Wire fixing structure and protector

Abstract

To provide a wire fixing structure capable of performing fixing work of a wire while suppressing falling of a tie band during the work, and a protector in which the wire fixing structure is provided.SOLUTION: A wire fixing structure 2 comprises: a wire placement projection 21; a tie band 22; and a temporary tie band holding part 23 which is provided in the wire placement projection 21 at a side where a lock portion 222 of the tie band 22 penetrating a band portion 221 through a penetration hole 212 for fixture is positioned, and temporarily holds the tie band 22, after the band portion 221 penetrates the penetration hole 212 for fixture, in a state where the side of the lock portion 222 is pushed up and bent in a push-up direction D13 in which the side of the lock portion is separated from a pedestal until the other end side is passed through the lock portion 222.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to an electric wire fixing structure for fixing an electric wire, and a protector provided with the electric wire fixing structure. [Background technology]

[0002] Conventionally, there is known an electric wire fixing structure that fixes an electric wire using a tie band (for example, see Patent Document 1). The tie band is a member having a bendable band portion and a lock portion that is integrally provided on one end side of the band portion and receives and holds the other end side of the band portion bent into a ring shape to maintain the ring shape. The electric wire fixing structure of Patent Document 1 is structured to fix an electric wire to the outer surface of a protector using this tie band. In this electric wire fixing structure, an electric wire placing protrusion is provided on the outer surface of the protector, on which the electric wire is placed on a placing portion on the tip side. The band portion of the tie band passes through a through hole provided in this electric wire placing protrusion, is bent into a ring shape with the placing portion and the electric wire on the inside, and is passed through and held by the lock portion, thereby fixing the electric wire to the electric wire placing protrusion. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2018-074837 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the electric wire fixing structure of the above-mentioned Patent Document 1, during the work of fixing the electric wire with the tie band, the band portion that passes through the through hole of the electric wire placement projection may become free before the annular bending and the locking portion holds the electric wire. If a force that pulls the locking portion is applied in this state, the band portion may come out of the through hole of the electric wire placement projection and the tie band may fall off, which may require the work of fixing the electric wire to be redone from the beginning, starting from passing the band portion through.

[0005] Therefore, the present invention focuses on the above-mentioned problems and aims to provide an electric wire fixing structure that can perform the work of fixing an electric wire while preventing the tie band from falling off during the work, and a protector provided with the electric wire fixing structure. [Means for solving the problem]

[0006] In order to solve the above problem, the electric wire fixing structure has an electric wire placing projection that is protruded from a predetermined base, a longitudinal intermediate portion of an electric wire being placed on a placing portion provided on a tip side of the electric wire placing projection, and a fixing through hole for fixing the electric wire, the intermediate portion of which is placed on the placing portion, to the electric wire placing projection, on the base side of the placing portion; a bendable band portion; and a lock portion that is integrally provided on one end side of the band portion and that receives and holds the other end side of the band portion bent into a ring shape to maintain the ring shape, and the band portion has the fixing through hole in a direction perpendicular to the longitudinal direction. and a tie band temporary holding portion that is provided on the wire mounting projection on a side where the locking portion of the tie band is located after the band portion has passed through the fixing through-hole, and that temporarily holds the locking portion side of the tie band after the band portion has passed through the fixing through-hole in a bent state by pushing it up in a push-up direction away from the base until the other end side is passed through the locking portion.

[0007] In addition, in order to solve the above-mentioned problems, the protector is characterized in that it comprises a cylindrical protector body that houses an electric wire inside, and a structure for fixing the electric wire extending from the protector body and arranged outside the protector body, or an external electric wire that is arranged outside the protector body separately from the electric wire, to an outer surface of the protector body, and the above-mentioned electric wire fixing structure in which the outer surface of the protector body serves as the base. Effect of the Invention

[0008] According to the above-described electric wire fixing structure and protector, the work of fixing the electric wires can be performed while preventing the tie band from falling off during the work. [Brief description of the drawings]

[0009] [Figure 1] 1 is a perspective view showing a protector provided with an electric wire fixing structure according to one embodiment, together with an electric wire fixed by the electric wire fixing structure; [Diagram 2] 2 is a perspective view showing the protector with the electric wire fixing structure shown in FIG. 1 in a state in the middle of an electric wire fixing operation. FIG. [Diagram 3] 3 is a cross-sectional view of the protector with the electric wire fixing structure shown in FIG. 2 taken along line V11-V11 in FIG. 2. [Figure 4] FIG. 4 is a cross-sectional view similar to FIG. 3 showing a protector having an electric wire fixing structure of a comparative example for comparison with the embodiment shown in FIGS. 1 to 3. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] An embodiment of the protector will now be described.

