JP2010092659A - Playground equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a static eliminator material for a playground equipment easily detachable from a playground equipment with a slide made of synthetic resin, capable of suitably eliminating static electricity charged on a human body when sliding down on a slide. <P>SOLUTION: A body part of a static eliminator unit 1 includes a metal conductive core with a double-layered structure covered by a static eliminating cover and a cap made of resin. The static eliminating cover includes a hole part through which the conductive core is penetrated outside. By coupling and inserting a button bolt connected with a grounding part 150 into the hole part formed in the static eliminating cover, the button bolt 9 is connected with the conductive core and the body part of the static eliminator unit 1 can be fixed on the slide as well. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a static eliminator for playground equipment that is used in a playground equipment having a downhill formed of a synthetic resin and for removing static electricity that is charged on a human body when the downhill is slid down.

  Conventionally, jungle gyms, log climbing, arch nets, slides, etc., as well as general playground equipment combining these, are known as large playground equipment installed in amusement parks and parks. These large playground equipments are designed and manufactured so as to satisfy the specification conditions such as safety and durability while using various materials such as metal, wood, and synthetic resin according to their uses and purposes. In particular, the slideway of the slide is manufactured from a synthetic resin such as polyethylene, acrylic resin and polycarbonate reinforced plastic (FRP) because it is not only low in frictional resistance but also lightweight and easy to mold. A lot is happening.

  However, if the slideway of the slide is formed of a synthetic resin with poor conductivity, static electricity generated by friction when sliding down the slideway cannot be released from the user, and the user's human body and clothes are charged. . For example, if the user is in contact with a current-carrying object such as a metal while being charged, a static electricity discharge phenomenon occurs, and the user is physically and mentally shocked. In particular, for small children who make up the majority of slide users, the effects of static electricity discharge are extremely large, and even a small amount of discharge can scare or cry out the slide. There is a strong social need for anti-static electricity. Furthermore, since the slideway of the slide has become longer and more complex in recent years with the increase in the size of playground equipment, the friction between the user and the slideway when using the slide (and hence the electrostatic charge potential) is increased. Increasingly, static discharge shocks on the slide cannot be overlooked.

  Therefore, various techniques related to a slide for removing static electricity generated in a downstrip made of synthetic resin have been proposed. Specifically, on the inner surface of the downhill formed of a non-conductive resin material, a plate-shaped or powder-type power receiving layer is formed on the portion where the user slides, or the portion where the user slides is electrically conductively protected. There is a known slide that is fixed to a conductive tape covered with a member and discharges static electricity accumulated in the user from the conductive member (power receiving layer and conductive tape) to the ground with a ground wire. (For example, see Patent Documents 1 and 2).

Japanese Utility Model Publication 3-34222 JP 2004-65880 A

  However, as in the invention described in Patent Document 1, when the plate-like conductor is fitted on the inner surface of the downhill, it is necessary to process and form a recess for fitting the plate-like conductor. In the case of coating a powdered conductor, it was necessary to make a small hole through the bottom of the runway for passing the ground wire. Moreover, in the invention described in Patent Document 2, it is necessary to coat the conductive tape on the inner surface of the downway with a conductive paint. The inventions described in Patent Document 1 and Patent Document 2 both have the problem that the number of processing steps by the operator increases and the manufacturing cost of the slide increases.

  In addition, when the conductive member is fitted or coated on the portion of the inner surface of the downway where the user makes sliding contact, as in the above prior art, it is necessary to replace the conductive member due to fatigue deterioration or aging deterioration. However, it is necessary to pull out the conductive member from the inner surface of the runway or to remove the coating, which not only causes trouble for the operator but also may damage the inner surface of the runway.

  In addition, when a conductor with high conductivity is provided at the portion where the user slides on the inner surface of the runway as in the prior art described above, the runway is placed in a state where the user's human body and clothes are charged at a high potential. When sliding down, a discharge phenomenon occurs when the user approaches the conductor. For this reason, there has been a problem that even if static electricity can be removed during use of the slide, the discharge shock of the static electricity cannot be completely prevented.

  An object of the present invention is to provide static electricity for playground equipment that can be easily attached to and detached from a playground equipment having a runway formed of a synthetic resin, and can appropriately remove static electricity charged to a human body when sliding down the downway. It is to provide a removal member.

  A static electricity removing member for playground equipment according to the present invention for solving the above-mentioned problems is attached to a playground equipment having a downhill formed of a synthetic resin, and removes static electricity from a human body down the downhill road. The conductive core is made of a long metal and is made of a synthetic resin-containing semiconductive material having a volume resistivity higher than that of the conductive core and is conductive so as to be in contact with the outer peripheral surface of the conductive core. A semiconductive protective part including and covering the conductive core part, the semiconductive protective part having a mounting hole exposing the conductive core part, a grounding member, and the grounding member through the mounting hole. And a mounting bracket that is electrically connected to the conductive core portion and is detachably attached to the downhill.

  The “playground equipment having a downhill formed of a synthetic resin” means a playground equipment (for example, a slide) in which at least the downhill is formed of a synthetic resin, and includes one in which the entire playground equipment is formed of a synthetic resin. “Downhill” means a member constituting the play equipment from the downhill start position to the downhill end position, and includes not only the downhill surface on which the user's buttocks and thighs slide, but also the handrail on which the user's palm slides. It includes a frame-like portion that defines the outer edge shape of the downhill road, such as an arch provided at the downhill start position and downhill end position. The “synthetic resin” may be any non-conductor (insulator) resin material having high electrical resistance and low electrical conductivity, and includes polyethylene, FRP, acrylic resin, polycarbonate, and the like.

  The “conductive core portion” may be a metal material of a conductor having an electric characteristic that has a small electric resistance and easily conducts electricity, but aluminum having excellent corrosion resistance and durability is suitable. “Long” is a line, bar, plate, tube, or a part thereof, or a combination thereof, and extends along a predetermined longitudinal direction, and is a plane perpendicular to the longitudinal direction. Means a portion whose width in the cross section is smaller than the length in the longitudinal direction, and is a shape suitable for attachment to a frame-like part (for example, a handrail or an arch) in the downhill of the play equipment.

