JP5181889B2 - Resin container structure - Google Patents

Description

  The present invention relates to a resin container structure in which a resin clip is attached to a resin container body by welding.

Patent Document 1 below discloses a structure in which a protective plate is attached to a fixture that is welded and fixed to a resin fuel tank. In this structure, the protective plate is attached to the resin fuel tank by engaging both ends of the clip inserted through the protective plate with the fixture.
Japanese Utility Model Publication No. 61-196821

  However, according to the above prior art, the magnitude relationship between the welding strength of the fixture welded and fixed to the resin fuel tank and the engagement strength of the clip for engaging the protective plate with the fixture is not specified. For this reason, if the engagement strength of the clip is greater than the welding strength of the fixture, if a large external force is applied to the protective plate, the load applied to the welded portion between the resin fuel tank and the fixture increases.

  In view of the above facts, an object of the present invention is to obtain a resin container structure capable of reducing a load applied to a welded portion between a resin container main body and a resin clip.

According to a first aspect of the present invention, there is provided a resin container structure including a resin container main body, an engaging portion and a base portion welded to an outer wall surface of the resin container main body, a support portion for supporting parts, and the engagement member. And an engagement strength between the engagement portion and the engaged portion is smaller than a welding strength of the pedestal portion to the resin container main body and A resin clip configured to be removable from the pedestal portion when an external force exceeding the engagement strength is applied, and engagement between the engagement portion and the engaged portion wherein said engaging portion from the state and the hinge portion for relatively rotating the falling portion in the direction of disengagement of the engaged portion relative to the base portion, it has a, the falling portion, the bottom surface And a side wall portion standing from the bottom surface portion, and the engaged portion is formed on the bottom wall portion. And with that, and said supporting portion to the sidewall portion.

According to a second aspect of the present invention, in the resin container structure according to the first aspect, the engaged portion includes a hole portion formed in the bottom surface portion, and the pedestal portion is a protruding portion inserted into the hole portion. The engaging portion is an engaging claw formed on the protruding portion and engaged with an edge of the hole, and the engaging claw is engaged with the edge of the hole. The engaging claws are disengaged in a direction intersecting with a welding surface between the base portion and the resin container main body .

According to this invention of Claim 1, the base part which comprises a resin clip is welded to the outer wall surface of the resin container main body. The pedestal portion includes an engaging portion, and an engaged portion provided in a drop-off portion constituting the resin clip is engaged with the engaging portion. Parts are supported on the support portion provided in the drop-off portion. Furthermore, the engagement strength between the engaging portion and the engaged portion is lower than the welding strength of the pedestal portion to the resin container body, for example, when a large external force is applied to a component supported by the support portion. When an external force exceeding the strength is applied, the engagement portion and the engaged portion are disengaged, and the drop-off portion is dropped from the pedestal portion. Thereby, the load concerning the welding part of a resin container main body and a base part can be reduced.
In addition, a hinge portion that rotates the drop-off portion relative to the pedestal portion is provided, and when an external force exceeding the engagement strength between the engagement portion and the engaged portion acts, the engagement portion and the engaged portion are engaged. The engagement with the joint part is released, and the dropping part is rotated with respect to the pedestal part by the hinge part, or the hinge part is broken and the dropping part is dropped from the pedestal part. Thereby, the load concerning the welding part of a resin container main body and a base part can be reduced. In addition, for example, the pedestal portion and the drop-off portion can be connected by a hinge portion to form a single part, which can be integrally formed and manufactured easily.
Moreover, the drop-off portion includes a bottom surface portion and a side wall portion standing from the bottom surface portion, and an engaged portion is formed on the bottom wall portion and a support portion is formed on the side wall portion. . Accordingly, the component is supported by the support portion formed on the side wall portion, and the engaging portion is engaged with the engaged portion formed on the bottom wall portion.

According to the second aspect of the present invention, the engaged portion includes the hole portion formed in the bottom surface portion, the pedestal portion includes the protruding portion inserted into the hole portion, and the engaging portion includes the protruding portion. And an engaging claw that is engaged with the edge of the hole. With this configuration, the engagement claw is released from the state in which the engagement claw is engaged with the edge of the hole in the direction intersecting the welding surface between the base portion and the resin container main body .

As described above, the resin container structure according to the first aspect of the present invention has an excellent effect that the load applied to the welded portion between the resin container main body and the pedestal portion can be reduced. Further, for example, by connecting the pedestal part and the drop-off part with a hinge part to form a single part, integral molding is possible and manufacturing becomes easy.

