JP2848909B2 - Collective piping fixing method by multi-stage arrangement - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention generally relates to a metal pipe or resin having a relatively small diameter of about 15 m / m or less as a fuel pipe, a vacuum pipe, a hydraulic pipe, or the like for an automobile or the like. The present invention relates to a method for fixing a collective pipe by a multi-stage arrangement related to the collective arrangement of tubes (hereinafter simply referred to as pipes).

(Prior Art) Conventionally, as a method for fixing a collective pipe by such a multi-stage arrangement, a separate resin molded generally by providing a clamping claw wall for a plurality of pipes on the surface in a state where the pipe is bent in advance is generally used. By using a clamp body made of a material or a clamp body made of a separate resin material formed by a pair of mating shapes, the straight pipe portions on the respective pipe sides are pressed and engaged with the respective claw wall portions of the clamp body to be in parallel. Or fixed in an array by attaching them to a pair of semicircular concave grooves provided between opposed surfaces of the mating shape and attaching them together in parallel by hooking means with claw walls. Was.

(Problems to be Solved by the Invention) However, in such a conventional fixing method, since the fixing is performed by the clamp body which is formed separately in advance, the piping is assembled to each of the holding claw wall portions or the concave groove portions. Not only is the mounting work extremely troublesome, the workability is remarkably reduced, but also the nail walls forming the clamping walls or the mutual hooking means are defective, or the aging fatigue and the aging fatigue of these nail walls for a long period of time. In general, fixing is unstable, such as partial separation on the piping side due to vibration, etc., and in the case of piping made of resin tubes, it is crushed and deformed due to variation in the degree of clamping at the fixed part And has problems such as obstructing distribution. Furthermore, because they are simply arranged and fixed in a parallel direction,
In particular, restrictions on collective piping due to the multi-stage arrangement were forced,
At the same time, the clamp body itself is made long, which often causes problems in a narrow space or the like.

The present invention has been made in view of the above-mentioned problems of the related art, and even if it is a collective pipe with a multi-stage arrangement, it eliminates the trouble of the assembling work and remarkably improves productivity, and at the same time, on the pipe side. In addition to making sure that there is no worry about detachment, it secures the fixation, eliminates crushing and deformation at the fixed part even with piping made of resin tube, further expands the arrangement restrictions of collective piping, and makes the clamp body compact. It is an object of the present invention to propose a method for fixing a collective pipe that can be used even in a narrow space and that can be used in a multistage arrangement.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a plurality of pipes each having a relatively small diameter by penetrating both side walls in one mold composed of a pair of split molds and hollowing the inside. While maintaining a mutual interval in the assembly holes leading to the part and arranging them in a substantially parallel manner,
Insert the pipe and set it in the hollow part,
Thereafter, a molten material of a thermoplastic resin is injected into the hollow portion from the hollow portion of the mold, filled, and then cooled and solidified, whereby the pipe is cast and buried, and is orthogonal to the side wall surface. A groove is formed over the outer side surface and the outer bottom surface, and the base side associated with the primary molding as a clamp body having at least one set groove having a substantially semicircular shape extending in the width direction is formed on the upper surface. In a state in which the pipes having the same small diameter are successively placed and arranged in the respective set groove portions, a substantially semicircular shape which is opposed to the set groove and communicates with the inner hollow portion on both side wall surfaces thereof is formed. Injection of the molten resin material into the hollow portion inside the mold and the groove portion of the side wall of the base by the other mold provided with the engagement groove, and secondary molding accompanying filling, thereby forming a groove portion on the upper surface of the base. Form the lid side to enclose, then cool The pipe assembly fixing method according multistage sequence comprising brought fixed buried collectively cast deposition by performing the process in which the subject matter.

