Suction pedestal

Abstract

Provide an adsorption pedestal that can be easily removed even when a strong magnet is used. 【Solution means】The adsorption pedestal 11 includes a plate-like member 50 configured to support the object 1 to be supported on one side in the thickness direction, a pair of magnet portions 52 provided on the other side of the plate-like member 50 in the thickness direction, and a pair of support portions 54 provided on the other side of the plate-like member 50 in the thickness direction. In the first direction D1, the pair of magnet portions 52 are provided on one side of the center line Lb, and the pair of support portions 54 are provided on the other side of the center line Lb. The adsorption surface 52a of the magnet portion 52 and the support surface 54a of the support portion 54 are each inclined with respect to the plate-like member 50 such that the distance from the plate-like member 50 in the thickness direction of the plate-like member 50 is closer to the center line La side in the second direction D2.

Description

Technical Field

[0001] The present invention relates to a suction pedestal that adsorbs an object by the magnetic force of a permanent magnet.

Background Art

[0002] In recent years, methods for fixing objects using magnetic force have been utilized in various markets. A familiar example is a storage shelf fixed to the walls of a kitchen or bathroom. Also, when temporarily installing a signboard, exhibit, electronic device, etc. on an iron wall surface, a fixing method using magnetic force is utilized.

[0003] As a method for fixing an object using magnetic force, for example, it is conceivable to utilize the technique disclosed in Patent Document 1. In the attachment structure of the instrument disclosed in Patent Document 1, a magnet is embedded in the central part of a support part attached to an attachment surface, and an adsorption part is formed by an elastic body capable of increasing the surface friction coefficient on the back surface side (the side attached to the attachment surface) of the support part. Patent Document 1 describes that with such a configuration, the instrument can be firmly attached to the attachment surface and the removal of the instrument becomes easy.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] When fixing a heavy instrument to an attachment surface (wall surface) using the attachment structure disclosed in Patent Document 1, it is conceivable to embed a strong magnet in the support part. However, in the configuration where a magnet is provided in the central part of the support part as in Patent Document 1, when a strong magnet is used, due to its magnetic force, the support part cannot be easily removed from the attachment surface.

[0006] Therefore, an object of the present invention is to provide an adsorption pedestal that can be easily removed even when a strong magnet is used.

Means for Solving the Problems

[0007] The adsorption pedestal according to one aspect of the present invention is an adsorption pedestal that can be attached to a curved surface whose cross-section is curved in an arc shape, a plate-like member configured to hold an object on one side in the thickness direction, a pair of magnet parts provided on the other side of the plate-like member in the thickness direction, and a pair of support parts provided on the other side of the plate-like member in the thickness direction, and the pair of support parts is made of a magnetic material or a non-magnetic material excluding a permanent magnet, in a first direction orthogonal to the thickness direction, the pair of magnet parts is provided on one side of a first center line of the plate-like member extending in a second direction orthogonal to the thickness direction and the first direction, and the pair of support parts is provided on the other side of the first center line, in the second direction, one of the magnet parts and one of the support parts are provided on one side of a second center line of the plate-like member extending in the first direction, and the other magnet part and the other support part are provided on the other side of the second center line, each of the pair of magnet parts has an adsorption surface facing the curved surface when the adsorption pedestal is attached to the curved surface, each of the pair of support parts has a support surface facing the curved surface when the adsorption pedestal is attached to the curved surface, the adsorption surface and the support surface are each inclined with respect to the plate-like member such that the distance from the plate-like member in the thickness direction is closer or farther toward the first center line side in the first direction, or the distance from the plate-like member in the thickness direction is closer or farther toward the second center line side in the second direction, which is characterized in that.

Effects of the Invention

[0008] According to the present invention, an adsorption pedestal that can be easily removed even when a strong magnet is used can be obtained.

Brief Description of the Drawings

[0009]

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DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, an adsorption pedestal according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing a usage example of an adsorption pedestal according to an embodiment of the present invention. In FIG. 1, a first direction D1, a second direction D2, and a third direction D3 that are orthogonal to each other are shown. In each of the drawings described later, the first direction D1, the second direction D2, and the third direction D3 are appropriately shown. In the present embodiment, the first direction D1 corresponds to the vertical direction when the adsorption pedestal 11 is used.

[0011] As shown in FIG. 1, the adsorption pedestal 11 according to the present embodiment can be used to attach the support object 1 to the iron pillar 2. In FIG. 1, only a part of the iron pillar 2 is shown, but the iron pillar 2 has a cylindrical shape and has a surface 2a that curves in an arc shape in a cross section orthogonal to the first direction D1. The support object 1 may be, for example, an electronic device such as a communication device and a photographing device, or a posted object such as a signboard and a guide board.

[0012] In this embodiment, the object 1 to be supported is fixed to a plate-like member 50 (described later) of the suction pedestal 11, so that the object 1 to be supported is supported by the suction pedestal 11. In this embodiment, the suction pedestal 11 that supports the object 1 to be supported can be attracted to the surface 2a of the iron pillar 2 by the magnetic force of a pair of magnet portions 52 (see FIG. 3) described later. Thereby, the object 1 to be supported is attached to the iron pillar 2 via the suction pedestal 11. Hereinafter, the configuration of the suction pedestal 11 will be described in detail.

[0013] FIG. 2 is a front view of the suction pedestal 11, FIG. 3 is a rear view of the suction pedestal 11, FIG. 4 is a plan view of the suction pedestal 11, FIG. 5 is a bottom view of the suction pedestal 11, and FIG. 6 is an exploded perspective view of the suction pedestal 11.

[0014] As shown in FIGS. 2 to 6, the suction pedestal 11 includes a plate-like member 50, a pair of magnet portions 52, a pair of support portions 54, a pair of gripping portions 56, a pair of sheets 58, a pair of sheets 60, and a cover plate 62. As shown in FIG. 6, each magnet portion 52 has a plurality of magnets 64 and a yoke 66.

[0015] In this embodiment, the third direction D3 coincides with the thickness direction of the plate-like member 50. FIGS. 2 and 3 show a virtual straight line La extending in the second direction D2 through the center of the plate-like member 50 in the first direction D1, and a virtual straight line Lb extending in the first direction D1 through the center of the plate-like member 50 in the second direction D2. Hereinafter, the straight lines La and Lb are respectively referred to as the center lines La and Lb of the plate-like member 50. In this embodiment, the center line La corresponds to the first center line, and the center line Lb corresponds to the second center line. In FIGS. 4 and 5, the position of the surface 2a of the iron pillar 2 when the suction pedestal 11 is fixed to the iron pillar 2 is indicated by a dashed line.

[0016] As shown in FIG. 1, the plate-like member 50 is configured to support the object 1 to be supported on one side (the surface 50a side) in the thickness direction (the third direction D3). Hereinafter, one surface 50a in the thickness direction of the plate-like member 50 will be referred to as the front surface 50a, and the other surface 50b in the thickness direction of the plate-like member 50 will be referred to as the back surface 50b.

