JP2019161835A - Grommet inner, grommet, and fixed construction of grommet - Google Patents

Abstract

To obtain an excellent fixed state for a panel and to maintain the excellent fixed state even in an environment where vibration occurs.SOLUTION: In a fixed construction of a grommet using a grommet 11 which involves a grommet inner 51 in one end portion 11a of a fixed side for a panel 12, the grommet inner 51 has a panel locking portion 71 penetrating into an opening portion 21 of the panel 12, and a patch portion 72 locked to one part of the panel locking portion 71. In the panel locking portion 71, a master locking claw 73 inserted into the opening portion 21 from a front face 12a side and locked to an edge of the opening portion 21, and a subordinate locking claw 74 inserted into the opening portion 21 from the front face 12a side and locking the patch portion 72 in a rear face 12b side are formed. In the patch portion 72, a press portion 75 locking the subordinate locking claw 74 in a locking state for the panel 12 of the master locking claw 73 and sandwiching the panel 12 from the rear face 12b side is formed, and positive sandwiching is performed in addition to locking.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a grommet that protects a wire harness, and more particularly to a grommet that can be satisfactorily fixed to a panel.

  The grommet includes a grommet inner at an end portion on the fixed side with respect to the panel. For example, as disclosed in Patent Document 1 below, the grommet inner has an engaging portion that is fitted into the opening of the panel. Yes. A locking claw that is elastically displaced is formed on the outer peripheral surface of the fitting portion. When the locking claw is fitted into the opening, the locking claw is locked to the panel, and the water stop portion of the grommet is pressed against the panel. To do.

  However, although the locking claw is urged outward while being fitted in the opening, a load is applied to the grommet in a specific direction such as a downward direction in a fixed posture. It is conceivable that a latching claw that constantly applies a load on the side opposite to the urging direction cannot exert the urging force and causes the grommet to rattle or come off.

JP 2017-118742 A

  Therefore, the main object of the present invention is to obtain a good fixed state and maintain it.

  The means for this is a grommet inner included in the end of the grommet on the fixed side with respect to the panel, and is locked to a panel locking portion penetrating the opening of the panel and a part of the panel locking portion. And a main locking claw inserted into the opening from the surface side and locked to the edge of the opening, and inserted into the opening from the surface side. And a latching claw for latching the backing plate portion is formed on the back surface side, and the backing plate portion is engaged with the secondary locking claw when the primary locking claw is locked to the panel. It is the grommet inner in which the pressing part which pinches | interposes the said panel from the back surface side was formed.

  In this configuration, the main locking claw of the panel locking portion is locked to the opening of the panel so that the end of the grommet is pressed against the surface of the panel, and the slave locking of the panel locking portion is further performed. The pressing part of the backing plate part locked to the claw presses the back side of the panel. As a result, the panel is sandwiched between the grommets in the thickness direction. In other words, the panel is pressed from both sides in the thickness direction, and the positional relationship with the grommet is strongly regulated. As a result, the load applied to the specific main locking claw is suppressed, and the occurrence of looseness and detachment are prevented. In addition, the shape tolerance including the opening of the panel is the maximum, and the grommet inner to the opening is offset, and the main locking claw is accidentally removed, or the wire harness in the grommet is pulled and the tension is increased. Even when it is stuck, it can prevent the grommet from falling off the panel.

  As an aspect of the present invention, the main locking claws are formed in pairs at intervals, and the claws are directed outward in the pairing direction. It is good also as a grommet inner in which the restriction | limiting lock | rock part which penetrates between the said main latching claws in the state which the nail | claw latched to the said opening part, and prevents the said nail | claw's disengagement was formed.

  In this configuration, in a state where the main locking claw is locked to the opening, the restriction lock portion of the backing plate portion fits between the main locking claws and is displaced in the direction in which the locking of the main locking claw is released, that is, Prevent internal falling. This prevents the main locking claw from falling off the opening, that is, the grommet from falling off the panel.

  As an aspect of the present invention, the main locking claws are formed in pairs at intervals, and the claws are directed outward in the pairing direction. It is good also as a grommet inner formed by making a nail | claw point in the direction orthogonal to the direction which a pawl makes a pair.

  In this configuration, since the secondary locking claws are formed with the claws directed in a direction orthogonal to the direction of the pair of the primary locking claws with the claws facing outward, the locking state is adversely affected between each other. You can avoid that. In addition, since the directionality of the main locking claw and the secondary locking claw is different, the form of the panel locking portion having the primary locking claw and the secondary locking claw can be summarized in a compact manner.