The “semiconductive protection part” is only required to be formed of a material containing a semiconductive synthetic resin having electrical characteristics intermediate between an insulator and a conductor. Examples thereof include an antistatic material exhibiting a volume resistivity of ⁵ to 10 ⁸ Ωcm (more preferably 10 ⁷ Ωcm). The semiconductive protection part is provided so as to be in contact with the outer peripheral surface of the conductive core part, and the inside of the semiconductive protection part is in surface contact with the outer peripheral surface of the conductive core part, and the conductive core part Is covered with a semiconductive protective part. In addition, it is preferable that the semiconductor protection part is arrange | positioned so that it may closely_contact | adhere to the outer peripheral surface of a conductive core part.

  The “mounting bracket” is inserted into and removed from a mounting hole formed so as to penetrate the semiconductive protection part, and the main body part having the conductive core part and the semiconductive protection part as main elements is attached to and detached from the runway. What is necessary is just to have a structure (that is, a structure that can be electrically connected to the conductive core) that is a metal fitting and is connected to the conductive core in a state of being inserted into the mounting hole. For example, in addition to rivets, bolts, pins, and the like inserted into holes formed in the conductive core portion, members that are welded or bonded to the conductive core portion may be used. It may be a member engaged with a notch or a protrusion. However, the “mounting bracket” needs to be at least a metal conductor and needs to be connected so that the ground member can be electrically conducted.

  According to the above solution, the static electricity removing member for playground equipment removes static electricity charged on the human body in the playground equipment having a downhill formed of synthetic resin. The main body portion is formed so that two members of the conductive core portion and the semiconductive protection portion having different conductivity form a two-layer structure. A mounting hole is formed in the semiconductive protection part, and the body part is attached to the runway by inserting a mounting bracket into the mounting hole, while the body part is removed by removing the mounting bracket from the mounting hole. Removed from the runway.

  In the main body, the conductive core and the semiconductive protection portion are physically in close contact with each other, and when the mounting bracket is inserted into the mounting hole, the mounting bracket is connected to the conductive core, and the conductive portion is electrically conductive. The core portion is electrically connected to the ground member via the mounting bracket. When a user charged with static electricity comes into contact with the semiconductive protective part, the static electricity escapes from the semiconductive protective part to the conductive core part, and further escapes from the conductive core part to the ground member via the mounting bracket. And is expelled into the ground.

  In this way, when attaching the main body part of the static eliminator for playground equipment to the downhill, it is only necessary to insert the mounting bracket connected to the ground member into the attachment hole, and when removing the main body from the downway. The mounting bracket connected to the ground member need only be removed from the mounting hole. Therefore, the static electricity removing member for playground equipment can be attached to and detached from the playground equipment having a downhill formed of synthetic resin without causing much labor for the operator and suppressing the manufacturing cost.

  Further, the main body portion has a two-layer structure in which the conductive core portion is encapsulated by the semiconductive protection portion from the outer peripheral side. Since the metal conductive core portion of the main body portion is not exposed to the outside, the user can contact only the resin semiconductive protection portion. As a result, there is no risk that the user will be injured or cause a discharge phenomenon by touching the metal conductive core part, and it is safe by contacting the resin semiconductive protection part with elasticity. And static electricity can be removed gently.

  Moreover, in the static electricity removing member for playground equipment according to the present invention, the semiconductive protection portion has a wall portion protection portion that covers the wall portion in a cylindrical shape, and cap portions attached to both ends of the wall portion. Is preferred. According to this solution, since the outer peripheral surface of the conductive core portion is covered with the wall protection portion and both ends of the conductive core portion are covered with the cap portion, the operation process is simpler than that of the conventional coating or the like. Thus, it is possible to manufacture a main body part in which the conductive core part is not exposed to the outside.

  Further, in the static electricity removing member for playground equipment according to the present invention, the runway to which the static electricity removing member for playground equipment is attached has a frame-shaped portion that defines at least a part of the outer edge shape, and at least a part of the frame-shaped portion. The conductive core portion has a substantially flat first surface and a hole opening in the first surface, and the conductive core portion has a substantially flat installation surface, and is semiconductive. The protection unit has a substantially planar installation surface protection unit that covers the installation surface, and the mounting hole penetrates the installation surface protection unit and is a hole when the installation surface is placed on the first surface. It is preferable that it is formed at a position communicating with. According to this solution, the substantially flat installation surface is formed on the conductive core portion, and the substantially planar installation surface protection portion is formed on the semiconductive protection portion. The main body can be securely fixed by bringing the installation surface into surface contact with the downhill. The mounting hole is paired with one of the holes opened in the first surface when the installation surface is aligned with the first surface of the downhill, and is disposed in advance at a position where it can be mounted by a mounting bracket. Is preferred. When attaching the main body to the runway, there is no need to make a hole for attaching the mounting bracket in the downway each time, and the main body can be attached quickly and accurately.

  Moreover, in the static electricity removing member for playground equipment according to the present invention, the substantially planar portion of the downhill to which the static electricity removing member for playground equipment is attached has a curved portion, and the installation surface has a shape along the curved portion. Is preferred. It is preferable to form the main body so that the static elimination member for playground equipment does not protrude from the outer shape of the substantially planar portion when the substantially planar portion of the downhill is viewed from the front. According to this solution, since the main body is curved in advance along the outer edge shape of a frame-like portion (for example, a handrail or an arch) that the downway has, a frame that does not hinder the user from sliding down. The body portion can be accurately attached to the outer edge position of the shape portion. Moreover, since the installation surface can be attached along the outer edge of the frame-like part in the downhill, it can be reliably fixed without impairing the design of the play equipment even if the main body part is attached.

  In the static eliminator for playground equipment according to the present invention, the ground member includes a hollow column having at least two openings, and a ground extending from the one opening in a flange shape so that the mounting bracket can be inserted. It is preferable to have an earth attachment member having an attachment hole and an earth wire that is inserted into the inside of the column and led out from the two openings. The mounting bracket can be inserted into the ground mounting hole to mount the ground mounting member to the downway and to electrically connect the ground wire to the conductive core. By arranging a ground wire in a support column erected on the ground surface, static electricity can be released without using the play device support column. Since it has its own struts and does not use play equipment struts, it is possible to eliminate the need for a member to route the ground wire to the play equipment struts. Since the ground wire is disposed in the support column, it is possible to prevent the ground wire from being cut by an external factor.

