JP2022059661A - Protector - Google Patents

Abstract

To provide a protector capable of suppressing occurrence of noise due to vibration during the traveling of a vehicle while maintaining a function of sucking an extra length part of a wiring material.SOLUTION: A protector 1 comprises: a main body part 2; and a housing space part 3 that is formed in the main body part 2 and draws and houses a wiring material W from an external part via an open part 2a. The housing space part 3 includes a narrow small region 35 where each liner part Ws of the wiring material W is arranged in each of a pair of end part regions 30 and 31 in a width direction when viewing it from a vertical direction of the main body part 2, and in a center region 32 that is a space between the pair of end part regions 30 and 31, a folding part Wt connected to the pair of liner parts Ws of the wiring material W is arranged, and a depth side end part in a longitudinal direction in view of the vertical direction is contained. In a pair of wall surfaces 12a and 22a of the main body part 2, an interval Db in the vertical direction of the center region 32 is formed narrower than an interval Da in the vertical direction of the pair of end part regions 30 and 31 in the narrow small region 35.SELECTED DRAWING: Figure 3

Description

The present invention relates to a protector.

The wire harness allocated to the slide seat and the slide door mounted on an automobile or the like has an extra length portion so that the slide portion can be slidable. The wire harness including the extra length portion is housed and protected in, for example, a protector or the like (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2018-10206

By the way, in the wire harness housed in the protector, an abnormal noise may be generated when the extra length portion hits the inner surface of the case due to the vibration during traveling of the vehicle. The extra length portion has a folded portion in which the wire harness is folded back and a linear portion in a linear state. When the wire harness is pulled (pushed) into the protector through the opening, the linear portion becomes longer and the folded portion separates from the opening. On the other hand, when the wire harness is pulled out from the protector through the opening, the linear portion becomes shorter and the folded portion approaches the opening.

A gap is provided between the extra length portion in the protector and the case in order to easily pull the wire harness into the protector and pull it out of the protector. Therefore, when vibration of a predetermined frequency is transmitted to the folded portion of the extra length portion, the folded portion may interlock and hit the inner surface of the case.

The present invention has been made in view of the above problems, and provides a protector capable of suppressing the generation of abnormal noise due to vibration during vehicle running while maintaining the function of absorbing the extra length portion of the wiring material. The purpose is to do.

In order to achieve the above object, the protector according to the present invention extends in the longitudinal direction and is formed in a main body portion having a pair of openings and the main body portion, and is a wiring material from the outside through the openings. The accommodation space portion is provided with a storage space portion for retracting and accommodating the main body portion, and the accommodation space portion is viewed from the vertical direction orthogonal to the width direction and the longitudinal direction of the main body portion in the accommodation state in which the wiring material is accommodated. In the pair of end regions in the width direction, linear portions of the wiring material are arranged respectively, and in the central region between the pair of end regions when viewed from the vertical direction in the accommodation state. , A folded portion connected to the pair of linear portions of the wiring material is arranged, and in the longitudinal direction when viewed from the vertical direction, the intrusion direction side in which the wiring material invades the accommodation space portion. It has a narrow region including a back end portion which is an end portion, and the main body portion forms a part of the accommodation space portion and has a pair of facing surfaces facing each other in the vertical direction, and the pair of the above. The facing surface is characterized in that, in the narrow region, the distance between the central region in the vertical direction is narrower than the distance between the pair of end regions in the vertical direction.

Further, in the protector, the pair of facing surfaces are formed so that the distance between the central region in the vertical direction is narrowed toward the inner end portion in the longitudinal direction in the narrow region.

Further, in the protector, the pair of facing surfaces are formed in an arch shape so that the cross-sectional shape seen from the longitudinal direction bulges inward in the vertical direction with the central region as the apex.

The protector according to the present invention has an effect that it is possible to suppress the generation of abnormal noise due to vibration during vehicle running while maintaining the function of absorbing the extra length portion of the wiring material.

FIG. 1 is a perspective view showing a schematic configuration of a protector according to an embodiment. FIG. 2 is a plan view showing a schematic configuration of the protector according to the embodiment. FIG. 3 is an exploded perspective view showing a schematic configuration of the protector according to the embodiment. 4 (A) and 4 (B) are schematic views showing a cross section of the protector according to the embodiment as viewed from the width direction. 5 (A) to 5 (C) are schematic views showing a cross section of the protector according to the embodiment as viewed from the longitudinal direction.

