JP2015169253A - clip for stud bolt - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a clip for stud bolt in which the stud bolt can be stably engaged even if the stud bolt is displaced in its position and inclined.SOLUTION: This invention relates to a clip for stud bolt composed of a cylindrical member outwardly fitted and engaged with the stud bolt, the cylindrical member has an elliptical shape, an inner diameter of a short axis of the cylindrical member is equal to a diameter of a male thread arranged at the outer circumference of the stud bolt and an inner diameter of a long axis is at the same time more than 1.5 times of a diameter of the stud bolt, the inner surfaces at both long sides of the cylindrical member are provided with a plurality of engaging claws protruded, inserted and engaged with thread groove held by the male threads of the stud bolt, the engaging claws are protruded at the upper position and the lower position of both inner surfaces at the long side of the cylindrical member while being spaced apart in each of the longitudinal directions, these engaging claws have extremity ends protruded in an arcuate shape, its width is made short and they are engaged with 4 to 6 locations at the outer circumference of the thread groove of the stud bolt.

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stud bolt locking clip, and more particularly, to a stud bolt projecting from a vehicle body panel or the like so as to fix an in-vehicle component such as a protector attached to a wire harness arranged in a vehicle to the vehicle body panel or the like. The present invention relates to a stud bolt clip made of a cylindrical member to be stopped.

  This type of stud bolt and the clip that is locked to the stud bolt are usually shaped as shown in FIGS. 10A and 10B, and a bolt in which the stud bolt 100 protruding from the material to be fixed B is provided on the fixing material A. A pair of engagement members that penetrate through the hole 101 and project upward from the fixing member A, and from which a clip made of a nut-shaped tubular member 103 is externally fitted, projecting to face the inner peripheral surface of the tubular member 103 in the diametrical direction. The pawls 104A and 104B are inserted and locked in the thread groove 102 of the stud bolt 100 and fixed. The pair of locking claws 104A and 104B have a shape in which the tip 104p is recessed in an arc shape as shown in FIG. 10B and can be fitted into the arc-shaped screw groove 102 of the stud bolt 100. Each of the locking claws 104A and 104B has an angle range of 30 to 40 degrees, and the pair of opposing locking grooves 104A and 104B come into contact with the outer peripheral surface of the screw groove 102 within a total range of 60 to 80 degrees for locking. Is done.

  The clip made of the cylindrical member 103 is provided integrally with an in-vehicle component such as a protector for a wire harness arranged in a vehicle, and the in-vehicle component such as the protector is fixed to a vehicle body panel via a stud bolt. Is widely used.

In the stud bolt clip having the above-described configuration, when a misalignment occurs in the projecting position and projecting direction of the stud bolt projecting from the fixed material, the clip provided integrally with the in-vehicle component cannot absorb the misalignment and is fixed. There is a problem that cannot be done.
Further, when the stud bolt protrudes in an inclined manner, if the clip of the cylindrical member that can be fitted and locked accurately on the inclined stud bolt is protruded on the in-vehicle component, the in-vehicle component becomes large and the in-vehicle component is molded. There is a problem that the mold becomes large and the cost is high.

  On the other hand, when the clip is provided separately from the in-vehicle component or connected to the in-vehicle component via a hinge-like flexible connecting material, the clip orientation and position are adjusted according to the position and inclination of the stud bolt and removed. There is a problem in that it cannot be fitted and locked to absorb the deviation, the entire end face of the clip cannot be stably brought into contact with the in-vehicle component, and cannot be firmly fixed.

Conventionally, the present applicant has provided a clip shown in FIGS. 11A to 11C in Japanese Utility Model Laid-Open No. 6-69561 as a stud bolt clip of this type. The clip is integrally provided with a cylindrical portion that is locked to a stud bolt on a substrate that is wound around and fixed to a wire harness.
The stud bolt clip 150 is provided with a cylindrical portion 155 protruding from a substrate 151 and fitted to a stud bolt 100 that is welded to the vehicle body panel 200 to stand upright, and a plurality of engagements are formed on the inner peripheral surface of the cylindrical portion 155. Stop claws 160 are provided so as to be inserted and locked in the thread grooves 102 on the outer peripheral surface of the stud bolt 100.
The latching claw 160 includes a pair of latching claws 160A and 160B projecting in the diametrical direction at the same height position in the axial direction. The pair of latching claws are provided in different levels with different height positions in the axial direction, and the pair of latching claws having different height positions are provided in different circumferential positions.