  As an aspect of the present invention, the backing plate portion may be a grommet inner formed integrally with a hinge.

  In this configuration, when the contact plate portion is locked to the secondary locking claw, the contact plate portion may be rotated using the hinge as a fulcrum. For this reason, unlike the case where the contact plate part of another member is latched, it can be highly convenient and workable. Moreover, even if the contact plate portion may come off, the contact plate portion can be prevented from being dissipated.

  As an aspect of the present invention, the main locking claws are formed in pairs at intervals, and the claws are directed outward in the pairing direction, and the contact plate portion is the main locking claws. Are formed integrally through a hinge extending in a pairing direction, and the subjaw pawls are paired in a direction perpendicular to the opposing direction of the main pawls and the nails are directed outward. In addition, a grommet inner that is formed larger than a claw of a slave claw that is closer to a slave claw that is farther from the hinge than the pair of slave claws.

  In this configuration, the secondary locking claw that locks the contact plate portion integrally formed via the hinge extending in the direction in which the main locking claw makes a pair is perpendicular to the direction in which the main locking claw makes a pair. It is formed as a pair, and the claw of the slave claw farther from the hinge formed larger than the claw of the slave claw closest to the hinge among the slave claws is strong according to the principle of the lever To lock the contact plate. As a result, a better fixed state is obtained and a good fixed state is maintained.

  As a mode of this invention, it is good also as a grommet inner where the elastic piece which contacts the above-mentioned panel with energizing force in the above-mentioned press part was formed.

  In this configuration, the elastic piece comes into contact with the panel in a state in which it exerts its own urging force with the pressing portion pressing the back side of the panel. As a result, rattling can be prevented while the stopper is exerting a stopper function.

  In the case where an elastic piece is provided, a notch portion is formed in the pressing portion, and the elastic piece may be a grommet inner formed in the notch portion.

  In this configuration, for example, an elastic piece formed inside a notch portion formed in an appropriate manner, such as the center portion of the holding portion, presses the panel in a manner that fits inside the holding portion. As a result, an increase in size in the vicinity of the pressing portion can be prevented, and a stable pressing state can be realized depending on the form of the notch portion and the elastic piece.

  As an aspect of this invention, the pressing portion is a grommet inner formed at a position aligned with the main locking claw in a direction orthogonal to the direction in which the main locking claw opposes in the locked state with respect to the secondary locking claw. Also good.

  In this configuration, the pressing portion assists in maintaining the locked state of the main locking claw at a position aligned with the main locking claw. Thereby, the effect | action of a holding | suppressing part can be exhibited effectively.

  Another means is a grommet provided with the grommet inner.

  Another means is a grommet fixing structure in which an end portion of the grommet containing the grommet inner is fixed to the panel.

  The aspect of the grommet fixing structure may be a grommet fixing structure in which a bulging portion that fits into the opening is formed in a portion corresponding to the opening in the grommet.

  In this configuration, the bulging portion is positioned so as to reduce the gap in the opening and close the opening. This suppresses intrusion of foreign matter. Further, when the grommet is pulled, it is difficult to bend and maintains a fixed state with respect to the panel.

  In the case where the bulging portion is formed, it is preferable that the grommet fixing structure has a protruding portion that protrudes in the bulging direction of the bulging portion at a portion corresponding to the bulging portion in the grommet inner.

  In this configuration, the protruding portion supports the bulging portion. As a result, the grommet inner can be prevented from being displaced or detached by being caught on the bulging portion, and functions as a reinforcement of the bulging portion to ensure the action of the bulging portion described above.

  The aspect of the grommet fixing structure may be a grommet fixing structure in which an anchor that is inserted into the panel and fixed to be removed is formed in the grommet inner in addition to the panel locking portion and the contact plate portion. .

  In this structure, the fixed state with respect to a panel is obtained by cooperation with a panel latching | locking part and a backing plate part, and an anchor. As a result, it is possible to avoid the complication of the shape of the grommet inner and realize fixing with good fixing workability.

  In this case, the anchor is formed at a portion corresponding to the inner portion of the panel, and the panel locking portion and the contact plate portion are closer to the end side than the inner portion and the inner portion of the panel. A grommet fixing structure formed on the end side of the formed stepped portion is preferable.

  In this configuration, the anchor is inserted and fixed in the inner part away from the end of the panel, and the panel locking part and the backing plate part are inserted into the edge of the panel and locked, and then the backing plate is locked and fixed. Is done. As a result, it is possible to realize the ease of fixing utilizing the difference in the fixing mode, and the anchoring state is assisted by the anchor, the panel locking portion, and the backing plate portion, and a good fixing state is maintained.