Hereinafter, embodiments of the protector according to the present invention will be described in detail with reference to the drawings. The present invention is not limited to the embodiments shown below. In addition, the components in the following embodiments include those that can be easily replaced by those skilled in the art, or those that are substantially the same.

[Embodiment]
FIG. 1 is a perspective view showing a schematic configuration of a protector according to an embodiment. FIG. 2 is a plan view showing a schematic configuration of the protector according to the embodiment. FIG. 3 is an exploded perspective view showing a schematic configuration of the protector according to the embodiment. 4A and 4B are schematic views showing a cross section of the protector according to the embodiment as viewed from the width direction. 5A, 5B, and 5C are schematic views showing a cross section of the protector according to the embodiment as viewed from the longitudinal direction. The protectors shown in FIGS. 1 and 3 show a state in which the wiring material W is assembled. The wiring material W shown in FIGS. 2, 4 (A), 4 (B), and 5 (A) to 5 (C) is indicated by a alternate long and short dash line and is omitted. (A) of FIG. 4 corresponds to the cross-sectional view taken along the line AA shown in FIG. FIG. 4B corresponds to a cross-sectional view taken along the line BB shown in FIG. FIG. 5A corresponds to a cross-sectional view taken along the line CC shown in FIG. FIG. 5B corresponds to a cross-sectional view taken along the line DD shown in FIG. FIG. 5C corresponds to the cross-sectional view taken along the line EE shown in FIG.

The X direction in the figure is the longitudinal direction of the protector in this embodiment. The Y direction is the width direction (or the lateral direction) of the protector in the present embodiment, and is a direction orthogonal to the longitudinal direction. The Z direction is the vertical direction of the protector in the present embodiment, and is a direction orthogonal to the longitudinal direction and the width direction. The Y direction and the Z direction may be along the vertical direction, for example, with the protector mounted on the vehicle.

In the protector 1 of the present embodiment shown in FIGS. 1 to 3, for example, a part of the wiring material W allocated to a slide sheet, a slide door, or the like mounted on a vehicle such as an automobile is used as an extra length portion inside. It is to be housed and protected. The wiring material W is, for example, a wire bundle for supplying electric power to electrical components provided on a slide sheet, a slide door, or the like, and a tubular exterior material (for example, a corrugated tube) that covers the wire bundle. Etc.) and is a wire harness. The wiring material W has relatively high flexibility and good flexibility. The portion of the wiring material W housed inside the protector 1 is interlocked with, for example, the slide movement of the slide sheet or the slide door. The protector 1 of the present embodiment constitutes a wire harness WH in a state where the wiring material W is housed inside. The protector 1 includes a main body portion 2 and a storage space portion 3.

The main body portion 2 extends in the longitudinal direction and has a pair of openings 2a and 2b on one side in the longitudinal direction. The wiring material W is inserted into each of the openings 2a and 2b in a state where a part of the wiring material W is housed inside the protector 1. A part of the wiring material W is accommodated in the accommodation space portion 3. For example, one end of the wiring material W is led out from the accommodation space 3 to the outside through the opening 2a, and is electrically connected to an electrical component provided on the slide sheet, and the other end accommodates the wiring material W. It is led out from the space portion 3 to the outside through the opening portion 2b, and is electrically connected to a battery or the like mounted on the vehicle. One end of the portion of the wiring material W accommodated in the accommodation space 3 is configured to be able to be taken in and out between the accommodation space 3 and the outside through the opening 2a. On the other hand, of the wiring material W, the other end of the portion accommodated in the accommodation space 3 is bound to a part of the main body 2 protruding outward from the opening 2b by a binding band or the like, and the opening 2b. The access between the accommodation space 3 and the outside is restricted through the space. The main body 2 is formed of, for example, an insulating synthetic resin or the like. In the main body 2, a mounting portion provided on the outer surface of the main body 2 is fastened to the vehicle body by a fastening member such as a bolt. The main body 2 is composed of an upper case 10 and a lower case 20. The upper case 10 and the lower case 20 form the main body 2 in an assembled state in which they are assembled to each other.

