JP2015143418A - Weight for display article of vehicle transport ship or the like, and display article having the weight - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a weight for a display article of a vehicle transport ship or the like which firmly presses down a display article body used for the vehicle transport ship or the like and is easy to carry, and to provide the display article having the weight.SOLUTION: A weight 3 for a display article 1 of a vehicle transport ship 90 or the like, the weight consisting of a base member having a shape of a ring A as a whole, provided with an opening fitted to a cylindrical part 11 on a flange-like part 20 at the bottom part of a display article body 2 to be pressed, as a central opening, comprises: a base member body 4 in the shape of the ring A as a whole, which includes a large number of magnet storage recesses 5 opened on one annular surface 32 side of the ring A with intervals in a circumferential direction of the ring A, and in which outer surfaces 48 positioned on the lower annular surface side of the ring A of bottom walls 46 of the magnet storage recesses 5 protrude so as to contact a floor 91 on the lower side, and permanent magnets 70 which are stored in the plurality of magnet storage recesses 5 of the large number of magnet storage recesses 5 and a plurality of lids 60 which individually close the openings of the plurality of magnet storage recesses 5, are provided.

Description

  The present invention relates to a weight suitable for use in a display device for a vehicle transport ship for displaying information such as the course of a vehicle, a parking / stopping position, and caution information for the progress of the vehicle in the vehicle transport ship, that is, for a display device such as a vehicle transport ship And a display device including the weight.

  Conventionally, conical so-called cones have been used as display devices for vehicle transport ships. The cone is formed with a flange-like part (a collar part) at the maximum diameter part at the lower end so that it can be stably placed on the floor of the ship, and a rubber ring-shaped weight member on the collar part (Except for the weight member, the cone itself is the same as that shown in FIGS. 9 to 10 of Patent Document 2 described later).

  However, since the cone has a height of about 1.5 m so that it can be surely seen by the driver, the cone itself is not only heavy (for example, about 1 kg), but in particular, a ring-shaped weight member for holding the cone is provided. It becomes heavier (for example, about 10 kg), and when a large number of cones are arranged at a desired position in order to display the course of the vehicle, etc. in the vehicle transport ship, a weight consisting of a weight member is inserted into the cone and pressed. But it's hard to ignore.

  On the other hand, the present inventor uses a pole as a main body of the display device and provides a magnet accommodating chamber in a pedestal at the lower end of the pole so that the magnet is accommodated in the accommodating chamber. An apparatus was proposed (Patent Document 1). More specifically, this proposed apparatus is provided with a plurality of magnet recesses in the form of a plurality of deep recesses in a magnet recess in the form of a large recess provided in the center of the bottom base portion, and each of the recesses. After the magnet was disposed on the lid, the lid-side base portion was covered on the bottom-side base portion so as to cover the entire large recess.

  The display pole device for a vehicle transport ship disclosed in Patent Document 1 is configured such that a magnet housed in a magnet housing chamber of a pedestal portion is magnetostatically attracted to a steel floor or the like of a vehicle transport ship, thereby Although it is excellent in that the actual weight can be minimized, it is designed to accommodate a plurality of variable number of magnets in a magnet housing chamber with a narrow pedestal. The attractive force and the repulsive force between each other worked strongly, and there was a problem that it was difficult to accommodate the desired number of magnets in the desired magnet accommodating recess. That is, in the case of the display pole device of Patent Document 1, a plurality of small recesses that accommodate magnets are located close to the large recess and the small recesses are separated at the same time by covering the lid side base portion. Since the static magnetic force acting between the magnets accommodated in each small recess is strongly attracted and repelled by the magnets, the desired number of magnets can be transferred to the desired small recess ( It was not easy to cover the lid side base portion in the state of being housed in the magnet housing recess).

  For the purpose of firmly attaching the display pole device to a predetermined position, a magnet is attached to the center of the bottom of the main body of the relatively thick cylindrical pole device and ferrite is placed on the road surface on which the pole device is to be installed. A road surface pole device has been proposed in which a steel plate such as a stainless steel SUS430 is preliminarily disposed and the pole device body is supported by magnetic adsorption by placing the bottom of the pole device on the steel plate ( Patent Document 2). More specifically, in the pole device disclosed in Patent Document 2, a cup-shaped yoke made of a magnetic material is disposed downward on the bottom of the pole, and an annular permanent magnet is magnetized in the cup. Is formed by screwing a set screw penetrating the central hole of the annular magnet into a nut attached to the lower transverse wall portion of the cylindrical pole device main body.

