JP2007306777A - Holder for mounting on car - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To strengthen lock bonding power in a holder for mounting on a car which comprises a body and a lid body, such as a protector, to be sheathed on wire harness. <P>SOLUTION: A peripheral wall end face of the body and a peripheral wall end face of the lid body are formed as a joining face, and on a peripheral wall outer face along the peripheral wall end face of the body, lock frames including coupling frame portions are projectively provided at ends of both side frame portions; while on a peripheral wall outer face along the peripheral wall end face of the lid body, lock claws are projectingly provided wherein the pawls are inserted and fitted from an inner face side to the coupling frame portions of the lock frames. The lock claws are shaped, to include flat fitting faces and inclined outer faces, wherein in the flat fitting faces, the claws are brought into contact with and fitted to an inner face of the coupling frame portions, while the inclined outer faces are inclined toward its end. The peripheral wall end faces of the body and the lid body which are jointed to each other are formed as inclined end faces, which are inclined in a direction opposite to the inclining direction of the inclined outer face of the lock claws. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a vehicle-mounted container, and is particularly preferably used as a protector that covers and protects a wire harness routed in an automobile and makes it difficult to unlock the main body and a lid.

Conventionally, a load that is externally mounted on a wire harness routed in an automobile, protects the wires of the wire harness from external interference materials, and regulates the direction of the wiring, and a load in which the electric power from the battery is mounted on the automobile. A container made of a resin molded product is used as a case or the like of an electric junction box to be distributed to the container.
Such a vehicle-mounted container is generally composed of a main body and a lid, and in the protector, the lid is locked and coupled with the wire harness inserted in the main body. The lid is lock-coupled in a state in which an internal circuit composed of a bus bar or the like is accommodated therein.

For example, in the lock structure of the main body and the lid body in the protector 1 shown in FIG. 8A, the lid body is opposed to the lock frame 2c provided on the outer surface of the side wall 2b standing from both sides of the bottom wall 2a of the main body 2. The lock claw 3c provided on the outer surface of the side wall 3b suspended from both sides of the upper wall 3a of the 3 is inserted and locked to lock the main body 2 and the lid 3 together.
At this time, the front end surface 2d of the side wall 2b of the main body 2 and the front end surface 3d of the side wall 3b of the lid 3 are arranged to face each other, and the front end surfaces 2d and 3d are flat surfaces orthogonal to the inner surfaces of the side walls 2b and 3b. ing.

  However, in the protector 1 having the above-described configuration, since the tip surfaces 2d and 3d of the side walls 2b and 3b are flat surfaces, a pressing force is applied to the side wall 3b of the lid 3 from the outside as shown in FIG. Then, there is a problem that the side wall 3b easily bends inward of the protector 1 and the lock is easily released. Moreover, even if a pressing force is applied to the side wall 2b of the main body 2 from the inside due to the swelling of the wire harness from the inside, there is a problem that the side wall 2b is bent outward from the protector 1 and the lock is easily released.

  With respect to the above problem, Japanese Patent Laid-Open No. 6-86426 (Patent Document 1) provides a protector 4 shown in FIG. In the protector 4, the side wall 6 b provided with the lock claw 6 c of the lid 6 is overlapped with the outer surface of the side wall 5 b provided with the lock frame 5 c of the main body 5. With this configuration, the side wall 6b is prevented from bending inward even when it receives a pressing force from the outside, and the side wall 5b is not bent outward even when receiving a pressing force from the inside. .

  However, in the structure of the protector 4 provided in Patent Document 1, the side wall 5b of the main body 5 is bent before the main body 5 and the lid body 6 are locked, and the side wall 5b of the main body 5 and the side wall 6b of the lid body 6 are There is a problem that the lock coupling work is difficult to perform due to interference. Further, there is a problem that the lock portion protrudes outward by an amount corresponding to the overlap of the side wall 5b of the main body 5 and the side wall 6b of the lid body 6, thereby increasing the size.

JP-A-6-86426

  The present invention has been made in view of the above-described problem, and in a vehicle-mounted container made of a resin molded product such as a protector or an electrical junction box case mounted on a wire harness routed in an automobile, the lock coupling force is enhanced. At the same time, it is an object to facilitate lock coupling.