The upper case 10 is arranged on the upper side of the main body 2. The upper case 10 has an opening 11, a ceiling wall portion 12, and a side wall portion 13. The opening 11 is formed at the lower end of the upper case 10. The opening 11 is closed by the lower case 20 in the assembled state (main body 2) in which the upper case 10 is assembled to the lower case 20. The side wall portion 13 is erected from the outer peripheral end of the ceiling wall portion 12 in a direction intersecting the ceiling wall portion 12 (for example, in the vertical direction). The upper case 10 is locked to the lower case 20 by a locking structure.

The ceiling wall portion 12 faces the bottom wall portion 22 of the lower case 20, which will be described later, in the vertical direction in the main body portion 2. The ceiling wall portion 12 has a wall surface 12a on the inner side in the downward direction. The ceiling wall portion 12 of the present embodiment has a portion in which the cross-sectional shape seen from the longitudinal direction is formed in a bow shape so as to bulge inward in the downward direction. Specifically, the ceiling wall portion 12 is formed so that the degree of curvature that swells downward inward in the cross-sectional shape seen from the longitudinal direction increases as the distance from the openings 2a and 2b in the longitudinal direction increases. For example, the ceiling wall portion 12 at the position EE shown in FIG. 2 has a flat cross-sectional shape seen from the longitudinal direction in the width direction ((A) in FIG. 5). On the other hand, the ceiling wall portion 12 at the position DD shown in FIG. 2 is formed in a bow shape so that the cross-sectional shape seen from the longitudinal direction bulges inward in the downward direction in the width direction. Further, the ceiling wall portion 12 at the position CC shown in FIG. 2 is formed in a bow shape so that the cross-sectional shape seen from the longitudinal direction swells further downward and inward than the ceiling wall portion 12 at the position DD. To. The position where the cross-sectional shape of the ceiling wall portion 12 changes from flat to arcuate when viewed from the longitudinal direction is in the middle of the longitudinal direction of the upper case 10, but may be on the openings 2a and 2b side, or in the longitudinal direction. It may be near the center.

The lower case 20 is arranged on the lower side of the main body 2. The lower case 20 has an opening 21, a bottom wall portion 22, and a side wall portion 23. The opening 21 is formed at the upper end of the lower case 20. The opening 21 is closed by the upper case 10 in the main body 2. The side wall portion 23 is erected from the outer peripheral end of the bottom wall portion 22 in a direction intersecting the bottom wall portion 22 (for example, in the vertical direction). The side wall portion 23 supports the upper case 10 in the main body portion 2.

The bottom wall portion 22 faces the ceiling wall portion 12 in the vertical direction in the main body portion 2. The bottom wall portion 22 has a wall surface 22a on the inner side in the upward direction. The wall surface 12a and the wall surface 22a are a pair of facing surfaces facing each other in the vertical direction in the main body 2. The bottom wall portion 22 of the present embodiment has a portion in which the cross-sectional shape seen from the longitudinal direction is formed in an arc shape so as to bulge inward in the upward direction. Specifically, the bottom wall portion 22 is formed so that the degree of curvature that swells inward in the cross-sectional shape when viewed from the longitudinal direction increases as the distance from the openings 2a and 2b in the longitudinal direction increases. For example, the bottom wall portion 22 at the position EE shown in FIG. 2 has a flat cross-sectional shape seen from the longitudinal direction in the width direction ((A) in FIG. 5). On the other hand, the bottom wall portion 22 at the position DD shown in FIG. 2 is formed in a bow shape so that the cross-sectional shape seen from the longitudinal direction bulges inward in the upward direction in the width direction. Further, the bottom wall portion 22 at the position CC shown in FIG. 2 is formed in a bow shape so that the cross-sectional shape seen from the longitudinal direction bulges further upward and inward from the bottom wall portion 22 at the position DD. To. The position where the cross-sectional shape of the bottom wall portion 22 changes from flat to arcuate when viewed from the longitudinal direction is in the middle of the longitudinal direction of the lower case 20, but may be on the openings 2a and 2b, or is the center in the longitudinal direction. It may be in the vicinity.

The accommodation space portion 3 is formed in the main body portion 2 and communicates with the outside through the openings 2a and 2b. The accommodating space portion 3 retracts (pushes in) a part of the wiring material W as an extra length portion from the outside through the openings 2a and 2b. The wiring material W accommodated in the accommodation space portion 3 is interlocked with the slide movement of the slide sheet or the slide door, for example. The accommodation space portion 3 of the present embodiment has a pair of end regions 30 and 31, a central region 32, and a narrow region 35.