  In this pole device, the cylindrical pole device main body is thicker than a few centimeters in diameter, and practically lacks flexibility. Further, the magnet has a large diameter that is equal to or larger than the diameter of the pole device main body. Moreover, if it is going to support a pole apparatus main body, it is necessary to enlarge a magnet, and it is necessary to enlarge the expansion of a base part so that a torque can be supported in a base part. Large magnets increase costs.

  Further, in the case of Patent Documents 1 and 2, since the magnet is positioned at or near the center of the bottom located directly below the pole, it is difficult to avoid the lower limit of moment that would cause the pole to fall.

JP 2012-132212 A JP-A-2005-207142

  The present invention has been made in view of the above-mentioned points, and an object thereof is to provide a display device for a vehicle transport ship or the like that can firmly hold a display device body used for a vehicle transport ship or the like and is easy to carry. A weight and a display device including the weight are provided.

  In order to achieve the above object, a weight for a display device such as a vehicle transport ship according to the present invention is provided as a whole with an opening fitted as a central opening on the bottom of the display device body to be pressed on the bottom of the display device body. A weight for a display device, such as a vehicle transport ship, formed of a base member in the form of a base, which is a base member main body in the form of the ring as a whole and opened on the one annular surface side of the ring The outer surface located on the other annular surface side of the ring of the bottom wall of the magnet housing recess is in contact with the floor on the other annular surface side. A protruding magnet, a permanent magnet housed in a plurality of magnet housing recesses among a plurality of magnet housing recesses, and a plurality of lids for individually closing the openings of the plurality of magnet housing recesses.

  In the weight of the present invention, since the permanent magnet is housed in the plurality of magnet housing recesses of the annular base member body, the base member can be adsorbed magnetostatically to the steel floor of the vehicle transport ship, etc. The weight of the weight can be reduced and the carrying of the magnet can be easily carried out, and the plurality of magnet housing recesses for housing the permanent magnets are fitted in the cylindrical portion above the flange portion at the bottom of the display device body. Since the ring having the opening is provided at intervals in the circumferential direction, the interval between the magnet receiving recesses is larger than in the case of Patent Document 1 in which the magnet receiving recesses are concentrated at the central portion. There is little possibility that it will be difficult to house the magnet due to the magnetic force, and the magnet housing recesses can be individually closed with a lid, so there is virtually no possibility that housing the magnet will be difficult due to the mutual magnetic force between the magnets. In addition, in the weight of the present invention, the plurality of magnet housing recesses in which the permanent magnets are housed are circumferentially spaced around the ring having a central opening that fits into the cylindrical portion on the flange-like portion at the bottom of the display device body. Therefore, each magnet is placed on the steel floor of a vehicle transport ship at a position farther from the center of the display device than in the case of Patent Document 1 in which the magnet housing recesses are concentrated in the center. Because it will be magnetically attracted, the moment that resists the fall of the display device body (the moment that prevents the display device body from overturning against the moment that the display device body falls) increases, It can be supported stably against falls. In the case of a conventional weight in the form of a weight member, in order to increase the moment against the overturn of the display device body, the weight itself is made extremely heavy or the weight balance of the weight is located away from the center. Whereas the weight needs to be thicker and heavier away from the center, in the case of a weight for a display device such as a vehicle transport ship of the present invention, simply adjusting the position of the magnet housing recess It ’s enough. From the standpoint of the static magnetism of the permanent magnet, it is natural that a stronger magnet can more reliably prevent overturning, and the base member body has a ring shape. It is also possible to use a magnet having a small magnetic force.

  In this specification, “vehicle transport ship etc.” rather than simply “vehicle transport ship” means that a magnetic material portion having a surface on which a permanent magnet can be attracted by magnetostatic attraction is used. For example, since the weight for a display device of the present invention is not limited to a vehicle transport ship and can be applied in the same manner, it has such a surface that “permanent magnets can be adsorbed by magnetostatic attraction. It is intended to include those having a magnetic material portion and applicable to a display device.

  Here, the inner circumference and the outer circumference of the “ring” are typically both circular, but the inner circumference (center opening) corresponds to the shape of the bottom of the display device body to be inscribed. If necessary, other shapes such as an ellipse and a polygon may be used, and the outer periphery may be an ellipse, a rectangle and other polygons as desired.

  In the weight for a display device such as a vehicle transport ship of the present invention, typically, the outer periphery of the peripheral wall of a large number of magnet housing recesses is just fitted to the outer periphery of the base portion as a base of the main body of the display device as a whole. Thus, the base member body protrudes on the other annular surface side.

