JP2710224B2 - Pipe pillow spacer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe pillow spacer for adjusting the height of a pipe pillow for supporting an underground pipe such as an electric wire protection pipe.

[0002]

2. Description of the Related Art Conventionally, as this kind of spacer for a pipe pillow, as disclosed in Japanese Utility Model Publication No. Hei 6-3254, a curved spacer mounted on a concave pipe receiving portion of a pipe pillow is known. Have been.

[0003]

However, in this case, the shape is inevitably complicated due to the necessity of being mounted on the concave tube receiving portion of the tube pillow. As a result, there is an inconvenience that the processing is troublesome when manufacturing the tube pillow spacer.

[0004] In view of the above circumstances, an object of the present invention is to provide a tube pillow spacer excellent in workability at the time of manufacturing.

[0005]

That is, the present invention provides a tube pillow (13) having a concavely curved tube receiving surface (13a), a bottom engagement protrusion (13b), and a bottom engagement recess (13c). A pipe pillow spacer (1) having a block-shaped main body (2), wherein at least one side of the main body has a notch.
And a first engaging recess (5) formed on the upper surface of the main body and capable of engaging with a bottom engaging convex portion of the tube pillow;
A first engaging projection (6) capable of engaging with the bottom engaging recess of the tube pillow, and a second engaging member capable of engaging with the bottom engaging recess of the tube pillow on the lower surface of the main body. A mating projection (7) and a second engagement recess (8) capable of engaging with the bottom engagement projection of the tube pillow are formed.

[0006]

[0007] The numbers in parentheses are for convenience showing the corresponding elements in the drawings, and the present invention is not limited to the description on the drawings. The same applies to the fields of “Claims” and “Action”.

[0008]

According to the present invention, if one or more tube pillow spacers (1) are inserted between the upper and lower tube pillows (13), the distance between the tube pillows is reduced. Height (H
It acts to increase by a distance equal to an integral multiple of 1).

A notch (9, 9) is formed on the side of the main body (2).
If there is 10), the sand existing therearound enters into the notch, so that the pipe pillow spacer (1) acts so as to be fixed at a predetermined position by the wedge effect.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing one embodiment of a tube pillow spacer according to the present invention, FIG. 2 is a front view showing one use state of the tube pillow spacer shown in FIG. 1, and FIG. 3 is a tube pillow spacer shown in FIG. FIG. 4 is a side view showing a piping structure of an underground pipe, and FIG. 5 is a front view showing still another usage state of the pipe pillow spacer shown in FIG.

As shown in FIG. 1, the pipe pillow spacer 1 according to the present invention has a block-shaped main body 2 made of a synthetic resin and having a predetermined height H1 (for example, H1 = 20 mm). A plurality of reinforcing ribs 3 are integrally provided upright. A first engaging concave portion 5 and a first engaging convex portion 6 are integrally formed on an upper surface of the main body 2, and a second engaging convex portion 7 and a second engaging convex portion 7 are formed on a lower surface of the main body 2. The recess 8 is formed integrally. Further, rectangular cutouts 9 and 10 are formed on both side surfaces of the main body 2, respectively.

As shown in FIG. 2, a concave pipe receiving surface 13a having a radius of curvature R1 corresponding to the radius of the underground pipe 12 is formed on the upper part of the pipe pillow 13, as shown in FIG. The bottom surface of the pillow 13 has a bottom engagement protrusion 13b and a bottom engagement recess 1
3c is formed. Therefore, the bottom engagement protrusion 13b and the bottom engagement recess 13c of one tube pillow 13 are respectively replaced with the bottom engagement recess 13c and the bottom engagement protrusion 13 of another tube pillow 13.
The two tube pillows 13 can be connected to each other in such a manner that the bottom surfaces thereof are in contact with each other by being inserted through the b. Furthermore,
On one side surface of the tube pillow 13, a side engaging projection 13d is formed, and on the other side surface of the tube pillow 13, a side engaging recess 13e is formed. Therefore, one tube pillow 13
Of the side engaging projection 13d of the other side of the tube pillow 13
By inserting the tube pillows 3e, the two tube pillows 13 can be joined in a form of being arranged side by side. Similarly,
It is also possible to connect three or more pipe pillows 13 in a side-by-side arrangement.