[0017] As shown in FIGS. 2, 3, and 6, in the present embodiment, a plurality (six in the present embodiment) of through holes 50c are formed in the central portion of the plate-like member 50 in the second direction D2. In the present embodiment, for example, a fastening member (such as a bolt) (not shown) is inserted into the through hole 50c from the back surface 50b side and tightened to the support object 1 provided on the front surface 50a side of the plate-like member 50, whereby the support object 1 can be attached to the plate-like member 50. That is, in the present embodiment, the plurality of through holes 50c function as an attachment portion for attaching the support object 1 to the plate-like member 50.

[0018] As shown in FIGS. 4 to 6, in the present embodiment, in order to improve the rigidity of the plate-like member 50, both edge portions of the plate-like member 50 in the second direction D2 are bent so as to be bent in an L shape when viewed from the first direction D1. The plate-like member 50 is made of, for example, stainless steel. In this case, the weather resistance and water resistance of the adsorption pedestal 11 can be improved.

[0019] As shown in FIGS. 3 to 6, the pair of magnet portions 52 and the pair of support portions 54 are provided on the other side (back surface 50b side) in the thickness direction of the plate-like member 50. In the present embodiment, each magnet portion 52 includes 12 magnets 64. As shown in FIG. 3, in the first direction D1, the pair of magnet portions 52 are provided on one side (upper side) of the center line La of the plate-like member 50, and the pair of support portions 54 are provided on the other side (lower side) of the center line La of the plate-like member 50. Each support portion 54 is made of a magnetic material or a non-magnetic material excluding a permanent magnet. The support portion 54 is made of, for example, aluminum or stainless steel.

[0020] The plurality of magnets 64 each have magnetic pole faces on one side and the other side in the third direction D3 (the thickness direction of the plate-like member 50). As shown in FIG. 3, in the present embodiment, the plurality of magnets 64 are arranged such that the magnetic pole faces of adjacent magnets 64 are opposite poles to each other. In the present embodiment, in each magnet portion 52, an adsorption surface 52a that adsorbs to the surface 2a of the iron column 2 when the adsorption pedestal 11 is attached to the iron column 2 is configured by the magnetic pole faces of the plurality of magnets 64.

[0021] As shown in FIG. 3, in the present embodiment, the pair of magnet portions 52 are arranged on one side and the other side of the center line Lb in the second direction D2 so as to be line-symmetric with the center line Lb as the target axis. Similarly, the pair of support portions 54 are also arranged on one side and the other side of the center line Lb in the second direction D2 so as to be line-symmetric with the center line Lb as the target axis.

[0022] Note that the arrangement of the pair of magnet portions 52 being line-symmetric with the center line Lb as the target axis defines the symmetry of the positions of the magnet portions and does not require the symmetry of the arrangement of the magnetic poles of the plurality of magnets. Therefore, as shown in FIG. 3, the arrangement of the magnetic poles of the plurality of magnets 64 in one magnet portion 52 and the arrangement of the magnetic poles of the plurality of magnets 64 in the other magnet portion 52 do not have to be line-symmetric with the center line Lb as the target axis.

[0023] As the plurality of magnets 64 of the magnet portion 52, for example, magnets having the same (identical in design) dimensions and performance (adsorption force) are used. As the magnet 64, for example, rare earth magnets are used. Specifically, as the magnet 64, for example, neodymium magnets are used.

[0024] As shown in FIGS. 4 and 6, in each magnet portion 52, a yoke 66 is provided to support the plurality of magnets 64. The yoke 66 is made of a magnetic material such as iron. The yoke 66 is fixed to the plate-like member 50 by a fastening member such as a bolt.

[0025] In the present embodiment, all the magnets 64 constituting the pair of magnet portions 52 are provided on one side of the center line La in the first direction D1. More specifically, the entire pair of magnet portions 52 is provided on one side (in the present embodiment, the upper side) of the center line La in the first direction D1. That is, in the present embodiment, all the magnets 64 and yokes 66 constituting the pair of magnet portions 52 are provided on one side of the center line La in the first direction D1. Further, in the present embodiment, the entire pair of support portions 54 is provided on the other side (in the present embodiment, the lower side) of the center line La in the first direction D1.

[0026] Each yoke 66 has a fixing surface 66a to which a plurality of magnets 64 of the magnet portion 52 are fixed. The dimension of the yoke 66 in the third direction D3 is smaller toward the center line Lb (see FIG. 3) side in the second direction D2. As a result, as shown in FIG. 4, the fixing surface 66a is inclined with respect to the plate-like member 50 such that the distance from the plate-like member 50 in the third direction D3 becomes closer toward the center line Lb side in the second direction D2. For this reason, when using the prismatic magnet 64, the magnetic pole surface of each magnet 64 can be inclined with respect to the plate-like member 50 in the same manner as the fixing surface 66a of the yoke 66. In this case, when the adsorption pedestal 11 is adsorbed to the iron pillar 2, even if the surface 2a of the iron pillar 2 is curved in an arc shape, it is possible to suppress an increase in the gap between the surface 2a and the magnet 64. As a result, the pair of magnet portions 52 can be adsorbed to the iron pillar 2 with sufficient force.

[0027] As shown in FIG. 5, each support portion 54 has a support surface 54a facing the side opposite to the plate-like member 50 in the third direction D3. Similar to the fixing surface 66a of the yoke 66, the support surface 54a is inclined with respect to the plate-like member 50 such that the distance from the plate-like member 50 in the third direction D3 becomes closer toward the center line Lb (see FIG. 3) side in the second direction D2. In this case, when the adsorption pedestal 11 is adsorbed to the iron pillar 2, even if the surface 2a of the iron pillar 2 is curved in an arc shape, it is possible to suppress an increase in the gap between the surface 2a and the support portion 54. As a result, the pair of support portions 54 can be appropriately brought into contact with the iron pillar 2.

[0028] As shown in FIGS. 3, 4, and 6, a pair of sheets 58 are provided so as to cover a pair of magnet portions 52. As shown in FIGS. 4 and 6, in the present embodiment, the sheet 58 is provided so as to cover a plurality of magnets 64 and yokes 66. Further, as shown in FIGS. 5 and 6, a pair of sheets 60 are provided so as to cover a pair of support portions 54. In the present embodiment, the sheets 58 and 60 are made of silicon rubber.