  In this case, the bottom surface of the bottom wall of the magnet housing recess can directly define the contact surface between the weight and the floor of the vehicle transport ship, etc., so that the magnet is reliably attracted to the floor of the vehicle transport ship by the magnetostatic attraction. In addition to being easy, the use of the material constituting the base member body can be minimized. However, if desired, portions other than the peripheral wall of the magnet housing recess may also protrude on the other annular surface side, and in that case, typically, the magnet is typically spaced apart in the circumferential direction from the annular protrusion. An accommodation recess is formed.

  The weight for a display device such as a vehicle transport ship of the present invention is typically configured such that the lid is fixed to the magnet housing recess by screwing.

  In that case, even if the thickness or number of permanent magnets accommodated in the magnet accommodating recess is changed as desired, the depth of the recess remaining in the magnet accommodating recess after the magnet is accommodated can be changed. By simply changing the screwing amount, the magnet can be reliably accommodated and pressed in response to the fluctuation. However, in use, the magnet can be attracted to the bottom wall of the magnet housing recess so that the lid can be screwed as long as each magnet housing recess can be closed to the extent that the lid can be surely avoided. It may be adapted to be attached to the opening of the magnet housing recess in a form other than the above.

  In the weight for a display device such as a vehicle transport ship of the present invention, typically, the number is four or more, and the number is three or more.

  In that case, the weight can reliably prevent the fall. However, depending on the case, two or more may be present. In addition, it is preferable that the number of the plurality is, for example, about 5 to 8 or more so as to withstand a falling moment in various directions. Of course, the plurality is more than the plurality.

  In order to achieve the above object, a display device for a vehicle transport ship or the like according to the present invention is a display device main body including the above-described weight, a bottom flange-like portion, and a cylindrical portion on the flange-like portion. And the bottom flange portion is pressed by the weight.

  In a display device such as a vehicle transport ship of the present invention, the display device body is typically made of a cone.

  However, in the display device such as a vehicle transport ship of the present invention, instead of the display device main body made of a cone, the display device main body has a pole extending upward from the cylindrical portion and a display main body formed on the top of the pole. And may be provided. The display device main body may be composed of the pole itself (in this case, the pole itself includes the display unit main body).

FIG. 1 shows a display device for a vehicle transport ship according to a preferred embodiment of the present invention equipped with a weight for a display device for a vehicle transport ship according to a preferred embodiment of the present invention, wherein FIG. Is front explanatory drawing. 1A and 1B are diagrams illustrating the display device of FIG. 1, in which FIG. 1A is a bottom view, and FIG. 2B is a cross-sectional view taken along the line IIB-IIB in FIG. FIG. 2 is a perspective explanatory view showing a part of the display device of FIG. 1 broken along the diameter of the annular weight, and a partially broken perspective explanatory view showing the weight part as a solid line and the cone part as an imaginary line. (However, the magnet and lid are omitted). FIG. 1 shows a weight for a display device for a vehicle transport ship in FIG. 1, (a) is a perspective view seen obliquely from above (however, magnets and lids are omitted), and (b) is a weight in the diameter direction. The perspective explanatory view seen from diagonally above shown in a broken state (In this figure, the cover is omitted except for the two recesses, and an example in which two magnets are accommodated in some recesses is shown. (Even if one magnet is accommodated in each recess, one magnet may be accommodated in some of the recesses, or the number of magnets accommodated by the recesses may be different), (c) The perspective explanatory view seen from diagonally below. FIG. 4 shows the weight of FIG. 4, (a) is an explanatory plan view, (b) is an explanatory front view shown in an exploded state (in this figure, an example in which two magnets are accommodated in a part of recesses) However, even if one magnet is accommodated in each recess, one magnet is accommodated in some of the recesses, or the number of magnets accommodated by the recesses may be different. 4 shows the weight of FIG. 4, (a) is an explanatory bottom view, (b) is an exploded view taken along the line VIB-VIB in FIG. 5 (a) and FIG. 6 (a).

  A preferred embodiment of the present invention will be described based on a preferred embodiment shown in the accompanying drawings.

  As shown in FIGS. 1 to 3, a display device 1 for a vehicle transport ship or the like according to a preferred embodiment of the present invention is used for a cone 2 as a display device body and a vehicle transport ship according to a preferred embodiment of the present invention. Display device weight 3.

  The cone 2 includes a generally hollow cone-shaped cone body 10 and a flange-shaped portion (saddle-shaped portion) 20. The cone 2 is typically made of a soft plastic. However, it may be made of rubber or the like instead of plastic, or may be made of hard plastic instead of soft material.

