Ladder auxiliary tool

Abstract

To provide a ladder auxiliary tool which has a simple structure, allows a ladder to be stably leaned against an object without damaging the object, and is easy to carry.SOLUTION: A ladder auxiliary tool 1 includes an attachment main body 10 that is attached to a ladder that is to be leaned against an object, and an abutment portion 20 that abuts against the object when the ladder is leaned against the object. The attachment main body 10 includes a clamp portion 11 that is detachably attached to the ladder, a holding portion 17 that detachably holds the abutment portion 20, and a connection portion 30 that is provided between the clamp portion 11 and the holding portion 17 and rotatably connects the holding portion 17 to the clamp portion 11.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a ladder assisting device that is attached to a ladder. [Background technology]

[0002] Conventionally, when using ladders for high-altitude work, ladder auxiliary devices have been known that stably secure the ladder to the object against which it is leaning, such as a roof and / or a wall, in order to prevent the ladder from swaying or sliding. Such ladder auxiliary devices are configured to be detachable from existing ladders. Ladder auxiliary devices have also been proposed that are designed to prevent damage to the object against which the ladder is leaning, at the contact point. Incidentally, a widely used existing ladder is one that consists of a pair of left and right supports with multiple rungs attached at a predetermined interval.

[0003] For example, Patent Document 1 discloses a ladder auxiliary device that includes a clamp part detachably fixed to each of a pair of parallel support frames of a ladder, a support arm part rotatably attached to the clamp part via a hinge part, a leg part extending from the tip of the support arm part so as to be able to slide freely inside, and a ground-contact leg part at the tip of the leg. The ladder auxiliary device in Patent Document 1 prevents damage to the object by forming the contact surface of the ground-contact leg part with a rubber cushioning material.

[0004] Patent Document 2 discloses a ladder attachment in which a contact rod that contacts an object is provided across a pair of left and right support rods, and fixing means are provided at the base end of each of the pair of left and right support rods to be detachably fixed to the cross rods of the ladder. The ladder attachment in Patent Document 2 prevents damage to the object by using a contact rod that is a cylindrical or columnar body and contacts the object linearly. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Utility Model Registration No. 3075963 [Patent Document 2] Japanese Patent Application Laid-Open No. 2006-249666 Summary of the Invention [Problem to be solved by the invention]

[0006] The ladder assisting device of Patent Document 1 has a clamp portion, a support arm portion, a leg portion, and a ground-contact leg portion that are each paired to correspond to a pair of support frames of the ladder. Meanwhile, the ladder assisting device of Patent Document 1 makes the pair of legs inseparable by connecting the middle portions of the legs to each other with a connecting portion. Therefore, the ladder assisting device has a roughly H-shape with a constant width in all directions in a plan view. This makes it cumbersome to carry the ladder assisting device.

[0007] In addition, in the ladder attachment of Patent Document 2, the abutment rods are inseparably connected to the ends of the left and right support rods. Therefore, when the ladder attachment is removed from the ladder, it has a roughly U-shape with a fixed width in both directions in a plan view. This makes it difficult to carry the ladder support device. Furthermore, the ladder attachment of Patent Document 2 has a structure that makes it difficult to replace the abutment rods. Therefore, the stability of the ladder leaning against something may be compromised due to the abutment rods being insufficient in length.

[0008] The problem that the present invention aims to solve is to provide a ladder auxiliary device that has a simple configuration, can stably lean a ladder against an object without damaging the object, and is easy to carry. [Means for solving the problem]

[0009] The ladder aid of the present invention, which has been created to solve the above-mentioned problems, comprises an attachment main body portion that is attached to a ladder that is to be leaned against an object, and an abutment portion that abuts against the object when the ladder is leaned against it, and the attachment main body portion comprises a clamp portion that is detachably attached to the ladder, a holding portion that detachably holds the abutment portion, and a connection portion that is arranged between the clamp portion and the holding portion and rotatably connects the holding portion to the clamp portion.

