Panel erection aid, combination of multiple panel erection aids, and panel erection method

Abstract

This invention provides a panel erection aid that can streamline the panel erection process, a combination of multiple panel erection aids, and a panel erection method. [Solution] The panel erection assist device comprises a mounting part that is attached to a panel having a first main surface, a second main surface, a bottom surface, and a top surface; a contact surface that can contact the first main surface of the panel; and a first roller that assists in changing the orientation of the panel from a prone position to an upright position and is rotatable around a first axis.

Description

Technical Field

[0006] , ,

[0007] ,

[0001] The present invention relates to a panel erection assist device, a combination of a plurality of panel erection assist devices, and a panel erection method.

Background Art

[0002] A device for transporting an outer wall panel in a suspended state is known.

[0003] As a related technique, Patent Document 1 discloses an outer wall panel suspension device. The outer wall panel suspension device described in Patent Document 1 relates to an outer wall panel suspension device for erecting a horizontally transported outer wall panel for a prefabricated house and suspending it on a ceiling transport cart.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] An object of the present invention is to provide a panel erection assist device, a combination of a plurality of panel erection assist devices, and a panel erection method capable of improving the efficiency of panel erection work.

Means for Solving the Problems

[0006] The present invention relates to a panel erection assist device, a combination of a plurality of panel erection assist devices, and a panel erection method shown below.

[0007] (1) An attachment portion attached to a panel having a first main surface, a second main surface, a bottom surface, and a top surface, A contact surface capable of contacting the first main surface of the panel, A first roller that is rotatable around a first axis assists in changing the orientation of the panel from a prone position to an upright position. Equipped with Panel mounting support tool. (2) The mounting portion has a hook portion for hooking onto the panel. The panel erection support tool described in (1) above. (3) The mounting portion has an adsorption portion that maintains contact between the panel and the contact surface by magnetic force or vacuum attraction force. The panel erection support tool described in (2) above. (4) The mounting portion is a quick mounting portion that can be attached to the panel by only two actions: hooking with the hook portion and adsorption with the suction portion. The panel erection support tool described in (3) above. (5) When the surface passing through the first axis and parallel to the contact surface is defined as the first surface, and the point of the hooking portion furthest from the first surface is defined as the furthest point, the radius of the first roller is greater than the distance between the first surface and the furthest point. A panel erection aid as described in any one of (2) to (4) above. (6) The hook portion is capable of engaging with the recess formed in the bottom surface of the panel. A panel erection aid as described in any one of (2) through (5) above. (7) The first roller is configured to be rotatable only in the first rotational direction around the first axis. A panel erection aid as described in any one of the above (1) to (6). (8) First ratchet gear, The first ratchet pawl, The second ratchet gear, Second ratchet pawl and It further comprises, The engagement of the first ratchet gear and the first ratchet pawl prevents the first roller from rotating in a second rotational direction opposite to the first rotational direction. The engagement between the second ratchet gear and the second ratchet pawl prevents the first roller from rotating in the second rotational direction. The panel erection support tool described in (7) above. (9) The device further comprises an over-rotation prevention member that prevents the first roller from rotating about the first axis beyond a predetermined rotation angle in the first rotational direction. Panel erection aid as described in (7) or (8) above. (10) A base supporting the first roller, A first replacement part having the aforementioned contact surface and being detachable from the base, It is equipped with, The first replacement part is replaceable with a second replacement part having a second contact surface that can contact the main surface of another panel that is thinner than the first replacement part. A panel erection aid as described in any one of the above (1) to (9). (11) The lower portion having the first roller, The upper portion where the contact surface is located and It has, The position of the contact surface can be adjusted relative to the lower portion in a direction substantially perpendicular to the contact surface. A panel erection aid as described in any one of the above (1) to (9). (12) The rocking body having the contact surface, A support that pivotably supports the aforementioned swinging body, A rocking operation unit that rocks the rocking body relative to the support, It further comprises A panel erection aid as described in any one of the above (1) through (11). (13) Further equipped with a handle that can be grasped by the worker, The oscillating body is pivotable relative to the handle, The rocking control unit is positioned so that the operator can simultaneously grip the handle and the rocking control unit with one hand. The panel erection aid described in (12) above. (14) The panel lifting aid according to any one of (1) to (13) above, a second panel lifting aid, and the second panel lifting aid includes a second attachment part attached to the panel, a third contact surface capable of contacting the first main surface of the panel, a second roller that assists in changing the posture of the panel from the prone posture to the standing posture and is rotatable about a second axis and is provided with a combination of a plurality of panel lifting aids. (15) A step of preparing a panel laminate including a second panel and a first panel stacked on the second panel; A step of attaching, to the first panel having a first main surface, a second main surface, a bottom surface, and a top surface, a panel lifting aid having a first roller rotatable about a first axis and a second panel lifting aid having a second roller rotatable about a second axis; A step of attaching a fixture of a lifting device to the top of the first panel; A step of lifting the first panel by lifting the fixture using the lifting device and is provided with The step of lifting the first panel includes rolling the first roller and the second roller along the main surface of the second panel so that both the first roller of the panel lifting aid and the second roller of the second panel lifting aid move along the main surface of the second panel. A panel lifting method.

Effects of the Invention

[0008] According to the present invention, it is possible to provide a panel lifting aid capable of improving the efficiency of panel lifting work, a combination of a plurality of panel lifting aids, and a panel lifting method.

Brief Description of the Drawings

[0009] [Figure 1] Figure 1 is a schematic two-view diagram illustrating the process of how the panel setup method is executed. [Figure 2] Figure 2 is a schematic side view illustrating the panel raising assist device in the first embodiment attached to the panel. [Figure 3] Figure 3 is a schematic side view illustrating the movement of the first roller of the panel lifting aid on the rolling surface. [Figure 4] Figure 4 is a schematic two-view diagram illustrating an example of a panel. [Figure 5] Figure 5 is a schematic two-view drawing illustrating an example of a base structure. [Figure 6] Figure 6 is a schematic two-view drawing illustrating an example of the upper structure. [Figure 7] Figure 7 is a schematic side view illustrating a part of the auxiliary device installation process. [Figure 8] Figure 8 is a schematic side view illustrating a part of the auxiliary device installation process. [Figure 9] Figure 9 is a schematic side view illustrating the state immediately after the panel inauguration process has begun. [Figure 10] Figure 10 schematically shows how the first roller can rotate only in the first rotational direction. [Figure 11] Figure 11 is a schematic three-view drawing illustrating an example of a base structure. [Figure 12] Figure 12 is a schematic diagram illustrating an example of a mechanism for preventing excessive rotation of the first roller. [Figure 13] Figure 13 is a schematic side view illustrating the panel erection process. [Figure 14] Figure 14 schematically shows how the first replacement part and the second replacement part can be exchanged. [Figure 15] Figure 15 is a schematic side view illustrating a relatively thin panel with a panel erection support attached. [Figure 16]Figure 16 is a schematic side view illustrating how protective members are arranged on the magnetic surface. [Figure 17] Figure 17 is a schematic side view illustrating a combination of multiple panel-raising assist devices in the first embodiment. [Figure 18] Figure 18 is a schematic side view illustrating the panel raising aid in the second embodiment. [Figure 19] Figure 19 is a schematic side view illustrating how the oscillating body can swing relative to the support. [Figure 20] Figure 20 is a schematic side view illustrating a panel lifting aid in the first modified example of the second embodiment. [Figure 21] Figure 21 schematically shows how the position of the contact surface can be adjusted. [Figure 22] Figure 22 schematically shows how the relative position of the upper part to the lower part can be adjusted. [Figure 23] Figure 23 schematically shows how the relative position of the contact surface with respect to the lower portion can be adjusted in response to changes in the panel thickness. [Figure 24] Figure 24 is a schematic front view illustrating the panel raising aid in the second embodiment. [Figure 25] Figure 25 is a schematic side view illustrating a combination of multiple panel-raising assist devices in the second embodiment. [Figure 26] Figure 26 is a schematic two-view diagram illustrating the process of how the panel setup method is executed. [Figure 27] Figure 27 is a schematic two-view diagram illustrating an example of a panel laminate. [Figure 28] Figure 28 is a schematic front view illustrating the panel lifting process. [Figure 29] Figure 29 is a schematic side view illustrating a portion of the second auxiliary device installation process. [Figure 30]Figure 30 is a schematic side view illustrating the state after the second mounting process has been performed. [Figure 31] Figure 31 is a flowchart showing an example of a panel raising method in the third embodiment. [Modes for carrying out the invention]

[0010] The following describes in detail, with reference to the drawings, the panel erection aid 1, the combination of multiple panel erection aids 10, and the panel erection method in the embodiment. In this specification, components having the same or similar functions are denoted by the same or similar reference numerals. In some cases, repeated descriptions of components denoted by the same or similar reference numerals may be omitted.

[0011] (Definition of direction) In this specification, the direction from the lower part 3 (or base structure 30) of the panel erection support 1 to the upper part 5 (or upper structure 50) of the panel erection support 1 is defined as the "first direction DR1".

