JP5678794B2 - Fixture - Google Patents

Description

  The present invention relates to a fixture for fixing an electric wire to a protector at a wire outlet port of the protector covering the periphery of the electric wire.

  A protector for protecting an electric wire may be attached to a wire harness mounted on a vehicle such as an automobile. Generally, a protector is comprised by the cylindrical member which covers the circumference | surroundings of an electric wire (or electric wire bundle which bundled several electric wires). When the electric wire is covered with the protector, it does not come into contact with surrounding members according to vibration or movement of the movable part, and durability is increased.

  By the way, when attaching a protector to an electric wire, the electric wire must be fixed with respect to the protector in a state where the drawing dimension from the lead-out port of the protector is strictly controlled. If the lead-out dimension of the electric wire deviates from the specified dimension, unnecessary slack of the wire harness may occur in one position while the wire harness is routed in the vehicle body, or the wire harness may be This is because there may be a situation where the extra length is insufficient.

  For example, in Patent Documents 1 and 2, as an aspect of fixing the electric wire at the protector outlet, the electric wire is inserted into the protector by sandwiching the electric wire with a rib formed inside the protector and causing the electric wire to meander through the protector. A mode of fixing is disclosed.

JP 2004-166454 A Japanese Utility Model Publication No. 3-80620

  By the way, for example, a wire harness mounted on a vehicle is required to be formed as compact as possible in order to meet the downsizing of the vehicle. For example, when the main body member and the lid member are hinge-connected in a fixing mode in which the electric wire is meandered through the rib formed on each of the main body member and the lid member, the main body member and the lid member are downsized. If it tries, it will be easy to generate | occur | produce biting of an electric wire when rotating a cover member and covering a main body member, and there exists a problem that the work burden in the operation | work at the time of covering a cover member on a main body member will become large.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a technique capable of easily fixing an electric wire to a protector with a small work load while responding to a request for downsizing of the protector.

  The invention according to the first aspect is a fixture for fixing the electric wire to the protector in the electric wire outlet of the protector that covers the periphery of the electric wire, and a main body member that forms a groove through which the electric wire is inserted; A lid member that is connected to the main body member via a hinge portion and that can be opened and closed by rotating about the hinge portion, and is formed on the main body member, and extends in the extending direction of the groove. Along the opening direction along the pair, a pair of sandwiching portions that sandwich the electric wire inserted into the groove from both sides, and the extending direction of the internal space of the cylinder formed by the lid member covering the groove of the main body member Alternately arranged main body side ribs and lid side ribs, the main body side ribs projecting from the inner surface of the groove of the main body member in a direction intersecting the extending direction of the internal space Extending along the lid side Projecting on the surface of the lid member facing the groove of the main body member, extending along a direction intersecting the extending direction of the internal space, and extending from the extending direction of the internal space By the way, the edge of the lid-side rib has a wave shape having two peak portions, and the peak portion formed on the hinge portion side of the two peak portions is more than the other peak portion. Formed low.

  The invention according to the second aspect is the fixture according to the first aspect, wherein the cross-sectional area of the internal space perpendicular to the extending direction of the internal space is the internal part at the formation position of the main body side rib. The cross-sectional area of the electric wire inserted into the space is assumed to be larger.

  The invention according to a third aspect is the fixture according to the first or second aspect, wherein a cross-sectional area of the internal space perpendicular to the extending direction of the internal space is formed at the position where the lid-side rib is formed. The cross-sectional area of the electric wire inserted through the internal space is larger.

  The invention according to a fourth aspect is the fixture according to any one of the first to third aspects, wherein the main body side rib and the lid side rib are perpendicular to the extending direction and the projecting direction. The thickness is uniform.

  The invention according to a fifth aspect is the fixture according to any one of the first to fourth aspects, wherein the main body member includes a main body side arm portion protruding from an outer wall surface thereof, and the lid member is A lid-side arm portion protruding from the outer wall surface, and the hinge portion is connected to the body member via the body-side arm portion at one end of both ends sandwiching the bent portion, The end portion is connected to the lid member via the lid-side arm portion.

