JP4283136B2 - Fixed structure, protector and electrical junction box - Google Patents

Description

  The present invention relates to a fixing structure, a protector, and an electrical junction box. For example, a protector and an electrical junction box can be relatively temporarily fixed to a mounting member and a bolt inserted through the mounting member, and the fixing structure is used. Related to protectors and electrical junction boxes.

Conventionally, a fixing structure used when attaching a protector or the like to a fixing member is known (see, for example, Patent Document 1).
As shown in FIG. 9, in this fixing structure 100, a bolt 103 on the attached portion side is inserted and fixed in a hole 102 formed on the attachment member side 101. For this reason, a locking arm 105 that protrudes oppositely to the hole 102 and is inclined in the insertion direction of the bolt 103 so as to approach the tip 104 side is provided, and the engagement arm 105 and the mounting member side 101 are engaged with each other. A rib 106 for supplementarily applying an elastic force to the stop arm 105 is provided.

Accordingly, the bolt 103 is opposed to the base 105 a side of the locking arm 105, and the bolt 103 is inserted into the hole 102 as it is to approach the tip 104 of the locking arm 105. When the bolt 103 is further pushed in, the locking arm 105 bends so that the tip 104 moves in a direction away from the bolt 103 around the base portion 105a side. At this time, the deformation of the locking arm 105 is allowed by the deformation of the rib 106. When the insertion of the bolt 103 is completed, the tip 104 of the locking arm 105 engages with the groove of the bolt 103 to temporarily fix the bolt 103.
Japanese Patent Laid-Open No. 7-190036 (FIG. 1)

By the way, in the fixing structure 100 described above, since the bolt 103 can be temporarily fixed before the final tightening, the mounting operation can be easily performed even when the bolt 103 is mounted upward. However, since the fixing structure 100 is integrally formed of resin and is easily deformed when the bolt 103 is finally tightened, it cannot be tightened without looseness or rattling. For this reason, there was an inconvenience that the bolt 103 is easily loosened.
On the other hand, in order to completely tighten the bolt 103, it is conceivable to insert a metal collar member 107 into the hole 102 and finally tighten the bolt 103 through the collar member 107 as shown in FIG. However, in this case, there is an inconvenience that the bolt 103 cannot be temporarily fixed because the locking portion cannot be provided on the inner surface of the collar member 107.

  The present invention has been made in view of the above-described problems, and the object thereof is to replace one of a through hole provided in a plate-like fixing portion and a bolt inserted into the through hole with respect to the other. It is an object of the present invention to provide a fixing structure, a protector, and an electrical junction box that can be temporarily fixed, loosen bolts, and can be tightened without rattling.

To achieve 1) above object, fixing structure according to the present invention, a through hole cylindrical body which is exposed on both sides of the fixing portion in a hole provided in the plate-shaped fixing portion is accommodated, wherein A fixing structure for temporarily fixing one of the bolts inserted into the through hole containing the cylindrical body to the other, a pair of plate portions along both surfaces of the fixing portion, and the pair of plate portions Each of the pair of plate portions is provided with a substantially U-shaped temporary fixing member in which a communication hole communicating with the through hole is formed, and the communication hole of the temporary fixing member Each is provided with a plurality of locking pieces protruding from the peripheral edge of the communication hole in the axial direction of the communication hole and locking to the bolt .

In the fixing structure configured as described above, the attached component is attached by inserting a bolt into a through hole provided in the fixing portion. At this time, a pair of plate portions of the temporary fixing member are arranged along both surfaces of the fixing portion through a high-strength cylindrical body made of, for example, metal that penetrates to both surfaces of the fixing portion in the through hole, and is provided on the plate portion The communicating hole is communicated with the through hole. Since the connecting hole is provided with a locking piece capable of locking the bolt, when the bolt is inserted through the cylindrical body from the communicating hole, the bolt is temporarily fixed by the locking piece. For this reason, especially when fastening the bolt upwards, the final fastening can be performed after the bolt is temporarily fixed, so that the bolt fastening operation can be easily performed. In addition, since the high-strength cylindrical body penetrates the through hole of the fixed part, even if the fixed part is a soft member such as resin, the bolt is securely loosened without crushing the fixed part and without rattling. Can be tightened.

In this fixing structure, a pair of plate portions are connected in a U-shape to form a temporary fixing member. One plate portion abuts one surface of the fixing portion and the other plate portion is fixed. Since it contacts the other surface of the part, the temporary fixing member can be easily attached to the fixing part.
In addition, since the bolts can be temporarily fixed on the two plate portions by providing both the locking pieces in the communication holes of the two plate portions in the bolt insertion direction, more reliable temporary fixing can be performed. Alternatively, if both of the locking pieces of the two plate portions are directed toward the inside of the U shape, the bolt can be temporarily fixed even if the bolt is inserted from any direction.