  Furthermore, the playground equipment according to the present invention is formed of a synthetic resin, and includes a downway whose outer edge shape is defined by a frame-shaped portion, and a static electricity removal member for playground equipment. It is attached to the part.

  ADVANTAGE OF THE INVENTION According to this invention, while being able to take a static electricity countermeasure easily to the playground equipment which has a downhill formed with the synthetic resin, the static electricity charged to a human body when sliding down the downhill can be removed appropriately.

  FIG. 1 is a schematic front view of the general play equipment 100 according to the first embodiment. The general playground equipment 100 is a large-sized composite playground equipment in which a plurality of playground equipment, such as various slides and archnet climbing, as well as a half log climbing (not shown) are combined. In the present embodiment, a general play equipment 100 in which the static elimination unit 1 as a static electricity removing member for play equipment is attached to a pipe slider 107 made of polyethylene will be described.

  As shown in FIG. 1, the overall playground equipment 100 has a plurality of support columns 101 that are erected vertically to the ground surface. A floor board 102, a roof 103, a decorative panel 104, a handrail 105, and the like are appropriately attached at appropriate height positions of the column 101. Furthermore, various play equipments are appropriately attached via the floor board 102 and the decorative panel 104. In addition, the various playground equipment which comprises the comprehensive playground equipment 100 may be directly attached to the some support | pillar 101, without passing through the floor board 102 or the decoration panel 104. FIG.

  Specifically, the vinylon net 106 constituting the arch net climbing is installed so as to draw a gentle arc in a side view from one side surface of the floor plate 102 to the ground surface.

  The internally sealed pipe slider 107 constituting the slide is installed so as to be inclined from the upper slider inlet 112 joined to the decorative panel 104 toward the lower slider outlet 113 disposed near the ground surface. The pipe slider 107 is supported from below by slider columns 109 and 110 erected from the ground surface near the slider inlet 112 and the slider outlet 113, respectively. The slider columns 109 and 110 can prevent a decrease in durability associated with an increase in the overall length of the pipe slider 107 and damage and cracks associated therewith. Further, the pipe slider 107 comes into contact with the ground surface, and sand or sand from the ground surface. Rainwater can be prevented from flowing in.

  In the vicinity of the slider outlet 113 of the pipe slider 107, a pair of static eliminating units 1 are attached as static electricity removing members for playground equipment.

  FIG. 2 is a perspective view of the pipe slider 107. As shown in FIG. 2, the pipe slider 107 is configured by pipe bodies 120 a to 120 e that are sequentially provided from a slider inlet 112 that is a downhill start position to a slider outlet 113 that is a downhill end position.

  The pipe body 120 (hereinafter referred to as the pipe body 120 when the pipe bodies 120a to 120e and the other pipe bodies are not distinguished from each other) is a curved large cylindrical body made of polyethylene, and has a common wall thickness. And has a cross-sectional shape. The pipe body 120 of the present embodiment has a substantially circular annular cross section with a diameter of about 600 mm, and has a thickness of about 10 mm that can withstand the load of the user. Each pipe body 120 is formed to be curved in the outer circumferential direction while maintaining the shape and size of the cross section. The total length (center line length) along the meandering center line passing through the center of the cross section of each pipe body 120 of the present embodiment is about 600 mm to 800 mm. The openings at both ends (not shown) of the pipe bodies 120a to 120d and the opening at the upper end of the pipe body 120e are formed in a perfect circle shape orthogonal to the center line of each pipe body 120. A flange projecting in the outer peripheral direction is formed at the outer edge of the opening at both ends of each pipe body 120. Each flange is formed with a plurality of bolt holes at positions spaced apart along the outer edge. In addition, the numerical value shown by this embodiment is an example, and is not restricted to this.

  The upper end opening of the pipe body 120a is attached so as to communicate with the opening 104a penetrating the substantially central position of the standing decorative panel 104 in the horizontal direction. The adjacent pipe bodies 120 are positioned so that the openings and bolt holes communicate with each other by overlapping the flanges, and are joined by bolts and nuts inserted through the bolt holes. The pipe bodies 120a to 120e are continuously provided to form an integral long cylindrical shape, whereby a continuous downhill surface 114 on which the user can slide down is formed on the inner peripheral surface of the pipe slider 107. Since the pipe bodies 120 having the same cross-sectional shape and the same thickness are joined with their openings coincided with each other, the step at the joining position of the pipe bodies 120 is suppressed, and the sliding surface 114 in the pipe slider 107 becomes smooth. .

  In the pipe slider 107, there is formed a downway that meanders in a substantially lower right direction as viewed from the user who is going down. The pipe slider 107 of the present embodiment is formed with a downhill with a total length of about 3500 mm. The total length of the downhill of the pipe slider 107 can be arbitrarily increased or decreased by increasing the number of pipe bodies 120 provided continuously. By connecting various pipe bodies 120 with different degrees of curvature, the slope of the downhill surface 114 in the downhill direction can be increased or decreased, and the downhill direction can be appropriately curved to the left and right. Various changes can be made.

  The pipe bodies 120d and 120e disposed below are formed to have a smaller inclination angle with respect to the ground surface than the pipe bodies 120a to 120c disposed above. Since the user who slides down the pipe slider 107 decelerates by the pipe bodies 120d and 120e having a small inclination angle before reaching the slider outlet 113, the user jumps out to the ground with a momentum to slide down and gets injured. Can be prevented.

  FIG. 3 is a partial side view of the pipe slider 107 in the vicinity of the slider outlet 113 to which the static elimination unit 1 is attached. As shown in FIG. 3, the slider outlet 113 forming the lower end opening of the pipe body 120e is defined in a plane inclined by approximately 45 degrees with respect to the ground surface in a side view. FIG. 4 is a partial front view of the slider outlet 113 of the pipe slider 107 to which the static elimination unit 1 is attached as viewed from the front. As shown in FIG. 4, the slider outlet 113 has an elliptical shape with the vertical direction (longitudinal direction) as the longitudinal direction when viewed from the front, and opens obliquely upward. Since the slider outlet 113 having an elliptical shape has a larger area than the upper end opening of the pipe body 120e and the both end openings of the pipe bodies 120a to 120d, the user who has finished downhill exits to the ground surface through the slider outlet 113. It becomes easy to prevent injury from hitting the head against the inner peripheral surface of the pipe body 120e.

