JPH0685983U - Piping material retainer - Google Patents

Abstract

(57) [Summary] [Purpose] A long pipe material made of synthetic resin is fixed while allowing expansion and contraction due to temperature changes. [Structure] A long-sized synthetic resin member composed of a main body (2) integrally formed with a storage section (2a) and a pedestal (2b) and a lid body (3) fitted into the storage section. Plumbing material (1)
Lower presser (6) for mounting the pedestal of the main body of the body and being fixed to the pedestal (10), and one side (7a, 7a ') arranged on both left and right sides of the pedestal, respectively. And the other side (7b, 7b ') is abutted on the upper surface of each side of the pedestal to press the lower presser so as to be slidable in the longitudinal direction. ) And is configured with.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a presser foot for fixing piping materials used for laying power lines and communication lines outdoors, and particularly for fixing long piping materials formed of a synthetic resin member that greatly expands and contracts due to temperature changes. The present invention relates to a presser for a piping material.

[0002]

[Prior art]

 Conventionally, there are concrete troughs and fiber reinforced plastic troughs (hereinafter referred to as "FPR troughs") as ground piping materials used for laying communication lines and power lines. Since concrete troughs are heavy, they do not tend to be long, and the length is at most about 50-60 cm, which makes transportation and construction difficult. In addition, in order to make a long FRP trough for cast molding, it is necessary to lengthen the mold according to the length, which makes the mold cost very expensive.

[0003] Therefore, a pipeline material which is lightweight and has good transportability and workability, and which is inexpensive and made of a synthetic resin member such as plastic has been used long. In particular, it has become popular as a piping material for locations where semi-permanent durability such as concrete troughs is not required and there is no risk of a large impact.

[0004]

[Problems to be solved by the device]

 However, when a pipe material such as plastic is laid outdoors, it expands and contracts due to changes in ambient temperature, and the amount of expansion and contraction increases in proportion to the length. Therefore, when this conduit is firmly fixed, the conduit material is distorted by the expansion and contraction of itself, and when this distortion is large, it is deformed or damaged. On the other hand, if it is held loosely by a saddle band, etc., there is a problem that the pipeline may vibrate and deteriorate, or it may move.

In order to deal with such a problem, a resinous inclusion is provided between the fixing member and the pipe material, or a flexible member such as a union is provided between the pipe material and the pipe material. Although it has a structure that allows expansion and contraction even when the pipe line material is firmly fixed by means such as providing a joint, there is a problem in that cost and construction work are required. The present invention has been made in view of the above-mentioned points, and allows expansion and contraction of a piping material formed of a synthetic resin member that is long and expands and contracts in the longitudinal direction according to a temperature difference, and prevents stress concentration. The purpose of the present invention is to provide a retainer for piping materials that can be fixed without causing stress deterioration.

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, according to the present invention, a synthetic resin long body including a main body in which a storage part and a pedestal are integrally formed, and a lid body fitted and mounted in the storage part of the main body. Lower pressers for mounting the pedestal of scale pipe material and being fixed on the pedestal, and arranged on the left and right sides of the pedestal, one side is fixed to the left and right sides of the lower presser respectively, The other side is in contact with the upper surface of each side portion of the pedestal, and is provided with an upper pressing member that presses the lower pressing member so as to be slidable in the longitudinal direction.

Further, the presser foot is formed in substantially the same shape as the cross-sectional shape of the pipe member, is fitted onto the pipe member from above, and the lower ends of the left and right side walls are pressed together with the upper presser member to the lower presser member. The cover is fixed to the bait.

[0008]

[Action]

 After fixing the lower presser on the specified mount, place the piping material, and lightly press the left and right side parts of the pedestal between the lower presser and the lower presser to fix them slidably. Suru This allows the pedestal to expand and contract in the longitudinal direction due to temperature changes. Furthermore, when connecting the piping materials with the lower presser, the cover is fitted from above the piping material, and the lower ends of the left and right side walls are fixed to the lower presser together with the left and right upper pressers. Cover the seams.