Japanese Utility Model Publication No. 6-69561

  The stud bolt clip of Patent Document 1 shown in FIG. 11 is engaged by four or more locking claws having different steps and different circumferential positions in a state where a stud bolt having the same axial line is inserted into the cylindrical portion 155. Therefore, the locking force can be increased as compared with the case where the pair of two locking claws opposed in the orthogonal direction are locked to the stud bolt.

  However, if the position of the cylindrical portion 155 and the position of the stud bolt are misaligned, or the axial direction of the stud bolt and the cylindrical portion is misaligned, the cylindrical portion is externally fitted to the stud bolt in the same manner as the clip shown in FIG. In this state, there is a problem that the locking claw protruding from the inner surface of the cylindrical portion cannot be accurately locked in the thread groove of the stud bolt.

  The present invention has been made in view of the above problems, and an object thereof is to provide a stud bolt clip that can be stably locked even when the stud bolt is misaligned or inclined.

In order to solve the above-mentioned problems, the present invention is a stud bolt clip comprising a cylindrical member that is externally fitted and locked to a stud bolt,
The cylindrical member has an oval shape, the inner diameter of the short axis of the cylindrical member is equal to the diameter of the male screw provided on the outer periphery of the stud bolt, and the inner diameter of the long axis of the cylindrical member is the male diameter of the stud bolt. It should be 1.5 times the diameter of the screw,
A plurality of locking claws are provided on the inner surfaces of the long sides on both sides of the cylindrical member so as to be inserted and locked into the screw grooves sandwiched between the male screws of the stud bolts.
The locking claws project from the upper and lower positions of the inner surfaces on both long sides of the cylindrical member at regular intervals in the length direction, and the tips of the locking claws protrude in an arc shape. In addition, a clip for a stud bolt is provided in which the width of each locking claw is short enough to be locked at 4 to 6 locations on the outer periphery of the thread groove of the stud bolt.

Three or more locking claws project from the inner surface on the long side of the cylindrical member at the same height and at regular intervals in the length direction, and project in a staggered arrangement between the long sides on both sides. ,
Furthermore, it is preferable to provide three or more locking claws at the same height position with different vertical height positions and with a constant interval in the length direction in a vertical zigzag arrangement.

  The locking claws are arranged in a staggered manner on the inner surfaces facing the long sides on both sides and arranged in a staggered manner on the upper and lower sides of the same inner surface side. Are densely arranged, and a staggered arrangement as described above enables die cutting during resin molding.

Each of the locking claws has a tip projecting in an arc shape, the tip of the locking claw is brought into point contact with the thread groove of the stud bolt, and the width of the locking claw is the diameter (d) of the stud bolt. ) To 30% to 35%, and it is preferable to set the dimensions so that three or more can be locked in one circumference of the thread groove of the stud bolt.
As described above, the width of each locking claw is set such that three or more can be locked in one circumference of the thread groove of the stud bolt. Therefore, when the stud bolt diameter is small, the width of each locking claw is small. When the stud bolt diameter is large, the width of each locking claw is relatively large. A number of locking claws may be locked to the outer periphery of the stud bolt.

The width of the locking claw of the present invention is, for example, about half of the width dimension of the locking claw 104A, 104B in which the tip of the general-purpose product shown in FIG. In the present invention, the portion of the stud bolt that is locked to the male screw is locked by two locking claws that are phased up and down.
Thus, by shortening the width of one locking claw, even if the axis of the stud bolt and the axis of the cylindrical member are shifted, the locking claw having a small width can be locked in the threaded groove of the inclined stud bolt, It is possible to follow the displacement.
On the other hand, the conventional wide locking claw that protrudes horizontally can only be inserted and locked in the horizontal thread groove of the stud bolt, and it corresponds to the case where the stud bolt is inclined and the angle is shifted. I can't.