2 ) The fixing structure according to the present invention includes a through hole in which a cylindrical body exposed on both surfaces of the fixing portion is accommodated in a hole provided in a plate-shaped fixing portion, and the through hole in which the cylindrical body is accommodated. A fixing structure for temporarily fixing one of the bolts inserted into the hole to the other, and having a plate portion along one surface of the fixing portion, and a communication hole communicating with the through hole in the plate portion The communication hole of the temporary fixation member is provided with a plurality of locking pieces that are bent from the periphery of the communication hole along the inner peripheral surface of the cylindrical body. The tip of the piece is bent toward the axial center of the cylinder inside the cylinder so as to be engaged with the bolt .

  In the fixing structure configured as described above, the communication hole is easily and accurately positioned at the through hole position by positioning the plate portion so that the locking piece extends along the inside of the cylindrical body. Moreover, since the locking piece is inside the cylinder when the bolt is inserted, the appearance is good.

3 ) Further, the protector according to the present invention is characterized in that the fixing structure described above is provided.

  In the protector configured as described above, when the protector is attached to the fixing portion with the bolt, the bolt is temporarily fixed by the temporary fixing member, and therefore, particularly, the work of bolting upward can be easily performed. Further, since the high-strength cylindrical body penetrates the fixing portion and is exposed on both surfaces of the fixing portion, the cylindrical body is tightened when the bolt is completely tightened. For this reason, even if the fixing portion is formed of a soft material such as resin, the bolt can be loosened and tightened without rattling without being deformed.

4 ) Further, the electrical junction box according to the present invention is characterized in that the fixing structure described above is provided.

  In the electrical junction box configured as described above, when the electrical junction box is attached to the fixing portion with the bolt, the bolt is temporarily fixed by the temporary fixing member, so that the work of bolting upward in particular can be easily performed. it can. Further, since the high-strength cylindrical body penetrates the fixing portion and is exposed on both surfaces of the fixing portion, the cylindrical body is tightened when the bolt is completely tightened. For this reason, even if the fixing portion is formed of a soft material such as resin, the bolt can be loosened and tightened without rattling without being deformed.

According to the present invention, when an electric component or the like is attached to the fixing portion with a bolt, the bolt is temporarily fixed by the temporary fixing member, so that, for example, an operation of bolting upward can be easily performed.
Further, since the high-strength cylindrical body penetrates the fixing portion and is exposed on both surfaces of the fixing portion, the cylindrical body is tightened when the bolt is completely tightened. For this reason, even if the fixing portion is formed of a soft material such as resin, the bolt can be loosened and tightened without rattling without being deformed.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments according to the present invention will be described in detail with reference to the drawings. 1A is a cross-sectional view showing an embodiment according to the fixing structure of the present invention, FIG. 1B is a bottom view, FIG. 2 is a perspective view showing a protector as an example provided with the fixing structure according to the present invention, FIG. 4 is a plan view and a cross-sectional view of the cylindrical body, FIG. 4 is a bottom view of a cross-sectional view and a fixed structure provided with a plurality of locking pieces, and FIGS. FIG. 6A to FIG. 6E are explanatory views of the orientation of the locking pieces when a pair of plate portions are provided on the temporary fixing member, FIG. 7 is a perspective view showing a temporary fixing member provided with a claw portion on at least one of the plate portion and the support portion, and FIG. 8 is a cross-sectional view showing another shape of the locking piece.

  As shown in FIGS. 1 and 2, a fixing structure 10 according to an embodiment of the present invention includes a protector for attaching a protector 11, an electrical connection box 12, and the like to a bolt 13 erected on a vehicle body (not shown). 11 or the electrical junction box 12 or the like.

  In this fixing structure 10, in order to temporarily fix the through hole 21 and the bolt 13 provided in the plate-like fixing portion 20 to each other, they are accommodated in the through hole 21 and exposed to both surfaces 20 a and 20 b of the fixing portion 20. And a temporary fixing member 40 having a plate portion 41 extending along at least one surface 20b (20a) of the fixing portion 20 and a communication hole 42 communicating with the through hole 21 formed in the plate portion 41. . In the plate portion 41, a locking piece 43 that can be locked to the bolt 13 is provided so as to protrude in the axial direction of the communication hole 42.

  As shown in FIG. 1, the cylindrical body 30 may be a simple cylindrical one, but as shown in FIG. 3, the cylindrical body 30 may have a collar 31 at one end. In this case, the collar 31 is preferably embedded so that the end surface 31a of the collar 31 is flush with the upper surface 20a or the lower surface 20b of the fixing portion 20. In addition, as the cylinder 30, the thing with strong strength, such as metal, is used.