  More specifically, the cone body 10 includes a hollow conical portion 11 (center line C) occupying most of the portion, and a cylindrical portion 14 (continuously extending from the circular end portion 12 to the lower end portion 13 of the hollow conical portion 11 ( A center line C). The cylindrical portion 14 may be in the form of a hollow truncated cone having a diameter that increases with distance from the hollow conical portion 11 instead of the shape of a cylinder, that is, a hollow column (thus, a hollow cone instead of a cylindrical portion). It may be a trapezoidal part). Further, the truncated cone portion or the cylindrical portion 14 may not be provided. In this case, the cone body 10 includes the hollow cone portion 11, and the portion near the lower end of the cone tube portion of the cone body 10 is the bottom flange-like portion 20. Acts as a cylindrical part on the top.

  The cross section of the cone body 10 is typically a circle having a center at a point C (which is a cross section of the center line C), but may be an ellipse or a polygon instead of a circle. Moreover, the cross section of the upper part of the cone main body 10 may be a polygonal shape, and the cross section may approach a circle or an ellipse as it approaches the lower part of the cone main body 10.

  The flange-like portion or flange-like portion 20 is in the form of a generally annular plate-like flange or flange 21 that extends radially outward from the lower end portion 13 of the cylindrical portion 14 at the bottom of the cone body 10 and has a thickness T1. Accordingly, the cylindrical portion 14 is positioned on the flange-shaped portion 20 that forms the bottom of the main body 10 of the cone 2. The flange 21 has an annular shape having an outer diameter R1 and an upper surface 22 having an inner diameter R2 (the lower surface 23 has an inner diameter R3 (<R2)). When the inner peripheral edge of the ridge 21 has a shape other than a circle, typically, the outer peripheral edge has a substantially similar shape. However, if desired, the planar shape of the outer peripheral edge may not be similar to the planar shape of the inner peripheral edge and may be different. For example, the planar shape of the inner periphery may be circular and the planar shape of the outer periphery may be a polygon, or the planar shape of the inner periphery may be a polygon and the planar shape of the outer periphery may be a circle. The ridge 21 of the ridge-shaped portion 20 is not a flat plate as long as it defines a single plane as a whole on its lower surface side so that it can be stably placed on the floor (the tangent surface becomes a plane). A reinforcing rib or the like may be provided on 22 or the lower surface 23.

  As shown in FIGS. 4 to 6 in addition to FIGS. 1 to 3, the weight 3 includes a base member body 4 that forms a frame of the weight 3, a large number of lids 60, and permanent magnets 70.

  The base member main body 4 is made of a non-magnetic material and has an annular shape as a whole, and includes an annular plate-shaped portion 30 that defines the basic shape of the main body 4, a magnet housing recess forming portion 40, and a rib structure portion 50. Is provided. The nonmagnetic material of the base member body 4 is typically made of a plastic material. The plastic material constituting the base member main body 4 is typically made of a somewhat soft material so that the impact is easily absorbed, but may be made of a hard plastic material if desired.

  The annular plate-like portion 30 is composed of an annular plate 31 having a thickness T2 in the form of an annular A (central axis C) having an outer diameter D3 (= 2R3) and an inner diameter D4 (= 2R4). Through holes 34 (center C1, inner diameter D5) penetrating the annular surface 32 and the lower annular surface 33 are provided at equal intervals in the circumferential direction of the annular ring A at a distance of R8 from the center C of the annular ring A. . The number of the holes 34 is typically three or more and may not be eight as long as it is about ten or less. However, depending on circumstances, the number may be two or more than ten.

  A magnet housing recess forming portion 40 is integrally formed at each through hole 34 on the lower annular surface 33 side of the annular plate-shaped portion 30. Here, the magnet housing recess forming portion 40 includes a recess defining wall portion 42 having an inner peripheral surface 41 (inner diameter D5) having the same shape as the peripheral surface 35 of each through hole 34. The recess defining wall portion 42 includes a peripheral wall 43 that defines the inner peripheral surface 41, and a bottom wall 46 that includes a surface 45 that closes the lower end 44 of the peripheral wall 43 on the upper side. The outer peripheral surface 47 (outer diameter D6) of the peripheral wall 43 is cylindrical like the inner peripheral surface 41. In each of the recess defining wall portions 42, the protruding length from the lower annular surface 33 of the annular plate-shaped portion 30 to the lower surface (bottom surface) 48 of the bottom wall 46 is T3.

  The inner peripheral surface 35 of the through hole 34 of the annular plate-shaped portion 30, the inner peripheral surface 41 of the peripheral wall 43 of the recess defining wall portion 42, and the upper surface 45 of the bottom wall 46 of the recess defining wall portion 42 cooperate to form the opening 36. The provided magnet housing recess 5 is defined.