  According to the first aspect of the present invention, when the main body member is covered by the lid member, the electric wire inserted into the groove of the main body member is inserted between the main body side rib and the lid side rib to meander through the internal space of the cylindrical body. To be fixed to the fixture. Here, the tip of the lid-side rib has a wave shape having two peak portions when viewed from the extending direction of the internal space, and the peak portion formed on the hinge portion side is more than the other peak portion. Since it is formed low, when the cover member is placed on the main body member, the electric wire is unlikely to bite. That is, according to this configuration, it is possible to reduce the work load related to fixing the electric wire without increasing the size of the fixing tool.

  According to the second aspect of the invention, the cross-sectional area of the internal space orthogonal to the extending direction of the internal space is larger than the cross-sectional area of the electric wire inserted into the internal space at the position where the main body side rib is formed. Therefore, the operator does not need to apply a large load when covering the main body member with the lid member, and can cover the lid member without difficulty.

  According to the third aspect of the invention, the cross-sectional area of the internal space orthogonal to the extending direction of the internal space is larger than the cross-sectional area of the electric wire inserted into the internal space at the lid rib formation position. Therefore, the operator does not need to apply a large load when covering the main body member with the lid member, and can cover the lid member without difficulty.

  According to the fourth aspect of the invention, the main body side rib and the lid side rib have a uniform thickness in the direction orthogonal to the extending direction. According to this configuration, the holding force when the main body side rib and the lid side rib hold the electric wire is increased, and the electric wire can be reliably fixed in the fixture.

  According to the fifth aspect of the invention, the hinge portion is continuous with the main body member via the main body side arm portion, and is connected with the lid member via the lid side arm portion. According to this configuration, since the fulcrum of the hinge rotation comes to a position separated from the outer wall surface of the main body member and the lid member by the length of the arm portion, the lid member is removed from the main body member while suppressing the occurrence of biting of the electric wire. Can be put on smoothly.

It is a figure which shows the structure of a wire harness. It is a front view of a fixing tool. It is a top view of a fixing tool. It is a top view of the fixture in an open state. It is sectional drawing of a fixing tool. It is sectional drawing of a fixing tool. It is sectional drawing of a fixing tool. In a cover covering operation | work, it is a figure which shows typically the mode of the state which the lid side rib contacted for the first time with the electric wire bundle penetrated by the groove | channel of the main body member. It is a figure which expands and shows the formation position vicinity of a hinge part. It is a figure which shows typically the locus | trajectory of the nail | claw part in each when not forming an arm part. It is a perspective view of a fixing tool.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. The following embodiment is an example embodying the present invention, and is not an example of limiting the technical scope of the present invention. The wire harness which concerns on embodiment of this invention is mounted in vehicles, such as a motor vehicle, for example, and connects between electric power supply sources, such as a battery or an inverter circuit, and an electrical equipment, or between several electrical equipment.

<1. Wire harness>
First, a wire harness 100 according to an embodiment of the present invention will be described with reference to FIG. FIG. 1 is a diagram illustrating a configuration of the wire harness 100. The wire harness 100 includes a wire bundle 1 and a protector 2 through which the wire bundle 1 is inserted.

<1-1. Wire bundle 1>
The electric wire bundle 1 is formed by bundling a plurality of electric wires and covering with an exterior member (for example, a tube formed from vinyl chloride or the like). The electric wire bundle 1 has a branch structure in which branch lines forcedly bent from the main line extend. Connectors, terminals, and the like (not shown) are provided at the ends of the trunk line and branch line. The protector 2 is attached to the periphery of the portion including the branch structure of the wire bundle 1, thereby preventing damage due to contact with an object existing in the periphery.

<1-2. Protector 2>
The protector 2 is a tool that covers the periphery of the wire bundle 1, and is formed from a resin such as polyamide (PA), polypropylene (PP), polybutylene terephthalate (PBT), or ABS resin.