As shown in FIG. 4, the plate portion 41 of the temporary fixing member 40 may be provided on the side where the bolt 13 is inserted in the fixing portion 20 (the lower side in FIG. 4). A plurality of locking pieces 43 are provided, and each locking piece 43 is provided so as to be tapered toward the tip side in the insertion direction of the bolt 13 (upward in FIG. 4). The flat plate portion 41 is used by being attached to the fixing portion 20 by adhesion or the like.
At this time, the outer surface 41 a of the plate portion 41 may be flush with the one surface 20 b of the fixed portion 20. That is, it is preferable that a concave portion having the shape and thickness of the plate portion 41 is provided on one surface 20b of the fixing portion 20, and the plate portion 41 is embedded and fixed integrally or with an adhesive.

5A and 5B, the temporary fixing member 40 has a plate portion 41 along the one surface 20b of the fixing portion 20 and a support portion 44 along the other surface 20a. A state is shown in which the portion 44 is connected in a substantially U-shape.
The interval between the plate portion 41 and the support portion 44 is appropriately changed according to the thickness of the fixed portion 20 so that the fixed portion 20 is sandwiched between the plate portion 41 and the support portion 44 with a slight pinching force. To do.

FIG. 5A shows a case where the support portion 44 is a single plate-like member 44a. In this case, a through hole 45 is provided at a position corresponding to the through hole 21 of the fixing portion 20 in the support portion 44a so as not to interfere with the bolt 13 to be inserted. In addition, although the width | variety of the support part 44 can be made the same width as the board part 41, you may make it narrow.
FIG. 5B shows a case where the support portion 44 is composed of two strip members 44b. In this case, the belt-like member 44b is provided from one end of the flat plate portion 41, and the support portion 44 is formed by being bent in a “tsu” shape. If the inserted bolt 13 passes between the two belt-like members 44b, it is not necessary to provide the through-hole 45 or the like as provided in the case of the plate-like member 44a shown in FIG. .

  Thus, if the temporary fixing member 40 is provided with the support portion 44 parallel to the plate portion 41, the temporary fixing member 40 can be easily attached to the fixing portion 20 without using an adhesive or the like as described above. Workability can be improved. Further, the temporary fixing member 40 can be easily detached from the fixing portion 20.

6A to 6E show the inclination direction of the locking piece 43 when the pair of plate portions 41a and 41b are provided on the temporary fixing member 40. FIG. In this case, the plate portions 41 a and 41 b also function as the support portion 44. Here, it is assumed that the bolt 13 is relatively inserted upward from the lower side.
As shown in FIG. 6A, the lower plate portion 41a and the upper plate portion 41b are both provided with locking pieces 43 that taper toward the distal end side in the insertion direction of the bolt 13. . In this case, when the bolt 13 is inserted upward, it can be said that the bolt 13 is smoothly inserted and locked in the both plate portions 41a and 41b, which is most preferable.

  In FIG. 6 (B), the locking piece 43 of the lower plate portion 41a is provided so as to taper toward the distal end side in the insertion direction of the bolt 13, but in the upper plate portion 41b, the engaging piece 43 is engaged. The stop piece 43 is provided in the direction opposite to the lower plate portion 41a. Accordingly, the locking pieces 43 of the two plate portions 41 a and 41 b are provided toward the inside of the temporary fixing member 40. In this case, the bolt 13 inserted upward passes smoothly through the lower plate portion 41a and is locked by the locking piece 43, but the locking piece 43 provided on the upper plate portion 41b. Moves against the insertion of the bolt 13, so the upper plate portion 41b is difficult to penetrate.

In FIG. 6C, the locking pieces 43 of both plate portions 41a and 41b are both provided downward, which resists insertion of the bolt 13 upward. Further, in FIG. 6D, the locking piece 43 is provided downward in the lower plate portion 41a, and the locking piece 43 is provided upward in the upper plate portion 41b. The locking piece 43 of the lower plate portion 41a resists.
Further, in FIG. 6E, the locking pieces 43 of both plate portions 41 a and 41 b are both provided horizontally and locked to the bolt 13.

  As described above, the direction of the locking pieces 43 provided on the pair of plate portions 41a and 41b can be variously provided. In any case, the inserted bolt 13 can be locked, so that the upward direction is particularly upward. The bolt 13 can be easily tightened.