  According to the present invention, it is possible to obtain a good fixed state of the grommet with respect to the panel and maintain this fixed state.

The perspective view of a grommet fixing structure. The perspective view of a panel and a grommet. The disassembled perspective view of a grommet. The partially broken side view which represented the one end part of the grommet in the cross section. The expansion perspective view of an anchor. The expansion perspective view of a panel latching | locking part. The panel latching | locking part front view. Sectional drawing explaining the latching aspect of a panel latching | locking part. Sectional drawing of the latching state of a panel latching | locking part. Sectional drawing which shows the latching process of a backing plate part. Sectional drawing of the panel latching | locking part in a fixed state. The front view of the panel latching | locking part in a fixed state. AA sectional drawing of FIG.

  An embodiment for carrying out the present invention will be described below with reference to the drawings.

  FIG. 1 is a perspective view of a grommet fixing structure 13 in which the grommet 11 is fixed to the panel 12. The grommet fixing structure 13 is preferably used for a door portion that opens and closes, such as a front door of a vehicle, for example, and fixes the grommet 11 between a body-side body panel and a door-side door panel. Thus, the wire harness WH routed across the body and the door is protected.

  2 is a perspective view of the grommet 11 and a panel 12 (a part of the door panel) to which the one end 11a of the grommet 11 is fixed, FIG. 3 is an exploded perspective view of the grommet 11, and FIG. 4 is one end 11a of the grommet 11. FIG. In FIGS. 1 to 3 and the like, the structure is drawn in an easy-to-explain direction, and the illustrated posture is different from the posture when incorporated in a vehicle. In the grommet 11 of this example, the posture when the grommet 11 is incorporated in the vehicle is a posture in which both opening directions of the grommet 11 face sideways.

  Further, in this example, only the structure of the one end portion 11a fixed to the door panel in the grommet 11 will be described, and the description of the structure of the other end portion 11b fixed to the body panel will be omitted.

  First, the panel 12 will be described. The panel 12 has an opening 21 at a portion where the grommet 11 is fixed. As shown in FIG. 2, the opening portion 21 is cut from the end portion 22 into the inner portion 23, and the front end portion in the cutting direction is formed in a circular shape in front view.

  Further, the part having the opening 21 in the panel 12 and the periphery thereof are not all flat, and the part of the panel 12 in the space is moved from the end 22 to the inner part 23 having the front end in the cutting direction of the opening 21. A curved stepped portion 24 that changes the position, that is, the positions of the front surface 12a and the back surface 12b of the panel 12 in the back surface direction is formed. The step portion 24 has a shape that shifts the inner portion 23 of the panel 12 to the back surface 12b side in substantially the same direction as the direction in which the wire harness WH is passed.

  Here, the “front surface 12a” is a surface on the side where the grommet 11 is fixed, and the “back surface 12b” is a surface opposite to the surface on which the grommet 11 is fixed. For this reason, in FIG. 1, FIG. 2, the back surface 12b of the panel 12 appears on the near side.

  In the end portion 22 of the opening portion 21, the width of the opening portion 21 is narrowed over an appropriate range corresponding to the size of the one end portion 11 a of the grommet 11 and the depth of the opening portion 21. An edge piece 25 is formed in a portion where the width of the opening 21 is narrowed, and the thickness of the edge piece 25 is set to be thinner than other portions. Further, an open space 26 is formed between the edge pieces 25 at the end of the opening 21, and the end of the panel 12 is opened.

  Further, among the portions of the panel 12 to which the grommet 11 is fixed, the grommet 11 is used for fixing the grommet 11 on both sides of the inner portion 23 inside the stepped portion 24 and sandwiching the leading end portion in the cutting direction of the opening 21. An insertion hole 27 is formed.

  In addition, such a form of the panel 12 is an example, and the form of the panel 12 and the opening 21 is appropriately set. For example, the edge piece 25 does not have to be thin, and the opening 21 may be a hole with no open space 26 and a closed periphery.

  Next, the grommet 11 will be described. As shown in FIG. 3, the grommet 11 includes a grommet main body 31, a grommet inner 51, and an inner cover 52.

  The grommet body 31 has a substantially cylindrical shape that bends according to the opening / closing of the door panel, and is formed of rubber or the like having flexibility and flexibility. A bellows portion 32 is formed at an intermediate portion in the longitudinal direction of the grommet body 31, and one end 31a and the other end 31b are ends fixed to the body panel or the door panel, and a grommet inner 51 is included. Since only the configuration of the one end portion 11a of the grommet 11 will be described as described above, only the grommet inner 51 included in the one end portion 31a is illustrated in FIG.