The resin container structure according to the second aspect of the present invention has an excellent effect that the load applied to the welded portion between the resin container main body and the pedestal portion can be more effectively reduced.

  Hereinafter, 1st Embodiment of the resin container structure which concerns on this invention is described using FIGS. 1-4.

  [First Embodiment]

  FIG. 1 shows the overall configuration of the resin container structure. Further, FIG. 2 shows a single base portion of a resin clip used in the resin container structure, and FIG. 3 shows a single drop portion of the resin clip. As shown in these drawings, the resin container structure 10 includes a resin clip 14 attached to an outer wall surface 12A of the resin container body 12. The resin clip 14 includes a pedestal portion 16 welded to the outer wall surface 12 </ b> A of the resin container body 12, and a drop-off portion 18 attached to the pedestal portion 16 so as to be detachable.

  In this embodiment, the resin container main body 12 is a resin container for vehicles disposed inside the vehicle. In this embodiment, in order to make the description easy to understand, the upper side in the vertical direction of the resin clip 14 shown in FIG. 1 is described as the upper side of the clip, and the lower side in the vertical direction is described as the lower side of the clip. It is not limited to the structure attached to the upper side of the container main body 12. That is, the resin clip 14 may be attached to any position of the resin container body 12 such as the side surface or the lower surface of the resin container body 12.

  2 (A) and 2 (B), the pedestal portion 16 is made of a resin molded body, and has a rectangular bottom wall portion 16A and a clip in FIG. 2 (A) from the bottom surface of the bottom wall portion 16A. A pair of leg portions 16B are provided so as to protrude downward. The pair of leg portions 16 </ b> B are formed substantially in the vicinity of the edges of the two opposing sides of the pedestal portion 16. The pedestal 16 is provided with a side wall 16C along the vertical direction of the clip in FIG. 2 so as to surround the edge of the bottom wall 16A, and between the bottom wall 16A and the side wall 16C inside the side wall 16C. A step portion 16D for forming a step is provided.

  The pedestal portion 16 is formed with a box-shaped protruding portion 20 that protrudes to the upper side of the clip in FIG. 2 (the side opposite to the resin container main body 12) at the center portion of the bottom wall portion 16A. The lower part of the protrusion 20 is an opening. On the pair of opposing side walls of the protruding portion 20, two engaging claws 20A as engaging portions protruding in the clip outer direction and split grooves 20B formed on both sides of the engaging claws 20A are formed. Yes. The engaging claw 20A is continuous with the upper surface portion 20C of the protruding portion 20 at the upper part of the dividing groove 20B, and the clip lower side is a free end. The engaging claw 20A includes a claw portion near the lower end portion of the free end, and can be elastically deformed in the direction of reducing the diameter with respect to the side wall surface of the protruding portion 20 (inward direction of the protruding portion 20). .

  3A shows a perspective view of the drop-off portion 18 as viewed from above, and FIG. 3B shows a perspective view of the drop-off portion 18 as seen from below. As shown in these drawings, the drop-off portion 18 is made of a resin molded body, and extends along the up-down direction of the clip in FIG. 3A from the substantially rectangular bottom surface portion 18A and one side of the edge portion of the bottom surface portion 18A. And a substantially rectangular side wall portion 18B standing in a direction substantially orthogonal to the bottom surface portion 18A. A wall portion 18C is disposed on both sides adjacent to the side where the side wall portion 18B of the bottom surface portion 18A is provided so as to connect the bottom surface portion 18A and the side wall portion 18B. The wall portion 18C has a shape in which the upper end portion in FIG.

  A rectangular concave portion 18D is formed inside the bottom surface portion 18A, and a hole portion 22 as an engaged portion to be engaged with the engaging claw 20A is formed in the central portion of the concave portion 18D. . The hole 22 has a rectangular shape and is slightly larger than the outer wall surface of the protrusion 20, and the hole 22 is inserted into the protrusion 20. At that time, the hole portion 22 is inserted into the protruding portion 20 in a state where the side wall portion 18B of the drop-off portion 18 and the one engaging claw 20A face each other. Moreover, the distance between the front-end | tip parts of two engagement nail | claw 20A is set larger than the distance between the edge walls of the hole 22 which two engagement nail | claw 20A opposes. In addition, the distance between the lower wall surfaces of the front ends of the two engaging claws 20A is set to be smaller than the distance between the edge walls of the hole 22 where the two engaging claws 20A face each other. Further, the distance from the bottom wall portion 16A of the pedestal portion 16 to the tip end portion of the engaging claw 20A substantially matches the plate thickness of the concave portion 18D of the drop-off portion 18.