  As shown in FIG. 4, a flange-shaped arch portion 121 is formed on the outer edge of the slider outlet 113 so as to project a predetermined amount in the outer circumferential direction. The surface of the arch portion 121 on the slider outlet 113 side is formed in a substantially planar shape along a plane that defines the slider outlet 113. Hereinafter, the slider outlet 113 side surface of the present embodiment is referred to as a flange surface 121a. In the arch portion 121, six bolt holes 122 penetrating from the flange surface 121a to the back surface 121b are formed. The bolt holes 122 are arranged along the elliptical shape of the flange surface 121a, three by three symmetrically. The arch portion 121 not only forms the contour of the slider outlet 113 but also functions as a handrail that assists the user in getting out of the pipe body 120e toward the ground surface.

  As shown in FIG. 4, two static elimination units 1 are attached to the pipe body 120e so as to be symmetrical when the slider outlet 113 is viewed from the front. As shown in FIG. 3, each static elimination unit 1 includes a main body portion 5, three button bolts 9, and a ground portion 150, and passes through the lower surface 121 b of the arch portion 121 through the lower part of the pipe body 120 e and the slider support 110. It is extended to.

  As shown in FIG. 4, the two main body portions 5 have a long rod-like appearance, and are formed on the flange surface 121 a so as to be line symmetric with respect to a virtual center line passing through the upper end portion and the lower end portion of the arch portion 121. It is attached. Each main body 5 is curved and formed in a boomerang shape so that its longitudinal direction coincides with the circumference of the arch 121 along a plane that defines the flange surface 121a. In the present embodiment, the linear length between both end portions in the longitudinal direction of the main body 5 is formed to be 500 mm. The curvature of each main body 5 substantially matches the elliptical curvature (R = 600) formed by the arch part 121. The width of each main body 5 is substantially the same as the flange width (31.5 mm) in the outer circumferential direction of the flange surface 121a, so that each main body 5 does not protrude from the arch portion 121 when the flange surface 121a is viewed from the front. It has a nice shape. This not only keeps the appearance of the appearance, but also makes it possible to eliminate static electricity at the slider exit 113 at the downhill end position without causing injury to the downhiller. The total length of the two main body portions 5 occupies at least half of the entire circumference of the arch portion 121.

  FIG. 5 is a cross-sectional view in the direction of the arrows along line AA in FIG. 6 is a cross-sectional view in the direction of the arrows along the line BB in FIG. The main body 5 shown in FIG. 4 includes the conductor 2, the neutralizing rubber 3, the pop nut 11 shown in FIG. 5, the cap 4 and the countersunk screw 13 shown in FIG.

  A conductor 2 shown in FIG. 5 is an elongated cylindrical body made of aluminum having excellent corrosion resistance and durability, and has an electrical characteristic that the volume resistivity is small and it is easy to conduct electricity. Since the shape of the main body portion 5 is substantially determined by the shape of the core 2, the core 2 is optimally processed and formed in advance according to the range and shape of the portion to which the main body portion 5 is attached. The lead core 2 of this embodiment is processed and formed so as to be suitable for attachment to the flange surface 121a. Specifically, the conductor 2 has a long rod-like appearance along the main body 5 shown in FIG. 4 and is formed in a boomerang shape so that the longitudinal direction coincides with the circumference of the ellipse formed by the arch part 121. Yes. In the present embodiment, the linear length between both end portions in the longitudinal direction of the conductor core 2 is formed to be slightly smaller than the linear length (500 mm) between both end portions of the main body portion 5. The width of the conductor 2 is formed to be slightly smaller than the flange width (31.5 mm) in the outer circumferential direction of the flange surface 121a. The curvature of the conductor 2 is formed so as to coincide with the curvature (R = 600) of the main body 5.

  As shown in FIG. 5, the conductor 2 has a quadrangular cross section and is bent so that the corners of the cross section are rounded. Specifically, the lead core 2 is configured by four flat wall portions 7a to 7d that are integrally formed to form a cylindrical body. The wall portion 7a located below when viewed in cross-sectional shape is disposed along the flange surface 121a. The wall portion 7b extends upward from one end edge of the wall portion 7a on the inner side in the outer circumferential direction of the flange surface 6a. The wall portion 7c is connected to the upper edge portion of the wall portion 7b at one end edge and extends substantially parallel to the wall portion 7a from the upper end edge of the wall portion 7b. The width of the wall portion 7c along the outer peripheral direction of the flange surface 121a is formed to be narrower than the wall portion 7a. The wall portion 7d extends so as to gently descend from the other end edge of the wall portion 7c to the other end edge of the wall portion 7a. Here, the vertical direction is defined for convenience. The wall 7a has a substantially flat installation surface 6 facing the flange surface 121a. The wall 7a is formed with a hole 2a penetrating from the installation surface 6a to the inner surface. Six holes 2a are formed at positions overlapping 122 shown in FIG.

The static elimination rubber 3 shown in FIG. 5 is an antistatic material in which various conductive agents are blended with synthetic rubber, and has a semiconductive electrical property that is intermediate between an insulator and a conductor, and is 10 ⁵ to 10 ⁸ Ωcm. Volume resistivity is shown. The volumetric efficiency of the neutralizing rubber 3 is preferably 10 ⁷ Ωcm. The neutralizing rubber 3 is a thin-film cylindrical body having a thickness of about 1 mm and covers the outer peripheral surface of the conductor 2. Specifically, the neutralizing rubber 3 has a rectangular cross section and has an inner peripheral section that substantially matches the outer peripheral section of the conductor 2. A corner portion of the cross section of the neutralizing rubber 3 is rounded along the conductor 2. As shown in FIG. 6, the neutralizing rubber 3 has a length that substantially coincides with the conductor 2 in the longitudinal direction, and covers the conductor 2 to both ends of the conductor 2. By inserting the conductor 2 into the neutralization rubber 3 during manufacture, the inner surface of the neutralization rubber 3 can be brought into close surface contact with the outer peripheral surface of the conductor 2. As shown in FIG. 5, the neutralizing rubber 3 covers the installation surface 6 of the conductor 2 in a substantially flat shape. The neutralizing rubber 3 has six holes 3 a communicating with the holes 2 a of the conductor 2 at six locations.

