JP2007002811A - Support structure for parts - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a support structure for parts preventing generation of noise such as rattle even if fastening is loosened. <P>SOLUTION: An engagement means 7 is provided on a pair of fastening pieces 651, 652 extending outward from both ends of a holder part 65 od a pump holder 6 fastening an outer circumference of a fuel pump 4. The engagement means 7 is provided with a locking member 71 provided on the insertion side fastening piece 651 and a locking member insertion hole 73 formed on the socket side fastening piece 652 and a lock plate 72 which can be engaged with a bolt 66. The lock plate 72 is provided with a key hole 74 in which the locking member 71 can be inserted through. The key hole 74 is formed in a shape that the lock member 72 can not pass through a coming-off prevention part 71b when the lock member 72 is arranged in a lock position where the same engages with the bolt 66. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a component support structure.

  As a part support structure, a fuel pump support structure will be described as an example.

Conventionally, a pump holder is mounted on the outer periphery of a fuel pump, the pump holder is fastened with bolts and nuts as fastening means, and a mounting member that supports the pump holder is attached to the vehicle body with bolts and nuts. A pump support structure is known (see, for example, Patent Document 1).
No. 8-5347

  However, in this conventional fuel pump support structure, bolts and nuts are used for mounting the pump holder and mounting the mounting member to the vehicle body. Therefore, when the bolts are loosened due to running vibration or the like, the fuel pump will rattle. May cause abnormal noise.

  Further, this is not limited to the fuel pump, and the same applies to the component support structure.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a component support structure capable of suppressing generation of abnormal noise due to rattling of components even when loosening occurs.

  The present invention has been made in view of the above circumstances, and includes a holder portion that surrounds at least a part of the outer periphery of a component, and a pair of fastening pieces that extend outward from the holder portion from both ends of the holder portion. In the component support structure in which the pair of fastening pieces are fastened by fastening means and the holder part is reduced to support the part, the pair of fastening pieces are engaged to maintain the holder part in a reduced state. Providing a possible engaging means, and supporting the component while maintaining the holder portion in a contracted state by the engaging means when the fastening of the pair of fastening pieces by the fastening means is released. The most important feature.

  According to the present invention, when assembling a part, the holder part is mounted on the outer periphery of the part, the pair of fastening pieces extending outward from both ends of the holder part are fastened by the fastening means, and the holder part is reduced to support the part. To do. Further, the pair of fastening pieces are engaged by the engaging means, and the holder portion is maintained in a contracted state.

  Therefore, even if the fastening by the fastening means is loosened, the engaging means is engaged with the pair of fastening pieces and the holder portion is maintained in a contracted state.

  For this reason, the holding | maintenance state of the components by a holder part can be maintained, and it can suppress that abnormal noise generate | occur | produces because components rattle.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  The component support structure of this embodiment includes a holder portion (65) surrounding at least a part of the outer periphery of the fuel pump (4) as a component, and an outer portion of the holder portion (65) from both ends of the holder portion (65). A pair of fastening pieces (651, 652) extending in the direction, the pair of fastening pieces (651, 652) are fastened by fastening means (66, 651), and the holder portion (65) is reduced to reduce the holder part (65). Engaging means (7) capable of maintaining the holder portion (65) in a contracted state by engaging the pair of fastening pieces (651, 652) in the support structure of the component that supports the fuel pump (4). When the fastening of the pair of fastening pieces (651, 652) by the fastening means (66, 651) is released, the holder part (65) is contracted by the engaging means (7) To maintain the fuel pump (4) It is a structure that.

  1 to 7 show a fuel pump support structure of Example 1 of the best mode of the present invention.

  First, the overall schematic configuration will be described.

  As shown in the overall view of FIG. 2, a fuel tank 2 is attached to the lower surface of the vehicle body 1 of the automobile. A fuel pipe 3 that guides fuel from the fuel tank 2 to an engine (not shown) is provided on the lower surface of the vehicle body 1. Further, a substantially cylindrical fuel pump 4 is provided in the middle of the fuel pipe 3.

  As shown in FIG. 1, hollow prismatic side frames 11 are provided on the left and right sides of the lower surface of the vehicle body 1 so as to extend in the vehicle front-rear direction. 1 shows a side frame 11 provided on the right side of the vehicle body 1. In the drawing, an arrow FR indicates the front of the vehicle, an arrow UP indicates the upper side of the vehicle, and an arrow LS indicates the left direction of the vehicle.

