JPH0215108Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a plastic clip for holding a pipe attached to a stud projecting from a surface.

Conventionally, pipe fixing plastics have been used to attach pipes to automobile bodies, etc. In this type of plastic clip, the main body of the clip is attached to a stud that protrudes from the surface, and the pipe receiving part is attached to the pipe. is configured to hold. In addition, the plastic clip is required to be able to be easily attached to the stud during the assembly process, and to hold the pipe securely without becoming detached from the stud under vibration conditions (which occur, for example, while driving a car). .

Conventional plastic clips are comprised of a clip body having a stud receiving hole for receiving a stud, and a pipe receiving portion integrally formed adjacent to the clip body for receiving a pipe. When the stud protrudes from the stud receiving hole with the pipe receiving portion receiving the pipe, the clip main body portion deforms and engages with the stud, and the pipe receiving portion also deforms to hold the pipe. It is therefore understood that this conventional plastic clip is easy to assemble.

However, in the above-mentioned conventional plastic clip, the stud simply engages with the stud receiving hole, so attachment of the clip to the stud is weak, and furthermore, pipe holding by the pipe receiving portion due to deformation of the clip body is also weak. .

In order to solve the above problem, for example,
In the support clip shown in Japanese Patent No. 56-73287, semicircular hole walls are alternately formed on the inner wall of the stud attachment hole along the axial direction of the hole. When the stud attachment hole of the clip is pushed into the stud, the semicircular hole wall on the inner wall of the stud attachment hole elastically deforms and engages with the thread of the stud. Clips can be attached securely and easily.

In the clip of the above-mentioned publication, the semicircular hole wall is formed at the part connecting the two pipe gripping parts, so the semicircular hole wall does not contribute to the gripping of the pipe by the pipe gripping part. , Therefore, the grip of the pipe by the pipe gripping section is weak.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an improved plastic clip for securing pipes, which can be used, for example, in the manufacture of automobiles, and which can be securely and easily attached to studs and which can securely hold pipes.

The plastic clip for fixing a pipe of the present invention is a plastic clip for holding a pipe by being attached to a stud protruding from the surface, and includes a clip body having a stud receiving hole for receiving the stud, and the clip body. a pipe receiving part that is integrally formed adjacent to the part and receives the pipe, the pipe receiving part being constituted by an arcuate wall surrounding the pipe, and the pipe receiving part on the stud receiving hole side of the arcuate wall. The portion includes a flexible member movable between an open state for receiving a pipe and a closed state for retaining the pipe, and a flexible member located closer to the stud receiving hole than the flexible member so that the stud is a stud engaging portion that moves and engages with the stud when the stud protrudes from the stud receiving hole, and the stud protrudes from the stud receiving hole and engages with the stud engaging portion; When moved, the flexible member is a plastic clip configured to move from an open condition to a closed condition and is restricted from movement from the closed condition; It is characterized by having teeth that mesh with the threads of the.

In the operation of the invention, the pipe is received in the pipe receiving part of the clip, the stud is passed through the stud receiving hole of the clip, the stud projects from the hole and engages the stud engaging part of the clip, and the stud is inserted into the pipe receiving part of the clip. Moving the engagement portion moves the flexible member from the open condition to the closed condition, thereby restricting movement of the flexible member from the closed condition. Therefore, the pipe is reliably held in the closed state in the pipe receiving portion of the clip, and the stud engaging portion of the clip is reliably engaged with the stud.

Furthermore, in the present invention, the stud engaging portion has teeth, which mesh with the threads of the stud. Therefore, the stud engaging portion is restricted from disengaging from the stud, so that the clip is securely attached to the stud.

Therefore, the clip of the present invention can be securely and easily attached to the stud.

Further, since the teeth of the stud engagement portion engage the threads of the stud, movement of the stud engagement portion and the flexible member due to reaction forces from the pipe is limited.

Therefore, the clip of the present invention can securely hold the pipe.

In the clip of the present invention, the stud engaging portion has teeth for engaging the threaded stud. In order to enable the stud-engaging portion to match the pitch of and engage the flanks of the stud thread, the clip body is provided with resilient legs that extend over the surface from which the stud projects. They may also be engaged. Furthermore, the clip may have two pipe receiving parts parallel to each other on either side of the stud receiving hole, and the teeth of the stud engaging part are arranged in a staggered manner to form a threaded thread. May be aligned with stud threads.

