Footing stage

Abstract

To provide a footing stage with a configuration capable of having a top board detached and replaced with another board that can be compact and handy.SOLUTION: A footing stage 10 comprises a frame body 1 formed into a rectangular shape in plan view, a pair of ladder bodies 2 rotatably arranged at both longitudinal ends of the frame body 1, and a top board 3 that is detachably attached to the frame body 1. The frame body 1 comprises a pair of end support parts 11 that are arranged at both longitudinal ends of the frame body 1 to support both end parts of the top board 3, and middle support parts 13 that are arranged in the longitudinally middle part of the frame body 1 to support middle parts of the top board 3. The frame body 1 is configured, with the top board 3 removed, to allow assembly thereto of multiple sheets of sectioned top boards 8 that are smaller than the top board 3. The sectioned top board 8 has, when assembled to the frame body 1, its end parts supported with the end support part 11 and the middle support part 13.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a scaffolding base including a pair of ladder bodies and a top plate.

Background Art

[0002] Conventionally, a technique for making the top plate detachable from a scaffolding base including a ladder body and a top plate has been known (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the scaffolding base as in Patent Document 1, since the top plate is used for the user to climb up with muddy feet, it is necessary to replace the top plate when using the scaffolding base for other purposes such as eating. However, when configured to remove the top plate and replace it with another top plate of the same size, there is a problem that the replacement top plate is bulky and difficult to carry.

[0005] The present invention has been made in view of the above circumstances, and the problem to be solved by the present invention is to provide a scaffolding base that enables other top plates to be made compact and easy to carry in a configuration where the top plate can be removed and replaced with another top plate.

Means for Solving the Problems

[0006] Hereinafter, means for solving the above problems will be described.

[0007] The scaffolding base according to the present invention includes a frame formed in a rectangular shape in plan view, a pair of ladder bodies rotatably provided at both longitudinal ends of the frame, and a top plate detachably attached to the frame. The frame includes a pair of end support portions provided at both longitudinal ends of the frame to support both ends of the top plate, and at least one middle support portion provided at an intermediate portion in the longitudinal direction of the frame to support an intermediate portion of the top plate. The frame is configured such that a plurality of divided top plates smaller than the top plate can be assembled in a state where the top plate is removed, and when the divided top plates are assembled to the frame, their ends are supported by the end support portions or the middle support portions.

[0008] Further, in the scaffolding base according to the present invention, it is preferable that at least one notch portion is formed on the lower side of the top plate, and when the top plate is assembled to the frame, the middle support portion is inserted into the notch portion.

[0009] Further, in the scaffolding base according to the present invention, it is preferable that a regulating member is provided to regulate displacement in a direction in which the top plate and the middle support portion move away from each other.

[0010] Further, in the scaffolding base according to the present invention, it is preferable that an insertion portion for inserting the regulating member is formed on the lower surface of the top plate.

[0011] Further, in the scaffolding base according to the present invention, it is preferable that a positioning portion for regulating horizontal displacement of the divided top plate is formed on at least one of the end support portion and the middle support portion.

[0012] Further, in the scaffolding base according to the present invention, it is preferable that a groove portion for attaching another member is formed on the middle support portion and / or the divided top plate.

[0013] Further, in the scaffold base according to the present invention, the top plate is formed in a rectangular shape along the frame body, and a pair of support frames that can advance and retreat toward the outside in the longitudinal direction of the top plate are provided at both ends in the longitudinal direction of the top plate. When the pair of support frames are extended on the top plate, it is preferable that the pair of support frames can be placed on any of the opposing treads in the pair of ladder bodies.

[0014] Further, in the scaffold base according to the present invention, the top plate is formed in a rectangular shape along the frame body, and it is preferable that locking pieces that can be locked to the frame body are provided at both ends in the longitudinal direction of the top plate.

[0015] Further, in the scaffold base according to the present invention, it is preferable that the locking piece is rotatable between a locking posture in which it is locked to the frame body and a non-locking posture in which it is not locked to the frame body.

[0016] Further, in the scaffold base according to the present invention, the locking piece is fixed to the top plate via a fixing screw, and it is preferable that the rotation direction of the fixing screw when fixing the locking piece with the fixing screw and the rotation direction when rotating the locking piece from the non-locking posture to the locking posture coincide.

Advantages of the Invention

[0017] According to the scaffold base of the present invention, in a configuration in which the top plate can be removed and exchanged with another top plate, there is an effect that it is possible to make the other top plate compact and easy to carry.

