Ladder support

Abstract

To provide a ladder auxiliary tool which has a simple structure, can stably lean a ladder against an object without damaging the object, and can be easily carried. [Solution] The ladder auxiliary device 1 comprises an attachment main body portion 10 which is attached to a ladder to be leaned against an object, and an abutment portion 20 which abuts against the object when the ladder is leaned against it. The attachment main body portion 10 comprises a clamp portion 11 which is removably attached to the ladder, a holding portion 17 which removably holds the abutment portion 20, and a connection portion 30 which is provided between the clamp portion 11 and the holding portion 17 and which rotatably connects the holding portion 17 to the clamp portion 11.

Description

[Technical field]

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

[0002] Conventionally, when using ladders for high-altitude work, ladder auxiliary devices are known for stably fixing 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 sideways. Such ladder auxiliary devices are configured to be detachable from existing ladders. There have also been proposed ladder auxiliary devices that are designed to prevent damage to the object against which the ladder is leaning, at the contact portion. Incidentally, a ladder that is widely used as an existing ladder is one that is made up of a pair of left and right supports and multiple cross bars at a specified interval.

[0003] For example, Patent Document 1 discloses a ladder auxiliary tool that includes a clamp part detachably fixed to each of a pair of parallel support frames of a ladder, a support arm part rotatably provided on 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 inside, and a ground-contact leg part at the tip of the leg part. The ladder auxiliary tool in Patent Document 1 prevents damage to the object by forming the contact surface of the ground-contact leg part from a rubber cushioning material.

[0004] Patent Document 2 discloses a ladder attachment in which an abutment rod that abuts against an object is provided across a pair of left and right support rods, and fixing means are provided on the base end side 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 as a cylindrical or columnar body that abuts against the object in a linear manner. [Prior art documents] [Patent documents]

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

[0006] The ladder assisting tool of Patent Document 1 has a clamp part, a support arm part, a leg part, and a ground leg part that are each provided in pairs to correspond to a pair of support frames of the ladder. On the other hand, the ladder assisting tool of Patent Document 1 is made inseparable by connecting the middle parts of the pair of legs to each other with a connecting part. Therefore, the ladder assisting tool has a substantially H-shape with a certain width in the front, back, left and right directions in a plan view. This makes it cumbersome to carry the ladder assisting tool.

[0007] In addition, in the ladder attachment of Patent Document 2, the abutment rod is inseparably connected to the tip of the left and right support rods. Therefore, when the ladder attachment is removed from the ladder, it becomes a roughly U-shape with a certain width in the front, back, left and right in a plan view. This makes it cumbersome to carry the ladder auxiliary tool. Furthermore, the ladder attachment of Patent Document 2 has a structure that makes it difficult to replace the abutment rod. Therefore, the stability of the ladder leaning against it may be lost due to the insufficient length of the abutment rod.

[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 developed to solve the above-mentioned problems, comprises an attachment main body portion that is attached to a ladder to be leaned against an object, and an abutment portion that abuts against the object when the ladder is leaned against it, and is characterized in that the attachment main body portion comprises a clamp portion that is removably attached to the ladder, a holding portion that removably holds the abutment portion, and a connection portion that is provided between the clamp portion and the holding portion and that rotatably connects the holding portion to the clamp portion.

[0010] This issue Clearly This ladder auxiliary device 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 into 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 fastening portion having a screw shaft portion that passes through one of the pair of legs and screws into it, and the connecting portion is provided with a parallel surface that is parallel to the axial direction of the screw shaft portion in a side view, and an inclined surface that is formed contiguous with the parallel surface on the side of at least one of the pair of legs and is inclined relative to the parallel surface, and the connection portion is attached to the parallel surface or the inclined surface. Effect of the Invention

[0012] In the ladder assisting device of the present invention, the mounting body that is attached to the ladder includes a clamping portion and a holding portion that detachably holds the abutting portion that abuts against the object, so that the abutting portion can be easily replaced. Also, the mounting body includes a connecting portion that is provided between the clamping portion and the holding portion and that rotatably connects the holding portion to the clamping portion, so that the orientation of the abutting portion can be easily changed. Also, the mounting body can be easily attached to and detached from the ladder by the clamping portion, so that the ladder assisting device can be easily transported.

[0013] In the ladder aid of the present invention, the abutment part has a core member and a cushioning member that detachably covers the core member, so that the cushioning member can be easily replaced. Also, the holding part of the mounting body is formed to be able to fit into the core member, so that the abutment part can be attached and detached from the holding part more easily. Since the abutment part can be easily attached and detached, the ladder and the ladder aid can be easily transported by removing only the abutment part even when the mounting body is attached to the ladder.

