JP7845241B2 - Wiring fasteners and wiring fasteners - Google Patents

Description

This disclosure relates to a wiring fastener, a method for manufacturing a wiring fastener, and a method for manufacturing a three-dimensional object.

As a conventional wiring fastener, Patent Document 1 discloses one that is mounted on a flat plate and has a protrusion with a height that ensures a space between the bottom and top surfaces.

U.S. Industrial Design No. 401498

The conventional wiring fasteners described above had the problem of requiring spacers to be glued to the bottom of the flat plate to raise it and prevent contact between the wiring material and surrounding structures.

This disclosure was made to solve the above-mentioned problems and aims to provide a wiring fastener that can prevent contact between the wiring material and surrounding structures without using adhesive spacers.

The structure includes an adhesive portion attached to a structural member, a pair of space-retaining portions that rise from the side end of the adhesive portion and have an opening through which a fastening material for fixing the wiring material passes, with at least the upper part closed and the opening opening parallel to the axial direction of the wiring material , and a connecting portion that connects the upper end of the space-retaining portions and supports the wiring material by a contact surface which is the surface that contacts the wiring material , and the adhesive portion, the space-retaining portions, and the connecting portion are integrally formed.

The wiring fastener of this disclosure can prevent contact between the wiring material and surrounding structures without the need for adhesive spacers.

This figure shows an example of how to use the wiring fastener in Embodiment 1. This is a perspective view of the wiring fastener in Embodiment 1. This is a side view of the wiring fastener in Embodiment 1. This is a front view of the wiring fastener in Embodiment 1. Figure 1 shows (a) a view of the wiring material from the axial direction and (b) a part of Figure 1. This diagram shows the manufacturing flow of wiring fasteners. Figure (a) shows an example of the molding process, and Figure (b) shows the layering direction. This diagram shows the direction of wire movement during the product separation process. This diagram shows an example of a product separation process. This is a diagram showing a portion of Figure 8.

The embodiments of this disclosure will be described below with reference to the drawings. In the following description, similar components will be denoted by the same reference numerals, and their names and functions will be the same or similar. Therefore, detailed descriptions of them may be omitted.

Embodiment 1.
***Explanation of the structure***
An example of using the wiring fastener 100 in Embodiment 1 will be explained with reference to Figure 1. Figure 1 is a diagram showing an example of using the wiring fastener 100 in Embodiment 1. As shown in Figure 1, the wiring fastener 100 is fixed to the structural member 200 via adhesive 300. The wiring fastener 100 has opposing openings 21. A wiring material 400 is placed on top of the wiring fastener 100. Furthermore, the wiring fastener 100 and the wiring material 400 are fixed together by a cable tie 500 that passes through the opening 21.

Furthermore, the material of the wiring fastener 100 is, for example, metal. When the wiring fastener 100 is manufactured from a metal material, the adhesive 300 may be conductive. Also, when the wiring fastener 100 is manufactured from a metal material, it may be manufactured using a metal 3D printer.

Figure 2 is a perspective view of the wiring fastener 100 in Embodiment 1. The wiring fastener 100 has an adhesive portion 10, a space-saving portion 20, and a connecting portion 30. The adhesive portion 10, the space-saving portion 20, and the connecting portion 30 are integrally formed.

The adhesive portion 10 has a flat lower surface and is fixed to the structural member 200. Furthermore, the adhesive portion 10 has a space-saving portion 20 rising from its side end.

The space-saving section 20 consists of a pair of space-saving sections 20a and 20b. The height of the upper part of the space-saving section 20 relative to the adhesive section 10 is determined by the positional relationship between the wiring material 400 and the structural member 200 and other structures.

Furthermore, the space-retaining sections 20a and 20b have a closed-section opening 21. Figure 3 is a side view of the wiring fastener 100 in Embodiment 1. As shown in Figure 3, the opening 20 includes linear sections 211a and 211b at the top and bottom. The opening 20 also includes beam sections 212a and 212b connecting the linear sections 211a and 211b.