The stud bolt clip is formed integrally with a fixing material to be fixed to a fixed material on which the stud bolt is erected, or continuously formed through a connecting string portion having flexibility with the fixing material. Is preferred.
The fixing material may be separated from the fixing material, and after the stud bolt is passed through the bolt hole provided in the fixing material, the fixing material is fixed to the fixing material by being externally fitted to the stud bolt from above.

  The clip for a stud bolt of the present invention is preferably provided integrally with an in-vehicle component such as a protector, an electric junction box, a wire harness binding material, etc., and fixed to the stud bolt protruding from the body panel or the panel fixed to the body. Used for.

  As described above, the stud bolt clip according to the present invention is provided with a plurality of locking claws on the inner surface of the long side facing the cylindrical member formed in an oval shape with intervals in the length direction. Even when the position of the stud bolt is shifted or the stud bolt is tilted, it can be locked by a plurality of locking claws in the oval cylindrical member. Therefore, it is not necessary to provide a separate member to absorb the positional deviation and the angular deviation, and it is possible to reduce the component cost and the operation cost. Moreover, since it does not enlarge also when attached to a protector etc., the enlargement of the metal mold | die for molding can be prevented.

It is a perspective view which shows embodiment which attached the clip for stud bolts of this invention to the protector. The clip for stud bolts is shown, (A) is a perspective view, and (B) is a top view. It is explanatory drawing which shows arrangement | positioning of the latching claw protrudingly provided in the inner surface of the cylindrical member of the said stud bolt clip. The said latching claw is shown, (A) is a perspective view, (B) is a front view. It is sectional drawing which shows the state which latched the said latching claw in the thread groove of the outer periphery of a stud bolt. It is explanatory drawing which shows the state which a latching claw latches on the outer peripheral surface of the stud bolt of this invention compared with a prior art example. It is sectional drawing which shows the latching state with the latching claw when a stud bolt has shifted. (A) is a cross-sectional view, (B) is a drawing showing the locking state of the locking claw to the thread groove of the stud bolt, (C) ) Is an enlarged view of the main part. It is the schematic which shows 2nd Embodiment. (A) (B) is sectional drawing which shows a prior art example. (A)-(C) are drawings which show another prior art example.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1st Embodiment is shown in FIG. 1 thru | or FIG.
In the first embodiment, as shown in FIG. 1, a stud bolt clip 2 is integrally formed on a protector 1 made of a resin molded product that is externally mounted on a wire harness W / H arranged in an automobile. The stud bolt clip 2 is externally fitted and locked to a stud bolt 4 which is welded to and protrudes from the vehicle body panel 3 to fix the protector 1 on the vehicle body panel 3.

  The stud bolt clip 2 is provided with a locking claw 11 projecting on the inner surface of a cylindrical member 10 projecting vertically from the front end side of a bracket 1c projecting horizontally from the bottom wall 1b of the protector body 1a having a bowl shape. It has a structure. The bottom surface 10u of the cylindrical member 10 is a horizontal plane that is flush with the bottom wall 1b.

  The cylindrical member 10 has a long cylindrical shape whose upper and lower surfaces are open. As shown in FIG. 2 (B), the inner diameter r1 of the cylindrical member 10 in the short axis direction is equal to the diameter of the male screw 4a (shown in FIG. 5) provided on the outer periphery of the stud bolt 4, and in the long axis direction. The inner diameter r2 is in the range of 1.5 to 5 times the diameter of the stud bolt 4, and is 3 times in this embodiment. Specifically, the diameter d of the male screw 4a of the stud bolt 4 shown in FIGS. 5 and 6 is 8 mm, the inner diameter r1 of the short axis of the cylindrical member 10 is 8 mm, and the inner diameter r2 of the long axis is 24 mm.

As shown in FIGS. 2 and 3, the locking claws 11 inserted and locked into the thread grooves 4 b sandwiched between the male screws 4 a of the stud bolt 4 on the long side inner surfaces 10 a and 10 b on both sides of the cylindrical member 10 A plurality of staggered arrangements of the positions H1 and H2 and the inner surfaces 10a and 10b facing each other are provided.
In the explanatory view shown in FIG. 3, the locking claws 11 (11a to 11d, 11h to 11j) indicated by solid lines protrude from the inner surface 10a, and the locking claws 11 (11e to 11g, 11k to 11o) indicated by dotted lines are the inner surface 10b. It is more prominent.