[0012] (First Embodiment) Referring to Figures 1 to 17, the panel erection aid 1A and the combination 10 of multiple panel erection aids in the first embodiment will be described. Figure 1 is a schematic two-view drawing illustrating the execution of the panel erection method. A schematic side view is shown on the left side of Figure 1, and a schematic front view is shown on the right side. Figure 2 is a schematic side view illustrating the state in which the panel erection aid 1A in the first embodiment is attached to the panel 9. Figure 3 is a schematic side view illustrating the state in which the first roller 32 of the panel erection aid 1A is rolling on the rolling surface. Figure 4 is a schematic two-view drawing illustrating an example of the panel 9. A schematic side view is shown on the left side of Figure 4, and a schematic front view is shown on the right side. Figure 5 is a schematic two-view drawing illustrating an example of the base structure 30. A schematic side view is shown on the top of Figure 5, and a schematic bottom view is shown on the bottom of Figure 5. Figure 6 is a schematic two-view drawing illustrating an example of the upper structure 50. Figure 6 shows a schematic front view at the top and a schematic side view at the bottom. Figure 7 is a schematic side view illustrating a part of the auxiliary equipment installation process. Figure 8 is a schematic side view illustrating a part of the auxiliary equipment installation process. Figure 9 is a schematic side view illustrating the state immediately after the panel erection process has started. Figure 10 is a schematic diagram illustrating the first roller 32 being able to rotate only in the first rotation direction R1. Figure 11 is a schematic three-view diagram illustrating an example of the base structure 30. Figure 11 shows a schematic right side view at the top, a schematic bottom view in the center, and a schematic left side view at the bottom. Figure 12 is a schematic diagram illustrating an example of a mechanism to prevent excessive rotation of the first roller 32. Figure 13 is a schematic side view illustrating the panel erection process in progress. Figure 14 is a schematic diagram showing how the first replacement part CP1 and the second replacement part CP2 can be replaced. Figure 15 is a schematic side view showing the panel lifting aid 1A attached to a relatively thin panel 9'. Figure 16 is a schematic side view showing how the protective member 7 is placed on the adsorption surface of the magnet 55m.Figure 17 is a schematic side view illustrating a combination 10 of multiple panel erection assist devices in the first embodiment.

[0013] As illustrated in Figure 1, panel 9 is raised using the panel raising assist device 1A. More specifically, panel 9 is changed from a prone position to an upright position using the panel raising assist device 1A.

[0014] As illustrated in Figure 1, panel 9 has a first main surface 9a, a second main surface 9b, a bottom surface 9c, and a top surface 9d. Panel 9 also has two side surfaces 9e. The area of ​​the first main surface 9a is significantly larger than the areas of the bottom surface 9c, the top surface 9d, and the side surfaces 9e. The first main surface 9a may be the front or back surface of panel 9. The second main surface 9b is the surface located opposite to the first main surface 9a. The second main surface 9b may be the back or front surface of panel 9.

[0015] As illustrated in Figure 2, the panel lifting aid 1A in the first embodiment comprises a mounting portion AT, a contact surface 52, and a first roller 32. The panel lifting aid 1A also has a lower portion 3 (or base structure 30) having the first roller 32 and an upper portion 5 (or upper structure 50) on which the contact surface 52 is located.

[0016] The mounting portion AT is attached to the panel 9 (more specifically, the bottom portion 91 of the panel 9). As illustrated in Figure 2, the mounting portion AT may include a first mounting portion 35 that is positioned in contact with a part of the bottom portion 91 of the panel 9 (for example, a recess 92 or projection 93 provided on the bottom surface 9c of the panel 9).

[0017] The contact surface 52 is a surface that can contact the first main surface 9a of the panel 9. Preferably, the contact surface 52 includes a plane 52f that makes surface contact with the first main surface 9a of the panel 9.

[0018] The first roller 32 is rotatable around the first axis AX1. As illustrated in Figures 2 and 3, the first roller 32 assists in changing the orientation of the panel 9 from a prone position to an upright position. More specifically, the first roller 32 assists in changing the orientation of the panel 9 from a prone position (see Figure 2) where the second principal surface 9b is located vertically below the first principal surface 9a, to an upright position (see Figure 1(c)) where the top surface 9d is raised upward. In the example shown in Figure 1(c), the upright position is one in which the first principal surface 9a is substantially perpendicular to the horizontal plane. Alternatively, the upright position may be one in which the first principal surface 9a is inclined with respect to both the horizontal and vertical planes.

[0019] The first roller 32 assists in changing the orientation of panel 9 by rolling on a rolling surface (for example, the main surface 9a-2 of the second panel 9-2). More specifically, as the first roller 32 rolls on the rolling surface, panel 9 tilts with the first roller 32 as a pivot point. In this way, the orientation of panel 9 is changed from a prone position to an upright position as the first roller 32 rolls.

[0020] In the first embodiment, the panel 9 can be efficiently raised by attaching the panel raising assist tool 1A to the panel 9 (more specifically, the bottom portion 91 of the panel 9) and then changing the orientation of the panel 9 using the first roller 32. In the first embodiment, the panel raising operation can be performed by one person. However, in the first embodiment, the panel raising operation may be performed by two or more people.

[0021] Next, with reference to Figures 1 to 17, optional additional configurations that can be adopted in the panel lifting aid 1A in the first embodiment and the combination 10 of multiple panel lifting aids (or the panel lifting aid 1B in the second embodiment described later and the combination 10 of multiple panel lifting aids) will be explained.

[0022] (Panel 9 size) Referring to Figure 4, an example of the size of panel 9 is described. The width W1 of panel 9 is, for example, 80 cm or more and 900 cm or less. The height H1 of panel 9 is, for example, 60 cm or more and 200 cm or less. The thickness TH1 of panel 9 is, for example, 4 cm or more and 8 cm or less. The thickness TH1 of panel 9 is, for example, 5 cm or 7.5 cm. The weight of panel 9 is, for example, 20 kg or more, 40 kg or more, 60 kg or more, 80 kg or more, or 100 kg or more.

[0023] Panel 9 is, for example, a building material panel. Panel 9 may also be an exterior wall panel of a building. Panel 9 may have a metal outer shell (for example, an outer shell that can be attracted to magnets). Panel 9 may also have thermal insulation material placed inside the outer shell.

[0024] (Base structure 30) In the example shown in Figure 3, the panel erection aid 1A comprises a base structure 30 having a first roller 32. As illustrated in Figure 5, the base structure 30 may also have the first roller 32 and a bracket 31 that rotatably supports the first roller 32 around a first axis AX1. The bracket 31 may consist of a single part or an assembly of multiple parts.

[0025] (Upper structure 50) In the example shown in Figure 3, the panel lifting aid 1A comprises an upper structure 50 having a contact surface 52. In the example shown in Figure 6, the upper structure 50 has an elongated shape with the first direction DR1 being the longitudinal direction. The upper structure 50 may have a handle 51 that can be grasped by an operator. In the example shown in Figure 6, the upper structure 50 may have a second base 53 (more specifically, a base plate 530) that supports at least one of the handle 51 and the suction part 55 described later. In the example shown in Figure 6, the second base 53 (more specifically, the base plate 530) supports both the handle 51 and the suction part 55 described later. The base plate 530 also has an elongated shape that extends in a direction along the first direction DR1.

[0026] (1st support surface 33) In the example shown in Figure 3, the panel erection aid 1A has a first support surface 33 that supports the bottom surface 9c of the panel 9. The first support surface 33 is positioned in contact with the bottom surface 9c of the panel 9 and supports at least a portion of the gravitational force acting on the panel 9. In the example shown in Figure 3, the first support surface 33 is substantially perpendicular to the first direction DR1.

[0027] In the example shown in Figure 3, the lower portion 3 of the panel erection aid 1A (more specifically, the base structure 30) has the first support surface 33 described above. The first support surface 33 may be formed by the upper surface of the bracket 31 that supports the first roller 32.

[0028] (Mounting part AT) In the example shown in Figure 7, the mounting portion AT has a hook portion 35c that hooks onto the panel 9. In the example shown in Figure 7, the hook portion 35c is engageable with a recess 92 provided on the bottom surface 9c of the panel 9.

[0029] In the example shown in Figure 3, the hook portion 35c includes a protruding piece 350c. The protruding piece 350c is capable of entering a recess 92 provided in the bottom surface 9c of the panel 9. Preferably, the protruding length of the protruding piece 350c is less than the depth of the recess 92. In the example shown in Figure 3, the protruding length L1 of the protruding piece 350c (more specifically, the distance between the tip of the protruding piece 350c and the first support surface 33 in the direction along the first direction DR1) is 16 mm or less.

[0030] In the example shown in Figure 7, the lower portion 3 of the panel erection aid 1A (more specifically, the base structure 30) has the aforementioned hook portion 35c. The hook portion 35c may be formed by bending a part of the bracket 31.

[0031] As illustrated in Figure 9, the surface passing through the first axis AX1 and parallel to the aforementioned contact surface 52 is defined as the first surface PL1. The point of the hook portion 35c that is furthest from the first surface PL1 is defined as the furthest point P1. In the example shown in Figure 9, the radius D1 of the first roller 32 is greater than the distance L2 between the first surface PL1 and the furthest point P1. In this case, when the first roller 32 rolls on the rolling surface (for example, the main surface 9a-2 of another panel), the hook portion 35c does not come into contact with the rolling surface. Therefore, the rolling surface (for example, the main surface 9a-2 of another panel) is not damaged by the hook portion 35c.

