JPH057719U - Car stop - Google Patents

Abstract

(57) [Summary] [Purpose] A synthetic resin car stop frame is attached without correction even if the anchor bolt is slightly bent, and the attachment part is prevented from loosening due to expansion and contraction of the frame synthetic resin. [Structure] A through hole 2 for an anchor bolt which has a rectangular cross section with a long side extending in the longitudinal direction in a car-stop body 1 made of synthetic resin.
And a metal cylindrical tube 3 that is inscribed in the lower bottom edge of the through hole and into which the anchor bolt is inserted, and is placed on the cylindrical tube, and an elliptical through hole 5 is provided, and the periphery is located above the peripheral wall of the through hole. The fixed washer 4 in contact is used as a support, and the anchor bolt 9 is tightened with a tightening nut 8 to fix the body to the ground.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a car stop attached to a quay, a parking lot, or the like to prevent an accident due to an overrun of a car.

[0002]

[Prior Art]

 As a car stop, the method of fixing the synthetic resin skeleton with anchor bolts that have been planted in the ground in advance instead of the concrete filled inside the steel plate frame has better workability than the above concrete filling method. However, it is widely used because of its excellent effect as a sign. Examples of using a synthetic resin frame include Jikkou 59-20410 and Jikkai 62-120512, the former of which are provided with through holes for inserting anchor bolts at predetermined intervals in the car-stop body and previously planted in the ground. An upright anchor bolt is inserted and fastened to the tightening part of the car stop body with a washer.The latter is a tapered wall with the anchor bolt insertion hole expanded upward to facilitate packing of concrete. It is formed in the insertion hole of and the concrete mortar is fixed between the anchor bolt and the through hole.

However, in the former case, when the skeleton is fixed by inserting the anchor bolt, the thermal expansion and contraction of the synthetic resin is larger than that of the anchor bolt, so that the tightening is loosened due to the temperature change and the skeleton and the ground are loosened. "Rattling" occurs in the connection with the. Therefore, in order to avoid this, the gap between the anchor bolt and the through hole of the synthetic resin body is small. Therefore, if the anchor bolts are bent and planted a little, it is necessary to strike each time to straighten them vertically, resulting in poor workability. Since the latter is fixed with concrete mortar, expansion and contraction of the skeleton can be suppressed, but a process for filling the concrete mortar is required, and there is a demand for a mechanical stop that can be fixed mechanically without this filling step.

[0004]

[Problems to be Solved by the Invention] The inventors have omitted the filling work with the concrete mortar, and have made it possible to connect the anchor bolt based on the difference in expansion and contraction due to the temperature change of the synthetic resin body and the anchor bolt. After repeated research on the structure to prevent loosening, the metal cylinder can be fitted into the through hole for the anchor bolt that is expanded upward, and the fixing metal fitting that is in contact with the through hole wall of the car stop frame can be attached and tightened on top of it. We found that and completed the present invention.

[0005]

[Means for Solving the Problems]

 According to the present invention, a plurality of through holes for anchor bolts, which have a rectangular cross-section and have a long side in the longitudinal direction and which spread upward in a longitudinal direction, are provided in a synthetic resin car-stop body, and the anchor bolts are preliminarily fitted and inserted into the ground. A metal tubular pipe that is inscribed in the bottom edge of the through hole, and a tightening nut that is placed on the tubular pipe and has an elliptical through hole and a fixed washer that contacts the upper part of the peripheral wall of the through hole. According to the present invention, there is provided a car stop characterized in that the skeleton is connected to an anchor bolt.