  In order to enclose the grommet inner 51, the one end 31a and the other end 31b of the grommet main body 31 protrude to the outer peripheral side like a ridge. Of the both ends of the grommet main body 31, the shape of the one end 31a fixed to the panel constituting the door panel is formed in a substantially isosceles triangle shape having a large angle when viewed from the front. It has the joint surface part 33 which contact | abuts the surface shape except a part of edge part 22 in the circumference | surroundings of the part 21 in an outer periphery. The joint surface portion 33 surrounds the entire circumference of the through path 34 through which the wire harness WH passes, and has a curved step portion 35 corresponding to the step portion 24 of the panel 12.

  Further, a water stop lip 36 is formed on the outer peripheral edge of the surface of the joint surface portion 33 that contacts the panel 12. The joint surface portion 33 having the water stop lip 36 has a U-shaped cross section, and the fitting edge 53 of the outer peripheral edge of the grommet inner 51 can be fitted into the inner peripheral side of the joint surface portion 33. It should be noted that a rib 37 holding a U-shaped cross section is provided at an appropriate location inside the joint surface portion 33.

  A bulging portion 38 that fits into the opening 21 is formed at a portion of the joint surface 33 of the grommet body 31 that crosses the opening 21 of the panel 12. The bulging part 38 is formed in the inner peripheral side of the water stop lip 36, and the front view shape is a rectangle long horizontally. The bulging portion 38 does not necessarily have a size that covers the entire width of the opening 21, and the protruding height of the bulging portion 38 is appropriately set.

  The grommet inner 51 is made of a hard synthetic resin and has a curved stepped portion 54 corresponding to the stepped portions 24 and 35 of the panel 12 and the grommet main body 31 in a front view shape corresponding to the one end portion 31 a of the grommet main body 31. It is formed in a frame shape. A fitting edge portion 53 that fits to the joint surface portion 33 of the grommet main body 31 is formed in the frame shape, that is, the outer peripheral edge, and a hole portion 55 through which the wire harness WH passes is provided at a portion corresponding to the through path 34 of the grommet main body 31 in the center portion. Is formed.

  A tongue piece 56 that regulates the inserted and held wire harness WH is formed at a part of the edge of the hole 55, in this example, at the most distal end side portion of the opening 21 of the panel 12.

  A fastening portion 57 is formed at the base of the tongue piece 56 in the grommet inner 51 to protect the wire harness WH inserted and held and to fix the inner cover 52 that guides the wire harness WH to the tongue piece 56 side. Yes. The fastening portion 57 has an engaging claw 57a that can be elastically displaced. In FIG. 3, reference numeral 58 formed on both sides of the inner cover 52 is an engagement ring that engages with the engagement claw 57a.

  Further, both sides on the lower end side of the grommet inner 51 having a substantially isosceles triangle shape with a large angle when viewed from the front, that is, both the left and right sides of the tongue piece 56, inside the joint surface portion 33 of the grommet body 31. An anchor 61 that is inserted into the panel 12 and is secured to be removed is formed at the corresponding portion.

  As shown in FIG. 3, the anchor 61 is formed in a rod shape that can be inserted into the insertion hole 27 (see FIG. 1) formed in the panel 12, and the protruding direction of the anchor 61 is the step portion 24 in the panel 12. Are set in substantially the same direction as the step direction.

  A pair of retaining claws 62 are formed from the tip of the anchor 61 to the vicinity of the base and projecting to the outer peripheral side. As shown in FIG. 5, the retaining pawl 62 includes a tip end portion 62 a that is positioned inside the insertion hole 27 and projects outward in the radial direction when locked to the insertion hole 27, and a pawl portion that catches on the back surface corner of the insertion hole 27. 62b.

  The formation positions of the pair of retaining claws 62 in the circumferential direction of the anchor 61 are both side surfaces in a direction orthogonal to the direction in which the pair of anchors 61 oppose each other. This is because the grommet 11 and the panel 12 are fixed in a posture in which the tongue piece 56 is extended to the side, that is, a posture rotated 90 degrees from the posture in FIG. By setting the direction of the retaining pawl 62 as described above, the thickness in the vertical direction when the anchor 61 is fixed in the cross section can be increased, and the locking force of the retaining pawl 62 is deteriorated. Can be suppressed.

