JPH0564204U - Stadium curb - Google Patents

Abstract

(57) [Summary] [Purpose] Make it possible to automatically change the location of curbstones in and out of the stadium by pneumatic operation. [Structure] The curb body 1 can be vertically retracted with respect to the groove frame 2. Below the curbstone body 1 is an air tube 3, and the air tube 3 expands and contracts due to an air supply / exhaust operation. The curb body 1 is pulled downward by a tension spring 5. In order to make the curb body 1 move in and out smoothly, the groove frame 2
A guide plate 6 is attached to. The range of movement of the curbstone body 1 is restricted by the stopper 7.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement of a curb provided at an inner boundary of a track runway in an athletic field or the like.

[0002]

[Prior Art]

 It has been already proposed that the curbs on the stadium be freely retractable from the groove in the ground. For example, Japanese Utility Model Publication No. 60-5045 proposes a type in which a curb is turned inside out to be immersed in a groove, and Japanese Utility Model Application No. 2-406927 proposes a curb with a protruding state and an immersed state. It is proposed that it can be supported at the height of stages.

[0003]

[Problems to be solved by the device]

 However, in all of the above-mentioned conventional types, it is necessary to manually perform the operation of retracting and retracting the curb, which requires a great deal of labor. For example, if one curb with a length of 2 m is used, there will be 200 curbs on a track with a circumference of 400 m, and it will be a great effort to appear and disappear each time the competition is changed. Is. In addition, curbing operations may have to be performed during the competition, which hinders the progress of the competition.

In view of such a point, the present invention is to provide a curb for a stadium capable of automatically performing all of the curving operations of the curb.

[0005]

[Means for Solving the Problems]

 The technical means of the stadium curb of the present invention is a curb body, a groove frame fixedly installed in a groove formed on the ground surface, an inflatable and inflatable air tube arranged at the bottom of the groove frame, The curb body is composed of an air supply and exhaust device for the air tube, and the curb body can move up and down with respect to the groove frame, and the curb body can be moved in a protruding manner by the expansion of the air tube.

Further, the retractable movement of the curb body may be forcibly performed by a tension spring. Further, a guide plate may be attached to the side wall of the groove frame so that the curb body can be smoothly moved in and out. Alternatively, a long hole may be provided in the side wall of the curb body, and a projecting engagement body fixed to the groove frame may be fitted into the long hole to restrict the range of movement of the curb body by the long hole.

Further, a bolt is provided so as to penetrate through the bottom wall of the curb body, the lower end of the bolt is screwed and fixed to the groove frame bottom wall, and a nut for collision is screwed on the upper portion of the bolt to fix the nut. It is also possible to adjust the protruding height of the curb body by changing the position. Further, the guide plate may be attached to the side wall of the groove frame so as to be movable in position so that the lateral position of the curb body can be adjusted.

A roller may be attached to the curb body, and the roller may be rolled up and down along the inner wall surface between the groove frames. Further, it is possible to open and close the groove lid. Alternatively, one of the groove frames may be automatically adjusted for position.

[0009]

[Action]

 In the curb for a stadium of the present invention, the curb body is separate from the groove frame and can be vertically retracted from the groove frame. The air tube swells when air is supplied and shrinks when exhausted. When the air tube swells, the curb body is pushed up and moves protruding. Then, the curb body is held in a protruding state by keeping the air tube expanded. When the air tube is shrunk, the curb body moves in and out of the groove frame.

If a tension spring is used, the curbstone body can be reliably moved in and out. In addition, if a guide plate is attached, the frictional resistance during movement of the curb body will be reduced, and the curbstone will appear smoothly. If the movement range of the curb body is restricted by the long hole mechanism, the upper limit protruding position and the lower limit immersion position can be accurately determined.

In the case where the upright bolt type stopper is used, when the position of the collision nut is adjusted, the upper limit position of the protrusion of the curb body changes, and the height can be adjusted in the protruding state. If a guide plate with adjustable position is used, the position of the curb body in the lateral direction can be adjusted.

With a roller, the curb can be raised and lowered very smoothly. If the groove frame is openable and closable, it is convenient for repairs. Furthermore, if one of the groove frames is positionally adjustable, the distance between the groove frames can be easily adjusted.

[0013]

【Example】

 An embodiment of a stadium curb of the present invention will be described with reference to the drawings. 1 is a curb body, and 2 is a groove frame. The groove frame 2 is fixedly installed in the groove provided in the ground, and the curb body 1 is provided so as to be movable in and out with respect to the groove frame 2 in the vertical direction. It is preferable to use a rust preventive material such as stainless steel for the curb body 1 and the groove frame 2.

Reference numeral 3 denotes an air tube, which is arranged below the curb body 1. A fire hose is suitable as the air tube 3. A main pipe 4 is connected to the air tube 3 to supply and exhaust air. When the air tube 3 expands, the curb body 1 is pushed up and moves in a protruding manner. On the contrary, when the air tube 3 is shrunk by the exhaust operation, the curb body 1 moves in and out. In order to promote this immersive movement, pulling bars 5 are provided at both longitudinal ends of the curb body 1, and the curb body 1 is forcibly pulled down by the force of this spring.