In detail, the latching claw 11 has four latching claws 11a, 11b, 11c, and 11d at the same height position H1-1 at regular intervals in the length direction X on the inner surface 10a on one side of the long side. In the upper position. Three locking claws 11e, 11f, and 11g are projected from the height position H1-2 of the opposite inner surface 10b at positions facing the locking claws 11a to 11d in a staggered arrangement. The height position H1-2 is a position lower than the height position H1-1 by a half circumferential pitch of the male screw groove 4a.
That is, four locking claws 11a to 11d and three locking claws 11e to 11g are provided in a staggered manner on one inner surface 10a at a substantially opposite height, and the other inner surface 10b.

Further, on the inner surface 10a, the upper locking claws 11a to 11d and the three locking claws 11h, 11i, and 11j are arranged in a staggered arrangement at a height position H2-2 below the height position H1-2. The locking claw is protrudingly provided in a staggered arrangement on the same inner surface 10a.
On the other inner surface 10b, the upper locking claws 11e to 11g and four locking claws 11k, 11m, 11n and 11o are provided in a staggered manner.

As described above, the locking claws 11 are provided in a zigzag arrangement on the same surface side in a staggered manner, and the locking claws 11 are provided in a staggered arrangement on the opposite surface.
The fixed interval L (shown in FIG. 3) in which the locking claws 11 (11a to 11o) are in the length direction X is substantially the same as the width s of the locking claws 11, and the locking claws 11 are arranged in a staggered manner in the vertical direction. As a result, it is possible to perform die cutting during injection molding using a mold, and the use of a slide mold is unnecessary.

Moreover, each latching claw 11 is made into the shape which provided the circular-arc-shaped protrusion claw 11-2 in the upper end of the flat plate part 11-1, as shown in FIG. As shown in FIG. 5, the lower end of the flat plate portion 11-1 of the locking claw 11 is connected to the inner surfaces 10 a and 10 b of the cylindrical member 10, and is inclined and protrudes toward the upper inner side of the cylindrical member 10. The arc-shaped projecting claw 11-2 is projected to be inclined downward.
As shown in FIG. 6, the locking claw 11 has a point contact with the tip 11-3 of the arc-shaped protruding claw 11-2 on the screw groove 4b on the outer periphery of the stud bolt 4, and a locking groove 11 on the male screw 4b. The arc-shaped projecting claw 11-2 is hooked.

Moreover, the locking claw 11 having a width s of the locking claw 11 shorter than the conventional one and protruding from the long side 10a on one side to the half circumference of the screw groove 4b sandwiched between the male threads 4a of the stud bolt 4 is 1-2. The width s is such that one or two locking claws 11 protruding from the long side 10b on the other side can be locked. Thereby, it sets so that a total of six latching claws 11 can be latched in the same height position, a total of three, and two steps up and down.
Specifically, the width s of the locking claw 11 is 30% to 35% of the diameter d with respect to the diameter d of the stud bolt 4.

Next, a method of fixing to the stud bolt 4 erected on the vehicle body panel 3 using the stud bolt clip 2 provided on the protector 1 will be described.
The cylindrical member 10 of the stud bolt clip 2 attached to the protector 1 is externally fitted from above the stud bolt 4, and the bottom wall 1 d of the protector 1, the bracket 1 c and the bottom surface 10 u of the cylindrical member 10 are in contact with the vehicle body panel 3. Thus, the locking claw 11 is locked and fixed in the thread groove 4b of the stud bolt 4.

  When the stud bolt 4 protrudes from the horizontal vehicle body panel 3 in the vertical direction, the axial direction P-1 of the cylindrical member 10 of the stud bolt clip 2 and the axial direction of the stud bolt 4 as shown in FIG. P-2 is parallel, and the stud bolt 4 is vertically fitted into the cylindrical member 10, and the horizontal claw 11 is stably locked to the substantially horizontal screw groove 4b.

