JP2017210982A - Clip fixing structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a clip fixing structure which has high removal prevention ability and backlash prevention ability.SOLUTION: In a clip fixing structure, a clip 1 for attaching a component is inserted into an insertion hole of an attachment part 10 to be fixed. The clip 1 includes: a support pillar 4 having an engagement pawl 5; and a restriction pillar 6 extending in a direction coaxial with the support pillar 4. The attachment part 10 has a main insertion hole 13, into which the support pillar 4 and the engagement pawl 5 are inserted, and an auxiliary insertion hole 14, into which the restriction pillar 6 is inserted, and is provided with a guide part 15 of the restriction pillar 6 which extends from the auxiliary insertion hole 14 in an insertion direction.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a clip fixing structure for inserting and fixing a clip into a mounting portion for mounting a component such as a wiring connector.

  Conventionally, for example, a clip is often used to fix a connector, which is an electromagnetic component of an automobile, at a predetermined position of the automobile. Specifically, in a state where the connector is attached to the clip, the clip is fixed to an attachment portion fixed to the automobile side. The clip is equipped with a main body for mounting parts such as connectors, and a support provided on the main body. The support post is provided with a locking claw, and the support post is inserted into the insertion hole provided in the mounting portion together with the locking claw. Then, the locking claw is locked to the edge of the insertion hole, so that the clip with the component mounted is fixed to the mounting portion.

  Patent Document 1 discloses an example of a fixing structure that fixes a clip to a mounting portion. The support column of the clip in Patent Document 1 is formed of hard plastic, and an engaging leg (locking claw) having a spring property and a restricting member (control column) having rigidity are integrally formed on the support column. The clip is fixed to the peripheral edge portion of the insertion hole of the attachment portion by the engaging leg, and a mistake in the insertion direction of the column is restricted or prevented by the restriction member. The mounting portion is formed of a flat plate, and an insertion hole for inserting the support of the clip is formed on the flat plate. A clip similar to the clip fixing structure disclosed in Patent Document 1 is also disclosed in Patent Document 2.

Japanese Patent Laying-Open No. 2015-55302 JP 2013-64492 A

In the clip fixing structure disclosed in Patent Documents 1 and 2, etc., the clip after being fixed to the mounting portion is strongly subjected to rotational stress in the axial direction of the column from the outside and lateral stress from the direction perpendicular to the axis. In this case, the clip may come out of the mounting portion and come off. In other words, since the clip's locking claw is only linearly hooked into the insertion hole formed in a relatively thin flat plate in the mounting portion, the resistance to such external stress is relatively low. . Therefore, it cannot be said that the omission prevention property is sufficient. A part of the restriction column in Patent Document 1 is also hooked linearly around the periphery of the insertion hole. However, the effect of improving the removal prevention due to this is hardly expected as in the case of the locking claw. Furthermore, when external stress is applied to the parts attached to the clip, the function of preventing rattling that occurs at the clip portion is not so sufficient.
It is an object of the present invention to provide a clip fixing structure that solves the above-described problems and has a high anti-separation property and anti-rattle property.

A first aspect of the present invention is a clip fixing structure in which a clip for mounting a component is inserted into an insertion hole of an attachment portion and fixed.
The clip has a support post having a locking claw, and a regulation column extending in the same direction as the support column, and the mounting portion has a main insertion hole for inserting the support column and the locking claw, and an auxiliary insertion hole for inserting the regulation column, The guide part of the control pillar extended in an insertion direction from an auxiliary | assistant insertion hole is provided (Claim 1).

  According to a second aspect of the present invention, in the first aspect, the restriction column has a side surface extending linearly in the insertion direction, and the auxiliary insertion hole has an inner surface through which the restriction column can pass. The guide portion has a guide surface that guides the side surface of the restriction column to be inserted (claim 2).

  According to a third aspect of the present invention, in the second aspect, the restriction column and the auxiliary insertion hole are formed in a square shape in a direction perpendicular to the insertion direction, and the guide portion is a pair of the restriction columns. It has a pair of guide surfaces parallel to each other for guiding both side surfaces thereof.

