JPH058742Y2 - - Google Patents

Description

Detailed Description of the Invention [Industrial Field of Application] The present invention relates to an improvement in a locking portion used when assembling members connected via a hinge in an overlapping manner to engage both members.

[Conventional technology and problems]

For example, a fourth member is connected via a hinge and is assembled by overlapping the hinge with the hinge as a support shaft.
There is a wire harness protector as shown in the figure.

In the figure, the protector main body 1 is formed into a U-shaped cross section by a bottom wall 2 and side walls 3 and 4 erected from both ends of the bottom wall 2, and the bottom wall 2 is bent in a dogleg shape in the longitudinal direction. The wire harness is housed inside.

Further, one end of a thin flexible hinge 5 is attached to the upper part of the outer surface of the side wall 4, and a dogleg-shaped flat plate lid 6 is attached to the other end of the hinge 5, similar to the protector body 1. Ru.

A plurality of lock arms 7 are erected at both ends of the lid 6 in the longitudinal direction at positions where the hinge 5 is not provided.

The lock arm 7 has a protrusion 8 projecting outward from its tip, a tapered portion 9 on the tip side of the lock arm 7 of the protrusion 8, and a flat surface 10 substantially perpendicular to the lock arm 7 on the opposite side.

On the other hand, an engagement frame 12 having a hole 11 is provided at the upper part of the outer surface of the side walls 3 and 4, and the protrusion 8 fits into the hole 11 when the lid 6 is stacked on the protector body 1 around the hinge 5. A lock section is constructed.

As shown in FIGS. 4 and 5, in the wire harness protector equipped with the lock portion configured as described above, the wire harness is inserted into the protector body 1 with the lid 6 open, and then, The lid 6 is rotated using the hinge 5 as a pivot shaft to overlap the lid 6 on the protector body 1, and the protrusion 8 is inserted into the hole 11 so that the flat surface 10 of the protrusion 8 is placed on the surface of the engagement frame 12 to close the lid. 6 to the protector body 1.

When the lid 6 and the protector body 1 are not connected to the hinge 5 and are separated, the lid 6 is placed parallel to the overlapping surface of the protector body 1,
The protrusion 8 can be inserted along the center of the hole 11, but when the lid 6 and the protector body 1 are connected to the hinge 5, the lid 6 rotates about the hinge 5. Since the protrusion 8 reaches the insertion opening of the hole 11 on the way, as shown in FIG.
The protrusion 8 must be inserted into the hole 11 while the protrusion 8 is still inclined with respect to the overlapping surface of the protector main body 1, which makes it difficult to insert the protrusion 8 into the hole 11.

Moreover, the locus of movement of the protrusion 8 is the center point C of the hinge 5.
When rotating around , arcs 13 and 1
4 and fits into the hole 11, but the hinge 5 is a flexible thin band-like body, and the center of rotation is not necessarily the center point C of the hinge 5. , the locus of movement of the protrusion 8 is slightly deviated from the arcs 13 and 14, so the protrusion 8 is aligned with the hole 1.
1 and collides with the engagement frame 12 in many cases.

When the projection 8 is displaced slightly away from the side wall 4, as shown in FIG. The protrusion 8 is inserted into the hole 11 as it is, but as shown in FIG.
When the protrusion 8 is deviated toward the side wall 4, the protrusion 8
The tip of the protrusion 8 collides with the upper end of the side wall 4, and the protrusion 8 is inserted into the hole 11.
Since the protrusion 8 cannot be inserted into the hole 11, the protrusion 8 and the hole 11 must be aligned.

The present invention provides a lock structure that does not require such troublesome alignment and allows the lock parts to be easily connected.

[Means for solving problems]

In the present invention, two members are integrally connected via a hinge, and projections are provided at the tips of the overlapping members, which are overlapped with the hinge as a pivot axis, at the hinge side and at a position opposite to the hinge side, respectively. In the piled portion of the rosku portion consisting of a cooperative frame with a hole in which the above protrusions are fitted when the flutter is overlayed, the rotak structure of the stacking member is paid to the opposite frame on the hinge side. A guide wall was formed on the overlap surface side of the engagement frame on the hinge side by placing the guide wall farther away from the overlap surface than a certain engagement frame.

[Operation] When using the hinge as a pivot shaft to overlap both members, when the tip of the lock arm contacts the guide wall and overlaps both members, the tip of the lock arm is aligned with the hole and the protrusion is directly inserted into the hole. can be inserted into.