  A fuel pump 4 as a part is supported via a pump holder 6 and a support bracket 5 on a side surface 11 a facing the vehicle center side of the side frame 11.

That is, the fuel pump 4 is supported by the vehicle body 1 by attaching the pump holder 6 attached to the fuel pump 4 to the support bracket 5 fixed to the vehicle body 1.
The support bracket 5 is formed of an L-shaped metal plate material having a substantially right angle, and is fixed to the side surface 11a of the side frame 11 with three bolts 51, 51, 51 and extends in the vehicle vertical direction. The mounting plate 52 includes a substantially horizontal support plate 53 that extends from the lower end of the mounting plate 52 toward the inside of the vehicle and supports the fuel pump 4. The bolts 51, 51, 51 are fastened to weld nuts 13, 13, 13 welded to the side frame 11.

  On the other hand, the pump holder 6 is formed of a metal plate material, and as shown in FIG. 3, a main body 62 that holds the fuel pump 4 with an elastic material 61 such as rubber interposed therebetween, and supports the main body 62. The support bracket And a pedestal portion 63 attached to the support plate 53.

  The pedestal portion 63 includes a substrate 63a attached to the support plate 53 in an overlapping manner, and connecting plates 63b and 63b raised from both sides of the substrate 63a, and is formed in a substantially U-shaped cross-section. 63a has a plurality of mounting holes 63c, 63c for inserting bolts. The pedestal 63 is attached to the support bracket 5 by fastening bolts 63d and 63d inserted through the attachment holes 63c and 63c to nuts 53a and 53a provided on the lower surface of the support plate 53 of the support bracket 5. Yes.

  As shown in FIG. 1, the main body 62 has a support portion 64 that supports the lower surface and the side surface of the fuel pump 4, and an outer surface of the fuel pump 4 that extends from both ends of the support portion 64 in the vehicle front-rear direction. And a pair of holder portions 65, 65 that surround substantially the entire circumference, and is formed in a substantially inverted Ω-shaped cross section.

  The support portion 64 is coupled to the connecting plates 63b and 63b of the pedestal portion 63 by welding or the like, and the support portion 64 is coaxial with the mounting holes 63c and 63c of the pedestal portion 63 and is a work hole for bolt fastening work. 64a and 64a are formed.

  Further, the upper ends of the holder portions 65 and 65 are opened, and an insertion side fastening piece 651 and a receiving side fastening piece 652 which are a pair of fastening pieces raised above the vehicle face each other at the open portion. Is formed. As shown in FIG. 3, bolt insertion holes 651 a and 652 a through which the bolts 66 are inserted are formed facing each of the fastening pieces 651 and 652, and the bolt insertion holes 651 a of the insertion side fastening pieces 651 are A weld nut 651b is provided coaxially.

  That is, the holder portion 65 is fastened to the weld nut 651b with the bolt 66 inserted into the bolt insertion holes 651a and 652a from the receiving-side fastening piece 652 side, and the interval between the fastening pieces 651 and 652 is reduced. The fuel pump 4 is tightened and held.

  Here, in this embodiment, as shown in FIG. 4, the bolt 66 is formed with an engaging groove 66b over the entire outer periphery of the head 66a, and the engaging groove 66b is more frictional than metal such as rubber. An anti-slip member 67 having a large resistance is attached.

  In addition, both fastening pieces 651 and 652 of the holder portion 65 are provided with engagement means 7 for maintaining the holder portion 65 in the fuel pump holding state.

  The engaging means 7 includes a locking member 71, a lock plate 72 as a locking member, a locking member insertion hole (locking member insertion portion) 73, and a key hole 74.

  The locking member 71 is formed by extending the distal end portion of the insertion-side fastening piece 651, and as shown in FIG. 5, the insertion portion 71a extending toward the receiving-side fastening piece 652, and the insertion portion 71a And a retaining portion 71b provided extending in the vehicle front-rear direction at the tip, and is formed in a substantially T shape in plan view.

  The locking member insertion hole 73 is a hole formed long in the vehicle front-rear direction at the vehicle upper position of the bolt insertion hole 652a in the receiving side fastening piece 652, and is inserted through the retaining portion 71b and the insertion portion 71a of the locking member 71. It is made possible.

  The lock plate 72 is a substantially rectangular metal plate and includes a key hole 74 and a notch 75.