In the clip of the present invention, the stud engaging portion may be formed by the rear part of the flexible member itself, or may be a flexible finger provided at the rear part and independent from the flexible member. It may also be formed from a flexible finger separated from said flexible member by an open groove parallel to the axis of the pipe in the pipe receptacle. Such a flexible finger may be provided with a protrusion for complementary engagement with a recess in the rear wall of the flexible member.

The clip of the present invention may be thinned to form a hinge in the region where the stud engaging portion joins the clip body, around which the stud engaging portion swings. The other surface of the stud-engaging portion remote from the hinge is flat and disposed perpendicular to the axis of the stud-receiving hole when the stud-engaging portion is in the closed condition, thereby providing access to the stud. The clip may be adapted to facilitate automatic attachment of the clip. When the clip of the present invention has a flexible finger and a flexible member, both of the flexible finger and the flexible member may be hinged to the clip body. , then preferably these hinges are at different heights from the surface to which the clip is fixed.

Preferably, the pipe receptacle of the clip of the present invention has a strong external arm, which external arm is
Together with the flexible member, the pipe receiving portion sufficiently surrounds the pipe to securely hold the pipe even before attaching the clip to the stud, and the stud receiving hole in the clip body is formed so that the clip body is not attached to the stud. The pipe has a diameter such that it can be initially held at the tip, thus before the pipe and clip assembly is forced into a fastening position where the flexible member grips the pipe in place. and clip assemblies can be attached to multiple studs.

The present invention will be described below with reference to three embodiments of the pipe clip of the present invention shown in the drawings. These pipe clips are selected to illustrate the invention and are not intended to limit the invention.

A first embodiment of the present invention is shown in FIGS. 1-4. The clip in this first embodiment is designed to hold two pipes, including a body 10 and a threaded stud S extending through the body. It has a vertical hole 12. The diameter of the hole 12 is such that at least the lower end of the hole lightly engages the stud so that the clip is temporarily secured onto the top of the stud before the clip is fully attached to the stud. have.

Two rigid arcuate arms 14 extend upwardly on either side of the hole 12 and outwardly from the clip body to form part of two pipe receptacles 16. The axes of the receptacles are parallel to each other and lie in a direction perpendicular to the axis of the hole 12. The wall of each pipe receptacle 16 is also formed by the front side of the flexible member 18, with a hole 1 in a vertical rib 20 on the rear side of the member.
Teeth 22 covering 2 are provided. Each of the members 18 is coupled to the body portion 10 by a relatively thin material such that the members are fastened about a resilient hinge 24. Each of the members 18 is thus movable to assume both an open condition (see FIG. 1) and a closed or fastened condition (see FIG. 4) in which it grips the pipe p with the outer arm (see FIG. 4). It's summery. That is, the transition from one state to the other occurs when the clip is sufficiently pushed into the stud such that the stud is present between the members 18. Teeth 22 are adapted to engage screws on the stud. However, tooth 2
2 are arranged alternately on the two members 18,
It is preferred to align the screws on both sides of the stud. Those teeth on the flexible member have the same pitch as the screws on the stud and are attached to the body 10.
Alignment is ensured by the action of the resilient legs 26 provided above. The body portion 10 engages the surface from which the stud projects. The studs are, for example, welded to the outer surface.

When the clip is in the condition shown in FIG. When the clip is fully pushed into the stud, the member 18 is attached to the hinge 24.
It is designed to swing properly around the . Part 1
The free end of the front surface of 8 extends sufficiently close to the free end of arm 14 to allow the pipe to be held loosely in pipe receptacle 16 before the clip is attached to the stud.

In this way, an assembly consisting of pipes and clips is prepared on a jig, for example for use in the undercarriage of a car, separately from the car assembly line, and then the entire assembly is transferred to the car body. Can be automatically installed onto the top stud. To facilitate such automatic assembly, the upper surface 28 of the member 18 is flat and sloped inwardly as shown, so that the clip is fully pressed into the vertical stud. Sometimes it is preferable that the top surface is horizontal.