[0010] Another aspect of the ladder assisting device of the present invention is characterized in that the abutment portion has a core member and a cushioning member that removably covers the core member, and the holding portion is formed to be able to fit onto the core member.

[0011] Another aspect of the ladder aid of the present invention is characterized in that the clamp portion comprises a pair of legs arranged opposite each other, a connecting portion connecting the base ends of the pair of legs to each other, and a tightening portion having a screw shank portion that passes through one of the pair of legs and screws into it, and the connecting portion has a parallel surface that is parallel to the axial direction of the screw shank portion when viewed from the side, and an inclined surface that is formed contiguous with the parallel surface on the leg side of at least one of the pair of legs and is inclined relative to the parallel surface, and the connecting portion is attached to the parallel surface or the inclined surface. [Effects of the Invention]

[0012] In the ladder assisting device of the present invention, the mounting body that is attached to the ladder includes a clamp and a holding part that detachably holds the abutment that abuts against the object, making it possible to easily replace the abutment. Furthermore, the mounting body includes a connecting part that is disposed between the clamp and the holding part and that rotatably connects the holding part to the clamp, making it possible to easily change the orientation of the abutment. Furthermore, the mounting body can be easily attached to and detached from the ladder using the clamp, making it easy to transport the ladder assisting device.

[0013] In the ladder assisting device of the present invention, the abutting part has a core member and a shock-absorbing part that detachably covers the core member, so the shock-absorbing part can be easily replaced. Also, the holding part of the mounting body is formed to be able to fit onto the core member, so the abutting part can be attached and detached from the holding part more easily. Because the abutting part can be easily attached and detached, even when the mounting body is attached to the ladder, by removing only the abutting part, it becomes easy to carry the ladder and ladder assisting device.

[0014] The ladder auxiliary device of the present invention has, when viewed from the side, a parallel plane parallel to the axial direction of the screw shaft portion of the tightening portion provided on the clamp portion and an inclined surface formed continuously with the parallel plane and inclined relative to the parallel plane, and the connecting portion connecting the clamp portion and the holding portion is attached to the parallel plane or the inclined surface, making it possible to diversify the combinations of orientations of the abutment portion relative to the clamp portion depending on the shape of the object against which the ladder is leaned and / or the space in which the ladder is placed. [Brief explanation of the drawings]

[0015] [Figure 1] 1 is a schematic diagram illustrating a ladder assisting device according to a first embodiment of the present invention. FIG. [Figure 2] 1 is an exploded perspective view of a mounting body of a ladder auxiliary device according to a first embodiment of the present invention. FIG. [Figure 3] 1 is a perspective view illustrating a state in which a ladder assisting device according to a first embodiment of the present invention is attached to a ladder. [Figure 4] 1 is a perspective view illustrating a state in which a ladder assisting device according to a first embodiment of the present invention is attached to a ladder. [Figure 5] 1 is a schematic side view illustrating a state in which a ladder assisting device according to a first embodiment of the present invention is in use. FIG. [Figure 6] 1 is a schematic side view illustrating a state in which a ladder assisting device according to a first embodiment of the present invention is in use. FIG. [Figure 7] FIG. 10 is an exploded perspective view of the mounting body of the ladder auxiliary device according to the second embodiment of the present invention. [Figure 8]FIG. 10 is a perspective view illustrating the state in which the ladder assist device according to the second embodiment of the present invention is in use. [Figure 9] FIG. 10 is a schematic side view illustrating the state in which a ladder assisting device according to a second embodiment of the present invention is in DETAILED DESCRIPTION OF THE INVENTION

[0016] The present invention provides a ladder auxiliary device that is attached to a ladder leaning against an object such as a roof and / or a wall, and by devising an attachment structure to the ladder, it is possible to improve the stability of the ladder leaning against the object and to improve the ease of carrying the ladder auxiliary device. Hereinafter, embodiments of the present invention will be described with reference to the drawings. Fig. 1 is a perspective view illustrating an overview of a ladder auxiliary device 1 according to a first embodiment. Fig. 2 is an exploded perspective view of an attachment main body 10 of the ladder auxiliary device 1.