Brief Description of the Drawings

[0018]

Figure 1

Figure 2

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Figure 8

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Figure 10

Figure 11

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Figure 14

Figure 15

Figure 16

Figure 17

Mode for Carrying Out the Invention

[0019] [Scaffolding base 10] First, with reference to FIGS. 1 to 7, the scaffolding base 10 according to an embodiment of the present invention will be described. In the scaffolding base 10 described in this specification, the rotation axis direction of the ladder bodies 2·2 (the laying direction of the treads 4) in each figure is defined as the left-right direction of the scaffolding base 10, and the direction orthogonal to the left-right direction in the horizontal direction (the opening and closing direction of the ladder bodies 2·2) is defined as the front-rear direction of the scaffolding base 10.

[0020] As shown in Fig. 1, the scaffold base 10 according to this embodiment includes a frame body 1 formed in a rectangular shape in plan view, a pair of ladder bodies 2·2 rotatably provided at both ends in the longitudinal direction (front-rear direction of the scaffold base 10) of the frame body 1, and a plate-shaped top plate 3 detachably attached to the frame body 1. In the scaffold base 10 according to this embodiment, the frame body 1, the ladder bodies 2·2, and the top plate 3 are mainly composed of light metal parts made of aluminum or an aluminum alloy.

[0021] As shown in Figs. 2 and 3, the frame body 1 is formed in a rectangular shape in plan view by two end support parts 11·11 provided at both ends in the longitudinal direction of the frame body 1 and two long frames 12·12 provided at both ends in the short direction of the frame body 1. Also, two middle support parts 13·13 for connecting the opposing long frames 12·12 are provided in the middle of the longitudinal direction of the frame body 1.

[0022] The upper ends of the pair of ladder bodies 2·2 are rotatably connected to both ends in the longitudinal direction of the frame body 1 by hinges 6·6. Specifically, the hinge 6 rotatably connects the frame body 1 and the ladder body 2 so that the ladder body 2 approaches the frame body 1 (see Fig. 3).

[0023] Each ladder body 2 includes a pair of columns 5·5 that are long bodies. The columns 5·5 are arranged in a substantially inverted V shape in front view so that the distance between them is larger at the lower side than at the upper side. The scaffold base 10 according to this embodiment includes four columns 5. Each column 5 is formed in a shape bent at two locations along the longitudinal direction for the purpose of ensuring strength and the like, and the cross-sectional shape perpendicular to the longitudinal direction is substantially U-shaped.

[0024] Each column 5 is provided with a telescopic leg 5a that can advance and retreat in the longitudinal direction of the column 5. By adjusting the extension length of the telescopic leg 5a from the column 5, the height of the top plate 3 in the scaffold base 10 can be adjusted (see the phantom line shown in Fig. 2). In the scaffold base 10 according to this embodiment, an end fitting is fixed to the lower end of the telescopic leg 5a.

[0025] Between a pair of columns 5·5 in the ladder body 2, a plurality of rungs 4·4···, which are hollow cylindrical members, are spanned at a predetermined interval. The rung 4 is formed by cutting a linear extrusion molded product having a predetermined cross-sectional shape to a predetermined length. Each rung 4 is fixed between the opposing columns 5·5 by a fixture.

[0026] The scaffold base 10 can mainly take the following two forms according to the angle formed by the ladder body 2 with respect to the frame body 1. The first form of the scaffold base 10 is a form in which the ladder bodies 2·2 are separated from the frame body 1 as shown in FIG. 1, and the scaffold base 10 is supported by four columns 5 (hereinafter, this form will be described as the "use state"). The scaffold base 10 in the use state is used in a state of standing independently on the ground or the floor. In the scaffold base 10, the hinge 6 is provided with a locking mechanism 6a for restricting the rotation of the ladder bodies 2·2 with respect to the frame body 1 in the use state.

[0027] The second form of the scaffold base 10 is a form in which the ladder bodies 2·2 are brought close to the frame body 1 as shown in FIG. 3 (hereinafter, this form will be described as the "storage state"). The storage state of the scaffold base 10 is mainly adopted during storage or transportation.

[0028] In the scaffold base 10 according to the present embodiment, the top plate 3 is configured by combining a plate member 30 whose front, rear, left, and right ends are bent downward, an insertion portion 32 having a U-shaped cross-section fixed to the lower surface of the plate member 30, a fixing belt 33 which is a regulating member for regulating the relative displacement between the top plate 3 and the frame body 1, and the like.

