed between the pair of reinforcing plates 48 on the upper side of the chain mounting portion 43, a fixing pin 50 penetrating the spacer member 49 and the pair of reinforcing plates 48, and a coupling member. And a coil spring 51 that is bridged obliquely between 42 and the chain attachment portion 43.

  The base 41 has a flat plate-like base 41a extending along a horizontal plane, a notch 41b that passes through the base 41a and is open to one side so that the rail member 10 can pass in the vertical direction. The four guide rollers 41c attached to the lower surface of the portion 41a and capable of rolling on the four outer surfaces of the rail 11, respectively, and the rail member 10 that has passed through the notch portion 41b from the upper surface of the base portion 41a upward. And an extended wall portion 41d. The base 41 has substantially the same configuration as the base 21 of the hanger member 20.

  The notch 41b of the base 41 is formed so that the open side at the portion through which the rail fixing piece 12 passes is narrower than the rail 11, so that the rail 11 inserted into the notch 41b comes out from the opened side. Is prevented. The wall 41d opens on the side where the notch 41b is open, extends in parallel with the notch 41b, and is connected to the coupling member 42 on the other side. The base 41 can be moved (movable up and down) along the rail 11 by the four guide rollers 41c, and can be attached around the rail 11 so as not to rotate.

  The upper base 41 is formed outside a portion extending parallel to each other on the open end side of the wall 41d, and includes a pair of support plates 41e for supporting the lock member 46, a support plate 41e, and a wall 41d. And a lock hole 41f through which the lock member 46 can pass.

  The attachment piece 45 is formed with a plurality of (here, three) through holes 45a arranged vertically. The lock member 46 is formed in an L shape as a whole, and is inserted into a lock hole 41f formed in the wall portion 41d of the base portion 41 and the support plate 41e. In addition, although illustration is abbreviate | omitted, the lock member 46 is provided with the retaining for preventing pulling out from the lock hole 41f of the support plate 41e. The lock member 46 has a function similar to that of the lock member 26 of the hanger member 20 and can be brought into contact with the rail fixing piece 12 of the rail member 10 by penetrating the support plate 41e. The fall of the loading platform 60) can be prevented. When the loading platform 60 is raised and lowered, the lock member 46 is pulled out from one of the support plates 41e, and the tip is supported only by the support plate 41e that is bent in an L shape and is close to the base end side, that is, the lock is released. State (see FIG. 5).

  The auxiliary guide 47 has a flat plate-shaped base portion 47a fixed to the upper end of the coupling member 42, and a cutout portion that passes through the base portion 47a and is open to one side so that the rail member 10 can pass in the vertical direction. 47b and a wall 47c extending upward from the upper surface of the base 47a so as to surround the rail member 10 that has passed through the notch 47b. The cutout portion 47 b of the auxiliary guide 47 is formed in the same shape as the cutout portions 21 b and 41 b of the base portions 21 and 41. Further, the wall 47 c is connected to the chain attachment portion 43 on the other side.

  As shown in FIG. 1, the lower slide member 40 </ b> B in the slide member 40 of the present embodiment has a single base portion 41 guided by the rail 11 and a rectangular tube shape fixed in parallel to the rail 11 with respect to the base portion 41. An attachment support member 52 and an attachment piece 45 that extends outward from the attachment support member 52 in a flat plate shape and attaches the loading platform 60 are provided. In the lower slide member 40B, the base 41 has the same configuration as the lower base 41 of the upper slide member 40A, and the mounting piece 45 has the same configuration as the mounting piece 45 of the upper slide member 40A. The description is omitted. The attachment support member 52 is fixed to the base 41 in a state of extending downward from the base 41.

  In the upper slide member 40A shown in FIGS. 1 and 5, the chain attachment portion 43 extends toward the side opposite to the side where the notch portion 41b of the base portion 41 is opened, that is, the outer surface of the scaffold A. Although the example extended in the direction away from was shown, it is not limited to this, It is good also as the chain attaching part 43 extended substantially parallel to the outer surface of the scaffold A, as shown in FIG.

  Here, the base 41 and the coupling member 42 of the slide member 40 in the present embodiment correspond to the slide portion of the present invention.