[0011] Fig. 1 is a perspective view showing a protector provided with an electric wire fixing structure according to one embodiment, together with an electric wire fixed by the electric wire fixing structure. Fig. 2 is a perspective view showing the protector with the electric wire fixing structure shown in Fig. 1 in a state in the middle of an electric wire fixing operation, and Fig. 3 is a cross-sectional view showing the protector with the electric wire fixing structure shown in Fig. 2, taken along line V11-V11 in Fig. 2.

[0012] The protector 1 of this embodiment is a resin member formed in a square tube shape to house and protect an electric wire inside, and is attached to a body panel of a vehicle or the like, and an electric wire W1 is fixed to its outer surface via an electric wire fixing structure 2. Here, although not specified in this embodiment, the electric wire W1 to be fixed by the electric wire fixing structure 2 may be either an internal electric wire or an external electric wire as described below. The internal electric wire referred to here is an electric wire that is housed in the protector 1, extends, and is disposed by being turned to the outside. The external electric wire is an electric wire that is disposed outside the protector 1 separately from the internal electric wire. The protector 1 includes a protector main body 11 in a square tube shape and an electric wire fixing structure 2 constructed on its outer surface.

[0013] The protector body 11 is a resin-made member formed into a cylindrical shape and accommodating the internal electric wires therein, and has a protector base 111 and a protector cover 112. The protector base 111 is a resin-made member formed into a gutter shape and accommodating the internal electric wires therein. The protector cover 112 is a resin-made cover member that covers the gutter opening in the protector base 111. The electric wire fixing structure 2 is constructed on the outer surface 112a of the protector cover 112, and is structured to fix an electric wire W1 to be fixed as an internal electric wire or an external electric wire. The electric wire fixing structure 2 includes an electric wire placement projection 21, a tie band 22, and a tie band temporary holding portion 23.

[0014] The electric wire placing projection 21 is provided on the outer surface 112a of the protector cover 112 as a base, and a mounting portion 211 provided on the tip side of the electric wire placing projection 21 is a portion on which a middle portion W11 of the electric wire W1 in the longitudinal direction D11 is placed. The electric wire placing projection 21 is provided with a fixing through hole 212 for the electric wire W1 on the protector cover 112 side of the mounting portion 211. The fixing through hole 212 is a through hole for fixing the electric wire W1 with the middle portion W11 placed on the mounting portion 211 to the electric wire placing projection 21 with a tie band 22.

[0015] The tie band 22 is a resin member for fixing the electric wire W1 to the electric wire placing projection 21, and has a band portion 221 and a lock portion 222. The band portion 221 is a bendable belt-like portion. The lock portion 222 is integrally provided on one end side of the band portion 221, and as shown in FIG. 1, is a portion that receives and holds the other end side of the band portion 221 bent into a ring shape to maintain the ring shape. When fixing the electric wire W1, the tie band 22 first passes the band portion 221 through the fixing through hole 212 of the electric wire placing projection 21 in the cross direction D12 with respect to the longitudinal direction D11. Thereafter, the tie band 22 is bent into a ring shape with the placing portion 211 and the middle portion W11 of the electric wire W1 facing inward, and the electric wire W1 is fixed to the electric wire placing projection 21 in a state where the other end side is inserted into and held by the lock portion 222.