  Even if the protruding position of the stud bolt 4 is displaced in the horizontal direction, the cylindrical member 10 is formed in an oval shape, and a plurality of locking claws 11 are protruded at intervals in the length direction. As shown, a total of three latching claws 11 of the upper position H1 on the inner surface 10a side and the latching claw on the 10b side are latched, and the lower position H2 is also similar to the latching claws on the inner surface 10a side. A total of three locking claws 11 on the 10b side are locked. In this manner, the six locking claws can be locked while opening the both side surfaces and the upper and lower steps of the stud bolt 4.

  Further, even when the stud bolt 4 protrudes from the vehicle body panel 3 with an inclination shifted from the vertical direction, the locking claw 11 is provided with an arc-shaped protruding portion 11-2, and a circular groove is formed in the screw groove 4b on the outer periphery of the stud bolt 4. Since the tip 11-3 of the arcuate protrusion 11-2 is in point contact, as shown in FIGS. 8A, 8B, and 8C, it can be easily locked in the screw groove 4b. For example, as shown in FIG. 8 (C), even when the stud bolt 4 is inclined by 30 degrees, the locking claw 11 can be locked in the screw groove 4b, and the 30-degree deviation can be absorbed. In the same manner as when it is not inclined, a total of six locking claws 11 can be locked and fixed in the thread groove 4b.

  In this way, by shortening the width s of one locking claw 11, even if the axis of the stud bolt 4 and the axis of the cylindrical member 10 are deviated, the locking of the stud bolt 4 having a small width is stopped. The nail | claw 11 can be latched and can absorb a position shift.

FIG. 9 shows a second embodiment.
In the second embodiment, the bracket 1c protruding from the protector 1 is provided with a bolt hole 1h that allows the stud bolt to pass through, and the stud bolt clip 2-B is connected via a connecting portion 1d that is hinged from the tip of the bracket 1c. Are provided integrally.
Since the stud bolt clip 2-B is the same as the configuration of the first embodiment and has the same operational effects, the description thereof is omitted.

  This invention is not limited to the said embodiment, You may increase / decrease the number of latching claws. In addition to the protector, a stud bolt clip may be provided on the electrical connection box and the wire harness locking member, and the stud bolt protruding from the panel may be locked.

DESCRIPTION OF SYMBOLS 1 Protector 2 Clip for stud bolts 3 Body panel 4 Stud bolt 10 Cylindrical member 11 (11a-11o) Locking claw

Claims (4)

A stud bolt clip comprising a cylindrical member that is externally fitted and locked to a stud bolt,
The cylindrical member has an oval shape, the inner diameter of the short axis of the cylindrical member is equal to the diameter of the male screw provided on the outer periphery of the stud bolt, and the inner diameter of the long axis of the cylindrical member is the male diameter of the stud bolt. It should be 1.5 times the diameter of the screw,
A plurality of locking claws are provided on the inner surfaces of the long sides on both sides of the cylindrical member so as to be inserted and locked into the screw grooves sandwiched between the male screws of the stud bolts.
The locking claws project from the upper position and the lower position of the inner surfaces of both sides of the long side of the cylindrical member at regular intervals in the length direction, and the tips of these locking claws protrude in an arc shape. In addition, the stud bolt clip is characterized in that the width of each locking claw is short enough to be locked at 4 to 6 locations on the outer periphery of the thread groove of the stud bolt. Three or more locking claws project from the inner surface on the long side of the cylindrical member at the same height and at regular intervals in the length direction, and project in a staggered arrangement between the long sides on both sides. ,
Furthermore, the clip for stud bolts of Claim 1 which provided the 3 or more latching nail | claw in the same height position by making the vertical height position different and having a fixed interval in the length direction by vertical zigzag arrangement.   Each of the locking claws has a tip projecting in an arc shape, the tip of the locking claw is brought into point contact with the thread groove of the stud bolt, and the width of the locking claw is the diameter (d) of the stud bolt. The clip for stud bolts according to claim 1 or 2, wherein the size is set to be 30% to 35% with respect to the threaded groove of the stud bolt so that three or more can be locked in one circumference of the screw groove.   4. The device according to claim 1, wherein the stud bolt is integrally provided on an in-vehicle component such as a protector, an electric junction box, and a wire harness binding material, and is fixed to the stud bolt protruding from the vehicle body panel or the panel fixed to the vehicle body. Stud bolt clip.

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