[0029] In the scaffold base 10 according to the present embodiment, both longitudinal ends of the top plate 3 are supported by the end support portions 11·11 in the frame body 1. Specifically, as shown in FIG. 4, the end support portion 11 is formed with a support piece 11a extending inward in the front-rear direction (toward the side of the opposing end support portion 11). By placing the longitudinal end of the top plate 3 on the support piece 11a, the end of the top plate 3 is supported by the end support portion 11.

[0030] Also, the middle part in the longitudinal direction of the top plate 3 is supported by the middle support parts 13·13 in the frame body 1. As shown in Fig. 2, cutouts 31·31 are formed at positions corresponding to the middle support parts 13·13 on the lower side of the side edges of the plate member 30 of the top plate 3. When the top plate 3 is assembled to the frame body 1, as shown in Fig. 4, the middle support part 13 is inserted into the cutout 31.

[0031] As shown in Fig. 4, a recess 31a is formed at the upper part of the cutout 31. Also, on the upper surface of the middle support part 13, a positioning part 13a protruding upward is formed along the longitudinal direction of the middle support part 13. When the top plate 3 is assembled to the frame body 1 and the middle support part 13 is inserted into the cutout 31, the positioning part 13a is inserted into the recess 31a.

[0032] As shown in Figs. 2 and 4, groove parts 13b for attaching other members are formed on the front-rear direction side surfaces of the middle support part 13. Specifically, by inserting a nut member (not shown) into the groove part 13b, it becomes possible to attach other members via a bolt member screwed into this nut member. Also, it is also possible to attach other members by directly locking a hook-shaped bracket or the like to the groove part 13b.

[0033] In the scaffold base 10 according to this embodiment, two inserted parts 32·32 are fixed downward at positions corresponding to the middle support parts 13·13 on the lower surface of the top plate 3. When the top plate 3 is assembled to the frame body 1, as shown in Fig. 4, the middle support part 13 is inserted inside the inserted part 32. By inserting the middle support part 13 inside the inserted part 32, displacement of the top plate 3 with respect to the frame body 1 can be suppressed.

[0034] In the scaffold base 10 according to this embodiment, a fixing belt 33 is provided as a regulating member that regulates displacement in a direction in which the top plate 3 and the middle support part 13 move away from each other. Specifically, as shown in Fig. 4, between the lower surface of the plate member 30 of the top plate 3 and the inserted part 32, it is formed as an insertion part for inserting the fixing belt 33.

[0035] One end of the fixed belt 33 is fixed with a belt locking member 34. Also, on the other end side of the fixed belt 33, a surface fastener 35 composed of a first surface fastener 35a and a second surface fastener 35b is fixed.

[0036] When fixing the top plate 3 to the frame body 1, as shown in FIG. 4, with the fixed belt 33 inserted through the insertion portion between the plate member 30 and the inserted portion 32, the fixed belt 33 is wound around the inserted portion 32 and the middle support portion 13. Then, the other end of the fixed belt 33 is wound around the belt locking member 34, and the first surface fastener 35a and the second surface fastener 35b are engaged. Thereby, the displacement of the top plate 3 and the middle support portion 13 in the direction of separating from each other is restricted.

[0037] As shown in FIG. 2, when the surface fastener 35 is separated on the fixed belt 33, the top plate 3 can be removed from the frame body 1. That is, the top plate 3 is configured to be detachable from the frame body 1.

[0038] As shown in FIGS. 5 to 7, in the scaffold base 10 according to the present embodiment, the frame body 1 is configured such that a plurality of divided top plates 8 smaller than the top plate 3 can be assembled in a state where the top plate 3 is removed. In the present embodiment, two types of divided top plates 8 are adopted: a long top plate 8L having a large length dimension and a short top plate 8S having a small length dimension. The scaffold base 10 according to the present embodiment is configured to assemble a total of six divided top plates 8, two in the left - right direction and three in the front - rear direction (two long top plates 8L and one short top plate 8S).

[0039] When the divided top plate 8 is assembled to the frame body 1, the longitudinal end portions are supported by the end support portion 11 or the middle support portion 13. Specifically, as shown in FIG. 7, the end portion of the divided top plate 8 near the end support portion 11 is placed on the support piece 11a. Also, the end portion of the divided top plate 8 near the middle support portion 13 is placed on the upper surface of the middle support portion 13. At this time, the positioning portion 13a formed on the middle support portion 13 functions as a restricting portion for restricting the horizontal displacement of the divided top plate 8.