[0009]

Embodiment An embodiment of the present invention will be described below in detail with reference to the accompanying drawings. First, a piping material to which the piping material holder according to the present invention is applied will be briefly described. In FIG. 1, a piping material 1 has a half-split cylindrical shape, and is composed of a semi-cylindrical lower main body 2 and an upper lid 3 and has an outer diameter of 15 to 20 cm and a length of 2 to 3. It is formed in a long length of about m. The main body 2 and the lid body 3 are each made of a synthetic resin member, for example, by a modified forming method. The length of the piping material 1 is set in consideration of transportation and workability, but it may be set to an appropriate length depending on the purpose of use.

The main body 2 is provided with a semi-cylindrical storage portion 2a, a pedestal 2b continuously provided at a lower portion of the storage portion 2a, and a pedestal 2b that hangs down from left and right open ends of the storage portion 2a. The reinforcing side walls 2c and 2c 'are integrally formed over the entire length. A recess 2e for positioning (centering) is formed in the center of the lower surface of the pedestal 2b, and ridges 2f, 2f 'are formed on the left and right ends with slight gaps between the side walls 2c, 2c' over the entire length. It is provided. These ridges 2f and 2f 'are used as locking portions for the pressing device of the present invention described later (hereinafter referred to as "locking portions 2f, 2f'").

On the outer side surfaces of the upper portions of the left and right side walls 2c, 2c ', ridges 2g, 2g' are provided in an ear shape along the longitudinal direction over the entire length, and these ridges 2g, 2g 'are It is used as an engaging portion with the lid body 3 (hereinafter referred to as "locking portions 2g, 2g '"). Further, on the left and right open end surfaces 2d, 2d 'of the storage portion 2a, ridges 2h, 2h' are formed in a stepped shape on the outer edge over the entire length.

The lid 3 corresponds to the left and right locking portions 2g, 2g ′ of the main body 2 on the outer surface near the left and right opening ends, and the inverted L that can be externally fitted to these locking portions 2g 1, 2g ′. Mold hooks 3a and 3a 'are formed continuously. The hooks 3a, 3a 'are formed with locking claws 3b, 3b' on their inner surfaces at their lower ends, respectively, and can be engaged with the corresponding locking portions 2g, 2g 'of the main body 2.

The outer surface of the lid body 3 in the vicinity of the open ends 3d and 3d ′ is thinned from the roots of the hooks 3a and 3a ′ toward the open end, and has a tapered surface on the inner surfaces of the ridges 2h and 2h ′. Corresponding tapered surfaces are fitted between the left and right ridges 2h and 2h 'of the main body 2 so that the opening end surfaces 3d and 3d' come into contact with the opposing opening end surfaces 2d and 2d 'of the storage portion 2a. It

When the lid 3 is attached to the main body 2, the open end surfaces 3d and 3d ′ of the semi-cylindrical lid 3 face the open end surfaces 2d and 2d ′ of the storage portion 2a, and the left and right hooks 3a and 3a ′ are attached. The tip ends of the two are placed on the upper surfaces of the left and right engaging portions 2g, 2g 'of the main body 2, and the substantial center of the upper surface is pressed. When a pressing force is applied to the lid body 3, the hooks 3a and 3a 'spread downward and descend, and the tips of the locking claws 3b and 3b' enter the lower side of the locking portions 2g and 2g '. At the same time, the left and right open ends of the lid body 3 are fitted in between the left and right ridges 2h, 2h 'of the open end of the storage portion 2a of the body 2. In this way, the lid 3 is attached to the main body 2, and a cylindrical cable storage space is formed between them.