In order to solve the above-mentioned problems, the present invention is a vehicle-mounted container comprising a main body and a lid body that is locked to the main body, and made of a resin molded product that houses a wire harness or an electrical component,
The peripheral wall end surface of the main body and the peripheral wall end surface of the lid body serve as a joint surface, and a lock frame provided with a connecting frame portion at the tip of both side frame portions is provided on the outer peripheral surface of the peripheral wall along the peripheral wall end surface of the main body. While
A lock claw that is inserted and locked from the inner surface side to the connection frame portion of the lock frame protrudes from the outer surface of the peripheral wall along the peripheral wall end surface of the lid, and the lock claw contacts the inner surface of the connection frame portion. It has a shape with a flat locking surface to be contacted and locked, and an inclined outer surface inclined toward the tip,
The vehicle body, wherein the main body, the lid, and the peripheral wall end surface to be joined to each other are inclined end surfaces inclined in a direction opposite to the inclination direction of the inclined outer surface of the lock claw, is provided.

  The in-vehicle container of the present invention accommodates an internal circuit including a protector sheathed on a wire harness routed in an automobile, a bus bar formed from a conductive metal plate, etc., and distributes power to a load mounted on the automobile. It is used as a case of an electrical junction box.

According to the above configuration, the peripheral wall end surface of the main body to be joined and the peripheral wall end surface of the lid body are inclined in a direction opposite to the inclination direction of the inclined outer surface of the lock claw in a state where the main body and the lid body are locked and coupled. Therefore, even if external pressure is applied to the peripheral wall near the lock claw or the lock claw itself, a load is applied in the direction in which the joined peripheral wall end surfaces are more strongly joined, and the peripheral wall does not easily bend to the inside side and locks. Is hard to come off.
When a larger load is applied and the peripheral wall of the lid tries to bend inward, the peripheral wall end surface is lifted upward along the inclined surface of the peripheral wall end surface of the main body, and the flat locking surface of the lock claw is connected to the lock frame. It is pressed against the inner surface of the frame. Thereby, the lock | rock coupling | bonding force of a main body and a cover body can be raised, and it can prevent that the lock | rock of a main body and a cover body remove | releases.
Even when a pressing force is applied to the peripheral wall of the main body from the inside, it is possible to prevent the lock from being released by the same action.
Further, when the main body and the lid body are locked and coupled, when the lock claw of the lid body abuts on the inclined surface of the peripheral wall end surface of the main body, the lock claw is guided to slide on the inclined surface toward the lock frame side. Therefore, the lock coupling work can be facilitated.

It is preferable that the peripheral wall end surfaces of the main body and the lid that are joined to each other are the inclined end surfaces over the entire length.
As a result, the entire peripheral wall of the side provided with the lock frame and the lock claw becomes difficult to bend due to the external force, so that the lock coupling force can be greatly improved.
In addition, the area | region which pinches | interposes the installation site | part of the said lock frame and a lock claw may be made into the said inclined end surface, and flat surfaces may be joined, without making another area | region incline.

It is preferable that the inclination angle of the inclined end surfaces to be joined to each other of the main body and the lid is 30 to 60 degrees with respect to the peripheral wall surface.
The inclination angle of the inclined surface is set to 30 to 60 degrees. If the angle is smaller than 30 degrees, the strength of the tip of the peripheral wall is lowered, and if it is larger than 60 degrees, the effect that the peripheral wall end surface is an inclined surface is sufficiently obtained. By not.
In addition, when the main body and the lid are arc-shaped, the angle is set to 30 to 60 degrees with respect to the tangent line of the inner edge of the main body and the lid.

The in-vehicle container of the present invention is particularly preferably a protector that is externally mounted on a wire harness routed in a vehicle.
The protector is divided into a main body and a lid, and the lock frame and the lock claw are provided at the split ends at both ends, respectively.
Alternatively, the main body and the lid may be integrated with one end side via a thin hinge portion and provided with the lock frame and the lock claw at the other end.

  In the case of a protector that covers a wire harness, a tensile force is easily applied to the wire harness, and a load may be applied in a direction in which the lock between the protector body and the lid is released depending on the pulling direction. Therefore, the protection performance of the wire harness can be enhanced by adopting a configuration in which the lock is not easily released even when a load is applied as in the present invention.

  Furthermore, it is preferable that the protector has a T-shape, and branch lines branch from the main line of the wire harness into a T-shape, and branch portions covering the corrugated tubes are accommodated in the main lines and the branch lines, respectively.

  Conventionally, tape winding is generally used to focus and protect the wire group of the wire harness. However, since the tape winding operation requires skill and labor, it is a corrugate that has flexibility instead of tape winding. In many cases, focusing and protection are performed through a group of wires in a tube. When the electric wire group is passed through the corrugated tube in this way, the electric wire group is exposed at the branch position, and thus a protector is often attached to the branch position. In addition, since the tensile force acts on the wire harness from the trunk line side or multiple branch line sides from multiple directions, the protector attached to the bifurcation part is also subjected to a load in the direction in which the lock between the protector body and the lid is released. It becomes easy. Therefore, it is particularly effective to adopt a configuration in which the lock is not easily released as in the present invention.

