JP4278347B2 - Mounting structure of locking part legs - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a rope hook for mooring a load collapse prevention net fixed to a wall surface of a rear luggage compartment of a vehicle or the back of a rear seat, or a free end of a sun visor provided in a front seat of an automobile. More particularly, the present invention relates to a leg mounting structure in a plastic accessory locking part such as a holder that can be held, and more specifically, a plate-like base, a cylindrical stem upright from the surface of the base, and the cylindrical stem A plurality of guiding rigid claws projecting on the outer peripheral surface along the central axis and capable of being fitted into a recessed groove provided by cutting out the peripheral edge of the mounting hole of the panel, and similarly along the central axis of the stem The present invention relates to a mounting structure for a locking part leg portion, which includes a position-fixing flexible claw that protrudes from the outer peripheral surface of the lever and elastically retracts radially inward.
[0002]
[Prior art]
Conventionally, an “automobile sun visor holder” disclosed in Design Registration No. 1024496 is known as an attachment structure for such a locking component leg. In this publication, a cylindrical stem portion is provided on the back side of a holder body having a C-shaped holding portion, and two fixing claws are integrally formed on opposite side surfaces of the stem portion. One deflectable lock claw is formed on the side surface of the stem portion at an intermediate position via a slit, and a concave operation window is provided at a back surface portion corresponding to the lock claw. And when fixing the holder of such a structure to the panel in which the notch opening part corresponding to the pair of fixing claws is formed in the peripheral edge, the fixing claw is aligned with the notch opening part in advance. Then, insert the cylindrical stem into the mounting hole and push the fixing claw until it completely protrudes to the back side of the panel, and then engage the periphery of this hole to flex the locking claw inward. However, if the stem portion is rotated 90 degrees in a predetermined direction, the lock claw is restored and fitted into one of the notch portions, and further rotation of the holder body is prevented. At the same time, the rear end surface of the fixing claw is locked to the hole edge of the mounting hole on the back surface of the panel, so that the axial movement is also restricted.
[0003]
In the holder having such a configuration, when the stem portion is inserted into the mounting hole drilled in the panel having the cutout portion arranged opposite to the holder, the holder can be elastically biased toward the fixing claw and radially inward. The claw having three tapered surfaces made of the lock claw has a tip portion at the same axial position and two cutout portions in the opposite direction. Only the nail of the book is inserted into the notch, and the other two become ridges located on the panel, and the time-consuming work of rotating to the left and right several times to find the proper position is strong. Will be.
[0004]
[Problems to be solved by the invention]
Such a rotation operation for positioning not only wastes time, but also removes or scratches the tip of the fixed claw and the lock claw, further making insertion difficult. It will be. For example, there is a possibility that the stem part is inclined and pushed with respect to the attachment hole at the time of insertion, and conversely, the peripheral part of the attachment hole may be damaged. However, the present invention reduces the labor during insertion as much as possible, and obtains a mounting structure for a locking part leg that can be securely and accurately locked to the panel without causing damage as described above. It is for the purpose.
[0005]
[Means for Solving the Problems]
To achieve the above object, a mounting structure for a locking part leg according to the present invention described in claim 1 includes a plate-like base, a cylindrical stem upstanding from the surface of the base, and the cylindrical stem. and projecting from and the panel circumference a switching devoid rigid nail groove into a plurality of guiding and supporting fittable provided mounting holes in its outer peripheral surface along the central axis of the central axis of the front Symbol stem a mounting structure of the locking part leg is delimited consisting, and deflection claw for position fixing projecting from the outer peripheral surface of the stem by two slits along the outer surface of at least the rigid pawl Is inclined in a tapered manner toward the tip along the central axis of the cylindrical stem, and the tip of the rigid claw is a flat surface and recedes from the tip of the cylindrical stem, and A shaft that coincides with or precedes the tip of the bent claw There countercurrent position, wherein the deflection claw is retractable into the resiliently radially inwards the stem tip portion side of the terminal as a fulcrum of the slit, the stem tip portion side of the terminal of the slits, the rigid The axial position precedes the flat surface of the claw, and the number of the concave grooves and the circumferential position provided around the mounting hole of the panel coincide with the number and the circumferential position of the rigid claws. It is characterized by being arranged.
[0006]
With the configuration described in claim 1, since the tip of the rigid claw is retracted from the tip of the cylindrical stem, the tip portion of the cylindrical stem is cylindrical over a certain axial length, Even if the hand is dark, it can be rotated with its tip portion simply inserted into the mounting hole of the panel, so that the alignment of the rigid claws and the concave grooves is facilitated.