  The key hole 74 includes a circular insertion portion hole 74a and a pair of retaining portion holes 74b extending symmetrically from the insertion portion hole 74a in the outer diameter direction. That is, as shown in FIG. 7 (a), the key hole 74 is inserted into the insertion portion 71a and the retaining portion 71b of the insertion-side fastening piece 651 with the lock plate 72 extending in the substantially horizontal direction. It is formed in a shape and size that can be inserted. Further, the insertion portion hole 74a has an inner diameter that allows the lock plate 72 to be rotated around the insertion portion 71a as shown in FIGS. 7A and 7B with the insertion portion 71a being inserted. Is formed.

  Further, the notch 75 is formed below the key hole 74 of the lock plate 72, and when the lock plate 72 is rotated around the insertion portion 71a from the state shown in FIG. As shown in FIG. 7B, the position and size are such that the portion of the anti-slip member 67 can be sandwiched from above and below so as to engage with the groove 66b of the head 66a of the bolt 66. Further, in the first embodiment, the inner diameter of the notch 75 is such that the anti-slip member 67 provided on the head 66a of the bolt 66 by the notch 75 when the lock plate 72 is disposed at the lock position is It is formed in such a size as to be compressed and deformed.

  As shown in FIG. 7B, the position where the longitudinal direction of the lock plate 72 is arranged along the vertical direction is the lock position of the lock plate 72. In the locked position, the retaining portion hole 74b extends in the vehicle vertical direction, which is a direction orthogonal to the extending direction (vehicle longitudinal direction) of the retaining portion 71b of the locking member 71, and the retaining portion 71b is a key. It cannot pass through the hole 74.

  Further, the key hole 74 of the lock plate 72 is disposed at a position above the vehicle of the notch 75 when the notch 75 is engaged with the bolt 66 at the lock position shown in FIGS. 5 and 7B. It is formed to be. Further, the key hole 74 is formed so that the insertion portion hole 74 a is disposed at a position above the vehicle with respect to the center of gravity of the lock plate 72 at the lock position.

  Next, the operation of the fuel pump support structure of Example 1 will be described.

  First, the assembly procedure will be described.

  When the pump holder 6 is mounted on the outer periphery of the fuel pump 4, the engaging members 71 of the engaging means 7 are inserted into the engaging member insertion holes 73 in the fastening pieces 651 and 652 of the holder portions 65 and 65 of the pump holder 6. Let

  Then, in both fastening pieces 651 and 652, the bolt 66 is inserted into the bolt insertion holes 651a and 652a and fastened to the weld nut 651b, and the fuel pump 4 is firmly tightened by the holder portions 65 and 65. That is, the bolt 66 is fastened and the distance between the fastening pieces 651 and 652 is narrowed, so that the metal holder portion 65 is elastically deformed so as to be squeezed inward, and the fuel pump 4 is held by the pump holder 6. .

  Next, the lock plate 72 is attached. In this case, first, as shown in FIG. 7A, the key hole 74 is inserted through the locking member 71 with the longitudinal direction of the lock plate 72 facing the substantially horizontal direction.

  Next, the lock plate 72 is rotated clockwise around the locking member 71 and arranged at the lock position shown in FIG. In this locked position, the notch 75 engages with the engagement groove 66b while compressing the anti-slip member 67 of the head 66a of the bolt 66.

  This completes the assembly.

  Next, during traveling, the vibration of the fuel pump 4 or the input from the road surface may act on the bolt 66 in the direction of loosening its fastening.

  However, in the first embodiment, the head 66a of the bolt 66 is sandwiched from above and below by the notch 75 of the lock plate 72, and the bolt 66 is prevented from loosening.

  In addition, in the first embodiment, since the engaging groove 66b is formed in the head 66a of the bolt 66, and the notch 75 of the lock plate 72 is engaged with the engaging groove 66b, the bolt 66 is loosened and pulled out. Is more reliably suppressed.

  Further, in the first embodiment, since the anti-slip member 67 having a large frictional resistance such as rubber is mounted in the groove 66 of the bolt 66 and interposed between the notch 75 of the lock plate 72, the bolt 66 is loosened. Is further prevented.

  In the case where the bolt 66 is loosened, in the first embodiment, the retaining portion 71b of the locking member 71 provided on the insertion side fastening piece 651 is provided on the lock plate 72 disposed at the lock position. Since the key hole 74 cannot be passed, the locking member 71 is prevented from coming off. Therefore, both the fastening pieces 651 and 652 are maintained in a state where the interval is narrowed, the holder portion 65 is maintained in a state where the fuel pump 4 is tightened, and the pump holder 6 can maintain the holding state of the fuel pump 4. it can.

