JP2009150477A - Fixture - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fixture facilitating work attaching an attaching member gripped by a clip and a grommet to an attached member by groping blind work. <P>SOLUTION: The fixture 1 includes the clip 2 and the grommet 3. The grommet 3 includes an inner tube part 21, a flange 22 having surface contact with one surface of a cover 5, and a polygonal tubular portion 23 extending from the flange. The clip 2 is provided with a flange 11 and an outer tube part 10 extending from the flange 11 and receiving the inner tube part 21. The clip 2 is provided with a bell shape guide 9 inclined wider and larger toward an end so as to pick up a stud 7 of a body panel 6 by groping and to guide the same to an inside. The guide 9 is formed in a large diameter annular shape in which an end edge 14 thereof erects in the axial direction. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a fixture for attaching an attachment member such as a cover to a member to be attached such as a panel, for example, a fixture suitable for attaching a floor cover to a body panel of an automobile.

  It is well known to attach a cover to a body panel of an automobile. For example, Patent Document 1 (Japanese Patent Laid-Open No. 2003-291860) describes a fixture for attaching an under cover to a body panel. A plurality of the fixing tools are attached in advance to a predetermined position of the under cover, and the under cover is carried to a position of the body panel in which the screw stud is erected at the predetermined positions. Since the undercover is pushed in as it is positioned so that the fixing tool is engaged with each of these, the mounting work of the undercover is facilitated. In particular, since the under cover is large, the nut fastening work while balancing is greatly reduced from being a very difficult work.

JP 2003-291860 A JP-A-2005-090681 Japanese Utility Model Publication No. 7-016151

  In addition, when attaching a large cover such as an under cover to the body panel, it is not easy for the operator to check the mounting position, that is, the position of the screw stud, etc., and it becomes a groping state (so-called blind work), and the fixing tool is attached to the stud etc. It is troublesome to position at a predetermined position. The same applies to the fixture of Patent Document 1, and there is room for improvement. The fixture described in Patent Document 2 is a fixture that fixes the floor cover to the body panel. Also in this fixing tool, when the cover becomes large, blind work is performed in a groping state, and it is troublesome to position the fixing tool fixed to the floor cover at a predetermined position of the body panel. The fixture described in Patent Document 3 is a fixture that fixes a sheet-like soundproof material to a body panel. Also in this fixture, when the soundproof material becomes large, blind work is performed in a groping state, and it is troublesome to position the fixture fixed to the sheet-like soundproof material at a predetermined position of the body panel.

  Accordingly, an object of the present invention is to provide a fixture that facilitates the mounting operation even in a blind grind operation.

  In order to achieve such an object, according to the present invention, a mounting member such as a cover is attached to a mounted member such as a panel. The clip and the grommet are used, and the mounting member is sandwiched between the clip and the grommet to be mounted. A fixing tool for attaching a mounting member to a member to be attached by receiving a stud erected on the member in a hollow portion of the clip and the grommet. The grommet has an outer diameter smaller than the mounting hole of the mounting member. And the inner cylinder part formed hollow so that a stud may be received, the flange formed in the end of an inner cylinder part, and one surface of an attachment member, and it extends in the direction opposite to an inner cylinder part from a flange The clip is formed of a polygonal cylindrical portion, and the clip has a flange contacting the other surface of the mounting member, and an outer cylinder having an inner diameter larger than the inner cylindrical portion so as to extend from the flange and receive the inner cylindrical portion. The clip further includes a trumpet-shaped guide that is inclined and widened so that the stud of the mounted member is picked up and guided inward, and the guide has an edge in the axial direction. There is provided a fixture that is formed in a large-diameter annular shape that stands up and has a shape that helps to pick up the tip of the stud by groping and guide it to the inside of the outer cylinder.

  According to the above fixture, the clip has a trumpet-shaped guide that is inclined and widened so that the stud of the attached member is picked up and guided to the inside, and the edge of the guide is axially oriented. Therefore, it is easy to pick up the stud of the member to be attached by groping, and the fitting work is facilitated even in blind grind work.