[0029] As shown in FIGS. 3 to 6, the outer peripheral portions of each sheet 58 and the outer peripheral portions of each sheet 60 are fixed to the plate-like member 50 and the cover plate 62 while being sandwiched between the plate-like member 50 and the cover plate 62. As shown in FIGS. 3 and 6, in the present embodiment, in the cover plate 62, a pair of rectangular through-holes 62a are formed above the center line La, and a pair of rectangular through-holes 62b are formed below the center line La. Further, a plurality of circular through-holes 62c are formed in the central portion of the cover plate 62 in the second direction D2. In the present embodiment, the portion of the magnet portion 52 that covers the magnet portion 52 among the magnet portion 52 and the sheet 58, and the portion of the support portion 54 that covers the support portion 54 among the support portion 54 and the sheet 60 are fitted into the through-holes 62a and 62b, respectively, and the outer peripheral portions of the sheets 58 and 60 are fixed to the plate-like member 50 and the cover plate 62 by a plurality of bolts 68 (see FIG. 3). The plurality of through-holes 62c are formed at positions facing the plurality of through-holes 50c of the plate-like member 50. The plurality of through-holes 62c are holes for passing fastening members such as bolts used when attaching the object to be supported 1 (see FIG. 1) to the plate-like member 50.

[0030] As shown in FIGS. 1, 2, and 6, in this embodiment, the gripping portion 56 is a handle. The pair of gripping portions 56 are detachably attached to the plate-like member 50. In this embodiment, each gripping portion 56 can be attached to the plate-like member 50 by fitting and hooking both ends thereof into through holes 50d formed in the plate-like member 50. At least a part of each gripping portion 56 is provided on the other side (lower side) than the center of the plate-like member 50 in the first direction D1. In this embodiment, the entire gripping portion 56 is provided on the other side (lower side) than the center of the plate-like member 50 in the first direction D1. In this embodiment, the gripping portion 56 corresponds to the tension portion.

[0031] In this embodiment, the gripping portion 56 is formed of, for example, aluminum. It is preferable to perform anodizing treatment on the surface of the gripping portion 56. In this case, it is possible to suppress the occurrence of electrolytic corrosion between the gripping portion 56 and the plate-like member 50.

[0032] (Function and effect) In this embodiment, the adsorption pedestal 11 can be adsorbed to the surface 2a of the iron pillar 2 by the magnetic force of the pair of magnet parts 52. Here, in this embodiment, the pair of support parts 54 is made of a magnetic material or a non-magnetic material excluding a permanent magnet. Therefore, when the adsorption pedestal 11 is adsorbed to the surface 2a of the iron pillar 2, it is possible to prevent the pair of support parts 54 from being adsorbed to the surface 2a of the iron pillar 2 with a large force. Further, in this embodiment, in the first direction D1, the pair of magnet parts 52 is provided on one side (upper side) of the center line La of the plate-like member 50, and the pair of support parts 54 is provided on the other side (lower side) of the center line La of the plate-like member 50. With such a configuration, when removing the adsorption pedestal 11 from the iron pillar 2 (adsorption object), the operator can easily separate the pair of support parts 54 from the iron pillar 2 by pulling the lower part of the plate-like member 50 in a direction away from the iron pillar 2. Further, after separating the pair of support parts 54 from the iron pillar 2, the pair of magnet parts 52 can be easily separated from the iron pillar 2 by the principle of a lever. Therefore, in this embodiment, even when the adsorption force of the pair of magnet parts 52 is made sufficiently large, the adsorption pedestal 11 can be easily removed from the iron pillar 2 without using a special operation jig. That is, even when a strong magnet is used as the magnet for adsorbing the adsorption pedestal 11 to the iron pillar 2, the adsorption pedestal 11 can be easily removed from the iron pillar 2.

[0033] Note that, in this embodiment, at least a part of the gripping part 56 is provided on the other side (lower side) of the center of the plate-like member 50 in the first direction D1. Thereby, the operator can easily pull the lower part of the plate-like member 50 in a direction away from the iron pillar 2 by holding the gripping part 56. As a result, the removal of the adsorption pedestal 11 from the iron pillar 2 becomes even easier.

[0034] When attaching the suction pedestal 11 to the iron pillar 2, for example, the pair of magnet portions 52 are brought into contact with the iron pillar 2 before the pair of support portions 54. Thereafter, with the pair of magnet portions 52 as fulcrums, the lower side of the suction pedestal 11 is moved toward the iron pillar 2 side, and the pair of support portions 54 may be brought into contact with the iron pillar 2. Therefore, when attaching the suction pedestal 11 to the iron pillar 2, there is no need to use a special operation jig. Thus, the suction pedestal 11 according to the present embodiment can be easily attached to and detached from the object to be sucked (in this embodiment, the iron pillar 2) with a simple configuration.

[0035] Further, in the present embodiment, one of the pair of magnet portions 52 of the pair of magnet portions 52 is provided on one side of the center line Lb in the second direction D2, and the other magnet portion 52 is provided on the other side of the center line Lb in the second direction D2. Similarly, one of the pair of support portions 54 of the pair of support portions 54 is provided on one side of the center line Lb in the second direction D2, and the other support portion 54 is provided on the other side of the center line Lb in the second direction D2. With such a configuration, the plate-like member 50 can be stably fixed to the iron pillar 2. In particular, in the present embodiment, the pair of magnet portions 52 and the pair of support portions 54 are each arranged to be line-symmetrical with the center line Lb as the target axis. Thereby, the plate-like member 50 can be more stably fixed to the iron pillar 2.

[0036] Further, in the present embodiment, the suction surfaces 52a of the respective magnet portions 52 and the support surfaces 54a of the respective support portions 54 are each inclined with respect to the plate-like member 50 such that the distance from the plate-like member 50 in the thickness direction of the plate-like member 50 is closer to the center line Lb side in the second direction D2. In this case, when the suction pedestal 11 is sucked to the iron pillar 2, even if the surface 2a of the iron pillar 2 is curved in an arc shape, it is possible to suppress an increase in the gap between the surface 2a and the magnet portion 52 and the gap between the surface 2a and the support portion 54. As a result, the suction pedestal 11 can be appropriately fixed to the iron pillar 2.

[0037] In the present embodiment, in each magnet portion 52, a plurality of magnets 64 are arranged such that the magnetic pole surfaces of adjacent magnets 64 are opposite poles to each other. In this case, since magnetic flux can flow efficiently between adjacent magnets 64, sufficient adsorption force can be exerted even when there is a magnetic gap such as paint or rubber between the object to be adsorbed (iron column 2) and the magnet portion 52.

[0038] Also, in the present embodiment, the magnet portion 52 and the support portion 54 are covered with sheets 58 and 60 made of silicone rubber. Thereby, the weather resistance and water resistance of the adsorption pedestal 11 (magnet portion 52 and support portion 54) can be improved. Furthermore, in the present embodiment, the vertical load-bearing capacity is improved by utilizing the frictional force generated between the iron column 2 and the silicone rubber (sheets 58, 60).

[0039] Also, in the present embodiment, a cover plate 62 is provided on the back surface 50b side of the plate-like member 50. Thereby, the rigidity of the entire adsorption pedestal 11 can be improved.

