JPH1089585A - Piping cover - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve handleable properties and usable properties by forming a piping cover connected to the end part of a piping housing duct by a connecting cylindrical part composing an install part installed on a wall surface, and a concealed part which is detachable to the installing part, and a cylindrical part for cutting which is formed integratedly with the concealed part of the connecting cylindrical part. SOLUTION: In case of use, an installing part 2 of a connecting cylindrical part 1 is arranged on a prescribed position of a wall surface, a piping housing duct A is connected to an installing part 2, and piping housing work is carried out. The concealed part 13 of the connecting cylindrical part 1 is engaged with the installing part 2 so as to make the side end surface of the folding wall 22 of a cylindrical part 20 for cutting abut on the side end surface of an opposing side wall 6 of the installing part 2. At this time, a guide piece 12 arranged on the installing part 2 abuts on the inner circumferential surface of the folding wall 22, the concealed part 13 and the cylindrical part 20 for cutting are guided to an engaging position, and thereby, the positioning of the installing part 2 and the concealed part 13 can be carried out easily. When the concealed part 13 is push-pressed in a condition abutting on the upper end of the projection wall part 7 of the installing part 2, the opposing side wall 6 is sagged inward, and the installing part 2 an the concealed part 13 are engaged with each other.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe cover which is connected to an end of a pipe accommodating duct disposed along a wall surface and conceals and protects a drawn portion of a pipe.

[0002]

2. Description of the Related Art A pipe cover of this type is disclosed, for example, in Japanese Utility Model Laid-Open Publication No. 62-146096.
That is, it is connected to the end of a substantially cylindrical pipe accommodating duct provided along the wall surface, and is connected to the connecting tube portion formed of a pair of divided bodies and held by the connecting tube portion. And a cutting tubular portion that is tapered and cut appropriately.

[0003] One end of the connecting cylinder is fitted into the pipe accommodating duct, and the other end of the connecting cylinder is fitted with a cutting cylinder. It is connected to one of the divided bodies. In addition, a plurality of circumferential grooves are provided on the outer circumference of the cutting cylinder at predetermined intervals in the axial direction. Since the cutting cylinder is formed in a tapered shape, by selecting one of the peripheral grooves and cutting the cutting cylinder along the peripheral groove, the size of the end opening of the cutting cylinder is increased. Can be changed to a desired size.

This is used, for example, as follows. First, one of the divided bodies of the connecting cylinder is disposed at a predetermined position on the wall surface. Thereafter, the pipe accommodating duct is disposed on the wall surface such that an end thereof is fitted into one of the divided bodies, and a pipe accommodating operation is performed. The cutting cylinder was temporarily held by one of the divided bodies so that the pipe was inserted inward, and the other divided body was connected to the one of the divided bodies, thereby holding the cutting cylinder. The connection tube connects to the pipe housing duct.

[0005]

However, in the above-mentioned structure, the connecting tube is divided into a pair of divided bodies, and the cutting cylinder is held by the two divided bodies, so that the number of parts is increased. There is a problem that it is difficult to handle. Also,
In the above, there is a problem that the cutting cylinder has to be extrapolated from the end of the pipe to the position of one of the divided bodies, and the work of disposing the cutting cylinder is troublesome. further,
In the above-described apparatus, when it becomes necessary to cut the cutting tube after being disposed, it takes time and effort to remove the cutting tube, and after the cutting, it is necessary to perform a troublesome arrangement again. Therefore, there is a problem that it takes a lot of work after all.

In order to solve these problems, it is conceivable to divide a cylindrical body in which a connecting cylindrical part and a cutting cylindrical part are continuously connected by a line substantially parallel to a wall surface. There is a problem that the cutting cylinders must be individually cut, and the cutting operation is troublesome. In addition, it is easy to cause an error that the cutting cylinder is cut by a different circumferential groove in each divided body. On the other hand, when cutting is performed in a state where the two divided bodies are connected, the connection state becomes unstable due to the pressure applied during the cutting, and the cutting cannot be performed well. Furthermore, if it becomes necessary to cut the cutting cylinder after it is once attached to the wall, it is difficult to remove and reattach the divided body near the wall, and it takes a lot of time and cuts easily. There is a problem that cannot be done.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an easy-to-use piping cover.

[0008]

In order to achieve the above object, a pipe cover according to claim 1 is connected to an end of a substantially cylindrical pipe housing duct disposed along a wall surface. A connecting tube portion comprising a mounting portion attached to a wall surface and a concealing portion detachable from the mounting portion, and a connecting tube portion tapered from the connecting tube portion and appropriately cut off, and a concealing portion of the connecting tube portion. And a cutting cylinder formed integrally with the cutting cylinder.

The pipe cover according to claim 2 is configured such that the cutting cylinder portion according to claim 1 is provided with an opening that opens from one end in the axial direction to the other end on the side facing the wall surface. .

