JP3802522B2 - Temporary gate - Google Patents

Description

  The present invention relates to an improvement of a temporary gate at a construction site or the like provided at an entrance for a construction vehicle at the construction site or the like.

  As a conventional temporary gate of this type, panels that are foldable on both sides of a plurality of traveling rods are supported so as to be openable and closable by support beams installed between upper ends of a pair of left and right columns. Such a structure is widely known.

Also, as this type of gate, if the strong wind is received when the panel is closed, the lower end of the panel will swing and become dangerous, so as a means to prevent such danger, By keeping the steady-state wire between the lower ends slightly above the ground without loosening, and mooring the ring provided at the lower end of the panel to the wire, the closed panel will not be shaken by strong wind It has a simple structure.
Shoko 58-13033

On the other hand, another structure of this type of gate is to embed a metal fitting such as channel steel in the ground of the sill so that the lower end of the closed panel can be moored to the sill. Thus, there is known a gate structure in which a rail made of square steel is arranged on the bottom surface of the metal fitting, and a pair of rollers connected to the lower end of the panel are brought into contact with both sides of the rail.
Utility Kaihei 4-53999

  In the temporary gate shown in the above-mentioned Patent Document 1, as a means for preventing the danger that the closed panel is shaken by strong wind, the wire is placed slightly above the ground between the lower ends of the left and right columns. Since the structure is such that the ring provided at the lower end of the panel is moored to this wire, when the panel is opened to the left and right and the vehicle is moved in and out, the wire stretched over the sill part Unless the tension state is relaxed, there is a risk that the vehicle will step on the wire in the tension state to cut the wire or break the wire tensioning device.

  In addition, this temporary gate is frequently used not only by vehicles but also by workers, so if the wire is in tension, there will be a problem that the worker will get caught in an accident and fall down. There are problems such as requiring a device for tightening or loosening the wire between the lower ends of the left and right struts and a staff member for operating this device.

  Furthermore, as shown in FIG. 8, when the place where the gate is provided is an inclined ground, in the conventional gate, the wire W is related to the inclination angle of the ground above the sill portion ground G between the left and right support columns Y1, Y2. In addition, since it will be stretched horizontally along the lower end of the panel P without slack, a large space X is formed between the wire W and the sill portion ground G on the lower column side Y2, and the panel P When the wire is loosened after being opened, the amount of the wire W to be fed increases, and the drawn wire is left in an irregular state on the sill surface G, resulting in a very dangerous state. Yes.

  On the other hand, like the gate shown in Patent Document 2, a bracket such as a grooved steel is embedded in the ground of the sill, and a rail made of square steel is disposed on the bottom surface of the bracket, and both sides of the rail are arranged. In the structure where a pair of rollers connected to the lower end of the panel are in contact with each other, the wire is not stretched over the sill, so that an operator can catch the foot and fall, or tighten or loosen the wire. The advantage is that no equipment or personnel are required.

  However, in this gate structure, the rail provided on the bottom surface of the grooved steel bracket embedded in the sill is a wide square steel and extends from the lower end of the panel to the front and rear sides of the rail. Because it is a structure in which a pair of rollers are in contact with each other, it requires a large space in which the width of the square steel rail arranged in the bracket and the width occupied by the two rollers are overlapped. It must be used.

  For this reason, this gate has a wide and deep groove in the sill, and it is easy to collect earth and sand in the groove. However, since the earth and sand must be discharged frequently and constantly, there is a problem that management is troublesome.

  Further, in this gate door, since a pair of rollers extending from the lower end of the panel is sandwiched so as to come into contact with both front and rear side surfaces of the rail in the receiving metal fitting, the upper end of the support shaft of both rollers is the upper support plate. It is structured to be supported by the cantilever. For this reason, when earth and sand enter the receiving bracket from above and adhere to both the front and rear sides of the rail, the width of the rail is expanded, and the lower end width of the roller supporting the upper end in a cantilever manner is expanded outward. There is a problem that an appropriate roller contact state cannot be obtained.

  Furthermore, the roller and the rail are not simply engaged by contact with a vertical surface, and are not engaged because the roller has a small allowance for the rail. In case of occurrence, or as described above, when the earth and sand that has entered into the metal fittings adheres to both the front and rear sides of the rail and the rail cross section is inclined in a mountain shape, the roller floats upward along the inclined surface. Thus, there is a problem that it is easily detached from the rail.

