JP2015202004A - protector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent an electric wire from getting caught between a case and a lid of a protector.SOLUTION: In the protector, a space is formed between a side wall tip of a case constituted of a bottom wall and both side walls through which electric wire groups of a wire harness are inserted and an opening/closing end of a lid covering an upper-face opening of the case; and fitting protrusions are formed on the opening/closing end of the lid and the side wall tip opposing to the opening/closing end respectively; a lock guide bar having fitting grooves to be fitted to protrusions formed on the case and the lid; and, in a state where the case having the electric wire groups inserted therethrough is covered with the lid, the fitting protrusions of the case and the lid are fitted to the fitting grooves of the lock guide bar from a tip in a length direction and moved, and the case and the lid are jointed by the lock guide bar.

Description

  The present invention relates to a protector, and more specifically, is a resin protector that is externally mounted on a wire harness routed in a vehicle to control and protect a route, and in particular, a case and a lid of a bowl-shaped protector that accommodates a group of wires. This prevents the electric wire from biting into the contact portion.

  Conventionally, a protector shown in FIG. 7 (A) or (B) has been widely used as a protector for this type of wire harness. The protector 100 inserts a large number of electric wires 201 constituting the wire harness 200 into the bowl-shaped case 101, and then closes the upper surface opening of the case 101 with a lid 102A separate from the case 101 or a lid 102B hinged to one end. Lock portions 101r and 102r provided on the lid 102A or 102B and the case 101 are engaged and locked.

  Conventionally, the present applicant has provided a protector 120 shown in FIG. 8 in Japanese Patent Application Laid-Open No. 9-37432. The protector 120 has L-shaped guide walls 121a and 121b projecting from the upper ends of both side walls of the case 121 to the entire length in the length direction, and is slidably fitted to the guide walls 121a and 121b from both side ends of the separate lid 122. Sliding plate portions 122a and 122b are projected. After inserting the electric wire 201 of the wire harness 200 into the case 121, slide the slide plates 122 a and 122 b of the lid 122 on the guide walls 121 a and 121 b from one end in the length direction of the case 121. The upper surface opening of 121 is closed.

JP-A-9-37432

  7A and 7B, when the electric wire 201 is inserted into the case 101 and then covered with the lid 102A or 102B, the protruding electric wire 201-e is attached to the lid 102A or 102B. It is easy to bite between 102B and the end of the side wall of the case 101, and the wire may be damaged.

  In the protector 120 shown in FIG. 8 of Patent Document 1, when the electric wire 201 protrudes from the upper ends of both side walls of the case 121, the upper wall of the lid 122 is closed in the process of sliding the lid 122 from one side in the length direction and closing it. There is a possibility that the protruding electric wire 201 may be caught between the lower surface of the wire and the upper surface of the both side walls of the case 121, and there is room for improvement.

  This invention is made | formed in view of the said problem, and makes it a subject to provide the protector which can prevent generation | occurrence | production of the electric wire bite between the case and lid | cover of a protector easily and reliably.

In order to solve the above problems, the present invention provides a gap between the end of the side wall of the case made up of the bottom wall and both side walls through which the wire group of the wire harness is inserted, and the open / close end of the lid that covers the top opening of the case. While opening and providing fitting protrusions on the opening and closing ends of the lid and the side wall tips facing the opening and closing ends,
A lock guide rod having a fitting groove to be fitted to a fitting protrusion provided on the case and the lid is provided,
In a state where the case is inserted through the wire group and the cover is covered, the case and the fitting protrusion of the lock guide rod are fitted into the fitting groove of the lock guide rod from the lengthwise direction, and the lock is moved. There is provided a protector configured to connect the case and the lid with a guide bar.

  As described above, in the protector of the present invention, in a state where the lid is closed to the case of the protector, a gap with a dimension that does not sandwich the wire harness wire between the open / close end of the lid and the end of the side wall of the case is opened. An electric wire is prevented from biting between the case and the lid. The dimension of the gap between the case and the lid is set to about 3 to 5 mm so that the most widely used medium-diameter electric wire can be dropped into the case without being bitten.