  Next, the loading platform 60 will be described. As shown in FIG. 1, the loading platform 60 is formed in a rectangular parallelepiped shape that is long in the vertical direction. The loading platform 60 includes four strut members 61 extending vertically, a lower collar portion 62 and an upper collar portion 63 that are spaced apart from each other and supported by the four strut members 61, and a flat plate outward from the one strut member 61. And a to-be-attached piece 64 extending in a shape.

  The lower collar portion 62 and the upper collar portion 63 are a bottom wall member 65 formed in a square shape in plan view, a pair of long wall members 66 forming an outer circumference surface on the long side in plan view, and an outer circumference surface on the short side in plan view. And a pair of short wall members 67, which are formed in a box shape with the top opened. ing. The bottom wall member 65, the long wall member 66, and the short wall member 67 are supported by the column member 61 on the sides extending vertically. The bottom wall member 65, the long wall member 66, and the short wall member 67 are formed in a net shape.

  In the lower collar portion 62, the bottom wall member 65, the long wall member 66, and the short wall member 67 are fixed to the column member 61 so as not to be attached and detached. On the other hand, the upper collar portion 63 includes a pair of long wall members 66 and a pair of short wall members 67, in which the adjacent long wall member 66 and the short wall member 67 are fixed to the column member 61 so as not to be detachable. The remaining adjacent long wall member 66 and short wall member 67 are detachably attached to the column member 61. The upper collar 63 is supported by the support member 61 so that the side of the bottom wall member 65 adjacent to the long wall member 66 fixed to the column member 61 is pivotally supported, and the remaining side is only upward. The support member 61 is movably supported. Thereby, the upper collar part 63 can raise the bottom wall member 65 in the state parallel to the long wall member 66 fixed to the support | pillar member 61 by rotating the bottom wall member 65. That is, in the loading platform 60, the upper collar portion 63 can be in a state without a bottom wall, and a long material that penetrates the upper collar portion 63 from the lower collar portion 62 can be accommodated.

  In the loading platform 60 of this embodiment, when the long wall member 66 that can be attached and detached in the upper collar portion 63 is directed to the scaffold A, the long wall member 66 and the short wall member 67 that cannot be attached and detached are adjacent to each other. A mounting piece 64 is provided on the base plate. Therefore, the short wall member 67 detachably attached to the upper collar portion 63 is attached at a position away from the slide member 40 (rail member 10). Thereby, by attaching the loading platform 60 to the slide member 40, the long wall member 66 facing the scaffold A of the upper collar portion 63 can be removed, and materials can be easily taken in and out. Moreover, since the short wall member 67 on the side away from the rail member 10 in the upper collar portion 63 can be removed, the material can be easily taken in and out from the short wall member 67 side without being obstructed by the rail member 10. .

  The attached pieces 64 are respectively provided on the upper and lower portions of the column member 61. Although not shown, the attached piece 64 includes a plurality of through holes formed vertically at the same interval as the interval between the plurality of through holes 45 a formed in the attachment piece 45 of the slide member 40. The loading platform 60 can be attached to the slide member 40 by inserting bolts and pins with the through holes of the attached piece 64 and the through holes 45a of the attaching piece 45 being aligned.

  Next, attachment of the material transport lift 1 of the present embodiment to the scaffold A will be described. First, the fixing clamp 13 of the rail member 10 is fixed in order from the lower side to the scaffolding pipe that extends vertically to construct the scaffolding A. In addition, according to the height which conveys material, a required number of rail members 10 are connected to the upper side using the connection part 11a. When the rail member 10 is extended upward along the scaffold A, the base portion 41 of the slide member 40 (the upper slide member 40A and the lower slide member 40B) is inserted into the rail 11 of the rail member 10 so that the slide member 40 is moved to the rail member 10. The loading platform 60 is attached to the slide member 40.