[0040] As shown in Fig. 6, a groove portion 8a for attaching other members is formed on the lower surface of the divided top plate 8. Specifically, by inserting a nut member (not shown) into the groove portion 8a, it becomes possible to attach other members via a bolt member that is screwed into this nut member. Also, it is possible to attach other members by directly locking a hook-shaped bracket or the like to the groove portion 8a.

[0041] As described above, in the scaffold base 10 according to this embodiment, when used for other purposes such as eating, the top plate 3 can be removed and the divided top plate 8 can be assembled to the frame body 1 for use. On the other hand, when the divided top plate 8 is not used, a plurality of divided top plates 8 can be stacked and stored, so that it can be easily carried.

[0042] In this way, the scaffold base 10 according to this embodiment is configured to be exchangeable with a plurality of divided top plates 8 by removing the top plate 3, making it possible to compact the divided top plates 8 when not in use and facilitating the carrying of the scaffold base 10.

[0043] Also, in the scaffold base 10 according to this embodiment, when the top plate 3 is assembled to the frame body 1, the middle support portion 13 is inserted into the notch portion 31. Thereby, the top plate 3 can be easily positioned with respect to the frame body 1, and the top plate 3 can be prevented from shifting from the frame body 1.

[0044] Also, in the scaffold base 10 according to this embodiment, a fixing belt 33 is provided as a regulating member that regulates the displacement of the top plate 3 and the middle support portion 13 in a direction in which they are separated from each other. Thereby, it is possible to prevent the top plate 3 from lifting off or coming off the frame body 1. Note that, as a regulating member for regulating the displacement between the top plate 3 and the middle support portion 13, other configurations such as a buckle, a clip, screwing, a string member, a magnet, a latch member, a surface tape, and a seal member can be adopted in addition to the fixing belt 33. Also, it is possible to provide the regulating member on the middle support portion 13.

[0045] Further, in the scaffold base 10 according to the present embodiment, an insertion portion for inserting the fixing belt 33 is formed between the lower surface of the plate member 30 on the top plate 3 and the inserted portion 32. Thereby, it becomes possible to provide the fixing belt 33, which is a regulating member, on the top plate 3 with a simple configuration.

[0046] Further, in the scaffold base 10 according to the present embodiment, the positioning portion 13a formed in the middle support portion 13 functions as a regulating portion that regulates the horizontal displacement of the split top plate 8. Thereby, the posture of the split top plate 8 when assembled to the frame body 1 can be stabilized. Note that it is also possible to adopt a configuration in which a regulating portion is provided on the end support portion 11.

[0047] Further, in the scaffold base 10 according to the present embodiment, groove portions 13b and 8a for attaching other members are formed in the middle support portion 13 and the split top plate 8. Thereby, it becomes possible to attach other members such as lighting fixtures, cooking utensils, trays, rope materials such as guide lines, and optional holders such as hooks to the scaffold base 10 with a simple configuration.

[0048] [Holding member 40] Next, with reference to FIGS. 8 to 13, the holding member 40 that is detachable from the frame body 1 of the scaffold base 10 will be described. In FIGS. 8, 12, and 13, the scaffold base 10 to which the holding member 40 is assembled is provided with a split top plate 8 with respect to the frame body 1, but the holding member 40 can also be assembled to the scaffold base 10 provided with the top plate 3.

[0049] The scaffold base 10 to which the holding member 40 is assembled has the top plate 3 or the split top plate 8 detachable from the frame body 1 as in the present embodiment. Therefore, it becomes possible to easily perform the attaching and detaching operation of the holding member 40 in a state where the top plate 3 or the split top plate 8 is removed from the frame body 1.

[0050] Note that it is also possible to adopt a configuration in which the holding member 40 is assembled to the scaffold base 10 in which the top plate 3 (split top plate 8) is fixed. Further, the holding member 40 is not limited to the scaffold base 10 provided with the ladder bodies 2 and 2, and can be assembled to any pedestal member provided with legs.

[0051] As shown in FIGS. 8, 12, and 13, the holding member 40 is used in a state of being assembled to the scaffold base 10. The holding member 40 is a single unit and is used when a single support member such as the first option member 50 (rod body 51) holds a single option member, as shown in the first scaffold base unit U1 in FIG. 12. Further, the holding members 40 are used in pairs and are used when two support members such as the second option member 60 and the third option member (rod bodies 61 and 71) hold two option members, as shown in the second scaffold base unit U2 in FIG. 13.