A spacer 1 for a tube pillow and a tube pillow 1 according to the present invention.
3 has the above-described configuration, when installing the underground pipes in the ground in two steps and two rows, as shown in FIG. 4, a plurality of pipe pillows 13 are placed in two rows. Together with these tube pillows 13
A plurality of underground pipes 12 are mounted on the pipe receiving surface 13a and joined to each other in the longitudinal direction, and similarly, a plurality of underground pipes 12 The middle buried pipes 12 are mounted in two rows and joined to each other in the longitudinal direction.

At this time, it is often necessary to change the vertical distance between the underground pipes 12 in accordance with the manhole duct opening and other topographical conditions at the site of embedding. In this case, the vertical spacing between the underground pipes 12 can be changed by inserting the pipe pillow spacers 1 between the upper and lower pipe pillows 13 and appropriately adjusting the distance between the pipe pillows 13. I can do it. That is, as shown in FIG. 2, the bottom engagement protrusion 13 b and the bottom engagement recess 13 c of the upper tube pillow 13 are respectively provided on the first engagement recess 5 and the first engagement protrusion 6 of the tube pillow spacer 1. By being inserted, the upper tube pillow 13 is connected to the upper side of the tube pillow spacer 1, and the lower tube pillow 13 is inserted into the second engagement projection 7 and the second engagement recess 8 of the tube pillow spacer 1, respectively. Bottom engaging recess 1
The lower tube pillow 13 is connected to the lower side of the tube pillow spacer 1 by inserting the 3c and the bottom engagement protrusion 13b. Then, the pipe pillow spacer 1 is interposed between the upper and lower pipe pillows 13, and as a result, the distance between the upper and lower pipe pillows 13 (accordingly,
The vertical spacing between the underground pipes 12) is increased by a distance equal to the height H1 of the pipe pillow spacer 1.

The upper surface and the lower surface of the main body 2 of the pipe pillow spacer 1 are formed with a first engaging concave portion 5, a first engaging convex portion 6, a second engaging convex portion 7, and a second engaging concave portion 8. 3, two pipe pillow spacers 1 are vertically connected to each other and inserted between the upper and lower pipe pillows 13 as shown in FIG. Distance (hence the underground pipe 1
2) of the height H1 of the spacer 1 for the pipe pillow.
It can also be increased by a distance equal to twice. Similarly, by stacking and using three or more pipe pillow spacers 1, the distance between the upper and lower pipe pillows 13 (and, consequently, the vertical distance between the underground pipes 12) can be appropriately changed. is there. Alternatively, as shown in FIG.
Two different two types of pipe pillow spacers 1 can be stacked and used. As specific examples of the heights H1 and H2,
H1 = 20 mm, H2 = 50 mm, H1 = 20 mm, H2 = 3
0 mm can be mentioned. Note that H1 = 20 mm, H2
When it is set to 30 mm, it is possible to set the vertical spacing between the underground pipes 12 at a pitch of 20 mm or more and 10 mm (20 mm, 30 mm, 40 mm, 50 mm, 60 mm...).
That is, if only one pipe pillow spacer 1 having a height of 20 mm is used, the vertical distance between the underground pipes 12 becomes longer by 20 mm,
The use of only one pipe pillow spacer 1 having a height of 30 mm increases the vertical distance between the underground pipes 12 by 30 mm. Also,
If two pipe pillow spacers 20 with a height of 20 mm are used, the vertical distance between the underground pipes 12 becomes 40 mm longer and the height is 20 mm.
By combining one of the tube pillow spacers 1 and one of the tube pillow spacers 1 having a height of 30 mm, the vertical distance between the underground pipes 12 is increased by 50 mm. Furthermore, two pipe pillow spacers 1 having a height of 30 mm (or three spacers 1 having a height of 20 mm) are used.
If used, the vertical spacing between underground pipes 12 is 60 mm
It will be longer.