  Subsequently, the base 21 of the hanger member 20 is inserted from the upper end of the rail member 10 fixed to the scaffold A, and the hanger member 20 is supported with respect to the rail member 10. And let the lock member 26 of the hanger member 20 be the state penetrated between a pair of plate body which comprises the rail fixing piece 12 of the rail member 10. FIG. As a result, the hanger member 20 is attached to the rail member 10. In this state, the chain block H is attached to the hanger hook 25 of the hanger member 20, and the tip of the chain C extending from the chain block H is attached to the chain hook 44 of the slide member 40. Thereby, the attachment of the material conveyance lift 1 to the scaffold A is completed.

  When the hanger member 20 is moved upward along the rail 11, the hanger member 20 is moved upward in a state where the lock by the lock member 26 is released. Even when the hanger member 20 moves upward, even if the contact piece 31b of the holding plate 31 comes into contact with the rail fixing piece 12 of the rail member 10 from above in the fall prevention mechanism 30, the holding plate 31 does not rotate. Since it rotates around and the tip of the contact piece 31b moves downward, it can be moved upward without obstructing the movement of the hanger member 20.

  On the other hand, when the hanger member 20 is moved downward along the rail 11, the lock by the lock member 26 is released, and the holding plate 31 of the fall prevention mechanism 30 is rotated so that the contact piece 31b becomes the rail fixing piece. 12 is moved downward in a state in which it does not contact 12. When the operator directly operates the operation piece portion 31 c by hand to rotate the holding plate 31, the operator moves downward as the hanger member 20 descends, and the holding plate 31 is moved in each rail fixing piece 12. It is necessary to rotate. On the other hand, in the case of the holding plate 31 provided with the hook 31e, the rope having one end hooked on the hook 31e is, for example, the lower part of the scaffold A via the part above the hanger member 20 in the scaffold A. Hang down. And the operator arrange | positioned at the lower part of the scaffold A rotates the holding | maintenance board 31 via the hook 31e by pulling the rope below, and while releasing the lock | rock by the contact piece part 31b, the hook 31e is used. The hanger member 20 is moved downward while being suspended with a rope. Thereby, even one worker can easily move the hanger member 20 downward.

  By the way, when a heavy material is put on the loading platform 60 or when the large loading platform 60 is attached by the slide member 20, the slide mounting member 24 is substantially parallel to the outer surface of the scaffold A as shown in FIG. It rotates so that it may extend to the same side as the loading platform 60 attached to 40 (illustration, arrow direction). On the other hand, in the slide member 40, the upper slide member 40 </ b> A having a chain attachment portion 43 that is substantially parallel to the outer surface of the scaffold A and extends to the same side as the loading platform 60 is attached to the rail member 10. As a result, the chain C attached to the chain attaching portion 43 can apply a force that lifts the side opposite to the portion attached to the slide member 40 to the loading platform 60 via the slide member 40, thereby increasing the amount of heavy material. Or a large cargo bed 60.

  Thus, according to the material conveyance lift 1 of this embodiment, since the loading platform 60 is moved up and down via the slide member 40 by the one rail member 10 extended up and down, the scaffolding is U-shaped as in the past. It is not necessary to assemble it into a shape, and it can be easily installed only by fixing the rail member 10 to the scaffold A. Moreover, since the material conveyance lift 1 can be installed if the space of the loading platform 60 can be ensured, it can be set as the material conveyance lift 1 which can respond to various construction sites.

  In addition, since only one of the four support members 61 extending vertically in the loading platform 60 is attached to the slide member 40, the slide member 40 and the rail member 10 are used when the material is taken in and out of the loading platform 60. The material can be easily taken in and out without obstruction.

  Furthermore, since the block attaching part 24 of the hanger member 20 can be rotated in the outer cylinder part 23 fitted on the cylindrical shaft part 22, the chain block H can be attached to or removed from the block attaching part 24. By rotating the block mounting portion 24 toward the scaffold A side, the chain block H can be mounted as close to the scaffold A as possible, and the chain block H can be mounted or removed. Can improve the safety.

  Further, since the position of the chain block H can be changed by rotating the block mounting portion 24 of the hanger member 20, what is the portion attached to the slide member 40 with respect to the loading platform 60 via the slide member 40 by the chain C? It is possible to apply a force that lifts the opposite side. Therefore, since the uneven load applied to the slide member 40 and the rail member 10 can be reduced, the loading platform 60 can be easily enlarged or a heavy material can be transported according to the construction site, etc. It can be set as the high material conveyance lift 1. FIG.