[0014] The ladder aid 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 fastening part provided on the clamp part and an inclined surface formed continuously with the parallel plane and inclined relative to the parallel plane, and the connection part connecting the clamp part and the holding part is attached to the parallel plane or the inclined surface, so that it is possible to diversify the combinations of orientations of the abutment part relative to the clamp part depending on the shape of the object against which the ladder is leaned and / or the space in which the ladder is placed. [Brief description of the drawings]

[0015] [Figure 1] FIG. 1 is a schematic diagram illustrating a ladder assisting tool according to a first embodiment of the present invention. [Diagram 2] FIG. 2 is an exploded perspective view of the mounting main body of the ladder auxiliary device according to the first embodiment of the present invention. [Diagram 3] FIG. 1 is a perspective view illustrating a ladder assisting device according to a first embodiment of the present invention attached to a ladder. [Figure 4] FIG. 1 is a perspective view illustrating a ladder assisting device according to a first embodiment of the present invention attached to a ladder. [Diagram 5] FIG. 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. [Figure 6] FIG. 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. [Figure 7] FIG. 11 is an exploded perspective view of a mounting main body of a ladder auxiliary device according to a second embodiment of the present invention. [Figure 8]FIG. 11 is a perspective view illustrating the use state of a ladder assist device according to a second embodiment of the present invention. [Figure 9] FIG. 11 is a schematic side view illustrating a state in which a ladder assisting device according to a second embodiment of the present invention is in DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

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

[0017] The overall configuration of the ladder auxiliary tool 1 according to the first embodiment of the present invention will be described. The ladder auxiliary tool 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 the object W. The ladder 100 is a widely used existing ladder, and comprises, for example, a pair of left and right posts 101 and a number of rungs 102 spanning the pair of left and right posts 101 (see Figs. 3 and 4).

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

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

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

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

[0022] The frame portion 12 is integrally formed by cutting or the like, and has a generally U-shaped overall shape. The frame portion 12 is also 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 portion 16a of a fastening portion 16, which will be described later, is screwed into the screw hole.

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

[0024] The threaded shaft portion 16a is a shaft made of metal. A male screw that penetrates a screw hole provided in the leg portion 13 and screws into the screw hole is formed on the outer circumferential surface of the threaded shaft portion 16a.

[0025] The fixing seat 16c is formed of 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 to which the screw shaft portion 16a is screwed.

[0026] The knob 16b has a substantially disk-shaped outer shape. The knob 16b is provided so as not to be rotatable relative to the screw shaft portion 16a. The outer peripheral surface of the knob 16b is provided with a plurality of projections and recesses so that the operator can easily grip the knob 16b. When the operator operates the knob 16b clockwise or counterclockwise to rotate the screw shaft portion 16a, the fixing seat 16c comes into contact with and separates 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 long hole 15c formed therethrough in the width direction. The long hole 15c is provided to reduce the weight of the frame section 12. The connecting section 15 has a parallel surface 15a that is parallel to the axial direction of the screw shaft section 16a of the fastening section 16 in a side view 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 continuously with the parallel surface 15a on the leg section 13 side and is inclined with respect 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 long hole 15c. One end of a connection part 30 that connects the frame part 12 to the holding part 17 that holds the abutment part 20 is connected to the screw hole 15d.

[0029] The inclined surface 15b is a portion 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 for preventing the mounting body portion 10 from falling off the ladder 100. The fall prevention portion 19 has a mounting 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 in the clamp portion 11, a wire 19b with both ends formed in rings, a screw-type carabiner 19c attached to the ring at one end of the wire 19b, and a carabiner 19d attached to the ring at the other end of the wire 19b and provided with a gate that can swing freely. By connecting carabiner 19c to mounting portion 19a, winding wire 19b around the support 101 or rung 102 of ladder 100, and opening the gate to connect carabiner 19d to carabiner 19c, the mounting main body portion 10 can be suspended from the ladder 100 by 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 holding portion 17 is a member that holds the core member 21 of the abutment portion 20 so that it can be fitted and removed. The holding portion 17 has a substantially C-shaped cross section. In the holding portion 17, the opening portion of the substantially C-shaped cross section that receives the core member 21 is formed by cutting the peripheral wall of a cylindrical member whose inner diameter is equal to the outer diameter of the core member 21 by a predetermined width along the axial direction of the tube. The predetermined width here is, for example, a width equivalent to a circular arc portion having a central angle of 100 degrees to 170 degrees centered on the central axis of the tube of the cylindrical member. The holding portion 17 is formed of a material that has a suitable strength and whose opening can be expanded by applying a force, such as a hard polyvinyl chloride pipe. The holding portion 17 may also be a metal sheet processed into a substantially C-shaped shape.