  The protector 2 is a fixing unit that fixes the wire bundle 1 to the protector 2 at the wire accommodating portion 21 that accommodates the wire bundle 1 and the wire outlet port of the protector 2 (in this embodiment, the branch wire portion outlet port). And a tool 22.

  The wire accommodating portion 21 is a cylindrical member that allows the wire bundle 1 to be inserted therein. For example, a groove that covers the opening of the groove is formed in a semi-cylindrical member that forms a groove into which the wire bundle 1 is inserted. It is formed by covering the member. A through hole is formed in the side wall of the electric wire housing portion 21 for inserting the branch line portion of the electric wire bundle 1 inserted into the electric wire housing portion 21.

  The fixture 22 is a cylindrical member that allows the branch line portion of the wire bundle 1 to be inserted therein, and is attached to the outer wall of the wire accommodating portion 21 at one end thereof (specifically, one end of the main body member 221). . However, the fixing tool 22 is arranged so as to surround the periphery of the through hole formed in the side wall of the electric wire housing portion 21 at the tube end surface on the installation side, and thereby formed inside the cylinder of the fixing tool 22. The space (wire insertion space V) to be communicated with the inside of the cylinder of the wire housing portion 21 through a through hole formed in the side wall of the wire housing portion 21.

  The fixture 22 includes a body member 221 that is a semi-cylindrical member that forms a groove into which the wire bundle 1 (specifically, a branch line portion of the wire bundle 1) is inserted. One end portion along the extending direction of the groove of the main body member 221 is attached to the outer wall of the wire housing portion 21. The main body member 221 is connected to the lid member 222 via a hinge portion 223 at one end portion along the width direction of the groove.

  The lid member 222 is a member that is connected to the main body member 221 via the hinge portion 223 and can open and close the groove of the main body member 221 by being rotated around the hinge portion 223. That is, when the lid member 222 is rotated with respect to the main body member 221 about the hinge portion 223, the fixture 22 is in a state where the upper opening surface of the groove of the main body member 221 is opened (open lid). (State) (state shown in FIG. 4) and a state where the cover member 222 covers the upper opening surface of the groove of the main body member 221 (closed state) (state shown in FIG. 1 and the like).

  When the lid member 222 is fixed to the main body member 221 with the groove of the main body member 221 covered, the fixture 22 becomes a cylindrical body, and the inside of the cylindrical body allows the branch line portion of the wire bundle 1 to be inserted. An electric wire insertion space V is formed. The lid member 222 is fixed to the main body member 221 by, for example, inserting the claw portion 224 formed on the lid member 222 into the claw receiving portion 225 formed on the main body member 221 in a state of preventing the removal (specifically, Is realized by inserting the claw portion 224 into the inside of the frame of the claw receiving portion 225 formed in a closed frame shape and catching the protrusion formed at the tip of the claw portion 224 on the claw receiving portion 225). The

<2. Manufacturing Method of Wire Harness 100>
The wire harness 100 is manufactured by attaching the protector 2 to the wire bundle 1. When attaching the protector 2 to the wire bundle 1, the operator first sets the wire bundle 1 to be inserted into the wire housing portion 21 of the protector 2, and further bends the branch portion of the wire bundle 1. It is assumed that the portion is inserted along the groove of the body member 221 of the fixture 22 in the opened state.

  Subsequently, the worker sets the fixing tool 22 in the opened state to the closed state. Specifically, the lid member 222 is rotated around the hinge portion 223 so that the lid member 222 is placed over the opening of the groove of the main body member 221, and the claw portion 224 is inserted into the claw receiving portion 225 in a state of preventing the removal ( This operation is hereinafter referred to as “covering operation”). As a result, the protector 2 is attached to the wire bundle 1.

<3. Fixing tool 22>
Next, the configuration of the fixture 22 will be described in detail.

<3-1. Temporary holding structure>
The body member 221 provided in the fixture 22 is formed with a structure (temporary holding structure) that holds the wire bundle 1 inserted through the groove at the opening end along the extending direction of the groove. The temporary holding structure will be described with reference to FIG. FIG. 2 is a front view of the fixture 22 in the closed state.