  According to a fourth aspect of the present invention, in the third aspect, the distance between the pair of guide surfaces is smaller than the distance between the pair of inner surfaces of the auxiliary insertion holes parallel to the guide surfaces. Item 4).

  According to a fifth invention of the present invention, in any one of the first to fourth inventions, the restricting column serves as both a function of restricting the insertion direction of the column in the clip and an improvement of the clip removal prevention property. It is characterized (claim 5).

  As described above, according to the first aspect of the present invention, the clip includes a support column having a locking claw and a restriction column extending coaxially with the support column, and the mounting portion includes a main insertion hole and a restriction column for inserting the support column and the locking claw. It has an auxiliary insertion hole into which a guide post of a restriction column extending from the auxiliary insertion hole in the insertion direction is provided. If comprised in this way, the whole clip will be mechanically reinforced by the control pillar hold | maintained by the guide part, and the clip prevention property and rattling prevention property with respect to the external stress of the said rotation direction or a horizontal direction will improve.

  As described above, in the second invention, the restriction column has a side surface extending linearly in the insertion direction, the auxiliary insertion hole has an inner surface through which the restriction column can pass, and the guide portion is It has the guide surface which guides the said side surface of the control pillar inserted. If comprised in this way, while the insertion property of a clip will improve with a simple structure, the fall prevention property from a mounting part and rattle prevention property can be improved.

  As described above, in the third aspect of the present invention, the restriction column and the auxiliary insertion hole are formed in a square shape in a direction orthogonal to the insertion direction, and the guide portion guides a pair of both side surfaces of the restriction column. It has a pair of guide surfaces parallel to each other. If comprised in this way, a structure will become still simpler and the fall prevention property from the attachment part of a clip and rattle prevention property will improve further.

  As described above, the fourth invention is characterized in that the distance between the pair of guide surfaces is smaller than the distance between the pair of inner surfaces of the auxiliary insertion holes parallel to the guide surfaces. If comprised in this way, a certain amount of clearance will be given between the both side surfaces of a control pillar, and a pair of inner surface of the auxiliary insertion hole which opposes them, and conversely, both side surfaces of a control pillar and a pair of guide surfaces which face them It is possible to set the space close to each other. With this setting, when inserting the restriction pillar, the restriction pillar can be easily inserted into the auxiliary insertion hole with a gap, and the restriction pillar after insertion is prevented from coming off with a high reinforcing effect due to close contact with the guide surface. The effect of improving the property and preventing rattling is also maintained.

  The fifth invention is characterized in that, as described above, the restriction column has both functions of restricting the insertion direction of the column in the clip and improving the clip prevention property. In other words, the above-described conventional restricting column is only for restricting the direction of insertion of the column in the clip. However, in the present invention, the clip can be prevented from being prevented from being removed even though the structure is relatively simple. It is extremely advantageous in terms of cost.

The perspective view which shows an example of the clip and attachment part which comprise the clip fixing structure of this invention. AA arrow sectional drawing (A) and BB arrow sectional drawing (B) in FIG. The bottom view of the state which inserted the connector 2 of the clip 1 in FIG. IV-IV arrow sectional drawing in FIG. The expanded sectional view of the V section in FIG. The perspective view which shows the state in which the attaching part which inserted the clip 1 in FIG. 1 is being fixed to the installation object. 1. It is the AA arrow sectional drawing (A) in FIG. 1, and BB arrow sectional drawing (B), Comprising: It is another Example of this invention.

  Next, an embodiment of a clip fixing structure of the present invention will be described based on the drawings. FIG. 1 is a perspective view showing an example of a clip and an attachment portion constituting the clip fixing structure of the present invention, FIG. 2 is a cross-sectional view taken along arrows AA and BB in FIG. 1, and FIG. 1 is a bottom view of a state in which the clip in FIG. 1 is inserted into the mounting portion, FIG. 4 is a sectional view taken along the line IV-IV in FIG. 3, and FIG. 5 is an enlarged sectional view of a V portion in FIG.

  The clip 1 in this embodiment is equipped with a wiring connector 2 as an example of an electrical component. However, the component example may be an electrical component other than the connector 2 or a mechanical component other than an electrical component. .

