JPH04337104A - Fixing clip - Google Patents

Abstract

PURPOSE:To realize easy and certain fixation by providing first and second holders which compose a ring body by mutually engaging a first tooth provided in the first holder and a second tooth in the second holder respectively in a clip for fixing a fixture such as a wiring harness to an automobile body and the like. CONSTITUTION:When a fixture 18 is fixed to an automobile body 20, the fixture 18 is inserted between first and second holders 1, 2 at first, both holders 1, 2 are mutually turned inward to engage first and second engaging teeth 3, 16, thereby a ring body 19 comprises both holders 1, 2, and the fixture 18 is holding-fixed by the ring body 19. At this time, if the fixture 18 is small in diameter, a fixture presser 17 comes in contact with the fixture 18 while bending outward, to fix the fixture 18 firmly by pressing the fixture 18 between the first holder 1 and the presser 17 by return resilient force of the presser 17. In this state, a fixing body 10 is inserted into a fitting hole formed in the body 20 and locking claws 12, 13 are engaged with the body 20 to finish the fixation of the fixture 18.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clip for fixing harnesses of automobile wiring, various infusion pipes, etc. to the body of an automobile.

0002

[Prior Art] Conventionally, two circular arc-shaped clamping pieces have been used as a fixing device for fixing a harness that bundles the wiring of an automobile's electrical system and a pipe for injecting working fluid for brakes, clutches, etc. to the automobile body. A fixing clip made of plastic has been proposed, which is connected to the main body and has serrated engagement pieces protruding from each tip to engage with each other.
-42488).

That is, as shown in FIG. 4, this fixed clip rotatably connects two arc-shaped clamping pieces a and a' to each other at one end in the longitudinal direction, and each clamping piece a
, a' is divided into two along the length direction at the middle part in the width direction, and one of the divided pieces c and b' is bulged outward to form two divided pieces b, c, b', c ' are formed alternately, and in one clamping piece a, engaging teeth d having a serrated cross section are formed on the upper surface of the non-bulging divided piece b to serve as an engaging piece, and the bulging piece The other clamping piece a' has engagement teeth d' formed on the lower surface (inner surface) of the bulging piece b' to form an engaging piece b', and the non-bulging piece c ' is used as a side slip prevention piece. Note that e in the figure is a fitting protrusion that fits into a fitting hole provided in the body of an automobile, etc., and fixes this fixing clip to the body, etc.

As shown in FIG. 5, this fixing clip rotates both clamping pieces a and a' inwardly, thereby locking the respective locking pieces b and b' and preventing lateral slippage at the inner rotation limit. While the pieces c and c' overlap each other, the engagement teeth d and d' of both the engagement pieces b and b' engage with each other to sandwich the pipe or harness f between the clamping pieces a and a', The pipe or harness f is fixed to the car body g by fitting the fitting protrusion e into a fitting hole formed in the car body g, etc. In this case, the side slip prevention piece c
, c' are in contact with the side surfaces of the engaging pieces b, b', respectively, and as a result, the engaging pieces b, b' are moved in the lateral direction (the clamping piece a
, a' in the width direction), thereby preventing the engaged state between the two from being released.

[0005]

However, as described above, the fixing clip has side slip prevention pieces c and c' that prevent it from moving in the lateral direction (clamping pieces a and a') with respect to the engaging pieces b and b'.
Although the engaged state can be maintained in response to forces (in the width direction of No measures have been taken to prevent the clip from hitting the engaging piece b' or getting caught when the pipe or harness is clamped or when or after the clip is attached to the car body g. In this case, both engaging pieces b,
There was a risk that the engaged state of b' would be released.

[0006]Also, it is preferable that the edges of the clamping pieces a, a', the engaging pieces b, b', and the side slip prevention pieces c, c' be rounded at the corners to avoid damaging the pipe or harness. In the above fixed clip, the engaging pieces b, b' and the lateral slip prevention pieces c, c' divide the tips of the clamping pieces a, a' into two along the length direction at the middle part in the width direction. Therefore, when this fixed clip is integrally molded using a mold, it is difficult to round the edges of the engaging pieces b, b' and the lateral slip prevention pieces c, c'.