  Moreover, since the hanger member 20 can be raised / lowered via the base 21, the hanger member 20 can be easily positioned at an arbitrary height in the scaffold A without removing the hanger member 20 from the rail member 10. it can. At that time, the lock member 26 of the hanger member 20 is in a state of penetrating the base portion 21 and in a state of penetrating the pair of support plates 21f and the rail fixing piece 12, so that the lock member 26 is in the rail fixing piece. 12, the hanger member 20 can be prevented from falling along the rail 11. Therefore, even in a construction site where the height of the scaffold A becomes higher or lower depending on the progress, it is possible to easily cope with the material transport lift 1 with high safety.

  Furthermore, in the hanger member 20, since it can prevent falling with the fall prevention mechanism 30 besides the lock member 26, it can be set as the material conveyance lift 1 with higher safety | security. Further, when the hanger member 20 is attached to the rail member 10, the hanger member 20 is held at a predetermined position by the fall prevention mechanism 30 so that the locking operation by the lock member 26 can be facilitated. Thus, the material transport lift 1 can be easily installed.

  The present invention has been described with reference to the preferred embodiments. However, the present invention is not limited to the above-described embodiments, and various improvements can be made without departing from the scope of the present invention as described below. And design changes are possible.

  For example, in the above-described embodiment, an example is shown in which two types of upper slide members 40A (see FIGS. 5 and 6) in which the extending direction of the chain attachment portion 43 is different correspond to a heavy material or a large loading platform 60. However, the present invention is not limited to this, and the upper slide member 40A can be railed in either a state where the chain mounting portion 43 extends in a direction away from the scaffold A or a state where the upper slide member 40A extends substantially parallel to the outer surface of the scaffold A. It may be attached to the member 10. Alternatively, the chain attachment portion 43 of the upper slide member 40A may be rotatably supported with respect to the pair of base portions 41, like the block attachment portion 24 of the hanger member 20.

DESCRIPTION OF SYMBOLS 1 Material conveyance lift 10 Rail member 11 Rail 12 Rail fixed piece 20 Hanger member 21 Base part 22 Shaft part 23 Outer cylinder part 24 Block attachment part 25 Hanger hook 26 Lock member 30 Holding mechanism 31 Holding plate 40 Slide member 40A Upper slide member 40B Lower Slide member 41 Base (slide part)
42 Connecting member (sliding part)
43 Chain mounting portion 44 Chain hook 45 Mounting piece 46 Lock member 47 Auxiliary guide 60 Loading platform 61 Column member 62 Lower collar portion 63 Upper collar portion A Scaffolding H Chain block C Chain

Japanese Patent No. 4397431

Claims (3)

A rail member having a rail having a polygonal cross section and a plurality of rail fixing pieces extending from the rail and fixed to a scaffold at a predetermined interval;
A pair of bases attached to the upper portion of the rail member so as to be spaced apart from each other, a pair of the bases, the upper end and the lower end being fixed by the pair of bases, and a shaft portion extending in parallel with the rail, and being rotatably attached to the shaft portion A hanger member having a fitted cylindrical outer cylinder part, and a block attaching part that extends horizontally from the outer cylinder part and to which a chain block is attached at the tip;
A slide part that can be moved up and down by the rail at a position below the hanger member and that is non-rotatably mounted around the rail, and that extends horizontally from the slide part, and a chain from the chain block is at the tip. A slide member having a chain attachment portion to be attached;
A material transport lift, comprising: a box that is formed in a box shape that opens upward, and that is mounted on the slide member on one side that extends vertically. The base is
Can be moved up and down by the rail and non-rotatably mounted around the rail; and
The hanger member is
A fall prevention mechanism provided with a holding plate attached to the base, which rotates downward by contacting the rail fixing piece from above and prevents rotation by contacting the rail fixing piece from below. The material transfer lift according to claim 1, further comprising: The hanger member is
The material transport lift according to claim 2, further comprising a rod-shaped lock member that abuts on the rail fixing piece and penetrates the base portion.

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