[0007]
In this rotation operation, the tip of the rigid claw slides on the surface of the peripheral edge of the panel mounting hole. By flattening the tip of the rigid claw, the cylindrical stem is displaced in the rotational axis. Smooth rotation is possible. When the locking part is pushed in from above after the rotation operation, the rigid claw penetrates to the back side of the panel. At that time, the bending claw comes into contact with the peripheral edge of the mounting hole and becomes a state of a heel bent radially inward. . Thereafter, when the locking part is rotated again, the flexure claw is fitted into the concave groove, and at the same time, elastically returns in the concave groove to fix the use angle position of the locking part.
[0008]
Also, by setting the tip position of the rigid claw to the axial position that coincides with or precedes the tip of the bent claw, the tip of the cylindrical stem is inserted into the mounting hole and at the same time, the flat tip of the rigid claw is inserted into the mounting hole. In the stage of the first insertion operation that rotates and slides around the periphery, the flexing claw smoothly moves into the concave groove of the rigid claw without interfering with the rotational sliding around the axis perpendicular to the panel surface. Guarantee insertion. At the same time, even after the rigid claw has passed through the concave groove, the amount of the flexing claw entering into the mounting hole becomes shallow, so that the degree of flexure is also reduced in the rotation operation associated with the rotation operation of the locking part to the use angle position. So it will be easier.
[0009]
Further, in the process of inserting the rigid claws and the flexure claws into the mounting holes, at least the outer surfaces of the rigid claws and the flexure claws are inclined in a tapered shape along the central axis of the cylindrical stem, so that the surface of the normal panel Each claw is smoothly inserted into the recessed groove and the mounting hole of the panel without being caught in the peripheral edge of the mounting hole of the interior trim attached integrally to the panel.
[0010]
As described above, the mounting structure of the locking part legs according to the present invention is extremely easy and in a short time, and does not cause damage to the claw and the tip of the cylindrical stem under any circumstances, and is reliable and accurate. Can be locked to the panel.
[0011]
According to a second aspect of the present invention, the side surface of the rigid claw is inclined in a tapered shape toward the tip. Such a configuration means that the rigid claws become tapered from both sides to the tip portion, which means that the circumferential length of the flat surface of the tip portion is shortened, and as a result, it is inserted into the concave groove in the first rotation operation. It is possible to carry out extremely smoothly and surely without being caught, and it is possible to more quickly and reliably attach the locking part to the panel.
[0012]
According to a third aspect of the present invention, there is provided a mounting structure for a locking part leg according to the present invention, wherein one of the concave grooves has a dimension corresponding to a bending claw.
[0013]
With the configuration described in claim 3, the assembly of the claw having different dimensions with each other into the recessed groove in which the claws are misplaced is completely avoided, and as a result, the locking parts can be quickly and reliably attached in a groping state. It can be inserted into the hole and fixed.
[0014]
Furthermore, the attachment structure of the locking part leg according to the present invention described in claim 4 is characterized in that the concave groove having a dimension corresponding to the flexure claw has the largest dimension. This means that the protruding length or lateral width of the flexing claw is longer or wider than those of the rigid claw, and is therefore necessary to give the flexing claw greater flexibility. It is possible to have a wide nail width. Of course, the size of the flexure claw greatly contributes to stable fixing of the locking parts.
[0015]
Hereinafter, an embodiment of a mounting structure for a locking part leg according to the present invention will be described in detail with reference to the accompanying drawings.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is an exploded perspective view of a mounting structure for a locking part leg according to the present invention. FIG. 2 is a front view seen from an arrow X in FIG. FIG. 3 is a side view seen from Y in FIG. FIG. 4 is a front view showing a state where the mounting structure of the locking part leg according to the present invention is applied to the mounting hole of the panel covered with the interior trim. FIG. 5 is a front view showing a state immediately after the mounting structure of the locking part leg portion is rotated from the state shown in FIG. 4 and the rigid claws have passed through the interior trim, the panel mounting holes, and the concave grooves. FIG. 6 is a cross-sectional plan view of the state shown in FIG. 5 taken along line AA that matches the surface of the interior trim. FIG. 7 is a plan sectional view similar to FIG. 6 and shows a use state in which the locking part leg is further rotated from the position of FIG. 6 and brought to the fixed position.
[0017]
An embodiment of the mounting structure of the locking part leg according to the present invention will be described below with reference to FIGS.