[0032] The difference DF between the radius D1 of the first roller 32 and the distance L2 described above is, for example, 5 mm or more, 10 mm or more, or 15 mm or more.

[0033] In the example shown in Figure 7, the mounting portion AT has a suction portion 55. The suction portion 55 maintains contact between the panel 9 and the contact surface 52 by magnetic force or vacuum attraction. More specifically, the suction portion 55 attracts the first main surface 9a of the panel 9 by magnetic force or vacuum attraction.

[0034] In the example shown in Figure 7, the adsorption unit 55 has at least one magnet 55m that is adsorbed to a ferromagnetic material that constitutes part of the panel 9. In the example shown in Figure 7, multiple magnets 55m are arranged along the first direction DR1.

[0035] Alternatively, as illustrated in Figure 8, the suction unit 55 may have at least one suction cup 55s that adhere to the panel 9 by vacuum suction. In the example shown in Figure 8, multiple suction cups 55s are arranged along the first direction DR1.

[0036] In the examples shown in Figures 7 and 8, the upper portion 5 (more specifically, the upper structure 50) of the panel erection aid 1A has the aforementioned suction portion 55.

[0037] In the examples shown in Figures 7 and 8, the mounting part AT is a quick-attachment part that can be attached to the panel 9 (more specifically, the bottom portion 91 of the panel 9) with only two actions: hooking with the hooking part 35c and adsorption with the suction part 55. More specifically, in the examples shown in Figures 7 and 8, the mounting part AT of the panel lifting aid 1A can be attached to the panel 9 (more specifically, the bottom portion 91 of the panel 9) with only two actions: hooking the hooking part 35c into the recess 92 provided on the bottom surface 9c of the panel 9, and bringing the suction part 55 closer to the first main surface 9a of the panel 9 (see arrow AR1 in Figures 7 and 8).

[0038] Since the panel erection support 1A does not need to be bolted to the panel 9, the panel erection support 1A can be quickly attached to the panel 9.

[0039] In this specification, the bottom portion 91 of panel 9 refers to the lower half of panel 9 on the bottom surface 9c side (see Figure 4). The top portion 96 of panel 9 refers to the upper half of panel 9 on the top surface 9d side. In the example shown in Figure 1, the panel erection support 1A is attached only to the bottom portion 91 of panel 9. In the example shown in Figure 1, the height dimension of the panel erection support 1A is significantly smaller than the height dimension of panel 9. In the example shown in Figure 9, the height dimension L3 of the panel erection support 1A (in other words, the length of the panel erection support 1A in the direction along the first direction DR1) is, for example, 50 cm or less, 40 cm or less, or 30 cm or less. As illustrated in Figure 1, the height dimension of the panel erection support 1A may be designed so that when the panel erection support 1A is attached to the bottom portion 91 of panel 9, the upper end of the panel erection support 1A does not reach the top portion 96 of panel 9.

[0040] In the examples shown in Figures 7 and 8, the panel lifting aid 1A includes a handle 51. The handle 51, for example, has a C-shape overall. The handle 51 may be attached to the second base 53. An opening OP may also be formed between the handle 51 and the second base 53 (more specifically, the base plate 530), into which the operator's four fingers can be inserted simultaneously. When the panel lifting aid 1A includes a handle 51, the operator can easily perform the two actions described above while holding the handle 51.

[0041] (First Roller 32) The surface of the first roller 32 is preferably made of soft rubber. The hardness of the rubber constituting the surface of the first roller 32 can be, for example, 30 degrees or more, 31 degrees or more, 32 degrees or more, 33 degrees or more, 34 degrees or more, 35 degrees or more, 36 degrees or more, 37 degrees or more, 38 degrees or more, 39 degrees or more, 40 degrees or more, 60 degrees or less, 59 degrees or less, 58 degrees or less, 57 degrees or less, 56 degrees or less, 55 degrees or less, 54 degrees or less, 53 degrees or less, 52 degrees or less, 51 degrees or less, 50 degrees or less, etc. The hardness of the rubber may be expressed using any numerical value between 30 degrees and 60 degrees, such as 30 degrees to 60 degrees. In this specification, the hardness of the rubber refers to the hardness measured in accordance with JIS K6253-3 (2012). In addition, in hardness measurement in accordance with JIS K6253-3 (2012), a "Durometer Type A" is used as the detector.

[0042] The surface of the first roller 32 is made of soft rubber, which prevents the rolling surface (for example, the main surface 9a-2 of another panel) from being damaged by the first roller 32 when it rolls over it (see Figure 3).

[0043] In the example shown in Figure 5, the width W2 of the first roller 32 (in other words, the width W2 of the first roller 32 in the direction along the first axis AX1, which is the axis of rotation of the first roller 32) is greater than the radius D1 of the first roller 32. The width W2 of the first roller 32 may also be greater than the diameter D2 of the first roller 32. When the first roller 32 is a wide roller, the contact area between the first roller 32 and the rolling surface (for example, the main surface 9a-2 of another panel shown in Figure 3) increases. Therefore, when the first roller 32 supporting a heavy panel rolls on the rolling surface (for example, the main surface 9a-2 of another panel), the rolling surface is less likely to be indented downwards. The diameter D2 of the first roller 32 is, for example, 3 cm or more, 4 cm or more, 5 cm or more, or 6 cm or more.

[0044] As illustrated in Figure 3, it is preferable that the first roller 32 is configured to be rotatable only in the first rotational direction R1 around the first axis AX1. More specifically, as illustrated in Figure 1(b), it is preferable that, when the panel 9 is raised, the first roller 32 is configured to be movable in the second direction DR2 and immovable in the third direction DR3 opposite to the second direction DR2. In the example shown in Figure 1(b), the second direction DR2 is the direction from the bottom surface 9c-2 of the second panel 9-2 that supports the first roller 32 toward the top surface 9d-2 of the second panel 9-2. Also, in the example shown in Figure 1(b), the second direction DR2 is the direction from the bottom surface 9c of the panel 9 to which the panel raising aid 1A is attached toward the top surface 9d of the panel 9, in a plan view. In the example shown in Figure 1(b), the third direction DR3 is the opposite direction to the second direction DR2, and is the direction from the top surface 9d-2 of the second panel 9-2 that supports the first roller 32 toward the bottom surface 9c-2 of the second panel 9-2.

[0045] Because the first roller 32 is unable to rotate in the direction opposite to the first rotation direction R1 (more specifically, because the first roller 32 is unable to move in the third direction DR3 in Figure 1(b)), the first roller 32 is prevented from derailing from the rolling surface (for example, the main surface 9a-2 of the second panel 9-2) in the third direction DR3.

[0046] As illustrated in Figure 10, the panel lifting aid 1A (more specifically, the base structure 30) may have a first ratchet gear 36a and a first ratchet pawl 37a. Additionally, the panel lifting aid 1A (more specifically, the base structure 30) may have a first biasing member 38a (more specifically, a first spring 380a) that biases the first ratchet pawl 37a toward the first ratchet gear 36a. In the example shown in Figure 10, the engagement of the first ratchet gear 36a and the first ratchet pawl 37a prevents the first roller 32 from rotating in a second rotational direction R2 opposite to the first rotational direction R1. On the other hand, the first ratchet gear 36a and the first ratchet pawl 37a allow the first roller 32 to rotate in the first rotational direction R1.

[0047] As illustrated in Figure 11, the panel lifting aid 1A (more specifically, the base structure 30) may have a second ratchet gear 36b and a second ratchet pawl 37b. Additionally, the panel lifting aid 1A (more specifically, the base structure 30) may have a second biasing member 38b (more specifically, a second spring 380b) that biases the second ratchet pawl 37b toward the second ratchet gear 36b. In the example shown in Figure 11, the engagement of the second ratchet gear 36b and the second ratchet pawl 37b prevents the first roller 32 from rotating in the second rotational direction R2, which is opposite to the first rotational direction R1. On the other hand, the second ratchet gear 36b and the second ratchet pawl 37b allow the first roller 32 to rotate in the first rotational direction R1.

[0048] In the example shown in Figure 11, the panel lifting aid 1A has two ratchet mechanisms. In this case, rotation of the first roller 32 in the second rotational direction R2 is more reliably prevented. For example, even if one ratchet mechanism malfunctions due to foreign matter getting caught, the other ratchet mechanism ensures safety during operation.

[0049] In the example shown in Figure 11, the first roller 32 is positioned between the two ratchet mechanisms. More specifically, the first roller 32 is positioned between the first ratchet gear 36a and the second ratchet gear 36b. In this case, a force that prevents rotation in the second rotational direction R2 acts on the first roller 32 in a balanced manner.

[0050] As illustrated in Figure 12, the panel erection aid 1A (more specifically, the base structure 30) may be equipped with an over-rotation prevention member 39. The over-rotation prevention member 39 prevents the first roller 32 from rotating beyond a predetermined rotation angle in the first rotation direction R1 around the first axis AX1. When the panel erection aid 1A is equipped with an over-rotation prevention member 39, the first roller 32 is prevented from derailing from the rolling surface (e.g., the main surface 9a-2 of the second panel 9-2) in the second direction DR2 (see Figure 13).

