JPH0953753A - Piping fixing structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To fix accurately simply a piping even if the piping has the dispersion of a sectional posture in a piping fixing structure to surround a section of the piping along a mounting plane with a mounting band while fixing both ends of the mounting band to the mounting plane with screws. SOLUTION: A piping 1 is provided with an annular rib 11 continuing along the section of the piping. A mounting plane 2 is provided with a slot 21 into which the rib 11 is inserted. The mounting band 3 is provided on both ends of a piping holding part 31 formed in the U-shape as a whole with engaging pieces 32 and fastening screw pieces 33. The piping holding part 31 is provided within a fixed range from the top part thereof with an elongated holding hole 34 into which the rib 11 is fitted. The engaging piece 32 is engagedly fitted in an engaging hole 22 provided in a a mounting plane 2 while the other fastening screw piece 33 is fixed to the mounting plane 2 with a screw.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe fixing structure, and more particularly to a structure for fixing a pipe having a circular cross section on a plane portion in a positioning state.

[0002]

2. Description of the Related Art As a pipe fixing structure of this type, there is a technique already disclosed in Japanese Utility Model Laid-Open No. 62-179479. In this product, a pair of partially projecting projections are provided on the pipe, and the pair of projections are arranged at symmetrical positions in the cross section of the pipe, and the flat plate (mounting plane) serving as a mounting member corresponds to the above projection. The mounting plate band surrounding the pipe is also provided with the same through hole. In this case, when one protrusion is fitted into the through hole of the mounting band and the other protrusion is fitted into the through hole of the other mounting plane and both ends of the mounting band are screwed to the flat plate, this screwing position The pipe is fixed in the direction of the attachment band determined by

In this prior art, the pipe is fixed in the retaining state by the engagement of the projection and the through hole. Further, the axial direction of the attached pipe matches the axial line of the entire attaching band.

[0004]

However, in the above-mentioned conventional fixing structure, the posture of the pipe cross section with respect to the mounting plane is fixed by the fitting of the through hole and the projection. Therefore, for example, in the case where one end of the pipe is fixed to another portion, such as a gas pipe in a gas appliance, etc., there are variations in the posture of the pipe cross section in the mounting plane, and the through hole and In some cases, the protrusions may not match exactly. In this case, it is necessary to twist the entire pipe to correct the posture of the cross section of the projection forming portion so that the projection and the through hole are aligned with each other, which makes the pipe mounting operation troublesome.

The invention according to claim 1 of the present application has been made in view of the above point, and "a mounting band formed in a generally U-shape as a whole surrounds a cross section of a pipe along a mounting plane and the mounting is performed. In the pipe fixing structure in which both ends of the band are screwed to the mounting plane, it is necessary to fix the pipe accurately and easily even if the posture of the cross section of the pipe at the mounting portion varies. It is an issue.

According to a second aspect of the invention, in addition to the above problems, it is possible to finely adjust the mounting position of the pipe and the mounting posture in the axial direction so that rough positioning and final positioning of the pipe can be performed. Let's take that issue. In addition to the problem of the invention of claim 1, it is an object of the invention of claim 3 to set the attitude of the pipe cross section in a fixed state to a constant attitude.

[0007]

[Means for Solving the Problems] The means for solving the problems of the invention of claim 1 is that "a pipe (1) is provided with an annular rib (11) continuous along a pipe cross section, and a mounting portion of a mounting plane (2). The mounting band is provided with a long hole (21) into which the rib (11) is fitted.
(3) is an engaging piece (32) at both ends of a pipe holding part (31) formed in a U shape as a whole so as to surround the cross section of the pipe (1).
And a screw fastening piece (33), and a long holding hole (34) into which the rib (11) is fitted is provided in a certain range from the top of the pipe holding portion (31), and the engaging piece ( 32) Mounting plane
It is configured such that it is fitted and engaged in the engagement hole (22) provided in (2) and the other screwing piece (33) is screwed to the mounting plane (2). ”

The above solution works as follows. The pipe (1) is held and fixed by a mounting plane (2) and a mounting band (3) screwed thereto. The rib (11) of the pipe (1) is fixed so as to be fitted in the elongated hole (21) and the holding hole (34) of the mounting band (3). Therefore, the axial mounting posture of the pipe (1) with respect to the mounting plane (2) is determined.

At the time of this mounting, even if there is a variation in the cross-sectional posture (rotational posture) of the pipe (1) with respect to the mounting plane (2), the ribs (11) are provided on the entire circumference of the cross-section of the pipe (1). Since it is formed over a wide range, the pipe (1) can be attached to the mounting plane (2) regardless of the posture of the cross section.
Further, since the mounting band (3) and the rib (11) are engaged with each other in such a manner that the rib (11) fits into the elongated holding hole (34), it does not matter what the posture of the cross section of the pipe (1) is. The pipe holding part (31) of the mounting band (3) follows the cross section of the pipe (1).