  Accordingly, each magnet accommodating recess 5 includes an opening 36 in the upper annular surface 32 of the annular plate-shaped portion 30, and the lower surface (bottom surface) 48 of the bottom wall 46 of the recess defining wall portion 42 of the eight magnet accommodating recesses 5. Defines one plane as a whole, and the peripheral wall 46 of the recess defining walls 42 of the eight magnet housing recesses 5 circumscribes a virtual cylinder having a radius R1 around the central axis C as a whole.

  A rib structure portion 50 is integrally formed on the lower annular surface 33 side of the annular plate-shaped portion 30. In the illustrated example, the rib structure portion 50 includes an outer peripheral circular rib portion 51 and an inner peripheral circular rib portion 52 along both the outer periphery and the inner periphery of the lower annular surface 33, and both circular rib portions 51, 52. The intermediate circular rib portions 53 and 54 are concentrically positioned between the plurality of radial or radial rib portions 55, and the rib portions 51, 52, 53, 54, and 55 are formed on the annular plate-shaped portion 30. It is integrally formed with the lower annular surface 33 and is integrally connected with each other at the intersection.

  Height T4 of each rib part 51, 52, 53, 54, 55 (length from the lower annular surface 33 of the annular plate-shaped part 30 to the lower surface 56 of the rib parts 51, 52, 53, 54, 55) Are the same as each other and smaller than the protruding length T3 of each recess defining wall 42, and the difference ΔT (= T3−T4) in the protruding length is the thickness T1 of the flange-shaped portion or flange-shaped portion 20 of the cone 2. And practically match.

  In the above, the annular plate-shaped portion 30, the eight concave defining walls 42, the circular rib portions 51, 52, 53, 54 and the large number of radial rib portions 55 form the base member body 4 in the form of the ring A as a whole. The inner peripheral surface 57 of the inner peripheral circular rib portion 52 defines a cylindrical or circular opening 58 having a radius R2. Further, the upper annular surface 32 of the annular plate-shaped portion 30 defines the opening 36 of the magnet housing recess 5 on the upper surface side of the base member body 4, and the lower surface of the bottom wall 46 of the recess defining wall portion 42 of the magnet housing recess 5. 48 protrudes downward so as to contact the floor.

  In this example, both the inner peripheral circular rib portion 52 of the base member main body 4 and the peripheral wall 46 of the recess defining wall portion 42 of the eight magnet housing recesses 5 are circular or cylindrical surfaces having a radius R2 around the central axis C. , And is designed to be fitted to the cylindrical portion 14 of the cone 2, but one of them is farther from the center C than R 2, and one of them is the cylindrical portion of the cone 2. 14 may be just fitted.

  Further, at least one of the inner peripheral rib portion 52 of the base member main body 4 and the peripheral wall 46 of the concave portion defining wall portion 42 of the eight magnet housing concave portions 5 circumscribes the cylindrical portion 14 of the cone 2 and is centered. As long as the displacement of the cone 2 in the plane perpendicular to the axis C can be prevented, the cross section of the cylindrical portion 14 does not have to be circular, and the inner rib portion 52 and the plurality of magnet housing recesses 5 The peripheral wall 46 of the recess defining wall 42 may not have a shape or arrangement that circumscribes the circle.

  Of the inner peripheral surface 35 of the through hole 34 and the inner peripheral surface 41 of the peripheral wall 43 of the recess defining wall portion 42, inner peripheral surfaces 35, 41 (on the inside of the magnet housing recess 5) located on the opening 36 side of the through hole 34. A female thread portion 37 is formed on the peripheral surfaces 35, 41), and the opening 36 of the magnet housing recess 5 is closed by screwing the lid 60 on which the male thread portion 61 is formed. A radial engagement groove 62 is formed in the lid 60, and the lid 60 is rotated by a driver (screwdriver), a coin, or the like, and the magnet housing recess 5 is screwed or released. .

  The permanent magnet 70 is in the form of a disc 71 having an outer diameter D7. The diameter D7 is substantially the same as the inner diameter D5 of the through hole 34 (therefore, the inner diameter of the magnet housing recess 5) D5, and is slightly smaller than the diameter D5 so that the magnet 70 can be taken in and out. The thickness T5 of the magnet 70 is smaller than half the depth of the magnet housing recess 5 so that a plurality of magnets 70 can be housed in a single magnet housing recess 5. However, the number of magnets 70 that can be accommodated in one magnet accommodating recess 5 may be one. If desired, there may be magnets 70 of different thicknesses. The strength of the magnet 70 may be different depending on the material of the magnet 70 instead of the strength being different depending on the thickness.