Further, as described above, the notches 9 and 10 are provided on both side surfaces of the main body 2 of the pipe pillow spacer 1, so that sand existing around the notches 9 and 10 is provided. ,
10, the pipe pillow spacer 1 is fixed at a predetermined position by the wedge effect, so that the pipe pillow 13 and the underground pipe 12 do not shift after being buried. In particular, when a large number of tube pillow spacers 1 are stacked and used, the notch portions 9, 1,
Since 0 is continuous in the vertical direction, the wedge effect with the surrounding sand is further enhanced.

In the above-described embodiment, the description has been given of the pipe pillow spacer 1 in which the rectangular cutouts 9 and 10 are formed on both side surfaces of the main body 2, respectively. However, the present invention is not limited to the rectangular shape, and may be formed only on one side surface of the main body 2 .

[0018]

As described above, according to the present invention,
A tube pillow spacer 1 applied to the tube pillow 13 having a concavely curved tube receiving surface 13a and bottom engagement projection 13b and the bottom surface engaging recess 13c, has a block-shaped main body 2, the Book
Form cutouts (9, 10) on at least one side of the body
A first engaging concave portion 5 which can be engaged with a bottom engaging convex portion 13b of the tube pillow 13 on the upper surface of the main body 2;
And a first engaging projection 6 which can be engaged with the bottom engaging recess 13c of the pipe pillow, and a second engaging which can be engaged with the bottom engaging recess 13c of the pipe pillow 13 on the lower surface of the main body 2. Convex part 7 and tube pillow 1
Since the second engagement concave portion 8 that can be engaged with the bottom engagement convex portion 13b of 3 is formed and configured, if one or more tube pillow spacers 1 are inserted between the upper and lower tube pillows 13, Since the distance between these tube pillows 13 is increased by a distance equal to an integral multiple of the height H1 of the tube pillow spacer 1, the tube pillows 13 can be adjusted to a desired height. Moreover, the main body 2 of the pipe pillow spacer 1
Is a block shape, it is possible to provide the pipe pillow spacer 1 excellent in workability at the time of manufacturing. Also, the main body
The sand present around the notches 9 and 10 of the second
The tube pillow spacer 1 has its wedges
Since it is fixed in place by the effect, after burial
Of the pipe pillow 13 and the underground pipe 12
It becomes possible.

[0019]

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of a tube pillow spacer according to the present invention.

FIG. 2 is a front view showing a use state of the tube pillow spacer shown in FIG. 1;

FIG. 3 is a front view showing another usage state of the tube pillow spacer shown in FIG. 1;

FIG. 4 is a side view showing a piping structure of an underground pipe.

FIG. 5 is a front view showing still another use state of the pipe pillow spacer shown in FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Pillow spacer 2 ... Main body 5 ... 1st engagement concave part 6 ... 1st engagement convex part 7 ... 2nd engagement convex part 8 ... 2nd engagement concave part 9, 10 ... Notch 12 ... Underground pipe 13 ... Pipe pillow 13a ... Pipe receiving surface 13b ... Bottom engaging convex 13c ... Bottom engaging concave H1, H2 ... Height of pipe pillow spacer

Claims (1)

(57) [Claims] 1. A tube pillow spacer (1) applied to a tube pillow (13) having a concavely curved tube receiving surface (13a), a bottom engagement protrusion (13b), and a bottom engagement recess (13c). ) Having a block-shaped body (2), and a notch (9, 1
0) is formed on the upper surface of the main body, and a first engagement recess (5 ) capable of engaging with a bottom engagement protrusion of the tube pillow and a bottom engagement recess of the tube pillow can be engaged. A second engaging projection (7) formed on a lower surface of the main body and capable of engaging with a bottom engaging recess of the tube pillow, and a bottom surface of the tube pillow; A pipe pillow spacer formed by forming a second engagement concave portion (8) capable of engaging with the engagement convex portion.