JPH11150845A - Stay block - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stay block which makes easily enables a number of parts to be minimized, eliminate weld and thereby enhance productivity and simplify on-site installation work, and is further sufficiently resistant to load. SOLUTION: A through-hole 2 is formed in the center of a body 1, formed of an integral continuous plane recessed toward the center. A stay rod 3 is inserted into the through-hole 2, and the stay rod 3 is inserted into the insertion hole 5 in a body receiver 4. A nut 7 is fastened onto the male thread 6 at an end of the stay rod 3, and the body 1 is supported by the nut 7 fastened to the lower end of the stay rod 3 through the body receiver 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stay block which is buried underground for mooring a power pole branch line and the like so as to resist a tensile load of the branch line.

[0002]

2. Description of the Related Art Conventionally, in order to prevent a telephone pole from falling down,
Mooring of utility pole branch lines is underway. As a stay block for this, as shown in FIG. 7, a reinforcing plate 13 is welded in a cross shape around a pipe 12 having an insertion hole 11 formed in the center of a main body 10 made of a grooved steel plate.
It is known that the end of the branch rod 14 is inserted into the insertion hole 11 and welded.

[0003] Such a conventional buried block is composed of a main body 1
Since the reinforcing plate 13 and the support rods 14 provided as the reinforcing means are of a welded structure, not only the manufacturing cost rises but also the tensile load acting on this portion depends on the reliability of welding. This requires a large area to be welded and uniform welding is required.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and it has been proposed to improve the productivity by minimizing the number of parts and eliminating welding parts, Construction work can be performed easily,
Moreover, an object of the present invention is to provide a stay block capable of sufficiently exhibiting resistance to a load.

[0005]

In order to achieve the above-mentioned object, a stay block according to the present invention is provided with a through-hole at the center of a main body composed of an integral continuous surface which is depressed toward the center, and the through-hole is provided. By inserting a branch rod into the through-hole of the main body receiver and fastening a nut to a male screw at the end of the branch rod, the nut fastened to the lower end of the branch rod is inserted. The main body is supported via the main body receiver.

[0006] A reinforcing portion may be formed on the main body.

The main body may be formed by pressing a steel plate.

[0008] The main body may be formed of a ductile casting.

Further, the main body and the main body receiver may be integrally formed by ductile casting.

[0010]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 (a) is an overall perspective view of a stay block according to a first embodiment of the present invention, and FIG. 1 (b) is a partially enlarged sectional view showing a connecting portion of a branch rod of FIG. 1 (a). . FIG. 2 is a perspective view of a stay block according to a second embodiment of the present invention. FIG. 3 is a perspective view of a stay block according to a third embodiment of the present invention. FIG. 4 is a perspective view of a stay block according to a fourth embodiment of the present invention as viewed obliquely from above. FIG. 5 is a perspective view of a stay block according to a fourth embodiment of the present invention as viewed obliquely from below. FIG. 6 is a partially enlarged sectional view showing a connecting portion of a branch rod of a stay block according to a fourth embodiment of the present invention.

The stay block according to the present invention is provided with a through hole 2 at the center of a main body 1 formed of an integral continuous surface which is depressed toward the center. 3 is inserted into the through hole 5 of the main body receiver 4, and the nut 7 is fastened to the male screw 6 at the end of the branch rod 3.
The main body 1 is supported via a main body receiver 4 by a nut 7 fastened to the lower end of the support rod 3.

(Embodiment 1) The main body 1 of this embodiment is shown in FIG.
As shown in (a), the main body 1 is formed by forming a dish-like shape forming a part of a spherical surface, thereby forming an integral continuous surface that is depressed toward the center. A through hole 2 is formed in the center of the main body 1 in a direction perpendicular to the plane.

The main body 1 can be formed by pressing a steel plate with a spatula, and does not require any welding.

The main body receiver 4 has a circular shape having an inner peripheral surface similar to the spherical surface of the main body 1 and has a shape whose thickness is increased toward the center, and a through hole 5 is formed at the center. It is.
By forming such a main body receiver 4 by ductile casting, excellent toughness and corrosion resistance are secured.
Lightening can be achieved.

Further, a tie ring 3a is formed on the upper part of the branch rod 3, and a male screw 6 is formed on the lower end.

Then, as shown in FIG. 1B, the branch rod 3 is inserted into the through hole 2 of the main body 1 and the through hole 5 of the main body receiver 4 and the male screw 6 at the lower end of the branch rod 3 is inserted. By fastening the nut 7, the main body receiver 4 is locked by the nut 7, and the main body 1 is supported by the main body receiver 4.

Such a stay block comprises a main body 1 supported by the main body receiver 4 at a place where a utility pole branch line (not shown) is connected to a tying ring 3a of a branch rod 3 and excavated in the ground by an earth auger or the like. Buried. In such a configuration, when a tensile load acts on the branch rod 3 via the power pole branch line, the tensile load acts on the main body 1 from the nut 7 via the main body receiver 4, but is loaded over the entire area of the main body 1. The soil acts as resistance.

Moreover, since the main body 1 is formed of an integral continuous surface whose shape is depressed toward the center, it is possible to effectively utilize the piled soil on the upper surface as a resistance load.

Further, the stay block of this embodiment has a small number of parts including the branch rod 3, the main body 1, the main body receiver 4, and the nut 7, and does not require any welding portion.
Also in the construction work at the site, the assembly is completed only by the insertion work of the branch rod 3 and the fastening work of the nut 7.