  The temporary holding structure is formed by a clamping plate 31 that is attached to an end surface of the main body member 221 that is a bowl-shaped member that forms a groove (an end surface opposite to the side on which the electric wire housing portion 21 is attached).

  The clamping plate 31 is a U-shaped flat plate member in which a pair of leg portions (clamping portions) 311 and 311 extending in parallel are connected via a connecting portion 312, and the longitudinal direction of the pair of clamping portions 311 and 311 is defined. The main body member 221 is attached to the end surface of the main body member 221 so as to be along the side wall of the main body member 221 and the connecting portion 312 along the bottom portion of the main body member 221. In addition, the connection part 312 is formed substantially the same as the thickness of the bottom part of the main body member 221, and is formed so that it may not protrude from the opening surface of a groove | channel.

  Each clamping portion 311 extends to a position where the tip thereof is flush with the upper end surface of the lid member 222 that covers the main body member 221. However, the length d311 from the tip of the sandwiching portion 311 to the upper surface of the connecting portion 312 is formed larger than the diameter of the wire bundle 1 inserted into the groove.

  Each sandwiching portion 311 is formed such that its width (length in a direction orthogonal to the extending direction of the sandwiching portion 311) is larger than the thickness of the side wall of the main body member 221, and each sandwiching portion 311 has a main body. The member 221 has an open end face (open end face along the extending direction of the groove) and is projected from both sides. However, the width d312 of the gap formed between the sandwiching part 311 and the sandwiching part 311 is formed to be smaller than the diameter of the wire bundle 1 inserted into the groove.

  When the wire bundle 1 is inserted into the groove of the main body member 221, the wire bundle 1 is sandwiched from the left and right by the pair of sandwiching portions 311 and 311 at the opening end along the extending direction of the groove. Thereby, the wire bundle 1 is fixedly held with respect to the main body member 221. According to this configuration, the branch line portion of the wire bundle 1 inserted into the groove of the main body member 221 is fixed in a state in which the pull-out dimension does not deviate. If the electric wire bundle 1 is inserted into the 221 groove, a situation in which the drawing size of the electric wire bundle 1 is not shifted during the subsequent cover covering operation does not occur. Moreover, since the branch part of the wire bundle 1 is inserted along the groove of the main body member 221 in a state where it is forcedly bent from the extending direction of the trunk line, when the clamping parts 311 and 311 are not formed, The branch line is elastically restored in the direction along the direction in which the trunk line extends and easily falls off the groove. According to the above configuration, the pair of holding portions 311 and 311 hold the wire bundle 1 in a fixed manner. The branch line is less likely to drop out of the groove of the main body member 221, and the operator can smoothly cover the work.

<3-2. Fixed structure>
The fixture 22 is formed with a structure (fixed structure) for fixing the wire bundle 1 inserted into the wire insertion space V so as not to move along the extending direction of the wire insertion space V. The fixing structure will be described with reference to FIGS. FIG. 3 is a top view of the fixture 22 in the closed state. FIG. 4 is a top view of the fixture 22 in the opened state. FIG. 5 is a cross-sectional view of the fixture 22 as seen from the direction of the arrow K1 in FIG. 6 is a cross-sectional view of the fixture 22 as seen from the direction of the arrow K2 in FIG. 7 is a cross-sectional view of the fixture 22 as viewed from the direction of the arrow K3 in FIG.

  Specifically, the fixing structure is formed of a main body side rib 41 formed on the main body member 221 and a lid side rib 42 formed on the cover member 222. The main body side ribs 41 and the lid side ribs 42 are alternately arranged at intervals (for example, at equal intervals) along the extending direction of the wire insertion space V. In this embodiment, a total of three ribs of a main body side rib 41, a lid side rib 42, and a main body side rib 41 are arranged in order from the opening end of the electric wire insertion space V, and these three ribs 41, 42, 41 are arranged. Thus, a fixed structure is formed.