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a vertical cross-sectional view through the center of a car stop according to the present invention. The car stop frame is fixed to the ground by a plurality of anchor bolts, for example, four anchor bolts. 2 is a vertical sectional view passing through the center of the anchor bolt, and FIG. 3 is a lateral sectional view of the same. The vehicle body 1 is provided with a through hole 2 for an anchor bolt, which has a rectangular cross section and has a long side for inserting the anchor bolt, and which is widened upward. A tubular pipe 3 made of steel and having a rectangular cross-section is inserted inside the lower bottom edge of the through hole, and an anchor bolt 2 is externally inserted. A fixed washer 4 is placed on and abutted on the tubular pipe 3, and a fastening nut 8 is screwed onto the anchor bolt 9 via a washer 6 and a spring washer 7 on the fixed washer to fasten the tubular washer 3 , The fixed washer 4 is firmly fixed to the ground where the anchor bolts are erected. As shown in the perspective view of FIG. 4, the fixed washer 4 has a rectangular plate provided with an oval through hole 5, that is, a through hole having two sides parallel to the long side of the rectangular plate and both ends of a semicircle. In addition, the inner diameter of the cylindrical tube 3 is designed to have a sufficient space with respect to the diameter of the anchor bolt and to be able to be extrapolated as it is even if the anchor bolt is slightly bent. Further, when the fixed washer 4 is placed on the tubular pipe 3 and tightened, the long side and the short side of the rectangular washer are respectively in contact with the upper part of the widened through hole wall of the body 1, and the length of the fixed washer is long. The size of the circular through hole 5 is set so as to be placed in contact with the inner edge of the cylindrical tube 3.

In the above-mentioned embodiment, the rectangular cylindrical tube inscribed in the lower bottom edge of the through hole for the anchor bolt is used as the metallic cylindrical tube, but instead of the rectangular cylindrical tube, it contacts the long side of the lower bottom edge of the rectangular through hole. A cylindrical tube may be used, and the cylindrical washer may be placed on the cylindrical tube and tightened so that the parallel edges of the oblong through holes of the fixed washer 4 contact the inner peripheral edge of the upper end of the cylindrical tube. Although omitted in the description of the present embodiment, it goes without saying that the cap is tightly fitted into the through hole for the anchor bolt after the body is tightened and fixed to prevent intrusion of water, dust and the like.

[0008]

[Action]

 According to the present invention, the metal washer is used as an intermediate support, and the fixed washer is fixed as a strong rigid body that is integrated with the ground where steel anchor bolts are erected. There is no risk of the nut tightening part coming loose due to contraction. In addition, the lower bottom edge of the through hole for the anchor bolt of the synthetic resin frame is in contact with the outer circumference of the tube, and the upper wall surface of the tapered through hole is in contact with the periphery of the fixed washer, so that the expansion of the synthetic resin frame is expanded. , The contraction is suppressed. Also, since the through hole for the anchor bolt has a rectangular cross section and opens upward, the cylindrical pipe 3 in contact therewith has sufficient allowance for the diameter of the anchor bolt, and the fixed washer extends along the longitudinal direction of the body. Since an oval through hole is formed, even if there are some bends in the anchor bolts for fixing the frame, the car stop frame is inserted and fixed according to the anchor bolts without correcting the bends. be able to.

[0009]

[Effect of the device]

 According to the present invention, even if the anchor bolt has some bending, the car stop frame can be attached without correcting the bending, and it can be mechanically tightened and fixed without the need for space filling of cement mortar. Therefore, the workability is very good, and the work period and the work cost can be reduced.

[Brief description of drawings]

FIG. 1 is a vertical sectional view through a center of a bollard according to the present invention.

FIG. 2 is a vertical sectional view of an anchor bolt mounting portion.

FIG. 3 is a cross-sectional view of an anchor bolt mounting portion.

FIG. 4 is a perspective view of a fixed washer.

[Explanation of symbols]

 1 Car stop frame 2 Through hole for anchor bolt 3 Metal tube 4 Fixed washer 5 Oval through hole 8 Tightening nut 9 Anchor bolt

Claims (1)

[Claims for utility model registration] [Claim 1] A plurality of through holes for anchor bolts, which extend upward in a rectangular cross-section with a long side in the longitudinal direction, are provided on a synthetic resin car-stop body, and are planted in advance on the ground. A metal cylindrical pipe fitted into the anchor bolt and inscribed in the lower bottom edge of the through hole; and a fixed washer mounted on the cylindrical pipe and provided with an oval through hole, the periphery of which is in contact with the upper part of the peripheral wall of the through hole. A car stop characterized in that the skeleton is connected to an anchor bolt by a tightening nut through the shaft.