As a result, the lid body 3 is attached to the main body 2 and is locked so as to be slidable along the longitudinal direction and not loose in the left-right (lateral) direction without being able to deviate. Since the lid 3 is slidable with respect to the main body 2 in the longitudinal direction, the lid 3 is allowed to expand and contract in the longitudinal direction due to the temperature difference between cold and warm. The amount of expansion and contraction due to the temperature difference between the main body 2 and the lid 3 varies depending on the length, material, etc., but the length is about 2 to 3 m, and if the temperature difference is about 50 ° C, it will be around 10 mm. is there.

Next, the pipe material retainer of the present invention will be described. In FIG. 1, the presser foot 5 is composed of a lower presser foot 6, upper presser tools 7 and 7 ′, and a cover 8. The lower presser 6 is for mounting the joint portion of the main body 2 and for centering when a large number of pipe materials 1 are connected. The upper pressers 7, 7'fix the seam portion of the main body 2 to the lower presser 6 so as to be slidable in the longitudinal direction. Further, the cover 8 is fitted and closed on the joint portion of the lid body 3, and the lid body 3 is fixed to the lower presser 6 together with the main body 2 so as to be slidable in the longitudinal direction.

As shown in FIGS. 2 and 3, the lower presser 6 has a width wider than that of the pedestal 2b of the main body 2 and a length of the lower presser 6 which is adjacent to each other. A flat plate having a sufficient length (for example, several tens of cm) for connection, and a positioning projection 6a for fitting with a recess 2e provided in the lower center of the base 2b of the main body 2 along the longitudinal direction at the center. It is formed so as to project upward and along the longitudinal direction, and notches 6b, 6b 'for inserting bolts are provided in the center of both left and right sides.

Further, the lower presser 6 has holes 6c, 6c, 6c ', 6c' for inserting bolts formed on both front and rear sides of the left and right notches 6b, 6b '. The distance between the left and right holes 6c, 6c and 6c ', 6c' is set to be outside the left and right ends of the pedestal 2b of the main body 2. As shown in FIGS. 4 and 5, the upper presser foot 7 has the same length as that of the lower presser foot 6, and one side 7a is a flat plate and has holes 6c and 6c of the lower presser foot 6. Correspondingly, holes 7c, 7c for inserting bolts are formed. The other side 7b of the upper pressing member 7 is bent upward at a right angle, further horizontally bent, and then bent downward again at a right angle to form a substantially inverted L-shape in end view. One side 7a of the upper presser tool 7 is a fixing part for fixing to the lower presser tool 6 (hereinafter referred to as "fixing part 6a"), and the other side 7b suppresses the pedestal 2b of the main body 2 of the piping material 2. (Hereinafter referred to as "locking portion 7b").

As shown in FIG. 6, the engaging portion 7b of the upper pressing member 7 has an inner diameter between the vertical portion 7d and the downwardly depending tip 7f slightly smaller than the width of the ridge 2f of the pedestal 2b of the main body 2. The width is set wide, and a slight clearance δ is formed between the vertical portion 7d, the tip 7f, and the ridge 2f. As a result, the ridge 2f can be slightly adjusted left and right between the vertical portion 2d and the tip 2g.

Further, in the upper presser member 7, the height from the lower surface of the fixed portion 7a to the lower surface of the horizontal portion 7e is substantially the same as the height from the lower surface of the pedestal 2b to the upper surface of the ridge 2f (extremely high. The height from the lower surface of the horizontal portion 7e of the locking portion 7b to the lower surface of the tip 7f is set slightly lower than the height from the upper surface of the pedestal 2b to the upper surface of the locking portion 2f. And is separated from the upper surface 2b '. Further, the tip end 7f of the engaging portion 7b is loosely fitted into the gap between the engaging portion 2f of the main body 2 and the side wall 2c.

The upper pressing member 7 is brought into contact with the upper surface of the locking portion 2f of the main body 2 by the horizontal portion 7e of the locking portion 7b, and the tip 7f does not contact the upper surface 2b ′ of the pedestal 2b, and the lower pressing member 6 is set to lightly press the 2f. As a result, the upper presser 7 can press the main body 2 on the lower presser 6 with sufficient length so as to be slidable in the longitudinal direction. The upper pressing member 7 ′ is formed in the same manner as the upper pressing member 7.