That is, when the above-mentioned fixing clip is integrally molded using a mold, it is common to use the middle part in the width direction of the clamping pieces a and a' as the paring line of the mold. When rounding the edges of the engagement pieces b, b' and side slip prevention pieces c, c', the cross section of the mold at the engagement pieces b, b' and side slip prevention pieces c, c' should be as shown in the figure. 6, it is impossible to cleanly remove the engaging piece b and the lateral slip prevention piece c from the molds h and h' after molding without damaging them.

The present invention was developed in view of the above-mentioned circumstances, and it is possible to securely hold fixed objects such as pipes and harnesses without the engagement of both clamping pieces being released due to external force. To provide a fixing clip that can be easily rounded at the edges of each part during molding.

[0009]

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a fixing clip for fixing fixed objects such as harnesses bundling various wirings and various pipes to objects to be fixed such as the body of an automobile. , an arc-shaped first clamping body having a first engagement tooth having a serrated cross section formed on the outer surface of one end in the length direction; a cylindrical engagement house formed in a cylindrical engagement house; an arcuate second clamping body whose one longitudinal end is rotatably connected to the other longitudinal end of the first clamping body; The other end of the clamping body projects along the lengthwise direction, and when the second clamping body is rotated inward, the outer surface of one end of the first clamping body is provided within the engagement house. Overlapping locking pieces, second engaging teeth that engage with the first engaging teeth formed on the lower surface of the locking piece, and provided on the outer surface of the first or second clamping body, and a fixing portion fixed to the first holding member and the second holding member by engaging the first engaging tooth and the second engaging tooth.
The fixing object is clamped and fixed within a ring body formed with the clamping body, and the fixed part is fixed to the fixed object, thereby fixing the fixed object to the fixed object. Provide a fixing clip.

0010

[Operation] In the fixed clip of the present invention, a fixed object such as a harness or a pipe is inserted between the first and second clamping bodies, both clamping bodies are rotated inward, and the first engagement tooth and the second engagement A ring body is formed with the first and second clamping bodies by engaging with the matching teeth, and the fixed object is clamped and fixed within this ring body, and in this state, the fixed part is attached to a fixed object such as the body of an automobile. The fixed object is fixed to the object to be fixed by fixing it to the fixed object.

In this case, the second engaging tooth is configured to engage with the first engaging tooth within the engaging house formed to cover the first engaging tooth, so that the engaging piece Even if an external force is applied in any direction, the engaged state of both engaging teeth will not be released, and the fixed object can be reliably clamped and fixed.

Furthermore, the fixing clip of the present invention is capable of forming an engagement house along the entire width of the first clamping body to prevent disengagement of the first and second engagement teeth, and an engagement house that prevents disengagement of the first and second engagement teeth. Since the second clamping body can be provided protruding along the length direction at the middle part in the width direction of the second holding body, it is easy to round the edges of each part when integrally molding the fixing clip using a mold. Can be done.

That is, since the fixing clip of the present invention does not have a part divided at the widthwise middle part at any point, when integrally molding the widthwise middle part as the parting line of the mold, the R The entire edge to be attached becomes the deepest part of the mold cavity, so that it is not difficult to pull out the molded object from the mold, and it is possible to easily perform rounded molding. .

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A fixing clip according to an embodiment of the present invention will be described below with reference to FIGS. 1 to 3. This fixing clip is made of plastic integrally molded using a mold, and includes a first clamping body 1 and a second clamping body 2 each having a shape of a long plate curved into an arc. body 1,
2 are rotatably connected to each other at one end in the longitudinal direction.

First engaging teeth 3 having a serrated cross section are formed on the outer surface of the tip of the first clamping body 1, and a substantially rectangular cylindrical engagement with the tip of the clamping body as one wall. A house 4 is formed to cover the first engaging teeth 3. Here, one side wall 5a forming the engagement house 4 is cut out and opened from the distal end to the middle part, and the other side wall 5b is cut out and opened from the base end to the middle part. A gap 6 is formed between the tip side edge of the side wall 5a and the base side edge of the side wall 5b, and is open to both sides along the width direction. Further, the distal end surface and the proximal end surface of the engagement house 4 are open, and the outer wall (upper wall)
7 is curved along the length direction of the first holding body 1.

At the intermediate portion in the length direction of the first holding body 1,
A leg protrusion 8 is provided to protrude, and a cylindrical fixed body 10 having a tapered outer peripheral edge is protruded from the tip of the leg protrusion 8 via a locking plate 9. Note that pressing protrusions 9a, 9a are provided protrudingly provided along the width direction at both lengthwise end edges of the lower surface of the locking plate 9.