In order to close the gap between the open / close end of the lid and the end of the side wall of the case and to connect the lid and the case, the lock The guide rod is locked from the front end in the length direction by moving the fitting protrusion of the main body while fitting it into the fitting groove.
At the time of attaching the lock guide rod to the case and lid of the protector, since it is attached by moving from the tip in the length direction, if there is an electric wire protruding from the gap between the case and the lid, The case and the lid can be coupled with the lock guide rod while being inserted into the case. Thereby, it can prevent reliably that an electric wire is bitten between a case and a lid | cover.

The lock guide bar is a flexible bar that can be bent or a linear rigid bar, and is a continuous bar having a circular cross section or a rectangular cross section having an area where the fitting groove is provided.
The rigid rod lock guide rod is used for a linear protector, and the flexible rod lock guide rod is used for a protector having an arc portion.
If the lock guide bar is a flexible bar, it can be used in any case including a straight line and a shape having an arc portion.

For example, the fitting protrusion is composed of a fitting protrusion made of a refracting plate that protrudes from the upper end of the side wall of the case and the front end in the width direction of the lid,
The fitting groove provided in the lock guide rod is composed of a pair of L-shaped bent grooves which are fitted into fitting protrusions made of the case and the lid refracting plate, respectively, and the pair of bent grooves are spaced by 90 degrees. At the same time, it is continuously provided in the length direction with a required interval between the fitting grooves.
The shape of the fitting protrusion and the fitting groove is not limited as long as the fitting protrusion and the fitting groove can be fitted to each other and cannot be easily detached.

Alternatively, the fitting projection comprises a fitting projection made of a cylinder projecting at an interval in the length direction at the upper end of the side wall of the case,
The lock guide rod is a C-shaped cross section, provided with the fitting groove formed of a circular groove with a side opening, and the lock guide rod is alternately fitted on the fitting protrusion of the case and the fitting protrusion of the lid. Good.

The lid is an integral part continuous to the case via a thin hinge part, or a lid separate from the case,
In the integrated product, the fitting protrusion is provided at the opening and closing end of the lid in the width direction, and the fitting protrusion is provided at the tip of one side wall of the case.
In the separate body, the fitting protrusions are provided at both ends in the width direction of the lid and at the upper ends of both side walls of the case.

  As described above, in the protector of the present invention, when the wire harness electric wire is inserted into the protector case and the lid is closed, the wire harness electric wire is sandwiched between the lid open / close end and the case side wall tip. Since there is a gap of no size, it is possible to suppress and prevent the electric wire from being caught between the case and the lid. In addition, when attaching the lock guide rod between the lid and the case after covering the lid, it is moved and attached from the end in the length direction, so there is no electric wire protruding from the gap between the case and the lid. For example, the case and the lid can be coupled with the lock guide rod while the electric wire is inserted into the case. Thereby, it can prevent reliably that an electric wire is bitten between a case and a lid | cover.

The protector of 1st Embodiment of this invention is shown, (A) is a disassembled perspective view, (B) is an enlarged side view of a lock guide rod. It is sectional drawing which shows the state which coat | covered the wire harness with the said protector. It is a disassembled perspective view which shows the modification of the protector of 1st Embodiment. It is a disassembled perspective view of the protector of 2nd Embodiment. It is a disassembled perspective view of the protector of 3rd Embodiment. The protector of 4th Embodiment is shown, (A) is a disassembled perspective view, (B) is sectional drawing of the state coat | covered by the wire harness. (A) (B) is sectional drawing which shows a prior art example. It is a perspective view of another prior art example.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 and 2 show a protector 1-A of the first embodiment.
The protector 1-A includes a protector body 5 and a lock guide bar 6.

The protector body 5 is made of a resin molded product having rigidity, and has a linear shape extending straight in the length direction. The protector body 5 includes a bottom wall 2a and both side walls 2b and 2c, and can be freely opened and closed via a thin hinge portion 3 at the upper end of the side wall 2c and a bowl-shaped case 2 having both ends and an upper surface opened in the length direction. A single-open lid 4 provided continuously is integrally provided.
The lock guide rod 6 has a circular cross section and is a flexible rod that can be bent in an arc shape.