As shown in FIGS. 7 to 9, the cover 8 has a substantially Ω shape in an end view, and the left and right ends 8a and 8 ′ rise vertically to the side portions 8b and 8b ′, and the upper portion 8c has a substantially vertical shape. It is formed in a semicircular shape. The lower portions 8d and 8d 'of the side walls 8b and 8b' form a step, and the substantially central portions 8e and 8e 'are bulging portions that bulge outward in the shape of a square ear.

The outer sides of the left and right ends 8a and 8a 'of the cover 8 are set to be the same as the width of the lower presser 6, and the lower portions 8d and 8d' are set to the upper pressers 7 and 7'and the side walls 8b. , 8b 'are formed on the side walls 2c, 2c' of the main body 2, the bulged portions 8d, 8d 'are formed on the hooks 3a, 3a' of the lid 3, and the upper portion 8c is formed on the lid 3. The cover 8 is for covering the joint between the adjacent lids 3 and does not need to have the same length as the lower presser 6 for placing and supporting the end of the main body 2, and the joint of the lid 3 is not necessary. It suffices that the length be longer than the interval of, and it is set shorter than the lower presser 6 as shown in FIG.

Further, a cutout 8f is provided from the center side end surface of the one end 8a to the lower portion 8d of the side wall 8b and slightly below the bulging portion 8e. The notch 8f is a window for preventing interference with a fixing nut screwed to a bolt that is inserted through the notch 6c of the lower presser tool 6 and for making the gap between the seams visible from the lower side, and its width is The spacing required for the joint when connecting the pipe members 1 to each other, that is, wider than the amount of extension of the adjacent pipe members in the longitudinal direction is set. Holes 8g and 8g for inserting bolts are formed on both front and rear sides of the notch 8f so as to correspond to the holes 6c and 6c of the lower presser 6. Similarly, the other end 8a 'is also provided with a notch 8f' and bolt insertion holes 8g, 8g '.

The lower presser 6, the upper presser 7, and the cover 8 are made of, for example, a stainless member having excellent corrosion resistance and rust resistance. Hereinafter, a case where the piping material 1 is laid along, for example, a railroad track, and is fixed to a pedestal by the retainer 5 will be described. As shown in FIGS. 10 and 11, the pedestal, for example, the channel bar 10, is a base installed at a predetermined height from the ground at a predetermined distance along the railroad track, that is, at the same distance as the length of the piping material 1. It is fixed to (not shown). The channel 10 is provided with a slit 10a on the upper surface in the longitudinal direction, a bolt for fixing the lower presser 6 can be inserted therein, and both side edges 10b, 10b 'of the slit 10a are stoppers of the fixing bracket. It is said that.

Brackets 11 and 11 ′ are housed in each channel bar 10 at predetermined intervals, and both side portions are welded and fixed to both side edges 10 b and 10 b ′ of the slit 10 a. Bolts 12 and 12 'are provided in the bolt holes of these brackets 11 and 11' so as to project from the inside through the slit 10a and project upward, and the heads of the brackets 11 and 11 '. It is fixed by welding.

The lower presser 6 is placed on the channel bar 10, bolts 12 and 12 'are inserted into the left and right cutouts 6b and 6b' (FIG. 2), and the nuts 13 and 13 'are firmly fixed. The lower presser 6 can be slightly adjusted to the left and right with respect to the bolts 12 and 12 ′ fixed by welding because the bolt insertion portions are notches 6 b and 6 b ′, that is, with respect to the channel bar 10. it can. In this way, the lower retainer 6 is fixed to each channel bar 10.

