JP2002370285A - Attachment structure of rod and synthetic resin part - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a rod and a synthetic resin part mounted on the leading end of the rod monolithic. SOLUTION: The insertion part 6 of the rod 2 is formed to the synthetic resin part 3 and the deep side of the insertion part 6 is made wide to provide a locking piece 7, which is obliquely protruded to the deep side of the insertion part 6 from the inner surface thereof, in the deep side of the insertion part 6. On the other hand, the locking recessed part 8 of the leading end of the locking piece 7 is formed to the side surface of the leading end of the rod 2 and the position control part 10 of the leading end of the rod 2 is provided to the deep part of the insertion part 6. The upward fine movement of the synthetic resin part 3 to the rod 2 is prevented or minimized by the position control part 10 and the downward fine movement of the synthetic resin part 3 is prevented with respect to the rod 2 by the locking piece 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for attaching a synthetic resin component to a rod tip.

[0002]

2. Description of the Related Art Conventionally, as a typical example of a synthetic resin part attached to the tip of a rod, there is an opening / closing body support for holding an opening / closing body such as an engine hood of an automobile in an open state.
The support for the opening / closing body is disclosed in Japanese Utility Model Publication No. 8-2045 as "a support rod and a plastic support member attached to the distal end side of the support rod. An engaging portion is provided on the support rod in a direction around the axis of the support rod, and the bearing member has a receiving portion that comes into contact with a peripheral surface of a hole edge of an engaging hole provided in the opening / closing body. An insertion portion which is integrally provided on the receiving portion so as to protrude and is inserted into the engagement hole, and a mounting cylinder portion which is integrally provided downward from the receiving portion and to which a support rod is attached. An engagement projection that engages with a peripheral surface of a hole edge of an engagement hole of the opening / closing body is protruded toward a tip end of the insertion portion toward a downward direction in the undulating direction of the support. The inside of the mounting cylinder is Engaging piece to be engaged with the engagement portion of the support rod to be inserted into the mounting cylinder portion Yes to protrude, and, to the mounting cylinder portion and the support rod,
A support for an opening / closing body provided with a rotation preventing means for preventing the two members from rotating together "is described. The support member of the support for the opening / closing body is immediately assembled by inserting the support rod, and the orientation of the assembly can be maintained as it is by the insertion and assembly.

[0003]

However, in the above-mentioned opening / closing body support, even if the mounting direction of the support member (synthetic resin component) with respect to the support rod (rod) can be maintained, it is slightly moved vertically. Thus, there is a problem to be solved, such as lack of integration between the two members.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in consideration of the problem that a support rod (rod) and a support member (synthetic resin part) are not integrated with each other based on the above-mentioned prior art, and therefore, the depth of the insertion portion of the rod in the synthetic resin part is reduced. The insertion side is widened, and a locking piece is provided in the back side of the insertion portion, which protrudes obliquely to the back side from the inner surface on the back side of the insertion section. By forming a concave portion, by providing a position regulating portion that is in contact with or near the tip of the rod at the back of the insertion portion,
The above problem is solved by preventing or slightly suppressing the upward fine movement of the synthetic resin component with respect to the rod by the position regulating portion, and preventing the downward fine movement of the synthetic resin component with respect to the rod by the locking piece.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an enlarged view of a main part of the opening / closing body support, and FIG. 2 is an enlarged view of a cross section XX of FIG. 1, a rod 2 having a lower end rotatably attached to a body side of an automobile so as to be able to undulate, and a distal end portion of the rod 2 as in the prior art. And a bearing member 3a, which is a synthetic resin component 3 mounted on the support member 3a. The upper part of the support member 3a is
The insertion portion 4 is inserted into the engagement hole B of the
A collar-shaped receiving portion 5 is provided around the lower part of the seat. In addition, seat 5
Is formed to be larger than the engagement hole B so as to receive the periphery of the engagement hole B in the opening / closing body A.