[0016] The tie band temporary holding portion 23 is a portion that temporarily holds the tie band 22 during an intermediate stage of fastening the electric wire W1, and is provided on the side of the electric wire mounting projection 21 where the lock portion 222 of the tie band 22 is located when the band portion 221 passes through the fastening through-hole 212. The tie band temporary holding portion 23 temporarily holds the lock portion 222 side of the tie band 22 after the band portion 221 passes through the fastening through-hole 212 as follows: That is, the tie band temporary holding portion 23 temporarily holds the lock portion 222 side of the tie band 22 in a bent state by pushing it up in a pushing-up direction D13 away from the outer surface 112a of the protector cover 112 until the other end side of the band portion 221 is passed through the lock portion 222.

[0017] The tie band temporary holding portion 23 is a protruding portion provided on the surface portion 21a on the outer surface of the electric wire placing projection 21 on the side where the lock portion 222 of the tie band 22 is located with the band portion 221 passing through the fixing through hole 212. The tie band temporary holding portion 23 has a curved surface 231 that extends from the hole edge 212a on the outer surface 112a side of the protector cover 112 of the fixing through hole 212 and curves toward the pushing-up direction D13. The tie band temporary holding portion 23 pushes up the lock portion 222 side of the tie band 22 with the curved surface 231 and temporarily holds it in a bent state. Here, the tie band temporary holding portion 23 is a portion provided on the surface portion 21a on the lock portion 222 side of the electric wire placing projection 21 in a rib-like protruding shape, and the rib side edge on the opposite side to the outer surface 112a of the protector cover 112 forms the curved surface 231 that pushes up the tie band 22. Further, the tie-band temporary-holding portion 23 is a portion that protrudes from the surface portion 21a so as to extend from the hole edge 212a of the fixing through-hole 212 toward the outer surface 112a of the protector cover 112. The hole edge 212a side of the tie-band temporary-holding portion 23 forms the curved surface 231.

[0018] Before describing the effects obtained in the electric wire fixing structure 2 of the protector 1 of this embodiment, a comparative example for comparison with the electric wire fixing structure 2 of this embodiment will be described.

[0019] Fig. 4 is a cross-sectional view similar to Fig. 3 of a protector having an electric wire fixing structure of a comparative example for comparison with the embodiment shown in Figs. 1 to 3. In Fig. 4, components equivalent to those shown in Fig. 3 are given the same reference numerals as in Fig. 3 only for those necessary for explanation, and hereinafter, a duplicate explanation of those equivalent components will be omitted.

[0020] The wire fixing structure 6 in the protector 5 of the comparative example shown in Fig. 4 is different from the protector 1 of the embodiment shown in Figs. 1 to 3 in that the tie band temporary holding portion 23 is not provided. Therefore, in this modification, when the band portion 221 passes through the fixing through hole 212, the lock portion 222 side of the tie band 22 is in a free state in which it extends linearly from the hole edge 212a on the lock portion 222 side of the fixing through hole 212. In this state, when a force F11 that pulls the lock portion 222 is applied, the band portion 221 may come out of the fixing through hole 212 and the tie band 22 may fall off. If the tie band 22 falls off, the fixing work of the electric wire W1 must be redone from the passage of the band portion 221, which is a burden on the worker.

[0021] In contrast to this comparative example, the electric wire fixing structure 2 and the protector 1 of the above-described embodiment can provide the following effects. That is, according to this embodiment, the lock portion 222 side of the tie band 22 after the band portion 221 passes through the fixing through hole 212 is temporarily held in a bent state by being pushed up in the pushing-up direction D13 by the tie band temporary holding portion 23. Due to this temporary holding, even if a force F11 that pulls the lock portion 222 is applied to the tie band 22, the band portion 221 is caught by the tie band temporary holding portion 23, and the band portion 221 is prevented from coming off the fixing through hole 212. In this way, according to this embodiment, the fixing work of the electric wire W1 can be performed while preventing the tie band 22 from falling off during the work.

[0022] In this embodiment, the tie band temporary holding portion 23 is a protruding portion protruding from the surface portion 21a on the lock portion 222 side of the outer surface of the electric wire mounting projection 21. The tie band temporary holding portion 23 pushes up the lock portion 222 side of the tie band 22 and temporarily holds it in a bent state with a curved surface 231 that extends from the hole edge 212a of the fixing through hole 212 and curves toward the pushing-up direction D13. With this configuration, the tie band temporary holding portion 23 for temporarily holding the tie band 22 can smoothly guide the other end side of the band portion 221 opposite to the lock portion 222 along the curved surface 231 to pass through the fixing through hole 212.