Next, the main body 2 of the piping material 1 is sequentially arranged between the adjacent lower pressers 6, and the front and rear ends of the pedestals 2b of the adjacent main bodies 2 are placed on both sides of each lower presser 6, respectively. Moreover, the positioning projections 6a of the respective lower pressers 6 are fitted into the positioning recesses 2e of the pedestal 2b. As a result, the main body 2 is accurately positioned on the lower presser 6, and the adjacent main bodies 2 and 2 are center-aligned. At this time, as shown in FIG. 10, a predetermined gap is provided between the opposing end faces of the adjacent main bodies 2 and 2. This interval is set to be slightly wider than the extension amount of the main body 2 due to the temperature difference as described above. Next, for example, the left upper presser foot 7 is placed on the lower presser foot 6, and the locking portion 7b is locked to the respective locking portions 2f, 2f at the ends of the adjacent main bodies 2, 2. The bolt holes 7c (FIG. 4) of the fixing portion 7a are aligned with the bolt holes 6c (FIG. 2) of the holding tool 6. The same applies to the left upper pressing member 7 '.

Next, the cover 8 is placed above the joint between the adjacent lids 3 and 3 and is externally fitted while pressing the upper portion 8c. The left and right side walls 8b and 8b 'are laterally pushed apart when the hooks 3a and 3a' of the lid 3 are crossed, and these hooks 3a and 3a 'are housed in the respective bulging portions 8e and 8e'. And elasticity returns to the original state, at which time a sound is generated. This allows the operator to recognize that the cover 8 has been attached. The lower portions 8d, 8d 'of the side walls 8b, 8b' cover the locking portions 7b, 7b 'of the upper pressers 7, 7', and the both ends 8a, 8a 'are the fixing portions 7a of these upper pressers 7, 7'. , 7a '. Further, the left and right bolt holes 8g, 8g '(Fig. 8) are aligned with the bolt holes 7c, 7c' (Fig. 4) of the fixing portions 7a, 7a 'of the upper pressers 7, 7'.

After mounting the cover 8 in this manner, the bolts 15 are inserted into the bolt holes 6c, 7c and 8g of the upper presser foot 7 and the cover 8 from the lower side of the lower presser foot 6 and the nuts 16 are screwed. The upper presser foot 7 and the cover 8 are firmly fixed to the lower presser foot 6. As a result, the pipe member 1 is fixed to the lower presser 6, and the joint between the adjacent pipe members 1 and 1 is closed by the cover 8. After the cover 8 is attached, check the intervals between the seams between the adjacent main bodies 2 and 2 and the lids 3 and 3 and the expansion and contraction thereof from the cutouts 8f and 8f 'on both sides 8b and 8b' of the cover 8. be able to.

As shown in FIG. 6, the upper presser member 7 lightly presses the upper surface of the locking portion 2f of the main body 2 by means of the smooth horizontal portion 7e of the locking portion 7b, so that the main body 2 expands and contracts in the longitudinal direction. It is also possible to prevent the deterioration due to stress concentration due to the sufficient length of contact. Further, since the tip end 7f of the locking portion 7b is slightly separated from the upper surface 2b 'of the pedestal 2b, concentrated stress is prevented from being applied to the pedestal 2b. The cover 8 is also lightly contacted with the lid body 3 and externally mounted, so that the lid body 2 can be expanded and contracted and stress deterioration is prevented.

Further, in the locking portion 7b of the upper presser member 7, as described above, the interval between the vertical portion 7d and the tip 7f is set to be slightly wider than the width of the locking portion 2f of the main body 2. It can be adjusted slightly to the left and right due to the presence. The upper presser foot 7'is similar to the upper presser foot 7. Therefore, when fixing the piping material 1 to the lower presser 6, so-called degree piping is possible.

In this way, after laying the piping material over a long distance (for example, 1 to 2 km), a cable such as a communication line is passed. That is, a pulling wire is inserted from one open end of the piping material to be continuous, the tip of the cable to be laid is fixed to the rear end of the wire, and the wire is pulled from the other end of the piping material to pull the cable. Insert it. This cable laying method has good work efficiency. The seam between the adjacent pipe members 1 and 1 is closed by the cover 8, and the lid body 3 does not come off.