Window portions 11, 11 are formed on the peripheral wall of the fixed body 10 at positions facing each other, and long locking claws 12 are formed diagonally upward outward from the lower ends of the window portions 11, 11, respectively. , 12 and short locking claws 13, 13 are protruded, and each of the locking claws 12, 12, 13, 13
The distal end portion of the fixing member 10 projects outward from the outer circumferential surface of the fixed body 10.

At the tip of the second clamping body 2, an engaging piece 14 curved in an arc shape is provided to protrude along the length of the second clamping body 2 via a leg protrusion 15. This engagement piece 14
A second engaging tooth 16 that engages with the first engaging tooth 3 is formed on the inner surface (lower surface) on the distal end side. Then, as shown in FIG. 3, by rotating both the first and second clamping bodies 1 and 2 inwardly, the engagement piece 14 is inserted into the engagement house 4, and the first clamping body 1 and 2 are rotated inwardly. The first engaging tooth 3 and the second engaging tooth 16 are arranged to overlap with the outer surface of the tip of the body 1 and engage with each other. Note that the first engaging tooth 3 and the second engaging tooth 16 are capable of resisting the force (indicated by arrow F in FIG. It is a ratchet tooth that generates a locking force only in response to force in the direction), and when the engagement piece 14 enters the engagement house 4, it can be easily entered with a clicking sound. It has become.

Further, on the inner surface of the proximal end of the second clamping piece 2, a long plate-shaped fixed object pressing piece 17 is provided to protrude along the radial direction (toward the center of the second clamping piece 2). .

When fixing a fixed object such as a harness or a pipe to an object to be fixed such as a car body using this fixing clip, as shown in FIG.
and inserted between both the second clamping bodies 1 and 2, and both clamping bodies 1 and 2
The first engaging tooth 3 and the second engaging tooth 1 are rotated inwardly to each other.
6, the holding bodies 1 and 2 form a ring body 19, and the fixed object 1 is inserted into the ring body 19.
8 is clamped and fixed. At this time, even if the diameter of the fixed body 18 is smaller than the inner diameter of the ring body 19, the fixed object pressing body 17 contacts the fixed object 18 and is bent outward (17' in FIG. 3).
), the fixed object 18 is
is pressed in the radial direction between the first clamping body 1 and the fixed body 17', and the fixed body 18 is firmly fixed within the ring body 19.

Next, in this state, the fixed body 10 is inserted into the fitting hole formed in the fixed body 20, and the locking claws 12, 12,
13 and 13 are engaged with the object to be fixed 20, the fixing clip is fixed to the object to be fixed while holding the object 18. At this time, by inserting and pushing the fixed body 10 into the fitting hole of the fixed body 20, the locking claws 12, 12, 1
3 and 13 are pressed by the inner peripheral surface of the fitting hole, and the locking claws 12 and 1
The protruding tips 2, 13, 13 are bent so as to be buried in the window 11, and when the fixed body 10 advances to the advancing limit, these locking claws 12, 12, 13, 13 elastically return to the fixed body. 20. In addition, in this case, the pressing protrusions 9a, 9a of the locking plate 9 come into contact with the fixed object 20, and the locking plate 9 is fixed in a bent state, as indicated by reference numeral 9' in FIG. Due to the return spring force of this locking plate 9,
It is firmly fixed to the fixed object 20 without rattling.

[0022] The fixing clip of this embodiment is provided with long locking claws 12, 12 and short locking claws 13, 13, so that it can accommodate fixed objects 20 of various thicknesses. be able to. In addition, here, after the fixed object 18 was clamped and fixed between the first clamping body 1 and the second clamping body 2, the fixing clip was fixed to the fixed object 20, but the fixing clip was fixed to the fixed object 20. Later, the first clamping body 1 and the second clamping body 2
There is no problem even if the fixed object 18 is clamped and fixed between the two.

According to this fixed clip, the second engaging teeth 16 are configured to engage with the first engaging teeth 3 within the engaging house 4 formed to cover the first engaging teeth 3. Therefore, even if an external force is applied to the engaging piece 14 in any direction, the engaged state of both the engaging teeth 3 and 16 will not be released, and the fixed object can be securely clamped and fixed. Moreover, even if the diameter of the fixed object 18 is smaller than the inner diameter of the ring body 19 formed by both the clamping bodies 1 and 2, the fixed object pressing body 17 can firmly clamp and fix the fixed object without wobbling. It is possible.