[0017] The overall configuration of a ladder assisting device 1 according to a first embodiment of the present invention will be described. The ladder assisting device 1 comprises an attachment main body 10 that is attached to a ladder 100 that is to be leaned against an object W, and an abutment part 20 that abuts against the object W when the ladder 100 is leaned against it. The ladder 100 is a widely used existing ladder, and comprises, for example, a pair of left and right support posts 101 and a plurality of rungs 102 spanning the pair of left and right support posts 101 (see Figures 3 and 4).

[0018] The mounting body 10 comprises a clamping part 11 that is detachably attached to the ladder 100, and a holding part 17 that detachably holds the abutment part 20. The clamping part 11 and the holding part 17 are connected by a connecting part 30.

[0019] The contact portion 20 is made up of a core member 21 that fits into the holding portion 17, and a buffer member 22 that covers the core member 21. The core member 21 is made of a hard polyvinyl chloride pipe, an aluminum pipe, or the like. The buffer member 22 is a cylindrical body made of urethane foam, polyethylene foam, or the like, with a predetermined thickness (for example, 6 to 20 mm), with slits cut along its length. By providing these slits, the buffer member 22 can be attached and detached from the outer periphery of the core member 21.

[0020] Each component of the mounting body 10 will be further described.

[0021] The clamping portion 11 is composed of a frame portion 12 and a fastening portion 16. The clamping portion 11 fixes the mounting body portion 10 to the ladder 100 by clamping a support 101 or a crosspiece 102 of the ladder 100 between a leg portion 14 (described later) of the frame portion 12 and a fixing seat 16c (described later) of the fastening portion 16.

[0022] The frame portion 12 is formed as a single unit by cutting or the like, and has a generally U-shaped overall shape. The frame portion 12 is composed of a pair of legs 13, 14 and a connecting portion 15 that connects the base ends of the pair of legs 13, 14. One leg 13 of the pair of legs 13, 14 is provided with a screw hole. A screw shaft 16a of a fastening portion 16, which will be described later, is threaded into the screw hole.

[0023] The fastening portion 16 includes a screw shaft portion 16a, a fixing seat 16c provided at one end of the screw shaft portion 16a, and a knob 16b provided at the other end of the screw shaft portion 16a.

[0024] The threaded shaft portion 16a is a shaft made of metal, and has a male screw formed on the outer circumferential surface thereof, which passes through a screw hole provided in the leg portion 13 and screws into the screw hole.

[0025] The fixing seat 16c is formed from an elastic material such as rubber and / or a material such as metal. In the clamp portion 11, the fixing seat 16c is provided so that its tip surface faces the inner surface of the other leg portion 14 that faces the leg portion 13 onto which the screw shaft portion 16a is screwed.

[0026] The knob 16b has a generally disk-shaped outer shape. The knob 16b is provided so as not to rotate relative to the screw shaft portion 16a. The outer peripheral surface of the knob 16b is provided with a plurality of projections and recesses to make it easier for the operator to grip. When the operator operates the knob 16b clockwise or counterclockwise to rotate the screw shaft portion 16a, the fixing seat 16c moves toward and away from the other leg portion 14.

[0027] The base ends of the pair of legs 13, 14 of the frame section 12 are connected by a connecting section 15. The connecting section 15 is a rectangular plate in the frame section 12 that is thicker than the legs 13, 14 and has a slot 15c formed therethrough in the width direction. The slot 15c is provided to reduce the weight of the frame section 12. The connecting section 15 has a parallel surface 15a in a side view that is parallel to the axial direction of the screw shaft section 16a of the fastening section 16 and perpendicular to a plane extended from the inner surface of the leg section 14 that faces the fixing seat 16c, and an inclined surface 15b that is formed contiguous with the parallel surface 15a on the leg 13 side and is inclined relative to the parallel surface 15a.

[0028] A screw hole 15d is provided at approximately the center of the parallel surface 15a in a direction perpendicular to the formation direction of the elongated hole 15c. One end of a connecting part 30 that connects the frame part 12 to the holding part 17 that holds the abutting part 20 is connected to the screw hole 15d.