  As shown in FIG. 4, when the protrusion 20 is inserted into the hole 22 (when the hole 22 is externally inserted into the protrusion 20), the engagement claw 20 </ b> A is reduced in diameter by the hole 22. Then, the dropout portion 18 is configured to be attached to the pedestal portion 16 by the engagement claw 20A being engaged with the upper edge of the hole portion 22 of the recess 18D by the elastic restoring force of the engagement claw 20A. . In the present embodiment, the engaging claw 20 </ b> A is configured to be engaged with the upper edge of the hole 22 in a state where the lower surface of the recess 18 </ b> D of the drop-off portion 18 is in contact with the upper surface of the bottom wall portion 16 </ b> A of the base portion 16. ing.

  Further, the resin container structure 10 is configured such that the engagement strength between the engaging claw 20A and the upper edge of the hole 22 is smaller than the welding strength of the pedestal portion 16 to the outer wall surface 12A of the resin container main body 12. Yes. With this configuration, when an external force exceeding the engagement strength between the engagement claw 20A and the upper edge of the hole 22 is applied, the engagement between the engagement claw 20A and the upper edge of the hole 22 is released or engaged. The claw 20 </ b> A is broken and the drop-off portion 18 can be dropped from the base portion 16.

  A long hole 24 as a support portion is formed in the central portion of the side wall portion 18B. The long diameter portion of the long hole 24 is provided in a slightly oblique direction with respect to the clip lateral direction of the side wall portion 18B. A clamp or a bracket (not shown) as a part is attached to the long hole 24. For example, a locking portion formed on the clamp may be inserted into the long hole 24 and locked, or a bracket such as a bolt may be inserted into the long hole 24 to fasten and fix the bracket. In the present embodiment, although not shown in the drawings, the long hole 24 is inserted into a locking portion of a clamp for holding the tube and is locked to the periphery of the long hole 24. As the tube sandwiched between the clamps, for example, a tube such as a liquid injection tube connected to the resin container main body 12 or a breather tube (which is an element grasped in the broad sense) is used.

  In a state where the tube is clamped by the clamp attached to the long hole 24, for example, an external force in the direction of the arrow in FIG. 1 (or the direction opposite to the arrow) is likely to act on the drop-off portion 18 via the tube or the clamp. It is done. At that time, the two engaging claws 20A are arranged in a direction intersecting with the direction in which the load easily enters the drop-off portion 18, and the two engagement claws are arranged in the direction in which the load easily enters the drop-off portion 18. Compared to the case, the engaging claw 20A is less likely to come off.

  Next, the operation and effect of this embodiment will be described.

  As shown in FIG. 1 and the like, the pedestal portion 16 is attached to the outer wall surface 12A of the resin container body 12 by welding the leg portions 16B of the resin pedestal portion 16 to the outer wall surface 12A of the resin container body 12 by heat or the like. It is attached. The hole 22 of the drop-off portion 18 is extrapolated to the protruding portion 20 of the pedestal portion 16, and the engaging claw 20A is engaged with the upper edge of the hole portion 22 by elastic deformation of the engaging claw 20A. A drop-off portion 18 is attached. At that time, the engagement claw 20A is engaged with the upper edge of the hole 22 of the recess 18D in a state where the lower surface of the recess 18D of the drop-off portion 18 is in contact with the upper surface of the base portion 16. Thereby, the resin clip 14 provided with the drop-off portion 18 and the pedestal portion 16 is attached to the outer wall surface 12A of the resin container body 12 by welding, and the resin container structure 10 of the present embodiment is obtained. The resin clip 14 is used in a state where a locking portion of a clamp (not shown) holding the tube is locked in the long hole 24 of the side wall portion 18B of the drop-off portion 18.

  In the resin container structure 10, the engagement strength between the engagement claw 20 </ b> A and the upper edge of the hole portion 22 is smaller than the welding strength of the pedestal portion 16 to the outer wall surface 12 </ b> A of the resin container body 12. Thereby, when the resin clip 14 is used, for example, when a large external force as shown in the direction of the arrow in FIG. 1 acts on a clamp (not shown) attached to the elongated hole 24 of the drop-off portion 18, the engaging claw When an external force exceeding the engagement strength between 20A and the upper edge of the hole 22 is applied, the engagement between the engagement claw 20A and the upper edge of the hole 22 is disengaged, or the engagement claw 20A is broken and the drop-off portion 18 is removed. Drop off from the pedestal 16. For this reason, the load applied to the welded portion between the outer wall surface 12A of the resin container main body 12 and the pedestal portion 16 can be reduced, and in particular, it is possible to prevent a high load from being applied to the welded portion on the resin container main body 12 side. it can. Thereby, the damage etc. in the welding part of 12 A of outer wall surfaces of the resin container main body 12 and the base part 16 can be prevented.