[0040] (Modification example) In the above-described embodiment, for the sake of easy attachment of the adsorption pedestal 11 to the iron column 2 on the vertically extending cylinder, the adsorption surface 52a of each magnet portion 52 and the support surface 54a of each support portion 54 are each inclined with respect to the plate-like member 50 such that the distance from the plate-like member 50 in the thickness direction of the plate-like member 50 is closer to the center line Lb side in the second direction D2. However, the inclination direction of the adsorption surface 52a and the support surface 54a is not limited to the above example. FIG. 7 is a schematic side view showing another example of the adsorption pedestal 11. As shown in FIG. 7, in the adsorption pedestal 11 according to the present embodiment, the adsorption surface 52a of each magnet portion 52 and the support surface 54a of each support portion 54 are each inclined with respect to the plate-like member 50 such that the distance from the plate-like member 50 in the thickness direction of the plate-like member 50 is closer to the center line La (see FIG. 3) side in the first direction D1. In this case, it becomes possible to attach the adsorption pedestal 11 to the iron column 2 on the horizontally extending cylinder.

[0041] In the adsorption pedestal 11 shown in FIG. 7, the dimension of the yoke 66 in the third direction D3 is smaller toward the center line La (see FIG. 3) side in the first direction D1. As a result, the fixing surface 66a of the yoke 66 is inclined with respect to the plate-like member 50 such that the distance from the plate-like member 50 in the third direction D3 becomes closer toward the center line La side in the first direction D1. For this reason, when using the prism-shaped magnet 64, the magnetic pole surface of each magnet 64 can be inclined with respect to the plate-like member 50 in the same manner as the fixing surface 66a of the yoke 66.

[0042] In the above-described embodiment, the case where the adsorption pedestal 11 is attached to the iron pillar 2 has been described. However, the object to which the adsorption pedestal is attached is not limited to an iron (steel) member having a convexly curved surface in cross section, and the adsorption pedestal may be attached to an iron (steel) member having a concavely curved surface in cross section. For example, as shown in FIGS. 8 and 9, the adsorption pedestal 11 may be configured so as to be attachable to an iron member 3 having a concavely curved surface 3a in cross section. This will be briefly described below.

[0043] FIG. 8 is a view showing an adsorption pedestal according to a modified example. In FIG. 8, (a) is a plan view of the adsorption pedestal according to the modified example, and (b) is a bottom view of the adsorption pedestal according to the modified example. The adsorption pedestal 11 shown in FIG. 8 is different from the adsorption pedestal 11 shown in FIGS. 4 and 5 in that the adsorption surface 52a of each magnet portion 52 and the support surface 54a of each support portion 54 are each inclined with respect to the plate-like member 50 such that the distance from the plate-like member 50 in the thickness direction of the plate-like member 50 becomes farther toward the center line Lb (see FIG. 3) side in the second direction D2. In the present embodiment, the fixing surface 66a of the yoke 66 is inclined with respect to the plate-like member 50 such that the distance from the plate-like member 50 in the third direction D3 becomes farther toward the center line Lb side in the second direction D2. According to the adsorption pedestal 11 according to the present embodiment, when attaching the adsorption pedestal 11 to an iron member 3 having a vertically extending and concavely curved surface 3a, it is possible to suppress an increase in the gap between the adsorption surface 52a of each magnet portion 52 and the surface 3a and the gap between the support surface 54a of each support portion 54 and the surface 3a. Thereby, the adsorption pedestal 11 can be appropriately attached to the iron member 3.

[0044] FIG. 9 is a side view showing the suction pedestal according to the modified example. The suction pedestal 11 shown in FIG. 9 is different from the suction pedestal 11 shown in FIG. 7 in that the suction surface 52a of each magnet portion 52 and the support surface 54a of each support portion 54 are each inclined with respect to the plate-like member 50 such that the distance from the plate-like member 50 in the thickness direction of the plate-like member 50 becomes farther toward the center line La (see FIG. 3) side in the first direction D1. In the present embodiment, the fixing surface 66a of the yoke 66 is inclined with respect to the plate-like member 50 such that the distance from the plate-like member 50 in the third direction D3 becomes farther toward the center line La side in the first direction D1. According to the suction pedestal 11 according to the present embodiment, when the suction pedestal 11 is attached to the iron member 3 having the curved surface 3a that extends in the horizontal direction and is curved in a concave shape, it is possible to suppress an increase in the gap between the suction surface 52a of each magnet portion 52 and the curved surface 3a and the gap between the support surface 54a of each support portion 54 and the curved surface 3a. Thereby, the suction pedestal 11 can be appropriately attached to the iron member 3.

[0045] In the above-described embodiment, the case where the yoke 66 is fixed to the plate-like member 50 and a plurality of magnets 64 are fixed to the yoke 66 has been described. However, a plurality of magnets 64 may be fixed to the plate-like member 50 and the yoke 66 may be fixed to the plurality of magnets 64 so that the positional relationship between the yoke 66 and the plurality of magnets 64 in the third direction D3 is reversed. In this case, one surface in the thickness direction of the yoke 66 can be used as the suction surface 52a of the magnet portion 52.

[0046] In the above-described embodiment, the case where the fixing surface 66a of the yoke 66 (see FIGS. 4 or 7) is inclined with respect to the plate-like member 50 has been described. However, the thickness of the yoke 66 may be uniform. Further, without providing the yoke 66, a plurality of magnets 64 may be directly fixed to the plate-like member 50. In these cases, by inclining one magnetic pole surface (the magnetic pole surface on the side of the iron column 2) of each magnet 64 with respect to the other magnetic pole surface, the adsorption surface 52a of the magnet portion 52 may be inclined with respect to the plate-like member 50. For example, in the adsorption pedestal 11 shown in FIG. 4, without providing the yoke 66, the dimension of the plurality of magnets 64 in the third direction D3 may be made smaller toward the center line Lb side in the second direction D2. In the adsorption pedestal 11 shown in FIG. 7, without providing the yoke 66, the dimension of the plurality of magnets 64 in the third direction D3 may be made smaller toward the center line La side in the first direction D1.

[0047] In the above-described embodiment, the case where the magnet portion 52 includes a plurality of magnets 64 has been described. However, the magnet included in the magnet portion 52 may be one. Further, in the above-described embodiment, the case where the magnet portion 52 and the support portion 54 are covered with the sheets 58 and 60 has been described. However, the sheets 58 and 60 may not be provided. Further, the cover plate 62 may not be provided.

[0048] In the above-described embodiment, the case where the inclination of the adsorption surface 52a of the magnet portion 52 and the support surface 54a of the support portion 54 with respect to the plate-like member 50 is fixed has been described. However, the adsorption pedestal 11 may be configured such that the inclination of the adsorption surface 52a and the support surface 54a with respect to the plate-like member 50 can be changed. Hereinafter, a configuration for changing the inclination of the adsorption surface 52a and the support surface 54a will be briefly described.