[0029] The inclined surface 15b is formed by chamfering the corner where the connecting portion 15 and the leg portion 13 intersect in a side view, and is inclined at approximately 45 degrees with respect to the parallel surface 15a. The inclined surface 15b is provided with a screw hole (not shown) for attaching the fall prevention portion 19. The fall prevention portion 19 is intended to prevent the mounting body 10 from falling off the ladder 100. The fall prevention portion 19 includes an attachment portion 19a having a male screw (not shown) that screws into a screw hole formed in the inclined surface 15b of the frame portion 12 of the clamp portion 11, a wire 19b with loops at both ends, a screw-type carabiner 19c attached to the loop at one end of the wire 19b, and a carabiner 19d attached to the loop at the other end of the wire 19b and having a gate that can swing freely. By connecting the carabiner 19c to the mounting portion 19a, winding the wire 19b around the support 101 or crosspiece 102 of the ladder 100, and opening the gate to connect the carabiner 19d to the carabiner 19c, the mounting main body portion 10 can be suspended from the ladder 100 by the wire 19b.

[0030] The connection part 30 is composed of a connection shaft 31, a connection screw 32 connected to one end of the connection shaft 31 and connected to the clamp part 11, and a holding part fixing screw 33 connected to the other end of the connection shaft 31 and fixing the holding part 17. The connection shaft 31 has a generally cylindrical shape with female threads formed on both ends. The connection screw 32 is a so-called nipple, with male threads 32a, 32b formed on both ends of a linear shaft.

[0031] The retaining portion 17 is a member that removably holds the core member 21 of the abutting portion 20. The retaining portion 17 has a generally C-shaped cross section. The generally C-shaped opening in the retaining portion 17 that receives the core member 21 is formed by cutting a predetermined width along the axial direction of the tubular member's peripheral wall, whose inner diameter is equal to the outer diameter of the core member 21. The predetermined width here is, for example, a width corresponding to an arc portion having a central angle of 100 to 170 degrees about the central axis of the tubular member. The retaining portion 17 is made of a material that has appropriate strength and whose opening can be expanded by applying force, such as a hard polyvinyl chloride pipe. Alternatively, the retaining portion 17 may be made by processing a metal sheet into a generally C-shaped shape.

[0032] The connection shaft 31 is non-rotatably connected to the holding portion 17 by fastening the holding portion fixing screw 33 through the holding portion 17 at one end of the connection shaft 31. One male thread 32a of the connection screw 32 is threadedly engaged with the other end of the connection shaft 31, and the other male thread 32b of the connection screw 32 is threadedly engaged with a screw hole 15d formed in the parallel surface 15a on the frame portion 12 side. This connects the clamp portion 11 and the holding portion 17 to each other via the connection portion 30. Note that, by interposing the connection screw 32 between the connection shaft 31 and the clamp portion 11, the holding portion 17 is rotatable around the axis of the connection shaft 31 relative to the clamp portion 11 (see FIG. 5). Furthermore, by connecting the connection shaft 31 to the parallel surface 15a of the frame portion 12 at the clamp portion 11, the axial direction of the connection shaft 31 and the axial direction of the threaded shaft portion 16a of the fastening portion 16 are positioned perpendicular to each other.

[0033] Next, the state of use of the ladder auxiliary device 1 according to this embodiment will be described. Figures 3 and 4 are perspective views illustrating the state in which the ladder auxiliary device 1 is attached to a ladder 100. Figures 5 and 6 are schematic side views illustrating the state in which the ladder auxiliary device 1 is used. Note that the fall prevention part 19 is not shown in Figures 3 to 6.