According to a third aspect of the present invention, there is provided a pipe cover, wherein the connecting tubular portion according to the first or second aspect has a guide portion for guiding an integrated concealing portion and a cutting tubular portion to a predetermined position at a mounting portion thereof. Is provided.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

The pipe cover is made of, for example, a hard resin, and includes a connecting tubular portion 1 and a cutting tubular portion 20, as shown in FIG.

The connection tube portion 1 is connected to an end of a substantially cylindrical pipe accommodating duct A provided along the wall surface. The connection tube portion 1 is attached to the wall surface, and is detachable from the attachment portion 2. And a concealment unit 13. These mounting part 2 and concealing part
13 is divided parallel to the wall surface.

The mounting portion 2 is, as shown in FIGS.
The mounting wall 3 to the wall surface and the opposing side walls 6, 6 form a substantially U-shape. At approximately the center of the mounting wall 3, a screw hole 4 for screwing to the wall surface is provided. On the inner peripheral side of the mounting wall 3, there is provided a positioning protrusion 5 which can be positioned by contacting the end face of the pipe accommodating duct A to be connected. The opposing side wall 6 is provided with a protruding wall portion 7 protruding inward with a predetermined thickness, and one side end surface of the protruding wall portion 7 has a positioning step portion 8 having the same function as the positioning protruding portion 5. It has become. The projecting wall portion 7 is provided with a screw insertion portion 9 through which a screw is inserted perpendicularly to the mounting wall 3. The protruding wall portion 7 is
An engagement recess 10 is provided on the outer wall of the upper end portion as an engaged portion that engages with an engagement claw 16 provided on a concealing portion 13 described later. The upper end of the protruding wall 7
It is formed in a substantially arc shape.

A contact piece 11 is provided at the upper end of the opposing side wall 6 to contact the inner wall of the concealing portion 13. Further, a guide piece 12 is provided at a side end of the opposing side wall 6 as a guiding part for guiding a concealing part 13 and a cutting tubular part 20 described later. The guide piece 12 is provided continuously from the inner surface of the side end of the opposing side wall 6, abuts against the inner peripheral wall of the cutting cylinder 20, and is guided to the engagement position between the mounting section 2 and the concealing section 13.

The concealing unit 13 is, as shown in FIGS.
A top plate wall 14 facing the mounting wall 3 of the mounting portion 2 and a joining wall continuously provided at both ends thereof and connected to the opposing side walls 6, 6 of the mounting portion 2.
It consists of 15,15. On the inner periphery of the joining wall 15, an engaging claw 16 is provided to protrude inward as an engaging portion that engages with the engaging concave portion 10 of the mounting portion 2. The engaging claw 16 has a flat portion 17 on the side close to the top plate wall 14, and an arc portion 18 drawing an arc in the projecting direction on the opposite side.
Are provided respectively. Also, the joint wall 15 has a mounting portion
A screw insertion hole 19 that can communicate with the second screw insertion portion 9 is provided.

The cutting tube portion 20 is formed by integrally molding the mounting portion 2 and the concealing portion 13 constituting the connection tube portion 1 with the end of the concealing portion 13 as a base end. This cutting cylinder 20
As shown in FIGS. 6 to 10, a connecting wall 21 is provided in the axial direction from the concealing portion 13, and bent walls 22 are provided in the circumferential direction from both sides of the connecting wall 21. . The bent wall 22 is connected to the opposing side wall 6 with the side end face in contact with the side end face of the opposing side wall 6 of the mounting part 2 when the mounting part 2 of the connection cylinder part 1 and the concealing part 13 are engaged. , And is erected on the wall with the lower end surface in contact with the wall. In addition, the opposite side of the connecting wall 21 of the cutting cylinder 20, that is, the side facing the wall surface, is an opening 23 that opens from one end to the other end in the axial direction.

The connecting wall 21 and the bent walls 22, 22 are connected to the cutting cylinder 20.
The cutting cylinder 20 is tapered. A plurality of cutting grooves 24 are provided at predetermined intervals in the axial direction on the outer periphery of the connecting wall 21 and the bent walls 22 and 22. By appropriately selecting this cutting groove 24 and cutting the cutting cylinder 20 along it,
Set the size of the opening at the tip of the
It can be changed to a desired size according to the outer diameter and the number of tubes drawn out of the tube, for example, the refrigerant tubes B. Also, the cutting groove
Since 24 is engraved in a substantially V-shape, the stability when a blade of a cutting tool such as a metal saw is applied is good. Therefore, the cutting operation is facilitated, and the cut end face is less likely to be distorted, and the aesthetic appearance can be maintained.