  The display device 1 is assembled as follows.

  On the other hand, as shown in FIGS. 1B and 2B, the soft plastic of the display device 1 is placed on the surface of the steel floor 91 of the vehicle transport ship 90, that is, the desired position of the floor surface 92. The made cone 2 is placed in contact with the lower surface, that is, the bottom surface 23 of the flange 21 of the flange-shaped portion 20.

  On the other hand, one or more desired number of magnets 70 are accommodated in each of the three or more desired magnet accommodating recesses 5 of the base member main body 4, the lid 60 is fitted into the recess 5, and the male threaded portion 61 is replaced by the female threaded portion 37. The weight 3 is prepared by closing the opening of each recess 5 with the lid 60 by screwing and screwing.

  At this time, the magnet housing recess 5 is located in a circumferentially separated position of the annular ring A (having a radius as large as R1 (for example, about several tens of centimeters) or more) constituting the base member main body 4, and each magnet housing recess 5 Since the opening is individually closed by the lid 60 after the magnet 70 is accommodated in the recess 5, the magnetostatic attraction / repulsion between the magnets 70, 70 to be accommodated in the magnet accommodating recesses 5, 5 at different locations. There is no possibility that accommodation of the magnet 70 is hindered by the force. Further, since the lid 60 is closed by being screwed into the female screw portion 37 of the concave portion 5 with the male screw portion 61, the depth at which the lid 60 enters the concave portion 5 can be adjusted. The height or number of magnets 70 (that is, the effective weight of the weight 3 that serves to prevent the cone 2 from falling or moving) can be adjusted as desired.

  The weight 3 composed of three or more magnets 70 and lids 60 and the base member main body 4 typically has a weight of about several hundred grams to about 1 kg, and about 10 kg is a conventional rubber weight. In comparison, it is extremely light.

  Next, the weight 3 is put on the cone 2 placed on the floor 91. At this time, the inner side rib portion 52 of the base member main body 4 of the weight 3 just fits into the cylindrical portion 14 which is the maximum diameter portion of the cone 2, and the flange-like portion 20 of the cone 2 is formed on the outer circumferential surface 24 of the weight 3. It is located along an imaginary circle defined by the outer peripheral surface 47 of the peripheral wall 43 of the eight magnet housing recess forming wall portions 40 of the base member main body 4, and actually abuts on the outer peripheral surface 47 of the eight peripheral walls 43.

  Further, when the base member body 4 of the weight 3 is fitted into the flange-shaped portion 20 of the cone 2 until the flange-shaped portion 20 of the cone 2 is actually in contact with the lower surface 56 of the rib portions 52 and 55 on the upper surface 22 of the flange 21, The base member main body 4 of the weight 3 abuts on the upper surface 92 of the floor 91 of the ship 90 at the lower surface 48 of the bottom wall 46 of the magnet housing recess forming wall 40. When the weight 3 is fitted to the cone 2 to a certain extent, the above-described fitting between the cone 2 and the weight 3 is performed at once due to the magnetostatic attraction between the magnet 70 of the weight 3 and the steel floor 91 of the ship 90. Progress and complete. Thereby, the display apparatus 1 for vehicle transport ships provided with the weight 3 for display apparatuses for vehicle transport ships is completed.

  Therefore, the portion of the cone 2 constituting the display device main body may be provided with a display unit main body including a base or base and a pole instead of the cone 2. When the pole itself forms the display unit main body, it is not necessary to provide another display unit main body on the upper end side of the pole.

  In the display device 1 for a vehicle transport ship provided with the weight 3 for the display device for a vehicle transport ship formed as described above, the magnet 70 is connected to the ring A of the base member main body 4 from the center axis C of the cone 2. Magnetostatically adsorbed to the steel floor 91 at a position farther from the inner edge and outside the center of the base member body 4 in the radial direction of the ring A (the distance from the central axis is R8). As a result, the moment against the tipping of the cone 2 in the M1, M2 direction, etc. is increased, and the ability to prevent the tipping of the cone 2 is extremely enhanced. In particular, the difference is not only large compared to the case of Patent Document 1, but also the difference (the ability to prevent the display device body from falling over (moment to resist overturning)) compared to the case of Patent Document 2. .

  Moreover, in this display device 1, although the base member main body 4 of the weight 3 is stiffened to the extent that it is resistant to carrying and large deformation by the rib portions 51, 52, 53, 54, 55, a large twist Depending on the position of the ring A, the magnet 70 and the floor 91 may be placed at a plurality of locations in the ring A when a force that causes the display device 1 to slide (translate) along the surface 92 of the floor 91 is applied. Since the base member main body 4 is deformed to some extent, the entire base member main body 4 is translated and moved along the floor surface 91 at a stroke. There is little fear.