Therefore, the pipe (1) for the mounting plane (2)
The rib (11) has a long hole (21) even if there are variations in the cross-sectional posture of
It can be fixed in a state of being fitted in the holding hole (34). Since only the long hole (21) for positioning the pipe (1) is provided on the mounting plane (2) side, the structure of the mounting plane (2) itself is simple. The means for solving the problem of the invention of claim 2 is "long hole (21).
Is set to be larger than the width of the rib (11) in the axial direction, the engaging position of the engaging piece (32) with respect to the engaging hole (22) and the screwing piece (33) of the mounting band (3). At least one of the screwing positions can be adjusted in the direction of the mounting plane (2). ”

In this case, when fixing the pipe, the long hole (21)
The ribs (11) and the ribs (11) can be roughly positioned.Finally, the axial position of the pipe (1) can be adjusted by adjusting the fixed position of the engaging piece (32) and the screwing piece (33). , Set the fixed position of the piping (1) with fine adjustment, and set the mounting band (3).
The pipe (1) can be accurately fixed by finally fixing it with screws. Therefore, the slot (21) in the mounting plane (2)
The pipe (1) can be accurately positioned and fixed even if there is a variation in the position of the engaging hole (22) or the position of the rib (11) in the pipe (1).

According to a third aspect of the present invention, there is provided a rib according to the first aspect of the invention, in which "a rib is provided in an axial direction of the pipe (1).
Flats (12) (12) facing the mounting plane (2) on both sides of (11)
It was established. In this case, when the pipe (1) is attached to the mounting plane (2) with the rib (11) fitted in the long hole (21), the flat portion (12) and the mounting plane (2) are Since the mounting posture of the cross section of the pipe (1) is determined by the contact, the mounting posture of the cross section of the pipe (1) does not change in the mounted state.

Further, one end of the pipe (1) is fixed,
Even if the orientation of the cross section of this pipe (1) in the part of the mounting plane (2) is deviated from the normal mounting posture, when it is screwed with the mounting band (3), this screwing pressure causes the pipe (1) to move. The cross section of is the flat part (12) (12) and the mounting plane
(2) The mounting posture is corrected so that () faces (faces). As a result, the mounting posture of the cross section of the pipe (1) with respect to the mounting plane (2) is always set to be constant.

[0014]

According to the invention of claim 1, regardless of the posture of the cross section of the pipe (1) with respect to the mounting plane (2), the pipe is
(1) is mounted on the mounting plane (2) in a positioned state.
Further, since only the long holes (21) and the like are formed on the mounting plane (2), there is little processing for positioning, and the structure of the mounting plane (2) for positioning is simple.

According to the second aspect of the present invention, even if the position of the elongated hole (21) or the position of the rib (11) is insufficient, the piping () can be adjusted by finely adjusting the mounting posture of the mounting band (3). 1) has the advantage that it can be installed accurately. At this time, since rough positioning is performed in advance and accurate positioning can be finally performed, workability in this case for fixing the pipe (1) to the final position and posture is good.

According to the third aspect of the invention, the mounting posture is corrected so that the cross section of the pipe (1) is aligned (faced) with the flat portions (12), (12) and the mounting plane (2). The mounting accuracy is improved when the mounting posture of the cross section of the pipe (1) is set to a predetermined posture in advance.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION In this embodiment, the above-mentioned invention is carried out for fixing a gas pipe used for a gas stove, and the pipe fixing structure has a pipe (from a gas cock (C) to a gas burner (B)). It is used as a pipe fixing structure for fixing 1) to the channel-shaped horizontal rail (41) provided on the frame.

This gas stove is a drop-in stove as shown in FIG. 1, which includes a gas burner (B) and a gas cock (C).
The main body case (4) containing the above is formed into a box body that opens upward, and this is dropped and supported in the opening (51) of the countertop (5). And the main body case
The top plate (6) is capped on the open upper end of (4) and the gas burner
A soup saucer and Gotoku are provided in the part corresponding to (B).

The operating shaft of the gas cock (C) is the top plate.
Projection from the operation panel on the front of (6), and then the operation knob (61)
Is installed. As shown in FIG. 3, a gas introduction pipe (1a) extending from the bottom is built in the main body case (4),
The downstream end of the gas cock faces the lower side of the operation panel, and the gas cock (C) is attached by a bracket (1b) attached to this part.
Is installed.