  Therefore, it is possible to suppress the generation of noise due to the fuel pump 4 rattling with respect to the pump holder 6.

  Further, since the key hole 74 of the lock plate 72 is positioned above the vehicle with respect to the bolt 66 in the assembled state, even if the bolt 66 is loosened, the cutout portion 75 that sandwiches the bolt 66 is provided. Is held below the keyhole 74 by the action of gravity. Accordingly, it is difficult to rotate to the position shown in FIG. 7A where the lock plate 72 can be removed from the locking member 71, and the lock plate 72 is pulled out of the locking member insertion hole 73. Functions as a stopper to prevent

  Moreover, the insertion portion hole 74 a of the key hole 74 is disposed at a position above the vehicle relative to the center of gravity of the lock plate 72. Therefore, in the unlikely event that the bolt 66 is loosened, the lock plate 72 tries to maintain the lock position by its own weight, and this also prevents the locking member 71 from coming out of the locking member insertion hole 73. It can be made more reliable to function as a stopper.

  FIGS. 8-10 demonstrates the fuel-pump support structure of Example 2 of embodiment of this invention. Parts that are the same as or equivalent to those in the first embodiment are denoted by the same reference numerals, description thereof is omitted, and parts different from those in the first embodiment are mainly described.

  The difference of the second embodiment from the first embodiment is that the lock plate 272 includes a circular opening 275 through which the bolt 66 is inserted instead of the notch 75 of the first embodiment, as shown in FIGS. It is a point.

  When the lock plate 272 is assembled, first, the locking member 71 is inserted into the locking member insertion hole 73 as shown in FIG. Thereafter, the lock plate 272 is rotated to the lock position shown in FIG. 10B, the positions of the opening 275 and the bolt insertion hole 652a of the receiving side fastening piece 652 are matched, and the bolt 66 is fastened to the weld nut 651b. . As a result, the lock plate 272 is engaged with the bolt 66, and is sandwiched between the head 66a of the bolt 66 and the receiving-side fastening piece 652, as shown in FIGS.

  In the second embodiment, since the lock plate 272 prevents the locking member 71 from coming off even if the bolt 66 is loosened, the locking member 71 does not come out of the locking member insertion hole 73 of the receiving side fastening piece 652, and the pump The holder 6 can maintain the holding state of the fuel pump 4.

  Therefore, it is possible to suppress the generation of noise due to the fuel pump 4 rattling with respect to the pump holder 6.

  Other configurations and operational effects are the same as or equivalent to those of the first embodiment, and thus the description thereof is omitted.

  As described above, the embodiment of the present invention and each of the first and second embodiments have been described in detail with reference to the drawings, but the specific configuration is not limited to this embodiment and each of the first and second embodiments. Design changes that do not depart from the gist of the invention are included in the present invention.

  The locking member 71 is not limited to a plate shape, but may have other shapes such as a rod shape. Further, the retaining portion 71b can be of other shapes such as a spherical shape. For example, the locking member 400 shown in FIG. 11 includes a rod-shaped insertion portion 400a and a spherical retaining portion 400b. In addition, the lock plate 472 has a circular hole through which the locking member insertion hole 474 can be inserted through the retaining portion 400b. The same effect as in the first and second embodiments can be obtained by the locking member 400 and the lock plate 472 having such a shape. The lock plate 472 has a notch portion 475 when the insertion portion 400a is disposed at the upper end of the elongated hole portion of the locking member insertion hole 474 in the drawing and rotated downward in the same manner as in the first embodiment. It is assumed that the outer bolt 66 is engaged.

  Further, in the first and second embodiments, the plate-like lock plates 72 and 272 are shown as the lock members. However, the shape is not limited to the plate shape as long as it has a key hole and can be attached to the bolt. . For example, like the lock member 572 shown in FIG. 12, it has the ring-shaped part 572a which has the key hole 574 which can insert the locking member 71, and the engaging part 575 engaged with the head 66a of the volt | bolt 66. A shape having a C-shaped portion 572b may be used.

  In the first embodiment, the anti-slip member 67 is provided on the head portion 66a of the bolt 66. However, the present invention is not limited to this as long as it is interposed between the bolt 66 and the lock member and provides resistance to loosening the bolt 66. . For example, the anti-slip member may be provided on the inner periphery of the notch 75, or may be provided on both the head 66 a of the bolt 66 and the inner periphery of the notch 75. Furthermore, in the second embodiment, an example in which the anti-slip member is not provided is shown. However, an anti-slip member is interposed between the end surface of the head portion 66a of the bolt 66 and the lock plate 72, or the inner periphery of the opening 275 is provided. Even if the bolt 66 is provided, loosening of the bolt 66 can be suppressed.