As shown in (B) of FIG. 4 and (A) to (C) of FIG. 5, the end regions 30 and 31 are in a housed state in which the wiring material W is housed in the housed space portion 3. Spaces at both ends in the width direction when the main body 2 is viewed from above and below. In the end regions 30 and 31, linear portions Ws of the wiring material W accommodated in the accommodation space 3 are arranged respectively. The linear portion Ws is a portion of the wiring material W accommodated in the accommodation space portion 3 in which the linear state is maintained along the longitudinal direction. In the accommodation state in which the wiring material W is accommodated in the accommodation space portion 3, when a part of the wiring material W is taken in and out from the opening 2a, the linear portion Ws apparently changes from one in the longitudinal direction to the other. It increases toward and decreases from the other to the other.

The end regions 30 and 31 are formed between a part of the wall surface 12a of the ceiling wall portion 12 and a part of the wall surface 22a of the bottom wall portion 22, respectively, in the vertical direction. In each of the end regions 30 and 31, the distance Da between a part of the wall surface 12a and a part of the wall surface 22a is set wider than, for example, the outer diameter of the wiring material W accommodated in the accommodation space portion 3. ((C) in FIG. 5). The interval Da is substantially constant in the longitudinal direction, and is larger than the outer diameter of at least the linear portion Ws of the wiring material W.

The central region 32 is located between the pair of end regions 30 and 31 when the main body 2 is viewed from above and below in the accommodation state in which the wiring material W is accommodated in the accommodation space 3, and the wiring material 32 is located between the pair of end regions 30 and 31. Of W, it is a region where a folded portion Wt connected to a pair of linear portions Ws is arranged. The folded-back portion Wt is a portion of the wiring material W accommodated in the accommodation space portion 3 that is folded back in a U-shape from one of the longitudinal directions of the main body portion 2 to the other. When a part of the wiring material W is taken in and out from the opening 2a in the accommodation state in which the wiring material W is accommodated in the accommodation space portion 3, the folded-back portion Wt apparently has one to the other or the other in the longitudinal direction. Move from to one side.

The central region 32 is formed in the vertical direction between a part of the wall surface 12a of the ceiling wall portion 12 and a part of the wall surface 22a of the bottom wall portion 22. In the central region 32, the distance Db between a part of the wall surface 12a and a part of the wall surface 22a is not constant in the longitudinal direction and the width direction, for example, and is directed toward the end opposite to the openings 2a and 2b in the longitudinal direction. Is formed narrowly. Further, the spacing Db in the central region 32 is formed so as to widen from the center to both ends in the width direction, for example.

The narrow region 35 is a region including a back end portion, which is an end portion on the intrusion direction side in which the wiring material W invades the accommodation space portion 3, in the longitudinal direction when viewed from the vertical direction. The back end of the present embodiment is an end opposite to the pair of openings 2a and 2b in the longitudinal direction. The narrow region 35 is formed between a part of the wall surface 12a of the ceiling wall portion 12 and a part of the wall surface 22a of the bottom wall portion 22 in the vertical direction. As shown in (A) of FIG. 4, (B) of FIG. 4, and (C) of FIG. 5, the wall surface 12a and the wall surface 22a have a pair of vertical spacing Db of the central region 32 in the narrow region 35. It is formed narrower than the distance Da in the vertical direction of the end regions 30 and 31. The narrow region 35 is a region in which the vertical distance Db between the wall surface 12a and the wall surface 22a is narrower than the vertical distance Da between the wall surface 12a and the wall surface 22a in the end regions 30 and 31. The narrow region 35 of the present embodiment is, for example, a region including from the middle of the longitudinal direction (for example, near the center) when viewed from the vertical direction to the back end portion.

In the narrow region 35, the distance Db between a part of the wall surface 12a and a part of the wall surface 22a is set to be narrower than, for example, the outer diameter of the wiring material W accommodated in the accommodation space portion 3. The spacing Db in the narrow region 35 is not constant in the longitudinal and width directions and is at least smaller than the outer diameter of the folded portion Wt.