  As shown in FIG. 5, an iron pop nut 11 with a female screw cut is inserted in advance into the hole 2a of the conductor 2 and the hole 3a of the static elimination rubber 3, and the core 2 is formed using a mandrel or the like. It is concluded to.

  As shown in FIG. 4, caps 4 made of the same material as the neutralizing rubber 3 are attached to both ends of the main body 5. As shown in FIG. 6, the cap 4 seals the openings of the neutralizing rubber 3 and the conductor 2 and covers both edge portions of the conductor 2. The cap 4 is formed with a recessed portion 4a along the longitudinal direction of the conductor 2 so that the end edges of the conductor 2 and the neutralizing rubber 3 can be inserted. The edge portions of the conductor 2 and the neutralizing rubber 3 are fitted and held in the recessed portion 4a, and are covered so that at least the edge portion of the conductor 2 is not exposed.

  The recessed portion 4a has a stepped portion 4b formed so that the neutralizing rubber 3 covering the installation surface 6 is opened to the flange surface 121a side. The depth of the stepped portion 4b from the flange surface 121a is such that when the end edges of the conductor 2 and the neutralizing rubber 3 are fitted into the cap 4, the surface of the neutralizing rubber 3 that covers the installation surface 6 is the flange of the cap 4 That is, the surface can be smoothly and continuously arranged on the lower surface of the surface 121a without a step.

  In the vicinity of each end edge portion of the lead core 2, a locking hole 2b penetrating the wall portion 7a is formed. The neutralizing rubber 3 is formed with a locking hole 3b communicating with the locking hole 2b. A screw hole 4c that opens toward the flange surface 121a is formed in the stepped portion 4b. The screw hole 4c is formed at a position communicating with the locking hole 2b and the locking hole 3b when the end edges of the conductor 2 and the neutralizing rubber 3 are fitted into the cap 4. An insert nut 12 in which a female screw has been cut in advance is embedded in the screw hole 4c. With the locking hole 2b, the locking hole 3b, and the screw hole 4c communicating, the countersunk screw 13 having a head portion that does not protrude from the locking hole 2b and the locking hole 3b is fastened to the insert nut 12. When the head of the insert nut 12 is confined in the locking hole 2b and the locking hole 3b, the movement of the cap 4 in the insertion / removal direction is restricted, and the cap 4 extends from the edge of the conductor 2 and the neutralizing rubber 3. Is prevented from falling.

  As shown in FIG. 5, the main body 5 is in surface contact with the flange surface 121 a via the neutralizing rubber 3 covering the installation surface 6, and the hole 2 a of the conductor 2 and the hole 3 a of the neutralizing rubber 3 are arched. It is mounted so as to communicate with 121 bolt holes 122. A button bolt 9 with a hexagonal hole is inserted into the bolt hole 122, the hole 2 a of the conductor 2, and the hole 3 a of the static elimination rubber 3 from the back surface 121 b side of the arch part 121. By locking the body 9b of the button bolt 9 with the pop nut 11, the main body 5 is tightly fixed to the flange surface 121a. A washer 10 is interposed between the head 9 a of the button bolt 9 and the back surface 121 b of the arch part 121. As shown in FIG. 3, each main body portion 5 is fixed to the arch portion 121 by three button bolts 9.

  When attaching the main body 5 to the arch part 121, as shown in FIG. 5, the button bolt 9 is inserted from the back surface 121 b side of the arch part 121, and the bolt hole 122, the hole 2 a of the conductor 2, and the neutralizing rubber 3 The pop nut 11 is locked through the hole 3a. When the main body 5 is removed from the arch 121, the button bolt 9 is unlocked by the pop nut 11, and the button bolt 9 is connected to the hole 2a of the conductor 2, the hole 3a of the neutralizing rubber 3, and the bolt hole. Remove from 122.

  As shown in FIG. 3, the ground part 150 includes a flexible synthetic rubber hollow tube 160, a cord 153 disposed so as to pass through the hollow tube 160, and a terminal connected to one end of the cord 153. And a grounding rod 152 connected to the other end of the cord 153.

  As shown in FIG. 3, the terminal portion 151 is connected to the button bolt 9 positioned at the lowest position among the three button bolts 9 that fix the main body portions 5. The terminal portion 151 may be connected to at least one of the plurality of button bolts 9. The hollow tube 160 extends from the vicinity of the button bolt 9 to which the terminal portion 151 is connected to the vicinity of the slider support 110 along the back surface 121b of the arch portion 121 and the lower portion of the pipe body 120e, and is attached to the pipe body 120e. It is fixed by bonding. In the present embodiment, one hollow tube 160 is shared by two static elimination units 1. 7 is a cross-sectional view in the direction of the arrows along the line CC in FIG. As shown in FIG. 7, a through hole 111 is formed in the slider post 110 at a portion close to the hollow tube 160, and the through hole 111 communicates with the ground surface through the hollow interior of the slider post 110. The ground bar 152 is embedded in the ground below the slider support 110.

  As described above, the main body 5 of the static elimination unit 1 has the conductor 2 having different conductivity as shown in FIGS. 5 and 6 in order to remove static electricity charged on the human body sliding down the pipe slider 107. It has a two-layer structure with the neutralizing rubber 3 and a two-layer structure with the conductor 2 and the cap 4. When a user who is charged with static electricity comes into contact with the static elimination rubber 3, the static electricity is released from the static elimination rubber 3 to the lead core 2, and further escaped from the lead core 2 to the grounding part 150 via the button bolt 9. Will be expelled into the ground.