  At the end of the grommet inner 51 opposite to the anchor 61 described above, a panel locking portion 71 that penetrates the opening 21 of the panel 12 and a contact plate portion 72 that is locked to a part of the panel locking portion 71. Is provided. Further, a projection 59 that protrudes in the bulging direction of the bulging portion 38 is formed at a portion corresponding to the bulging portion 38 of the grommet body 31 in the fitting edge portion 53. The protrusion 59 is a protrusion having a rectangular shape in front view and having a size that can be accommodated in the bulging portion 38.

  FIG. 6 is an enlarged perspective view of the panel locking portion 71 and the contact plate portion 72, and FIG. 7 is a front view showing the panel locking portion 71 and the contact plate portion 72. FIG. 7 shows a state in which the contact plate portion 72 stands up at a substantially right angle in the non-locking state of the contact plate portion 72. As shown in FIGS. 6 and 7, the panel locking portion 71 is formed with a pair of main locking claws 73 and secondary locking claws 74.

  The main locking claw 73 is inserted into the opening 21 of the panel 12 from the surface 12a side and locked to the edge of the opening 21 in the width direction, and is formed in a pair with an interval, The claw 73a is directed outward in the pairing direction. For this reason, as shown in FIG. 8, when the main locking claw 73 is pushed in from the surface 12 a side of the opening 21 of the panel 12, the main locking claw 73 is elastically displaced and locked to the edge of the opening 21. A retaining state is obtained. At this time, the joint surface portion 33 of the grommet main body 31 is fitted to the fitting edge portion 53 of the outer peripheral edge of the grommet inner 51, and the joint surface portion 33 is in a fixed state in contact with the surface 12 a of the panel 12.

  On the other hand, the secondary locking claw 74 is inserted into the opening 21 from the front surface 12a side and locks the contact plate portion 72 on the back surface 12b side. The secondary locking claw 74 is formed with the claw 74 a facing in a direction orthogonal to the direction in which the main locking claw 73 forms a pair, and is not locked to the opening 21 even when inserted into the opening 21. State.

  In this example, the secondary locking claws 74 are formed in pairs at intervals. Further, the claws 74a of the paired secondary locking claws 74 are directed outward in the pairing direction.

  The abutting plate portion 72 that is locked to the secondary locking claw 74 is locked to the secondary locking claw 74 in a locked state of the main locking claw 73 with respect to the panel 12, and between the joint surface portion 33 of the grommet body 31. And has a pressing portion 75 for sandwiching the panel 12 from the back surface 12b side (see FIG. 1). Further, in the state where the main locking claw 73 is locked to the opening portion 21, as shown in the phantom line of FIG. 7 and FIG. A restricting lock portion 76 that prevents the disengagement of 73b is formed.

  As shown in FIGS. 6 and 7, the abutting plate portion 72 is integrally formed with the grommet inner 51 via a hinge 77. The fixing position of the base of the abutting plate portion 72 is the position closer to the inner side of the main locking claw 73, that is, the anchor 61 side, and the hinge 77 extends along the direction in which the main locking claw 73 forms a pair. Is formed. Specifically, the hinges 77 are formed at corresponding positions between the main locking claws 73.

  In order to form the contact plate 72 that is rotated by the hinge 77 while forming the main locking claw 73 that is elastically displaced to be locked, a gap is formed between the main locking claw 73 and the base of the hinge 77. A narrow plate-like support portion 78 is erected. The support portion 78 reinforces the vicinity of the hinge 77 and functions as a guide for the backing plate portion 72 and a support for the main locking claw 73.

  The abutting plate portion 72 is integrally formed via the hinge 77. However, since it is formed at a portion corresponding to the hole portion 55 through which the wire harness WH is passed during molding, it can be formed well.

  Since the abutting plate portion 72 is configured to rotate via the hinge 77 as described above, the claw 74a of the slave claw 741 farther from the hinge 77 of the pair of slave claws 74 is closer. It is formed larger than the claw 74 a of the secondary claw 742. That is, as shown in FIGS. 6, 7, etc., the width of the slave hooking claw 741 far from the hinge 77 is formed relatively large. Furthermore, as shown in FIG. 10 and FIG. 11, the angle of the claw 74 a of the slave claw 741 farther from the hinge 77 is formed so as to be lowered toward the tip side, so that more aggressive and powerful locking can be achieved. I am doing so.

  In addition, of the paired slave pawls 74, the slave pawl 742 on the side close to the hinge 77 is in the middle of the rotation of the abutting plate portion 72, that is, on the side far from the hinge 77, as shown in FIG. Prior to locking to the locking claw 741, an inclined surface 74 d that contacts the abutting plate portion 72 is provided. By having the inclined surface 74d, it is possible to prevent the abutting plate portion 72 from being unexpectedly locked to the secondary locking claw 741 far from the hinge 77 before the fixing operation, and to ensure a smooth, simple and quick operation. it can.