[0032] The connection shaft 31 is connected to the holding part 17 in a non-rotatable manner by fastening the holding part fixing screw 33 through the holding part 17 at one end of the connection shaft 31. In addition, one male screw 32a of the connection screw 32 is screwed into the other end of the connection shaft 31, and the other male screw 32b of the connection screw 32 is screwed into the screw hole 15d formed in the parallel surface 15a on the frame part 12 side. As a result, the clamp part 11 and the holding part 17 are connected to each other by the connection part 30. Note that, by interposing the connection screw 32 between the connection shaft 31 and the clamp part 11, the holding part 17 is rotatable around the axis of the connection shaft 31 relative to the clamp part 11 (see FIG. 5). In addition, by connecting the connection shaft 31 to the parallel surface 15a of the frame part 12 at the clamp part 11, the axial direction of the connection shaft 31 and the axial direction of the screw shaft part 16a of the fastening part 16 are in a positional relationship in which they are perpendicular to each other.

[0033] Next, the state of use of the ladder auxiliary tool 1 according to this embodiment will be described. Figures 3 and 4 are perspective views explaining the state in which the ladder auxiliary tool 1 is attached to a ladder 100. Figures 5 and 6 are schematic side views explaining the state in which the ladder auxiliary tool 1 is used. Note that the falling prevention part 19 is omitted from Figures 3 to 6.

[0034] The ladder auxiliary tool 1 is attached to the crosspiece 102 or the support 101 of the ladder 100 via the clamp 11 so that the contact part 20 faces the direction in which the ladder 100 is leaned as shown by the white arrow in Fig. 3 and Fig. 4. That is, the ladder auxiliary tool 1 is attached to the ladder 100 by clamping the crosspiece 102 from above and below or clamping the support 101 from the left and right with the clamp 11. The clamp 11 can clamp both the support 101 and the crosspiece 102 of different thicknesses and / or shapes because the distance between the leg 14 of the frame part 12 and the fixing seat 16c of the fastening part 16 can be easily changed by operating the knob 16b. The contact surface of the leg 14 with the support 101 or the crosspiece 102 is not limited to a flat shape, and a V-shaped notch may be formed according to the shape of the support 101 or the crosspiece 102, or a non-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 according to the length of the support 101 or the length of the rung 102. In addition, since the core member 21 is detachable from the mounting body 10, the length of the core member 21 can also be easily changed. In other words, the number of mounting bodies 10 equipped with the holding portion 17 for holding 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, the number of mounting bodies 10 is preferably two or more. Note that, when the length of one core member 21 is short, the number of mounting bodies 10 equipped with the holding portion 17 for holding the core member 21 may be one.

[0036] In the ladder auxiliary tool 1, the connecting shaft 31 is connected to the frame part 12 via the connecting screw 32 at the connecting portion of the abutment part 20. Therefore, by loosening the male thread 32b of the connecting screw 32 from the screw hole 15d of the frame part 12, the orientation of the holding part 17 can be changed together with the connecting shaft 31 and the connecting screw 32. Therefore, the orientation of the core member 21 of the abutment part 20 held by the holding part 17 relative to the clamp part 11 attached to the ladder 100 can be adjusted. In other words, when the mounting body part 10 is attached to the horizontal rail 102, the orientation of the abutment part 20 having the core member 21 can be freely changed to a direction parallel to the horizontal rail 102 shown in Figs. 3 and 5, a direction parallel to the support 101 shown in Fig. 6, or the like.

[0037] In addition, as shown in Figs. 5 and 6, when the ladder 100 equipped with the ladder auxiliary tool 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 abut against the object W. Furthermore, when the abutment portion 20 abuts against the object W, the buffer member 22 that covers the periphery of the core member 21 directly contacts the object W. Since the abutment portion 20 abuts against the object W at the buffer member 22 in this manner, the ladder 100 can be leaned against an indoor wall with wallpaper, for example, without damaging the wall. Furthermore, during work, the buffer member 22 is deformed by the load applied thereto, increasing the contact area with the wall, thereby stabilizing the ladder 100 when leaned against the object W.

