JP7751288B2 - Brake hose bracket and fixing structure between brake hose and bracket - Google Patents

Description

The present invention relates to a brake hose bracket and a fixing structure between the brake hose and the bracket.

When securing a brake hose to the vehicle body, the brake hose is secured to a bracket, and then the brake hose is secured to the vehicle body via the bracket.

For example, Patent Document 1 below describes a brake hose mounting fixture in which a mounting hole is formed in a steel plate and a stopper is formed by coining into a petal-like shape. The brake hose is secured to the fixture by threading a nut fixed to the brake hose onto the fixture.

For example, Patent Document 2 below describes a bracket for a hose in which a hexagonal recessed hole that corresponds to a hexagonal nut is formed in a steel plate at the edge of a circular through hole.

Japanese Utility Model Laid-Open Publication No. 53-156227 Japanese Patent Application Laid-Open No. 2007-321877

In the brackets of Patent Documents 1 and 2, a single recessed hole corresponding to the shape of the fixture secured to the hose is formed by press molding, and the fixture is fitted into this recessed hole to secure the hose to the bracket so that it does not rotate. However, because the fixture is prevented from rotating by fitting it into a single recessed hole, the shape of the recessed hole is inevitably complex.

When complex-shaped holes are formed in steel plates using methods such as press forming, problems can arise, such as cracks occurring due to localized stress acting on the steel plate, or the intended bent shape not being achieved due to elastic deformation of the steel plate known as springback.

The objective of this invention is to provide a brake hose bracket that can automatically determine the fixing position when fixing a fixing device attached to a brake hose to the bracket, without relying on a single recessed hole for fitting the fixing device, and a fixing structure for connecting the brake hose to the bracket.

The above problem is solved by a brake hose bracket (hereinafter referred to as the bracket) for securing a brake hose equipped with a fastener, the bracket having a through hole, a first convex portion provided on the edge of the through hole, a second convex portion provided on the edge of the through hole, and a third convex portion provided on the edge of the through hole, the edge of the through hole being shaped to engage with a fastener secured to the brake hose, the bracket being constructed from a plate material, the first convex portion, the second convex portion, and the third convex portion being formed by bending the plate material that constitutes the bracket and having mutually independent convex shapes, the first part of the fastener secured to the brake hose engaging with the first convex portion, and the second part of the fastener engaging with the second convex portion, securing the brake hose in a state where it cannot rotate relative to the bracket, and the third convex portion receiving the third part for identifying the position of the fastener.

The above problem is solved by a fixing structure (hereinafter referred to as the "fixing structure") between a brake hose and a bracket, which includes a brake hose with a fixing device having a first portion and a second portion, and a bracket having a through hole, a first convex portion provided on the edge of the through hole, a second convex portion provided on the edge of the through hole, and a third convex portion provided on the edge of the through hole. The edge of the through hole is shaped to hook onto a fixing device fixed to the brake hose. The bracket is made of plate material, and the first convex portion, the second convex portion, and the third convex portion are formed by bending the plate material that makes up the bracket and are independent convex shapes. The first portion of the fixing device fixed to the brake hose hooks onto the first convex portion, and the second portion of the fixing device hooks onto the second convex portion, thereby fixing the brake hose so that it cannot rotate relative to the bracket. The third convex portion receives the third portion of the fixing device, which is used to identify the position of the fixing device.

In the above bracket and fixing structure, the first, second, and third convex portions are formed by bending the plate material that makes up the bracket, and are independent convex shapes. Therefore, there is no need to create a complex recessed hole like the single recessed hole described above, and the first, second, and third convex portions can be easily formed using a method such as press molding. The first part of the fixing device fixed to the brake hose engages with the first convex portion, and the second part of the fixing device engages with the second convex portion, thereby fixing the brake hose so that it does not rotate relative to the bracket. In the above bracket and fixing structure, the position and direction in which the brake hose is fixed are automatically determined by the third convex portion and the third part of the fixing device that identifies its position.