[0051] In the example shown in Figure 12, the over-rotation prevention member 39 includes a spiral member 390. In the example shown in Figure 13, one end of the spiral member 390 rotates together with the first roller 32 around the first axis AX1. The other end of the spiral member 390 is fixed to a part of the base structure 30 so that it cannot rotate around the first axis AX1.

[0052] Alternatively, the over-rotation prevention member 39 may prevent the over-rotation of the first roller 32 in the first rotation direction R1 by means of a string-like body, a rack and pinion, or some other mechanism.

[0053] (Replacement part CP) In the example shown in Figure 14, the panel erection aid 1A comprises a base B that supports the first roller 32, and a first replacement part CP1 having the aforementioned contact surface 52 and being detachable from the base B. In the example shown in Figure 14, the base B is part of the base structure 30 described above, and the first replacement part CP1 is part or all of the upper structure 50 described above.

[0054] In the example shown in Figure 14, the first replacement part CP1 (more specifically, the upper structure 50) is interchangeable with the second replacement part CP2 (more specifically, the second upper structure 50b). The second replacement part CP2 has a second contact surface 52b that can contact the first main surface 9a' of another panel 9' (see Figure 15) which is thinner than the panel 9 described above.

[0055] In the panel erection aid 1A, if the first replacement part CP1 described above can be replaced with the second replacement part CP2 described above, the operator only needs to select one of several replacement parts, including the first replacement part CP1 and the second replacement part CP2, according to the thickness of the panel. For example, the operator can attach the selected first replacement part CP1 to the base B described above and use it as the first form of the panel erection aid 1A. Alternatively, the operator can attach the selected second replacement part CP2 to the base B described above and use it as the second form of the panel erection aid 1A. For example, when erecting a panel with a thickness of 7.5 cm, the first form of the panel erection aid 1A (see Figure 3) may be used, and when erecting a panel with a thickness of 5 cm, the second form of the panel erection aid 1A (see Figure 15) may be used.

[0056] In the example shown in Figure 14, with the first replacement part CP1 attached to the base B, the distance between the first plane PT1 containing the contact surface 52 and the first axis AX1 is defined as the first distance LD1. Furthermore, with the second replacement part CP2 attached to the base B, the distance between the second plane PT2 containing the second contact surface 52b and the first axis AX1 is defined as the second distance LD2. In the example shown in Figure 14, the second distance LD2 is smaller than the first distance LD1.

[0057] In the example shown in Figure 14, the second replacement part CP2 includes a second suction portion 55b, a second handle 51b, and a second base plate 530b that supports the second suction portion 55b and the second handle 51b. The second base plate 530b includes a main plate portion 531b extending along a first direction DR1, and a second plate portion 532b connected to the main plate portion 531b via a bent portion 533b. In the example shown in Figure 14, the second plate portion 532b is positioned substantially perpendicular to the main plate portion 531b. The presence of the second plate portion 532b makes the above-mentioned second distance LD2 relatively smaller. In the example shown in Figure 14, the second plate portion 532b is positioned in contact with the first support surface 33 of the base structure 30.

[0058] (Mounting member 6) In the example shown in Figure 14, the panel erection aid 1A has a mounting member 6 for attaching the upper structure 50 to the base structure 30 (e.g., bracket 31). The mounting member 6 may include a threaded member 61 (e.g., bolt 610) that can be inserted into both a first hole 3h formed in the base structure 30 and a second hole 5h formed in the upper structure 50 (e.g., base plate 530). The mounting member 6 may also have an operating part 63 (e.g., operating knob 630) for rotating the threaded member 61 (e.g., bolt 610) around its axis.

[0059] In the example shown in Figure 14, the mounting member 6 functions as a member for attaching the first replacement part CP1 to the base structure 30 (or base B), and also functions as a member for attaching the second replacement part CP2 to the base structure 30 (or base B). In other words, a mounting member 6 is provided for each base structure 30. Alternatively, a mounting member 6 may be provided for each replacement part CP. More specifically, a mounting member for attaching the second replacement part CP2 to the base structure 30 may be provided separately from the mounting member 6 for attaching the first replacement part CP1 to the base structure 30.

[0060] (Protective member 7) As illustrated in Figure 16, the panel erection aid 1A may have a protective member 7 (e.g., protective tape 7t) positioned to cover the magnetic surface of the magnet 55m. In the example shown in Figure 16, the contact surface 52 that will come into contact with the panel 9 is the surface of the protective member 7 (e.g., protective tape 7t). In this case, it is easy to clean the contact surface 52. The protective tape 7t may include multiple layers of tape 70 that can be peeled off sequentially. In this case, by peeling off the surface layer of tape 70, the tape that will next become the contact surface 52 is exposed. Therefore, by peeling off the tape 70 to which iron powder or the like has adhered, a new, clean contact surface 52 can be exposed.

[0061] (Second panel erection support tool 1A-2) The combination 10 of multiple panel-raising assist devices in the first embodiment comprises the panel-raising assist device 1A described above and the second panel-raising assist device 1A-2. Since the panel-raising assist device 1A has already been described, a repeated explanation of the panel-raising assist device 1A will be omitted.

[0062] As illustrated in Figure 17, the second panel raising assist device 1A-2 comprises (1) a second mounting portion AT2 attached to the panel 9 (more specifically, the bottom portion 91 of the panel 9), (2) a third contact surface 52-3 that can contact the first main surface 9a of the panel 9, and (3) a second roller 32-2 that assists in changing the posture of the panel 9 from a prone position to an upright position and is rotatable around a second axis AX2.

[0063] In the example shown in Figure 1, the panel erection aid 1A is attached to the bottom portion of one side of the panel 9, and the second panel erection aid 1A-2 is attached to the bottom portion of the other side of the panel 9. By attaching at least two panel erection aids (1A, 1A-2) to the panel 9, the panel erection work can be performed more safely. Note that the number of panel erection aids attached to the panel 9 may be three or more.

[0064] As illustrated in Figure 17, the second panel lifting aid 1A-2 has a similar configuration to the panel lifting aid 1A. For example, the second panel lifting aid 1A-2 includes a hook portion 35c-2 for hooking onto the panel 9. The second panel lifting aid 1A-2 also includes a suction portion 55-2 for maintaining contact between the panel 9 and the third contact surface 52-3 by magnetic force or vacuum attraction. The suction portion 55-2 may include a magnet 55m-2 or a suction cup. The second panel lifting aid 1A-2 may also include a ratchet mechanism including a ratchet gear 36-2 and a ratchet pawl 37-2. This ratchet mechanism allows the second roller 32-2 to rotate around the second axis AX2 in a first rotational direction R1, and prohibits the second roller 32-2 from rotating around the second axis AX2 in a second rotational direction R2 opposite to the first rotational direction R1. Furthermore, the second panel lifting aid 1A-2 may have a base B-2 that supports the second roller 32-2, and a third replacement part CP3 having the aforementioned third contact surface 52-3 and being detachable from the base B-2. The third replacement part CP3 may be interchangeable with a fourth replacement part (more specifically, a fourth replacement part having a shape similar to the second replacement part CP2 shown in Figure 15) that has a fourth contact surface capable of contacting the first main surface of another panel 9' (see Figure 15) that is thinner than panel 9. The second panel lifting aid 1A-2 may also have a mounting member 6-2 for attaching the third replacement part CP3 to the base B-2 that supports the second roller 32-2. The third replacement part CP3 may also have a handle 51-2 that can be gripped by an operator.

[0065] The other components of the second panel erection aid 1A-2 are the same as the corresponding components of the panel erection aid 1A. Therefore, a repetitive explanation of the other components of the second panel erection aid 1A-2 is omitted.

[0066] (Second embodiment) Referring to Figures 18 to 26, the panel erection aid 1B in the second embodiment and the combination 10 of multiple panel erection aids will be described. Figure 18 is a schematic side view illustrating the panel erection aid 1B in the second embodiment. Figure 19 is a schematic side view illustrating how the oscillating body 56 can swing relative to the support 57. Figure 20 is a schematic side view illustrating the panel erection aid 1B in the first modified example of the second embodiment. Figure 21 is a schematic diagram illustrating how the position of the contact surface 52 can be adjusted. Figure 22 is a schematic diagram illustrating how the relative position of the upper part 5 with respect to the lower part 3 can be adjusted. Figure 23 is a schematic diagram illustrating how the relative position of the contact surface 52 with respect to the lower part 3 can be adjusted in response to a change in the thickness of the panel 9. Figure 24 is a schematic front view illustrating the panel erection aid 1B in the second embodiment. Figure 25 is a schematic side view illustrating the combination 10 of multiple panel erection aids in the second embodiment. Figure 26 is a schematic two-view diagram illustrating the process of raising the panel. The left side of Figure 26 shows a schematic side view, and the right side shows a schematic front view.

[0067] The panel lifting aid 1B and the combination of multiple panel lifting aids 10 in the second embodiment differ from the panel lifting aid 1A and the combination of multiple panel lifting aids 10 in the first embodiment in that the oscillating body 56 having a contact surface 52 is oscillating, and that it includes an oscillating operation unit 58 for oscillating the oscillating body 56. In other respects, the second embodiment is the same as the first embodiment.