[0018]
The attachment structure of the leg portion of the locking part 1 according to the present invention includes a plate-like base 2, a cylindrical stem 3 standing upright from the back surface of the base, and a projecting to the outer peripheral surface along the central axis L of the cylindrical stem. The locking part 1 in the opposite direction of the panel in the use position, which is guided and guided into the grooves 101 and 102 diametrically drilled around the mounting hole 100 of the panel P and then slightly rotated In order to prevent the pulling out of the cylindrical stem 3, two rigid claws 4 arranged in the diameter direction of the cylindrical stem 3 supported from the back side are provided.
[0019]
Similarly, at a radial position perpendicular to the diameter line connecting the two rigid claws, the projection protrudes from the outer peripheral surface along the central axis L of the cylindrical stem 3 and is elastically retractable radially inward. A single flexing claw 5 defined by two slits 5b and 5b parallel to each other is provided along the central axis L of the cylindrical stem 3 for fixing the angular position of the stop part 1.
[0020]
Furthermore, the outer peripheral surface 4a of the rigid claw 4 is inclined in a taper shape along the central axis L of the cylindrical stem. Of course, the outer peripheral surface 5a of the bending claw 5 is also inclined in a taper shape, and a flat surface 6 is formed at the distal end of the rigid claw 4, and is retracted by a distance h from the distal end 7 of the cylindrical stem 3 in the axial direction. Therefore, the tip portion 7 of the cylindrical stem is completely cylindrical over a slight axial distance h. And the front-end | tip 5c of the bending nail | claw 5 is further set back along the axial direction by the distance k from the front-end | tip in which the flat surface 6 of this rigid-body nail | claw 4 was formed. In other words, the tip of the rigid claw 4 on which the flat surface 6 is formed is at an axial position that precedes the tip 5c of the bent claw 5 by a distance k. However, when the elastic repulsive force of the flexure claw 5 does not cause a very large frictional resistance with the peripheral portion of the mounting hole 100 in the rotation of the locking part 1 to the fixed position, this distance k is omitted and the rigid body is omitted. It is also possible to arrange the tip 5 c at the same position as the tip 6 of the claw 4.
[0021]
With such a configuration in which the tip position 6 of the rigid claw 4 is aligned with or precedes the tip of the flexing claw 5, the tip 7 of the cylindrical stem 3 is moved as shown in FIGS. At the stage of the first insertion operation in which the flat surface 6 at the tip of the rigid claw 4 is inserted into the mounting hole 100 and then rotates and slides around the mounting hole, the axis of the flexible claw 5 is perpendicular to the panel surface. The smooth insertion of the rigid claw 4 into the concave grooves 101 and 102 is ensured without interfering with the rotational sliding around. At the same time, even after the rigid claw 4 passes through the concave groove, the amount of the bent claw 5 entering the mounting hole 100 becomes shallow, so that the degree of flexion associated with the rotation operation of the locking part to the use angle position is reduced. So it will be easier.
[0022]
Further, the number and the circumferential position of the concave grooves 102 provided around the panel mounting hole 100 are provided so as to coincide with the number and the circumferential position of the rigid claws 4 and the bending claws 5 as described above. In this embodiment, two rigid claws 4 and 4 and one flexible claw are provided in the opposing direction, but the number of claws can be increased as necessary and each claw can be arranged at a predetermined angular interval. It is. In this embodiment, the tapered surface is formed only on the outer peripheral surface of the rigid claw, but it is also advantageous to form the tapered surface on both side surfaces. That is, the circumferential length of the flat surface 6 at the tip portion is shortened, and as a result, the insertion of the two rigid claws 4 and 4 into the concave groove by the first rotation operation can be carried out extremely smoothly and reliably.
[0023]
As shown in FIG. 4, the first operation for attaching the locking part 1 to the panel P covered with the exterior trim T is to insert the distal end portion 7 of the cylindrical stem 3 into the panel attachment hole 100. Next, the flat surface 6 formed at the tip end portion of the rigid claw 4 is pressed against the peripheral portion of the hole against the surface of the trim T, and is further slid and rotated over a slight angular range. 4, 4 and 4 are aligned with the concave grooves 101 and 102 of the mounting hole 100, and then the locking part 1 is pressed to insert the rigid claws into the concave grooves. In the rotation operation for each cylindrical stem 3, it is possible to smoothly insert the rigid claw 4 into the grooves 101 and 102 without the center of rotation deviating from the axis L. This can be easily inserted into the mounting hole 100 of the panel P even if the work is carried out in the dark state of the hand, or the tip portion thereof is searched.