The beam sections 212a and 212b have an angle with respect to the straight sections 211a and 211b of a specific angle θ (described later) or less. θ is the angle between the beam sections 212a and 212b and the straight section 211a, or the angle between the beam sections 212a and 212b and the straight section 211b. Furthermore, θ is an angle at which the wiring fastener 100 can be fabricated using a metal 3D printer without adding supports, for example, 45°. However, the corners formed by the straight section 211 and the beam section 212 (hereinafter referred to as the cable tie fastening section) have an R-shape of R2 or greater in R-processing.

Figure 4 is a front view of the wiring fastener 100 in Embodiment 1. The space-saving portion 20 forms a closed-section weight-reducing portion 22 in the front direction of the wiring fastener 100. Furthermore, the surface on which the weight-reducing portion 22 is formed, i.e., the axial end face of the wiring material 400, stands perpendicular to the lower surface of the adhesive portion 10. In other words, the space-saving portions 20a and 20b form the weight-reducing portion 22 with surfaces perpendicular to the surface on which the opening 21 is formed.

Here, when manufacturing the wiring fastener 100 using a metal 3D printer, it may be fabricated by stacking layers perpendicular to the two surfaces where the weight-reducing portion 22 is formed, i.e., opposing planes.

Furthermore, the opening 20 only needs to be closed at the top, and the bottom may be open. In this case, the portion of the adhesive part 10 corresponding to the bottom of the opening 20 will be open. Also, the beam parts 212a and 212b only need to have an angle of θ or less at the top of the opening 21, i.e., the portion connected to the straight part 211a, and the shape of the lower part connected to the straight part 211b is not specified.

Returning to Figure 2, the connecting portion 30 connects the upper ends of the pair of space-retaining portions 20a and 20b. Figure 5 shows Figure 1 as viewed from the axial direction of the wiring material 400 (a) and a part of Figure 1 (b). As shown in Figures 5(a) and 5(b), the connecting portion 30 contacts the wiring material 400 via its upper surface, the contact surface 31.

The contact surface 31 may be curved in the direction of the adhesive portion 10. In that case, the radius of curvature of the contact surface 31 is equal to or smaller than the lower limit of the radius of the wiring material 400. Furthermore, the contact surface 31 has a sufficient arc length to make contact with the bundled wiring on the wiring material 400 at at least two points.

In other words, the wiring fastener 100 has an external shape formed by combining an adhesive portion 10, which is a rectangular base plate; a space-securing portion 20 having trapezoidal first and second side plate portions and rectangular first and second inclined plate portions that rise from both short sides of the rectangular base plate; and a connecting portion 30, which is a top plate portion that connects the upper edges of the first and second side plates to the upper edges of the first and second inclined plates, to form a frustum-shaped hexahedron outer wall plate surface.

Furthermore, the aforementioned first and second side sections each have trapezoidal cutouts 22. In addition, the first and second inclined plate sections each have cocoon-shaped openings 21. In other words, the first and second side sections form space-retaining sections 20b, and the first and second inclined plate sections form the aforementioned space-retaining sections 20a.

Thus, in a wiring fastener 100 comprising an adhesive portion 10 fixed to a structural member 200, a pair of space-retaining portions 20 rising from the side ends of the adhesive portion 10 and having an opening 21 with at least its upper part closed, and a connecting portion 30 connecting the upper ends of the space-retaining portions 20, the wiring material 400 can be positioned higher than the adhesive portion 10 that contacts the structural member 200 by passing a cable tie 500 through the opening 21 of the space-retaining portion 20 to secure the wiring material 400. As a result, the wiring fastener 100 of Embodiment 1 has the effect of preventing contact between the structural member 200 and the wiring material 400 without adhering a spacer to the lower surface of the adhesive portion 10.

Furthermore, since the spacer is not glued when using the wiring fastener 100, the amount of work required can be reduced.