[0052] As shown in FIG. 9, the holding member 40 includes a pair of support members 41, 41, two shafts 42, 42, a compression spring 43 as a biasing member, a fixing screw 45, and the like. The support member 41 is a resin member in which a fixing portion 41a penetrating in the vertical direction is formed. By tightening the fixing screw 45 screwed into the inside of the fixing portion 41a with the rod body of the option member inserted into the fixing portion 41a, the rod body of the option member is fixed to the support member 41.

[0053] As shown in FIG. 10, the fixing portion 41a is formed as two inclined surfaces whose side surfaces on the side opposite to the fixing screw 45 are symmetric in a plan view with respect to the axis of the fixing screw 45. Thereby, when the rod body has a cylindrical shape, when the fixing screw 45 is tightened, the rod body can be stably supported at three points by the fixing screw 45 and the two inclined surfaces. Further, since the side surface of the rod body is in line contact with the two inclined surfaces, the rod body can be stably supported at the fixing portion 41a, and rattling of the rod body can be suppressed.

[0054] As shown in FIG. 9, engaging portions 44 are formed on the upper surfaces of the support members 41 toward both ends of the holding member 40. In a state where the holding member 40 is assembled to the frame body 1, the engaging portion 44 engages with the lower side 12a of the long frame 12 provided on the long side of the frame body 1. In other words, the holding member 40 is assembled to the frame body 1 by the engaging portions 44 of the respective support members 41, 41 engaging with the lower side 12a of the long frame 12 facing each other in the frame body 1.

[0055] Also, as shown in FIG. 10, engaging protrusions 41b·41b are formed on one side of the lower surface of each support member 41, and engaging grooves 41c·41c are formed on the other side. Then, as shown in FIG. 11, the engaging protrusions 41b·41b on the holding member 40 are inserted into the engaging grooves 41c·41c formed on the support member 41 of the other holding member 40, and the engaging protrusions 41b·41b formed on the support member 41 of the other holding member 40 are inserted into the engaging grooves 41c·41c on the holding member 40. Thereby, the holding member 40 can be combined with the other holding member 40.

[0056] As described above, the holding member 40 can be combined in pairs with the other holding member 40. Thereby, a pair of holding members 40·40 can be integrally assembled to be easily carried.

[0057] In the holding member 40, a pair of support members 41·41 are connected by two shafts 42·42. The support members 41·41 in the holding member 40 are formed in the same shape as each other and are arranged in a posture facing each other. Also, the shafts 42·42 are formed in the same shape as each other and are arranged in opposite directions. Hereinafter, the assembly configuration of one support member 41, the shafts 42·42 will be described.

[0058] As shown in FIG. 10, a locked portion 42c is formed at one end of the shaft 42. Also, a locking portion 41d, which is an elastic piece, protrudes toward the shaft 42 near the hole into which one end side of the shaft 42 is inserted in the support member 41. When one end side of the shaft 42 is inserted into the support member 41, the shaft 42 is fixed to the support member 41 without rattling because the locked portion 42c is locked to the locking portion 41d. That is, since the shape of the holding member 40 can be stabilized, it is possible to suppress rattling when the holding member 40 is assembled to the scaffold base 10.

[0059] Also, as shown in FIG. 10, a regulating portion 42a and a retaining portion 42b are provided at the other end of the shaft 42. A compression spring 43 is inserted between the regulating portion 42a and the support member 41. When the compression spring 43 attempts to extend with the other end of the shaft 42 inserted through the support member 41, the compression spring 43 biases the pair of support members 41, 41 away from each other.

[0060] As described above, in the holding member 40 according to the present embodiment, one of the support members 41 (the right side in FIG. 9) has one end of one of the shafts 42 (the front side in FIG. 9) fixed thereto, and the other end of the other shaft 42 (the back side in FIG. 9) slidably inserted therein. Also, the other support member 41 (the left side in FIG. 9) has one end of the other shaft 42 fixed thereto, and the other end of one shaft 42 slidably inserted therein. Thus, in the holding member 40, the support members 41, 41, the shafts 42, 42, the compression spring 43, etc. are assembled without using other fastening parts, adhesives, etc.

[0061] Also, in the holding member 40 according to the present embodiment, a compression spring 43 is provided on one of the shafts 42. The compression spring 43 biases one of the shafts 42 in a direction in which the shaft 42 comes out of the other support member 41.