The insertion portion 6 of the rod 2 formed on the support member 3a is widened so that the depth of the insertion portion 6 is widened to be a housing portion 6a at the tip of the rod 2, and the entrance side is a fitting portion 6b of the rod 2.
In addition, the insertion portion 4 is formed in a frame shape by opening the accommodation portion 6a on both sides of the insertion portion 4. Bearing member 3a
In the accommodating portion 6a, there is provided a locking piece 7 projecting obliquely to the inner side of the insertion portion 6, and the locking piece 7 and the support member are provided.
On the other hand, a locking recess 8 at the tip of a locking piece 7 is formed on the distal side surface of the rod 2, and the locking piece 7 facing the base end side of the rod 2 is formed in the locking recess 8. The contact surface 9 is formed at the tip of. Further, a pressing member 10a, which is a position restricting portion 10 at the distal end of the rod 2, is provided in the inner part of the housing portion 6a, and the pressing member 10a and the supporting member 3a are integrally formed. , The pressing member 10a facing the back side of the accommodation portion 6a
The contact surface 11 of the present embodiment is the tip end surface of the rod 2. Further, a sliding inclined surface 12 is formed at the tip end of the rod 2.

As shown in FIG. 1, the pressing member 10a of this embodiment has a compression elasticity in which the central portion of a downwardly arcuate plate member 10b and the back portion of the insertion portion 6 are integrated via a connecting member 10c. It is a body, but is not limited to such a form.For example, although not shown, it may be a bent plate-shaped compression elastic body provided in the back part in the accommodation portion 6a, or a compression elastic body separate from the support member 3a, for example, a compression member. It may be a compression elastic body such as a spring, or may be a simple projection integrally projecting from the back of the insertion section 6. Further, the contact surface 11 of the pressing member 10a may be a surface facing the depth side of the insertion portion 6 in the step provided on the distal end side of the rod 2.

As shown in FIG. 2, a projection 13 is formed on the side of a portion inside the insertion portion 6b of the insertion portion 6 of the rod 2, and a projection is formed on the inner peripheral surface of the insertion portion 6b of the insertion portion 6. The fitting groove 1 of the portion 13 may be formed. Also, as shown in FIGS. 1 and 2, the protrusion 13 is a portion that bulges out on both sides by crushing an intermediate portion of the rod 2.

As shown in FIG. 1, the insertion portion is inserted into the support member 3a such that the portion of the insertion portion 6 of the rod 2 opposite to the locking recess 8 is in close contact with the inner peripheral surface of the insertion portion 6. 6 is desirably formed.

In another embodiment of the opening / closing body support 1 shown in FIGS. 3 and 4, the opening / closing body support 1 shown in FIGS.
And a support member 3a, which is a synthetic resin part 3 having an insertion portion 4 and a receiving portion 5, and a locking piece 7 is inserted into a housing portion 6a of the support member 3a.
A locking recess 8 at the distal end of the locking piece 7 is formed on the front end side surface, and the contact surface 9 in the locking recess 8 is a guiding inclined surface, and the position regulating portion 10 at the back in the accommodation portion 6a. The pressing member 10
a, a simple convex portion 10d having a convex curved surface, and a flat surface on the side of the distal end of the rod 2 opposite to the locking concave portion 8.
15 and at the insertion portion 6 of the support member 3a,
A flat surface 16 closely contacting the flat surface 15 is formed. or,
As shown in FIG. 4, the flat surface 15 of the rod 2 is formed by crushing the tip of the rod 2, and a portion swelling on both sides of the rod 2 due to the crushing is formed by extending the protrusion 13. It is formed on a line. Further, a chamfer 17 is formed at the tip end of the rod 2. In addition, the tip end surface of the rod 2
The position restricting portion 10 at the back of 6a, that is, the convex portion 10d is brought into contact with or in proximity to the convex portion 10d.

In the above embodiment, the opening / closing body support 1 is described as an example. However, the present invention is not limited to such a product. Any product can be applied as long as it is a product in which the rod 2 and the synthetic resin component 3 are integrated into the product 6 and integrated.

Next, the process of attaching the synthetic resin component 3 to the tip of the rod 2 will be described in detail. In the process of inserting the tip of the rod 2 into the insertion portion 6 of the synthetic resin part 3, first, the sliding inclined surface 12 at the tip of the rod 2 comes into contact with the locking piece 7 and the locking piece 7 is tilted. Next, the rod 2 advances while the distal end of the locking piece 7 slides on the outer peripheral surface, and the contact surface 11 on the distal end side of the rod 2, that is, the distal end surface of the rod 2 contacts the pressing member 10a. The pressing member 10a is deformed. Next, when the tip of the locking piece 7 is located in the locking recess 8 and comes off the peripheral surface of the rod 2, the locking piece 7 returns to the initial position by the elastic restoring force, and the tip of the locking piece 7 engages. It fits in the stop recess 8. Finally,
The rod 2 is pushed down by the elastic restoring force of the pressing member 10a, and the tip of the locking piece 7 is brought into contact with the contact surface 9 of the locking recess 8, and the synthetic resin component 3 is mounted and fixed to the tip of the rod 2. . In addition, the sliding inclined surface 12 at the tip of the rod 2 abuts on the locking piece 7 to prevent the locking piece 7 from being scraped when the synthetic resin component 3 is mounted.