Of the lock part on the hinge side and the lock part located opposite to this, the lock part closest to the pivot axis of the hinge starts to come into contact with each other first, so if a guide wall is provided on this lock part, both the lock parts will come into contact with each other. Since the members are aligned, the effect of the guide wall is greater in the lock portion located on the hinge side.

〔Example〕

Embodiments of the present invention will be described with reference to the drawings.

Note that the same parts as in the conventional example are given the same reference numerals.

In FIG. 1, a protector main body 1 has side walls 3 and 4 erected on both sides of a bottom wall 2, and a lid 6 is conventionally attached to a flexible thin hinge 5 attached to the upper part of the side wall 4. Similar to the example, but side walls 3 and 4
Of the engagement frames 12A and 12B attached to each of the engagement frames 12A and 12B, the engagement frame 12B located closer to the hinge 5 is lower than the upper end of the side wall 4, and the surface of the side wall 4 is the inner surface of the hole 11 of the engagement frame 12B. Therefore, a guide wall 15 for guiding the protrusion 8 is formed on the surface of the side wall 4 above the engagement frame 12B.

On the other hand, the engagement frame 12A located far from the hinge 5 is on the upper end surface of the side wall 3, and the engagement frame 12A is located on the upper end surface of the side wall 3.
The heights of A and 12B are different.

Along with this, the lock arm 7B erected at the end of the lid 6 on the hinge 5 side is longer than the lock arm 7A erected at the opposite end, so that the lid 6 can be stacked on the main body 1. In this case, the lock arms 7A and 7A engage in the hole 11A of the engagement frame 12A and the hole 11B of the engagement frame 12B, respectively.

When the protector configured as described above is rotated from the open state of the lid 6 using the hinge 5 as a rotation axis and superimposed on the main body 1, as shown in FIG.
The rotation trajectory of the protrusion 8 at the tip of the lock arm 7B varies due to the circular arc 13, but when the protrusion 8 is overlapped so as to contact the guide wall 15, the protrusion 8 of the lock arm 7B is guided by the guide wall 15 and the hole is opened. 11B, and the overlapping position of the lid 6 is aligned, so the protrusion 8 of the lock arm 7A is aligned with the hole 11B.
Insert into A as is (see Figure 3).

Therefore, there is no need to take the trouble of aligning the lock portion as in the prior art.

It is sufficient to provide the guide wall 15 only at the lock portion that starts contacting first, that is, the lock portion located near the rotation axis of the hinge 5;
As shown in the figure, a guide wall 16 extends on the inner surface of the hole 11A at a position far from the rotation axis of the hinge 5.
It is also possible to provide a guide wall 15 and use it together with the guide wall 15.

〔effect〕

With this invention, the entire lock can be aligned by extending a guide wall that is continuous with the hole in the lock on the hinge side, so there is no need to worry about the troublesome work of aligning the lock as in the past. It became unnecessary.

Since the guide wall is easily formed by lowering the position of the engagement frame below the upper end surface of the side wall, there is no need to increase the number of parts, and the cost of the overlapping members is not affected.

[Brief explanation of the drawing]

Figures 1 to 3 show embodiments of the present invention;
The figure is a perspective view of overlapping members, and Figure 2 is AA same as above.
3 is a vertical sectional view for explaining the engagement state and engagement order of the lock portion, FIG. 4 is a perspective view of the overlapping member in the conventional example, FIG. 5 is a BB sectional view of the same as above, and FIG. The figure is a sectional view of a main part for explaining a state of misalignment in a conventional example. 1...Protector body, 2...Bottom wall, 3, 4...
...Side wall, 5...Hinge, 6...Lid, 7A, 7B...
... Lock arm, 8 ... Protrusion, 9 ... Tapered part, 10 ... Plane, 11A, 11B ... Hole, 12
A, 12B... Engagement frame, 15... Guide wall.

Claims (1)

[Claims for Utility Model Registration] Two members are integrally connected via a hinge, and the superimposed member, which is superimposed with the hinge as a pivot axis, is placed on the hinge side and at a position opposite to the hinge side, respectively. In the lock structure of the overlapping member, which has a lock portion consisting of a lock arm having a protrusion at the tip and an engagement frame having a hole into which the protrusion fits when the two are overlapped, the engagement frame on the hinge side is provided with a lock part. 2. A locking structure for overlapping members, characterized in that a guide wall is formed on the overlapping surface side of the engaging frame on the hinge side by placing it further away from the overlapping surface than the engaging frame located at the opposing position.