[0038] The cushioning member 22 has a slit along its length. The cushioning member 22 can be easily attached to and detached from the core member 21 supported by the holding part 17 by expanding the slit. Therefore, if the cushioning member 22 becomes dirty, it can be easily replaced. When the cushioning member 22 is attached to the core member 21 held by the holding part 17, the connecting part 30 that connects the holding part 17 and the clamp part 11 is attached so as to protrude from the slit. In addition, by forming the cushioning member 22 longer than the core member 21 and attaching it to the core member 21 so as to protrude 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 during the operation of leaning the ladder 100 equipped with the ladder auxiliary tool 1 against the core member 21.

[0039] Next, a ladder auxiliary tool 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 tool 2. Fig. 8 is a perspective view of the mounting body 110 of the ladder auxiliary tool 2. Fig. 9 is a side schematic view explaining the state of using the ladder auxiliary tool 2. In the ladder auxiliary tool 2 according to the second embodiment, the same members as those in the ladder auxiliary tool 1 according to the first embodiment described above are given the same reference numerals, and detailed explanations will be omitted.

[0040] In comparison with the ladder auxiliary tool 1 according to the first embodiment, the ladder auxiliary tool 2 according to the second embodiment has a different shape of the frame part 112 in the mounting body part 110 of the ladder auxiliary tool 2 from the frame part 12 of the ladder auxiliary tool 1. That is, in the ladder auxiliary tool 2, in addition to the inclined surface 15b provided at an angle to the parallel surface 15a of the connecting part 115 in the frame part 112, an inclined surface 15e is further formed. The inclined surface 15e is provided symmetrically with respect to the inclined surface 15b to which the fall-off prevention part 19 is attached, sandwiching the parallel surface 15a therebetween. The inclined surface 15e is a part formed by chamfering the corner where the connecting part 15 and the leg part 14 intersect in a side view, and is inclined at approximately 45 degrees with respect to the parallel surface 15a. The inclined surface 15e is provided with a screw hole 15f capable of receiving the male screw 32b of the connecting screw 32 in the connecting part 30. In the frame portion 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 portion 17 can be changed via the connecting portion 30. In other words, the mounting body portion 110 of the ladder auxiliary tool 2 has a configuration in which one end of the connecting portion 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 Fig. 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 by the connecting portion 30. The core member 21 is slidable in the direction of its central axis relative to the holding portion 17. For these reasons, the orientation and length of the abutting portion 20 relative to the clamping portion 11 can be easily adjusted according to 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 be easily adjusted even for the ladder 100 to which the clamping portion 11 is attached.

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

[0044] In the ladder auxiliary tool 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 mounting provided in the mounting part 19a of the fall prevention part 19. That is, each screw hole is formed with an inner diameter according to the respective screw-engagement object. If the male screws of the different screw-engagement objects are all of 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 bar 102 so that the object W is located below the frame portion 12, from the standpoint of reducing the load on the screw shaft portion 16a of the fastening portion 16 and of stability, it is preferable to attach the connection portion 30 to the inclined surface 15e so that the knob 16b is located above the cross bar 102.

[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 the state where 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, so-called a ladder-cum-stepladder.

[0046] It can be said that the above-mentioned multiple exemplary embodiments have the following configurations. That is, the ladder auxiliary devices 1 and 2 have an attachment main body 10 attached to a ladder 100 that is leaned against an object W, and an abutment part 20 that abuts against the object W when the ladder 100 is leaned against the object W, 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 cushioning 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 into the core member 21.

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

[0049] The above-mentioned embodiment is an example of the present invention, and the ladder aid according to the present invention is not limited to the above-mentioned embodiment. Therefore, even if it is other than the above-mentioned embodiment, various modifications are possible according to the design, etc., as long as they do not deviate from the technical idea of ​​the present invention. In addition, the effects described in this disclosure are merely examples and are not limited, and other effects may be present. [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 Connection screw 33 Retaining part fixing screw 100 ladders 101 Post 102 Crosspiece 110 Mounting body part 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 portion that is detachably attached to the ladder; A holding portion that detachably holds the contact portion; A clamping member is provided between the clamping portion and the holding portion, and the holding portion is rotated relative to the clamping portion. A connection part for movably connecting; Equipped with The contact 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 into the core member. A ladder aid characterized by:

2. The clamp portion has a pair of legs arranged opposite to each other, and base ends of the pair of legs are fixed to each other. a fastening portion having a screw shaft portion that penetrates one of the pair of legs and screws into the connecting portion; With The connecting portion has a parallel surface that is parallel to the axial direction of the screw shaft portion in a side view. A pair of legs is provided on at least one of the legs, the pair of legs being continuous with the parallel plane. and an inclined surface inclined relative to the The connection portion is attached to the parallel surface or the inclined surface.

2. A ladder aid as claimed in claim 1.

Images