In the process of inserting the rod 2 into the insertion portion 6 of the synthetic resin part 3, after the tip of the rod 2 comes into contact with the locking piece 7,
The locking piece 7 is slightly deformed, and the side of the synthetic resin component 3 is elastically deformed so as to bulge outward, so that the tip of the locking piece 7 comes into sliding contact with the outer peripheral surface of the rod 2. 2 comes into contact with the pressing member 10a on the back side of the insertion portion 6 so that the pressing member 10
a is deformed and elastically deforms so that the tip of the synthetic resin part 3 swells outward, and very little deformation remains in the synthetic resin part 3 after being attached to the rod 2, and its elastic restoring force is reduced by the locking piece. Acting on the rod 2 via the pressing member 7 and the pressing member 10a, the rod 2 and the synthetic resin part 3 are further firmly integrated.

In the other embodiment shown in FIGS. 3 and 4, first, the chamfer 17 at the tip of the rod 2 comes into contact with the locking piece 7 and the locking piece 7 is lowered. Next, when the rod 2 advances with the tip of the locking piece 7 slidably in contact with the outer peripheral surface thereof and the tip of the locking piece 7 is located in the locking recess 8 and comes off the peripheral surface of the rod 2,
When the locking piece 7 is about to return to the initial position by the elastic restoring force, the rod 2 advances while the tip of the locking piece 7 is in sliding contact with the contact surface 9, and finally the tip of the locking piece 7 is engaged. The distal end of the rod 2 is fitted into the stop concave portion 8 and the tip of the rod 2 is positioned at the position regulating portion 10, that is, the convex portion.
Then, the synthetic resin part 3 is mounted and fixed to the tip of the rod 2 in a state of contacting or approaching 10d.

In the process of inserting the rod 2 into the insertion portion 6 of the synthetic resin part 3, after the tip of the rod 2 comes into contact with the locking piece 7,
While the locking piece 7 is slightly deformed, the side of the synthetic resin part 3 is elastically deformed so as to bulge outward, and the tip of the locking piece 7 comes into sliding contact with the outer peripheral surface of the rod 2. Very little deformation remains in the synthetic resin part 3 after being mounted on the rod 2, and its elastic restoring force acts on the rod 2 via the locking piece 7 and the flat surface 16, so that the rod 2 and the synthetic resin part 3 are further strengthened. It is integrated.

Next, the operation of the structure for mounting the rod and the synthetic resin component according to the present invention will be described. In the first embodiment, the rod 2 is pushed down by the elastic restoring force of the pressing member 10a and / or the tip of the synthetic resin part 3, and in the second embodiment, the tip of the rod 2 is Are in contact with or in proximity to each other to prevent or minimize a slight upward movement of the synthetic resin part 3 with respect to the rod 2, and that the tip of the locking piece 7 is engaged with the locking recess 8 of the rod 2. As a result, the vertical movement of the synthetic resin component 3 with respect to the rod 2 is completely prevented or extremely suppressed.

The locking piece 7 and the pressing member 10a in the first embodiment, and the locking piece 7 in the second embodiment, for example, when the opening / closing body A is openly supported by the opening / closing body support, as shown in FIG. Since the plastic part 3 is formed so as not to be easily deformed when a load is applied from above, a certain degree of strength is required. Therefore, the insertion part 4 is attached to the back side of the insertion part 6, that is, the accommodation part 6a. If the opening is formed on both sides of the insertion portion 4 to form a frame, the deformation of the insertion portion 4 is facilitated, and the locking piece 7 and the pressing members 10a,
Further, the synthetic resin component 3 can be mounted on the rod 2 without significantly deforming the locking piece 7 in the second embodiment.