It should be noted that in the above embodiment, the holding fixture 5 is described as being used at the joint of the piping material 1, but the present invention is not limited to this, and it can also be used in the middle part of the piping material 1. It may be fixed to 10 or the like. And in this case, the cover 8 does not necessarily have to be attached. However, it is necessary to use the cover 8 when the presser foot 5 is used in the seam as in the embodiment.

[0035]

[Effect of device]

 As described above, according to the present invention, after the lower presser is fixed on a predetermined frame, the rear pipe is placed, and the left and right upper pressers are used to lower the left and right sides of the pedestal of the pipe respectively. Since it is lightly pressed against the tool and fixed so that it can slide, expansion and contraction due to temperature changes of the pipe can be allowed, and it can be attached to the frame without concentrating stress on the fixed part, It can be fixed at low cost and with good workability.

Further, when connecting the piping materials with the lower presser, the cover is fitted from above the piping material and fixed to the lower presser together with the upper presser so that the joint between the adjacent pipe materials is covered. Therefore, the cables that can be stored can be well protected, and so on.

[Brief description of drawings]

FIG. 1 is an end view showing an embodiment of a holding member for a piping material according to the present invention.

FIG. 2 is a plan view of a lower retainer of the pipe material retainer shown in FIG.

3 is a front view of the lower presser of FIG. 2. FIG.

FIG. 4 is a plan view of an upper presser foot of the piping material presser tool of FIG. 1;

5 is a front view of the upper presser foot of FIG. 4. FIG.

6 is an enlarged view showing the engagement relationship among the lower presser foot, the upper presser foot, and the locking portion of the piping material of the presser foot tool of FIG. 1. FIG.

7 is a front view of the cover of the presser foot of FIG. 1. FIG.

8 is a bottom view of the cover of FIG. 7. FIG.

9 is a side view of the cover of FIG. 7. FIG.

FIG. 10 is a side view of FIG.

11 is a cross-sectional view taken along the arrow line XI-XI in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Piping material 2 Main body 3 Lid 5 Presser foot 6 Lower presser 7, 7'Upper presser 8 Cover 10 Frame (channel) 11, 11 'Bracket

Claims (2)

[Scope of utility model registration request] 1. A main body (2) in which a storage section (2a) and a pedestal (2b) are integrally formed, and a lid body (3) fitted and attached to the storage section (2a) of the main body (2). The pedestal (2b) of the long pipe material (1) made of synthetic resin composed of
And a lower presser tool (6) which is fixed on the pedestal (10) and is arranged on both left and right sides of the pedestal (2b), and one side (7
a, 7a ') are fixed to the left and right sides of the lower presser (6) respectively, and the other sides (7b, 7b') are fixed to the pedestal (2).
An upper pressing member (7, 7) which is abutted on the upper surface of each side of b) and presses slidably in the longitudinal direction between the upper pressing member and the lower pressing member (6).
7 '), and a presser for piping material, characterized in that 2. A main body (2) in which a storage section (2a) and a pedestal (2b) are integrally formed, and a storage section (2) of the main body (2).
The pedestal (2b) of the synthetic resin long pipe material (1) configured by the lid body (3) fitted and attached to a) is mounted and fixed on the pedestal (10). The lower retainer (6) and the left and right sides of the pedestal (2b) are arranged on one side (7).
a, 7a ') are fixed to the left and right sides of the lower presser (6) respectively, and the other sides (7b, 7b') are fixed to the pedestal (2).
An upper pressing member (7, 7) which is abutted on the upper surface of each side of b) and presses slidably in the longitudinal direction between the upper pressing member and the lower pressing member (6).
7 ') and the cross-sectional shape of the pipe material (1), and is fitted onto the pipe material (1) from above, and the lower ends () of the left and right side walls (8c, 8c'). 8a, 8a ') is provided with a cover (8) fixed to the lower presser (6) together with the upper presser (7, 7').