[0068] In the second embodiment, the focus will be on the differences from the first embodiment, and repetitive explanations of matters already explained in the first embodiment will be omitted. Therefore, it goes without saying that even if not explicitly explained in the second embodiment, matters already explained in the first embodiment can be adopted in the second embodiment. Conversely, matters explained in the second embodiment can also be adopted in the first embodiment.

[0069] As illustrated in Figures 18 and 19, the panel raising assist device 1B in the second embodiment comprises: (1) a mounting portion AT that is attached to a panel 9 having a first main surface 9a, a second main surface 9b, a bottom surface 9c, and a top surface 9d (see Figure 26); (2) a contact surface 52 that can contact the first main surface 9a of the panel 9; and (3) a first roller 32 that assists in changing the orientation of the panel 9 from a prone position to an upright position and is rotatable around a first axis AX1.

[0070] Therefore, the panel lifting aid 1B in the second embodiment has the same effect as the panel lifting aid 1A in the first embodiment.

[0071] As illustrated in Figure 18, the panel lifting aid 1B in the second embodiment comprises a swinging body 56 having a contact surface 52, a support body 57 that swingably supports the swinging body 56, and a swinging operation unit 58 that swings the swinging body 56 relative to the support body 57.

[0072] In the second embodiment, the panel lifting assist tool 1B includes a swinging operation unit 58 that swings a swinging body 56 having a contact surface 52 relative to a support 57, so that the operator can easily perform the task of separating the contact surface 52 from the first main surface 9a of the panel 9 (see Figure 19(b)).

[0073] For example, after the panel 9 is lifted by the traction element 81 (see Figure 26), the operator operates the swinging mechanism 58. In this way, the contact surface 52 is separated from the first main surface 9a of the panel 9. After that, the operator can easily remove the entire panel lifting aid 1B from the panel 9.

[0074] After the panel lifting assist tool 1B is attached to the panel 9, it is assumed that the mounting position of the panel lifting assist tool 1B on the panel 9 needs to be changed. If the suction force of the suction part 55 on the panel 9 is strong, this change may be time-consuming. Also, if the panel lifting assist tool 1B is forcibly slid on the panel 9, scratches may be formed on the panel 9. In contrast, in the example shown in Figure 19, the operator can easily separate the contact surface 52 from the first main surface 9a of the panel 9 by operating the swing operation part 58 (see Figure 19(b)). After that, the operator can easily change the mounting position of the panel lifting assist tool 1B on the panel 9.

[0075] Next, with reference to Figures 18 to 26, we will describe optional additional configurations that can be adopted in the panel lifting aid 1B in the second embodiment and the combination 10 of multiple panel lifting aids (or the panel lifting aid 1A in the first embodiment and the combination 10 of multiple panel lifting aids described above).

[0076] (Oscillating body 56, and support body 57) In the example shown in Figure 18, the oscillating body 56 is oscillating around the oscillation axis AS relative to the support 57. In other words, the support 57 supports the oscillating body 56 so that it can oscillate around the oscillation axis AS. In the example shown in Figure 18, the oscillation operation unit 58 causes the oscillating body 56 to oscillate around the oscillation axis AS.

[0077] The support 57 may have a support block 571 and a support pin 573. In the example shown in Figure 18, the support block 571 supports the oscillating body 56 via the support pin 573. The oscillating body 56 is pivotable around the support pin 573, which extends along the pivot axis AS.

[0078] In the example shown in Figure 18, the upper portion 5 (more specifically, the upper structure 50) includes the oscillating body 56 and the support 57. Since the upper portion 5 and the upper structure 50 have already been described in the first embodiment, a repeated description of the upper portion 5 and the upper structure 50 will be omitted.

[0079] In the example shown in Figure 18, the panel erection aid 1B is equipped with a handle 51 that can be gripped by the operator. In the example shown in Figure 18, the handle 51 connects the lower portion 3 (more specifically, the base structure 30) and the support 57. In this case, since the handle 51 functions as a connecting member that connects the lower portion 3 and the support 57, there is no need to prepare a separate dedicated connecting member from the handle 51. Therefore, the number of parts is reduced, and the panel erection aid 1B is made lighter. In the example shown in Figure 18, the lower portion 3 (more specifically, the base structure 30) is connected to one end of the handle 51. Also in the example shown in Figure 18, the support 57 is connected to the other end of the handle 51. The handle 51, lower portion 3, and base structure 30 have already been described in the first embodiment, so a repeated explanation of the handle 51, lower portion 3, and base structure 30 will be omitted.

[0080] Alternatively, or additionally, the lower portion 3 and the support 57 may be connected via a connecting member other than the handle 51.

[0081] In the example shown in Figure 18, the oscillating body 56 includes an adsorption part 55 (more specifically, a magnet 55m). The adsorption part 55 maintains contact between the panel 9 and the contact surface 52 by magnetic force or vacuum attraction. Since the adsorption part 55 has already been described in the first embodiment, a repeated explanation of the adsorption part 55 will be omitted.

[0082] (Oscillating operation unit 58) In the example shown in Figure 18, the oscillating body 56 is oscillating relative to the handle 51. The oscillating control unit 58 is positioned so that the operator can simultaneously grip the handle 51 and the oscillating control unit 58 with one hand. In this case, the operator can grip the handle 51 and operate the oscillating control unit 58 with one hand.

[0083] An operator who holds both the handle 51 and the swinging operation unit 58 with one hand can move the panel lifting assist device 1B with one hand. Furthermore, an operator who holds both the handle 51 and the swinging operation unit 58 with one hand can hook the hook portion 35c of the panel lifting assist device 1B onto the panel 9.

[0084] Until the hands are released from both the handle 51 and the swinging operation unit 58, suction between the suction part 55 and the panel 9 is suppressed, allowing the operator to easily position the panel lifting aid 1B at the desired location on the panel 9. When the hands are released from both the handle 51 and the swinging operation unit 58, the swinging body 56, including the suction part 55, swings automatically due to the suction force. In this way, the panel lifting aid 1B is attached to the panel 9 by the suction force of the suction part 55.

[0085] In the example shown in Figure 19, the panel lifting aid 1B can be removed from the panel 9 with one hand. More specifically, firstly, the worker grasps both the handle 51 and the swinging operation part 58 with one hand. By grasping both the handle 51 and the swinging operation part 58, the swinging operation part 58 moves closer to the handle 51. As the swinging operation part 58 moves closer to the handle 51, the swinging operation part 58 and the swinging body 56 swing relative to the handle 51, and the contact surface 52 moves away from the first main surface 9a of the panel 9 (see Figure 19(b)). Secondly, while grasping both the handle 51 and the swinging operation part 58 with one hand, the worker moves the entire panel lifting aid 1B away from the panel 9. In this way, the panel lifting aid 1B is removed from the panel 9.

[0086] In the example shown in Figure 19, the panel lifting assist 1B can be removed from the panel 9 by only two actions: a first action of gripping both the handle 51 and the swinging operation part 58, and a second action of moving the panel lifting assist 1B away from the panel 9 while gripping both the handle 51 and the swinging operation part 58. Therefore, the work of removing the panel lifting assist 1B from the panel 9 can be easily performed. Furthermore, the first and second actions described above can be performed as a series of actions. Therefore, the work of removing the panel lifting assist 1B from the panel 9 can be performed quickly. Furthermore, the first and second actions described above can be performed with one hand. Therefore, the other hand is free. The first and second actions described above may be performed while the panel 9 is held with the other hand. Of course, the first and second actions described above may also be performed with both hands.

[0087] In the example shown in Figure 18, the rocking operation unit 58 has a first end 58a attached to the rocking body 56 and a second end 58b. In the example shown in Figure 18, the second end 58b is a free end. In the example shown in Figure 18, the second end 58b is located near the handle 51. The distance between the second end 58b and the handle 51 is, for example, 10 cm or less, 7 cm or less, 4 cm or less, or 2 cm or less. In the example shown in Figure 18, the second end 58b extends along a direction generally parallel to the first direction DR1. In the example shown in Figure 18, the second end 58b is positioned along the handle 51. In the example shown in Figure 18, the first end 58a is located closer to the first direction DR1 than the second end 58b. In the example shown in Figure 18, the rocking operation unit 58 has a substantially L-shape.

[0088] The shape and arrangement of the oscillating operation unit 58 are not limited to the example shown in Figure 19. As illustrated in Figure 20, the oscillating operation unit 58 may be made of a plate (more specifically, a plate having a bent portion 58c).

[0089] The configuration of the oscillating body 56, support body 57, and oscillating operation unit 58 can also be adopted in the panel raising assist device 1A in the first embodiment.

[0090] (Adjustment of the position of the contact surface 52) In the example shown in Figure 21, the panel lifting aid 1B comprises a lower portion 3 (more specifically, a base structure 30) having a first roller 32, and an upper portion 5 (more specifically, an upper structure 50) on which the contact surface 52 is located. In the example shown in Figure 21, the position of the contact surface 52 is adjustable relative to the lower portion 3 (more specifically, the base structure 30) in a direction substantially perpendicular to the contact surface 52. As illustrated in Figure 21, the direction perpendicular to both the first axis AX1 and the first direction DR1 is defined as the fourth direction DR4. In the example shown in Figure 21, the position of the contact surface 52 is adjustable relative to the lower portion 3 (more specifically, the base structure 30) in a direction parallel to the fourth direction DR4.