[0018]

In summary, the present invention is to widen the back side of the insertion portion 6 of the rod 2 in the synthetic resin part 3 so that the inside of the insertion portion 6 is deeper than the inner surface of the back side of the insertion portion 6. Since the locking piece 7 that projects obliquely is provided, and the locking recess 8 at the tip of the locking piece 7 is formed on the tip side surface of the rod 2, the engagement structure between the tip of the locking piece 7 and the locking recess 8 is provided. Thereby, the removal of the synthetic resin component 3 from the rod 2 can be prevented. Further, since the position restricting portion 10 of the tip of the rod 2 is provided at the back of the insertion portion 6, the distal end of the rod 2 is positioned by the position restricting portion 10. Can be prevented or suppressed to a very small amount. Also, the pressing member
10a is in contact with the distal end surface of the rod 2, and the distal end of the locking piece 7 is in contact with the upper part of the locking recess 8, so that the assembly direction of the synthetic resin component 3 with respect to the rod 2 can be maintained.
Therefore, it is possible to provide a product having excellent integration between the rod 2 and the synthetic resin component 3.

Since the position restricting portion 10 is a pressing member 10a, which is a compression elastic body, formed integrally with the synthetic resin part 3, the pressing member 10a can be elastically deformed, and the tip of the rod 2 can be connected to the pressing member 10a. Can be inserted deeper than the abutment position, so that the tip of the locking piece 7 and the locking recess 8 can be engaged without greatly deforming the synthetic resin part 3, and the pressing member 10a and the rod 2 tip surface and locking piece 7
The degree of close contact between the contact portion of the locking recess 8 and the locking recess 8 is increased by the elastic restoring force of the pressing member 10a, so that the integration of the synthetic resin component 3 with the rod 2 can be further improved.

Since the insertion portion 4 is formed in a frame shape by opening the back side of the insertion portion 6 on both sides of the insertion portion 4, the insertion portion 4 can be easily deformed.
The work of attaching the synthetic resin component 3 to the rod 2 can be facilitated.

A projection 13 is provided on the tip side surface of the rod 2 and a fitting groove 14 of the projection 13 is formed on the inner surface of the synthetic resin part 3 at the entrance side of the insertion portion 6.
A flat surface 15 is formed on the side of the tip end opposite to the locking recess 8, and the insertion portion 6 of the synthetic resin part 3 is
Since the flat surface 16 which is in close contact with the flat surface 15 is formed, fine rotation of the synthetic resin component 3 with respect to the rod 2 can be prevented, so that the integrity of the rod 2 and the synthetic resin component 3 can be further improved. And its practical effects are enormous.

[Brief description of the drawings]

FIG. 1 is an enlarged view of a main part of an opening / closing body support.

FIG. 2 is an enlarged view of a XX section of FIG. 1;

FIG. 3 is an enlarged view of a main part of an opening / closing body support according to another embodiment.

FIG. 4 is an enlarged view of a YY cross section of FIG. 3;

[Explanation of symbols]

 2 Rod 3 Synthetic resin part 4 Insertion part 6 Insertion part 7 Locking piece 8 Locking concave part 10 Position control part 10a Pressing member 13 Projection part 14 Fitting groove 15 Flat surface 16 Flat surface

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3D004 AA14 BA02 CA13 CA31 DA01 4F211 AD24 AG23 AH17 TA06 TC08 TC11 TD13 TD14 TD16 TH18 TN78 TN79

Claims (5)

[Claims] 1. An insertion part for a rod in a synthetic resin component, the back side of the insertion part being widened, and a locking piece projecting obliquely to the back side from the inner surface on the back side of the insertion part is provided in the back side of the insertion part, On the other hand, a mounting structure for a rod and a synthetic resin component, wherein a locking concave portion at the distal end of a locking piece is formed on the side surface of the distal end of the rod, and a position regulating portion at the distal end of the rod is provided at the back of the insertion portion. 2. The mounting structure for a rod and a synthetic resin component according to claim 1, wherein the position restricting portion is a pressing member that is a compression elastic body and is formed integrally with the synthetic resin component. 3. The mounting structure for a rod and a synthetic resin part according to claim 1, wherein the insertion portion is formed in a frame shape by opening a rear side of the insertion portion on both sides of the insertion portion. . 4. A rod is provided with a projecting portion on a side surface thereof, and a fitting groove of the projecting portion is formed on an inner surface of a synthetic resin component at an entrance side portion of an insertion portion.
4. A mounting structure for the rod and the synthetic resin component according to 2 or 3. 5. A flat surface is formed on the side of the distal end of the rod opposite to the locking recess, and a flat surface closely contacting the flat surface is formed in an insertion portion of the synthetic resin component. Item 5. A mounting structure for a rod and a synthetic resin component according to item 1, 2, 3, or 4.