  A clip 1 made by integrally molding a plastic material has a main body 3 to which a connector 2 is attached, a support 4 extending vertically downward from the main body 3 in FIG. 1, and a pair of side surfaces of the support 4 facing each other. Each of the formed locking claws 5 having elasticity, the regulation column 6 integrally formed on the other side surface of the column 4, and the concave disk shape having elasticity provided between the main body 3 and the column 4. A stabilizer 7 is provided. The connector 2 has a plug portion 8 and a cable hole 9a, and four cables 9 connected to the plug portion 8 extend from the cable hole 9a to the outside.

  A mounting portion 10 made by integrally molding a plastic material is formed in a pedestal shape on the shroud, and has a flat insertion surface 11 and a side surface 12 extending downward from the peripheral edge of FIG. 11 is formed with a main insertion hole 13 having a square cross section perpendicular to the insertion direction (extending direction of the side surface 12) and an auxiliary insertion hole 14 having a square cross section orthogonal to the insertion direction. . In the present embodiment, the main insertion hole 13 and the auxiliary insertion hole 14 are partially communicated with each other in the direction orthogonal to the insertion direction, but the column 4 and the regulation column 6 of the clip 1 are independent from each other. When extending from the part 3, the main insertion hole 13 and the auxiliary insertion hole 14 may be separated and independent from each other accordingly. Note that the mounting portion 10 may have a flat plate shape. In this case, the flat plate is fixed to a fixed object such as an automobile via another leg member.

  As shown in FIG. 2, the attachment portion 10 is provided with a guide portion 15 that extends from the auxiliary insertion hole 14 in the insertion direction. The guide portion 15 is a cylindrical body in which a cross section perpendicular to the insertion direction is formed in a square shape in accordance with the restriction pillar 6 having a square cross section. As shown in FIG. 2A, the guide portion 15 forms a pair of guide surfaces 15a facing each other on the inner surface thereof, and each guide surface 15a is a pair of side surfaces 6a facing each other of the regulation column 6 (see FIG. 3). Guide in the insertion direction while touching.

  In the present embodiment, the cross-sectional shape of the restriction column 6 is a square, whereby a pair of parallel side surfaces 6 a extending linearly in the insertion direction is formed on the restriction column 6. A straight inner surface 14a is formed in the auxiliary insertion hole 14 in a passing direction through which the regulation column 6 can pass, and a linear shape in the insertion direction for guiding the linear side surface 6a of the regulation column 6 inserted in the guide portion 15. A pair of parallel guide surfaces 15a extending to each other is formed. However, the cross-sectional shape of the restriction column 6 may be a shape other than a square. For example, even if the cross section is elliptical or square, the straight side can be formed. In this case, the cross section orthogonal to the insertion direction of the auxiliary insertion hole 14 and the guide portion 15 is also formed in an oval shape or a square shape in accordance with the restriction column 6.

  As shown in FIGS. 2A and 5, in this embodiment, the distance between the pair of guide surfaces 15 a in the mounting portion 10 is substantially the same as the distance between the pair of inner surfaces 14 a of the auxiliary insertion holes 14 parallel to them. Is formed. These intervals are set according to the interval between the pair of side surfaces 6a of the restriction column 6 so that the restriction column 6 can be inserted smoothly. For this reason, the restriction column 6 is stably held by both the inner surface 14a and the guide surface 15a of the auxiliary insertion hole 14, and thus the above-described prevention of slippage is particularly excellent.

  On the other hand, as another embodiment, as shown in FIG. 7, the distance between the pair of guide surfaces 15 a in the guide portion 15 can be made smaller than the distance between the pair of inner surfaces 14 a in the auxiliary insertion holes 14 parallel to them. In that case, the interval between the pair of guide surfaces 15a is set to a small value that is sufficiently held in a state where the restriction columns 6 are in contact with each other, and the interval between the pair of inner surfaces 14a in the auxiliary insertion hole 14 is made smoother. Set it to a large value that can be plugged in. In such a setting, the restriction column 6 is held only by the pair of guide surfaces 15a, but there is another advantage that the insertion of the restriction column 6 becomes easier.