Furthermore, by changing the height of the upper part of the space-securing portion 20 relative to the adhesive portion 10, and by using wiring fasteners 100 of different heights, the wiring fastener 100 of Embodiment 1 can prevent contact between the wiring materials 400 even when they are arranged in a crisscross pattern.

In addition, the connecting portion 30 connects to the upper end of the space-retaining portion 20. This allows the wiring fixing device 100 of Embodiment 1 to prevent damage to the wiring material 400 due to contact between the upper end of the space-retaining portion 20 and the wiring material 400, compared to the case where the upper end of the space-retaining portion 20 is open.

Furthermore, the space-retaining portion 20 rises from the side edge of the adhesive portion 10 and is formed integrally. This allows the wiring fixing device 100 of Embodiment 1 to withstand a larger load at the point where the adhesive portion 10 and the connecting portion of the space-retaining portion 20, which are in contact with the flat plate, undergo plastic deformation, compared to the case where the space-retaining portion 20 is raised on a flat plate.

For example, suppose a force is applied to the connection portion 30 in a direction perpendicular or horizontal to the adhesive surface of the adhesive portion 10 and the structural member 200. In this case, the wiring fastener 100 of Embodiment 1 experiences a greater load leading to plastic deformation at the connection portion between the adhesive portion 10 and the space-retaining portion 20 compared to the case where the space-retaining portion 20 does not rise from the side end of the adhesive portion 10.

When the wiring fastener 100 is manufactured integrally from a metal material, the wiring fastener 100 of Embodiment 1 can prevent static charge and outgassing of the wiring fastener 100 compared to the case where resin is used.

Furthermore, if the contact surface 31 of the connection portion 30 has a curved shape, the wiring material 400 can be placed stably on it. As a result, the wiring fastener 100 of Embodiment 1 improves workability during the bundling process using cable ties 500, and also improves the reliability of the wiring fastener 100 during operation.

Furthermore, the corners formed by the cable tie fastening portion have an R-shape of R2 or greater in the R-processing. This allows the wiring fastener 100 of Embodiment 1 to prevent damage to the cable tie 500 due to contact between the corners formed by the cable tie fastening portion and the cable tie 500 during the fastening process and operation of the wiring fastener 100.

Furthermore, the surface on which the weight-reducing portion 22 is formed stands perpendicular to the lower surface of the adhesive portion 10. Also, the beam portions 212a and 212b have an angle θ relative to the straight portions 211a and 211b that allows the wiring fastener 100 to be fabricated using a metal 3D printer without the need for additional supports. As a result, the wiring fastener 100 of Embodiment 1 can reduce the processing time compared to when adding supports to the space of the cable tie fastening portion during metal 3D printing.

Furthermore, the formation of the weight-reducing portion 22 results in the wiring fastener 100 of Embodiment 1 being lighter than the one without the weight-reducing portion 22.

Furthermore, the adhesive portion 10 may be fixed to the structural member 200 without using the adhesive 300. For example, the adhesive portion 10 and the structural member 200 may be fixed together with a cable tie passed through the opening 21. Here, the cable tie used to fix the adhesive portion 10 and the structural member 200 is different from the cable tie 500 described above.

***Explanation of Manufacturing Method***
Next, the manufacturing method of the wiring fastener 100 of Embodiment 1 will be explained with reference to Figure 6. Figure 6 is a diagram showing the manufacturing flow of the wiring fastener 100. The manufacturing method of this disclosure uses a 3D printer. First, as a molding process, multiple wiring fasteners 100 are molded using a 3D printer (Step 1).

Figure 7 shows an example of the fabrication process (a) and a diagram showing the layering direction (b). As shown in Figure 7(a), multiple wiring fixtures 100 are fabricated on the base plate 600 during the fabrication process. At this time, the base plate 600 is used to fabricate the wiring fixtures 100 so that the surface on which the weight-reducing portion 22 is formed is in contact with the base plate 600. That is, the wiring fixtures 100 are fabricated so that the bottom surface of the base plate 600 and the axial direction of the wiring material 400 when the wiring material 400 is placed on the wiring fixture 100 are perpendicular.