In order to solve the above-described problems of the temporary gate, which is known in the art, the lower end of the foldable panel is used as a rail in a groove-shaped rail case embedded in the ground of the sill. Moorably moored so that the integrity of the panel and rail is always maintained, and the panel can be opened and closed safely without tightening or loosening the rail each time the vehicle passes The purpose is to provide a temporary gate.

  In the temporary gate according to the present invention, as a specific means for that purpose, panels that are foldable on both sides of a plurality of traveling rods are hung so as to be openable and closable by support beams laid between the upper ends of the left and right columns. In the supported temporary gate, a groove-shaped steel rail protective case is buried under the ground of the sill part between the lower ends of the left and right columns so that the upper opening edge is at the same height as the sill part ground. In this protective case, a connecting bracket is provided at the center along the length direction, and a pair of bar-shaped rails are arranged on both the left and right sides of the protective case with the connecting bracket as the center. The end was connected to the side end plate of the protective case, and the inner ends of these rails were connected to the connecting bracket, so that the rail was laid hollow in the protective case and the ring provided at the lower end of the panel was moored to the rail It is characterized by.

  The connecting bracket provided at the center of the rail protective case is a pair of left and right connection sides for connecting the rail inner ends projecting horizontally from the inner side surface of the protective case, and the protective case between the left and right connection sides. In order to keep the front and rear side surfaces at a predetermined interval, it is preferable to have a configuration including a regulation bolt that is penetrated in a direction orthogonal to the rail.

  Further, it is preferable that a lock hole of a French lock provided at the lower end of the traveling rod in the upper double-sided panel is provided on the bottom surface of the protective case where the restriction bolt is provided in the central part of the protective case.

  Further, the outer end of the rail is connected to a position shifted to one side from the central part of the side end plate that closes the outer end of the protective case, and the rail is laid along one side from the central axis in the protective case. It is preferable that the drain hole is provided at one corner below the rail outer end connection portion of the protective case side end plate.

  According to the temporary gate of the present invention, a rail protective case made of grooved steel is provided below the sill part ground of the panel so that the opening is on the upper surface, and a rail made of steel bar is provided in the protective case. Since the ring provided at the lower end of the panel is connected to the rail so that it is supported by the hollow inside the case, the lower end of the panel and the rail are always the ring regardless of whether the panel is open or closed. A reliable mooring state that does not come off can be maintained, and an accident that the panel is shaken by the wind can be solved.

  In addition, the rails mooring the lower end of the panel are arranged in the case groove below the ground of the panel sill, so that the worker is nervous like a conventional gate that stretches the wire above the ground of the sill. It is possible to solve the problem that the wire is damaged by stepping on the wire that is tensed and falling when the vehicle is going in or out, or when the vehicle goes in and out.

  In addition, in the rail protection case of grooved steel embedded in the sill, the rail is supported hollow, and only the ring at the lower end of the panel communicates with this rail, so there is no need for too much space in the groove, Therefore, standard grooved steel with a small groove width and depth can be used as the protective case, and the earth and sand that have fallen into the groove can be easily discharged.

  The rail protective case is provided with a connecting bracket at the center along the length direction in the groove. On the other hand, the rod-shaped rail provided in the case is half of the protective case divided on the left and right with the connecting bracket as a boundary. As the length, the outer ends of the pair of rails are connected to both ends of the case, and the inner ends of the rails are connected to the coupling metal fittings, so that the rails can be laid without loosening in the hollow inside the protective case. .

  In addition, when the rail protective case is buried under the ground of the sill, it faces upward on the opening surface of the groove, and a force that pushes and opens the opening surface of the groove with the vehicle load every time the vehicle passes over the opening surface. However, since the connecting metal fitting is provided in the central portion of the protective case, the force of the connecting metal pushing the groove open can be prevented, and damage to the protective case can be prevented accurately.

  The connecting bracket provided at the center of the rail protective case includes a pair of left and right connection sides for connecting the rail inner ends projecting horizontally from the inner side surface of the protective case, and a protective case between the left and right connection sides. In order to keep the front and rear side surfaces at a predetermined interval, it is preferable to have a configuration including a regulation bolt that is penetrated in a direction orthogonal to the rail.