[0024]
By this first slight rotation and pressing operation, the rigid claws 4 and 4 pass through the concave grooves 101 and 102 and penetrate the back side of the panel P as shown in FIGS. At that time, the elastic claw 5 maintains its elastic repulsion force with the heel that is in contact with the peripheral edge of the mounting hole 100 and bent inward in the radial direction. Further, by rotating the locking part 1 by 90 degrees, as shown in FIG. 7, the flexure claw 5 is fitted into the corresponding concave groove 101 and elastically returns in the concave groove, and the locking part 1 Is securely fixed at the use angle position. Although the fixing of the attachment part 1 to the panel P is completed by such three steps of operations, these operations are actually always a series of operations, and are substantially a so-called “one-touch operation”.
[0025]
If the conventional claw is a rigid claw that does not retract the tip portion and that does not have a flat surface that secures the stability of the shaft center at the time of initial insertion, the central axis of the cylindrical stem 3 is the first. If L is not positioned perpendicular to the plane of the panel P, it will accidentally drop the flexing claw first into the groove 101 and lose the groove where the other rigid claw 4 should be fitted, This causes inconveniences such as damaging the tapered surface provided on the outer peripheral portion. In particular, it is obvious that such a situation is likely to occur when such work is performed in a dark state.
[0026]
Further, in the above-described series of fixing work of the locking parts, it is preferable that the size of the flexure claw 5 has a particularly large outer diameter in the circumferential direction, and at the same time, the concave groove also corresponds to the circumferential direction. Must have a width. In that case, it is preferable to make the circumferential width of the other concave groove 102 coincide with the width of the rigid claw in order to prevent erroneous insertion. Needless to say, the concave groove 101 can be lengthened not only for its width but also for its length for design reasons.
[0027]
【The invention's effect】
As described above, the locking part leg mounting structure according to the present invention is extremely easy, in a short time, and without any damage to the claw and the tip of the cylindrical stem under any circumstances. It can be accurately locked to the panel.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a mounting structure for a locking part leg according to the present invention.
FIG. 2 is a front view seen from an arrow X in FIG.
FIG. 3 is a side view as seen from Y in FIG.
FIG. 4 is a front view showing a state in which the mounting structure of the locking part leg according to the present invention is applied to the mounting hole of the panel covered with the interior trim.
5 is a front view showing a state immediately after the rigid claws have passed through the interior trim, the panel mounting holes, and the concave grooves by rotating the mounting structure of the locking part legs from the state shown in FIG. 4;
6 is a cross-sectional plan view of the state shown in FIG. 5 taken along line AA that coincides with the surface of the interior trim. FIG.
7 is a plan sectional view similar to FIG. 6 and shows a state in which the locking part leg is further rotated from the position of FIG. 6 and brought to a fixed position.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Locking part 2 ... Base 3 ... Cylindrical stem 4 ... Rigid claw 4a ... Outer peripheral surface 5 ... Deflection claw 5a ... Outer peripheral surface 5b ... Slit 5c ... Tip part 6 ... Flat surface 7 ... Tip part 8 ... Recess 20 ... U-shaped portion 21 ... pivot 100 ... mounting hole 101 ... concave groove 102 ... concave groove P ... panel T ... interior trim L ... central axis h ... distance k ... distance

Claims (4)

A plate-like base;
A cylindrical stem upstanding from the surface of the base;
A plurality of guide and support rigid claws that protrude from the outer peripheral surface along the central axis of the cylindrical stem and can be fitted into a recessed groove provided by cutting out the periphery of the mounting hole of the panel;
Before Symbol A mounting structure of the locking component legs are defined by the central axis into two slits along consisting deflection and pawl, the projecting position for a fixed to the outer peripheral surface of the stem of the stem,
At least the outer surface of the rigid claw is inclined in a tapered manner toward the tip along the central axis of the cylindrical stem;
The tip of the rigid claw is a flat surface and is retracted from the tip of the cylindrical stem and is in an axial position that coincides with or precedes the tip of the flexible claw;
The flexure claw can be elastically retracted radially inward with the end of the slit on the stem tip portion side as a fulcrum;
The end of the slit at the tip end portion side is at an axial position preceding the flat surface of the rigid claw,
Further, the locking component is characterized in that the number and the circumferential position of the concave grooves provided around the mounting hole of the panel are arranged so as to coincide with the number and the circumferential position of the rigid claws. Leg mounting structure.   The attachment structure for a locking part leg according to claim 1, wherein a side surface of the rigid claw is inclined in a tapered shape toward the tip.   The attachment structure for a locking part leg according to claim 1, wherein one of the concave grooves has a size corresponding to the bending claw.   The mounting structure for a locking part leg according to claim 3, wherein the groove having a dimension corresponding to the bending claw has the largest dimension.

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