[0049] Figures 10 to 12 are schematic views showing a suction pedestal according to a modified example. For example, as shown in FIG. 10, each magnet portion 52 may be supported by a plate-like member 50 so as to be swingable around a swing shaft 34 extending in the first direction D1. Although not shown, each support portion 54 may also be supported by the plate-like member 50 so as to be swingable around a swing shaft extending in the first direction D1. In this case, for example, both edge portions of the plate-like member 50 in the first direction D1 may be bent, and the swing shaft 34 may be supported at the bent portions. Further, the magnet portion 52 and the support portion 54 may be attached to the swing shaft 34 so as to be swingable around the swing shaft 34. For example, through holes penetrating in the first direction D1 may be formed in the yoke 66 and the support portion 54, and the swing shaft 34 may be passed through the through holes. Although not shown, each magnet portion 52 may be supported by the plate-like member 50 so as to be swingable around a swing shaft extending in the second direction D2. Although not shown, each support portion 54 may also be supported by the plate-like member 50 so as to be swingable around a swing shaft extending in the second direction D2.

[0050] Further, for example, as shown in FIG. 11, each magnet portion 52 may be supported by a plate-like member 50 so as to be swingable via a plurality of elastic members 36. In this case, by deforming the plurality of elastic members 36, the inclination of the adsorption surface 52a of each magnet portion 52 with respect to the plate-like member 50 can be changed according to the shape of the surface of the adsorption object (for example, the iron column 2). Although not shown, each support portion 54 may be supported by the plate-like member 50 so as to be swingable via a plurality of elastic members.

[0051] Further, for example, as shown in FIG. 12, plate-like members 13a and 13b may be further provided on both sides of the plate-like member 50 in the second direction D2. In the present embodiment, the plate-like members 13a and 13b are connected to the plate-like member 50 so as to be swingable about swing shafts 15a and 15b extending in the first direction D1 as swing centers. Further, in the present embodiment, the support object 1 is fixed to the plate-like member 50 so as to be positioned on one side in the thickness direction of the plate-like member 50, and magnet portions 52 are respectively fixed to the plate-like members 13a and 13b so as to be positioned on the other side in the thickness direction of the plate-like member 50. Although not shown, support portions 54 are respectively fixed to the plate-like members 13a and 13b so as to be positioned on the other side in the thickness direction of the plate-like member 50. In the present embodiment, when the plate-like members 13a and 13b swing with respect to the plate-like member 50, the inclination of the adsorption surface 52a of each magnet portion 52 with respect to the plate-like member 50 can be changed according to the shape of the surface of the adsorption object (for example, the iron column 2). Note that the plate-like members 13a and 13b may be provided swingably on both sides of the plate-like member 50 in the first direction D1, a pair of magnet portions 52 may be provided on the plate-like member 13a, and a pair of support portions 54 may be provided on the plate-like member 13b.

[0052] In the above-described embodiment, the case where the magnet portions 52 are provided on one side and the other side of the center line Lb in the second direction D2 has been described, but another magnet portion may be further provided on the center line Lb. Similarly, another support portion may be further provided on the center line Lb.

[0053] In the above-described embodiment, the case where the gripping portion 56 (in the present embodiment, the handle) is provided as the pulling portion has been described, but the pulling portion may be configured such that an operator can pull the plate-like member 50 in one side (the direction away from the iron column 2) in the third direction D3. More specifically, for example, the pulling portion may be configured such that an operator can hook a finger, and may be a hole (a hole for hooking a finger) formed in the plate-like member 50. Further, in the above-described embodiment, the case where a pair of gripping portions 56 are provided on the plate-like member 50 has been described, but the number of the pulling portions (gripping portions) may be one or three or more.

[0054] In the above-described embodiment, the case where the object 1 to be supported is fixed to the plate-like member 50 has been described. However, the object 1 to be supported does not necessarily have to be directly fixed to the plate-like member 50. For example, the object 1 to be supported may be fixed to a member different from the plate-like member 50 (hereinafter referred to as a fixing member), and the plate-like member 50 may support the fixing member so as to be swingable. In this case, the position of the object 1 to be supported with respect to the plate-like member 50 can be adjusted by making it possible to fix the position of the fixing member with respect to the plate-like member 50 at a desired position.

[0055] The object to which the suction base 11 is suctioned is not limited to the iron column 2, and the suction base 11 may be suctioned with a wall or the like made of a magnetic material such as steel as the object to be suctioned.

[0056] (Reference Example) Hereinafter, the suction base according to the reference example will be described with reference to the drawings. FIG. 13 is a perspective view showing a usage example of the suction base according to the reference example. Also in this reference example, the first direction D1 corresponds to the vertical direction when the suction base 10 is used.

[0057] As shown in FIG. 13, the suction base 10 according to this reference example can also be used to attach the object 1 to be supported to the iron column 2 in the same manner as the above-described suction base 11. In this reference example, the object 1 to be supported is fixed to a plate-like member 12 (described later) of the suction base 10, whereby the object 1 to be supported is supported by the suction base 10. In this reference example, the suction base 10 that supports the object 1 to be supported can be suctioned to the surface 2a of the iron column 2 by the magnetic force of a pair of magnet groups 14 (see FIG. 15) and a pair of magnets 16 (see FIG. 15) described later. Thereby, the object 1 to be supported is attached to the iron column 2 via the suction base 10. Hereinafter, the configuration of the suction base 10 will be described in detail.

[0058] FIG. 14 is a front view of the suction pedestal 10, FIG. 15 is a rear view of the suction pedestal 10, FIG. 16 is a plan view of the suction pedestal 10, and FIG. 17 is a bottom view of the suction pedestal 10. As shown in FIGS. 14 to 17, the suction pedestal 10 includes a plate-like member 12, a pair of magnet groups 14, a pair of magnets 16, and a pair of gripping portions 18. In this reference example, the third direction D3 coincides with the thickness direction of the plate-like member 12. FIGS. 14 and 15 show a virtual straight line L1 extending in the first direction D1 through the center of the plate-like member 12 in the second direction D2, and a virtual straight line L2 extending in the second direction D2 through the center of the plate-like member 12 in the first direction D1. Hereinafter, the straight lines L1 and L2 are respectively referred to as the center lines L1 and L2 of the plate-like member 12. In FIGS. 16 and 17, the position of the surface 2a of the iron pillar 2 when the suction pedestal 10 is fixed to the iron pillar 2 is indicated by a dashed line.

[0059] As shown in FIG. 13, the plate-like member 12 is configured to support the support object 1 on one side (surface 12a side) in the thickness direction (third direction D3). As shown in FIGS. 14 and 15, in this reference example, a plurality (six in this reference example) of through holes 12c are formed in the central portion of the plate-like member 12 in the second direction D2. In this reference example, for example, a fastening member (such as a bolt) (not shown) is inserted into the through hole 12c and tightened to the support object 1 provided on the surface 12a side of the plate-like member 12 (see FIG. 13), whereby the support object 1 can be attached to the plate-like member 12. That is, in this reference example, the plurality of through holes 12c function as attachment portions for attaching the support object 1 to the plate-like member 12.

[0060] As shown in FIGS. 16 and 17, in this reference example, in order to improve the rigidity of the plate-like member 12, both edge portions of the plate-like member 12 in the second direction D2 are bent so as to be L-shaped when viewed from the first direction D1. The plate-like member 12 is made of, for example, stainless steel. In this case, the weather resistance and water resistance of the suction pedestal 10 can be improved.