[0034] The ladder support device 1 is attached to the rung 102 or the support 101 of the ladder 100 via the clamp 11 so that the contact portion 20 faces in the direction in which the ladder 100 is leaned, as indicated by the white arrow in Figures 3 and 4. That is, the ladder support device 1 is attached to the ladder 100 by clamping the rung 102 from above and below or the support 101 from the left and right with the clamp 11. The clamp 11 can clamp the support 101 and the rung 102 of different thicknesses and / or shapes because the distance between the leg 14 of the frame 12 and the fixing seat 16c of the fastening portion 16 can be easily changed by operating the knob 16b. Note that the contact surface of the leg 14 with the support 101 or the rung 102 is not limited to a flat shape; it may have a V-shaped notch formed to match the shape of the support 101 or the rung 102, or an anti-slip material may be attached.

[0035] The number of mounting bodies 10 attached to one support 101 or one rung 102 of the ladder 100 can be changed depending on the length of the support 101 or the length of the rung 102. Furthermore, because the core member 21 is detachable from the mounting body 10, the length of the core member 21 can also be easily changed. That is, the number of mounting bodies 10 equipped with holding portions 17 for one core member 21 may be two, as shown in FIGS. 3 and 4, or may be three or more. From the viewpoint of the stability of the ladder 100 when leaned against the object W, it is preferable that the number of mounting bodies 10 be two or more. Note that if the length of one core member 21 is short, it is not precluded from having only one mounting body 10 equipped with holding portions 17.

[0036] In the ladder auxiliary device 1, the connecting shaft 31 is connected to the frame portion 12 via the connecting screw 32 at the connecting portion of the abutment portion 20. Therefore, by loosening the male thread 32b of the connecting screw 32 from the screw hole 15d of the frame portion 12, the orientation of the holding portion 17 can be changed integrally with the connecting shaft 31 and the connecting screw 32. Therefore, the orientation of the core member 21 of the abutment portion 20 held by the holding portion 17 relative to the clamp portion 11 attached to the ladder 100 can be adjusted. In other words, when the mounting body 10 is attached to the rung 102, the orientation of the abutment portion 20 having the core member 21 can be freely changed to an orientation parallel to the rung 102 as shown in FIGS. 3 and 5, or an orientation parallel to the support 101 as shown in FIG. 6, for example.

[0037] Furthermore, as shown in FIGS. 5 and 6 , when the ladder 100 equipped with the ladder assisting device 1 is leaned against an object W, such as a wall or a roof, the abutment portion 20 abuts against the object W. In other words, the support 101 of the ladder 100 does not hit the object W. Furthermore, when the abutment portion 20 abuts against the object W, the buffer member 22 surrounding the core member 21 directly contacts the object W. In this way, because the abutment portion 20 abuts against the object W via the buffer member 22, the ladder 100 can be leaned against an indoor wall, for example, that is covered with wallpaper, without damaging the wall. Furthermore, during operation, the buffer member 22 deforms due to the load applied, increasing the contact area with the wall, thereby stabilizing the ladder 100 when leaned against the object W.

[0038] The buffer member 22 has a slit formed along its length. The buffer member 22 can be easily attached to and detached from the core member 21 supported by the holding portion 17 by expanding the slit. Therefore, if the buffer member 22 becomes soiled, it can be easily replaced. When attaching the buffer member 22 to the core member 21 held by the holding portion 17, the connecting portion 30 connecting the holding portion 17 and the clamp portion 11 protrudes from the slit. Furthermore, by forming the buffer member 22 longer than the core member 21 and attaching it to the core member 21 so that it protrudes slightly beyond both ends of the core member 21, it is possible to prevent the tip of the core member 21 from damaging a wall or the like when leaning the ladder 100 equipped with the ladder auxiliary device 1 against it.

[0039] Next, a ladder auxiliary device 2 according to a second embodiment of the present invention will be described. Fig. 7 is an exploded perspective view of the mounting body 110 of the ladder auxiliary device 2. Fig. 8 is a perspective view of the mounting body 110 of the ladder auxiliary device 2. Fig. 9 is a side schematic view illustrating the state in which the ladder auxiliary device 2 is in use. In the ladder auxiliary device 2 according to the second embodiment, the same members as those in the ladder auxiliary device 1 according to the first embodiment described above are given the same reference numerals, and detailed descriptions thereof will be omitted.