  The fitting protrusion 10 made of a refracting plate projecting outward from the upper end of the side wall 2b of the case 2 and the fitting protrusion 11 made of a refracting plate protruding upward from the open / close end of one end in the width direction of the lid 4 are long. It is provided continuously over the entire length in the vertical direction. Further, tape winding pieces (not shown) for fixing the wire harness are provided at both ends of the bottom wall 2a of the case 2 in the length direction.

  In a state where the lid 4 is rotated and closed in order to close the upper surface opening 2h of the case 2, the electric wire 201 is interposed between the open / close end 4e at one end in the width direction of the lid 4 and the upper end 2s of the side wall 2b of the case 2. A gap C1 larger than the outer diameter is provided. By providing the gap C1, the electric wire 201 constituting the wire harness 200 is prevented from being caught between the lid 4 and the case side wall 2b in a state of being closed by the lid 4. Although many electric wires 201 constituting the wire harness 200 include those having different outer diameters, the gap C1 is set to about 3 to 5 mm so that a medium-sized electric wire that is widely used is not sandwiched.

As described above, the lock guide rod 6 is formed of a flexible resin and can be bent in an arc shape at an arbitrary position in the length direction.
The lock guide rod 6 is formed by fitting fitting grooves 13 and 14 bent in an L shape into which the fitting protrusions 10 of the case 2 and the fitting protrusions 11 of the lid 4 are fitted, respectively, in the longitudinal direction with an interval of 90 degrees. It is provided continuously. Specifically, as shown in FIGS. 1B and 2, the fitting groove 13 includes a lateral groove 13 a that fits the fitting protrusion 10 and a vertical groove 13 b that fits the upper end portion of the side wall 2 b. The groove 14 includes a vertical groove 14 a that fits the fitting protrusion 11 and a horizontal groove 14 b that fits the lid opening / closing portion. A gap C2 having a dimension L facing the gap C1 is provided at a position where the fitting grooves 13 and 14 are closest to each other. The length of the lock guide bar 6 is the same as the total length of the case 2.

The protector 1-A is externally mounted on the wire harness 200 as shown in FIG.
First, the cover 4 of the protector body 5 is opened, and a large number of electric wires 201 constituting the wire harness 200 are inserted from the upper surface opening of the case 2 so as to pass through the case 2, and from both end openings in the length direction. Pull out.

  Next, the lid 4 is rotated to close the upper surface opening of the case 2. At that time, since there is a gap C1 between the open / close end 4e at the front end in the width direction of the lid 4 and the upper end of the side wall 2b of the case 2, the electric wire 201 is sandwiched except for a large-diameter electric wire larger than the gap C1. If an electric wire protruding outward from the gap C <b> 1 is found, the electric wire protruding beyond the lid 4 can be dropped into the case 2.

Next, the lock guide bar 6 is attached from one end to the other end in the length direction of the protector body 5 with the lid 4 closed. The fitting operation is performed by passing the fitting groove 13 of the lock guide rod 6 through the fitting protrusion 10 of the case 2 and the upper end of the side wall 2b, and the fitting groove 14 through the fitting protrusion 11 of the lid and the tip of the lid in the width direction. While fitting. If there is an electric wire protruding outward from the gap C <b> 1 between the case 2 and the lid 4 during the operation, the electric wire is coupled while being dropped into the case 2 when the lock guide rod 6 is moved.
The lock guide rod 6 is attached to the other end in the length direction, and the case 2 and the lid 4 are coupled with the lock guide rod 6 over the entire length in the state shown in FIG.