Furthermore, within a plane parallel to the base plate 600, multiple wiring fixtures 100, i.e., multiple three-dimensional objects, are arranged such that one arrangement direction intersects the other, while the other arrangement direction is inclined. Adjacent three-dimensional objects are arranged with gaps between them in both the one and the other directions.

Furthermore, the wiring fasteners 100 may be stacked perpendicular to the bottom surface of the base plate 600, i.e., in the direction of arrow A in Figure 7(b). Here, the direction of arrow A is the vertical direction. Also, in Figure 7(a), n indicates the number of stacks, and in Figure 7(a) it is 2. n may be a number of 3 or more.

When stacking the wiring fasteners 100 in the direction of arrow A as described above, the stacking height should be such that the wiring fasteners 100 located vertically downwards, i.e., in the -A direction, do not deform due to the load of material powder application (recoating) during the molding process. If the maximum height of the 3D printer's molding device is lower than the height at which the wiring fasteners 100 do not deform, the stacking height may be set to the maximum height of the molding device.

Returning to Figure 6, in the product separation process, the wiring fixture 100 fabricated in the fabrication process is separated by wire electrical discharge machining (WEDM) (Step 2). Figure 8 shows the direction of wire travel in the product separation process. Figure 9 shows an example of the product separation process. Here, the bottom surface of the base plate 600 is parallel to the X-Z plane in Figure 8.

In Figure 8, the wire moves in the direction of arrow B, which is the X direction. The Y direction is the front direction of the wiring fixture 100, that is, the axial direction of the wiring material 400 when the wiring material 400 is placed on the wiring fixture 100. The -Z direction is vertically downward. As the wire moves, the wiring fixture 100 is detached by the dashed line C in Figure 9.

Figure 10 shows a portion of Figure 8. As shown in Figure 10, in the product separation process, the connecting surfaces 31 of adjacent wiring fixtures 100 in the Z direction have a distance D in the X direction. The distance D is set based on the size, material, and wire EDM machining conditions of the wiring fixtures 100 so that the wiring fixture 100 located in the -Z direction is separated first. For example, the distance D is 1 mm.

Furthermore, as shown in Figure 10, adjacent wiring fasteners 100 in the Z direction during the product separation process have a distance E between them in the Z direction. The distance E is set so that, during the separation process of one wiring fastener 100, no other wiring fastener 100 is caught between that fastener 100 and another adjacent wiring fastener 100 in the Z direction. If the distance between the adhesive portion 10 and the connection portion 30 of the wiring fastener 100 is distance F, then the relationship between distance E and distance F is, for example, E < F.

Furthermore, the manufacturing method disclosed herein is also applicable to three-dimensional objects other than the wiring fastener 100. In that case, in the manufacturing process, objects having opposing planes are stacked perpendicular to those planes, similar to the wiring fastener 100. The separation process is the same as for the wiring fastener 100.

In this method for manufacturing wiring fasteners, which includes a fabrication step of creating multiple wiring fasteners 100 on a base plate 600, and a product separation step of separating the wiring fasteners 100 fabricated in the fabrication step by wire electrical discharge machining, the wiring fasteners 100 are fabricated such that the bottom surface of the base plate 600 and the axial direction of the wiring material 400 when the wiring material 400 is placed on the wiring fastener 100 are perpendicular. Furthermore, the wiring fasteners 100 can be fabricated in a stacked manner perpendicular to the bottom surface of the base plate 600. This increases the number of parts that can be manufactured in a single batch, resulting in a reduction in manufacturing costs.