  Next, a specific usage mode of the general play equipment 100 will be described. FIG. 8 is a partial cross-sectional view of the general play equipment 100 showing how the user slides down the pipe slider 107. The user enters the pipe slider 107 from the slider inlet 112 shown in FIG. 2 and starts downhill. As shown in FIG. 8, the inclination angle of the pipe slider 107 gradually decreases in the vicinity of the slider outlet 113, so that the user naturally stops before reaching the slider outlet 113. The user who has reached the vicinity of the slider exit 113 moves forward to the slider exit 113 in a middle waist posture and returns to the ground surface so as not to hit the head against the inner peripheral surface of the pipe slider 107. Since the posture of the middle waist is unstable and difficult to move forward, the user performs an operation of holding the arch portion 121 provided at the slider outlet 113 and supporting the posture with the force of the arm.

  On the left and right positions of the arch portion 121, the main body portions 5 of the pair of charge removal units 1 are arranged along a flange surface 121a that is easy for a user to grip. Since the pair of main body parts 5 are long bodies that occupy at least half of the entire circumference of the arch part 121, the user who has finished sliding the pipe slider 107 inevitably and unconsciously contacts the static elimination unit 1. By disposing the static elimination unit 1 at a position where the user can easily contact, static electricity charged to the user can be reliably and easily removed.

  As shown in FIG. 6, the metal core 2 constituting the main body 5 is covered with the resin neutralizing rubber 3 and the cap 4 and is not exposed to the outside, so that the user contacts the core 2. Injuries or discharge phenomena can be prevented. As shown in FIG. 5, the main body 5 is in surface contact with the arch portion 121 through the charge-removing rubber 3 that protects the installation surface 6, so that generation of a gap is suppressed. In addition, when bending and forming the conducting core 2, it is preferable that the gap be within the installation surface 6. Further, the outer peripheral shapes of the core 2, the neutralizing rubber 3, and the cap 4 constituting the main body 5 are rounded as shown in FIGS. Since the main body 5 has a structure that reduces the gap and has a rounded shape, the risk that the user may pinch or damage the hand is reduced.

  Since the neutralizing rubber 3 and the cap 4 that are in contact with the user have semiconductive electrical characteristics, static electricity can be smoothly removed from the user without causing a discharge phenomenon. The static electricity removed from the user is quickly expelled from the neutralization rubber 3 in FIG. 5 to the ground through the conductor 2 and the ground portion 150 in FIG. Thus, the static elimination unit 1 can remove the static electricity charged to the user safely and quickly.

  As described above, when the static eliminator unit 1 of the present embodiment is used, when the main body 5 is attached to the pipe slider 107 (specifically, the flange surface 121a of the arch 121), it is connected to the ground 150. It is only necessary to insert the button bolt 9 into the holes 2a, 3a (specifically, the pop nut 11). When the main body 5 is removed from the pipe slider 107, the button bolt 9 connected to the grounding portion 150 is used. Is simply removed from the holes 2a and 3a. Therefore, the static elimination unit 1 can be attached to and detached from the general play equipment 100 having the pipe slider 107 formed of a synthetic resin (here, polyethylene) without causing much labor for the worker and suppressing the manufacturing cost. it can.

  Further, the main body 5 has a two-layer structure in which the conductor 2 is encapsulated by the neutralizing rubber 3 (and the cap 4) from the outer peripheral side. Since the metal core 2 is not exposed to the outside of the main body 5, the user can contact only the resin neutralizing rubber 3 (and the cap 4). Since the user does not contact the metal core 2, it is possible to prevent the user from being injured or discharged. Since the user contacts the static elimination rubber 3 (or cap 4) having elasticity, the user can safely and gently remove static electricity.

  Moreover, since the conducting core 2 is a cylindrical body having a hollow inside, the static elimination unit 1 can be reduced in weight. Furthermore, since the outer peripheral surface of the conductor 2 is covered with the neutralizing rubber 3, and both ends thereof are covered with the cap 4, the conductor 2 is exposed to the outside by a simple work process compared to the conventional coating or the like. The static elimination unit 1 which is not exposed can be manufactured.

  Moreover, since the substantially flat installation surface 6 is formed in the main-body part 5, the main-body part 5 can be fixed reliably by making this installation surface 6 surface-contact with the pipe slider 107. FIG. Further, since the holes 2 a and 3 a are formed in advance so as to correspond to any of the plurality of bolt holes 122 formed in the pipe slider 107, the button bolt 9 is attached when the main body 5 is attached to the pipe slider 107. There is no need to drill the bolt hole 122 for mounting in the pipe slider 107 each time, and the mounting operation of the main body 5 can be performed quickly and accurately.

  Further, since the main body 5 is curved in advance along the flange surface 121a of the arch portion 121 of the pipe slider 107, the main body portion is formed on the flange surface 121a of the arch portion 121 that does not interfere with the user sliding down. 5 can be attached accurately. Moreover, since the installation surface 6 of the main body part can be attached along the flange surface 121a of the arch part 121, even if the main body part 5 is attached, it can be reliably fixed without impairing the design of the general play equipment 100. .

  Next, with reference to FIG.9 and FIG.10, the comprehensive playground equipment 200 which concerns on the 2nd Embodiment of this invention is demonstrated. The general playground equipment 200 of the second embodiment has the same structure as that of FIG. 1, but as shown in the partially enlarged view in the vicinity of the side surface of the pipe body 120e of FIG. 9, the neutralization unit 1 of the first embodiment and Includes a charge eliminating unit 201 having a different structure.

  As shown in FIG. 9, the static eliminator unit 201 of this embodiment includes a main body portion 5, three button bolts 9, and a ground portion 150. In the present embodiment, two static elimination units 201 share one earthing unit 150. As shown in the front view of FIG. 10, the ground portion 202 includes a curved column 210, a support column 211, a ground wire 212, a hexagon bolt 213, a ground rod 214, and a mounting plate 215.