In the gas burner (B), as shown in FIGS. 1 and 2, the lower part of the burner head (B ₁ ) at one end of the gas burner (B) is attached to a horizontal beam (43) provided between the side walls of the main body case (4). The pipe (1) is supported by the burner support plate (42) provided in series and the primary air hole (B ₂ ) at the other end is supported by the pipe (1) through the nozzle (N) inserted therein. This allows the gas burner
Both ends of (B) are supported and fixed at a predetermined position in the main body case (4).

The nozzle (N) is provided at one end of the pipe (1).
Are connected by screwing. Then, the one end of the pipe (1) is provided between the side walls of the main body case (4) and has a cross-shaped inverted U-shaped cross rail (41).
The installation direction of the cross rail (41) and the axial direction of the gas burner (B) are set at a right angle. The top surface of the horizontal rail (41) serves as the above-mentioned mounting plane (2).

In order to fix one end of the pipe (1) to the cross rail (41), as shown in FIG. 4, an annular rib (11) is formed at a position apart from the tip of the rib (11). A long hole (21) for fitting the rib (11) is formed on the top surface of the horizontal rail (41) along the longitudinal direction thereof. The lower ends of the ribs (11) are completely inserted into the elongated holes (21) so that the pipe portions of the pipe (2) which are continuous on both sides of the ribs (11) in the axial direction contact the mounting plane. The length of the long hole (21) is set to be sufficiently long.

Further, the mounting band (3) for holding the pipe (1) on the horizontal rail (41) is a pipe holding portion having an inverted U-shaped cross section.
(31), and the engaging pieces (32) and screwing pieces (3
3), and an elongated holding hole (34) parallel to the longitudinal direction of the pipe holding portion (31) is formed in a certain range from the top of the pipe holding portion (31). The top of the pipe holding part (31) is bent into a semicircle as a whole, and the forming area of the holding hole (34) is set to be larger than the semicircle of the cross section of the pipe (1). The width in the axial direction of (11) is made to substantially match. The axial width of the long hole (21) is also set in the same manner.

The horizontal rail (41) is provided with an engagement hole (22) and a screw hole (23) with the elongated hole (21) interposed therebetween. The engagement hole (22)
Is a square hole provided at a right angle to the longitudinal direction of the horizontal rail (41), and is provided at a position facing the engaging piece (32). The other screw hole (23) is provided at a position facing the above screw stop piece (33), and the rib (11) is fitted into the long hole (21) to fit the mounting band (3) onto the pipe (1). Then, the engagement piece (32) is aligned with the engagement hole (22), and the through hole of the screw fastening piece (33) is aligned with the screw hole (23). Therefore, when the screwing piece (33) is screwed into the screw hole (23) while the engaging piece (32) is inserted and engaged in the engaging hole (22), it is held by the mounting band (3). The pipe (1) will be fixed at a predetermined position on the top surface of the horizontal rail (41).

In this example, the gas introducing pipe (1a) is fixed to the body case (4) at a predetermined position in advance, and the gas introducing pipe (1a)
Attach the gas cock (C) using the bracket (1b) provided in a), attach the nozzle (N) to the tip of the pipe (1) connected to this gas cock (C), and connect this pipe (1) to the above. If the nozzle (N) is attached to the top of the horizontal rail (41) by following the procedure described above,
It is fixed in a predetermined posture and at a predetermined position.

This nozzle (N) is inserted into the nozzle hole at the center of the primary air port (B ₂ ), and the protrusion (B ₃ ) protruding from the bottom surface of the burner head (B ₁ ) is attached to the main body case (4). When inserted into the through hole (44) of the burner support plate (42) protruding from the horizontal rail (43) installed at the position, the gas burner (B) is supported in a predetermined posture as shown in FIGS. It Then, the axis of the mixing tube of the gas burner (B) and the axis of the nozzle (N) substantially coincide with each other.

As shown in FIG. 6, if the size of the long hole (21) is made larger than the lateral width of the rib (11) and the length of the lower portion of the rib (11) in the chord direction, the piping is formed as described above. Cross rail (1) (41)
When fixing the ribs (11) to the long holes (21) (the state indicated by the chain double-dashed line in the figure) when temporarily fixing the mounting band (3), the position of the pipe (1) and the pipe direction The posture is roughly determined. After this, set the posture and position of the pipe (1) in the axial direction to an accurate state (state of the solid line) and finally screw the mounting band (3), as shown in Fig. 5,
The pipe (1) can be fixed in the correct position.