[0091] In the example shown in Figure 21, the worker can adjust the relative position of the contact surface 52 with respect to the lower portion 3 (more specifically, the base structure 30) to match the thickness of the panel.

[0092] If the position of the contact surface 52 can be adjusted relative to the lower portion 3 in a direction substantially perpendicular to the contact surface 52, the panel erection assist tool 1B can be adapted to multiple types of panel thicknesses without having to prepare multiple replacement parts (CP1, CP2) as illustrated in Figure 14. Therefore, the total number of parts and equipment to be brought to the site where the panel erection work is performed, the total weight of the parts and equipment, and the total volume of the parts and equipment can be reduced.

[0093] In the example shown in Figure 22, the position of the contact surface 52 can be adjusted relative to the lower portion 3 (more specifically, the base structure 30) in a multi-stage manner (for example, in two or three stages) in a direction substantially perpendicular to the contact surface 52.

[0094] In the example shown in Figure 23(a), when the position of the contact surface 52 is at a first relative position Q1 with respect to the lower portion 3 (more specifically, the base structure 30), the arrangement of the mounting portion AT (more specifically, the hook portion 35c) and the contact surface 52 is suitable for a panel 9 with a first thickness T1 (for example, a panel with a thickness of 7.5 cm).

[0095] In the example shown in Figure 23(b), when the contact surface 52 is at the second relative position Q2 with respect to the lower portion 3 (more specifically, the base structure 30), the arrangement of the mounting portion AT (more specifically, the hook portion 35c) and the contact surface 52 is suitable for a panel 9 with a second thickness T2 (for example, a panel with a thickness of 5 cm). Note that the second thickness T2 is smaller than the first thickness T1.

[0096] In the example shown in Figure 23(c), when the contact surface 52 is located at the third relative position Q3 with respect to the lower portion 3 (more specifically, the base structure 30), the arrangement of the mounting portion AT (more specifically, the hook portion 35c) and the contact surface 52 is suitable for a panel 9 with a third thickness T3 (for example, a panel with a thickness of 3.5 cm). Note that the third thickness T3 is smaller than the second thickness T2.

[0097] In the examples shown in Figures 22(a) to 22(c), a plurality of holes are formed in the lower portion 3 (more specifically, the base structure 30), including a first hole 301h and a second hole 302h. The plurality of holes formed in the lower portion 3 (more specifically, the base structure 30) may include a third hole 303h in addition to the first hole 301h and the second hole 302h.

[0098] In the example shown in Figure 23(a), when the lower portion 3 (more specifically, the base structure 30) and the upper portion 5 (more specifically, the upper structure 50) are connected via a pin 4 (more specifically, a bolt 4b) inserted into the first hole 301h, the arrangement of the mounting portion AT (more specifically, the hook portion 35c) and the contact surface 52 is suitable for a panel 9 with a first thickness T1 (for example, a panel with a thickness of 7.5 cm).

[0099] In the example shown in Figure 23(b), when the lower portion 3 (more specifically, the base structure 30) and the upper portion 5 (more specifically, the upper structure 50) are connected via a pin 4 (more specifically, a bolt 4b) inserted into the second hole 302h, the arrangement of the mounting portion AT (more specifically, the hook portion 35c) and the contact surface 52 is adapted to a panel 9 with a second thickness T2 (for example, a panel with a thickness of 5 cm).

[0100] In the example shown in Figure 23(c), when the lower portion 3 (more specifically, the base structure 30) and the upper portion 5 (more specifically, the upper structure 50) are connected via a pin 4 (more specifically, a bolt 4b) inserted into the third hole 303h, the arrangement of the mounting portion AT (more specifically, the hook portion 35c) and the contact surface 52 is adapted to a panel 9 with a third thickness T3 (for example, a panel with a thickness of 3.5 cm).

[0101] In the examples shown in Figures 21 to 23, the relative position of the upper portion 5 relative to the lower portion 3 can be adjusted in order to adjust the relative position of the contact surface 52 relative to the lower portion 3. In the examples shown in Figures 21 to 23, even if the relative position of the contact surface 52 relative to the lower portion 3 is changed in a direction substantially perpendicular to the contact surface 52, the relative position of the contact surface 52 relative to the handle 51 is maintained. By maintaining the relative position of the contact surface 52 relative to the handle 51, the change in the working sensation experienced by the worker due to adjustment of the relative position of the contact surface 52 is kept to a minimum.

[0102] Alternatively, the position of the contact surface 52 may be adjustable in the upper portion 5. For example, the relative position of the contact surface 52 with respect to the handle 51 may be adjustable in order to adjust the relative position of the contact surface 52 with respect to the lower portion 3.

[0103] In the example shown in Figure 24, the lower portion 3 (more specifically, the base structure 30) has a guide wall 305 that guides the movement of the upper portion 5 relative to the lower portion 3 in a fourth direction DR4 (in other words, a direction perpendicular to both the first axis AX1 and the first direction DR1). The guide wall 305 facilitates the change in the relative position of the upper portion 5 relative to the lower portion 3. More specifically, a pin 4 (more specifically, a bolt 4b) is removed from one hole in the lower portion 3 (e.g., the first hole 301h), the upper portion 5 is slid along the guide wall 305 relative to the lower portion 3, and then the pin 4 (more specifically, a bolt 4b) is inserted into another hole in the lower portion 3 (e.g., the second hole 302h). In this way, the relative position of the upper portion 5 relative to the lower portion 3 is changed.

[0104] An embodiment that allows adjustment of the relative position of the contact surface 52 with respect to the lower portion 3 can also be adopted in the panel raising assist tool 1A in the first embodiment.

[0105] (Second panel erection support tool 1B-2) The combination 10 of multiple panel-raising aids in the second embodiment comprises the panel-raising aid 1B described above and the second panel-raising aid 1B-2. Since the panel-raising aid 1B has already been described, a repeated explanation of the panel-raising aid 1B will be omitted.

[0106] As illustrated in Figure 25, the second panel raising assist device 1B-2 comprises (1) a second mounting portion AT2 attached to the panel 9 (more specifically, the bottom portion 91 of the panel 9), (2) a third contact surface 52-3 that can contact the first main surface 9a of the panel 9, and (3) a second roller 32-2 that assists in changing the orientation of the panel 9 from a prone position to an upright position and is rotatable around a second axis AX2.

[0107] Since the second mounting portion AT2, the third contact surface 52-3, and the second roller 32-2 have already been described in the first embodiment, a repeated explanation of these components will be omitted.

[0108] The second panel raising assist device 1B-2 may include a second oscillating body 56-2 having a third contact surface 52-3, a second support 57-2 that pivotably supports the second oscillating body 56-2, and a second oscillating operation part 58-2 that causes the second oscillating body 56-2 to oscillate relative to the second support 57-2.

[0109] The second oscillating body 56-2, the second support body 57-2, and the second oscillating operation unit 58-2 have the same configuration as the oscillating body 56, support body 57, and oscillating operation unit 58, respectively, so a repetitive explanation of their configurations will be omitted.

[0110] (Third embodiment) The panel erection method in the third embodiment will be described with reference to Figures 1 to 31. Figure 27 is a schematic two-view drawing illustrating an example of a panel laminate SB. A schematic side view is shown on the left side of Figure 27, and a schematic front view is shown on the right side. Figure 28 is a schematic front view illustrating the panel lifting process. Figure 29 is a schematic side view illustrating part of the second auxiliary device installation process. Figure 30 is a schematic side view illustrating the state after the second mounting device installation process has been completed. Figure 31 is a flowchart illustrating an example of the panel erection method in the third embodiment.

[0111] The panel erection method in the third embodiment is performed using a panel erection aid 1 and a plurality of panel erection aids, including a second panel erection aid 1-2. Panel erection aid 1 may be panel erection aid 1A in the first embodiment, panel erection aid 1B in the second embodiment, or any other panel erection aid. Similarly, the second panel erection aid 1-2 may be the second panel erection aid 1A-2 in the first embodiment, the second panel erection aid 1B-2 in the second embodiment, or any other second panel erection aid. Panel erection aid 1A, panel erection aid 1B, second panel erection aid 1A-2, and second panel erection aid 1B-2 have already been described in the first or second embodiment, so a repeated explanation of their configurations will be omitted.

[0112] As illustrated in Figure 27, in the first step ST1, a panel laminate SB is prepared, which includes a second panel 9-2 and a first panel 9-1 stacked on top of the second panel 9-2. The first step ST1 is a preparation step. The number of panels included in the panel laminate SB prepared in the preparation step may be two, three, or four or more. In the example shown in Figure 1 or Figure 26, the panel laminate SB has five or more panels stacked, including the first panel 9-1 and the second panel 9-2.