<3-2-1. Body side rib 41>
The configuration of the main body side rib 41 will be described with reference to FIG. The main body side rib 41 protrudes from the inner surface of the groove of the main body member 221, and extends along a direction intersecting (here, orthogonal) to the extending direction of the electric wire insertion space V (that is, across the groove). Exists.

  More specifically, the main body side rib 41 has a shape in which a portion erected along both side walls of the groove is connected to a portion erected along the bottom surface of the groove, and the extending direction of the electric wire insertion space V From the perspective, it is U-shaped. However, when viewed from the extending direction of the electric wire insertion space V, the edge of the main body side rib 41 passes along the center line of the electric wire insertion space V (through the center of the cross section of the electric wire insertion space V and along the extending direction of the electric wire insertion space V. Preferably, the shape approximates an arc centered on the center line). In this embodiment, the shape is a curved line that draws a gentle curve from the edge portion along the side wall of the groove to the edge portion along the bottom surface of the groove. Yes.

<3-2-2. Lid 42>
The configuration of the lid side rib 42 will be described with reference to FIG. The lid-side rib 42 protrudes from the inner side surface of the lid member 222 (the surface on the side facing the groove of the main body member 221 in the closed state) and intersects the extending direction of the wire insertion space V (here, orthogonal) ) Extends along the direction of.

  When viewed from the extending direction of the wire insertion space V, the edge of the lid-side rib 42 has a wave shape having two peak portions 421 and 422. The peak portions 421 and 422 and the valley portions sandwiched between them are smoothly connected by a gentle curve, and the apex of the peak portions 421 and 422 is centered on the center line of the wire insertion space V. The shape approximates the arc.

  However, the peak part (hinge side peak part) 421 formed on the hinge part 223 side of the two peak parts 421 and 422 is formed lower than the other peak part (claw side peak part) 422. That is, the separation distance d421 from the inner surface of the lid member 222 to the apex of the hinge-side peak 421 is formed smaller than the separation distance d422 from the inner surface of the lid member 222 to the apex of the claw-side peak 422. Particularly preferably, the peak height (d421) of the hinge side peak portion 421 is 0.9 times or less the peak height (d422) of the claw side peak portion 422.

  The apex of the hinge side peak 421 is preferably formed as close to the hinge 223 as possible, and the apex of the claw side peak 422 is preferably formed as close to the claw 224 as possible. Specifically, it is particularly preferable that the apex of the hinge side peak portion 421 is formed so as to be positioned in the most divided region on the hinge portion 223 side when the lid side rib 42 is equally divided into four in the extending direction. preferable. Further, it is particularly preferable that the apex of the claw-side peak portion 422 is formed so as to be positioned in the most divided region on the claw portion 224 side when the lid-side rib 42 is equally divided into four in the extending direction.

<3-2-3. Fixed mode>
The electric wire bundle 1 inserted into the electric wire insertion space V is sandwiched from above and below by the main body side ribs 41 and the lid side ribs 42 that are alternately arranged along the extending direction of the electric wire insertion space V. V is meandered through V. As a result, the wire bundle 1 is fixed to the fixture 22.

  Here, as described above, each of the ribs 41 and 42 has a shape approximating an arc whose center is the center line of the wire insertion space V when viewed from the extending direction of the wire insertion space V. According to this configuration, when the lid member 222 is placed on the main body member 221, the wire bundle 1 is pushed toward the center line of the wire insertion space V at the positions where the ribs 41 and 42 are formed. Therefore, the wire bundle 1 is not easily damaged during the lid covering operation and in the closed state.