  The abutting plate portion 72 is formed in a plate shape, and has a locking notch portion 81 that engages with the slave locking claw 74 described above at the center. Since the paired secondary locking claws 74 are different in size as described above, the locking notches 81 cannot be simply cut out in a plan view, and correspond to the size of the secondary locking claws 74 to be engaged. It is formed in a convex shape in plan view.

  As shown in FIGS. 7 and 9, overhanging portions 82 for widening the portion corresponding to the main locking claw 73 are formed on the left and right side surfaces of the above-described regulation lock portion 76 in the abutting plate portion 72. ing. The overhanging portion 82 is set to have a triangular cross-section with a larger overhanging amount on the upper side when the overhanging portion 82 is rotated and locked to the secondary locking claw 74.

  The aforementioned pressing portion 75 in the abutting plate portion 72 is formed at a position aligned with the main locking claw 73 in a direction orthogonal to the direction in which the main locking claw 73 faces in the locked state with respect to the secondary locking claw 74. Specifically, it is formed on both the left and right sides on the side farther from the hinge 77 than the restriction lock portion 76.

  The shape of the pressing portion 75 can be set to an appropriate shape such as a plate shape or a frame shape, but the thickness and the size of the outer shape are determined so as to ensure the rigidity that functions as the pressing portion.

  The pressing portion 75 is preferably formed with an elastic piece 83 that comes into contact with the panel 12 with an urging force to prevent rattling. For this reason, the pressing portion 75 is not plate-shaped, but is formed in a frame shape, more preferably a rectangular frame shape, as shown in FIGS. 1, 6, and 7, and is provided with a notch portion 75a. It is preferable to form an elastic piece 83 inside.

  The elastic piece 83 is formed in a square plate shape and extends from the base side of the pressing portion 75 as shown in FIGS. The elastic piece 83 is inclined toward a lower surface when the abutting plate portion 72 is locked to the secondary locking claw 74, and the distal end portion of the elastic piece 83 is locked to the secondary locking claw 74 in the pressing portion 75. It protrudes from the bottom surface when you do.

  Further, an isosceles trapezoidal protruding piece 79 protruding outward is formed at a portion of the abutting plate portion 72 opposite to the hinge 77 and sandwiched between the pressing portions 75. The projecting piece 79 is a portion that faces the bulging portion 38 of the grommet body 31 when the abutting plate portion 72 is locked to the secondary locking claw 74.

  The grommet main body 31 and the grommet inner 51 configured as described above are combined and used as the grommet 11 for protecting the wire harness WH. The coupling between the grommet inner 51 and the grommet main body 31 is performed by fitting the fitting edge 53 of the grommet inner 51 inside the joint surface 33 of the one end 31 a of the grommet main body 31. At this time, the protrusion 59 of the grommet inner 51 is fitted below the bulging portion 38 of the grommet body 31 as shown in FIG. Although the grommet main body 31 is flexible, unexpected protrusion and separation can be effectively prevented by fitting the protrusion 59.

  The operation of fixing the one end 11a of the grommet 11 to the panel 12 is performed as follows.

  First, as shown in FIG. 2, the contact plate 72 in the grommet inner 51 of the grommet 11 is set up by about 90 degrees so as to stand in the extending direction of the anchor 61.

  In this state, as indicated by arrows in FIG. 2, the panel locking portion 71, the contact plate portion 72, the tongue piece 56, and the inner cover 52 are inserted into the opening portion 21 of the panel 12, and the anchor 61 is inserted into the insertion hole 27. insert. When the anchor 61 is inserted into the insertion hole 27, the anchor 61 is locked to the insertion hole 27 as shown in FIG. Similarly, when the panel locking portion 71 is inserted into the opening portion 21, the main locking claw 73 is locked to the opening portion 21 of the panel 12 as shown in FIG. With such three engagements, fixing in a state where the joint surface portion 33 of the grommet body 31 is pressed against the surface 12a of the panel 12 is completed.

  Thereafter, as shown in FIG. 10, the abutting plate portion 72 is rotated to the side of the locking claw 74 according to the hinge 77, and the pair of locking claws 74 are locked to the locking notch portion 81. Let Since the open space 26 is formed at the end of the opening portion 21 of the panel 12, the rotating operation of the abutting plate portion 72 can be performed through the open space 26. Since the abutting plate portion 72 is integrally formed via the hinge 77, the locking operation is simple, convenient and highly workable.