As shown in FIGS. 7 and 8, one side of a certain range on both sides of the rib (11) in the axial direction is defined as a flat portion (12) (12),
The distance between the inner sides of these flat parts (12) (12) is set smaller than the widthwise dimension of the elongated hole (21), and the distance between the outer edges of the flat parts (12) (12) is set to the cross rail. If the width is set larger than the width of (41), the pipe (1) can be fixed in a state where the flat portions (12), (12) are in close contact with the top surface of the cross rail (41). In this case, the mounting band
The holding hole (34) in (3) will determine the axial position of the pipe (1). The positioning in the axial direction can be performed, and the posture of the cross section of the pipe (1) can be determined to a preset posture. If the fixed structure is used for the pipe (1) to the gas burner (B) as in this example, the gas cock
Depending on the variation of the connection state with (C), etc., the flat section (12) of the cross section of the pipe (1) placed on the top surface of the horizontal rail (41) and the horizontal rail (4
The top surface of 1) may not match. In this case, as shown in FIG. 9, the cross section of the pipe (1) is such that the plane portion (12) is inclined with respect to the top surface of the cross rail (41), that is, the mounting plane (2). In this case, when the mounting band (3) is tightened, this tightening force acts so that the flat surface portion (12) is brought into close contact with the mounting flat surface (2). Therefore, the slight deviation of the posture is eliminated by tightening the mounting band (3).

Further, as shown in FIG. 10, the width of the elongated hole (21) and the width of the holding hole (34) are made larger than the width of the rib (11) in the axial direction, and the holding hole (34) is Make sure that the ribs (11) of the pipe (1) are clamped by the edge on one side and the edge on the other side of the long hole (21) so that the mounting band (3) is screwed in position and engaged. Once the engagement position of the joint piece (32) has been determined, place the pipe (1) on the mounting plane (2) and attach the mounting band (3).
The mounting band (3) can be accurately positioned in the axial direction simply by screwing. That is, even if there is a margin in the width direction of each elongated hole (21) and the holding hole (34) with respect to the rib (11), the positioning accuracy is sufficient.

It should be noted that this means that the cross-sectional shape of the mounting portion of the pipe (1) is not a flat portion as in the above example,
This also applies to the case of forming an arcuate curved surface that holds a part of the cross section of (1) and forming the elongated hole (21) in this arcuate cross section.

[Brief description of drawings]

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

[Figure 2] Plan view

FIG. 3 is an exploded perspective view.

FIG. 4 is an exploded perspective view of essential parts.

[Fig. 5] Sectional view of the installation part of the pipe (1)

FIG. 6 is an explanatory view of a pipe fixing method for temporary fixing.

FIG. 7 is an explanatory view of a fixed state of the pipe (1) when the (12) is formed.

FIG. 8 is a vertical sectional view thereof.

FIG. 9 is a sectional view showing the process up to the fastening and fixing.

FIG. 10 is an explanatory diagram of another example.

[Explanation of symbols]

 (1) ・ ・ ・ Piping (11) ・ ・ ・ Rib (2) ・ ・ Mounting plane (21) ・ ・ ・ Slot (3) ・ ・ ・ Mounting band (31) ・ ・ ・ Piping holder (32) ・..Engagement pieces (33) ... Screw-fastening pieces (34) ... Holding holes (12) ... Flat part (In the drawings, the same reference numerals indicate the same or corresponding parts.)

Claims (3)

[Claims] 1. A pipe fixing structure in which a mounting band formed in a generally U-shape as a whole surrounds a cross section of a pipe along a mounting plane and both ends of the mounting band are screwed to the mounting plane. , The pipe (1) is provided with an annular rib (11) which is continuous along the pipe cross section, and the mounting portion of the mounting plane (2) has a long hole (2) into which the rib (11) is fitted.
1) is provided, and the mounting band (3) is provided with engaging pieces (32) and screws at both ends of the pipe holding part (31) formed in a U shape as a whole so as to surround the cross section of the pipe (1). A stopper piece (33) is provided, and an elongated holding hole (34) into which the rib (11) is fitted is provided in a certain range from the top of the pipe holding portion (31).
The engaging hole (2) provided on the mounting plane (2) with the engaging piece (32).
A pipe fixing structure in which the other screw-fastening piece (33) is screwed to the mounting plane (2) while being fitted and engaged with the 2). 2. The width of the long hole (21) is set larger than the width of the rib (11) in the axial direction, and the engagement hole (2) of the engagement piece (32) is set.
2) Engagement position with respect to the mounting band (3) screwing piece (3
The pipe fixing structure according to claim 1, wherein the screwing position of 3) can be adjusted by swinging on the mounting plane (2). 3. The pipe fixing according to claim 1, wherein flat portions (12) (12) facing the mounting flat surface (2) are continuously provided on both sides of the rib (11) in the axial direction of the pipe (1). Construction.