Furthermore, in the product separation process, the spacing in the X direction between adjacent wiring fasteners 100 in the Z direction is set so that the wiring fastener 100 located vertically downwards is separated first. This causes the wiring fasteners 100 located vertically downwards to fall one by one. As a result, the manufacturing method of the wiring fasteners 100 of this disclosure has the effect of preventing processing stoppages and processing defects caused by interference between parts, without the wiring fasteners 100 interfering with each other.

Furthermore, in the product separation process, the spacing in the Z-direction between adjacent wiring fasteners 100 is set so that, before one wiring fastener 100 is separated, no other wiring fastener 100 is caught between that fastener 100 and any other adjacent wiring fastener 100 in the Z-direction. This prevents the manufacturing method of the wiring fastener 100 according to this disclosure from causing processing stoppages and processing defects due to separated and fallen wiring fasteners 100 becoming trapped.

Furthermore, by using a 3D printer for fabrication, the height of the space-saving portion 20 of the wiring fastener 100 can be easily changed. This allows the manufacturing method of the wiring fastener 100 described herein to produce wiring fasteners 100 with different space-saving portion 20 heights in a single batch, thereby reducing manufacturing costs.

Furthermore, when using a metal 3D printer for fabrication, compared to fabricating each part individually using machining or other methods, there is no need to prepare extrusion, casting, or sheet metal parts to accommodate differences in the height of the space-saving section 20, resulting in a cost-effective manufacturing process.

Furthermore, when using a metal 3D printer, complex shapes such as the R-shape of the cable tie fastening portion of the wiring fastener 100 can be easily manufactured using conductive materials, compared to machining or other manufacturing methods.

In the embodiments described herein, the materials and relative arrangements of the components may be described, but these are illustrative examples in all respects and are not limited to those described in each embodiment. Therefore, countless variations not illustrated are conceivable within the scope of each embodiment. For example, this includes modifying, adding, or omitting any component, or even extracting at least one component from at least one embodiment and combining it with components from other embodiments. In other words, it is possible to freely combine each embodiment and modify or omit each embodiment as appropriate.

Furthermore, unless contradictory, a component described as being provided as "one" in each of the above embodiments may be provided as "one or more." Moreover, each component is a conceptual unit, including cases where one component is composed of multiple structures, and cases where one component corresponds to a part of a structure.

The various aspects of this disclosure are summarized below as an appendix.

(Note 1)
The adhesive part that is fixed to the structural member,
A pair of space-retaining portions that rise from the side ends of the adhesive portion and have an opening that is closed at least at the top,
A connecting part that connects the upper end of the space-securing part,
A wiring fastener equipped with the following features.
(Note 2)
The wiring fixing device described in Appendix 1, wherein the adhesive portion, the space-securing portion, and the connecting portion are integrally formed.
(Note 3)
The wiring fastener according to Appendix 1 or 2, wherein the contact surface, which is the surface that contacts the wiring material of the connection part, has a curved shape.
(Note 4)
The wiring fastener according to any one of the appendices 1 to 3, wherein the opening consists of a straight section and a beam section connecting the straight sections, and the corner formed by the straight section and the beam section has an R shape of R2 or greater in R processing.
(Note 5)
The wiring fastener according to any one of the appendices 1 to 4, wherein the space-securing portion has a cutout portion which is a closed cross-sectional opening on a surface perpendicular to the surface containing the opening.
(Note 6)
A wiring fastener made of a conductive material, as described in any one of Appendix 1 to 5.
(Note 7)
The bottom plate section,
A space-securing portion that rises from the side edge of the bottom plate portion and has an opening,
A connecting part that connects the upper end of the space-securing part,
A wiring fixture equipped with this is manufactured by addition manufacturing, which involves sintering conductive metal powder.
A method for manufacturing wiring fasteners.
(Note 8)
A fabrication process for creating multiple wiring fixtures having opposing planes on a base plate,
A product separation process in which the wiring fixture formed in the molding process is separated by wire electrical discharge machining,
A method for manufacturing a wiring fastener having the following characteristics.
(Note 9)
The manufacturing method according to Appendix 8, wherein the spacing of the wiring fasteners in the direction of wire travel during the product separation process is set such that the wiring fasteners located vertically downward are separated first.
(Note 10)
A method for manufacturing a wiring fastener according to Appendix 8 or 9, wherein in the product separation step, the distance between the wiring fastener and other vertically adjacent wiring fasteners is set such that the other wiring fasteners are not sandwiched between the wiring fastener and the other wiring fasteners.
(Note 11)
The method for manufacturing a wiring fastener according to any one of the appendices 8 to 10, wherein the molding step involves forming the wiring fastener by stacking materials in a direction perpendicular to the opposing planes.
(Note 12)
A method for manufacturing a wiring fastener according to any one of the appendices 8 to 11, wherein in the molding step, a plurality of wiring fasteners having a pair of space-securing portions with openings and different heights are molded on a single base plate.
(Note 13)
A process for creating multiple three-dimensional objects on a base plate, wherein one arrangement direction is inclined in the other arrangement direction intersecting it, and adjacent three-dimensional objects are arranged with gaps between them in one direction and the other direction;
A product separation process in which the molded object formed in the molding process is separated by wire electrical discharge machining,
A method for manufacturing a three-dimensional object having [a specific characteristic].

