JP3001430U - Paving blocks - Google Patents

Abstract

(57) [Summary] [Purpose] The rubber slab on the surface will not come off,
Obtain paving blocks that are slippery and do not create dangerous snow pressure or freezing conditions. A metal plate plate 1 having a fixed planar shape and a metal plate anchor 2 having a plurality of holes 3 welded vertically to a lower surface, and a plurality of parallel grooves 6 on an upper surface, A rubber thick plate 5 having the same shape as the plate plate and having a lower surface bonded to the upper surface of the metal plate plate, and the same shape as the metal plate plate,
It is composed of a thick concrete base layer 7 in which the anchor 2 of the metal plate plate is buried and the metal plate plate 1 is fixed on the upper surface.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention relates to paving blocks for paving roads and sidewalks laid side by side.

[0002]

[Prior art]

 A paving block in which a rubber plate having a rectangular planar shape is fixed to the upper surface of a concrete base layer having the same shape with an adhesive is known from JP-A-5-285914.

[0003]

[Problems to be solved by the device]

 In the conventional block mentioned above, a rubber plate is adhered to the upper surface of the concrete base layer, but the adhesive strength between the rubber and concrete is low, so when paving by laying it on the roads such as intersections where automobiles often turn left and right, The tires of cars turning left and right rub against the rubber plate due to the unbalanced load, and the rubber plate peels off from the concrete base layer. In addition, since the surface of the rubber plate is flat, the snow that has fallen on it is pressed by the tires of the car in a cold region, resulting in a very slippery pressure snow condition, causing the car to slip and cause an accident or crossing. Pedestrians may fall and get injured.

[0004]

[Means for Solving the Problems]

 The present invention was developed to solve the above-mentioned problems of the conventional concrete block for paving, and an anchor made of a metal plate having a certain flat shape and having a plurality of holes is vertically arranged on the lower surface. A fixed metal plate, a rubber plate having a large number of parallel grooves on the upper surface and having the same shape as the metal plate and a lower surface bonded to the upper surface of the metal plate, and the same shape as the metal plate, It is characterized in that it consists of a thick concrete base layer in which the anchor of the metal plate is embedded and the metal plate is fixed on the upper surface.

[0005]

In the illustrated embodiment, 1 is a metal plate plate, 2 is a metal plate anchor welded vertically to the lower surface thereof, and several holes 3 are opened in the anchor. The metal plate 1 and the anchor 2 are made of an iron plate in this embodiment, and the metal plate 1 has a thickness of, for example, 2.5 mm, and the planar shape is a rectangle having long sides of about 200 mm and short sides of about 100 mm. . The anchor 2 is made of a metal plate having a thickness of 3 mm, and is welded downward on the lower surface of the metal plate so as to divide the metal plate into two along the long side. The anchor 2 has a downward length of about 40 mm, has two semicircular notches 4 at both ends, and has two holes 3 at equal intervals between the notches at both ends. The diameter of the two holes 3 and the diameter of the two notches 4 at both ends are about 30 mm.

Reference numeral 5 denotes a rectangular rubber thick plate of the same size, which is fixed on the metal plate 1 with a strong adhesive and has a thickness of about 15 mm. For the rubber material of the rubber plate, use a mixture of natural rubber and synthetic rubber that has high abrasion resistance and excellent tear strength. A large number of grooves 6 each having a groove width of about 7 mm and a depth of about 7 mm are provided in parallel on the upper surface of the rubber thick plate at intervals of about 10 mm. The groove 6 has an angle α of about 60 ° with respect to the long side of the thick rubber plate, but this angle is arbitrary.

Reference numeral 7 is a rectangle having the same size as the metal plate, showing a concrete base layer having a thickness of about 65 mm, which is formed by filling the anchor 2 of the metal plate and fixing the metal plate on the upper surface. Since the concrete 8 of the base layer 7 fills the holes 3 and the notches 4 of the buried anchor 2 and is solidified, the attachment strength between the metal plate 1 and the concrete base layer 7 is extremely large.

In order to form this paving block, a rubber thick plate 5 is bonded to the upper surface of the metal plate 1 to which the anchor 2 is welded with the groove 6 on the upper side by an adhesive, and as shown in FIG. The rubber plate 5 is housed on a pallet 13 that closes the bottoms of the mold holes 12 that penetrate the mold frame 11 for molding the base layer 7 up and down, and the anchors 2 stand upright in the mold holes 12 with a slump value of 0. A predetermined amount of kneaded concrete is put into and vibrated by the vibrators 14, 14 and filled, and the vibrating machine continues to vibrate, and then the press device 15 descends, and the press plate 16 at the lower end lowers the concrete and metal plate in the mold cavity. , The rubber plate is pressed to increase the density of concrete, and the product height is adjusted to the specified level, then the vibrator is stopped, the press device is further lowered, and the pallet 13 is also lowered at the same time. Pa Demold on the let.

In the illustrated embodiment, the metal plate, the rubber slab, and the concrete base layer have a rectangular plan shape, and the number of layings per 1 m ^{2 of} road is 40. The size is arbitrary.

[0010]

[Effect of device]

 For the adhesion between rubber and a metal plate, a strong adhesive that does not separate the rubber from the metal plate is commercially available (trade name: Chemlok, manufacturer name: Far far East Inc.). Since the rubber plate 5 of the paving block of the present invention is adhered to the upper surface of the metal plate 1 with such an adhesive, it is laid at intersections or the like and the tire of the automobile is rubberized by an unbalanced frictional force. Even if you rub the slab, the rubber slab will never come off.

The metal plate plate 1 is fixed to the upper surface of the base layer by embedding a metal plate anchor 2 vertically welded to the lower surface in a concrete base layer 7. A plurality of holes 3 are opened in the anchor, and the concrete 8 of the base layer fills the holes 3. Therefore, the attachment strength between the metal plate 1 and the concrete base layer 7 is also extremely strong.

The rubber thick plate 5 has a large number of parallel grooves 6 on its upper surface. The groove 6 acts as an anti-slip for automobile tires and pedestrian shoes, and in the event of snow and freezing in winter, the ridges 6'separate the groove 6 by an unbalanced load received from an automobile tire running on it. Is deformed, and due to the elasticity of rubber and the strain, the snow clogged in the groove 6 is pressed and crushed and pushed out of the groove. Therefore, the snow layer on the rubber slab is easily peeled off and crushed, so that it is not slippery and dangerous, and the snow is not frozen or frozen. This will prevent car slip accidents and pedestrian fall accidents.

[Brief description of drawings]

FIG. 1 is a side view of a block having a cross section of base layer concrete.

2 is a perspective view of the block of FIG. 1. FIG.

FIG. 3 is an explanatory diagram showing a molding state of a block.

[Explanation of symbols]

 1 Metal Plate Plate 2 Anchor 3 Hole 4 Notch 5 Rubber Thick Plate 6 Groove 6'Convex Line 7 Concrete Base Layer 8 Concrete

Claims (1)

[Scope of utility model registration request] 1. A metal plate plate having a fixed planar shape and a metal plate anchor having a plurality of holes fixed vertically to the lower surface, and a plurality of parallel grooves on the upper surface, the metal plate plate From the rubber thick plate whose lower surface is bonded to the upper surface of the metal plate in the same shape as the above, and the thick concrete base layer which has the same shape as the metal plate plate and in which the anchor of the metal plate is embedded to fix the metal plate to the upper surface A paving block characterized by being