  FIG. 7 shows a resin container structure 100 according to a comparative example. In addition, about the same component as 1st Embodiment mentioned above, the same number is attached | subjected and the description is abbreviate | omitted.

  As shown in FIG. 7, in the resin container structure 100, a resin functional component 102 having no drop-off function is welded to the outer wall surface 12 </ b> A of the resin container body 12. Specifically, in the resin functional component 102, a pedestal portion 102A, a side wall portion 18B and a wall portion 18C that are erected from the edge of the pedestal portion 102A are integrally formed, and the leg portion 16B of the pedestal portion 102A is formed. The resin container body 12 is welded to the outer wall surface 12A. In the resin container structure 100, when a function for supporting parts is added to the resin container main body 12, and it is difficult to add the function due to the shape of the resin container main body 12, the welding to the resin container main body 12 is performed. The function of supporting the article is added by welding the resin functional part 102 formed integrally with the base part 102A capable of supporting the part and the side wall part 18B having the function of supporting the part to the resin container body 12. be able to. Since the welded portion strength between the pedestal portion 102A and the resin container main body 12 has a large variation in manufacturing compared to the strength of other general material of the pedestal portion 102A, the weld between the pedestal portion 102A and the resin container main body 12 is welded. The part may be the weakest part. For this reason, when a large external force is applied to the resin functional component 102, the welded portion between the pedestal portion 102A and the outer wall surface 12A of the resin container main body 12 may become a starting point such as breakage.

  On the other hand, in the resin container structure 10 of the present embodiment, when the large external force is applied to the resin clip 14, the dropping part 18 drops from the pedestal part 16, so that the outer wall surface 12 </ b> A and the pedestal part of the resin container main body 12 are removed. The load applied to the welded portion with 16 can be reduced.

  [Second Embodiment]

  Hereinafter, the second embodiment of the resin container structure according to the present invention will be described with reference to FIGS. 5 and 6. In addition, about the same component as 1st Embodiment mentioned above, the same number is attached | subjected and the description is abbreviate | omitted.

  As shown in FIGS. 5 and 6, the resin container structure 30 rotates the drop-off portion 36 relative to the pedestal portion 34 on the side portion (left side portion in FIG. 5) of the resin clip 32. A hinge portion 38 is provided. The hinge portion 38 includes two thick portions 38A formed on one side of the edge of the pedestal portion 34 and one side of the edge of the drop-off portion 36, and a thin portion 38B formed between the thick portions 38A. It consists of The width (dimension in the width direction) of the thin wall portion 38B at the time of unfolding is set longer than the width of the thick wall portion 38A, and is set to such a length that the thin wall portion 38B is folded and the thick wall portions 38A overlap each other. . That is, the falling portion 36 and the pedestal portion 34 are relatively rotatable by folding the thin portion 38B and overlapping the thick portions 38A. In other words, the resin clip 32 is engaged with the engagement claw 20A and the hole 22 of the drop-off portion 18 from the engagement state between the engagement claw 20A of the base portion 34 and the upper edge of the hole 22 of the drop-off portion 36 by the hinge portion 38. The drop-off portion 18 is rotatable with respect to the pedestal portion 34 in a direction in which the engagement with the upper edge is released. In the present embodiment, the pedestal portion 34 is welded to the outer wall surface 12A of the resin container main body 12, and the engagement claw 20A and the upper edge of the hole portion 22 are disengaged from the pedestal portion 34 by the hinge portion 38. The drop-off portion 36 rotates in the direction.

  Further, the resin container structure 30 is configured such that the engagement strength between the engagement claw 20A and the upper edge of the hole portion 22 is smaller than the welding strength of the pedestal portion 34 to the outer wall surface 12A of the resin container body 12.

  Such a resin clip 32 is composed of a single part in which a pedestal part 34 and a drop-off part 36 are connected by a hinge part 38, and can be integrally formed with a mold. In other words, the resin clip 32 can be molded in one mold with resin. Here, “molding with one mold” means that a mold divided into a plurality of molds is used to mold the pedestal part 16 and the drop-off part 18 in a single molding process without replacing the mold. Say.

  Next, the operation and effect of this embodiment will be described.