  As described above, in the weight 3 according to a preferred embodiment of the present invention, the permanent magnets 70, 70, 70,... Since the weight 3 acting as a base member can be adsorbed magnetostatically to the steel floor 91 of the vehicle transport ship, the weight of the weight 3 can be reduced, and it can be easily carried. In addition, the plurality of magnet housing recesses 5 in which the permanent magnets 70 are housed are formed in the ring A having a central opening that fits into the tubular portion 14 on the flange-like portion 20 at the bottom of the cone 2 as the display device body. Since the gap is provided in the circumferential direction, the gap between the magnet receiving recesses 5 is larger than in the case of Patent Document 1 in which the magnet receiving recesses 5 are concentrated at the central portion. Makes it difficult to accommodate the magnet 70 Since Le less moreover magnet housing recess 5 and 5 may be closed at each individual lid 60,60 fear that accommodates the magnet 70 by the magnets 70, 70 mutual electrostatic force becomes difficult to practically no. In addition, in this weight 3, the plurality of magnet housing recesses 5, 5, 5,... In which the permanent magnets 70, 70, 70,. Since the ring A having a central opening that fits into the cylindrical portion 14 of the lower portion of the main body 10 of the cone 2 is provided at intervals in the circumferential direction, the magnet housing recesses are concentrated in the central portion. As compared with the case of FIG. 3, the magnets 70, 70, 70,... Are magnetostatically placed on the steel floor 91 of the vehicle transport ship 90 at a position farther from the center C of the cone 2 as the display device body. Since it is adsorbed, the moment against the falling of the cone 2 as the display device main body becomes large, and the cone 2 can be supported more stably against the falling. In the case of a conventional weight in the form of a weight member, in order to increase the moment against the falling of the cone, the weight member is separated from the weight member so that the weight balance of the weight is located away from the center. The weight 3 needs to be thicker and heavier away from the center, but in the case of the weight 3, it is sufficient to simply adjust the position of the magnet housing recess 5. From the standpoint of the static magnetic force of the permanent magnet 70, it is natural that the stronger magnet can prevent the fall more firmly. Of course, the base member body 4 has the form of the ring A. It is also possible to use a magnet having a relatively small magnetic force as 70.

  In this weight 3, the outer peripheral surface 47 of the peripheral wall 43 of many recessed parts 5, 5, 5, ... is the outer peripheral surface of the flange-shaped part 20 as a base part used as the base of the cone 2 as a display apparatus main body as a whole. 24, so that the bottom surface 48 of the bottom wall 46 of the magnet housing recess 5 is in contact with the weight 3 and the floor 91 of the vehicle transport ship 90. , The magnets 70, 70, 70,... Are not only easily attracted to the floor 91 of the vehicle transport ship 90 by a magnetostatic attractive force, but also the material constituting the base member body 4. Use can be minimized. However, if desired, portions other than the peripheral wall 43 of the magnet housing recess 5 may similarly protrude on the bottom surface side of the base member body 4. In that case, for example, a magnet housing recess is formed in the annular protrusion at an interval in the circumferential direction.

  In this weight 3, each lid 60 is configured to be fixed to each magnet housing recess 5 by screwing, so that the thickness or number of permanent magnets 70 housed in the recess 5 can be set as desired. Even if the depth of the recess remaining in the recess 5 after the magnet 70 is accommodated by the change, the magnet 70 can be securely accommodated and pressed in response to the variation only by changing the screwing amount of the lid. obtain. However, since the magnet 70 can be attracted in close contact with the bottom wall 46 of the recess 5 in the use state, as long as the lid 60 can close each magnet receiving recess 5 to the extent that the magnet 70 can be surely avoided. The lid | cover 60 may be attached to the opening of the magnet accommodation recessed part 5 with forms other than screwing.

  Moreover, in this weight 3, since the number of the magnet accommodation recessed parts 5 is typically 4 or more and the number of the recessed parts 5 in which the magnet 70 is accommodated among the magnet accommodation recessed parts 5 is 3 or more, it is weight. 3 can reliably prevent overturning. However, depending on the case, the number of the recessed parts 5 in which the magnets 70 are accommodated among the magnet accommodating recessed parts 5 may be two or more. In addition, it is preferable that the number of the recesses 5 in which the magnets 70 are accommodated among the magnet accommodating recesses 5 is, for example, about 5 to 8 or more so as to withstand a falling moment in various directions.