FIG. 3 shows a modification of the first embodiment.
In the protector 1-A ′ of the modified example, a protruding portion 2g such as a mounting stay is provided on the outer surface of the side wall 2b of the case 2. When the protector 1-A ′ is injection-molded using the upper and lower molds, since there is a protruding portion 2g, the fitting protrusion 10 cannot be provided on the upper end of the side wall 2b. The fitting protrusions 10 are provided as split fitting protrusions 10-1 and 10-2 on both sides in the length direction, not provided in the intermediate region. Similarly to the first embodiment, the lid 4 is provided with a fitting projection 11 continuously on the opening / closing end side of the lid 4 in the length direction.
The lock guide bar 6 uses the same lock guide bar 6 as in the first embodiment, and is provided with a pair of L-shaped fitting grooves 13 and 14 that are continuously provided in the length direction.

  As described above, there are places where the fitting protrusions 10 are not provided in the case 2, but the lock guide bar 6 has the lid 4 in the fitting groove 14 of the lock guide bar 6 in the intermediate region where the fitting protrusions 10 are not provided. The fitting protrusion 11 can be fitted, and the fitting grooves 13 and 14 can be fitted and attached to the fitting protrusions 10 and 11 of the case 2 and the lid 4 in other areas.

FIG. 4 shows a second embodiment.
The protector 1-B according to the second embodiment is different from the protector 1-A according to the first embodiment in that the protector 1-B has a curved shape having an arc portion at an intermediate portion in the length direction.
The case 2 of the protector 1-B is provided with an arc portion 2R in the middle portion between the bottom wall 2a and the side walls 2b, 2c. A fitting projection 10 made of a refracting plate refracted laterally is continuously provided on the upper end of the side wall 2b of the case 2. Further, the straight portions 2L and 2L on both sides in the length direction of the side wall 2c are provided with lids 4A and 4B divided from the upper end via the thin hinge portion 3, and are refracted upward from the open / close ends of the other ends of the lids 4A and 4B. The fitting projections 11A and 11B made of a refracting plate are provided. The lock guide bar 6 uses the lock guide bar 6 having the flexibility of the first embodiment.

Also in the bent protector 1-B having the arc portion, after inserting the wire harness wire group into the case 2, the lid 4 is closed, and the lock guide rod 6 is fitted and attached from one end in the length direction. Yes. At that time, since the lock guide rod 6 is flexible so that it can be bent, it can be bent along the arc portion 2R of the case 2 and can be sequentially fitted to the fitting protrusions 11A and 11B of the divided lids 4A and 4B. .
In a bent protector having an arc portion, the lid may have a shape having an arc portion like the case, and the upper surface opening of the case may be fully closed.
Since the other structure and the attachment procedure to a wire harness are the same as that of 1st Embodiment, description is abbreviate | omitted.
In addition, a rigid bar is used as the lock guide bar, and both side straight portions 2L, 2L of the protector case 2 are used.
It may be fitted from both ends.

  The protector 1 -A of the first embodiment and the protector 1 -B of the second embodiment can reliably prevent the electric wire from being caught between the case 2 and the lid 4. In addition, if the lock guide rod 6 is formed continuously in the length direction, it can be used as a general-purpose product if it is cut according to the length of the protector body. In addition, since the lock guide rod 6 is a flexible rod that can be bent, it can be used for both the linear protector 1-A and the bent protector 1-B.

FIG. 5 shows a third embodiment.
The protector 1-C of the third embodiment has a case in which the case 2 and the lid 4 of the protector body 5 are separated from each other, and the lock guide rod 6 has straight rigidity, and two lock guide rods 6 are used. The point is different from the protector of the first embodiment.
Fitting projections 10A and 10B made of refracting plates projecting outward are provided on the upper ends of both side walls 2b and 2c of the case 2, while fitting made of refracting plates projecting upward at both ends in the width direction of the lid 4 Protrusions 11C and 11D are provided.
The two lock guide rods 6 and 6 are provided with fitting grooves 13 and 14 bent in an L shape as in the first embodiment.

After inserting the electric wire group of the wire harness into the case 2, the cover 4 is covered, and lock guide rods 6 and 6 are attached to both sides of the case 2 and the cover 4, respectively.
Other configurations and operational effects are the same as those of the first embodiment, and thus description thereof is omitted.

