JPH099462A - Lock mechanism of holder - Google Patents

Abstract

PURPOSE: To completely close an opening side of a main body with a cover body and to reduce the size of an insertion space by introducing automatically a lock piece of the cover body in a notch groove opened in other side wall of the main body, and interlocking a lock claw with a holding claw on a frame wall side. CONSTITUTION: A wide lock claw 13 of a C-shaped cover body 2 is only inserted in an insertion space 7 partitioned by a U-shaped frame wall 6 while rotating the cover body to the main body 1 side through a thin hinge section 3. A lock piece 12 of the cover body 2 is automatically introduced in a notch 11 on the main body 1 side by the guidance thereof, and the lock claw 13 is automatically interlocked with a holding claw 10 by deflection outward an elastic piece 8. By the constitution, the opening side of the main body 1 can be completely closed with the cover body 2. Since size of the insertion space 7 is sufficient by an interlocking margin between the lock claw 13 and holding claw 10, these is no space restriction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a lock mechanism of a holder for holding wire harnesses and rods.

[0002]

2. Description of the Related Art As a conventional locking mechanism for this type of holder, there is one disclosed in Japanese Utility Model Laid-Open No. 6-66234.
The conventional lock mechanism is premised on a holder including a main body and a cover body whose opposite side edges are openably and closably connected to each other through a thin hinge portion, and defines an insertion space on the outer surface of the other side wall of the main body. The U-shaped frame wall and the receiving claw having an upward inclined surface are integrally provided on the lower side of the frame wall, while the lock claw having the downward inclined surface on the inner surface is formed on the other side edge of the cover body. The lock piece is integrally provided.

In actual use, a wire harness or the like is housed inside the main body, and the lock piece of the cover body is defined by the frame wall while rotating the cover body toward the main body side through the thin hinge portion. When inserted into the formed insertion space, outward bending of the frame wall is obtained, and the lock claw of the lock piece is elastically locked to the receiving claw formed below the outer surface of the other side wall of the main body. Therefore, as a result, the opening side of the main body is completely closed by the cover body, and the wire harness or the like is held inside the holder.

On the contrary, when releasing the holding of the wire harness etc. by the holder, in the outer lower part of the frame wall,
While bending the lock piece, if you remove the lock claw of the lock piece from the claw, you can open the opening of the main body, so
As a result, the holding state of the wire harness or the like can be released.

[0005]

However, in the conventional locking mechanism, the lock piece of the cover body is inserted into the insertion space defined by the outer surface of the other side wall of the main body and the inner surface of the frame wall having a U-shape. Since the lock claw of the lock piece is locked to the receiving claw on the main body side in such an inserted state, the above-mentioned insertion space is at least added to the wall thickness of the lock piece. Since the locking allowances of the lock claw and the receiving claw are required together, accordingly, the frame wall naturally tends to largely project outward from the other side wall outer surface of the main body.

For this reason, when the holder is used, a space is required to allow the existence of the frame wall projecting outward. Therefore, depending on the environmental conditions of the surroundings, the holder may be restricted due to the space limitation. Could be difficult or impossible to use. In the conventional lock mechanism, a receiving claw is formed on the outer surface of the other side wall of the main body, and a lock claw is formed on the inner surface of the lock piece of the cover body.
On the contrary, even when the receiving claw is formed on the inner surface side of the frame wall and the lock claw is formed on the outer surface side of the lock piece, it goes without saying that the frame wall largely projects from the outer surface of the other side wall of the main body by the same reason. Yes.

Further, under the conventional locking mechanism, if the locking pawl can be manually released from the receiving pawl, the door can also be operated by flexing the frame wall to the outside while the locking piece is released. It is undeniable that it is difficult to release the holding state of the wire harness and the like by the holder because the lower edge must be pushed upward with the finger.

Further, in FIGS. 9 to 13 of the above-mentioned publication showing the conventional locking mechanism, the locking claw of the locking piece is directly engaged with the lower end edge of the frame wall so that the frame wall is projected outward. Although a structure that suppresses the amount is disclosed, in this case, as is clear from the description of the publication, it is actually extremely difficult to release the lock between the lock claw and the receiving claw. , Not suitable for practical use.

[0009]

The present invention was developed in order to effectively solve the problems of the conventional locking mechanism, and one opposing side edge is connected via a hinge portion. Assuming a lock mechanism of a holder including a main body and a cover body, a U-shaped frame wall defining an insertion space is provided on the outer surface of the other side wall of the main body, and a receiving claw is formed on the inner surface of the frame wall. A notch groove is formed in the other side wall of the main body facing the frame wall, and a lock piece fitted in the notch groove is provided on the other side edge of the cover body, and the lock wall is provided on the outer surface of the frame wall. The structure that forms the lock claw that locks with the receiving claw is adopted.
In this case, the lock claw formed on the outer surface of the lock piece is made wider than the lock piece, or a flexible elastic piece is provided on the frame wall, and the lock piece is locked on the inner surface of the elastic piece. It is preferable to form a receiving claw that locks the claw.