(Embodiment 2) As shown in FIG. 2, the stay block of this embodiment has a shape in which a hollow cylindrical shape is vertically divided from a main body 1, and a curved surface portion 1a is formed by pressing a steel plate. Then, the flat plate portions 1b, 1b on both sides are formed from a semicircular steel plate, and are fixed to the curved surface portion 1a by welding.

As in the first embodiment, a through hole 2 is provided in the center of such a main body 1 and a male screw 6 is formed at an end of a branch line rod 3 inserted into the through hole 2. Stick 3
The nut 7 is fastened to the male screw 6 by passing the end of the nut through the through hole 5 of the main body receiver 4.

However, in this embodiment, the main body receiver 4
Is preferably a rectangular shape having an inner peripheral surface bent in the same manner as the curved surface of the main body 1, but has a shape in which the thickness is increased toward the center of the main body receiver 4 as in the first embodiment, The through hole 5 is formed in the center. Further, since the main body receiver 4 is formed of ductile casting, it has excellent toughness and corrosion resistance, and can achieve weight reduction.

(Embodiment 3) As shown in FIG. 3, the stay block of this embodiment has a body 1 in which a curved surface portion 1a and flat plate portions 1b, 1b approaching with both sides approaching downward are connected. The curved surface portion 1a is formed by pressing a steel plate as described above, and the side surface portion 1b is fixed to the curved surface portion 1a by welding.

A through hole 2 is provided at the center of the main body 1 and a male screw 6 is attached to the lower end of the branch rod 3 inserted through the through hole 2.
Is formed, and the nut 7 is fastened to the male screw 6 through the through hole 5 of the main body receiver 4 in the same manner as in the first embodiment.

However, in this embodiment, the main body receiver 4
It is preferable to form a rectangular shape having an inner peripheral surface bent similarly to the curved surface of the main body 1.

Also, by forming the body receiver 4 to have a thicker shape toward the center and forming a through hole 5 at the center thereof, and by forming the body receiver 4 by ductile casting, excellent toughness is obtained. As described above, it is also possible to secure corrosion resistance and the like and achieve weight reduction.

(Embodiment 4) As shown in FIGS. 4 to 6, the stay block of this embodiment has a dish-like shape composed of a part of a spherical surface, as in Embodiment 1. Since the whole is made thicker and provided with a reinforcing portion, it is preferable to reduce the weight of the whole by integral molding using ductile casting.

The reinforcing portion is provided with a boss-shaped protruding portion 8 on the upper surface, and forms thick portions 9a, 9a,... So you are as thin.

As shown in FIG. 6, a through hole 2 is formed in the center of the main body 1 and a branch rod 3 is inserted into the through hole 2. The lower end of the through hole 2 forms a large diameter portion 2a and a stepped portion. 2b is formed, and a nut 7 having a circular outer circumference is inserted into the large diameter portion 2a.
The male screw 6 of the support rod 3 is fastened.

Therefore, the main body 1 can be supported by the nut 7 fastened to the lower end of the support rod 3 being locked to the step 9b of the main body 1 against the tensile load of the support rod 3.

In the stay block of this embodiment, the main body 1 and the main body receiver 4 are integrally formed by ductile casting, so that the number of parts is reduced. It is only necessary to insert the feeder rod 3 into the support rod 3 and fasten the nut 7 to the feeder rod 3.

[0033]

As described above, the stay block of the present invention comprises only the main body, the main body receiver, the support rod, and the nut. Since it can be reduced as much as possible, the cost is low and it is useful for improving the productivity.

Further, by forming the main body receiver by ductile casting, the weight can be reduced, and a support structure having toughness and corrosion resistance to the main body can be obtained.

Further, at the construction site, it is only necessary to insert the branch rod into the through hole of the main body and the main body receiver and fasten the nut, so that the assembly can be completed by a very simple operation, and furthermore, the hollow is formed toward the center. Since the main body has a shape of an integral continuous surface, the piled soil on the upper surface of the main body can be effectively used as a resistance load.

[Brief description of the drawings]

1 (a) is an overall perspective view of a stay block according to a first embodiment of the present invention, and FIG. 1 (b) is a partially enlarged sectional view showing a connecting portion of a branch rod in FIG. 1 (a). is there.

FIG. 2 is a perspective view of a stay block according to a second embodiment of the present invention.

FIG. 3 is a perspective view of a stay block according to a third embodiment of the present invention.

FIG. 4 is a perspective view of a stay block according to a fourth embodiment of the present invention as viewed obliquely from above.

FIG. 5 is a perspective view of a stay block according to a fourth embodiment of the present invention as viewed obliquely from below.

FIG. 6 is a partially enlarged sectional view showing a connecting portion of a branch rod of a stay block according to a fourth embodiment of the present invention.

FIG. 7 is a perspective view of a conventional stay block.

[Description of sign]

 DESCRIPTION OF SYMBOLS 1 ... Main body 2 ... Through-hole of main body 3 ... Branch wire 4 ... Main body receiver 5 ... Through-hole of main body receiver 6 ... Male screw 7 ... Nut

Claims (5)

[Claims] 1. A through-hole is provided at the center of a main body formed of an integral continuous surface that is depressed toward the center, and a branch rod is inserted into the through-hole, and the branch rod is inserted into a through-hole of a main body receiver. A nut is fastened to a male screw at an end of the branch rod, so that the nut is fastened to the lower end of the branch rod to support the main body via the main body receiver. block. 2. A stay block according to claim 1, wherein a reinforcing portion is formed on said main body. 3. The stay block according to claim 1, wherein said main body is formed by pressing a steel plate. 4. The stay block according to claim 1, wherein said main body receiver is formed by ductile casting. 5. The stay block according to claim 1, wherein said main body and said main body receiver are integrally formed by ductile casting.