JPH10122433A - Piping mounting bracket - Google Patents

Abstract

PROBLEM TO BE SOLVED: To mount a piping by every bracket or a stud bolt on the installed part such as a vehicular floor plate and the like, increase strength against a separation from the stud bolt in the case where mounting is carried out by the stud bolt, and facilitate injection molding. SOLUTION: A piping mounting bracket 26 provided with a lock part 28 to a stud bolt and a bracket fixing part 29 having a lock plate 40 and a lock pawl 41, is mounted on a mounted part by also the stud bolt, or also the bracket. The lock part 28 to the stud bolt is provided with stud bolt lock plates 33 projected slantly inward from a side wall 32 to be opposed, a pantograph- shaped cross sectional lock projection part formed by connecting plates 34 for integratedly connecting both tip ends of the lock plates 33 to each other, and rib shaped lock pawls 35 which are parallel with each other on the surface of the connecting plates 34. Those lock pawls 35 are engaged with troughs of a screw of the stud bolt.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe for mounting hydraulic pipes, fuel pipes, and other various pipes disposed on a vehicle to a mounting portion such as a floor of a vehicle via stud bolts or mounting brackets. For mounting fixtures.

[0002]

2. Description of the Related Art Conventionally, single or double wound metal pipes are used for various pipes of automobiles, for example, fuel pipes, hydraulic pipes, power steering pipes, lubricating oil pipes, cooling water pipes, and the like. In order to avoid interference between the metal tubes and interference with the vehicle body or parts provided on the vehicle body, and to arrange the metal tubes neatly, these metal tubes are connected with pipes as shown in FIGS. The tool 1 is supported at a plurality of locations along the pipe.

[0003] The pipe fitting 1 has a main body integrally formed of a synthetic resin, and the main body has a pair of pipe holding parts 2. Each pipe holding part 2 has a semicircular cross-section substantially corresponding to the diameter of the pipe 3 and is formed with a fitting part which opens upward in the figure, and a predetermined pipe 3 is provided in each of these fitting parts. It is to be fitted. In the conventional example shown in FIG. 11, the main body of the pipe fitting 1 is fixed to the part 4 to be mounted 4 by a bolt 6 via a bracket 5. The pipe fitting 1 is provided with a projection 7 which resiliently engages with an opening provided in the bracket 5. Further, in the conventional example shown in FIG. 12, the main body of the pipe fitting 1 is fixed to the mounted part 4 by pushing the main body of the pipe fitting 1 toward the stud bolt 8 protruding from the mounted part 4. The central part of the pipe fitting 1 is open at the top, bottom and front, and has side walls 9 on both sides. Then, from the inner side surfaces of these side walls 9, for example, two elastic resilient locking plates 10 extending diagonally downward and inward are integrally protruded from the side walls 9, respectively. Has locking claws projecting obliquely downward. The locking claw is engaged with the stud bolt 8 to hold the pipe fitting 1. A pipe fitting of the type shown in FIG.
-83357.

[0004]

In the above-described conventional example, FIGS. 11 and 12 show the manner in which the bracket or the stud bolt is used to fix the pipe fitting to the portion to be mounted. There is an inconvenience that different forms must be prepared.

On the other hand, in a pipe fitting of the type shown in FIG. 12, the locking claws are projected from a plurality of independent locking plates 10, so that the pipe fitting 1 is stud bolt 8
When a large force acts in the direction in which the locking plates 10 are disengaged from each other, a bending or shearing force is generated in the locking plates 10, and each locking plate tends to break.
Further, since the locking plates 10 are provided one by one independently of the side wall 9, there is a problem that each one is relatively weak, and it is difficult to perform injection molding.

The present invention has been made in order to solve such a problem, and different forms are prepared depending on whether a bracket or a stud bolt is used for fixing to a mounting portion. The aim is to provide a plumbing fixture without the inconvenience of having to.

Another object of the present invention is to provide a pipe fitting which has a high binding strength to a stud bolt and is easy to perform injection molding.

[0008]

In order to achieve the first object of the prior art, a pipe fitting according to the present invention comprises a pipe holding part and a stud bolt engaging part integral with the pipe holding part. The stud bolt locking portion has a pair of opposing side walls, and includes a stud bolt locking plate projecting obliquely inward from each of these side walls. A locking claw, which is locked to a bracket for mounting the pipe fitting to the mounting portion, protrudes from a portion of the stud bolt locking portion opposite to the stud bolt insertion side. .

Further, in order to achieve the second object of the above-mentioned prior art, the pipe fitting of the present invention has a pipe holding part and a stud bolt engaging part which is integral with the pipe holding part. The stud bolt locking portion has a pair of opposing side walls, and includes a plurality of stud bolt locking plates projecting obliquely inward from each of the side walls. The tips of a plurality of stud bolt locking plates belonging to the same side wall are integrally connected by a connecting plate parallel to the side wall, and a locking claw that meshes with the stud bolt is formed on the inner surface of the connecting plate. It is characterized by having.