[0040] Compared to the ladder assisting device 1 according to the first embodiment, the ladder assisting device 2 according to the second embodiment differs from the ladder assisting device 1 according to the first embodiment in that the shape of the frame portion 112 of the mounting body 110 of the ladder assisting device 2 is different from the frame portion 12 of the ladder assisting device 1. That is, in the ladder assisting device 2, in addition to the inclined surface 15b provided at an angle relative to the parallel surface 15a of the connecting portion 115 of the frame portion 112, an additional inclined surface 15e is formed. The inclined surface 15e is provided symmetrically with the inclined surface 15b to which the fall-off prevention portion 19 is attached, across the parallel surface 15a. The inclined surface 15e is formed by chamfering the corner where the connecting portion 15 and the leg portion 14 intersect in a side view, and is inclined at approximately 45 degrees relative to the parallel surface 15a. The inclined surface 15e is provided with a screw hole 15f capable of receiving the male thread 32b of the connecting screw 32 of the connecting portion 30. In the frame part 112, the screw hole 15d in the parallel surface 15a and the screw hole 15f in the inclined surface 15e are formed to have the same diameter, so that the mounting position of the holding part 17 can be changed via the connecting part 30. In other words, the mounting body part 110 of the ladder auxiliary device 2 has a configuration in which one end of the connecting part 30 removed from the parallel surface 15a can be attached to the inclined surface 15e.

[0041] When the ladder auxiliary tool 2 with the connection part 30 attached to the inclined surface 15e is attached to the ladder 100 so that the axial direction of the screw shaft part 16a is along the longitudinal direction of the support 101 or the rung 102, the axis of the connection shaft 31 is inclined at approximately 45 degrees relative to the axis of the support 101 or the axis of the rung 102. Therefore, as shown in Figure 9, the ladder auxiliary tool 2 can be attached to the rung 102 of the ladder 100, which has a square cross section, so that the inclined surface 15e of the frame part 112 faces diagonally downward.

[0042] Furthermore, the holding portion 17 is rotatable relative to the frame portion 112 via the connecting portion 30. The core member 21 is slidable in the direction of its central axis relative to the holding portion 17. As a result, the orientation and length of the abutting portion 20 relative to the clamping portion 11 can be easily adjusted depending on the shape and / or space of the object W to be leaned against. In other words, the orientation and length of the abutting portion 20 can also be easily adjusted for the ladder 100 to which the clamping portion 11 is attached.

[0043] 9, when the ladder auxiliary device 2 is attached to the crosspiece 102 so that the inclined surface 15e of the frame portion 112 faces diagonally downward, the abutting portion 20 is positioned diagonally downward from the clamping portion 11. In this case, by bringing the abutting portion 20 into contact with the upper surface of the object W, such as a sloped roof, the abutting portion 20 and the connecting portion 30 support the ladder 100 from diagonally below, thereby stabilizing the ladder 100 when leaned against the wall.

[0044] In the ladder auxiliary device 2, the screw hole 15d in the parallel surface 15a and the screw hole 15f in the inclined surface 15e are formed to correspond to the connection screw (male screw 32b) of the connection part 30, and the screw hole formed in the inclined surface 15b is formed to correspond to the male screw (not shown) for attachment provided on the attachment part 19a of the fall-off prevention part 19. In other words, each screw hole is formed with an inner diameter according to the respective screw-engagement object. Note that if the male screws of the different screw-engagement objects are all the same shape, the screw hole formed in the inclined surface 15b will also have the same diameter as the screw hole 15d in the parallel surface 15a and the screw hole 15f in the inclined surface 15e. In this case, it is possible to attach the connection part 30 to the inclined surface 15b as well. However, as shown in Figure 9, when the mounting body 110 is attached to the cross beam 102 so that the object W is located below the frame portion 12, it is preferable to attach the connection portion 30 to the inclined surface 15e so that the knob 16b is located above the cross beam 102, from the standpoint of reducing the load on the screw shaft portion 16a of the tightening portion 16 and ensuring stability.