[0023] In this embodiment, the tie band temporary holding portion 23 is a portion that protrudes in a rib shape from the surface portion 21a of the electric wire mounting projection 21 on the lock portion 222 side, and the rib side edge forms a curved surface 231 that pushes up the lock portion 222 side of the tie band 22. According to this configuration, it is possible to improve the strength of the electric wire mounting projection 21 having the rib-shaped tie band temporary holding portion 23 formed on its outer surface.

[0024] In this embodiment, the tie band temporary holding portion 23 extends from the hole edge 212a of the fixing through hole 212 to the outer surface 112a of the protector cover 112, and the hole edge 212a side forms the curved surface 231. According to this configuration, the tie band temporary holding portion 23 extends long from the hole edge 212a of the fixing through hole 212 to the outer surface 112a of the protector cover 112, thereby improving the strength of the wire mounting projection 21 on whose outer surface the tie band temporary holding portion 23 is formed.

[0025] In this embodiment, the electric wire fixing structure 2 has a structure in which the electric wire placing projection 21 protrudes from the outer surface 112a of the protector cover 112 as a base. According to this configuration, the electric wire fixing structure 2 is constructed by protruding the electric wire placing projection 21 from the outer surface of the protector cover 112, not from the protector base 111 which tends to have a complicated structure, and therefore the manufacturing cost of the electric wire fixing structure 2 can be reduced.

[0026] The above-described embodiment merely shows a representative form of the electric wire fixing structure and the protector. The electric wire fixing structure and the protector are not limited to this, and can be implemented in various modifications.

[0027] For example, in the above-described embodiment, the protector 1 that is attached to the body panel BP1 of the vehicle is illustrated as an example of the protector. However, the protector is not limited to this, and the specific installation location is not important.

[0028] In the above-described embodiment, as an example of the protector, the protector 1 having a rectangular cylindrical shape is illustrated in Figures 1 to 3. However, the protector is not limited to the illustrated example, and the external shape of the protector may be any cylindrical shape.

[0029] In the above-described embodiment, the tie band temporary holding portion 23 is provided as an example of the tie band temporary holding portion, and is provided on the surface portion 21a of the electric wire mounting projection 21 and temporarily holds the tie band 22 in a bent state by pushing up the tie band 22 with the curved surface 231. However, the tie band temporary holding portion is not limited to this, and may be provided as, for example, a rod-shaped projection provided on a base away from the electric wire mounting projection and pushing up the tie band with its tip. However, as described above, the tie band temporary holding portion 23 provided on the surface portion 21a of the electric wire mounting projection 21 and pushing up the tie band 22 with the curved surface 231 allows the band portion 221 to be smoothly inserted into the fixing through-hole 212 along the curved surface 231.

[0030] In the above-described embodiment, as an example of the tie band temporary holding portion, the tie band temporary holding portion 23 is exemplified, which is provided in a rib-like protrusion on the surface portion 21a of the electric wire placing projection 21 and has a curved surface 231 at its rib side edge that pushes up the lock portion 222 side of the tie band 22. However, the tie band temporary holding portion is not limited to this, and may be, for example, a block-like one having a curved surface on the surface portion of the electric wire placing projection, or an L-shaped hook-like one having a curved surface on the inside. However, as described above, the tie band temporary holding portion 23 is provided in a rib-like protrusion on the surface portion 21a of the electric wire placing projection 21 and has a curved rib side edge at its rib side edge that pushes up the lock portion 222 side of the tie band 22.

[0031] In the above-described embodiment, the tie band temporary holding portion 23 extending from the hole edge 212a of the fixing through hole 212 to the outer surface 112a of the protector cover 112 is exemplified as an example of the tie band temporary holding portion. However, the tie band temporary holding portion is not limited to this, and may be, for example, a portion formed as a local protrusion in the vicinity of the hole edge of the fixing through hole. However, as described above, by extending the tie band temporary holding portion 23 from the hole edge 212a of the fixing through hole 212 to the outer surface 112a of the protector cover 112, the strength of the wire placing projection 21 can be improved.