In the above bracket and fixing structure, it is preferable that the first convex portion, the second convex portion, or the third convex portion has a shape in which one end contacts the through hole and the other end contacts the edge of the bracket. This makes it easier to mold the first convex portion, the second convex portion, or the third convex portion.

In the above bracket and fixing structure, it is preferable that the first convex portion, the second convex portion, or the third convex portion has a shape in which one end contacts the through hole and the other end contacts a second through hole provided in the bracket. This makes it easier to mold the first convex portion, the second convex portion, or the third convex portion.

In the above bracket and fixing structure, the fixing device can be shaped so that when the brake hose is aligned in the correct position, the third convex portion receives the third portion for identifying the position of the fixing device, and when the brake hose is aligned in the wrong position, the fixing device interferes with at least one of the first convex portion, the second convex portion, and the third convex portion.

In the above bracket and fixing structure, the first convex portion, the second convex portion, or the third convex portion can be formed, for example, by bending the plate material that makes up the bracket into a groove shape.

The present invention provides a brake hose bracket and a fixing structure for the brake hose and bracket that can automatically determine the fixing position when fixing a fixing device attached to the brake hose to the bracket, without relying on a single recessed hole corresponding to the fixing device.

1 is a perspective view showing an embodiment of a brake hose bracket. FIG. FIG. 2 is a plan view showing the bracket of FIG. 1 as viewed from one side. FIG. 3 is a cross-sectional view taken along the line AA in FIG. 2 . FIG. 3 is a cross-sectional view taken along the line BB in FIG. 2 . FIG. 3 is a cross-sectional view taken along line CC in FIG. 2 . FIG. 3 is a cross-sectional view taken along the line DD in FIG. 2 . FIG. 2 is a perspective view showing a fixing structure in which the bracket and the fixing tool in FIG. 1 are fixed together. 8 is a plan view showing the fixing structure of FIG. 7 as viewed from one side. FIG. FIG. 10 is an exploded perspective view showing another example of the fixing structure. FIG. 10 is a perspective view of the fixing structure of FIG. 9 in an assembled state. 11 is a plan view showing the fixing structure of FIG. 10 as viewed from one side. FIG.

The following describes one embodiment of the bracket and fixing structure of the present invention. Each embodiment described below is merely an example of the present invention, and the technical scope of the present invention is not limited to the illustrated embodiment.

Figures 1 to 6 show one embodiment of the bracket of the present invention. Figures 7 and 8 show one embodiment of the fixing structure of the present invention.

As shown in Figures 7 and 8, the bracket 1 is used to secure a brake hose 8 equipped with a fastener 5 to the vehicle body. The part that secures the bracket 1 to the vehicle body is not particularly limited, but examples of such parts include any part that constitutes the vehicle body, such as a side frame, cross member, or subframe, and that is located near the brake device.

As shown in Figure 7, bracket 1 has an attachment portion 11 formed by bending the metal plate that constitutes bracket 1. With attachment portion 11 in contact with the component, bracket 1 is fixed to the component by welding or screwing the component to attachment portion 11. The shape of the attachment portion is not limited to the above example, and may be any shape suitable for attaching the bracket.

As shown in Figure 7, the edge of the through hole 12 is shaped to engage with the fixture 5 fixed to the brake hose 8. In the example of Figure 7, the inner diameter of the through hole 12 has a portion configured to be smaller than the outer diameter of the fixture 5. In the bracket 1, the edge of the through hole 12 is provided with multiple protrusions 15 for engaging the fixture, as shown in Figure 2. In the examples of Figures 7 and 8, the inner diameter of the through hole 12 in the bracket 1 is configured to be larger than the outer diameter of the brake hose 8, allowing the brake hose 8 to pass through the through hole 12.

In the example shown in Figure 7, the fastener 5 is a generally hexagonal nut with one of the six corners chamfered in an arc. This arc-chamfered portion constitutes the third part 33 for position identification, which will be described later. Furthermore, the two opposing smooth surfaces of the nut form the first part 31 and the second part 32, which respectively engage with the first protrusion 21 and the second protrusion 22 of the bracket 1, as will be described later.