As an alternative to the embodiment described above, the clip may be partially pushed into the stud so that the stud extends into (but not beyond) the hole 12 and then the pipe is inserted into the clip. After assembly, the clip may be pushed sufficiently into the stud to secure or fasten the flexible member.

The external arm 14 is typically strong and rigid when the pipe is applied;
The external arms are provided with extension lips 30, which allow the external arms to be deformed and the pipes removed as required using a tool such as a screwdriver.

Figures 5 and 6 show a second embodiment of the clip, which replaces the ribs 20 and teeth 22 of the first embodiment clip with a flexible pipe receptacle. The flexible inner wall is comprised of a pipe receiving member 40 and a stud receiving member 42 consisting of toothed fingers 42, the pipe receiving members and fingers having 16
They are separated by an open groove 44 which is parallel to the axis of the pipe held in the pipe. Part 4
Each of the fingers 42 is adapted to swing about a hinge 46 in which the material of which the clip is made is thinned, and each of the fingers 42 is
It is designed to be able to elastically swing around 8. When measured from the surface to which the clip is secured,
Hinge 46 is located higher than hinge 48.
Finger 42 has teeth 50 which correspond to teeth 18 on the clip of the first embodiment. The finger has a projection 52 which is adapted to be received in a complementary recess 54 in the rear wall of member 40 when the clip is pushed into the stud.

The clip of the second embodiment can be used in the same way as the first embodiment already described, with the pipe being inserted into the pipe receptacle before the clip is finally pushed into the stud S (see Figure 4). will be incorporated. However, the clip of the second embodiment shown in FIG. 5 has greater flexibility because the portion between the stud and the pipe is separated into two mutually independent swinging parts. Due to the fact that it is attached to the stud first, it can also be used to insert the pipe into the clip.
In either case, the interengagement of the protrusion 52 of the finger 42 and the recess of the member 40 provides sufficient rigidity when attached to pipes and studs to allow for removal of the clip from the stud. This prevents the pipe from slipping or coming off the clip. Hinge 4 from support
The different heights of 6 and 48 allow the fingers to be deformed over a wide range to accommodate the threads of the studs, with very little wear during installation.

FIG. 7 shows a third embodiment of the clip, which is partially the same as that of FIG. 5, but configured for use on a single pipe. There is. Instead of providing the other pipe receptacle, a relatively rigid cylindrical wall is provided which is continuous with the hole for receiving the stud and is brought into close contact with the protrusion of the stud.

[Brief explanation of the drawing]

FIG. 1 is a side view showing a first embodiment of the clip according to the present invention before a pipe is assembled therein. FIG. 2 is a plan view of the clip shown in FIG. 1. FIG. 3 is a front view of the clip shown in FIG. 1. FIG. 4 is a side view showing the clip shown in FIG. 1 holding two pipes and secured to a threaded stud. 5 and 6 are side views showing a second embodiment of the clip of the present invention, respectively, before and after two pipes and a stud are attached. FIG. 7 is a side view showing a third embodiment of the clip of the present invention. 10... Main body, 12... Stud receiving hole, 1
6... Pipe receiving part, 18 and 40... Flexible member, 20 and 42... Stud engaging part, S...
... Stud.

Claims (1)

[Claims for Utility Model Registration] A plastic clip for holding a pipe attached to a stud protruding from the surface, the clip body having a stud receiving hole for receiving the stud, and adjacent to the clip body. a pipe receiving part that is integrally formed as a pipe and receives the pipe, the pipe receiving part is composed of an arcuate wall surrounding the pipe, and the part of the arcuate wall on the stud receiving hole side is a flexible member that is movable between an open state for receiving a pipe and a closed state for holding the pipe; and a flexible member located closer to the stud receiving hole than the flexible member so that the stud can be moved from the stud receiving hole. and a stud engaging portion that moves and engages the stud when the stud protrudes from the stud receiving hole, and when the stud projects from the stud receiving hole and engages the stud engaging portion and moves the stud engaging portion. , the flexible member is a plastic clip configured to move from an open condition to a closed condition and to be restricted from movement from the closed condition; A plastic clip characterized by having teeth that engage with the clip.