  In the above description, the support structure of the fuel pump has been described. However, the present invention is not limited to this, and it is needless to say that the support structure can be applied to a support structure other than the fuel pump.

It is a perspective view which shows the fuel pump support structure of Example 1 of embodiment of this invention. 1 is a perspective view of a vehicle to which a fuel pump support structure of Example 1 of an embodiment of the invention is applied. It is a longitudinal cross-sectional view which shows the fuel pump support structure of Example 1 of embodiment of this invention. It is explanatory drawing which showed the part which shows the volt | bolt 66 of the fuel pump support structure of Example 1 of embodiment of this invention in the cross section. It is a perspective view which shows the principal part of the fuel pump support structure of Example 1 of embodiment of this invention. It is the cross-sectional view cut by the S6-S6 line of FIG. 3 which shows the principal part of the fuel pump support structure of Example 1 of embodiment of this invention. It is explanatory drawing which shows the assembly work procedure of the fuel pump support structure of Example 1 of embodiment of this invention, (a) shows the time of the assembly | attachment of the lock plate 72, (b) locks the lock plate 72 The locked state arranged at the position is shown. It is a longitudinal cross-sectional view which shows the fuel pump support structure of Example 2 of embodiment of this invention. FIG. 9 is a cross-sectional view taken along line S9-S9 in FIG. 8 showing a main part of the fuel pump support structure of Example 2 of the embodiment of the invention. It is explanatory drawing which shows the assembly work procedure of the fuel pump support structure of Example 2 of embodiment of this invention, (a) shows the state arrange | positioned in the assembly position of the lock plate 272, (b) is locking The state which has arrange | positioned the plate 272 in the lock position is shown. It is a perspective view which shows the principal part of the other example of embodiment of this invention. It is a perspective view which shows the principal part of the other example of embodiment of this invention.

Explanation of symbols

1 Car body 4 Fuel pump (parts)
DESCRIPTION OF SYMBOLS 5 Support bracket 6 Pump holder 7 Engagement means 65 Holder part 66 Bolt 66a Head part 66b Engagement groove 67 Anti-slip member 71 Locking member 71b Retaining prevention part 72 Lock plate (lock member)
73 Locking member insertion hole 74 Key hole 75 Notch 272 Lock plate (lock member)
275 Opening 651 Insertion side fastening piece 652 Reception side fastening piece

Claims (8)

A holder portion surrounding at least a part of the outer periphery of the component, and a pair of fastening pieces extending outward from the holder portion from both ends of the holder portion,
In the component support structure for fastening the pair of fastening pieces with fastening means and reducing the holder part to support the component,
An engagement means that can maintain the state in which the holder portion is contracted by engaging the pair of fastening pieces is provided,
A component support structure, wherein when the pair of fastening pieces is unfastened by the fastening means, the part is supported while the holder portion is contracted by the engaging means.   The engaging means includes a locking member extending from one fastening piece toward the other fastening piece, and a locking member insertion portion provided so that the locking member can be inserted into the other fastening piece. The component support structure according to claim 1, further comprising: a locking member that prevents the locking member inserted through the locking member insertion portion from coming off. The locking member is provided with a retaining portion at a tip portion thereof,
The lock member includes a key hole into which the locking member can be inserted,
3. The component support structure according to claim 1, wherein the key hole is formed in a shape that cannot pass through the retaining portion when the lock member is disposed at the lock position.   The component support structure according to claim 3, wherein the lock member has an opening through which a bolt as the fastening means can be inserted, and the bolt is inserted into the opening and engaged with the bolt. .   The locking member has a notch that engages with the head of the bolt when the locking member is inserted into the keyhole and rotated around the vicinity of the locking member. The component support structure according to claim 3.   The component support structure according to claim 5, wherein an engagement groove with which the notch is engaged is formed in a head portion of the bolt.   7. A non-slip member provided between at least one of the engaging groove and the notch of the bolt and interposed between the engaging groove and the resistance of turning the bolt. Support structure for parts as described in 1.   6. The lock member according to claim 4 or 5, wherein the key hole is disposed above the bolt engagement portion with the lock member engaged with the bolt at the lock position. Support structure for the described part.

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