  In the above fixture, the guide has a base portion connected to the outer cylinder portion formed in a thin portion so that the guide is easily bent in the axial direction of the outer cylinder portion, and the end edge is pressed against the attached member. The entire guide is bent in the axial direction toward the outer cylinder portion, and the distance in the height direction of the guide can be reduced. Further, an elastic first connection locking portion is formed on the outer cylinder portion, and a second connection locking portion is formed on the inner cylinder portion.When the inner cylinder portion is inserted so as to be received in the outer cylinder portion, The first connection locking portion is connected to the second connection locking portion, the clip and the grommet are connected, and the attachment member is sandwiched between the grip and the grommet. The inner cylinder portion has an inner diameter smaller than the outer diameter of the stud, and can be screwed to the stud while rotating the polygonal cylindrical portion around the axis and threading with the stud screw. Therefore, the attachment member can be attached to the member to be attached with high fixing strength. Furthermore, a pair of elastic locking claws that engage with the stud screw received in the outer cylinder part are formed inside the outer cylinder part, and the attachment member sandwiched between the clip and the grommet is attached to the member to be attached. Can be temporarily fixed.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the illustrated embodiment, a cover such as an undercover attached to a vehicle body panel is used as an attachment member, and a vehicle body panel is used as a member to be attached. These are examples, and other attachment members and other attached members may be used. In the case of a cover with a large area such as an under cover, studs are fixed to the body panel at a plurality of predetermined positions by welding or the like. The under cover is fixed at each of these studs and is fixed to the body panel with a sufficient fixing force. The stud of the body panel is a screw stud (also called a stud bolt) that extends in a rod shape and has a screw formed on the outer peripheral surface thereof. 1 to 15 show a fixture 1 according to an embodiment of the present invention. The fixture 1 is attached to a cover which is an attachment member, and the cover to which the fixture 1 is attached is attached. It is fixed to the body panel which is a member via a stud.

  1 to 10, the fixture 1 includes an integrally formed clip 2 made of a hard synthetic resin as shown in FIGS. 1 to 5, and an integral molding made of a hard synthetic resin as shown in FIGS. 6 to 10. The grommets 3 are formed. As shown in FIGS. 11 to 12, the clip 2 and the grommet 3 are attached to the cover 5 as an attachment member so as to be sandwiched from the front surface and the back surface, and the fixture 1 is attached to the cover 5. . As shown in FIGS. 13 to 14, the cover 5 to which the fixing tool 1 is attached is transferred to a place where the body panel 6 that is a member to be attached is located, and the fixing tool 1 of the cover 5 is fixed to the body panel 6. It is temporarily fixed to the stud 7 erected at the position. After the temporary fixing, as shown in FIG. 15, the head of the grommet 3 of the fixture 1 is rotated by a tool, and the cover (attachment member) 5 is fixed to the body panel (attachment member) 6.

  1 to 5, the clip 2 includes a trumpet-shaped guide 9 which is inclined and widened so that the stud 7 of the body panel 6 is picked up and guided to the inside, and the stud 7 receives the stud 7 and the grommet 3. A hollow cylindrical outer cylinder portion 10 having an inner diameter larger than that of the inner cylinder portion and an end of the outer cylinder portion 10 formed at one end of the outer cylinder portion 10 so as to have a larger diameter than that of the cover 5 so as to receive an inner cylinder portion (described later). And a flange 11 that contacts one surface of the cover. The flange 11 is formed with a pair of elastic first connection locking portions 13 extending toward the inside of the outer cylinder portion 10, and clip-side connection means for connecting the clip 2 and the grommet 3 to each other. It has become. The guide 9 is formed in a large-diameter annular shape in which the end edge 14 rises in the axial direction, and assists in picking up the tip end of the stud 7 and guiding it to the inside of the outer cylinder portion 10. A portion of the guide 9 that is connected to the outer cylinder portion 10 is formed as a slope, and the tip of the stud picked up by the end edge 14 is guided to the hollow portion of the outer cylinder portion 10. The root portion where the guide 9 is connected to the outer cylinder portion 10 is formed as a thin portion 15 so that the guide 9 is easily bent in the axial direction of the outer cylinder portion 10. As shown in FIG. 1, the thin portion 15 is formed as a circular groove along the outer periphery of the outer cylinder portion 10. As a result, when the end edge 14 is pressed against the body panel 6 which is a member to be attached, the entire guide 9 bends in the axial direction toward the outer cylinder portion 10, and the height-direction interval due to the presence of the guide 9 is reduced. (See FIG. 15B). In the outer cylinder portion 10, a slope that leads the tip of the stud 7 to the central hole 17 is formed continuously to the guide 9. As shown in FIG. 5, a pair of the cover 5 sandwiched between the clip 2 and the grommet 3 is temporarily fixed to the body panel 6 at the inlet portion of the hole 17 of the outer cylinder portion 10. An elastic locking claw 18 is formed. Furthermore, the inlet portion of the hole 17 of the outer cylinder portion 10 is opposed to the pair of locking claws 18 in a direction orthogonal to the side surface of the stud 7, and the axial center of the hole of the outer cylinder portion 10 and the stud 7. A pair of restricting pieces 19 that align the shaft centers are provided upright. The lower surface of the flange 11 is formed in a flat disk shape that is entirely in contact with the cover.