As described above, according to the present invention, in a state where the main body and the lid are locked and coupled, the end face of the main body peripheral wall and the end face of the cover peripheral wall that are joined to each other are inclined in the direction opposite to the inclination inclination direction of the lock claw. Because of the inclined surface, the peripheral wall end faces to be joined are pressed in the direction in which they are strongly joined even if external pressure is applied to the peripheral wall near the lock claw or the lock claw itself, and it is difficult to bend easily to the inside. , It becomes difficult to unlock. If an attempt is made to bend toward the inside due to a larger load, the lock claw is strongly locked by the lock frame. Thereby, the lock | rock coupling | bonding force of a main body and a cover body can be raised, and it can prevent that the lock | rock of a main body and a cover body remove | releases.
Also, when the main body and the lid are locked and coupled, the lock claw of the lid contacts the inclined surface of the peripheral wall end surface of the main body, and the lock claw is guided to slide on the inclined surface toward the lock frame. Therefore, the lock coupling work can be facilitated.

Embodiments of the present invention will be described with reference to the drawings.
1 to 4, the in-vehicle container according to the first embodiment of the present invention includes a protector 10 that is externally attached to a T-shaped branch position on a wire harness (not shown) routed in a vehicle.
Although not shown, the wire harness for attaching the protector 10 has a trunk line and a branch line branched from the trunk line in a T-shape passing through the corrugated tubes, respectively, and electric wires drawn from the end portions of the corrugated tubes at the branching positions. A group is exposed, and a protector 10 is attached to cover the exposed group of wires and position the branch position.

  The protector 10 includes a main body 11 and a lid body 12, and is formed of an integral resin molded product in which one end sides of the main body 11 and the lid body 12 are connected via a thin hinge portion 13.

  As shown in FIG. 1, the main body 11 includes a semi-annular horizontal frame portion 11 a that is sheathed on the trunk of the wire harness, and a vertical frame portion 11 b that protrudes in an orthogonal direction from the center in the axial direction of the horizontal frame portion 11 a. Consists of. Lock frames 14 are provided on the outer surface of the peripheral wall on the other end on the opening / closing side of the peripheral wall of the horizontal frame portion 11a of the main body 11 and on both ends of the peripheral wall of the vertical frame portion 11b. The lock frame 14 includes left and right side frame portions 14a that protrude upward from the outer surface of the peripheral wall, and an upper connection frame portion 14b that connects the upper ends of the left and right side frame portions 14a.

On the other hand, as shown in FIG. 1, the lid 12 of the protector 10, as with the main body 11, has a horizontal frame portion 12 a composed of a semicircular peripheral wall that is externally mounted on the trunk of the wire harness, and an axis of the horizontal frame portion 12 a. It consists of a vertical frame portion 12b protruding in the orthogonal direction from the center of the direction. Lock claws 15 are provided on the outer surface of the peripheral wall at the other end on the opening and closing side of the peripheral wall of the horizontal frame portion 12a and at both ends in the circumferential direction of the vertical frame portion 12b.
The lock claw 15 has a shape including a flat locking surface 15a that is in contact with and locked to the lower surface (inner surface) of the upper connecting frame portion of the lock frame 14, and an inclined outer surface 15b that is inclined toward the tip.

  The peripheral body end face 11c and the vertical frame of the horizontal frame part 11a of the main body 11 are joined to each other in a state where the lid body 12 is rotated with the thin hinge part 13 as a fulcrum with respect to the main body 11 and the opening side of the other opposite end is closed. The peripheral wall end surface 11c of the part 11b is an inclined surface as shown in FIGS. 2A and 2B along the entire length in the axial direction. As shown in FIGS. 4A and 4B, the inclined direction of the inclined surface is inclined in the direction opposite to the inclination S1 of the inclined outer surface 15b of the lock claw 15 when the lock claw 15 is locked to the lock frame 14. S2. That is, in the state shown in FIG. 4, the end surface 1c of the peripheral wall is inclined upward from the outer surface side toward the inner surface side, and the inclined outer surface 15b of the lock claw 15 is inclined downward from the outer side toward the inner side.