  The curved support column 210 has a long cylindrical shape, and is curved so that the longitudinal direction forms a part of an arc larger than the cross-sectional diameter of the pipe body 120e in FIG. Linear portions are bent at both ends of the curved support column 210. The linear portion of the curved column 210 is orthogonal to a plane along the bending direction of the curved column 210. As shown in FIG. 10, the bending column 210 is arranged with the bending convex direction facing downward. The two support columns 211 have a long cylindrical shape, extend downward from the center in the longitudinal direction of the curved column 210, and are coupled in the horizontal direction by a beam-shaped plate material near the lower end. The cavities inside the two support columns 211 are connected to the cavities inside the curved column 210. An introduction hole (not shown) is formed near the lower end of one support column 211. The introduction hole is formed so that the hexagon bolt 213 can be locked. The ground wire 212 is connected to the upper end portion of the ground rod 214 at one end, is inserted into the support column 211 from the introduction hole of the support column 211, branches near the connection portion between the support column 211 and the curved column 210, and the curved column 210 It extends from the opening at both ends to the outside. The ground wire 212 is fixed to the support column 211 by a hexagon bolt 213 in the introduction hole. At both ends of the curved support column 210, a mounting plate 215 formed of a plate material extending in a flange shape and having an outer edge shape forming a square is integrally formed with the curved support column 210. Each mounting plate 215 has a ground mounting hole 216 penetrating in the thickness direction.

  However, for example, if the cord 153 connected to the terminal portion 151 is joined to the support column, the ground wire 212 is not necessarily inserted into the support column 211 from the introduction hole of the support column 211. This is because in this case, the support column 211 itself functions as a ground. In general, when the support column 211 is made of iron, it is generally provided with a rust preventive coating or the like. At this time, at least a portion to which the cord 153 is joined is made of, for example, stainless steel from the viewpoint of rust prevention. Etc. are preferable.

  As shown in FIG. 9, each mounting plate 215 is fixed to the back surface 121 b of the arch part 121 by each bolt 9 at the lowermost end. The ends of the ground wire 212 led out from both ends of the curved column 210 are fixed so as to be conducted by the bolt 9. The ground portion 202 is fixedly supported by a support column 211 fixed to the ground. The ground bar 214 is buried in the ground.

  When the user who slides down the pipe slider 107 contacts the main body 5 of the static elimination unit 201, static electricity charged to the user escapes to the main body 5. The static electricity that has escaped to the main body portion 5 is conducted through the bolt 9, the ground wire 212, and the ground bar 214 in this order, and is discharged to the ground.

  According to the earthing part 202 of this embodiment, static electricity can be discharged without using the support | pillar 110 of the general playground equipment 200 by arrange | positioning the earth | ground wire 212 in the support support | pillar 211 standingly arranged on the ground surface. Since the earthing part 202 includes the original support column 211 and does not use the play column 110, a member for routing the ground wire 212 to the column 110 of the general play unit 200 can be eliminated. Since the ground wire 212 of this embodiment is disposed in the curved support column 210 and the support support column 211, it is possible to prevent the ground wire 212 from being disconnected due to an external factor.

  In addition, the earth part 202 is not limited to the aspect mentioned above, For example, the earth part 220 as shown in FIG. 11 may be sufficient. The curved support column 210 and the support support column 211 that constitute the ground portion 302 are formed of a conductive metal material. In the ground portion 220 in FIG. 11, the ground wire 212 is not inserted into the curved support post 210 and the support support post 211, but is only conducted to the support support post 211 by the hexagon bolt 213. The ground wire 212 is not connected to the button bolt 9 shown in FIG. 9, and the mounting plate 216 is electrically connected to the button bolt 9.

  When the user who slides down the pipe slider 107 contacts the main body 5 of the static elimination unit 201, static electricity charged to the user escapes to the main body 5. The static electricity that has escaped to the main body 5 is sequentially conducted through the bolt 9, the mounting plate 215, the curved support post 210, the support support post 211, the hexagon bolt 213, the ground wire 212, and the grounding rod 214 to be expelled into the ground.

  According to the ground part 220 of the present embodiment, the ground wire 212 is connected to the metal support post 211 standing on the ground surface, so that static electricity can be discharged without using the support 110 of the general play equipment 200. it can. Since the earthing part 220 includes the original support column 211 and does not use the play column 110, a member for routing the ground wire 212 to the column 110 of the general play unit 200 can be eliminated. According to the grounding part 220, the ground wire 212 is not inserted into the curved support post 210 and the support support post 211, so that the distance around the ground wire 212 can be shortened.

  As described above, if the static eliminator unit 201 of the present embodiment is used, when the main body portion 5 is attached to the pipe slider 107 (specifically, the flange surface 121a of the arch portion 121), the ground portion 150 is connected. It is only necessary to insert the button bolt 9 into the holes 2a and 3a (specifically, the pop nut 11). When the main body 5 is removed from the pipe slider 107, the button bolt 9 connected to the ground 202 is connected. Is simply removed from the holes 2a and 3a. Therefore, the static eliminator unit 201 can be attached to and detached from the general play equipment 200 having the pipe slider 107 formed of a synthetic resin (here, polyethylene) without causing much labor for the operator and suppressing the manufacturing cost. it can.

  By the way, in said embodiment, the static elimination unit 1 and the static elimination unit 201 correspond to the "static elimination member for playground equipment" of this invention. The conductive core 2 corresponds to the “conductive core portion” of the present invention. The neutralizing rubber 3 and the cap 4 correspond to the “semiconductive protection part” of the present invention. The hole 3a of the static elimination rubber 3 corresponds to the “mounting hole” of the present invention. The button bolt 9 corresponds to the “mounting bracket” of the present invention. The wall portions 7a to 7d of the conductor 2 correspond to the “wall portion” of the present invention. The hole 2a of the conductor 2 corresponds to the “conductive hole” of the present invention. The pop nut 11 and the combination of the pop nut 11 and the button bolt 9 correspond to the “locking means” of the present invention. The ground portion 150 and the ground portion 202 correspond to the “ground member” of the present invention. The neutralizing rubber 3 corresponds to the “wall protection unit” of the present invention. The cap 4 corresponds to the “cap portion” of the present invention. The installation surface 6 corresponds to the “installation surface” of the present invention. The flange surface 121a corresponds to the “first surface” of the present invention. The plurality of bolt holes 122 correspond to “holes opened in the first surface” to which the static electricity removing member for playground equipment of the present invention is attached. The arch part 121 corresponds to the “frame-like part” of the present invention.

  In addition, although this invention is described in said preferable embodiment, this invention is not restrict | limited only to it. Various embodiments are possible without departing from the spirit and scope of the invention.