[0113] As illustrated in Figure 4, the first panel 9-1 has a first main surface 9a, a second main surface 9b, a bottom surface 9c, and a top surface 9d. The first panel 9-1 may be "panel 9" as described in the first embodiment. The second panel 9-2 may be "second panel 9-2" as described in the first embodiment. Since panel 9 and the second panel 9-2 have already been described in the first embodiment, a repetitive description of these panels will be omitted. Note that each of the first panel 9-1 and the second panel 9-2 may be a panel with a thickness of approximately 7.5 cm (see Figure 23(a)), a panel with a thickness of approximately 5 cm (see Figure 23(b)), or a panel with a thickness of approximately 3.5 cm (see Figure 23(c)).

[0114] In the second step ST2, the panel lifting aid 1 and the second panel lifting aid 1-2 are attached to the first panel 9-1. The second step ST2 is the aid attachment process. The aid attachment process (second step ST2) includes attaching the panel lifting aid 1, which has a first roller 32 that can rotate around a first axis AX1, and the second panel lifting aid 1-2, which has a second roller 32-2 that can rotate around a second axis AX2, to the first panel 9-1 (more specifically, the bottom portion 91 of the first panel 9-1). Figure 7 shows a part of the aid attachment process being performed.

[0115] In the example shown in Figure 7, the auxiliary device attachment step (second step ST2) includes hooking the hook portion 35c of the panel erection auxiliary device 1 onto the first panel 9-1 (more specifically, the recess 92 provided on the bottom surface 9c of the first panel 9-1), and attaching the suction portion 55 of the panel erection auxiliary device 1 to the first panel 9-1 (more specifically, the first main surface 9a of the first panel 9-1). As illustrated in Figure 7, in the auxiliary device attachment step (second step ST2), the panel erection auxiliary device 1 may be attached to the first panel 9-1 (more specifically, the bottom portion 91 of panel 9) by only two actions: hooking with the hook portion 35c and suction with the suction portion 55.

[0116] The auxiliary device attachment step (second step ST2) may include hooking the hook portion 35c-2 of the second panel-raising auxiliary device 1-2 (see Figure 17 or Figure 25) onto the first panel 9-1 (more specifically, the recess 92 provided on the bottom surface 9c of the first panel 9-1), and attaching the suction portion 55-2 of the second panel-raising auxiliary device 1-2 to the first panel 9-1 (more specifically, the first main surface 9a of the first panel 9-1).

[0117] In the example shown in Figure 1(a) or Figure 26(a), the auxiliary device attachment step (second step ST2) includes attaching panel erection auxiliary device 1 to the bottom portion 91 of one side (e.g., the left side) of the first panel 9-1, and attaching the second panel erection auxiliary device 1-2 to the bottom portion of the other side (e.g., the right side) of the first panel 9-1. By attaching at least two panel erection auxiliary devices (1, 1-2) to the first panel 9-1, the erection work of the first panel 9-1 can be performed more safely.

[0118] As illustrated in Figure 1(a) or Figure 26(a), in the third step ST3, the mounting fixture 83 of the lifting device 8 is attached to the top of the first panel 9-1. The third step ST3 is the mounting fixture attachment step. The mounting fixture attachment step (third step ST3) includes, for example, attaching the mounting fixture 83, which is supported by the towing element 81 of the winch 8a (e.g., wire, chain, rope, etc.), to the top of the first panel 9-1.

[0119] The mounting bracket installation process (third step ST3) may be performed after the auxiliary device installation process (second step ST2), or before the auxiliary device installation process (second step ST2). Furthermore, the mounting bracket installation process (third step ST3) may be performed in parallel with the auxiliary device installation process (second step ST2).

[0120] As illustrated in Figures 1(b) and 1(c), or Figures 26(b) and 26(c), the first panel 9-1 is erected in the fourth step ST4. The fourth step ST4 is the erection process. In the erection process (fourth step ST4), the first panel 9-1 is erected by lifting the mounting fixture 83 using the lifting device 8 (e.g., winch 8a). More specifically, the erection process (fourth step ST4) includes changing the posture of the first panel 9-1 from a prone posture to an upright posture by lifting the mounting fixture 83 using the lifting device 8 (e.g., winch 8a).

[0121] In the examples shown in Figures 1(b) and 1(c), or Figures 26(b) and 26(c), the uprighting step (fourth step ST4) includes rolling the first roller 32 of the panel uprighting aid 1 and the second roller 32-2 of the second panel uprighting aid 1-2 along the main surface 9a-2 of the second panel 9-2. As the first roller 32 and the second roller 32-2 roll along the main surface 9a-2 of the second panel 9-2, the first panel 9-1 tilts with the first roller 32 and the second roller 32-2 as pivots. Thus, as the first roller 32 and the second roller 32-2 roll, the orientation of the first panel 9-1 changes from a prone position to an upright position.

[0122] In the examples shown in Figures 1(b) and 1(c), or Figures 26(b) and 26(c), the start-up step (fourth step ST4) includes moving both the first roller 32 and the second roller 32-2 described above along the main surface 9a-2 of the second panel 9-2 in a direction from the bottom surface 9c-2 of the second panel 9-2 toward the top surface 9d-2 of the second panel 9-2 (i.e., the second direction DR2 in Figure 1(b) or Figure 26(b)).

[0123] To prevent the first roller 32 from moving in the direction from the top surface 9d-2 of the second panel 9-2 toward the bottom surface 9c-2 of the second panel 9-2 (i.e., the third direction DR3 in Figure 1(b) or Figure 26(b)), it is preferable that the first roller 32 is configured to be rotatable only in the first rotational direction. Similarly, to prevent the second roller 32-2 from moving in the direction from the top surface 9d-2 of the second panel 9-2 toward the bottom surface 9c-2 of the second panel 9-2 (i.e., the third direction DR3 in Figure 1(b) or Figure 26(b)), it is preferable that the second roller 32-2 is configured to be rotatable only in the first rotational direction.

[0124] As illustrated in Figure 28, in the fifth step ST5, the first panel 9-1 is lifted. The fifth step ST5 is a lifting process. In the lifting process (fifth step ST5), the first panel 9-1 is lifted by further lifting the mounting fixture 83 using a lifting device 8 (e.g., a winch 8a). More specifically, the lifting process (fifth step ST5) includes moving the first panel 9-1, the panel lifting fixture 1, and the second panel lifting fixture 1-2 upwards by further lifting the mounting fixture 83 using a lifting device 8 (e.g., a winch 8a) so that both the first roller 32 of the panel lifting fixture 1 and the second roller 32-2 of the second panel lifting fixture 1-2 are separated from the second panel 9-2 (more specifically, the main surface 9a-2 of the second panel 9-2).

[0125] In step 6, ST6, the panel lifting aid 1 and the second panel lifting aid 1-2 are removed from the first panel 9-1. Step 6, ST6 is the aid removal process.

[0126] The auxiliary device removal step (6th step ST6) includes, for example, pulling the panel lifting auxiliary device 1 away from the first panel 9-1 against the suction force between the suction part 55 and the first panel 9-1. The auxiliary device removal step (6th step ST6) also includes, for example, pulling the second panel lifting auxiliary device 1-2 away from the first panel 9-1 against the suction force between the suction part 55-2 and the first panel 9-1.

[0127] The auxiliary device removal step (6th step ST6) may include oscillating the oscillating body 56 (more specifically, the suction part 55) relative to the first panel 9-1 by operating the oscillating operation unit 58 (see Figure 18). More specifically, the auxiliary device removal step (6th step ST6) may include oscillating the oscillating body 56 relative to the support 57 so that the suction part 55 moves away from the first panel 9-1 by operating the oscillating operation unit 58 (see Figure 18) toward the handle 51. Even more specifically, the auxiliary device removal step (6th step ST6) may include oscillating the oscillating body 56 relative to the support 57 so that the suction part 55 moves away from the first panel 9-1 by gripping both the oscillating operation unit 58 (see Figure 18) and the handle 51.

[0128] The auxiliary device removal step (6th step ST6) may include operating the second swinging operation part 58-2 (see Figure 25) of the second panel raising auxiliary device 1-2 to swing the second swinging body 56-2 (more specifically, the suction part 55-2) relative to the first panel 9-1. More specifically, the auxiliary device removal step (6th step ST6) may include operating the second swinging operation part 58-2 (see Figure 25) in a direction toward the handle 51-2 to swing the second swinging body 56-2 relative to the second support 57-2 so that the suction part 55-2 moves away from the first panel 9-1.

[0129] In step 7, ST7, the panel lifting aid 1 and the second panel lifting aid 1-2 are attached to the second panel 9-2. Step 7, ST7 is the second assisting aid attachment process. The second assisting aid attachment process (step 7, ST7) includes attaching the panel lifting aid 1, which was removed from the first panel 9-1, and the second panel lifting aid 1-2, which was removed from the first panel 9-1, to the second panel 9-2 (more specifically, the bottom portion 91-2 of the second panel 9-2). Figure 29 shows part of the second assisting aid attachment process being performed. In the example shown in Figure 29, the second panel 9-2 is a panel stacked on top of the third panel 9-3.

[0130] In the eighth step ST8, the mounting fixture 83 of the lifting device 8 is removed from the first panel 9-1. The eighth step ST8 is the mounting fixture removal process.