  Next, the construction of the temporary gate according to the present invention will be described with reference to the embodiment shown in the drawings. FIG. 1 is a front view showing the whole construction of the gate. And a groove-shaped guide rail 3 is provided on the lower surface of the support beam 1, and a travel roller 6 provided on the upper end of the travel bar 5 of the panel 4 is suspended on the guide rail 3 so as to freely travel. It is supported.

  The panel 4 forms a door body 7 that opens in the direction of the left and right support columns 2 around the two traveling rods 5a and 5b at the center, similar to the structure of a known temporary gate, and these door bodies 7 Each of the plurality of panel pieces 8 is supported in an accordion shape with the traveling rod 5 as an axis, so that the whole can be freely opened and closed.

  A groove hole 10 in which a rail protective case 9 made of channel steel can be embedded is provided in the ground of the sill portion connecting the lower ends of the left and right support columns 2, and the protective case 9 is placed in the upper part of the groove hole 10. It is embedded and arranged so that the opening edge 9a is at the same height as the sill portion ground. As shown in FIG. 4, the protective case 9 is formed by projecting horizontal stabilizers 11 at a plurality of locations on the outer surface of the case, burying them in the groove 10, and fixing the periphery with concrete 23. The protective case 9 is configured so as to be stably embedded without sinking deep inside the slot 10 or floating.

  As shown in FIG. 1, the protective case 9 has a sufficient length such that both ends along the length direction protrude outward from the positions of the left and right support columns 2, and the length in the case groove A connecting fitting 13 for the rail 12 disposed in the case groove is provided at the center along the vertical direction.

  The connection fitting 13 provided in the central part of the case 9 is for laying a pair of rails 12 on both the left and right sides of the protection case 9 with the connection fitting 13 as a boundary. As shown in the figure, a pair of left and right connecting sides 14 are horizontally projected from the inner surface of the case 9, and a pair of rail inner ends 12 a are connected to the connecting sides 14, respectively.

  Further, in order to keep the width interval between the front and rear side surfaces 9b and 9c in the central portion of the protective case 9 from being expanded, a regulating bolt 15 is provided between the front and rear side surfaces 9b and 9c in the length direction of the case 9. It penetrates in the orthogonal direction and is fixed with a nut 16.

  Further, on the bottom surface of the central portion of the protective case 9 provided with the connecting fitting 13, a drop hole 18 of a French lock 17 provided at the lower ends of the two traveling bars 5a, 5b in the central portion of the upper double panel 4 is provided. Is provided.

  Furthermore, a side end plate 19 for connecting and fixing one end of the rail 12 laid in the case 9 is provided at both ends of the protective case 9, and below the connecting portion of the rail 12 in the side end plate 19. A drain hole 20 for discharging water accumulated in the case is provided at one corner of the.

  The rail 12 laid in the protective case 9 is composed of a pair of left and right steel rods laid on both sides with the connecting metal fitting 13 as a boundary, and the outer ends 12b of the left and right rails 12 are of the protective case 9. The rails 12 are connected to the side end plates 19 that close both ends, and the inner ends 12a of these rails 12 are connected to the connection side 14 of the coupling fitting 13, and are provided on the rails 12 at the lower ends of the upper panels 4. The ring 21 is moored. A nut 22 is tightened on the outside of the side end plate 19 through which the rail outer end 12b is inserted, so that an appropriate tension force is applied to the rail 12.

  As described above, the side end plates 19 at both ends of the protective case 9 are provided with the drain holes 20 for discharging the water accumulated in the case at the lower corners, and the connecting bracket 12 at the center. Is provided with a drop hole 18 of a French lock 17 provided at the lower end of the upper central travel bars 5a, 5b. Therefore, as shown in FIGS. It is laid along a position slightly shifted to one side from the core C.

