JP3141788B2 - Piping cover - 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 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-described apparatus, the cutting cylinder has to be extrapolated from the end of the pipe to the position of one of the divided bodies, and there is a problem that the work of arranging the cutting cylinder is troublesome. further,
In the above-described method, when it is necessary to cut the cutting tube after the unit is once disposed, it takes time and effort to remove the cutting tube, and after the cutting, the troublesome arrangement must be performed again. Therefore, there was a problem that it took a lot of time and effort.

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, if it is attempted to cut 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.

[0009] The cutting cylinder 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.

Further, the pipe cover according to the second aspect, wherein
Item 1 is a configuration in which the connecting tube portion has a mounting portion provided with an integrated concealing portion and a guiding portion for guiding the cutting tube portion to a predetermined position.

[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 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. A positioning protrusion 5 is provided on the inner peripheral side of the mounting wall 3 so as to be in contact with the end face of the pipe accommodating duct A to be positioned. 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 connecting wall 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 for engaging 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. Further, the side of the cutting cylinder 20 opposite to the connecting wall 21, 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, it has good stability when the blade of a cutting tool such as a saw is applied. 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 connecting 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 come into contact with the side end surfaces of the opposing 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. Note that 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.

[0023] Then, once when the required cutting operation after being arranged on the wall surface occurs, removal of the cutting cylinder unit, the cutting, re-mounting a series of the operations can be very easily performed.

Further, the pipe cover according to the second aspect, wherein
In addition to the effects described in the item 1 , in addition to the above, it is possible to easily perform the alignment 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

Continuation of the front page (56) References JP-A-62-146096 (JP, U) Design registration 846115 (JP, S) (58) Fields investigated (Int. Cl. ⁷ , DB name) F16L 57/00

Claims (2)

(57) [Claims] 1. A substantially cylindrical arrangement arranged along a wall surface.
A connection tube connected to the end of the pipe housing duct and a connection tube
And a cutting tube portion which is continuously tapered and cut appropriately.
In the provided pipe cover, the connection tube portion is attached to a wall surface.
From the mounting part to be attached and the concealing part detachable from the mounting part
The cutting tube portion is integrated with the concealing portion of the connection tube portion.
At the end facing the wall,
It is characterized by having an opening that opens over the other end
Plumbing cover. 2. The connecting cylinder part is integrated with its mounting part.
Guidance for guiding the concealed part and the cutting cylinder part that have become
The pipe cover according to claim 1, further comprising a portion.