  Further, the pawl 74a of the slave pawl 741 farther from the hinge 77 of the pair of slave pawls 74 is formed larger than the pawl 74a of the slave pawl 742 closer, so that the abutting plate 72 Can be strongly held, and from this point, a better fixed state can be obtained.

  When the contact plate portion 72 is rotated, as shown in FIGS. 1, 11, and 12, the holding portions 75 on the left and right sides of the contact plate portion 72 cause the opposing portions of the panel 12, specifically, the edge piece 25 to move. The panel 12 is sandwiched between the grommet body 31 and the grommet body 31. As a result, the load applied to one of the main locking claws 73 which is on the bottom when mounted on the vehicle is suppressed, and the occurrence of looseness and detachment are prevented. Further, when the shape tolerance including the opening 21 of the panel 12 is the maximum and the grommet inner 51 with respect to the opening 21 is offset, the main locking claw 73 may be unexpectedly removed, or the wire harness in the grommet 11 Even when the WH is pulled and tension is applied, the grommet 11 can be prevented from falling off the panel 12.

  Moreover, when the pressing portion 75 presses the back surface 12b of the panel 12, as shown in FIG. 13, which is a cross-sectional view taken along the line AA of FIG. Touch. As a result, rattling can be prevented while causing the pressing portion 75 to exhibit a stopper function. Since such an elastic piece 83 is formed inside the holding portion 75 formed in a rectangular frame shape, it is possible to avoid an increase in size due to the formation of the elastic piece 83 and to perform stable holding. The ability to suppress the increase in size also contributes to the good fit and formation of the contact plate portion 72 formed integrally with the hinge 77 as described above.

  Further, since the pressing portion 75 assists in maintaining the locked state of the main locking claw 73 at a position aligned with the main locking claw 73 that locks against the panel 12, the above-described function of the pressing portion 75 is effective. Can be demonstrated.

  At the same time, when the contact plate 72 is locked by the secondary locking claw 74, the main locking claw that has already been locked to the panel 12 by the restriction lock portion 76 of the contact plate 72 as shown in FIG. The main locking claw 73 is fitted between the 73 and prevents the main locking claw 73 from being displaced in the unlocking direction. Thereby, the locked state by the main locking claw 73 is maintained, and the fixed state with respect to the panel 12 of the grommet 11 is maintained.

  In this way, in addition to the locking by the anchor 61 and the main locking claw 73 of the panel locking portion 71, the holding by the pressing portion 75 of the backing plate 72 and the elastic piece 83 is prevented from rattling. In addition, a good fixed state can be obtained, and a good fixed state can be maintained even in an environment where vibration occurs.

  Further, in the grommet fixing structure 13 using the grommet 11 as described above, the anchor 61 that is locked only by being inserted is formed at a portion corresponding to the inner portion of the panel 12, and cooperates with the backing plate portion 72. A panel locking portion 71 that also presses from the back is formed at the end 22 of the panel 12 more than the inner side 23 of the panel 12, and the inner side 23 and the panel locking portion 71 to which the anchor 61 of the panel 12 is locked. A step portion 24 is provided between the end portion 22 and the end portion 22. For this reason, the locking position and fixing mode of the anchor 61 extending in the direction of the step of the stepped portion 24 and locking to the inner portion 23 of the panel 12 and the panel locking portion 71 locked to the end portion 22 of the panel 1 are fixed. The anchor 61 and the panel locking portion 71 assist each other in the locked state while taking advantage of this difference on the panel 12 having the stepped portion 24. As a result, a good fixed state can be obtained and a good fixed state can be maintained.

  Further, the main locking claw 73 is formed in pairs with a gap, and the claw 73a is directed outward in the pairing direction. The secondary locking claw 74 is the main locking claw 73. Since the claw 74a is formed in the direction orthogonal to the pairing direction, it is possible to avoid adversely affecting the locking state between each other, and the main locking claw 73 and the secondary locking claw 74 are provided. The form of the panel latching | locking part 71 can be put together compactly. For this reason, as described above, the elastic piece 83 is formed in the abutting plate portion 72, and it is possible to contribute to forming the elastic piece 83 with a good fit as well as avoiding an increase in size.

  In addition, since the bulging portion 38 that fits into the opening 21 is formed in the grommet main body 31, the gap generated in the opening 21 can be reduced to suppress the entry of foreign matter. Further, even when the grommet 11 is pulled so as to close the opening 21, dripping can be suppressed. Such an action of the bulging portion 38 is surely performed because the bulging portion 38 is reinforced by the projection 59 of the grommet inner 51.