  6 to 10, the grommet 3 is inserted into the outer cylinder portion 10 of the clip 2 and receives the stud 7 while threading, and a hollow inner cylinder portion 21 having a diameter smaller than the outer diameter of the stud outer cylinder portion 10; A flange 22 that is formed at one end of the inner cylinder portion 21 and contacts the surface of the cover 5 opposite to the clip flange 11, and the inner cylinder portion 21 extends from the flange 22 in a direction opposite to the inner cylinder portion 21. And a cylindrical portion 23 (a hexagonal shape in the illustrated example) extending in the direction. The inner cylinder part 21 has a second connection locking part 25 as a connection means for connecting the grommet 3 to the clip 2 on the outer peripheral side of the position adjacent to the flange 22. The second connection locking portion 25 is formed as a locking shoulder over the entire outer periphery of the inner cylinder portion 21, and when the inner cylinder portion 21 is inserted into the outer cylinder portion 10 of the clip 2, the first connection lock The stop part 13 engages with the second connection locking part 25, and the clip 2 and the grommet 3 are connected to each other. A hole 26 extending in the axial direction is formed in the center of the grommet 3 over the entire inner cylinder portion 21, flange 22, and polygonal cylindrical portion 23. The diameter of the hole 26 is smaller than the outer diameter of the screw stud 7, and when the polygonal cylindrical portion 23 is rotated around the axis with a tool such as a spanner, it is screwed into the stud 7 while being threaded. . As shown in FIGS. 7 and 10, the hole 26 has a plurality of axially extending grooves 27 (four in the illustrated example) in the circumferential direction of the hole 26 so that this threading is not too stiff. It is formed at intervals. The inlet portion 29 of the stud 7 of the inner cylinder portion 21 is formed to be tapered so as to draw the tip of the stud 7 into the hole 26.

  The polygonal cylindrical portion 23 is formed in a hexagonal hollow cylindrical body, and is used to rotate the entire grommet 3 including the inner cylindrical portion 21 around the axis of the stud with a tool such as a spanner. The tool is engaged with the polygonal cylindrical portion 23, and the entire grommet 3 including the inner cylindrical portion 21 is rotated around the axis of the stud, so that the cover 5 is fixed to the body panel 6 or the permanent fixing thereof. It is used for canceling. The flange 22 is formed in a flat disk shape so as to be in contact with the cover 5, and the entire surface is in contact with the cover. The clip flange 11 and the grommet flange 22 sandwich the cover and maintain a constant clamping force.

  With reference to FIG.11 and FIG.12, operation which attaches the fixing tool 1 comprised from the clip 2 and the grommet 3 to the cover 5 which is an attachment member is demonstrated. As shown in FIG. 11, the flange 11 of the clip 2 is positioned in the mounting hole 30 of the cover 5 as indicated by an arrow 31, and the inner cylinder portion 21 of the grommet 3 is positioned in the mounting hole 30 as indicated by an arrow 33. The inner cylinder part 21 of the grommet 3 is inserted into the outer cylinder part 10 of the clip 2 with the cover 5 in between. As a result of this insertion, the second connection locking portion 25 of the inner cylinder portion 21 gets over the first connection locking portion 13 of the clip 2 and is connected to each other, and the clip 2 and the grommet 3 hold the cover 5 with a certain clamping force. Hold it. Therefore, the fixture 1 composed of the clip 2 and the grommet 3 is attached to the cover 5. The illustrated cover 5 has a small area for convenience of explanation, but in the case of an undercover with a large area, a plurality of covers 5 are provided at predetermined positions in accordance with the positions of the plurality of studs 7 erected on the body panel. Mounted. An example in which the fixture 1 is attached to the cover 5 is shown in FIG. To attach the fixture 1 to the cover 5, simply place the clip 2 and the grommet 3 in the mounting hole of the cover 5 and push the inner cylinder part 21 of the grommet 3 into the outer cylinder part 10 of the clip 2 by hand. Operation is enough.