[0061] As shown in FIGS. 14 to 17, a pair of magnet groups 14 and a pair of magnets 16 are provided on the other side (surface 12b side) in the thickness direction (third direction D3) of the plate-like member 12. In the first direction D1, the pair of magnet groups 14 are provided on one side (upper side) of the center of the plate-like member 12, and the pair of magnets 16 are provided on the other side (lower side) of the center of the plate-like member 12. Each magnet group 14 includes a plurality (10 in this reference example) of magnets 40.

[0062] Each of the plurality of magnets 40 in each magnet group 14 has magnetic pole faces on one side and the other side in the third direction D3 (thickness direction of the plate-like member 12), respectively. The same applies to each magnet 16. As shown in FIG. 15, in this reference example, the plurality of magnets 40 in each magnet group 14 are arranged such that the magnetic pole faces of adjacent magnets 40 are opposite poles to each other.

[0063] In this reference example, the pair of magnet groups 14 are arranged on one side and the other side of the center line L1 in the second direction D2 so as to be line-symmetrical with the center line L1 as the target axis. Similarly, the pair of magnets 16 are arranged on one side and the other side of the center line L1 in the second direction D2 so as to be line-symmetrical with the center line L1 as the target axis.

[0064] Note that the arrangement of the pair of magnet groups 14 to be line-symmetrical with the center line L1 as the target axis defines the symmetry of the positions of the plurality of magnets, and does not require the symmetry of the arrangement of the magnetic poles of the plurality of magnets. Therefore, as shown in FIG. 15, the arrangement of the magnetic poles of the plurality of magnets 40 in one magnet group 14 and the arrangement of the magnetic poles of the plurality of magnets 40 in the other magnet group 14 do not have to be line-symmetrical with the center line L1 as the target axis. The same applies to the pair of magnets 16.

[0065] In this reference example, the first magnet portion 4 is constituted by a pair of magnet groups 14, and the second magnet portion 6 is constituted by a pair of magnets 16. In this reference example, the first magnet portion is constituted by all the magnets provided on one side (the upper side in this reference example) of the center of the plate-like member in the first direction and on the other side (the side opposite to the object to be supported) in the thickness direction of the plate-like member. Also, the second magnet portion is constituted by all the magnets provided on the other side (the lower side in this reference example) of the center of the plate-like member in the first direction and on the other side (the side opposite to the object to be supported) in the thickness direction of the plate-like member. When a magnet is provided on the center line (center line L2 in this reference example) of the plate-like member in the first direction as viewed from the thickness direction of the plate-like member, that magnet is not included in either the first magnet portion or the second magnet portion. In this reference example, the attracting force of the first magnet portion 4 is greater than the attracting force of the second magnet portion 6. Note that the attracting force of the first magnet portion 4 means the total attracting force of all the magnets 40 constituting the first magnet portion 4, and the attracting force of the second magnet portion 6 means the total attracting force of all the magnets 16 constituting the second magnet portion 6. FIG. 18 is a diagram for explaining a method of measuring the attracting force of a magnet.

[0066] As shown in FIG. 18, when measuring the attracting force of the magnet 40 (magnet 16), on a table 100 made of a non-magnetic material (for example, brass), the magnet 40 (magnet 16) is fixed by a pair of fixtures 102 made of a non-magnetic material (for example, brass). In this state, an attracting plate 104 made of a magnetic material (for example, SPCC) is attracted to the magnetic pole surface of the magnet 40 (magnet 16) (the magnetic pole surface that becomes the attracting object side when using the attracting pedestal 10). Also, the attracting plate 104 and the force gauge 200 are connected by a wire 106. The force gauge 200 is set to the peak hold mode, and the force gauge 200 is raised by an elevator (not shown), and the load when the attracting plate 104 separates from the magnet 40 (magnet 16) is measured as the attracting force of the magnet 40 (magnet 16). To suppress measurement variations, one magnet 40 (magnet 16) is measured 5 times, and the average value is taken as the attracting force of that magnet 40 (magnet 16). In this way, the attracting forces of a plurality of magnets 40 (magnets 16) are measured, and by summing them up, the attracting force of the first magnet portion 4 (second magnet portion 6) is calculated.

[0067] The attracting force of the first magnet portion 4 is preferably set to be 2 times or more, more preferably 4 times or more, and even more preferably 6 times or more, 8 times or more, 10 times or more the attracting force of the second magnet portion 6.

[0068] In this reference example, as the magnets 16 and 40, for example, magnets having the same (identical in design) dimensions and performance (attracting force) are used. As the magnets 16 and 40, for example, neodymium magnets are used.

[0069] As shown in FIG. 16, between the pair of magnet groups 14 and the plate-like member 12, a pair of yokes 20 for supporting the pair of magnet groups 14 are provided. The yokes 20 are made of a magnetic material such as iron. The pair of yokes 20 are fixed to the plate-like member 12 by fastening members such as bolts.

[0070] Each yoke 20 has a fixing surface 20a to which a plurality of magnets 40 of the magnet group 14 are fixed. The fixing surface 20a is inclined with respect to the plate-like member 12 such that the distance from the plate-like member 12 in the third direction D3 is closer toward the center line L1 (see FIG. 15) side in the second direction D2. For this reason, when using a prism-shaped magnet 40, the magnetic pole surface of each magnet 40 can be inclined with respect to the plate-like member 12 in the same manner as the fixing surface 20a of the yoke 20. In this case, when the suction pedestal 10 is adsorbed to the iron column 2, even if the surface 2a of the iron column 2 is curved in an arc shape, it is possible to suppress an increase in the gap between the surface 2a and the magnet 40. As a result, the first magnet portion 4 can be adsorbed to the iron column 2 with sufficient force.

[0071] As shown in FIG. 17, similarly, between the pair of magnets 16 and the plate-like member 12, a pair of yokes 22 that support the pair of magnets 16 are provided. The yoke 22 is made of a magnetic material such as iron. The pair of yokes 22 are fixed to the plate-like member 12 by fastening members such as bolts, for example. The magnet 16 is fixed to the yoke 22. Note that the positions of the magnet 16 and the yoke 22 in the third direction D3 may be reversed.

[0072] As shown in FIGS. 15 and 16, a pair of sheets 24 made of silicon rubber are provided so as to cover the pair of magnet groups 14. In this reference example, the sheet 24 is provided so as to cover the magnet group 14 and the yoke 20. As shown in FIG. 15, each sheet 24 is fixed to the plate-like member 12 by a plurality of fixing plates 26 and a plurality of bolts 28. The fixing plate 26 is made of, for example, stainless steel. Similarly, as shown in FIGS. 15 and 17, a pair of sheets 30 made of silicon rubber are provided so as to cover the pair of magnets 16. In this reference example, the sheet 30 is provided so as to cover the magnet 16 and the yoke 22. As shown in FIG. 15, each sheet 30 is fixed to the plate-like member 12 by a plurality of bolts 32.