  For example, in this embodiment, the pipe slider 107, which is an internally sealed slide whose cross section orthogonal to the downhill direction forms a perfect circle, is illustrated as the downhill formed of synthetic resin. However, the cross section orthogonal to the downhill direction is illustrated. May be a U-shaped slide or an upwardly open slide having a U-shape opened upward.

  Needless to say, the shape, size, attachment position, and the like of the static elimination unit 1 and the static elimination unit 201 can be appropriately changed according to the downhill, and the number attached to one downhill is arbitrary. For example, when the downhill is an upward-opening slide, the linear static elimination unit 1 may be provided in the handrail portion.

Further, Shirubeshin 2 is not limited to those made of aluminum, the electrical characteristics of the conductors (e.g., 10 ² to 10 ³ [Omega] cm volume resistivity of) may be a metal material having, for example, iron Ya It may be configured. The static elimination rubber 3 is not limited to an antistatic material in which various conductive agents are blended with synthetic rubber, but has semiconductive electrical characteristics (for example, 10 ⁵ to 10 ⁸ Ωcm (more preferably 10 ⁷ Ωcm)). Any resin material having a volume resistivity) may be used.

  The mounting bracket for attaching the main body 5 to the pipe slider 107 is not limited to the button bolt 9, and is connected to the conductor 2 in a state of being inserted into the hole 3 a of the static elimination rubber 3 (that is, It suffices to have a structure that can be electrically connected to the conductor 2. For example, in addition to rivets, bolts, pins, etc. that are fitted into the holes 2a formed in the conductor 2, the members are welded or bonded to the conductor 2, or the notches and protrusions formed in the conductor 2 It may be a member to be engaged. However, the mounting bracket needs to be at least a metal conductor, and needs to be connected so that the ground portion 150 and the ground portion 202 can be electrically conducted. The locking means is not limited to the pop nut 11. For example, nuts having various shapes may be used, and screw grooves formed in the conductor holes may be used.

It is a typical front view of the comprehensive playground equipment concerning one embodiment of the present invention. FIG. 2 is an enlarged perspective view of the general play equipment in the vicinity of the pipe slider of FIG. 1. FIG. 2 is a partial side view of the general play equipment in the vicinity of the slider exit of FIG. 1. It is the partial front view of the synthetic | combination playground equipment which looked at the slider exit of FIG. 1 in front. FIG. 4 is a cross-sectional view in the direction of the arrows along line AA in FIG. 3. It is arrow direction sectional drawing in the BB line of FIG. FIG. 4 is a cross-sectional view in the direction of the arrow in the CC line of FIG. 3. It is a fragmentary sectional view of the comprehensive playground equipment which illustrates a concrete usage mode. It is a partial side view of the comprehensive playground equipment according to another embodiment of the present invention. FIG. 10 is a front view of the ground portion of FIG. 9. FIG. 10 is a front view (modified example) of the ground portion of FIG. 9.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Static elimination unit 2 Conductor core 2a Hole 2b Locking hole 3 Static elimination rubber 3a Hole 3b Locking hole 4 Cap 4a Recessed part 4b Stepped part 4c Screw hole 5 Body part 6 Installation surface 7a-7d Wall part 9 Button bolt 9a Head Part 9b Body 10 Washer 11 Pop nut 12 Insert nut 13 Countersunk screw 100 General play equipment 101 Post 102 Floor plate 103 Roof 104 Decoration panel 104a Opening part 105 Handrail 106 Vinylon net 106
107 Pipe slider 109, 110 Slider column 111 Through hole 112 Slider inlet 113 Slider outlet 114 Downhill surface 120a-120e Pipe body 121 Arch portion 121a Flange surface 121b Back surface 122 Bolt hole 150 Ground portion 151 Terminal portion 152 Ground rod 153 Cord 160 Hollow tube 200 General Play Equipment 201 Static Removal Unit 202 Grounding Section 210 Curved Column 211 Support Column 212 Ground Wire 213 Hexagonal Bolt 214 Ground Rod 215 Mounting Plate 216 Ground Mounting Hole

Claims (6)

A static electricity removing member for playground equipment that is attached to a playground equipment having a runway formed of a synthetic resin and removes static electricity from a human body that slides down the runway,
A conductive core formed of a long metal;
A semiconductive protective part formed of a synthetic resin-containing semiconductive material having a volume resistivity higher than that of the conductive core part, and enclosing and covering the conductive core part so as to be in contact with the outer peripheral surface of the conductive core part. The semiconductive protective part having a mounting hole for exposing the conductive core part;
A ground member;
A mounting bracket for electrically connecting the grounding member to the conductive core through the mounting hole, wherein the mounting is engaged with the conductive core and removably mounts the conductive core on the downhill. Metal fittings,
A static eliminating member for playground equipment comprising: The static elimination member for playground equipment, wherein the conductive core portion has a cylindrical wall portion, and the wall portion is formed with a conductive hole communicating with the mounting hole,
Furthermore, provided with a locking means for locking the mounting bracket inserted through the mounting hole and the conductive hole,
The static eliminating member for playground equipment according to claim 1. The semiconductive protection part has a wall part protection part that covers the wall part in a cylindrical shape, and cap parts attached to both ends of the wall part,
The static eliminating member for playground equipment according to claim 2. The downhill having a frame-like portion that defines at least a part of the outer edge shape, the first surface having a substantially planar shape disposed in at least a part of the frame-like portion, and an opening in the first surface The static electricity removing member for playground equipment attached to the downhill with a hole formed,
The conductive core has an installation surface formed in a substantially planar shape,
The semiconductive protection part has a substantially planar installation surface protection part that covers the installation surface,
The mounting hole penetrates the installation surface protection portion and is disposed at a position communicating with the hole portion when the installation surface is placed on the first surface.
The static electricity removal member for playground equipment as described in any one of Claims 1-3. The static elimination member for playground equipment attached to the downhill road where the substantially planar portion has a curved portion,
The installation surface has a shape along the curved portion,
The static eliminating member for playground equipment according to claim 4. A playground equipment comprising a downhill formed of a synthetic resin and having an outer edge shape defined by a frame-shaped portion, and the static electricity removing member for playground equipment according to any one of claims 1 to 5,
The playground equipment, wherein the static electricity removing member for playground equipment is attached to the frame-like portion by the mounting bracket.