  Next, a method for fixing the clip 1 shown in FIG. 1 to the mounting portion 10 will be described. First, the clip 1 with the connector 2 mounted is brought close to the insertion surface 11 of the mounting portion 10 with its column 4 side facing downward, and then the tip of the column 4 is moved to the main insertion hole 13 of the mounting portion 10. And the tip of the restriction column 6 is inserted into the auxiliary insertion hole 14. The pair of locking claws 5 formed on the side surface of the support column 4 inserted into the main insertion hole 13 is deformed in the center direction of the support column 4 due to its elasticity and reduces the distance between the main insertion hole 13. After passing, it is returned to the original interval by elasticity. When returned, the claw portion formed in the locking claw 5 is locked to the inner edge portion of the main insertion hole 13 of the mounting portion 10.

  On the other hand, the regulation pillar 6 inserted into the auxiliary insertion hole 14 is inserted while being guided while the pair of side surfaces 6 a are in contact with the pair of opposing guide surfaces 15 a of the guide portion 15. When the insertion of the column 4 and the regulation column 6 is completed, both surfaces of the insertion surface 13 of the fixing portion 10 are in a stable state sandwiched between the locking claw 5 of the clip 1 and the stabilizer 7. Each part in this state is shown in FIG. 3, FIG. 4 and FIG.

  FIG. 6 is a perspective view showing a state in which the mounting portion 10 into which the clip 1 shown in FIG. 1 is inserted is fixed to a substrate 20 such as an automobile to be installed. The external stress on the fixing structure is generated between, for example, a portion where the cable 9 is fixed and a portion where the mounting portion 10 is fixed. However, the fixing structure of the present invention can hold the external stress sufficiently. Since the force is exerted, it is possible to reliably prevent the clip 1 from coming off or rattling. An end portion of a connection plug for connection (not shown) is inserted into the connector 2.

  The clip fixing structure of the present invention can be used as a clip fixing structure in a field in which prevention of disconnection and rattling is strongly required.

DESCRIPTION OF SYMBOLS 1 Clip 2 Connector 3 Main-body part 4 Support | pillar 5 Locking claw 6 Restriction pillar 6a Side surface

7 Stabilizer 8 Plug part 9 Cable 9a Cable hole 10 Mounting part 11 Insertion surface 12 Side surface

13 Main insertion hole 14 Auxiliary insertion hole 14a Inner surface 15 Guide part 15a Guide surface 20 Substrate

Claims (5)

In the clip fixing structure for inserting and fixing the clip (1) for mounting the component into the insertion hole of the mounting portion (10),
The clip (1) includes a column (4) having a locking claw (5) and a regulation column (6) extending coaxially with the column (4), and the mounting portion (10) is engaged with the column (4). A restriction column (13) having a main insertion hole (13) for inserting the pawl (5) and an auxiliary insertion hole (14) for inserting the restriction column (6) and extending from the auxiliary insertion hole (14) in the insertion direction. 6. A clip fixing structure characterized in that the guide portion (15) of 6) is provided.   The restriction column (6) has a side surface (6a) extending linearly in the insertion direction, and the auxiliary insertion hole (14) has an inner surface (14a) through which the restriction column (6) can pass. The clip fixing structure according to claim 1, wherein the guide portion (15) has a guide surface (15a) for guiding the side surface (6a) of the restriction column (6) to be inserted.   The regulation column (6) and the auxiliary insertion hole (14) are formed in a square shape in a cross section perpendicular to the insertion direction, and the guide portion (15) is a pair of both side surfaces of the regulation column (6) ( The clip fixing structure according to claim 2, characterized in that it has a pair of guide surfaces (15a) parallel to each other for guiding 6a).   The clip fixing according to claim 3, wherein a distance between the pair of guide surfaces (15a) is smaller than a distance between a pair of inner surfaces (14a) of the auxiliary insertion hole (14) parallel to the guide surfaces (15a). Construction.   The said control pillar (6) serves as both the function of insertion direction control of the support | pillar (4) in a clip (1), and the improvement prevention property of a clip (1), The Claim 1 thru | or 3 characterized by the above-mentioned. The clip fixing structure according to any one of the above.

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