Furthermore, the fixing clip of this embodiment is integrally molded using a mold, and each edge of the fixing clip can be easily rounded during molding. That is, in the above fixed clip, the engagement house 4 that prevents the engagement state between the first engagement teeth 3 and the second engagement teeth 16 from being released due to external force extends over the entire width of the first clamping body 1. In addition, the engaging piece 14 also protrudes from the middle part in the width direction of the second holding body 2, and has no part divided at the middle part in the width direction at any part.
When integrally molding the middle part in the width direction as the parting line of the mold, the entire edge to be rounded becomes the deepest part of the mold cavity, making it difficult to pull out the molded object from the mold. There is no problem, R molding can be easily performed, and the mold structure can be made relatively simple.

Furthermore, in the fixing clip of this embodiment, the side walls 5a and 5b constituting the engagement house 4 are
The insertion part of the mold for molding the first engaging tooth 3 enters from the open part of the mold, but in this case, there is a gap in the width direction between the distal end edge of the side wall 5a and the proximal edge of the side wall 5b. Since it is configured to form a gap part 6 that is open to both sides along the mold, a gap is formed between the protrusion part of one mold and the protrusion part of the other mold. By repeating molding, it is possible to reliably prevent the insertion parts of both molds from rubbing against each other and being damaged, and the durability of the mold can be improved.

It should be noted that the fixing clip of the present invention is not limited to the above-mentioned embodiments, and for example, the fixing clip of the present invention is
If the diameter of the fixed object is the same as or slightly larger than the diameter of the ring body, there is no particular need to provide it, and it can be omitted as appropriate. Further, the configuration and shape of the engagement house 4 and the fixed body 10 can be changed as appropriate, and other configurations can also be changed in various ways without departing from the gist of the present invention.

[0027]

[Effects of the Invention] As explained above, according to the fixing clip of the present invention, the engaged state of both clamping bodies will not be released due to external force, and fixed objects such as pipes and harnesses can be securely fixed. In addition, the edges of each part can be easily rounded during molding.

[Brief explanation of drawings]

FIG. 1 is a plan view showing a fixing clip according to an embodiment of the present invention.

2 is a plan view of the fixing clip viewed from the direction of arrow II in FIG. 1. FIG.

FIG. 3 is a plan view showing a state in which a fixed object is fixed to a fixed object using the fixing clip.

FIG. 4 is a perspective view of a conventional fixing clip.

FIG. 5 is a partially sectional plan view showing a state in which a fixed object is fixed to a fixed object using the fixing clip.

FIG. 6 is a cross-sectional view showing the engagement piece b and the lateral slip prevention piece c when the fixing clip is molded using a mold.

[Explanation of symbols]

1 First clamping body 2 Second holding body 3 First engaging tooth 4 Engagement house 10 Fixed body (fixed part) 14 Engagement piece 16 Second engaging tooth 18 Fixed objects 19 Ring body 20 Fixed object

Claims (1)

[Claims] Claim 1: A fixing clip for fixing a fixed object (18) such as a harness with various wiring bundles or various pipes to a fixed object (20) such as the body of an automobile, the clip having a cross section on the outer surface of one end in the length direction. An arc-shaped first clamping body (1) on which sawtooth-shaped first engagement teeth (3) are formed, and a first clamping body having an outer surface at one end in the length direction so as to cover the engagement teeth (3). a cylindrical engagement house (4) formed in a cylindrical engagement house (4); and an arc-shaped second clamping member whose one longitudinal end is rotatably connected to the other longitudinal end of the first clamping body (1). The body (2) and the second clamping body (2) are provided at the other end in the longitudinal direction so as to protrude along the length direction, and when the second clamping body (2) is rotated inward, the above-mentioned A locking piece (14) that overlaps the outer surface of one end of the first clamping body (1) in the engaging house (4), and the first engaging tooth (3) formed on the lower surface of the locking piece (14). ) a second engagement tooth (16) that engages with the second engagement tooth (16);
A fixing part (10) provided on the outer surface of the first or second holding body and fixed to the fixed body (20), the first engagement tooth (3) and the second engagement part By engaging with the matching teeth (16), the fixed object (18) is clamped and fixed within the ring body (19) formed by the first clamping body (1) and the second clamping body (2), and , by fixing the fixing part (10) to the fixed object (20), the fixed object (
18) is configured to be fixed to an object to be fixed (20).