[0073] As shown in FIGS. 13 to 17, in this reference example, the gripping portion 18 is a handle. In this reference example, the pair of gripping portions 18 are fixed to both edge portions of the plate-like member 12 in the second direction D2. At least a part of each gripping portion 18 is provided on the other side (lower side) than the center of the plate-like member 12 in the first direction D1. In this reference example, the whole of each gripping portion 18 is provided on the other side (lower side) than the center of the plate-like member 12 in the first direction D1. In this reference example, the gripping portion 18 corresponds to the tension portion.

[0074] In this reference example, the gripping portion 18 is formed of, for example, aluminum. It is preferable to perform anodizing treatment on the surface of the gripping portion 18. In this case, it is possible to suppress the occurrence of electrolytic corrosion between the gripping portion 18 and the plate-like member 12.

[0075] (Function and effect) In this reference example, the adsorption pedestal 10 can be adsorbed to the surface 2a of the iron pillar 2 by the magnetic forces of the first magnet portion 4 (see FIG. 15) and the second magnet portion 6 (see FIG. 15). Here, in this reference example, the adsorption force of the first magnet portion 4 is greater than the adsorption force of the second magnet portion 6. Also, in the first direction D1, the first magnet portion 4 is provided on one side (upper side) of the center of the plate-like member 12, and the second magnet portion 6 is provided on the other side (lower side) of the center of the plate-like member 12. With such a configuration, when removing the adsorption pedestal 10 from the iron pillar 2 (object to be adsorbed), the operator can easily separate the second magnet portion 6, whose adsorption force is smaller than that of the first magnet portion 4, from the iron pillar 2 by pulling the lower portion of the plate-like member 12 in a direction away from the iron pillar 2. After separating the second magnet portion 6 from the iron pillar 2, the first magnet portion 4 can be easily separated from the iron pillar 2 by the lever principle. Therefore, in this reference example, even when the adsorption force of the first magnet portion 4 is made sufficiently large, the adsorption pedestal 10 can be easily removed from the iron pillar 2 without using a special operation jig. That is, even when a strong magnet is used as the magnet for adsorbing the adsorption pedestal 10 to the iron pillar 2, the adsorption pedestal 10 can be easily removed from the iron pillar 2. Note that in this reference example, at least a part of the gripping portion 18 is provided on the other side (lower side) of the center of the plate-like member 12. Thereby, the operator can easily pull the lower portion of the plate-like member 12 in a direction away from the iron pillar 2 by holding the gripping portion 18. As a result, the removal of the adsorption pedestal 10 from the iron pillar 2 becomes even easier.

[0076] When attaching the adsorption pedestal 10 to the iron pillar 2, for example, the first magnet portion 4 is adsorbed to the iron pillar 2 before the second magnet portion 6. Then, with the first magnet portion 4 as a fulcrum, the lower side of the adsorption pedestal 10 is moved toward the iron pillar 2, and the second magnet portion 6 can be adsorbed to the iron pillar 2. Therefore, when attaching the adsorption pedestal 10 to the iron pillar 2, there is no need to use a special operation jig. Thus, the adsorption pedestal 10 according to this reference example can be easily attached to and detached from the object to be adsorbed (the iron pillar 2 in this reference example) with a simple configuration.

[0077] Even if a force is applied to the suction pedestal 10 from the other side (lower side) in the first direction D1 during the use of the suction pedestal 10, the suction force of the second magnet portion 6 can sufficiently prevent the suction pedestal 10 from detaching from the object to be suctioned (iron column 2).

[0078] In this reference example, the plurality of magnets 40 constituting the magnet group 14 are arranged to be line-symmetrical with the center line L1 as the target axis. Thereby, the plate-like member 12 can be stably fixed to the iron column 2.

[0079] In this reference example, the fixing surface 20a of the yoke 20 that supports the magnet group 14 is inclined with respect to the plate-like member 12 such that the distance from the plate-like member 12 in the third direction D3 is closer to the center line L1 (see FIG. 15) side in the second direction D2. Thereby, as described above, even when using a prism-shaped magnet 40, the magnetic pole surface of each magnet 40 can be inclined with respect to the plate-like member 12. In this case, when the suction pedestal 10 is suctioned to the iron column 2, even if the surface 2a of the iron column 2 is curved in an arc shape, an increase in the gap between the surface 2a and the magnet 40 can be suppressed. As a result, the first magnet portion 4 can be suctioned to the iron column 2 with sufficient force. That is, in this reference example, the suction pedestal 10 can be suctioned to the iron column 2 with sufficient force without using a magnet having a special shape as the magnet 40 constituting the first magnet portion 4. Thereby, while suppressing the manufacturing cost of the suction pedestal 10, the performance of the suction pedestal 10 can be improved.

[0080] In this reference example, in each magnet group 14, the plurality of magnets 40 are arranged such that the magnetic pole surfaces of adjacent magnets 40 are of opposite polarities to each other. In this case, since magnetic flux can flow efficiently between adjacent magnets 40, even when there is a magnetic gap such as paint or rubber between the object to be suctioned (iron column 2) and the magnet group 14, sufficient suction force can be exerted.

[0081] In addition, in this reference example, the magnet group 14 (the first magnet portion 4) and the magnet 16 (the second magnet portion 6) are covered with the sheets 24 and 30 made of silicon rubber. Thereby, the weather resistance and water resistance of the adsorption pedestal 10 (the magnet group 14 and the magnet 16) can be improved. Further, in this reference example, the vertical load-bearing capacity is improved by utilizing the frictional force generated between the iron pillar 2 and the silicon rubber (the sheets 24 and 30).

[0082] (Other reference example) FIGS. 19 and 20 are rear views showing an adsorption pedestal according to another reference example. In the above-described reference example, the case where the magnet group 14 is provided on one side and the other side of the center line L1 in the second direction D2 has been described, but a magnet may be provided on the center line L1. For example, as shown in FIG. 19, the magnet group 14 may be provided on the center line L1. Further, in the above-described reference example, the case where the second magnet portion 6 is constituted by the magnets 16 provided on one side and the other side of the center line L1 in the second direction D2 has been described, but the magnet constituting the second magnet portion 6 may be one or three or more. Therefore, for example, as shown in FIG. 20, the second magnet portion 6 may be constituted by one magnet 16 provided on the center line L1. In the case where the first magnet portion is constituted by a plurality of magnets and in the case where the second magnet portion is constituted by a plurality of magnets, the plurality of magnets are preferably arranged to be line-symmetrical with the center line L1 as the target axis.

[0083] In the above-described reference example, the case where the gripping portion 18 (the handle in this reference example) is provided as the pulling portion has been described, but the pulling portion may be configured such that an operator can pull the plate-like member 12 in one side (the direction away from the iron pillar 2) in the third direction D3. More specifically, for example, the pulling portion may be configured such that an operator can hook a finger, and may be a hole (a hole for hooking a finger) formed in the plate-like member 12. Further, in the above-described reference example, the case where a pair of gripping portions 18 are provided on the plate-like member 12 has been described, but the number of the pulling portions (the gripping portions) may be one or three or more.