  Further, as described above, the edge of the lid-side rib 42 is disposed on the hinge part 223 side as viewed from the extending direction of the electric wire insertion space V, and the hinge-side peak part 421 and the claw part 224 having a relatively low height. It is set as the shape which has the nail | claw side peak part 422 arrange | positioned by the side and a relatively high height. According to this configuration, the wire bundle 1 is not easily pushed out by the claw-side peak portion 422 in the cover-covering operation, and the biting of the wire bundle 1 (for example, the biting of the tube covering the wire bundle 1) is less likely to occur. . This point will be described with reference to FIG. FIG. 8 schematically shows a state in which the lid-side rib 42 of the lid member 222 to be rotated comes into contact with the wire bundle 1 inserted through the groove of the main body member 221 for the first time in the lid covering operation. . According to the above configuration, at the timing when the lid-side rib 42 contacts the wire bundle 1 for the first time, the advancing direction AR422 of the apex of the claw-side peak portion 422 rises with respect to the opening surface of the groove of the main body member 221 (opening) Therefore, the claw-side crest 422 is pushed in such a manner that the side surface of the wire bundle 1 (side surface on the claw portion 224 side) is pushed in from the upper side to the lower side. Therefore, the wire bundle 1 is not easily pushed out to the claw portion 224 side by the lid-side rib 42, and the wire bundle 1 is less likely to be bitten. On the other hand, since the timing at which the hinge-side peak portion 421 contacts the wire bundle 1 is delayed, it is difficult for the hinge-side peak portion 421 to push out the wire bundle 1. Note that the greater the difference in height between the hinge-side peak 421 and the claw-side peak 422, the closer the top of the hinge-side peak 421 is to the position of the hinge 223, and the more the claw-side peak 422. The wire bundle 1 is less likely to be bitten as the top of the wire comes closer to the claw portion 224.

<3-3. Cross section>
As described above, when the main body side rib 41 is formed on the main body member 221, the wire insertion space V becomes narrower than the other extending portions at the position where the main body side rib 41 is formed. Similarly, by forming the lid-side rib 42 on the lid member 222, the wire insertion space V becomes narrower than the other extending portions at the position where the lid-side rib 42 is formed. Further, since the holding plate 31 is formed on the main body member 221, the groove of the main body member 221 has a narrower shape at the opening end than the other extending portions. That is, in the closed state, the cross-sectional area of the opening end surface of the electric wire insertion space V is reduced by the overhang width of the holding portions 311 and 311.

  Here, the cross-sectional area of the electric wire insertion space V at the position where the main body side rib 41 is formed, the cross sectional area of the electric wire insertion space V at the position where the lid side rib 42 is formed, and the area of the opening end surface of the electric wire insertion space V are all. The cross-sectional area of the wire bundle 1 inserted through the wire insertion space V is larger. However, the “cross-sectional area of the electric wire insertion space V” here refers specifically to a cross-sectional area of a cross section orthogonal to the extending direction of the electric wire insertion space V.

  According to this configuration, the lid member 222 can be covered with the main body member 221 without crushing the wire bundle 1 with the lid member 222 during the cover covering operation. Therefore, the operator does not need to apply a large load when the lid member 222 is locked on the main body member 221, and the lid member 222 can be covered without difficulty. In addition, the wire bundle 1 is less likely to bite during the lid covering operation.

<3-4. Thickness>
As described above, in the fixture 22, the wire bundle 1 is sandwiched from above and below by the body side ribs 41 and the lid side ribs 42 that are alternately arranged along the extending direction of the wire insertion space V, and the wire insertion space. By being meandered through the V, it is fixed to the fixture 22.

  Here, each of the main body side rib 41 and the lid side rib 42 has a uniform length (thickness) in the direction perpendicular to the extending direction and the protruding direction. That is, as shown in FIG. 5, each of the ribs 41 and 42 has a rectangular cross section cut along the extending direction of the wire insertion space V. However, the tip angle in the cross section is preferably formed into a rounded corner so as not to damage the wire bundle 1.

  According to this structure, compared with the case where each rib 41 and 42 is formed in a taper shape, the contact area which each rib 41 and 42 contacts with respect to the wire bundle 1 can be ensured large, for example. Accordingly, since the holding force (and consequently the fixing force of the wire bundle 1 in the fixing structure) when the wire bundle 1 is sandwiched and held by the ribs 41 and 42 is strengthened, the wire bundle 1 is securely fixed by the fixture 22. be able to. Moreover, since the holding force of each rib 41 and 42 becomes high, the electric wire bundle 1 can be fixed with a small number of ribs 41 and 42. As a result, the fixture 22 can be downsized.