[0045] The use states of the ladder auxiliary device 1 of the first embodiment and the ladder auxiliary device 2 of the second embodiment described above have been described in terms of when they are attached to a ladder 100, but it goes without saying that the ladder auxiliary device 1 and the ladder auxiliary device 2 can also be attached to a stepladder that can be transformed into a ladder state, known as a ladder-cum-stepladder.

[0046] It can be said that the above-described multiple exemplary embodiments have the following configuration: That is, the ladder auxiliary devices 1 and 2 have an attachment main body 10 attached to a ladder 100 that is to be leaned against an object W, and an abutment part 20 that abuts against the object W when the ladder 100 is leaned against it, and the attachment main body 10 has a clamp part 11 that is detachably attached to the ladder 100, a holding part 17 that detachably holds the abutment part 20, and a connection part 30 that is provided between the clamp part 11 and the holding part 17 and rotatably connects the holding part 17 to the clamp part 11.

[0047] In addition, the ladder auxiliary devices 1 and 2 have a contact portion 20 which has a core member 21 and a buffer member 22 which removably covers the periphery of the core member 21, and the holding portion 17 is formed so as to be able to fit onto the core member 21.

[0048] The ladder auxiliary devices 1, 2 have a clamp section 11 which comprises a pair of legs 13, 14 arranged opposite each other, a connecting section 15 which connects the base ends of the pair of legs 13, 14 to each other, and a fastening section 16 which has a screw shank 16a which passes through one of the pair of legs 13, 14 (leg 13) and screws into it, and the connecting section 15 has a parallel surface 15a which is parallel to the axial direction of the screw shank 16a in a side view, and an inclined surface 15e which is formed continuous with the parallel surface 15a on the side of at least one of the pair of legs 13, 14 and is inclined relative to the parallel surface 15a, and a connection section 30 is attached to the parallel surface 15a or the inclined surface 15e.

[0049] The above-described embodiment is an example of the present invention, and the ladder assisting device according to the present invention is not limited to the above-described embodiment. Therefore, even if it is not the above-described embodiment, various modifications are possible depending on the design, etc., as long as they do not deviate from the technical idea of ​​the present invention. Furthermore, the effects described in this disclosure are merely examples and are not limited, and other effects may also be obtained. [Explanation of symbols]

[0050] 1 Ladder support 2 Ladder support equipment 10 Mounting body 11 Clamp section 12 Frame section 13 Legs 14 Legs 15 Connecting part 15a parallel plane 15b Slope 15e Slope 16 Fastening part 16a Screw shaft 16b Knob 16c fixed seat 17 Holding part 19 Falling prevention part 19a Mounting part 19b wire 19c carabiner 19d Carabiner 20 Contact part 21 Core member 22 Cushioning material 30 Connection 31 Connecting shaft 32 connecting screw 33 Retaining part fixing screw 100 ladders 101 Post 102 Crosspiece 110 Mounting body 112 Frame section 115 Connection part W Object

Claims

1. an attachment main body that is attached to a ladder that is to be leaned against an object; a contact portion that contacts an object when the ladder is leaned against the object; Equipped with The mounting body portion is a clamp part that is detachably attached to the ladder; a holding portion that detachably holds the contact portion; a connecting portion provided between the clamp portion and the holding portion and configured to rotatably connect the holding portion to the clamp portion; A ladder assisting device characterized by comprising:

2. the abutment portion has a core member and a buffer member that detachably covers the periphery of the core member, The holding portion is formed to be able to fit onto the core member.

2. The ladder aid according to claim 1.

3. The clamping portion includes a pair of legs arranged opposite to each other, a connecting portion connecting base ends of the pair of legs to each other, and a fastening portion having a screw shaft portion that penetrates one of the pair of legs and screws into it, The connecting portion has a parallel surface parallel to the axial direction of the screw shaft portion in a side view, and an inclined surface formed continuously with the parallel surface on at least one leg side of the pair of legs and inclined with respect to the parallel surface, The connection portion is attached to the parallel surface or the inclined surface.

3. A ladder aid according to claim 1 or claim 2.

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