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an embodiment of a pipe fitting according to the present invention. FIG.

In FIG. 1 to FIG.
6 includes a pair of left and right pipe holding portions 27, a central stud bolt locking portion 28, and a bracket fixing portion 29 below the stud bolt locking portion 28, which are integrally formed of synthetic resin.

The pipe holding portions 27 have a generally elongated rectangular parallelepiped shape, and each of the pipe holding portions 27 has a semicircular cross section substantially corresponding to the diameter of the metal tube 5 as shown in FIG. Further, a fitting portion 30 that opens upward in the figure is formed. And, in each of these fitting portions 30,
A predetermined metal tube 5 is fitted therein. On one side of the entrance of each fitting portion 30, a pressing piece 31 that elastically deforms when fitting the metal tube 5 into the fitting portion 30 and that prevents the metal tube 5 from coming out after fitting is provided.

The stud bolt locking portion 28 is a box-shaped portion located at the center as shown in FIG. 1, and has an upper surface, a lower surface, a front surface, and a rear surface opened in the drawing, and side walls 32 on both side surfaces. It is provided integrally. From the inner side surfaces of these side walls 32, a stud bolt locking plate 33 having a pantograph shape as viewed from the front is integrally provided so as to project diagonally downward in the figure. The locking plates 33 belonging to the same side wall 32 are parallel. The ends of the parallel locking plates 33 are connected to the connecting plate 3 as shown in FIG.
4 are integrally connected. Each connecting plate 34 is parallel to the side wall 32. As shown in FIG. 6, a locking claw portion 35 that meshes with the stud bolt is formed on the inner surface of each connecting plate 34. The claw portion 35 can be constituted by parallel ribs extending in the lateral direction as shown in FIG. In addition, a notch 36 can be provided at the central base of the locking plate 33.

As shown in FIG. 1, two spring pieces 37 projecting upward from the front are projected from the corners of the upper surface of the stud bolt locking portion 28. These spring pieces 37 come into contact with a portion to be mounted, such as a floor plate of an automobile, as described later.

The bracket fixing portion 29 is integrally provided with a pair of parallel elastic plate-shaped locking pieces 40 projecting downward in FIG. At the tip of each locking piece 40, a locking claw 41 is formed which is bent outward in a reverse direction. In this embodiment, the locking claw 41 is formed over a part of the length of the locking piece 40 as shown in FIG. The configuration of the locking piece 40 and the locking claw 41 is shown in FIG. 7 which is a bottom view of the pipe fitting 26. In FIG. 7, reference numeral 42 denotes an elongated hole formed in the bottom surface of the stud bolt engaging portion 28, and the central portion thereof has an opposing projection 4
3 are formed. The function of the long hole 42 will be described later.

Since the pipe fitting 26 is configured as described above, when the metal pipes 5 are respectively fitted into the fitting sections 30 of the pipe holding sections 27, the metal pipes 5 elastically deform the pressing pieces 31 as shown in FIG. As shown in the figure, the metal tube 5 is held in the fitting portion 30 because the pressing piece 31 presses the outer peripheral surface of the metal tube 5 after the fitting. After holding the metal pipe 5 in the pipe holding section 27 in this manner, to attach the pipe fitting 26 to the attached section 15 such as an automobile floor plate, a stud bolt locking section 28 or a bracket below the stud bolt locking section 28. One of the fixing portions 29 is used.

FIG. 8 shows an example in which the bracket fixing portion 29 is used. In this case, the locking piece 40 and the locking claw 4
1 is used. The bracket has a configuration as shown in FIG. That is, the bracket 18 is
Has a substantially square opening 20 at the center of the support plate 17, a rising portion 22 is integrally formed at one end of the support plate 17, and an L-shaped rising portion 19 is integrally formed at the other end. The L-shaped rising portion 19 is provided with a mounting hole 21. The recess formed between the two rising portions 19 and 22 is formed to have a size capable of holding the pipe fitting 26.

The pipe fitting 26 holding the metal tube 5 is held by holding the recess of the bracket 18 against the pipe fitting 26.
6. The locking piece 40 and the locking claw 41 of the bracket 18
When it is inserted into the opening 20 so as to be pushed from the concave side, the elastic locking piece 40 and the locking claw 41 are deformed so as to approach each other. And the locking pawls 4 as shown in FIG.
1 is in contact with the outer surface of the edge of the opening 20. Therefore, the pipe fitting 26 is fixed so as not to fall into the recess of the bracket 18. Next, the mounting hole 21 of the bracket 18 is
Then, the pipe fitting 26 is fixed to the mounting portion 15 by screwing the bolt 23 into the mounting portion 15 such as a floor plate of an automobile as shown in FIG. In addition,
In many cases, the brackets are used to fix the pipe fitting 26 mainly at positions near both ends of the pipe. In the mounted state, the spring piece 37 of the pipe fitting 26 elastically contacts the surface of the mounted portion 15.