<3-5. Hinge 223>
A configuration of the hinge portion 223 that connects the main body member 221 and the lid member 222 will be described with reference to FIGS. 2, 9, and 10. FIG. 9 is an enlarged view showing the vicinity of the position where the hinge portion 223 is formed. FIG. 10 is a diagram schematically showing the trajectory of the claw portion 224 when the arm portions 51 and 52 are formed or not.

  The main body member 221 is formed with an arm portion (main body side arm portion) 51 protruding from the outer wall surface (specifically, the outer wall surface on the side connected to the hinge portion 223) in the normal direction of the outer wall surface. Is done. On the other hand, the lid member 222 has an arm portion (lid side arm portion) 52 that protrudes from the outer wall surface (specifically, the outer wall surface connected to the hinge portion 223) in the normal direction of the outer wall surface. Is formed. However, the protruding length d51 of the main body side arm portion 51 and the protruding length d52 of the lid side arm portion 52 are formed to be equal.

  The hinge portion 223 is formed thinner toward the center portion, and is formed to be freely bent at the center portion where the thickness is the thinnest. In the hinge part 223, one end part of both end parts sandwiching the center part (bending part) is attached to the projecting side end part of the main body side arm part 51. The other end is attached to the end of the lid-side arm 52 on the projecting side. That is, the hinge portion 223 is connected to the main body member 221 through the main body side arm portion 51 at one end portion between both end portions sandwiching the bent portion, and is connected through the lid side arm portion 52 at the other end portion. The lid member 222 is connected.

  The hinge portion 223 is not directly attached to the main body member 221 and the lid member 222 but is attached to the portions 221 and 222 via the arm portions 51 and 52, respectively, as shown in FIG. As described above, the fulcrum Q when the lid member 222 is rotated with respect to the main body member 221 is equal to the length d51 (= d52) of the arm portions 51 and 52 from the outer wall surface of the main body member 221 and the lid member 222. And the radius of the circle drawn by the trajectory of the claw portion 224 is increased. Then, since the inclination angle of the nail | claw part 224 when inserting in the nail | claw receiving part 225 becomes large, the nail | claw part 224 is smoothly inserted in the opening of the nail | claw receiving part 225, without being hooked on the nail | claw receiving part 225. Further, when the fulcrum Q is separated from the outer wall surfaces of the main body member 221 and the lid member 222, the lid member 222 abuts not from the side surface on the hinge portion 223 side of the wire bundle 1 but from a position close to the upper surface, and thus the lid member 222. This makes it difficult for the wire bundle 1 to be pushed out and prevents the wire bundle 1 from being bitten.

<4. Effect>
According to the fixture 22 according to the above-described embodiment, the occurrence of the biting of the wire bundle 1 in the cover-covering operation can be suppressed without increasing the size of the fixture 22. Moreover, it is ensured that the branch line can be fixed with an appropriate drawing size. Moreover, it is ensured that the load required for the cover covering operation is small. That is, in the above-described embodiment, the work load related to fixing the wire bundle 1 can be reduced without increasing the size of the fixture 22.

<5. Modification>
In the above embodiment, in order from the opening end of the electric wire insertion space V, a total of three ribs of the main body side rib 41, the lid side rib 42, and the main body side rib 41 are arranged, and these three ribs 41, 42, Although the fixing structure is formed by 41, the aspect of the rib forming the fixing structure is not limited to this. For example, three or more ribs may be arranged. Alternatively, the ribs may be alternately formed in the order of the lid-side ribs 42, the main body-side ribs 41, the lid-side ribs 42 in order from the opening end.

  In the above-described embodiment, the fixture 22 may be provided at the end of the electric wire housing part 21.

  Moreover, in said embodiment, although the wire bundle 1 was set as the structure provided with the exterior member which coat | covers in the state which bundled these several electric wires, the wire bundle 1 is not necessarily coat | covered by the exterior member. Also good. Further, the wire harness 100 may be configured to include a single electric wire and the protector 2 through which the electric wire is inserted.