[0032] In the above-described embodiment, the electric wire fixing structure 2 in which the electric wire placing projection 21 is protruding from the outer surface 112a of the protector cover 112 as a base is exemplified as an example of the electric wire fixing structure. However, the electric wire fixing structure is not limited to this, and the outer surface of an electric connection box or various terminal blocks other than the protector may be used as the base from which the electric wire placing projection is protruding, and the installation destination can be set arbitrarily. However, by using the outer surface 112a of the protector 1, which is often installed near the electric wire W1 due to its use, as the base of the electric wire fixing structure 2, the electric wire fixing structure 2 can be effectively utilized. Note that even when the outer surface of the protector is used as the base, the protruding location of the electric wire placing projection is not limited to the outer surface of the protector cover, and the protruding location of the electric wire placing projection may be the outer surface of the protector base. However, by using the outer surface 112a of the protector cover 112 as a base for the electric wire fixing structure 2, the manufacturing cost for the electric wire fixing structure 2 can be reduced as described above. [Explanation of symbols]

[0033] 1 Protector 2 Wire fixing structure 11 Protector body 21 Wire placement protrusion 21a side part 22 Thai Band 23 Tie band temporary holding part 111 Protector Base 112 Protector cover 112a Exterior 211 Placement section 212 Fixing through hole 212a foramen rim 221 Band Club 222 Rock Department 231 Curved Surface D11 Longitudinal direction D12 Cross direction D13 Push-up direction F11 force W1 electric wire W11 middle part

Claims

1. an electric wire mounting protrusion that is protruding from a predetermined base, a middle portion of an electric wire in a longitudinal direction is mounted on a mounting portion provided at a tip side of the electric wire mounting protrusion, and a fixing through hole for fixing the electric wire whose middle portion is mounted on the mounting portion is provided on the base side of the mounting portion; a tie band including a bendable band portion and a lock portion that is integrally provided on one end side of the band portion and receives and holds the other end side of the band portion bent into a ring shape to maintain the ring shape, the band portion passing through the fixing through hole in a direction intersecting the longitudinal direction and bent into the ring shape with the placement portion and the electric wire on the inside, and fixing the electric wire to the electric wire placement projection with the other end side held by the lock portion; a tie band temporary holding portion provided on the electric wire mounting projection on a side where the lock portion of the tie band is located after the band portion has passed through the fixing through-hole, the tie band temporary holding portion temporarily holding the lock portion side of the tie band after the band portion has passed through the fixing through-hole in a bent state by pushing up in a pushing-up direction away from the base until the other end side is passed through the lock portion; An electric wire fixing structure comprising:

2. The wire fixing structure according to claim 1, characterized in that the tie band temporary holding portion is a protruding portion protruding from the outer surface of the wire mounting projection on the surface portion on the side where the locking portion of the tie band is located after the band portion has passed through the fixing through hole, and has a curved surface that extends from the hole edge on the base side of the fixing through hole and curves toward the pushing-up direction, and the curved surface pushes up the locking portion side of the tie band and bents it to temporarily hold it in a bent state.

3. The wire fixing structure according to claim 2, characterized in that the tie band temporary holding portion is a rib-like protruding portion on the surface portion, and the rib side edge opposite the base is the curved surface.

4. The wire fixing structure according to claim 2, characterized in that the tie band temporary holding portion is a protruding portion on the surface portion so as to extend from the edge of the fixing through hole to the base side, and the hole edge side is the curved surface.

5. A cylindrical protector body that houses electric wires inside; A structure for fixing the electric wire extending from the protector body and disposed outside the protector body, or an external electric wire disposed outside the protector body separately from the electric wire, to an outer surface of the protector body, the structure comprising: an electric wire fixing structure according to any one of claims 1 to 4, the electric wire fixing structure using the outer surface of the protector body as the base; A protector comprising:

6. the protector body is a member having a protector base formed in a gutter shape and accommodating the electric wire inside, and a protector cover covering a gutter opening in the protector base, 6. The protector according to claim 5, wherein the electric wire fixing structure is structured such that the electric wire placing projection is provided protruding from an outer surface of the protector cover as the base.

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