[0062] When assembling the holding member 40 to the scaffold base 10, as shown in FIG. 9, the pair of support members 41, 41 are inserted inside the frame body 1 in a state where they are close to each other. Then, the pair of support members 41, 41 are separated by the biasing force of the compression spring 43. Further, each of the support members 41, 41 is pressed against the opposing long frames 12 in the frame body 1. At this time, the engaging portion 44 of the support member 41 engages with the lower side 12a of the long frame 12. Thereby, the holding member 40 is assembled to the frame body 1.

[0063] As described above, the holding member 40 according to the present embodiment can be attached to and detached from the scaffold base 10 simply by moving the support members 41, 41 closer to and away from each other. That is, the holding member 40 does not require other fixing members or the like and can be attached to and detached from the scaffold base 10 with a simple configuration.

[0064] Further, the holding member 40 according to the present embodiment is assembled to the frame body 1 by engaging the engaging portions 44 of the respective support members 41, 41 with the lower side 12a of the opposing long frame 12 in the frame body 1. Thereby, when a force is applied to the holding member 40, it is possible to prevent the holding member 40 from coming off the scaffold base 10. That is, it is possible to enhance the stability of the holding member 40 during assembly.

[0065] Further, the holding member 40 according to the present embodiment is configured such that a pair of support members 41, 41 are connected by two shafts 42, 42, one of the shafts 42 is fixed to the support member 41, and the other of the shafts 42 is slidably inserted into the support member 41. Thereby, since the support members 41 can approach and separate in an opposing posture without relative rotation, the operability of the holding member 40 can be improved.

[0066] Further, the holding member 40 according to the present embodiment is configured such that a compression spring 43, which is a biasing member, biases one shaft 42 in a direction in which the one shaft 42 comes out of the other support member 41. Thereby, since a force can always be continuously applied in a direction in which the support members 41, 41 separate, it is possible to further enhance the stability of the holding member 40 during assembly.

[0067] Next, with reference to FIG. 12, a first scaffold base unit U1 in which the holding member 40 is assembled to the scaffold base 10 and used will be described. The first scaffold base unit U1 is one in which one holding member 40 is assembled to the scaffold base 10 and used.

[0068] The first scaffold base unit U1 has a first option member 50 assembled to the scaffold base 10 via a holding member 40. The first option member 50 includes a rod body 51 that is a support column, a hook member 52 extending from the rod body 51, and a lighting fixture 53 locked to the hook member 52.

[0069] In the first scaffold base unit U1, the rod body 51 is fixed to the fixing portion 41a of the holding member 40, so that the first option member 50 is fixed to the scaffold base 10. That is, the first scaffold base unit U1 can assemble the first option member 50 having a single support column to the scaffold base 10 by using one holding member 40.

[0070] Next, with reference to FIG. 13, a second scaffold base unit U2 in which the holding member 40 is assembled to the scaffold base 10 and used will be described. The second scaffold base unit U2 uses two holding members 40·40 assembled to the scaffold base 10.

[0071] In the second scaffold base unit U2, a second option member 60 and a third option member 70 are assembled to the scaffold base 10 via holding members 40·40. The second option member 60 includes two rod bodies 61·61 that are support columns, a connecting rod 62 connecting the upper ends of the rod bodies 61·61, and cooking utensils 63·63 locked to the connecting rod 62. Further, the third option member 70 includes two rod bodies 71·71 that are support columns, and an extended top plate 72 fixed to the upper surface of the rod bodies 71·71.

[0072] In the second scaffold base unit U2, the rod bodies 61·71 are fixed to the fixing portions 41a of the respective holding members 40, so that the second and third option members 60·70 are fixed to the scaffold base 10. That is, the second scaffold base unit U2 can assemble the second and third option members 60·70 having two support columns to the scaffold base 10 by using a pair of two holding members 40·40.

[0073] [Scaffold base 10A (modified example)] Next, with reference to FIGS. 14 to 17, the scaffold base 10A according to a modified example of the present invention will be described. In the scaffold base 10A described in this modified example, only the shape and configuration of the top plate 3 are different from those of the scaffold base 10 according to the above embodiment, and the other configurations are common. Therefore, hereinafter, the description will focus on the differences from the scaffold base 10, and the same reference numerals will be given to the common configurations and the detailed description thereof will be omitted.