As shown in FIG. 7, at least one of the plate portion 14 and the support portion 44 (support portion in FIG. 7) is provided with a claw portion 46 that can be locked to the fixing portion 20. Thereby, the temporary fixing member 40 attached to the fixing portion 20 can be prevented from falling off. The plate portion 41 may be provided with a claw portion 46.
Further, the claw portions 46 may be provided on both the plate portion 41 and the support portion 44. Further, when the pair of plate portions 14 are provided, the claw portion 46 can be provided on at least one of the plate portions 14.
Furthermore, it is more effective if the fixing portion 20 is provided with, for example, a recess for locking the claw portion 46. In addition, it is convenient to remove the temporary fixing member 40 from the fixing portion 20 if the plate portion 41 or the support portion 44 provided with the claw portion 46 is provided with a knob 47 for pulling up the claw portion 46.

FIG. 8 shows a case where a part 48 of the locking piece 43 of the temporary fixing member 40 is bent along the inner peripheral surface of the cylindrical body 30. That is, the locking piece 43 is bent at a right angle along the inner surface of the cylinder 20 from the plate portion 41, and is bent toward the center of the cylinder 20 inside the cylinder 20. In this case, the cylindrical body 30 having a large inner diameter is used because the cylindrical body 30 is narrowed by the locking piece 43.
In this way, the cylindrical body 30 can be provided in the through hole 21 of the fixing portion 20, and the locking piece 43 for temporarily fixing the bolt 13 can be provided inside the cylindrical body 30.

As described above, according to the fixing structure 10 described above, the temporary fixing member 40 is temporarily fixed to the bolt 13 when the electric component or the like is attached to the fixing portion 20 with the bolt 13 erected on the vehicle body. It is possible to easily perform the bolting operation. In addition, since the high-strength cylindrical body 30 penetrates the fixed portion 20 and is exposed on both surfaces of the fixed portion 20, the cylindrical body 30 is tightened when the bolt 13 is completely tightened. For this reason, even if the fixing portion 20 is formed of a soft material such as resin, the bolt can be loosened and tightened without rattling without being deformed.
Further, in the protector 11 and the electrical connection box 12 in which the fixing structure 10 described above is provided as an attachment portion, the bolt 13 can be temporarily fixed even when the protector 11 and the electrical connection box 12 are attached from the lower side of the fixation portion 20, Easy to install.

  The fixing structure, protector, and electrical junction box of the present invention are not limited to the above-described embodiments, and appropriate modifications and improvements can be made.

(A) is sectional drawing which shows embodiment which concerns on the fixed structure of this invention, (B) is a bottom view. It is a perspective view which shows the protector which is an example which provided the fixing structure which concerns on this invention. It is the top view and sectional drawing of a cylinder. It is sectional drawing and the bottom view of the fixing structure which provided the some locking piece. (A), (B) is a perspective view which shows the temporary fixing member by which the board part and the support part were connected by substantially U shape. (A)-(E) are explanatory drawings of the direction of the locking piece at the time of providing a pair of board part in a temporary fixing member. It is a perspective view which shows the temporary fixing member which provided the nail | claw part in at least one of the board part and the support part. It is sectional drawing which shows another shape of a locking piece. It is sectional drawing which shows the conventional fixing structure. It is sectional drawing which shows the conventional problem.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Fixing structure 11 Protector 12 Electrical junction box 13 Bolt 20 Fixing part 21 Through hole 30 Cylindrical body 40 Temporary fixing member 41 Plate part 42 Communication hole 43 Locking piece 44 Support part 46 Claw part

Claims (4)

One of a through hole in which a cylindrical body exposed on both surfaces of the fixing portion is accommodated in a hole provided in the plate-shaped fixing portion and a bolt inserted into the through hole in which the cylindrical body is accommodated. A fixing structure for temporarily fixing to the other,
It has a pair of plate parts along both sides of the fixed part, and a connecting part that connects the pair of plate parts, and a communication hole that communicates with the through hole is formed in each of the pair of plate parts. Equipped with a U-shaped temporary fixing member,
Each of the communication holes of the temporary fixing member is provided with a plurality of locking pieces that protrude from the peripheral edge of the communication hole in the axial direction of the communication hole and are locked to the bolt. Construction. One of a through hole in which a cylindrical body exposed on both surfaces of the fixing portion is accommodated in a hole provided in the plate-shaped fixing portion and a bolt inserted into the through hole in which the cylindrical body is accommodated. A fixing structure for temporarily fixing to the other,
A temporary fixing member having a plate portion along one surface of the fixing portion, wherein the plate portion is formed with a communication hole communicating with the through hole;
The communication hole of the temporary fixing member is provided with a plurality of locking pieces that bend from the peripheral edge of the communication hole along the inner peripheral surface of the cylindrical body, and the distal end portion of the locking piece is locked to the bolt. Thus, the fixing structure is bent toward the axial center of the cylindrical body inside the cylindrical body . A protector comprising the fixing structure according to claim 1. An electrical junction box provided with the fixing structure according to claim 1.

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