In the protector 1 of the present embodiment, the folded-back portion Wt of the wiring material W moves in the longitudinal direction, for example, as the slide sheet slides. When a part of the wiring material W is pulled out from the accommodation space 3 through the opening 2a, the folded-back portion Wt moves, for example, in the order of R position → Q position → P position in the longitudinal direction (FIG. FIG. 3). When the folded portion Wt moves from R to Q to P and approaches the openings 2a and 2b, the linear portion Ws becomes shorter. On the other hand, when a part of the wiring material W is drawn into the accommodation space 3 from the outside through the opening 2a, the folded portion Wt moves, for example, in the order of P position → Q position → R position in the longitudinal direction. .. When the folded portion Wt moves from P to Q to R and separates from the openings 2a and 2b, the linear portion Ws becomes long.

In the state where the linear portion Ws is shortened, for example, even if vibration during vehicle running is applied, the linear portion Ws is short, so that the folded portion Wt vibrates and hits the inner surface of the main body portion 2 to make an abnormal noise. Is rare. On the other hand, in the state where the linear portion Ws is long, the folded portion Wt is in the narrow region 35 and is sandwiched by the pair of wall surfaces 12a and the wall surface 22a from the vertical direction, so that even if vibration during vehicle running is applied. , The vibration of the folded portion Wt can be suppressed. As a result, it is possible to suppress the generation of abnormal noise due to the vibration of the folded portion Wt.

As described above, in the protector 1 of the present embodiment, in the pair of wall surfaces 12a and the wall surface 22a, in the narrow region 35 in the accommodation space portion 3, the distance Db in the vertical direction of the central region 32 is set to the end regions 30 and 31. It is formed narrower than the interval Da in the vertical direction.

Conventionally, in the protector 1, the wiring material W accommodated in the accommodation space portion 3 may generate an abnormal noise by hitting the wall surfaces 12a and 22a of the main body portion 2 due to vibration during vehicle traveling. When a part of the wiring material W is pulled out from the accommodation space 3 through the opening 2a, the linear portion Ws becomes shorter and the folded portion Wt approaches the opening 2a. When a part of the wiring material W is drawn into the accommodation space 3 from the outside through the opening 2a, the linear portion Ws becomes long and the folded portion Wt separates from the opening 2a.

A certain gap is required between the wiring material W and the wall surfaces 12a and 22a in order to facilitate the accession of the wiring material W to and from the accommodation space 3 via the opening 2a. When the folded-back portion Wt is away from the opening 2a (when the folded-back portion Wt is close to the rear end portion), the linear portion Ws becomes long. It may vibrate and hit each wall surface 12a, 22a. Therefore, according to the above configuration, the wall surfaces 12a, 22a and the folded portion Wt in the narrow region 35 where the linear portion Ws becomes long while securing the gap between the wall surfaces 12a, 22a in the end regions 30 and 31 and the linear portion Ws. Suppress the gap. As a result, it is possible to suppress the vibration of the folded portion Wt due to the vibration when the vehicle is running, and to suppress the generation of abnormal noise due to the vibration.

Further, in order to suppress the gap between the wall surfaces 12a and 22a and the folded portion Wt in the narrow region 35, it is not necessary to attach a non-woven fabric or the like to the wall surfaces 12a and 22a, so that the cost for suppressing the generation of abnormal noise is increased. It can be suppressed.

Further, in the protector 1 of the present embodiment, the pair of wall surfaces 12a and 22a are formed so that the space Db in the vertical direction of the central region 32 is narrowly formed toward the inner end portion in the longitudinal direction in the narrow region 35. As a result, the gap between the pair of wall surfaces 12a and 22a and the folded-back portion Wt gradually narrows toward the inner end portion in the longitudinal direction, so that the wall surfaces 12a and 22a in the narrow region 35 where the linear portion Ws becomes long are folded back. The gap with the partial Wt can be easily suppressed. On the other hand, a gap between the wall surfaces 12a and 22a and the folded-back portion Wt in the central region 32 other than the narrow region 35 where the linear portion Ws is shortened is secured, and the routing material W can be easily taken in and out of the accommodation space portion 3.

Further, in the protector 1 of the present embodiment, the pair of wall surfaces 12a and 22a are formed in an arch shape so that the cross-sectional shape seen from the longitudinal direction bulges inward in the vertical direction with the central region 32 as the apex. As a result, as compared with the case where the cross-sectional shape of one wall surface 12a (or wall surface 22a) is arcuate and the cross-sectional shape of the other wall surface 22a (or wall surface 12a) is linear among the pair of wall surfaces 12a and 22a. If the cross-sectional shapes of both the wall surfaces 12a and 22a are arcuate, the degree of curvature can be reduced and the decrease in the strength of the protector 1 can be suppressed.