100 Wiring fastener, 200 Structural member, 300 Adhesive, 400 Wiring material, 500 Cable tie, 600 Base plate, 10 Adhesive section, (20, 20a, 20b) Space-saving section, 21 Opening, (211, 211a, 211b) Straight section, (212, 212a, 212b) Beam section, 22 Weight-reducing section, 30 Connection section, 31 Adhesive surface

Claims (9)

Adhesive part attached to structural member,
A pair of space-retaining portions that rise from the side end of the adhesive portion and have an opening through which a fastening material for fixing the wiring material passes , and the opening has an opening on a plane parallel to the axial direction of the wiring material ,
A connecting portion that connects the upper end of the space-securing portion and supports the wiring material with a contact surface that contacts the wiring material ,
A wiring fastener comprising the adhesive portion, the space-securing portion, and the connecting portion, which are integrally formed . The wiring fastener according to claim 1, wherein the contact surface, which is the surface that contacts the wiring material of the connection part, has a curved shape. The wiring fastener according to claim 1, wherein the opening consists of a straight section and a beam section connecting the straight sections, and the corner formed by the straight section and the beam section has an R shape of R2 or greater in R-processing. The wiring fastener according to claim 1, wherein the opening consists of a straight section and a beam section connecting the straight sections, and the angle formed by the beam section with respect to the straight sections is 45°. The wiring fixing device according to any one of claims 1 to 4 , wherein the space-securing portion has a cutout portion which is a closed cross-sectional opening on a surface perpendicular to the surface including the opening. A wiring fastener according to any one of claims 1 to 4 , formed from a conductive material. Adhesive part attached to structural member,
A pair of space-retaining portions that rise from the side ends of the adhesive portion and have an opening that is closed at least at the top,
A connecting part that connects the upper end of the space-securing part,
A wiring fastener comprising a conductive material. The area of the adhesive portion is larger than the area of the connection portion.
The space-securing portion is inclined with respect to the adhesive portion, and the cross-section of the plane perpendicular to the axial direction of the wiring material forms a trapezoidal shape.
A wiring fastener according to any one of claims 1 to 4. Wiring materials and
Binding material and
A wiring fastener comprising: an adhesive portion attached to a structural member; a pair of space-retaining portions rising from the side end of the adhesive portion and having an opening through which the fastening material passes, the opening being parallel to the axial direction of the wiring material; and a connecting portion connecting the upper ends of the space-retaining portions and supporting the wiring material by a contact surface that contacts the wiring material, wherein the adhesive portion, the space-retaining portions, and the connecting portion are integrally formed,
Equipped with,
The wiring material is in contact with the contact surface of the connection portion and is fixed to the wiring fixing body by a binding material that passes through the opening.