[0084] In the above reference example, the case where the fixing surface 20a (FIG. 16) of the yoke 20 is inclined with respect to the plate-like member 12 has been described, but the thickness of the yoke 20 may be uniform. Further, for example, by inclining one magnetic pole surface (the magnetic pole surface on the side of the iron column 2) of each magnet 40 with respect to the other magnetic pole surface, one magnetic pole surface of each magnet 40 may be inclined with respect to the plate-like member 12.

[0085] Also, when viewed from the first direction D1, each magnet group 14 may be supported by the plate-like member 12 so that the inclination of each magnet group 14 with respect to the plate-like member 12 can be changed according to the shape of the surface of the object to be adsorbed (for example, the iron column 2). FIGS. 21 to 23 are schematic views showing the adsorption pedestal according to the modified example. For example, as shown in FIG. 21, each magnet group 14 may be supported by the plate-like member 12 so as to be swingable around a swing shaft 34 extending in the first direction D1. In this case, for example, both edge portions of the plate-like member 12 in the first direction D1 may be bent, and the swing shaft 34 may be supported at the bent portions. Further, the yoke 20 and the yoke 22 may be attached to the swing shaft 34 so as to be swingable around the swing shaft 34. For example, through holes penetrating in the first direction D1 may be formed in the yoke 20 and the yoke 22, and the swing shaft 34 may be passed through the through holes.

[0086] Also, for example, as shown in FIG. 22, each magnet group 14 may be supported so as to be swingable via a pair of elastic members 36. In this case, when the pair of elastic members 36 is deformed, the inclination of each magnet group 14 with respect to the plate-like member 12 can be changed according to the shape of the surface of the object to be adsorbed (for example, the iron column 2).

[0087] Further, for example, as shown in FIG. 23, plate-like members 13a and 13b may be further provided on both sides of the plate-like member 12 in the second direction D2. In this reference example, the plate-like members 13a and 13b are connected to the plate-like member 12 so as to be swingable about swing shafts 15a and 15b as swing centers. Further, in this reference example, a support object 1 is provided on one side in the thickness direction of the plate-like member 12, and a plurality of magnet groups 14 are provided on the other side. Specifically, the support object 1 is fixed to the plate-like member 12 so as to be positioned on one side in the thickness direction of the plate-like member 12, and magnet groups 14 are fixed to the plate-like members 12, 13a, and 13b, respectively, so as to be positioned on the other side in the thickness direction of the plate-like member 12. In this reference example, when the plate-like members 13a and 13b swing with respect to the plate-like member 12, the inclination of the pair of magnet groups 14 held by the plate-like members 13a and 13b can be changed with respect to the plate-like member 12 according to the shape of the surface of the adsorption object (for example, the iron column 2).

[0088] In the above reference example, the case where the support object 1 is fixed to the plate-like member 12 has been described, but the support object 1 does not necessarily have to be directly fixed to the plate-like member 12. For example, the support object 1 may be fixed to a member different from the plate-like member 12 (hereinafter referred to as a fixing member), and the plate-like member 12 may support the fixing member so as to be swingable. In this case, the position of the support object 1 with respect to the plate-like member 12 can be adjusted by making it possible to fix the position of the fixing member with respect to the plate-like member 12 at a desired position.

[0089] The adsorption object for adsorbing the adsorption pedestal 10 is not limited to the iron column 2, and the adsorption pedestal 10 may be adsorbed using a wall or the like made of a magnetic material such as steel as the adsorption object.

Industrial Applicability

[0090] According to the present invention, an adsorption pedestal that is easy to remove can be obtained even when a strong magnet is used.

Explanation of Signs

[0091] 1 Support object 2 Iron column 11 Suction pedestal 50 Plate-like member 52 Magnet part 54 Support part 56 Gripping part 58, 60 Sheet 62 Cover plate 64 Magnet 66 Yoke

Claims

1. An adsorption base that can be attached to a curved surface having a cross section that is curved in an arc shape, A plate-like member configured to be able to hold an object on one side in a thickness direction; A pair of magnet portions provided on the other side of the plate-shaped member in the thickness direction; a pair of support portions provided on the other side of the plate-like member in the thickness direction, The pair of support parts are made of a magnetic material other than a permanent magnet or a non-magnetic material, In a first direction perpendicular to the thickness direction, the pair of magnet portions are provided on one side of a first center line of the plate-like member extending in a second direction perpendicular to the thickness direction and the first direction, and the pair of support portions are provided on the other side of the first center line, In the second direction, one of the magnet portions and one of the support portions is provided on one side of a second center line of the plate-like member extending in the first direction, and the other of the magnet portions and the other of the support portions is provided on the other side of the second center line, each of the pair of magnet portions has an attraction surface that faces the curved surface when the attraction base is attached to the curved surface; each of the pair of support portions has a support surface that faces the curved surface when the suction base is attached to the curved surface; the suction surface and the support surface are each inclined with respect to the plate-like member so that a distance between the suction surface and the plate-like member in the thickness direction becomes closer or farther toward the first center line in the first direction, or are inclined with respect to the plate-like member so that a distance between the suction surface and the plate-like member in the thickness direction becomes closer or farther toward the second center line in the second direction, Each of the pair of magnet portions includes a magnet and a yoke provided on one side or the other side of the magnet in the thickness direction, In each magnet portion, one of the magnet and the yoke has a dimension in the thickness direction that is smaller or larger toward the first center line in the first direction, or a dimension in the thickness direction that is smaller or larger toward the second center line in the second direction.

2. Each of the pair of magnet portions includes a plurality of magnets, In each magnet portion, the yoke is provided between the magnets and the plate-like member, Each magnet of the magnet portion has a magnetic pole surface on one side and the other side in the thickness direction, The adsorption base according to claim 1 , wherein in the magnet portion, magnetic pole faces of adjacent magnets have opposite polarities.

3. The adsorption base according to claim 1 , wherein each of the pair of magnet portions includes a rare earth magnet.

4. The suction base according to claim 1 , further comprising a pulling portion provided on the other side of the first center line in the first direction, the pulling portion enabling an operator to pull the plate-like member to one side in the thickness direction.

5. The suction base according to claim 4 , wherein the pull portion is a grip portion that can be gripped by the operator, and at least a portion of the grip portion is provided on the other side of the first center line in the first direction.

6. The pair of magnet portions are arranged to be symmetrical with respect to the second center line, The suction base according to claim 1 , wherein the pair of support portions are arranged to be symmetrical with respect to the second center line.

7. The adsorption base according to claim 1 , wherein the pair of magnet portions and the pair of support portions are covered with a sheet made of silicone rubber.

8. An suction base as described in claim 4, wherein the pulling portion is a gripping portion that is detachably attached to the plate-like member and can be gripped by the worker.

Images