In the above embodiment, the pair of wall surfaces 12a and 22a are formed in a bow shape so that the cross-sectional shape seen from the longitudinal direction bulges inward in the vertical direction with the central region 32 as the apex. It's not something. For example, the central portion of each of the wall surfaces 12a and 22a in the width direction may have a protrusion formed so as to project inward in the vertical direction. In this case, it is preferable that the protrusions are formed in the narrow region 35 so that the vertical spacing Db of the central region 32 is narrower than the vertical spacing Da of the pair of end regions 30 and 31. Further, it is preferable that the protrusion portion is formed so that the interval Db in the vertical direction of the central region 32 is narrowly formed toward the inner end portion in the longitudinal direction in the narrow region 35.

Further, in the above embodiment, the cross-sectional shapes of the wall surfaces 12a and 12b as seen from the longitudinal direction are formed in an arch shape so as to bulge inward in the vertical direction, and the wall surfaces 12a and 12b are directed from both ends to the center in the width direction. It is formed so as to be inclined, but is not limited to this. For example, in the width direction of the wall surface 12a, a step is provided between the end side wall surface forming a part of each of the end regions 30 and 31 and the narrow region side wall surface forming a part of the narrow region 35, respectively. The side wall surface of the narrow region may be formed in a bow shape so as to bulge inward in the vertical direction from the steps at both ends in the width direction toward the center. Then, in the width direction of the wall surface 22a, a step is provided between the end side wall surface forming a part of each of the end regions 30 and 31 and the narrow region side wall surface forming a part of the narrow region 35, respectively. The side wall surface of the narrow region may be formed in a bow shape so as to bulge inward in the vertical direction from the steps at both ends in the width direction toward the center.

Further, in the above embodiment, the narrow region 35 is a region including from the middle of the longitudinal direction (for example, near the center) to the back end portion when viewed from the vertical direction, but is not limited to this. Even if the narrow region 35 is a region including, for example, from one end (for example, the end on the openings 2a and 2b side) to the other end (back end) in the longitudinal direction when viewed from the vertical direction. good.

Further, in the above embodiment, the openings 2a and 2b are both formed on one side in the longitudinal direction of the main body 2, but the present invention is not limited thereto. For example, in the illustrated example, the opening 2a is formed at the tip of the wiring material insertion portion, which is a portion of the main body 2 protruding in one direction in the longitudinal direction and folded back to the other. It may extend toward the inner end portion, which is the other side of the direction, and the opening 2a may be formed at a position separated from the opening 2b in the longitudinal direction. In the wiring material insertion portion, for example, the tip of the opening 2a may extend near the center of the main body 2 in the longitudinal direction, or extend from the vicinity of the center to the back end side.

1 Protector 2 Main body 2a, 2b Opening 3 Storage space 10 Upper case 12 Ceiling wall 20 Lower case 22 Bottom wall 30, 31 End area 32 Central area 35 Narrow area W Wire distribution material Ws Straight part Wt Folded part

Claims (3)

A main body extending in the longitudinal direction and having a pair of openings,
It is provided with a storage space portion formed in the main body portion and for attracting and accommodating a wiring material from the outside through the opening portion.
The accommodation space is
When viewed from the vertical direction orthogonal to the width direction and the longitudinal direction of the main body in the accommodated state in which the wiring material is accommodated, the linear shape of the wiring material in the pair of end regions in the width direction. Each part is arranged,
When viewed from the vertical direction in the accommodation state, a folded portion connected to the pair of linear portions of the wiring material is arranged in the central region between the pair of the end regions.
It has a narrow region including a back end portion which is an end portion on the invasion direction side in which the wiring material invades the accommodation space portion in the longitudinal direction when viewed from the vertical direction.
The main body is
It forms a part of the accommodation space and has a pair of facing surfaces facing each other in the vertical direction.
The pair of facing surfaces
In the narrow region, the vertical spacing of the central region is formed to be narrower than the vertical spacing of the pair of end regions.
A protector characterized by that. The pair of facing surfaces
In the narrow region, the vertical spacing of the central region is formed narrower toward the inner end in the longitudinal direction.
The protector according to claim 1. The pair of facing surfaces
The cross-sectional shape seen from the longitudinal direction is formed in a bow shape so as to bulge inward in the vertical direction with the central region as the apex.
The protector according to claim 1 or 2.

Images