[0074] As shown in FIG. 14, the scaffold base 10A according to this modified example includes a frame body 1 formed in a rectangular shape in plan view, a pair of ladder bodies 2·2 rotatably provided at both ends in the longitudinal direction (front-rear direction of the scaffold base 10A) of the frame body 1, and a plate-shaped top plate 3A detachably attached to the frame body 1. In the scaffold base 10A, the top plate 3A is formed in a rectangular shape along the frame body 1.

[0075] In the scaffold base 10A according to this modified example, the top plate 3A is configured by combining a plate member 130 whose front, rear, left, and right ends are bent downward, support plates 131·131 fixed to both ends in the longitudinal direction (front-rear direction) on the lower surface of the plate member 130, support frames 132·132 which are a pair of rod-shaped members supported by the respective support plates 131·131, plate-shaped locking pieces 133·133 provided on the respective support plates 131·131, and the like.

[0076] In the scaffold base 10A according to this modified example, both ends in the longitudinal direction of the top plate 3A are supported by end support portions 11·11 in the frame body 1. Specifically, as shown in FIG. 15, the end in the longitudinal direction of the top plate 3 is supported by being placed on a support piece 11a formed in the end support portion 11.

[0077] The support frames 132 and 132 provided at both longitudinal ends of the top plate 3A are configured to be retractable and extendable toward the outside in the longitudinal direction of the top plate 3A (the outside in the front-rear direction of the scaffold base 10A), as shown in FIGS. 16(a) and 16(b). The support frame 132 is formed in a U-shape in plan view, and the end portion on the central side of the top plate 3A is bent downward to form a regulating projection 132a. As shown in FIG. 16(b), when the support frame 132 is extended, the regulating projection 132a abuts against the support plate 131, thereby regulating the support frame 132 from coming out of the top plate 3A.

[0078] When the pair of support frames 132 and 132 are extended outward on the top plate 3A, as shown in FIG. 17, the support frames 132 and 132 can be placed on any of the opposing rungs 4 and 4 of the pair of ladder bodies 2 and 2. Thereby, in the scaffold base 10A according to this modified example, when the top plate 3A is removed from the frame body 1 and a plurality of small divided top plates 8 are assembled, the top plate 3A can be used as a storage table. That is, in the scaffold base 10A shown in FIG. 17, it is possible to place cooking utensils and food ingredients on the top plate 3A for use.

[0079] In FIG. 17, the top plate 3A is described as being placed on the lowermost rung 4 and 4, but the top plate 3A may be placed on the middle rung 4 and 4. In this case, by adjusting the extension amount of the support frames 132 and 132 from the plate member 130 to an appropriate length, the support frames 132 and 132 can be configured not to protrude from the ladder bodies 2 and 2 more than necessary.

[0080] In the scaffold base 10A according to this modified example, locking pieces 133 and 133 that can be locked to the frame body 1 by rotating and displacing themselves are provided at both longitudinal ends of the top plate 3A. Specifically, as shown in FIG. 15, the locking piece 133 is rotatable between a locking posture in which it locks under the support piece 11a of the end support portion 11 constituting the frame body 1 and a non-locking posture in which it does not lock to the support piece 11a. The end of the locking piece 133 is bent to form an operation portion 133a for the user to operate.

[0081] In the scaffold base 10A according to this modification example, by locking the top plate 3A to the frame body 1 (support piece 11a) with the locking pieces 133 and 133, it is possible to prevent the top plate 3A from easily detaching from the frame body 1. That is, in the state where the locking pieces 133 and 133 are in the locked position, even when a force is applied to the top plate 3A from below, the top plate 3A will not come off the frame body 1. For this reason, it becomes possible to stably hold the top plate 3A with the frame body 1.

[0082] When removing the top plate 3A from the frame body 1, the user rotates and displaces the locking pieces 133 and 133 to the unlocked position and then lifts the top plate 3A. This enables the top plate 3A to be detached from the frame body 1 with a simple operation.

[0083] In the scaffold base 10A according to this modification example, the locking piece 133 is fixed to the support plate 131 of the top plate 3A via the fixing screw 134. And as shown in FIG. 15, the locking piece 133 is configured such that the rotation direction when rotating from the unlocked position to the locked position is clockwise when viewed from the bottom. Also, the rotation direction of the fixing screw 134 when fixing the locking piece 133 with the fixing screw 134 is configured to be clockwise when viewed from the bottom.