(Operation) Since the present invention is based on such a fixing method, a plurality of pipes are cast and buried in parallel in a parallel manner, followed by forming a side wall of a base body as a clamp body accompanying primary forming, and a plurality of pipes arranged on the upper surface thereof. The pipes are similarly cast and buried by secondary forming by forming a lid body enclosing the base side and fixed in multiple stages, so that even in the case of a collective pipe with a multistage arrangement, troublesome work of assembling the pipes is troublesome. Can be easily and reliably fixed by eliminating the problem. Therefore, productivity is remarkably improved, and there is no fear of detachment at the fixed portion. By using a resin material with a lower melting point on the body side than the melting point of the resin tube, crushing and deformation at the fixing part can be eliminated, and furthermore, it is possible to collectively collect by fixing by multi-stage arrangement That it will be expanded a sequence limit of the pipe, and thus can also be used if there clamp body 狹 have space without compact.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.
FIG. 1 is a plan view of a collective array formed by the collective piping fixing method according to the multistage arrangement of the present invention, FIG. 2 is a side view of FIG. 1, and FIG. 3 is a view of the molded clamp of FIG. FIG. 4 is a perspective view of the molded lid body side of FIG. 1, FIG. 5 and FIG. 6 are explanatory views showing the steps of the method of the present invention, and FIG. Bending pipe diameter 6m / m3
A metal tube (lower) consisting of a book and approximately 6 m thick, approximately parallel to the lower
/ m is a pipe made of a resin tube (upper) made of three nylon-11s. First, a pipe (P) made of a lower metal pipe is placed in one of a pair of split molds. The straight pipe portion of the pipe (P) is inserted through the mounting holes (2) that penetrate and communicate with the internal rectangular hollow portion in a state of being arranged in a substantially parallel manner with a space therebetween. And the molten material of thermoplastic resin consisting of polyethylene is injected from the spout into the hollow part by injection pressure.
Injected and filled at 250 kg / cm ² . Then, by performing a cooling process by flowing cooling water into the inside of the mold and solidifying, a U-shape is formed over the outer surface and the outer bottom surface perpendicular to the side wall surface where the straight pipe portion is cast and buried. A base body (1) for primary molding as a clamp body having a concave groove (3) and a plurality of substantially semicircular set grooves (4) arranged in parallel at intervals in the width direction on the upper surface.
The side is formed (FIG. 5). Subsequently, in a state where the tubes (P) are placed and arranged in substantially the same direction in the respective set grooves (4), the tubes (P) are opposed to the respective set grooves (4) and provided on both side wall surfaces. With the other mold provided with a substantially semicircular engagement groove communicating with the internal hollow portion, a molten material of the same polyethylene resin is injected at an injection pressure of 150 kg / cm ^{2 into} the hollow portion and the U-shape of the mold. The upper surface of the substrate (1) and the lid (5) that covers the concave groove (3) portion from the upper surface by secondary molding accompanying injection and filling into the concave groove (3) portion. , And then subjected to a cooling process to obtain a collective array of pipes in a multi-stage arrangement which was buried in a lump and fixed.
Figure).

In the above-described embodiment, one substrate side is provided. However, a plurality of substrates (1) in which the pipe (P) is cast and embedded are stacked and collectively formed when the lid (5) is formed. It can also be fixed. Further, the pipes (P) need only be in a substantially parallel state, and need not necessarily be parallel to each other, may be fixed at an angle, and may have a large angle between stages.

Further, although it is indispensable to consider that the pipe (P) is a metal pipe, in the case of a resin tube, as a combination related to the melting point of the base (1) or the lid (5) forming the clamp body, For example, nylon-6 on the resin tube side,-
For 6.6, -11 and -12, a thermoplastic resin material having a melting point lower than that of the resin tube made of nylon, vinyl chloride, polypropylene, ABS, polyacetal, or the like is appropriately selected and used as a clamp body. Things.

(Effects of the Invention) As described above, the method for fixing a collective pipe by a multi-stage arrangement according to the present invention, in particular, following the formation of the base (1) side as a clamp body accompanying the primary molding, the base on the upper surface thereof A plurality of pipes (P) are arranged in multiple stages by secondary forming by forming a lid (5) enclosing the side, and are buried at once by casting. ) Can be easily and securely fixed without the hassle of assembling work, resulting in a marked improvement in productivity. At the same time, there is no fear of detachment at the fixed part, and there is no need to dispose the resin tube. However, it is possible to eliminate crushing and deformation at the fixing part in relation to the difference in melting point between the clamp body and each other, and further to increase the arrangement restriction of the pipes which are collectively concentrated by the multi-stage arrangement. This is a very useful multistage arrangement fixing method for a collective pipe associated with these configurations, which makes the pump compact and convenient in a narrow space.

[Brief description of the drawings]

FIG. 1 is a plan view of a collective array constituted by a collective piping fixing method using a multistage array according to one embodiment of the present invention, FIG. 2 is a side view of FIG. 1, and FIG. 3 is a molding of FIG. FIG. 4 is a perspective view on the side of the formed lid body of FIG. 1, and FIGS. 5 and 6 are explanatory views showing the steps of the method of the present invention. (1) ... base, (2) ... assembly hole, (3) ... concave groove, (4) ... set groove, (5) ... lid, (P) ...
Piping.

Claims (1)

(57) [Claims] 1. A plurality of pipes each having a relatively small diameter are spaced from each other in an assembling hole which penetrates both side walls of one of a pair of split molds and communicates with an internal hollow portion. And the pipes are set in such a manner that they are located in the hollow portion, and thereafter, a molten material of a thermoplastic resin is injected into the hollow portion from a spout portion of a mold, filled, and then cooled. By performing processing and solidifying, the pipe is cast and buried, and a groove is formed on the outer side surface perpendicular to the side wall surface and the outer bottom surface, and a substantially semicircle extending in the width direction on the upper surface. With the base side accompanying the primary molding as a clamp body having at least one set groove having a shape, a pipe having the same small diameter is further placed and arranged in each of the set grooves, Both of them are located opposite to the set groove. Injection of the molten resin material into the hollow portion of the inner mold and the concave groove portion of the base side wall by the other die having a substantially semi-circular engagement groove communicating with the hollow portion of the interior wall surface,
A multi-stage arrangement characterized by forming a lid side enclosing a concave portion on the upper surface of the base by secondary molding accompanying filling, and then performing a cooling process to collectively cast and bury and fix it. How to fix collective piping.