  The above configuration is one form for carrying out the present invention, and the present invention is not limited to the above-described configuration, and other configurations can be adopted.

  For example, the main locking claws 73 and the secondary locking claws 74 of the panel locking portion 71 are formed in pairs, but may be more pairs or more than two. There may be one sub-claw 74.

  In addition, a plurality of elastic pieces 83 formed on the holding portion 75 may be formed for each holding portion 75, and the direction of the elastic piece 83 can be set as appropriate. The elastic piece 83 may be provided so as to be attached to the outer edge of the pressing portion 75.

  Since the overhanging portion 82 formed on the holding portion 75 faces the back surface of the main locking claw 73, the overhanging portion 82 and the back surface of the main locking claw 73 can be locked or press-fitted. it can.

  Further, the contact plate portion 72 may be provided separately.

DESCRIPTION OF SYMBOLS 11 ... Grommet 11a ... One end part 12 ... Panel 12a ... Front surface 12b ... Back surface 13 ... Grommet fixing structure 21 ... Opening part 24 ... Step part 38 ... Protruding part 51 ... Grommet inner 59 ... Projection part 61 ... Anchor 71 ... Panel locking Part 72 ... Abutting plate part 73 ... Main locking claw 73a ... Claw 74 ... Subordinate locking claw 74a ... Claw 75 ... Pressing part 75a ... Notch part 76 ... Regulation lock part 77 ... Hinge 83 ... Elastic piece

Claims (14)

A grommet inner included in an end portion on a fixed side with respect to the panel of the grommet,
A panel locking portion penetrating the opening of the panel, and a contact plate portion locked to a part of the panel locking portion,
The panel locking portion includes a main locking claw that is inserted into the opening from the front surface side and locks to an edge of the opening, and is inserted into the opening from the front surface side and the contact plate portion on the back surface side. A secondary locking claw is formed to lock the
The grommet inner in which the pressing plate portion is formed with a pressing portion that is locked to the secondary locking claw in a locked state of the main locking claw with respect to the panel and sandwiches the panel from the back side. The main locking claws are formed in pairs at intervals, and the claws are directed outward in the pairing direction,
2. The regulation lock portion that is formed between the main locking claws in a state where the main locking claw is locked to the opening portion and prevents the claw from being detached. The grommet inner described. The main locking claws are formed in pairs at intervals, and the claws are directed outward in the pairing direction,
The grommet inner according to claim 1, wherein the secondary locking claw is formed with the claw directed in a direction orthogonal to a direction in which the main locking claw is paired. The grommet inner according to any one of claims 1 to 3, wherein the contact plate portion is integrally formed via a hinge. The main locking claws are formed in pairs at intervals, and the claws are directed outward in the pairing direction,
The contact plate portion is integrally formed through a hinge extending along a direction of forming a pair of the main locking claws,
The sub-claws are formed with a pair in a direction perpendicular to the opposing direction of the main claw and with the claw facing outward,
2. The grommet inner according to claim 1, wherein, among the pair of slave latching claws, the claws of the slave latching claws farther from the hinge are formed larger than the claws of the slave slave claws closer to the hinge. The grommet inner according to any one of claims 1 to 5, wherein an elastic piece that contacts the panel with an urging force is formed on the pressing portion. A notch is formed in the pressing part,
The grommet inner according to claim 6 with which said elastic piece was formed in said notch. The said pressing part is formed in the position aligned with the said main latching claw in the direction orthogonal to the direction which the said main latching claw opposes in the latching state with respect to the said secondary latching claw. Grommet inner as described in any one. A grommet provided with the grommet inner according to any one of claims 1 to 8. The grommet fixing structure which fixed the edge part which contains the said grommet inner in the grommet of Claim 9 to the said panel. The grommet fixing structure according to claim 10, wherein a bulging portion that fits into the opening is formed at a portion corresponding to the opening in the grommet. The grommet fixing structure according to claim 11, wherein a protrusion that protrudes in a bulging direction of the bulging portion is formed at a portion corresponding to the bulging portion in the grommet inner. 13. The anchor according to claim 10, wherein an anchor that is inserted into the panel and is fixed to be detached is formed in the grommet inner in addition to the panel locking portion and the contact plate portion. Grommet fixing structure. The anchor is formed at a site corresponding to an inner portion of the panel;
14. The grommet fixing according to claim 13, wherein the panel locking portion and the contact plate portion are formed on an end portion side of a step portion formed on the end portion side of the inner portion and the inner portion of the panel. Construction.

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