This pipe cover is used, for example, as follows. First, the mounting portion 2 of the connection tube portion 1 is disposed at a predetermined position on the wall surface. Thereafter, the pipe accommodating duct A is arranged on the wall surface so as to be connected to the mounting portion 2, and the pipe accommodating work is performed. Then, the concealing portion 13 of the connection tube portion 1 is connected to the mounting portion 2 such that the side end surfaces of the bent walls 22, 22 of the cutting tube portion 20 are in contact with the side end surfaces of the opposed side walls 6, 6 of the mounting portion 2. Engage. At this time, the guide piece 12 provided on the mounting portion 2 comes into contact with the inner peripheral surface of the bent wall 22 of the cutting tube portion 20 and guides the concealing portion 13 and the cutting tube portion 20 to the engagement position. Positioning of the unit 2 and the concealing unit 13 can be easily performed. When the concealing portion 13 is pressed while the arc portion 18 of the engaging claw 16 is in contact with the upper end of the projecting wall portion 7 of the mounting portion 2, the engaging claw 16 slides and the opposing side wall of the mounting portion 2 is moved. 6 is slightly bent inward,
Since the engaging claw 16 is introduced into the engaging concave portion 10 of the mounting portion 2, the mounting portion 2 and the concealing portion 13 can be easily engaged. The mounting portion 2 and the concealing portion 13 can be more firmly fixed by screws.

When the cutting cylinder 20 is to be cut and used, it may be cut in advance before disposing it on the wall, or even after disposing it once on the wall, Can be cut in this manner. That is, by providing the opening portion 23 as described above in the cutting tube portion 20, if the concealing portion 13 of the connection tube portion 1 is removed from the mounting portion 2, the entire cutting tube portion 20 is separated from the wall surface accordingly. Since it deviates in the direction, the cutting operation can be performed promptly, and the re-arranging operation performed after the cutting can be easily performed. Further, since the cutting operation itself can be performed with the bent walls 22 and 22 of the cutting tubular portion 20 set up against a flat surface, the cutting can be performed in a stable state, and the opening 23 is provided. Cutting can be easily performed without labor.

According to this pipe cover, since the number of parts is small, it is easy to handle, the work for arranging the cutting cylinder 20 is easy, and the cutting work is performed only once per one cutting groove 24, so that the efficiency is good. Moreover, the desired cutting groove 24 can be reliably and easily cut in a stable state. Also, even if it becomes necessary to perform cutting work after being once installed on the wall,
A series of operations of removing, cutting, and reattaching the cutting cylinder 20 can be performed very easily.

[0022]

The pipe cover according to the first aspect has a small number of parts and is easy to handle, so that the work for arranging the cutting cylinder is easy and the cutting work can be performed efficiently.

The pipe cover according to the second aspect has the same effects as those of the first aspect, and furthermore, when it is necessary to perform a cutting operation after being disposed on the wall surface, it is possible to remove, cut, and remove the cutting cylinder. A series of reattaching operations can be performed very easily.

In addition, the pipe cover according to the third aspect has the effect of the first or second aspect, and can easily perform positioning when the concealing portion is engaged with the mounting portion of the connection tube portion.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of the present invention.

FIG. 2 is a side view of a mounting portion of the connection tube portion.

FIG. 3 is a plan view of a mounting portion of the connection tube portion.

FIG. 4 is a front view of a mounting portion of the connection tube portion.

FIG. 5 is a rear view of a mounting portion of the connection tube portion.

FIG. 6 is a side view of a concealing portion and a cutting tubular portion of the connecting tubular portion.

FIG. 7 is a plan view of a concealing portion and a cutting tubular portion of the connecting tubular portion.

FIG. 8 is a bottom view of the concealing portion of the connection tube portion and the cutting tube portion.

FIG. 9 is a front view of a concealing portion of the connecting tube portion and a cutting tube portion.

FIG. 10 is a rear view of the concealing portion of the connection tube portion and the cutting tube portion.

FIG. 11 is a plan view showing the state of use.

FIG. 12 is an exploded perspective view of an attaching portion, a concealing portion, and a cutting tubular portion of the connecting tubular portion.

[Explanation of symbols]

 1 Connection tube part 2 Mounting part 13 Concealment part 20 Cutting tube part

Claims (3)

[Claims] 1. A connection that is connected to an end of a substantially cylindrical pipe accommodating duct disposed along a wall surface, the connection portion comprising a mounting portion mounted on the wall surface and a concealing portion detachable from the mounting portion. A pipe cover, comprising: a tubular portion; and a cutting tubular portion which is connected to the connecting tubular portion in a tapered shape and cut as appropriate, and is formed integrally with the concealing portion of the connecting tubular portion. 2. The cutting cylinder portion is provided on a side facing a wall surface,
2. The pipe cover according to claim 1, further comprising an opening that opens from one end to the other end in the axial direction. 3. The pipe cover according to claim 1, wherein the connecting tube portion has a mounting portion provided with an integrated concealing portion and a guide portion for guiding the cutting tube portion to a predetermined position.