6A and 6B show a fourth embodiment.
The protector 1-D of the fourth embodiment does not have a fitting projection at the middle part of the upper end of the side wall 2b of the case 2, but has fitting projections 20A and 20B made of cylindrical projections on both sides in the length direction.
On the other hand, a fitting projection 21 made of a cylindrical projection having the same shape as the fitting projections 20A and 20B is provided in the middle portion in the length direction of the opening / closing end 4e at one end in the width direction of the lid 4. With the upper surface opening of the case 2 closed by the lid 4, the fitting projection 21 of the lid 4 is positioned between the fitting projections 20A and 20B of the case so as to be continuous with the fitting projections 20A, 21 and 20B. Yes.
In addition, with the lid 4 closed, there is a gap between the fitting protrusions 20A, 20B of the case 2 and the open / close end 4e of the lid 4, and the upper end of the fitting protrusion 21 of the lid 4 and the side wall 2b of the case 2 There is also a gap between them.

  The lock guide rod 25 has a C-shaped cross section, and has a shape in which a fitting groove 26 formed of a circular groove that opens laterally is continuously provided in the length direction. The fitting projections 20A, 21 and 20B of the protector body and the lid are fitted into the fitting groove 26 of the lock guide rod 25 continuously in the length direction.

  After inserting the electric wire group of the wire harness into the case 2 of the protector 1-D, the cover 4 is put on, and then the fitting protrusion 20A of the case 2 is inserted into the fitting groove 26 of the lock guide rod 25 from one end in the length direction. The fitting projection 21 of the lid 4 and finally the fitting projection 20B of the case 2 are fitted, and the case 2 and the lid 4 are coupled by the lock guide rod 25, and the state shown in FIG.

  Similarly to the third embodiment, the protector of the fourth embodiment may have a case and a lid as separate bodies, and may also be a protector having a curved portion as in the second embodiment.

1-A to 1-B Protector 2 Case 3 Thin hinge 4 Lid 5 Protector body 6 Lock guide rod 10, 11 Fitting protrusion 13, 14 Fitting groove 200 Wire harness 201 Electric wire C1 Crevice

Claims (5)

A gap is formed between the tip of the side wall of the case formed by the bottom wall and both side walls through which the wire group of the wire harness is inserted, and the open / close end of the lid covering the upper surface opening of the case. While providing a fitting projection on each of the side wall tips facing the open / close end,
A lock guide rod having a fitting groove to be fitted to a fitting protrusion provided on the case and the lid is provided,
In a state where the case is inserted through the wire group and the cover is covered, the case and the fitting protrusion of the lock guide rod are fitted into the fitting groove of the lock guide rod from the lengthwise direction, and the lock is moved. A protector configured to couple the case and the lid with a guide bar.   The protector according to claim 1, wherein the lock guide rod is formed of a flexible rod that can be bent or a linear rigid rod, and has a circular cross section or a rectangular cross section having an area where the fitting groove is provided. While the fitting projection comprises a fitting projection made of a refracting plate that projects from the upper end of the side wall of the case and the front end in the width direction of the lid,
The fitting groove provided in the lock guide rod is composed of a pair of L-shaped bent grooves which are fitted into fitting protrusions made of the case and the lid refracting plate, respectively, and the pair of bent grooves are spaced by 90 degrees. The protector according to claim 1, wherein the protector is provided continuously in the length direction with a required interval between the fitting grooves. While the fitting projection comprises a fitting projection made of a cylinder projecting at an interval in the length direction at the upper end of the side wall of the case,
The lock guide bar is a C-shaped cross section provided with the fitting groove formed of a circular groove with a side opening, and the lock guide bar is alternately fitted on the fitting protrusion of the case and the fitting protrusion of the lid. The protector according to claim 1 or 2. The lid is an integral part continuous to the case via a thin hinge part, or a lid separate from the case,
In the integrated product, the fitting protrusion is provided at the opening and closing end of the lid in the width direction, and the fitting protrusion is provided at the tip of one side wall of the case.
The protector according to any one of claims 1 to 4, wherein in the separate body, the fitting protrusions are provided on both ends in the width direction of the lid and on upper ends of both side walls of the case.

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