[0131] Step 8, ST8, may be executed after step 7, ST7, or before step 7, ST7. Furthermore, step 8, ST8, may be executed in parallel with step 7, ST7.

[0132] As illustrated in Figure 30, in step 9 ST9, the mounting fixture 83 of the lifting device 8 is attached to the top of the second panel 9-2. Step 9 ST9 is the second mounting fixture attachment step. The second mounting fixture attachment step (step 9 ST9) includes attaching the mounting fixture 83, which was removed from the first panel 9-1, to the top of the second panel 9-2.

[0133] Step 9, ST9, may be executed after step 7, ST7, or before step 7, ST7. Furthermore, step 9, ST9, may be executed in parallel with step 7, ST7.

[0134] After the execution of step 9 ST9, the following steps are performed: raising the second panel 9-2, lifting the second panel 9-2, removing the panel raising assist device 1 and the second panel raising assist device 1-2 from the second panel 9-2, and removing the mounting fixture 83 from the second panel 9-2. The multiple steps performed on the third panel 9-3 and the multiple steps performed on the fourth panel are the same as the multiple steps performed on the second panel 9-2, so a repetitive explanation of these steps will be omitted.

[0135] In the panel erection method of the third embodiment, at least two panel erection assist devices (1, 1-2) are attached to the first panel 9-1, and then the orientation of the first panel 9-1 is changed using the first roller 32 and the second roller 32-2, thereby enabling efficient erection of the first panel 9-1. In the third embodiment, the panel erection work can be performed by one person. However, in the third embodiment, the panel erection work may be performed by two or more people.

[0136] The present invention is not limited to the embodiments or modifications described above, and it is clear that each embodiment or modification can be appropriately modified or changed within the scope of the technical concept of the present invention. Furthermore, any component used in each embodiment or modification can be combined with other embodiments or other modifications, and any component can be omitted in each embodiment or modification. [Industrial applicability]

[0137] The panel erection aid and panel erection method of the present invention enable efficient panel erection. Therefore, they are useful for companies that perform panel erection work, or for manufacturers that produce panel erection aids. [Explanation of symbols]

[0138] 1, 1A, 1B... Panel lifting aid, 1-2, 1A-2, 1B-2... Second panel lifting aid, 3... Lower part, 3h... First hole, 4... Pin, 4b... Bolt, 5... Upper part, 5h... Second hole, 6, 6-2... Mounting member, 7... Protective member, 7t... Protective tape, 8... Lifting device, 8a... Winch, 9, 9'... Panel, 9-1... First panel, 9-2... Second panel, 9-3... Third panel, 9a, 9a'... First main surface, 9b... Second main surface, 9c... Bottom surface, 9d... Top surface, 9e... Side surface, 9a-2... Main surface, 9c-2... Bottom surface, 9d-2... Top surface, 10... Multiple panel lifting aids Combination of assisting devices: 30...base structure, 31...bracket, 32...first roller, 32-2...second roller, 33...first support surface, 35...first mounting part, 35c, 35c-2...hooking part, 36a...first ratchet gear, 36b...second ratchet gear, 36-2...ratchet gear, 37a...first ratchet pawl, 37b...second ratchet pawl, 37-2...ratchet pawl, 38a...first biasing member, 38b...second biasing member, 39...over-rotation prevention member, 50...upper structure, 50b...second upper structure, 51, 51-2...handle, 51b...second handle, 52...contact surface, 5 2b...Second contact surface, 52-3...Third contact surface, 52f...Plane, 53...Second base, 55, 55-2...Adsorption part, 55b...Second adsorption part, 55m, 55m-2...Magnet, 55s...Suction cup, 56...Oscillating body, 56-2...Second oscillating body, 57...Support body, 57-2...Second support body, 58...Oscillating operation part, 58-2...Second oscillating operation part, 58a...First end, 58b...Second end, 58c...Bent part, 61...Screw member, 63...Operating part, 70...Tape, 81...Traction element, 83...Mounting device, 91, 91-2...Bottom side part, 92...Recess, 93...Protrusion, 96...Top side part, 301h...First hole part, 30 2h...Second hole section, 303h...Third hole section, 305...Guide wall, 350c...Protruding piece, 380a...First spring, 380b...Second spring, 390...Spiral member, 530...Base plate, 530b...Second base plate, 531b...Main plate section, 532b...Second plate section, 533b...Bent section, 571...Support block, 573...Support pin, 610...Bolt, AS...Oscillating shaft, AT...Mounting section, AT2...Second mounting section, AX1...First shaft, AX2...Second shaft, B, B-2...Base, CP...Replacement part, CP1...First replacement part, CP2...Second replacement part, CP3...Third replacement part, D1...Radius, DR1...First direction,DR2...Second direction, DR3...Third direction, DR4...Fourth direction, H1...Height, L2...Distance, L3...Height dimension, LD1...First distance, LD2...Second distance, OP...Opening, P1...Farthest point, PL1...First surface, PT1...First plane, PT2...Second plane, Q1...First relative position, Q2...Second relative position, Q3...Third relative position, R1...First rotation direction, R2...Second rotation direction, SB...Panel laminate, ST1...First step, ST2...Second step, ST3...Third step, ST4...Fourth step, ST5...Fifth step, ST6...Sixth step, ST7...Seventh step, ST8...Eighth step, ST9...Ninth step, T1...First plate thickness, T2...Second plate thickness, T3...Third plate thickness, TH1...Thickness

Claims

1. A mounting part that is attached to a panel having a first main surface, a second main surface, a bottom surface, and a top surface, A contact surface that can contact the first main surface of the panel, A first roller that is rotatable around a first axis assists in changing the orientation of the panel from a prone position to an upright position. Equipped with Panel mounting support tool.

2. The mounting portion has a hook portion for hooking onto the panel. Panel erection assist device according to claim 1.

3. The mounting portion has an adsorption portion that maintains contact between the panel and the contact surface by magnetic force or vacuum attraction force. The panel erection assist device according to claim 2.

4. The mounting portion is a quick-attachment portion that can be attached to the panel by only two actions: hooking with the hook portion and adsorption with the suction portion. The panel raising aid according to claim 3.

5. When the surface passing through the first axis and parallel to the contact surface is defined as the first surface, and the point of the hooking portion furthest from the first surface is defined as the furthest point, the radius of the first roller is greater than the distance between the first surface and the furthest point. The panel erection assist device according to claim 2.

6. The hook portion is capable of engaging with the recess formed in the bottom surface of the panel. A panel raising aid according to any one of claims 2 to 5.

7. The first roller is configured to be rotatable only in a first rotational direction around the first axis. A panel erection aid according to any one of claims 1 to 5.

8. First ratchet gear, The first ratchet pawl, The second ratchet gear, Second ratchet pawl and It further comprises, The engagement of the first ratchet gear and the first ratchet pawl prevents the first roller from rotating in a second rotational direction opposite to the first rotational direction. The engagement between the second ratchet gear and the second ratchet pawl prevents the first roller from rotating in the second rotational direction. Panel erection assist device according to claim 7.

9. The system further comprises an over-rotation prevention member that prevents the first roller from rotating beyond a predetermined rotation angle in the first rotational direction around the first axis. Panel erection assist device according to claim 7.

10. The base supporting the first roller, A first replacement part having the aforementioned contact surface and being detachable from the base, It is equipped with, The first replacement part is replaceable with a second replacement part having a second contact surface that can contact the main surface of another panel that is thinner than the first replacement part. A panel erection aid according to any one of claims 1 to 5.

11. The lower portion having the first roller, The upper portion where the contact surface is located and It has, The position of the contact surface can be adjusted relative to the lower portion in a direction substantially perpendicular to the contact surface. A panel erection aid according to any one of claims 1 to 5.

12. The rocking body having the aforementioned contact surface, A support that pivotably supports the aforementioned swinging body, A rocking operation unit that rocks the rocking body relative to the support, It further comprises A panel erection aid according to any one of claims 1 to 5.

13. It is further equipped with a handle that can be gripped by the worker, The oscillating body is pivotable relative to the handle, The rocking control unit is positioned so that the operator can simultaneously grip the handle and the rocking control unit with one hand. The panel erection assist device according to claim 12.

14. A panel raising aid according to any one of claims 1 to 5, Second panel erection aid and It is equipped with, The second panel erection aid is, A second mounting portion attached to the aforementioned panel, A third contact surface that can contact the first main surface of the panel, A second roller, which is rotatable around a second axis, assists in changing the orientation of the panel from the prone position to the upright position. Equipped with A combination of multiple panel erection support devices.

15. A step of preparing a panel laminate including a second panel and a first panel stacked on the second panel, The process of attaching a panel lifting aid having a first roller rotatable around a first axis and a second panel lifting aid having a second roller rotatable around a second axis to the first panel having a first main surface, a second main surface, a bottom surface and a top surface, The process of attaching a lifting device mounting bracket to the top of the first panel, The process of raising the first panel by raising the mounting fixture using the lifting device and It is equipped with, The step of raising the first panel includes rolling the first roller of the panel raising aid and the second roller of the second panel raising aid along the main surface of the second panel so that both the first roller of the panel raising aid and the second roller of the second panel raising aid move along the main surface of the second panel. How to set up the panel.

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