<6. Example>
An example that specifically shows the fixture 22 according to the above-described embodiment will be described. However, the present invention is not limited to the following examples.

The dimension of the fixture 22 according to the embodiment will be described with reference to FIG. FIG. 11 is a perspective view of the fixture 22 according to the embodiment. Here, it is assumed that the branch line portion of the electric wire bundle 1 inserted through the fixture 22 is an electric wire bundle covered with a tube having an inner diameter of 6 mm and an outer diameter of 7 mm. Therefore, the cross-sectional area of the wire bundle 1 is about 38.5 mm ² .

  The width L1 of the fixture 22 is “11.5 mm”. The height L2 of the fixture 22 is “10 mm”. The depth L3 of the fixture 22 is “11.5 mm”.

  In addition, the length L4 from the front end of the sandwiching portion 311 to the upper surface of the connecting portion 312 is set to “8.5 mm”, which is larger than the outer diameter of the tube. Further, the width L5 of the gap formed between the sandwiching portion 311 and the sandwiching portion 311 is set to “6 mm” which is smaller than the outer diameter of the tube.

  Further, the length L6 of the main body side arm portion 51 provided between the hinge portion 223 and the main body member 221 and the length L6 of the lid side arm portion 52 provided between the hinge portion 223 and the lid member 222 are: , Both are set to “1.5 mm”.

Further, the cross-sectional area of the wire insertion space V at the position where the main body side rib 41 is formed is set to “39.0 mm ² ”, which is larger than the cross-sectional area of the tube. The cross-sectional area of the wire insertion space V at the position where the lid-side rib 42 is formed is “39.1 mm ² ”, which is larger than the cross-sectional area of the tube.

DESCRIPTION OF SYMBOLS 1 Wire bundle 2 Protector 22 Fixing tool 221 Main body member 222 Lid member 223 Hinge part 31 Holding plate 311 Holding part 41 Main body side rib 42 Lid side rib 51, 52 Arm part

Claims (5)

In the wire outlet of the protector that covers the periphery of the wire, a fixing tool that fixes the wire to the protector,
A body member that forms a groove through which the electric wire is inserted;
A lid member that is connected to the main body member via a hinge part, and that can open and close the groove of the main body member by rotating around the hinge part;
A pair of sandwiching portions that are formed on the main body member and sandwich an electric wire inserted into the groove from both sides at an opening end along the extending direction of the groove,
Main body side ribs arranged alternately along the extending direction of the internal space of the cylinder formed by the cover member covering the grooves of the main body member, and the cover side ribs,
With
The main body side rib is projected on the inner surface of the groove of the main body member, and extends along a direction intersecting with the extending direction of the internal space,
The lid-side rib is provided on the surface of the lid member facing the groove of the main body member, and extends along a direction intersecting the extending direction of the internal space;
When viewed from the extending direction of the internal space, the edge of the lid-side rib has a wave shape having two peak portions, and the peak formed on the hinge portion side of the two peak portions. A fixture in which a part is formed lower than the other peak part. The fixture according to claim 1,
The fixture in which the cross-sectional area of the internal space orthogonal to the extending direction of the internal space is larger than the cross-sectional area of the electric wire inserted into the internal space at the formation position of the main body side rib. The fixture according to claim 1 or 2,
The fixing tool in which the cross-sectional area of the internal space perpendicular to the extending direction of the internal space is larger than the cross-sectional area of the electric wire inserted into the internal space at the position where the lid-side rib is formed. The fixture according to any one of claims 1 to 3,
The fixture in which the thickness in the direction orthogonal to the extending direction and the projecting direction of the main body side rib and the lid side rib is uniform. The fixture according to any one of claims 1 to 4,
The main body member protrudes from the outer wall surface of the main body side arm,
With
The lid member is a lid-side arm projecting from its outer wall surface,
With
The hinge portion is connected to the main body member via the main body side arm portion at one end portion of both end portions sandwiching the bent portion, and to the lid member via the lid side arm portion at the other end portion. A series of fixtures.

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