  The cover 5 to which the fixture 1 shown in FIG. 12 is attached is transferred or carried into a place where the body panel 6 on which the stud 7 is erected is located. The operator places the cover 5 to which the fixture 1 is attached at a position where the guide 9 of the clip 2 picks up the tip of the stud 7. In this position, the guide 9 is formed in a large trumpet shape that widens toward the end, and its end edge 14 is formed in a large-diameter ring shape that rises in the axial direction. The guide 9 is aligned with the guide 9. Thereafter, the operator may pick up the tip end of the stud 7 at the edge 14 and guide the stud tip along the slope of the guide 9 to the inside of the outer cylinder portion 10. This makes it easy to guide the tip of the stud 7 to the hole 17 of the outer cylinder portion 10 of the clip 2 even in a narrow place where the operator's eyes are difficult to reach. Since the fixing tool 1 is attached to the cover 5 in advance, the operator can concentrate on the work of positioning the fixing tool of the cover on the stud.

  After the positioning and the work of guiding the stud tip to the hole 17 of the outer cylinder part 10, the cover 5 is pressed against the body panel 6. As a result, the stud 7 is inserted into the hole 17 of the clip 2, further inserted into the inlet 29 of the inner cylinder portion 21, and inserted to the front of the small-diameter hole 26 of the grommet 3. Since the hole 26 is smaller than the outer diameter of the stud, the stud 7 does not enter the hole 26 when pushed by hand. This state is shown in FIG. 13 and FIG. The stud 7 is not inserted into the hole 26 of the grommet 3, but is inserted into the hole 17 of the clip 2, and the screw of the stud 7 is attached to the pair of locking claws 18 provided in the outer cylinder portion 10. Engage. Accordingly, the fixing claw 18 and the cover 5 are temporarily fixed to the body panel 6 by the locking claws 18. This temporary fixing is obtained by engaging the locking claw 18 with the screw of the stud 7, so that the fixing force is low. However, the temporary fixing function is sufficient. For example, even a large size and heavy weight such as an undercover can be temporarily fixed to each stud at a predetermined location by hand without using a tool. It can be done easily.

  Next, as shown in FIG. 15 (A) or (B), a tool tip 34 such as a spanner or a nut turning tool is applied to the cylindrical portion 23 of the grommet 3, and as shown in FIG. 15 (A) or (B). As indicated by an arrow 35, the cylindrical portion 23 is rotated in the tightening direction of the screw of the stud 7. By this rotation, the hole 26 of the grommet 3 is threaded by the screw of the stud 7. By threading, the grommet 3 moves the cover 5 together with the clip 2 toward the body panel 6, fixes the cover 5 to the body panel 6, and completes the main fastening operation. This fixing is strong because the stud 7 is threaded through the hole 26 of the grommet 3 to fix it. As described above, in the case of a large size and heavy cover, first, a large number of fixtures 1 fixed to the cover 5 are temporarily fixed to the corresponding studs 7 by hand, and then the tools are collectively assembled. If it is stopped by this, it becomes an efficient fixing work.

  In FIG. 15, the difference between the diagrams (A) and (B) is the difference in the configuration of the guide of the clip 2. (A) In the figure, the guide 9A is not formed with a thin part at the base part connected to the outer cylinder part 10, and the guide 9 in (B) is as shown in FIGS. Further, a thin portion 15 is formed at the base portion connected to the outer cylinder portion 10 so that the guide 9 is easily bent in the axial direction of the outer cylinder portion 10. (A) When the thin wall portion is not formed as in the guide 9A in the figure, the guide 9 has high rigidity, and the guide 9 does not bend in the fixed state. Only the cover 5 is separated from the body panel 6. On the other hand, in the case of the guide 9 shown in FIG. (B), since the thin portion 15 is formed, if the rotation of the cylindrical portion 23 is continued, the guide 9 bends at the thin portion 15 and (A) The “height A” in the figure disappears, and the height H between the cover 5 and the body panel 6 can be lowered. Further, since the guide 9 is bent and flattened, the guide 9 can be firmly seated on the surface of the body panel 6 and the axial mounting strength can be maintained high.

  Note that the polygonal cylindrical portion 23 can be reversed to release the tightening, and the cover 5 can be easily removed from the body panel 6. In such a case, even when the fixture 1 is reused, as described above, the temporary fixing operation can be performed after temporary fixing, which is convenient.