In the example shown in Figure 7, the brake hose 8 is fixed in place by inserting it through a hole in a cylindrical member 84 with a threaded outer periphery. A nut is screwed onto the member from one side of the bracket 1, and another nut is screwed onto the member from the other side of the bracket 1. In this way, the brake hose 8 is fixed to the bracket 1. The manner in which the brake hose and the fixture are connected and fixed is not limited to this, and other manners may also be used.

As shown in Figures 1 and 2, the bracket 1 of this embodiment has a through hole 12, a first protrusion 21 provided on the edge of the through hole 12, a second protrusion 22 provided on the edge of the through hole 12, and a third protrusion 23 provided on the edge of the through hole 12.

The bracket 1 is made of plate material. As shown in Figures 1 to 6, the first convex portion 21, the second convex portion 22, and the third convex portion 23 have shapes formed by bending the plate material that constitutes the bracket 1, and are convex shapes that are independent of one another. In the example shown in Figures 1 to 6, the first convex portion 21, the second convex portion 22, and the third convex portion 23 have shapes that protrude upward from one side of the bracket 1, and have shapes formed by bending the plate material that constitutes the bracket 1 into groove shapes. In the example shown in Figures 1 to 6, the first convex portion 21, the second convex portion 22, and the third convex portion 23 are groove-shaped, formed by bending the plate material upward in an arc shape.

7 and 8 , the first portion 31 of the fixing device 5 fixed to the brake hose 8 engages with the first protrusion 21 of the bracket 1, and the second portion 32 of the fixing device 5 engages with the second protrusion 22, thereby fixing the brake hose 8 and fixing device 5 in a state where they cannot rotate relative to the bracket 1. The third protrusion 23 of the bracket 1 accepts the third portion 33 for position identification of the fixing device 5. As described above, the third portion 33 for position identification of the fixing device 5 has a chamfered corner. When the brake hose 8 is correctly positioned, as shown in FIG. 8 , the third protrusion 23 of the bracket 1 accepts the third portion 33 for position identification. When the brake hose 8 is incorrectly positioned, (not shown), at least one of the first protrusion 21, second protrusion 22, and third protrusion 23 may interfere with the fixing device 5 depending on the position of the fixing device 5, preventing the brake hose 8 from fitting properly to the bracket 1. In the example shown in Figure 8, the third protrusion 23 of the bracket 1 and the third part 33 of the fixing device 5 are in surface contact and latched together, and the fixing device 5 is supported in a stable manner by a total of three points: the first protrusion 21, second protrusion 22, and third protrusion 23 of the bracket 1.

As shown in FIG. 1, in the bracket 1, the first convex portion 21 and the third convex portion 23 are shaped so that one end contacts the through hole 12 and the other end contacts the edge of the bracket 1. This makes it easier to stabilize the shapes of the first convex portion 21 and the third convex portion 23 when forming the first convex portion 21 and the third convex portion 23 using a method such as press molding.

As shown in FIG. 1 , the bracket 1 has a base 14 with a hypotenuse at the portion connecting the mounting portion 11 and the edge of the through hole 12. Therefore, the second protrusion 22 does not contact the edge of the bracket 1. The bracket 1 has a second through hole 13 penetrating the bracket 1 in the thickness direction so as to contact the other end of the second protrusion 22. One end of the second protrusion 22 contacts the through hole, and the other end of the second protrusion 22 contacts the second through hole 13 provided in the bracket 1. This makes it easier to stabilize the shape of the second protrusion 22 when forming the second protrusion 22 using a method such as press molding. The second through hole may be, for example, a through hole with a length equal to or greater than the width of the adjacent protrusion. In the bracket 1, the second through hole 13 has a length equal to or greater than the width of the second protrusion 22, and is an elongated hole with a width smaller than its length.

When providing the second through hole 13, the second through hole 13 is drilled into the bracket 1, and then the first convex portion 21, second convex portion 22, or third convex portion 23 is formed by a method such as press molding. This avoids deformation of the first convex portion 21, second convex portion 22, or third convex portion 23 as would occur through drawing, and provides the effect of making their shapes more stable.