  Similarly, the peripheral wall end surface 12c of the horizontal frame portion 12a and the vertical frame portion 12b of the lid body 12 provided with the lock claw 15 is also the same as the peripheral wall end surface 11c on the main body 11 side as shown in FIGS. It has a slanted surface. The inclination S2 'of the peripheral wall end face 12c is made parallel to the inclination S2 of the peripheral wall end face 11c on the main body side.

  As shown in FIG. 3, the inclination angle θ of the peripheral wall end surface 11c (12c) is in a range of 30 to 60 degrees with respect to a tangent L passing through the inner ends of the peripheral wall end surfaces 11c of the horizontal frame portion 11a and the vertical frame portion 11b. In this embodiment, the angle is 45 degrees.

Also, ribs 11d that fit into recesses of an annular bellows-like corrugated tube that is sheathed on the wire harness are formed on both inner surfaces in the axial direction of the horizontal frame portion 11a of the main body 11 and inner surfaces on the front end side in the axial direction of the vertical frame portion 11b. Are provided in the circumferential direction and at intervals in the axial direction.
Similarly, ribs 12d that fit into the concave portions of the corrugated tube are extended in the circumferential direction on both inner surfaces in the axial direction of the horizontal frame portion 12a of the lid 12 and inner surfaces on the front end side in the axial direction of the vertical frame portion 12b. In addition, a plurality are provided at intervals in the axial direction.

Next, a lock coupling method of the protector 10 will be described.
First, the trunk of the wire harness with the corrugated tube is passed through the horizontal frame portion 11a of the main body 11, and the concave portion of the corrugated tube and the rib 11d of the horizontal frame portion 11a are fitted. The branch line is passed through the vertical frame portion 11b of the main body 11, and the concave portion of the corrugated tube and the rib 11d of the vertical frame portion 11b are fitted.

Next, the lid 12 is rotated to the main body 11 side with the thin hinge portion 13 as a fulcrum, the lock claw 15 of the lid 12 is inserted into the lock frame 14 of the main body 11 from the inside, and the locking claw 15 is locked flat. The surface 15 a is locked to the lower surface of the upper connection frame portion 14 b of the lock frame 14, and the main body 11 and the lid body 12 are lock-coupled.
At the time of the lock coupling, as shown in FIG. 4A, the tip of the lock claw 15 abuts on the inclined peripheral wall end surface 11c of the main body 11, and the lock claw 15 is along the inclined surface of the peripheral wall end surface 11c. It is guided to the lock frame 14 side and can be easily locked and coupled.

  Further, when the main body 11 and the lid body 12 are locked and coupled, as shown in FIG. 4B, the peripheral wall end face 11c made of the inclined surface of the main body 11 and the peripheral wall end face 12c made of the inclined surface of the lid body 12 are parallel. In the state, they are arranged to face each other and come into contact with each other.

Thus, both the peripheral wall end surface 11c of the main body 11 and the peripheral wall end surface 12c of the lid 12 are inclined surfaces, and the inclination directions S2 and S2 ′ of the peripheral wall end surfaces 11c and 12c are the inclination direction S1 of the inclined outer surface 15b of the lock claw 15. Since the inclined surface is in the reverse direction, the peripheral wall end face 12c joined to the peripheral wall near the lock claw 15 or the lock claw 15 itself from the outside even if a pressing force is applied to the lock claw 15 is inclined. As a result, the peripheral wall is not easily bent inward, and the lock cannot be released.
When the peripheral wall of the lid 12 is bent inward, the peripheral wall of the lid is lifted upward along the inclined surface of the peripheral wall end surface 11 c of the main body 11, and the flat engagement surface 15 a of the lock claw 15 is locked to the lock frame 14. The upper connection frame portion 14b is firmly pressed against and locked to the lower surface of the upper connection frame portion 14b.
Thereby, the lock | rock coupling | bonding force of the main body 11 and the cover body 12 can be raised, and it can prevent that the lock | rock of the main body 11 and the cover body 12 remove | releases. Conversely, when a pressing force is applied to the peripheral wall of the main body 11 from the inside, it is possible to prevent the lock from being released by the same action.

FIG. 5 shows a second embodiment of the present invention.
The protector 10 of this embodiment is also externally mounted at the T-shaped branch position of the wire harness, but the main body 11 and the lid body 12 are not semicircular, and the main body 11 is attached to the peripheral wall 11f from both sides of the bottom wall 11e. The lid body 12 has a U-shaped cross section in which the peripheral wall 12f is erected from both sides of the upper wall 12e.
Moreover, since the protector 10 of this embodiment is not externally fitted to the bellows-like corrugated tube sheathed on the wire harness, no rib is provided on the inner surface of the protector 10.
In addition, since another structure and an effect are the same as that of 1st Embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted.