It is a perspective view of the clip of the fixture concerning one embodiment of the present invention. It is a front view of the clip of FIG. It is a bottom view of the clip of FIG. It is the sectional view on the AA line of the clip of FIG. FIG. 4 is a cross-sectional view of the clip of FIG. 3 taken along the line BB. It is a perspective view of a grommet of a fixture concerning one embodiment of the present invention. It is a top view of the grommet of FIG. It is a front view of the grommet of FIG. It is a bottom view of the grommet of FIG. It is CC sectional view of the grommet of FIG. It is a perspective view which shows the state before attaching the fixing tool which concerns on one Embodiment of this invention which consists of a clip of FIG. 1 and the grommet of FIG. 6 to the cover which is an attachment member. It is a figure which shows a mode before pinching a cover with the fixing tool of FIG. 11, and attaching to a vehicle body panel with a stud. It is sectional drawing which shows a mode after temporarily fixing the cover with a fixing tool to the body panel in which the stud was erected. FIG. 14 is a perspective view showing a state after a cover with a fixture is temporarily fixed to a body panel on which studs are erected similarly to FIG. 13. It is sectional drawing which shows a mode that the cover with a fixing tool was fixed to the body panel in which the stud was erected, and (A) is a fixed stop when the thin part is not formed in the base part of the guide of the clip. The state is shown, (B) has shown the final stop state in case the thin part is formed in the base part of the guide of a clip.

Explanation of symbols

1 Fixing device 2 Clip 3 Grommet 5 Cover (mounting member)
6 Body panel (attachment member)
7 Stud 9 Guide 10 Outer cylinder part 11 Clip flange 13 First connection locking part 14 Guide edge 15 Thin part 17 Hole 18 of outer cylinder part (for temporary fixing) Locking claw 19 Restriction piece 21 Inner cylinder part 22 Grommet flange 23 Polygonal cylindrical portion 25 Second connection locking portion 26 Grommet hole 27 Groove 29 Inner cylindrical portion inlet 30 Cover mounting hole 34 Tool tip

Claims (5)

In order to attach an attachment member such as a cover to a member to be attached such as a panel, the clip is composed of a clip and a grommet. The attachment member is sandwiched between the clip and the grommet, and A fixture that attaches the attachment member to the attached member by being received in a hollow portion of a clip and a grommet,
The grommet has an outer cylinder having a smaller outer diameter than the mounting hole of the mounting member and is formed to be hollow so as to receive the stud, and is formed at one end of the inner cylindrical portion. And a polygonal cylindrical portion extending from the flange in a direction opposite to the inner cylindrical portion,
The clip includes a flange that contacts the other surface of the mounting member, and an outer cylinder portion that extends from the flange and has an inner diameter larger than the inner cylinder portion so as to receive the inner cylinder portion,
The clip further includes a trumpet-shaped guide that is inclined and widened so that the stud of the attached member is picked up and guided to the inside, and the edge of the guide extends in the axial direction. Standing up, it is formed in a large-diameter annular shape, and is a shape that helps to pick up the tip of the stud by groping and guide it to the inside of the outer cylinder part,
A fixture characterized by that.   2. The fixture according to claim 1, wherein the guide has a base portion connected to the outer cylinder portion formed in a thin portion so that the guide is easily bent in the axial direction of the outer cylinder portion. When the edge is pressed against the mounted member, the entire guide is bent in the axial direction toward the outer tube portion, and the height interval of the guide is reduced.   3. The fixing device according to claim 1, wherein the outer tube portion is formed with an elastic first connection locking portion, and the inner tube portion is formed with a second connection locking portion, When the tube portion is inserted so as to be received in the outer tube portion, the first connection locking portion is connected to the second connection locking portion, the clip and the grommet are connected, and the grip and the grommet are interposed. The fixture, wherein the attachment member is sandwiched.   The fixing tool according to any one of claims 1 to 3, wherein an inner diameter of the inner cylindrical portion is formed to be an inner diameter smaller than an outer diameter of the stud, and the polygonal cylindrical portion is arranged around an axis. A fixing device characterized by being rotated and screwed to the stud while being threaded by the screw of the stud.   5. The fixing device according to claim 1, wherein a pair of elastic locking claws that engage with a screw of the stud received in the outer cylinder part are formed inside the outer cylinder part. A fixing tool, wherein the mounting member sandwiched between the clip and the grommet is temporarily fixed to the mounted member.

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