[Modification]
The fastener is not limited to a hexagonal nut. For example, the fastener may have a shape such that when the brake hose is aligned correctly, the third convex portion receives the third portion for identifying the position of the fastener, and when the brake hose is aligned incorrectly, at least one of the first convex portion, the second convex portion, and the third convex portion interferes with the fastener. The fastener may have any polyhedral shape, such as a pentagon in plan view or a heptagon in plan view.

The first convex portion, the second convex portion, and the third convex portion are shaped to protrude downward from the other surface of the bracket 1, and may be shaped by bending the plate material that makes up the bracket into a groove shape.

The first convex portion, the second convex portion, and the third convex portion are not limited to an arc-shaped groove shape; for example, they may have a hat-shaped cross section with two corners, or a triangular cross section with one corner.

At least one or all of the first convex portion, the second convex portion, and the third convex portion may be shaped so that one end contacts the through hole and the other end contacts the edge of the bracket. Furthermore, at least one or all of the first convex portion, the second convex portion, and the third convex portion may be shaped so that one end contacts the through hole and the other end contacts a second through hole provided in the bracket.

The positions of the first, second, and third convex portions are not limited to the examples shown in Figures 1 to 6 and can be changed as appropriate. For example, the third convex portion may be located at the 6 o'clock position in Figure 1, or the third convex portion may be located at the 3 o'clock position in Figure 1.

The number of second through holes is not limited to one; for example, one may be provided at the other end of each of the first convex portion, the second convex portion, and the third convex portion.

Furthermore, at least one of the first convex portion, the second convex portion, and the third convex portion may have one end in contact with the through hole and the other end in contact with the edge of the bracket, and the remaining first convex portion, the second convex portion, and the third convex portion may have one end in contact with the through hole and the other end in contact with the second through hole.

The first convex portion, the second convex portion, and the third convex portion are not limited to the example shown in FIG. 2 in which their shapes are linear when viewed from one side. For example, the first convex portion and the second convex portion may be shaped to follow the corners that form the first and second parts of the fastener, and the third convex portion may be shaped to follow the arc-shaped part that forms the third part of the fastener.

To connect the brake hose, bracket, and fastener, for example, a bolt with a through hole along the axial direction can be used as the fastener, and the brake hose and bolt can be fastened together with the brake hose inserted through the through hole. The head of the bolt can then be hooked onto one side of the bracket, and a nut can be threaded into the bolt's thread groove from the other side of the bracket. The bolt head can also be provided with a third portion for position identification, similar to that described above.

The brake hose, bracket, and fixture may be connected as shown in FIGS. 9 to 11 , for example. In the fixing structure shown in FIGS. 9 to 11 , the brake hose is divided into a first hose 81 and a second hose 82. Brake fluid flows through the first hose 81 and the second hose 82. The ends of the first hose 81 and the second hose 82 are provided with threaded portions that can be threadedly engaged with each other. In the example shown in FIGS. 9 to 10 , the second hose 82 connected to the lower side of the bracket 1 is made of metal, and a threaded groove is formed on the outer circumferential surface of the end of the second hose 82. A metal fitting 811 having a threaded inner circumferential surface is connected to the end of the first hose 81 connected to the upper side of the bracket 1. The first hose 81 and the second hose 82 are liquid-tightly connected by threading the threaded grooves while the metal fitting 811 is inserted into the through-hole of the bracket 1.

A fixing device 5 having the same shape as described above is fixed to the outer surface of the end of the first hose 81 via a sleeve 812. The shape of the bracket 1 is also the same as described above. The bracket 1 and fixing device 5 are fixed in the same way as described above to prevent rotation.

A hexagonal nut-shaped protrusion is provided at the end of the second hose 82 as a flange-like protrusion 821. When the first hose 81 and the second hose 82 are fixed to the bracket 1 as shown in Fig. 10, the protrusion 821 is pressed against the bracket 1 via the washer 83. As shown in Fig. 9 , the washer 83 has a shape with two curved arms, which function as a leaf spring.