On the other hand, the pipe fitting 26 according to the present invention
Attachment part 1 with stud bolts instead of brackets
5 can also be fixed. An example thereof will be described with reference to FIG. 10. Reference numeral 16 denotes a stud bolt whose base is fixed to a mounting portion 15 such as an automobile floor plate by spot welding or the like and protrudes downward. 26 is pushed upward so that the stud bolt engaging portion 28 of the stud bolt 26 fits into the stud bolt 1.
The claw portion 35 formed on the connecting plate 35 of the locking plate 33 bites into the valley of the screw 17 of the sixth while elastically deforming, and the pipe fitting 26 is immediately fixed to the mounted portion 15. At this time, the tip of the stud bolt 16 hits the projection 43 shown in FIG. 7 and bends it downward.

As described above, when the pipe fitting is fixed to the stud bolt 16 of the portion to be mounted, such as the floor plate of an automobile, the adjacent parallel stud bolt locking plate 33 is used.
Since their ends are integrally connected by a connecting plate 34, the plurality of locking plates 33 cooperate with each other via a common connecting plate 34 to separate from the meshing state with the stud bolt 16. Withstand. Therefore, the resistance to detachment from the stud bolt is greater than in the conventional case in which the locking plate 6 alone meshes with the stud bolt. Further, the connecting plate 3 for connecting the tips of the locking plate 33 to each other.
4 are also present between the adjacent engaging plates 33, so that more claws 35 can be formed on the surface of the connecting plate 34 than in the conventional case, so that the engagement with the stud bolt 16 can be increased in more places. And a stronger engagement state can be obtained. In addition, the locking plate 33 and the connecting plate 34 that are integrally formed in a pantograph shape can be easily injection-molded as compared with the case where the locking plates are provided separately.

[0021]

As described above, according to the present invention,
The same plumbing fixture can be used for mounting using a bracket and stud bolt, and thus has the advantage that it is not necessary to prepare two types of plumbing fixtures as in the prior art. Further, in the present invention, in the case of mounting using stud bolts, the mounting strength of the pipe fitting to the stud bolts can be further increased as compared with the conventional case, and injection molding becomes easier.

[Brief description of the drawings]

FIG. 1 is a front view showing one embodiment of a pipe fitting of the present invention.

FIG. 2 is a plan view of FIG. 1;

FIG. 3 is a side view of FIG. 1;

FIG. 4 is a perspective view of the pipe fitting of FIG. 1;

FIG. 5 is an enlarged view of a stud bolt locking plate and its locking claw.

FIG. 6 is a left side view of FIG. 5;

FIG. 7 is a bottom view of FIG. 1;

FIG. 8 is a diagram showing a state in which the pipe fitting of FIG. 1 is attached to an attached portion by a bracket.

FIG. 9 is a perspective view of a bracket.

FIG. 10 is a diagram showing a state in which the pipe fitting of FIG. 1 is attached to a portion to be attached with stud bolts.

FIG. 11 is an explanatory view of an example of a conventional pipe fitting.

FIG. 12 is an explanatory view showing another example of a conventional pipe fitting.

[Explanation of symbols]

 Reference Signs List 5 Metal tube 15 Attached part (vehicle floor plate) 16 Stud bolt 18 Bracket 26 Piping fixture 27 Pipe holding part 28 Stud bolt locking part 29 Bracket fixing part 30 Fitting part 32 Side wall 33 Stud bolt locking plate 34 Connecting plate 35 Stopper 40 Stopper 41 Stopper

Claims (2)

[Claims] 1. A pipe holding part and a stud bolt locking part integral with the pipe holding part. The stud bolt locking part has a pair of opposing side walls. In a pipe fitting having a stud bolt locking plate projecting obliquely inward, a pipe mounting tool is attached to a portion of the stud bolt locking portion opposite to a stud bolt insertion side. A fitting for fitting a pipe, wherein a locking claw to be locked to a bracket for attaching to a pipe is projected. 2. A pipe holding part and a stud bolt locking part which is integral with the pipe holding part. The stud bolt locking part has a pair of opposed side walls, and both side walls thereof. In a pipe fitting having a plurality of stud bolt locking plates projecting obliquely inward from each of the above, the tip ends of the plurality of stud bolt locking plates belonging to the same side wall are parallel to the side wall. A pipe fitting which is integrally connected by a connecting plate to be formed, and a locking claw portion for engaging with a stud bolt is formed on an inner surface of the connecting plate.