  In the above description, an example in which the display device main body is formed of the cone 2 has been described. However, as long as the display device main body includes a flange-like portion at the lower end portion, a pole as shown in Patent Document 1 and a display portion at the upper end of the pole. It may consist of a main body. When the pole itself is configured to work as a display unit body as shown in Patent Document 1, the display device body may be composed of a flange-like portion at the lower end and a pole.

  In the above description, the display device 1 and the weight 3 have been described as being used in a vehicle transport ship. However, the portion where the bottom surface of the display device 1 or the weight 3 abuts is the floor of a vehicle transport ship or the like. In the case where the magnetic material is made of steel or other magnetic material, the display device 1 and the weight 3 can be applied to the portion as they are while taking advantage of the features of the invention. Therefore, when the display device 1 and the permanent magnet 70 of the weight 3 have a surface that is attracted by receiving a strong magnetostatic attraction, the one having the surface is different from the definition of a normal article. In this specification, it shall be included in “vehicle transport ship etc.”. For example, as in Patent Document 2, when a pole support such as a steel plate is intentionally fixed to the ground or the like, the ground portion to which such a pole support is fixed has the same effect as the floor of the vehicle transport ship. Therefore, it shall be included in “Vehicle transport ship etc.”.

DESCRIPTION OF SYMBOLS 1 Display apparatus 2 Cone 3 Weight for display apparatus 4 Base member main body 5 Magnet accommodation recessed part 10 Cone main body 11 Hollow cone part 12 Circular end part 13 Lower end part 14 Cylindrical part 20 Flange-like part (saddle-like part)
21 Flange
22 Upper surface 23 Lower surface (bottom surface)
24 outer peripheral surface 30 annular plate-shaped part 31 annular plate 32 upper annular surface 33 lower annular surface 34 through hole 35 peripheral surface (inner peripheral surface)
36 opening 37 internal thread part 40 magnet accommodation recessed part formation part (magnet accommodation recessed part formation wall part)
41 Inner peripheral surface 42 Concave defining wall 43 Peripheral wall 44 Lower end 45 Upper surface 46 Bottom wall 47 Outer peripheral surface 48
50 rib structure portion 51 outer peripheral side circular rib portion 52 inner peripheral side circular rib portions 53 and 54 circular rib portion 55 radial rib portion 56 bottom surface (lower surface) of the rib
57 Inner peripheral surface 58 Opening 60 Lid 61 Male thread portion 62 Radial engagement groove 70 Permanent magnet 71 Disk 90 Vehicle transport ship 91 Floor 92 Floor surface A Ring C Center axis D3, D6, D7 Outer diameter D4, D5 Inner diameter R3 , R4 Radius D3, D5, D6, D7 Inner diameter M1, M2 Fall direction R1 Outer diameter (radius)
R2, R3, R4 Inner diameter (radius)
R8 radius (arm length)
T2, T2, T5 Thickness T3 Projection length T4 Height ΔT Difference

Claims (7)

A weight for a display device such as a vehicle transport ship comprising a base member in the form of a ring as a whole provided with an opening fitted as a central opening on a cylindrical portion on a flange-like portion at the bottom of a display device body to be pressed. ,
The base member main body in the form of the ring as a whole, comprising a plurality of magnet receiving recesses opened on one annular surface side of the ring at intervals in the circumferential direction of the ring, and the bottom wall of the magnet receiving recess The outer surface located on the other annular surface side of the ring protruding so as to contact the floor on the other annular surface side,
A permanent magnet housed in a plurality of magnet housing recesses among the plurality of magnet housing recesses;
A weight for a display device such as a vehicle transport ship having a plurality of lids for individually closing the openings of the plurality of magnet housing recesses. The outer periphery of the peripheral wall of many magnet accommodation recessed parts protrudes in the said other annular surface side of a base member main body so that it may just fit in the outer periphery of the base part used as the base of the main body of a display apparatus as a whole. The weight for display apparatuses, such as a vehicle transport ship of 1. The weight for a display device such as a vehicle transport ship according to claim 1 or 2, wherein the lid is fixed to the magnet housing recess by screwing. The weight for a display device such as a vehicle transport ship according to any one of claims 1 to 3, wherein the number of the plurality is four or more, and the number of the plurality is three or more. The weight according to any one of claims 1 to 4,
A display device, such as a vehicle transport ship, having a bottom flange-like portion and a cylindrical portion on the flange-like portion, the bottom flange-like portion being pressed by a weight. 6. A display device for a vehicle transport ship or the like according to claim 5, wherein the display device body is made of a cone. The display device of a vehicle transport ship or the like according to claim 5, wherein the display device body includes a pole extending upward from the cylindrical portion and a display portion body formed on an upper portion of the pole.