A guide plate 6 is attached to the inner surface of the groove frame 2 in order to smoothly move the curbstone body 1 in and out. As a material for the guide plate 6, a synthetic resin having a small friction coefficient, for example, Solujour (trade name) is suitable. The guide plates 6 are attached to the inner surface of the groove frame 2 at appropriate intervals according to the length and weight of the curb body 1.

A stopper 7 is provided for positioning upper and lower limits of the movement of the curbstone body 1. As the stopper 7, in the illustrated example, a structure in which a bolt 8 is fixedly installed so as to be bridged between the groove frames 2 and a long hole 9 is provided in the curb body 1 and is fitted with the bolt 8 is adopted. There is. Therefore, the curb body 1 can move up and down only by the length of the long hole 9, the upper and lower limit positions are determined, and the upper surface of the curb body 1 is 5 cm higher than the ground surface (GL) at the time of protrusion, and the ground surface at the time of immersion. (GL) and just flush. At least two stoppers 7 are provided near both ends of the curb body 1.

Reference numeral 10 denotes a drainage hole provided in the curb body 1, through which rainwater accumulated on the ground surface is drained into the groove. The curbstone body 1 has a length of about 2 m, and the curbstone bodies 1 are arranged in series for a required length and used.

FIG. 4 shows a retracting / operating mechanism for supplying / exhausting air to / from the curb. Reference numeral 11 denotes an air source unit, which includes an air compressor 12, a filter 13, a regulator 14, and the like. The air compressor 12 normally produces high-pressure air having a pressure of about 5 to 7 kg, and the regulator 14 reduces the pressure to about 2 kg for use. In addition, it is preferable to attach an air tank to the air compressor 12.

Reference numeral 15 denotes an operation unit, which includes a plurality of manual valves 16. In the illustrated example, a track having a circumference of 400 m is divided into four zones of about 100 m each, and a valve 16 is provided for each zone, so that the curbstone can be operated for each zone. The manual valve 16 is connected to a plurality of air valves 18 (10 in the illustrated example) of the main body 19 by a signal pipe 17. The air valve 18 is provided at the curb installation location and switches the main pipe 4.

The air valve 18 is connected to the air tube 3 of the curb by ventilation. In addition, one air valve 18 handles a plurality of air tubes 3 (five in the illustrated example). That is, when one air valve 18 is opened, a plurality of (five) curbs are projected at the same time. Further, in the illustrated example, since the manual valve 16 is connected to the ten air valves 18, when the manual valve 16 is opened, 10 × 5 = 50 curbs simultaneously project. Since the curb is 2 m, the curb in the area of 100 m projects at the same time.

The curbstone immersion operation is performed by switching the manual valve 16 to the closed state. By this operation, the signal air supply to the air valve 18 is cut off, the air valve 18 is automatically switched to "exhaust", the air is exhausted from the air tube 3, and the curb body 1 descends. Since the curb body 1 is acted by the force of the pulling spring 5, the exhaust and the descent are smooth.

FIG. 5 shows another embodiment, in which the position of the curb body 1 can be finely adjusted. In this embodiment, the bolt 21 of the stopper 20 is provided in the vertical direction, the lower end of the bolt 21 is screwed into the nut 22 fixed to the bottom wall of the groove frame 2, and the bolt 21 is attached to the lower surface of the curb body 1. A lock nut 23 for impact is screwed and fixed to the upper portion of the bolt 21 so as to penetrate therethrough. Therefore, the upper limit position of the movement of the curb body 1 is determined by the position of the lock nut 23, and by moving the position of the lock nut 23 up and down, it is possible to adjust the height when the curb protrudes.

Reference numeral 26 denotes a nut lid attached to the upper surface of the curb body 1, and the nut lid 26 is opened when the bolt 21 is rotated or removed. A nut lid 27 of the same type is also attached to the position of the extension spring 5. Then, the curb body 1 can be freely taken out from the groove frame 2 by removing the bolt 21 and the extension spring 5.

Further, in the embodiment shown in FIG. 5, the guide plate 25 is provided for position adjustment in the horizontal direction with respect to the groove frame 2. Therefore, the position of the curb body 1 can be adjusted in the lateral direction by moving the position of the guide plate 25, the centering at the time of construction can be accurately performed, and the curb can be positioned strictly. it can.

The detailed structure of the guide plate 25 is shown in FIG. The bolt 28 is screwed to the groove frame 2. Reference numeral 29 is an auxiliary nut fixed to the groove frame 2, and 30 is a lock nut. Reference numeral 31 is a backing plate of the guide plate 25, and a head of a bolt 28 is rotatably fitted in a stepped hole 32 formed in the backing plate 31. Reference numeral 33 is a hole provided in the guide plate 25 for operating a bolt. Therefore, if the lock nut 30 is loosened and the bolt 28 is rotated, the bolt 28 moves in the axial direction and the position of the guide plate 25 can be adjusted. This adjustment operation is carried out before the curbstone body 1 is assembled during construction, and is used for absorbing construction errors and centering.