In the example shown in Figures 9 to 11, a member that is connected to a brake hose and allows brake fluid to flow through it is inserted into the through hole in the bracket 1.

1 bracket 5 fixing device 8 brake hose 12 through hole 13 second through hole 21 first protrusion 22 second protrusion 23 third protrusion 31 first part 32 second part 33 third part

Claims (5)

A bracket for fixing a brake hose equipped with a fixing device,
the bracket includes a through hole, a first convex portion provided on an edge of the through hole, a second convex portion provided on the edge of the through hole, and a third convex portion provided on the edge of the through hole,
The edge of the through hole is shaped to be hooked onto a fixture fixed to the brake hose,
The bracket is made of a plate material,
the first convex portion, the second convex portion, and the third convex portion are formed by bending a plate material that constitutes the bracket, and are convex shapes that are independent of each other,
a first portion of a fixture fixed to the brake hose is hooked onto the first protrusion, and a second portion of the fixture is hooked onto the second protrusion, so that the fixture is fixed in a state in which the brake hose does not rotate relative to the bracket;
the fixture fixed to the brake hose has a polygonal shape, and the third portion of the fixture has a shape in which corners of the polygonal shape are chamfered in a plan view,
the fixing device is shaped so that, when the brake hose is aligned in a correct position, the third convex portion receives the third portion, the third portion having a chamfered corner for identifying the position of the fixing device, without interfering with the third convex portion, and when the brake hose is aligned in an incorrect position, at least one of the first convex portion, the second convex portion, and the third convex portion interferes with the fixing device,
The brake hose is fixed in place by being inserted into a hole in a cylindrical member having a threaded outer periphery, and the fixing device is screwed onto the cylindrical member from one side of the bracket, and a nut is screwed onto the cylindrical member from the other side of the bracket, thereby fixing the brake hose to the bracket . The first convex portion, the second convex portion, or the third convex portion is
2. The brake hose bracket according to claim 1, wherein one end of the bracket is in contact with the through hole and the other end is in contact with an edge of the bracket. The first convex portion, the second convex portion, or the third convex portion is
2. The brake hose bracket according to claim 1, wherein one end of the bracket is in contact with the through hole, and the other end of the bracket is in contact with a second through hole provided in the bracket. 4. The brake hose bracket according to claim 1, wherein the first convex portion, the second convex portion, or the third convex portion has a shape formed by bending a plate material constituting the bracket into a groove shape. a brake hose having a fixture with a first portion and a second portion;
a bracket having a through hole, a first convex portion provided on an edge of the through hole, a second convex portion provided on the edge of the through hole, and a third convex portion provided on the edge of the through hole,
The edge of the through hole is shaped to be hooked onto a fixture fixed to the brake hose,
The bracket is made of a plate material,
the first convex portion, the second convex portion, and the third convex portion are formed by bending a plate material that constitutes the bracket, and are convex shapes that are independent of each other,
a first portion of a fixture fixed to the brake hose is hooked onto the first protrusion, and a second portion of the fixture is hooked onto the second protrusion, so that the brake hose is fixed in a state in which it does not rotate relative to the bracket;
the fixture fixed to the brake hose has a polygonal shape, and the third portion of the fixture has a shape in which corners of the polygonal shape are chamfered in a plan view,
the fixing device is shaped so that, when the brake hose is aligned in a correct position, the third convex portion receives the third portion, the third portion having a chamfered corner for identifying the position of the fixing device, without interfering with the third convex portion, and when the brake hose is aligned in an incorrect position, at least one of the first convex portion, the second convex portion, and the third convex portion interferes with the fixing device,
The brake hose is fixed in a state where it is inserted into a hole in a cylindrical member having a threaded outer periphery, and the fixing device is screwed onto the cylindrical member from one side of the bracket, and a nut is screwed onto the cylindrical member from the other side of the bracket, thereby fixing the brake hose to the bracket .