[0010]

Therefore, according to the present invention, a wire harness or the like is housed inside the main body, and the lock pawl is defined by the frame wall while the cover body is rotated toward the main body side through the hinge portion. When inserted into the insertion space, the lock piece of the cover body is automatically guided into the notch groove formed on the other side wall of the main body, and the lock claw formed on the outer surface of the lock piece is attached to the frame wall side. Since it is engaged with the receiving claw, the opening side of the main body is completely closed by the cover body, and the wire harness or the like is securely held inside the holder.

Moreover, when the wire harness or the like is held, the lock piece on the cover body side is as in the conventional case.
It is not located in the insertion space defined between the outer surface of the other side wall of the main body and the inner surface of the frame wall, but is located in the notch groove formed in the other side wall of the main body, and its wall thickness is absorbed. Therefore, unlike the conventional case, the size of the insertion space is only the locking margin of the lock claw and the receiving claw. So, in response,
The amount of protrusion of the frame wall to the outside can be reduced by the thickness of the lock piece, so that the range of use can be effectively expanded.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to an illustrated embodiment, and the lock mechanism according to the embodiment will also be described with reference to FIGS.
As shown in FIG. 2, a holder made of synthetic resin having a U-shaped main body 1 and a C-shaped cover body 2 whose opposite side edges 1a and 2a are openably and closably connected to each other via a thin hinge portion 3 is provided. Presuppose In the present embodiment, a pair of rails 4 and projections 5 for fixing the holder itself to a mounting member such as a bracket are provided on the bottom surface side of the main body 1, but the present invention is not limited to this. These rails 4 are not limited
It is possible to use anchor-shaped locking legs or other known fixing means in place of the protrusions 5 or the like, but the presence of the fixing means is not always required.

In the present embodiment, the main body 1 is
On the outer surface of the other side wall 1b, a U-shaped frame wall 6 which cooperates with each other to define the insertion space 7 is integrally provided, and the frame wall 6 having the U-shape is bent at the center of the rear surface. A possible elastic piece 8 is provided through a pair of slits 9 whose lower end side is open, and a receiving claw 10 having an upward inclined surface for engaging with a lock claw of a lock piece described later is integrally formed on the inner surface of the elastic piece 8. It is said to be configured. In addition to this, on the other side wall 1b of the main body 1 facing the frame wall 6, a notch groove 11 into which a lock piece to be described later is fitted is opened in the height direction thereof, and both side portions of the notch groove 11 are formed. The height dimension is set to be lower than that of the frame wall 6.

On the other hand, a lock piece 12 having a width smaller than the width of the cutout groove 11 is integrally provided at the other side edge 2b of the cover body 2 corresponding to the cutout groove 11, and the tip end portion of the lock piece 12 is provided. A lock claw 13 having a downward inclined surface that is wider on both sides than the lock piece 12 is formed integrally on the outer surface. Unlike the lock piece 12, this wide locking claw 13 is inserted into the insertion space 7 defined by the frame wall 6, and its width is larger than that of the frame wall 6. Needless to say, it is getting smaller.

Therefore, if the holder with a lock mechanism having such a structure is used to temporarily hold the wire harness 14, the wire harness 14 is housed inside the main body 1 having a U shape, and C While rotating the cover body 2 having a character shape toward the main body 1 side through the thin hinge portion 3, only the wide lock claws 13 thereof are arranged along the outer surfaces of both side portions of the cutout groove 11, and the U-shaped frame is formed. When inserted into the insertion space 7 defined by the wall 6, this serves as a guide, as shown in FIG.
The lock piece 12 of the cover body 2 is the cutout groove 11 on the main body 1 side.
Will be automatically guided to.

Then, when the lock piece 12 is fitted into the notch groove 11, this time, the elastic piece 8 provided on the frame wall 6 is flexed outward, and the lock piece 12 is widened. The locking claw 13 will pass the receiving claw 10, but at the time when it passes, the elastic piece 8 returns to the original position and the locking claw 13
Since the receiving claw 10 and the receiving claw 10 are automatically locked,
As shown in FIG. 4, the opening side of the main body 1 is completely closed by the cover body 2, and the wire harness 14 is securely held inside the holder. In addition, the cutout groove 11 of the lock piece 12
As described above, since the elastic piece 8 is flexed outward through the slit 9 when it is fitted into the inside, a large force is not required.