FIG. 9 shows still another embodiment. In this embodiment, a roller 40 is used in place of the guide plate of the above embodiment in order to make the curb body 1 move up and down more smoothly. That is, a plurality of rollers 40 are attached to both sides of the lower part of the curb body 1, and the rollers 40 move up and down in contact with the inner surface of the edge frame 2. Further, since guide ridges 41 are formed on the inner surface of the edge frame 2 and the roller 40 moves up and down along the guide ridges, the lateral displacement of the roller 40 (curbstone body 1) during the up and down movement. Can be prevented.

In the embodiment of FIG. 9, the groove lids 42 and 43 can be freely attached and detached by removing the bolts 44, which is convenient for repairs and the like. Further, since one groove frame 2a is fixed to the bolt 45 with a long hole, the fixing position can be finely adjusted, and the interval between the groove frames 2 and 2a can be adjusted and the protruding position of the curb body 1 can be finely adjusted. It can be performed.

Further, in the embodiment of FIG. 9, another groove 46 is provided next to the curb sinking / retracting groove, and the main pipe 4 for air supply and the like are passed therethrough. In addition, 47 is a bolt for determining the installation position when the groove is constructed.

It should be noted that the present invention is not limited to the above-described embodiment, and, for example, the structures of the curb body 1 and the groove frame 2 can be freely modified, and the air tube 3 can be supplied or discharged. It is also possible to perform control by a solenoid valve method.

[0030]

[Effect of the device]

 Since the curbstone of the present invention can perform the work of appearing and disappearing automatically by remote control, the curbstone can be moved extremely easily and in a short time when the competition changes. In addition, since the operation is performed by the air system, the structure is simpler and the maintenance is easier than the hydraulic system.

According to the second aspect of the present invention, the action of the pulling spring allows the curb body to move in and out reliably and in a short time.

According to the third aspect of the present invention, the presence of the guide plate makes the curb body main body move in and out smoothly.

According to the fourth aspect, the positions of the curb body at the time of projecting and when the curb body is immersed are accurately determined.

According to the fifth aspect, the height can be adjusted when the curb body is projected.

According to the sixth aspect, the position of the curb body in the lateral direction can be adjusted, and the construction error can be easily absorbed.

According to the seventh aspect, since the contact portion is the roller, the frictional resistance is small, and the curbstone main body can be projected and retracted very smoothly.

According to the eighth aspect, it is convenient for repair.

According to the ninth aspect, it is possible to easily prevent backlash and perform positioning.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of an embodiment of a curb of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a sectional view taken along line BB of FIG.

FIG. 4 is a piping diagram for air control.

FIG. 5 is a vertical cross-sectional view of another embodiment.

6 is a cross-sectional view taken along the line CC of FIG.

FIG. 7 is a sectional view taken along line DD of FIG.

8 is a partially enlarged sectional view of FIG.

FIG. 9 is a sectional view of still another embodiment.

[Explanation of symbols]

 1 Curb body 2 Groove frame 3 Air tube 4 Main pipe 5 Extension spring 6 Guide plate 7 Stopper 11 Air source part 12 Air compressor 15 Operating part 16 Manual valve 17 Signal pipe 18 Air valve 19 Main part 20 Stopper 21 Bolt 22 Nut 23 Lock nut 25 Guide plate 26, 27 Nut lid 28 Bolt 31 Backing plate 40 Roller 41 Guide unevenness 42, 43 Groove lid 44 Bolt 45 Bolt

Claims (9)

[Scope of utility model registration request] 1. A curb body, a groove frame fixedly installed in a groove formed on a ground surface, an inflatable and inflatable air tube arranged at a bottom portion of the groove frame, and an air tube supply / exhaust device. The curb body is a curb for a stadium in which the curb body is vertically retractable with respect to the groove frame, and the curb body is caused to project and move by the expansion of the air tube. 2. The curb for a stadium according to claim 1, wherein a tension spring is provided between the curb body and the groove frame, and the curb body is always biased in the immersion direction. 3. The stadium curb according to claim 1, wherein a guide plate is attached to a side wall of the groove frame, and a side surface of the curb body is abutted and supported by the guide plate. 4. The curb main body has a vertical elongated hole in a side wall thereof, a protruding engaging member fixed to the groove frame is fitted into the elongated hole, and a movement range of the curb main body is restricted by the elongated hole. Curb for the stadium listed. 5. A bolt is provided upright so as to penetrate through the bottom wall of the curb body, the lower end of this bolt is screwed and fixed to the bottom of the groove frame, and a nut for collision is screwed onto the upper part of the bolt. ,
The stadium curb according to claim 1, wherein the protruding height of the curb body can be adjusted by changing the position of the nut. 6. The stadium curb according to claim 3, wherein the guide plate is attached to the groove frame so as to be movable in position, and the lateral position of the curb body can be adjusted. 7. The curb for a stadium according to claim 1, wherein a roller is attached to the curb body, and the roller is rolled up and down along the inner wall surface between the groove frames. 8. The stadium curb according to claim 7, wherein the groove lid is openable and closable. 9. The stadium curb according to claim 7, wherein one of the groove frames is positionally adjustable.