[0084] In this way, in the scaffold base 10A according to this modification example, the rotation direction of the fixing screw 134 when fixing the locking piece 133 with the fixing screw 134 and the rotation direction when rotating the locking piece 133 from the unlocked position to the locked position are configured to be the same. This enables the operations of the locking piece 133 and the fixing screw 134 by the user to be made common when fixing the locking piece 133 in the locked position, allowing for easy operation.

[0085] Also, when operating the fixing screw 134 to fix the posture of the locking piece 133, it is configured such that a force is applied in the direction in which the locking piece 133 is displaced to the locked position. In other words, it is configured such that the locking piece 133 does not displace in the displacement direction in which it becomes the unlocked position due to the operation of the fixing screw 134.

Explanation of Reference Numerals

[0086] 1 Frame body 2 Ladder body (leg body) 3 Ceiling 3A Ceiling (modified example) 4 Rung 5 Support column 5a Telescopic leg 6 Hinge 6a Stop mechanism 8 Split ceiling 8S Short ceiling 8L Long ceiling 8a Groove part 10 Scaffold base (base member) 10A Scaffold base (base member · modified example) 11 End support part 11a Support piece 12 Long frame 12a Lower side piece 13 Middle support part 13a Positioning part 13b Groove part 30 Plate member 31 Notch part 31a Concave part 32 Insertion part 33 Fixed belt (restricting member) 34 Belt locking member 35 Surface fastener 35a First surface fastener 35b Second surface fastener 40 Holding member 41 Support member 41a Fixing part 41b Engaging protrusion 41c Engaging groove 41d Locking part 42 Shaft 42a Restricting part 42b Anti - detachment part 42c Locked part 43 Compression spring (biasing member) 44 Engaging part 45 Fixing screw 50 First option member 51 Rod body 52 Hook member 53 Lighting fixture 60 Second option member 61 Rod body 62 Connecting rod 63 Cooking utensil 70 Third option member 71 Rod body 72 Expanded ceiling 130 Plate member 131 Support plate 132 Support frame 132a Restricting protrusion 133 Locking piece 133a Operating part 134 Fixing screw U1 First scaffold base unit U2 Second scaffold base unit

Claims

1. A scaffolding platform comprising a frame body formed in a rectangular shape in a plan view, a pair of ladder bodies rotatably provided at both ends of the frame body in the longitudinal direction, and a top plate that is detachable from the frame body, The frame body includes a pair of end support portions provided at both ends of the frame body in the longitudinal direction to support both ends of the tabletop, and at least one middle support portion provided in the middle portion of the frame body in the longitudinal direction to support the middle portion of the tabletop, The frame is configured so that a plurality of divided top plates smaller than the top plate can be assembled to the frame when the top plate is removed, A scaffolding platform in which the ends of the divided top plate are supported by the end support portions or the middle support portions when assembled to the frame body.

2. At least one notch is formed on the underside of the top plate, The scaffolding platform according to claim 1 , wherein the central support portion is inserted into the cutout portion when the top plate is assembled to the frame body.

3. The scaffolding platform according to claim 1 , further comprising a restricting member for restricting displacement of the top plate and the central support portion in a direction away from each other.

4. The scaffolding platform according to claim 3 , wherein an insertion portion for inserting the regulating member is formed on the underside of the top plate.

5. The scaffolding platform according to claim 1 , wherein at least one of the end support portion and the central support portion is formed with a positioning portion that restricts horizontal displacement of the divided top plate.

6. The scaffolding platform according to claim 1 , wherein the central support portion and / or the divided top plate are formed with a groove portion for attaching other components.

7. The top plate is formed in a rectangular shape along the frame body, A pair of support frames are provided at both ends of the tabletop in the longitudinal direction, and are movable outward in the longitudinal direction of the tabletop. The scaffolding platform as described in claim 1, wherein when the pair of support frames are advanced on the top plate, the pair of support frames can be placed on either of the opposing rungs of the pair of ladder bodies.

8. The top plate is formed in a rectangular shape along the frame body, The scaffolding platform according to claim 1 , wherein each of the longitudinal ends of the top plate is provided with a locking piece that can be locked to the frame body.

9. The scaffolding platform according to claim 8 , wherein the locking piece is rotatable between an locking position in which it locks with the frame body and an unlocking position in which it does not lock with the frame body.

10. The locking piece is fixed to the top plate via a fixing screw, The scaffolding platform of claim 9, wherein the rotation direction of the fixing screw when fixing the locking piece with the fixing screw coincides with the rotation direction when rotating the locking piece from the non-locking position to the locking position.

Images