  Laying the rail 12 along a position slightly shifted to one side with respect to the central axis in the case 9 is advantageous in providing the rail 12 on one side rather than the advantage of the side end plates 19 at both ends of the case. Even when the drain hole 20 is provided in one corner or the French drop hole 18 is provided in the central portion of the connecting fitting 12, the rail 12 is provided on one side of the case 9, so that these configurations are provided in the case 9. This means that the protective case 9 can be stored well, that is, the width interval between the front and rear side surfaces 9b and 9c is a normal standard without using a wide standard as in this type of conventional device. This means that it can be manufactured at a low cost using the above-mentioned channel steel.

  FIG. 7 shows an example in which the gate of the present invention is provided at an entrance / exit on an inclined land. Also in this case, since the rail 12 is housed in the case 9 in the sloped sill part ground, the lower end of the panel 4 and the rail 12 are connected in advance by a chain 24 connecting a plurality of rings. If this is the case, the space between the lower end of the panel 4 and the rail 12 on the lower column side 2 can be closed with the chain 24, and even when the panel P is opened, the chain 24 does not remain on the sill. There is no problem of being left in a regular state.

  In the above embodiment, the steel rod is used as the rail 12, but a wire may be used. Although not shown in the drawings, the ring 21 provided at the lower end of the panel 4 is not only made of wire, but also has a scrubbing shape or a brush shape. This is effective because the inside of the case can be cleaned when moving in the inside.

  In the temporary gate of the present invention, a rail made of a steel bar is laid in a position below the ground below the sill ground of the gate panel so that it can be stretched without slack, and the ring at the lower end of the panel is moored to this rail. Because it is configured, the panel can always be freely opened and closed, and there is no need to stretch the wire on the ground above the sill, so that the safety of workers and vehicles is ensured accurately Can do.

The whole front view which shows the structure of the temporary gate which concerns on this invention. The partial expanded sectional view which looked at the structure of the sill part below a gate from the front. The partial expanded sectional view seen from the upper part of the same part. Sectional drawing in the AA of FIG. Sectional drawing in the BB line of FIG. Sectional drawing in the CC line | wire of FIG. The front view at the time of providing this gate on the slope. The front view at the time of providing this kind of conventional gate on the slope.

Explanation of symbols

1: support beam,
2: support,
3: Guide rail,
4: Panel,
5: Running rod,
6: Traveling roller,
7: Door,
8: Panel piece,
9: Protective case,
9a: upper opening edge,
9b, 9b: both front and rear sides,
10: slot,
11: Stabilizer,
12: Rail,
12a: rail inner end,
12b: rail outer end,
13: Connecting bracket,
14: connection side,
15: Regulatory bolt,
16: nut,
17: French dropped tablets,
18: Pithole,
19: side end plate,
20: drainage hole,
21: Ring,
22: nut,
23: Concrete,
24: Chain

Claims (4)

In the temporary gate, the panels that are foldable on both sides of the plurality of traveling rods are supported so as to be openable and closable by the support beams laid between the upper ends of the left and right columns.
Under the ground of the sill part between the lower ends of the left and right pillars, a rail protection case made of channel steel is buried and placed so that the upper opening edge is at the same height as the sill part ground,
In this protective case, a connecting bracket having left and right connecting sides projecting from the inner surface of the protective case is provided at the central portion along the length direction. A pair of bar-shaped rails are arranged on both the left and right sides, the outer ends of these rails are connected to the side end plates of the protective case, and the inner ends of these rails are connected to the connection side of the connecting bracket, thereby protecting the rails into the protective case. Laying in the hollow inside,
A temporary gate, wherein a ring provided at the lower end of the panel is moored to the rail.   The connecting bracket provided at the center of the protective case is a pair of left and right connection sides for connecting the rail inner ends projecting horizontally from the inner side surface of the protective case, and the front and rear of the protective case between the left and right connection sides. The temporary gate according to claim 1, further comprising a regulating bolt that is penetrated in a direction orthogonal to the rail in order to maintain a gap between both sides at a predetermined interval.   The temporary gate according to claim 1, wherein a lock hole of a French lock provided at the lower end of the traveling rod in the upper double-sided panel is provided on the bottom surface of the protective case where the restriction bolt is provided in the central part of the protective case.   The outer end of the rail is connected to a position shifted to one side from the central part of the side end plate that closes both ends of the protective case, and the rail is laid along one side from the central axis in the protective case. The temporary gate according to claim 1, wherein a drainage hole is provided at one corner below the rail outer end connection portion of the end plate.

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