  In the resin container structure 30, since the engagement strength between the engagement claw 20 </ b> A and the upper edge of the hole portion 22 is smaller than the welding strength of the pedestal portion 34 to the outer wall surface 12 </ b> A of the resin container body 12, it engages with the dropout portion 36. When an external force exceeding the strength is applied, the engagement between the engaging claw 20A and the upper edge of the hole portion 22 is disengaged, and the dropping portion 36 is rotated with respect to the pedestal portion 34 by the hinge portion 38, or the hinge portion 38 is moved. The broken portion 36 is broken and detached from the pedestal portion 34. For this reason, it is possible to reduce the load applied to the welded portion between the outer wall surface 12A of the resin container main body 12 and the pedestal 34, and in particular, to prevent a high load from being applied to the welded portion on the resin container main body 12 side. it can.

  Further, since the resin clip 32 can be integrally formed with a mold, the production efficiency of the resin clip 32 can be improved and the cost can be reduced.

  Further, when the locking portion of the clamp (not shown) is locked in the long hole 24 of the resin clip 32, the engagement between the engaging claw 20A and the upper edge of the hole portion 22 is prevented from being disengaged by the hinge portion 38. Alternatively, it is possible to suppress the mounting workability of the clamp.

  [Supplementary explanation of the embodiment]

  In the embodiment described above, the long holes 24 as the support portions are provided in the drop-off portions 18 and 36 of the resin clips 14 and 32. However, the configuration of the support portions of the drop-off portions is not limited to this, and a recess or a claw portion is provided. Other configurations may be used. Moreover, you may comprise the dropping part itself of a resin clip with another components, such as a clamp and a bracket. That is, the “supporting part on which the part is supported” of the present invention is intended to include the case where the supporting part itself is constituted by a part.

  In the above-described embodiment, the clamp is locked in the long holes 24 of the drop-off portions 18 and 36 and the tube is attached. However, the present invention is not limited to this configuration. For example, attachment parts such as protectors, valves, or wire harnesses are attached. It may be attached.

  In the above-described embodiment, for example, a resin container such as a washer tank can be used as the resin container main body 12.

It is a perspective view which shows the resin container structure which concerns on 1st Embodiment. (A) is a perspective view which shows the base part single-piece | unit of the resin clip which comprises the resin container structure which concerns on 1st Embodiment, (B) is a fragmentary sectional view which shows the engaging claw vicinity of a base part. (A) is the perspective view which shows the state which looked at the drop-off part simple substance of the resin clip which comprises the resin container structure which concerns on 1st Embodiment from the top, (B) is the state which looked at the drop-off part simple substance from the bottom It is a perspective view shown by. (A) is a fragmentary sectional view which shows the state which the engagement nail | claw of the resin clip shown in FIG. 1 engaged with the edge of the hole, (B) is a fragmentary sectional view in the direction orthogonal to (A). is there. It is a perspective view which shows the resin container structure which concerns on 2nd Embodiment. In the resin clip used for the resin container structure concerning a 2nd embodiment, it is a perspective view showing the state where the drop part rotated with respect to the base part by the hinge part. It is a perspective view which shows the resin container structure which concerns on a comparative example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Resin container structure 12 Resin container main body 12A Outer wall surface 14 Resin clip 16 Base part 18 Drop-off part 20A Engagement claw (engagement part)
22 Hole (engaged part)
24 Long hole (support)
30 Resin container structure 32 Resin clip 34 Pedestal part 36 Dropping part 38 Hinge part

Claims (2)

A resin container body;
A base portion welded to the outer wall surface of the resin container main body, a support portion for supporting components, and an engaged portion engaged with the engagement portion; The detachment of the pedestal from the pedestal is caused by an external force that is smaller than the welding strength of the engaging portion and the engaged portion than the welding strength of the pedestal to the resin container body and exceeds the engagement strength. A resin clip configured to include a drop-off portion configured to be possible,
The drop-off portion is rotated relative to the pedestal portion in a direction in which the engagement portion and the engaged portion are disengaged from the engaged state of the engaging portion and the engaged portion. A hinge part;
I have a,
The drop-off portion includes a bottom surface portion and a side wall portion erected from the bottom surface portion,
The resin container structure , wherein the engaged portion is formed on the bottom wall portion and the support portion is formed on the side wall portion . The engaged portion includes a hole formed in the bottom surface portion,
The pedestal portion includes a protruding portion inserted into the hole portion,
The engaging portion is an engaging claw that is formed on the protruding portion and is engaged with an edge of the hole portion.
The engagement claw is disengaged from a state in which the engagement claw is engaged with an edge of the hole in a direction intersecting with a welding surface between the pedestal and the resin container main body. 1. The resin container structure according to 1.

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