Further, in the above-mentioned holding state of the wire harness 14, the lock piece 12 on the cover body 2 side is, as shown in the figure, the outer surface of the other side wall 1b of the main body 1 and the inner surface of the frame wall 6 as in the conventional case. It is not located in the insertion space 7 defined between them, but is located in the notch groove 11 formed in the other side wall 1b of the main body 1, and the wall thickness is absorbed, so Under the embodiment, unlike the conventional case, the size of the insertion space 7 is sufficient for the locking allowance of the lock claw 13 and the receiving claw 10, and accordingly, the size of the insertion space 7 is outwardly of the frame wall 6. Inevitably, the protrusion amount of can be reduced only by the thickness of the lock piece 12 for the first time. Therefore, as compared with the conventional one, the situation where space is limited is reduced,
The range of use can be greatly expanded.

Further, the lock claw 13 itself, together with its wide shape, is received in the insertion space 7 defined by the frame wall 6 in the receiving claw 1.
Since it is locked with 0, even if an external force in the lateral direction is applied to the lock claw 13, there is no fear of rattling in the insertion space 7 or accidental disengagement from the receiving claw 10. After holding the wire harness 14, although not specifically shown, the rail 4 and the protrusion 5 provided on the bottom surface side of the main body 1 described above are used to move the holder itself to the mounting member side. If fixed, the wire harness 14 will be positioned on the spot while being held.

On the contrary, the wire harness 1 by the holder
If it becomes necessary to release the holding of No. 4 in FIG.
As shown in FIG.
When the lower end side of the elastic piece 8 forming 0 is forcibly bent outward through the slit 9, the receiving claw 10 is immediately disengaged from the lock claw 13, and the lock piece 12 is accompanied by the wide lock claw 13. Since the reaction force of the thin hinge portion 3 is obtained and the thin hinge portion 3 is automatically pulled out from the notch groove 11, the opening of the main body 1 is opened, and the work of releasing the holding of the wire harness 14 can be streamlined.

In the above embodiment, a single lock mechanism is incorporated in a short holder, but the present invention is
The present invention is not limited to this, and it is also optional to incorporate a plurality of locking mechanisms at fixed intervals in a protector type long holder according to the implementation, and,
The object to be held is not limited to the wire harness 14, and other rods or the like may be used as long as they need to be held.

[0021]

As described above, according to the present invention, by adopting the above-mentioned configuration, the outward projection amount of the frame wall provided on the main body side can be reduced.
Since it is possible to reduce the thickness of the lock piece by the thickness of the lock piece, the situation in which space is limited is inevitably reduced compared to the conventional one, and the range of use can be greatly expanded.

In this case, if the lock claw formed on the outer surface of the lock piece is wider than the lock piece, the lock piece of the cover body can be guided to the cutout groove of the main body with good guideability. Therefore, the fitting work into the notch groove is also good. In addition, if the receiving claw that locks the lock claw of the lock piece is formed on the inner surface of the flexible elastic piece provided on the frame wall, the lower end side of the elastic piece is removed by the tip of a tool or the like. Just by forcibly bending it toward the side, the locking between the receiving claw and the lock claw is released, and the lock piece together with the lock claw receives the reaction force of the hinge part and is automatically pulled out from the inside of the notch groove. The work of releasing the holding of the harness and the like becomes extremely easy.

[Brief description of drawings]

FIG. 1 is an overall perspective view showing a holder with a lock mechanism according to the present embodiment in a developed state.

2A is a plan view of the holder, FIG. 2B is a right side view of the holder, and FIG. 2C is a left side view of the holder.
FIG. 2D is a sectional view taken along the line AA of FIG. 2A.

FIG. 3 is an explanatory view of a main part for explaining a step of fitting a lock piece into a cutout groove.

FIG. 4 is a cross-sectional view showing a held state of the wire harness.

FIG. 5 is a cross-sectional view showing a state where the holding of the wire harness is released.

[Explanation of symbols]

 1 main body 1a same side edge 1b same side wall 2 cover body 2a same side edge 2b same side edge 3 thin hinge 6 frame wall 7 insertion space 8 elastic piece 9 slit 10 receiving claw 11 notch groove 12 locking piece 13 locking claw 14 wire harness

Claims (3)

[Claims] 1. A lock mechanism for a holder comprising a main body and a cover body whose opposite side edges are connected to each other via a hinge portion, the U-shape defining an insertion space on the outer surface of the other side wall of the main body. A frame wall having a shape is provided, a receiving claw is formed on the inner surface of the frame wall, and a notch groove is formed in the other side wall of the main body facing the frame wall, while the notch groove is formed in the other side edge of the cover body. A lock mechanism for a holder, characterized in that a lock piece to be fitted into the lock piece is provided, and a lock claw that engages with the receiving claw of the frame wall is formed on an outer surface of the lock piece. 2. The lock mechanism for a holder according to claim 1, wherein the lock claw formed on the outer surface of the lock piece is wider than the lock piece. 3. A flexible elastic piece is provided on the frame wall, and a receiving claw for locking the lock claw of the lock piece is formed on the inner surface of the elastic piece. Holder locking mechanism.