FIG. 6 shows a third embodiment of the present invention.
The protector 10 of the present embodiment is not mounted on the T-shaped branch portion of the wire harness, but is mounted on the straight portion of the wire harness, and the protector 10 is not provided with a branch portion. It consists only of parts.
Since the protector 10 of this embodiment has substantially the same shape as the protector of the second embodiment except that no branching portion is provided, the description thereof is omitted.

FIG. 7 shows a fourth embodiment of the present invention.
This embodiment is applied to a main body and a cover (cover) of an electrical junction box that accommodates a bus bar and the like, and is a divided body of a box-shaped main body 11 having an upper surface opening and a box-shaped lid 12 having a lower surface opening. It is said. As in the other embodiments, the main body 11 is provided with lock frames 14 on the peripheral walls 11f on both sides, and the lid 12 is provided with lock claws 15 on the peripheral walls 12f on both sides.
In addition, when the main body is divided into an upper case and a lower case, the present invention can also be applied to a lock coupling portion between the upper case and the lower case.

  In the first to third embodiments, the vehicle-mounted container of the present invention is an embodiment of a protector, and the fourth embodiment is an embodiment of an electrical junction box that distributes to a plurality of loads mounted on an automobile. The present invention is suitably used not only in the case of a protector or an electrical junction box, but also in a lock coupling portion between the main body and lid of an in-vehicle container that easily interferes with an outer member mounted in a narrow arrangement space.

It is a perspective view of the protector of a 1st embodiment of the present invention. A protector is shown, (A) is a front view, (B) is a left view, (C) is a right view. It is a principal part enlarged view of the front end surface of a main body. (A) (B) is drawing which shows the lock | rock coupling | bonding method of a main body and a cover body. (A) (B) is drawing which shows the protector of 2nd Embodiment. It is drawing which shows the protector of 3rd Embodiment. It is a schematic sectional drawing of the case of the electrical junction box of 4th Embodiment. (A) is a drawing showing a conventional example, and (B) is a drawing showing conventional problems. It is drawing which shows another prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Protector 11 Main body 11c Perimeter wall surface 12 Lid 12c Perimeter wall end surface 13 Thin hinge part 14 Lock frame 14a Left and right both side frame part 14b Upper connection frame part 15 Lock claw 15a Flat latching surface 15b Inclined outer surface

Claims (5)

A vehicle-mounted container comprising a main body and a lid body that is locked to the main body, and made of a resin molded product that houses a wire harness or an electrical component,
The peripheral wall end surface of the main body and the peripheral wall end surface of the lid body serve as a joint surface, and a lock frame provided with a connecting frame portion at the tip of both side frame portions is provided on the outer peripheral surface of the peripheral wall along the peripheral wall end surface of the main body. While
A lock claw that is inserted and locked from the inner surface side to the connection frame portion of the lock frame protrudes from the outer surface of the peripheral wall along the peripheral wall end surface of the lid, and the lock claw contacts the inner surface of the connection frame portion. It has a shape with a flat locking surface to be contacted and locked, and an inclined outer surface inclined toward the tip,
The vehicle-mounted container, wherein the body, the lid, and the peripheral wall end surface to be joined to each other are inclined end surfaces that are inclined in a direction opposite to the inclination direction of the inclined outer surface of the lock claw.   The in-vehicle container according to claim 1, wherein an inclination angle of an inclined end surface to be joined to each other of the main body and the lid is 30 to 60 degrees with respect to the peripheral wall surface.   The peripheral wall end surfaces of the main body and the lid that are joined to each other are the inclined end surfaces over the entire length, or the region between the lock frame and the lock claw installation site is the inclined end surface and the other regions are not inclined. The in-vehicle container according to claim 1, wherein the flat surfaces are joined to each other. It consists of a protector that is sheathed on the wire harness that is routed to the vehicle.
The main body and the lid are divided into two, and the lock frame and the lock claw are provided at the divided ends at both ends, respectively, or the main body and the lid are connected to each other through a thin hinge portion. The in-vehicle container according to any one of claims 1 to 3, wherein the other end is an integrated body provided with the lock frame and a lock claw.   The in-vehicle device according to claim 4, wherein the protector is formed in a T shape, and branch lines are branched in a T shape from the trunk line of the wire harness, and branch portions in which a corrugated tube is sheathed are accommodated in the trunk line and the branch line, respectively. container.

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