JP5658639B2 - Intermediate hose for vehicle hose - Google Patents

Description

  The present invention relates to an intermediate holder for fixing an intermediate portion of a flexible vehicle hose, and more particularly, to fix a hydraulic brake hose, an air brake hose, a power steering hose, an oil cooler hose, etc. of an automobile to a vehicle body. The present invention relates to an intermediate holder for a vehicle hose.

  Conventionally, a flexible tubular hose attached as an automobile part, for example, a hydraulic brake hose and an air brake hose of an automobile, is fixed to the vehicle body side at one end and disposed on the wheel side at the other end. Fixed to the wheel cylinder. Since the wheel is connected to the vehicle body via the suspension, the wheel moves up and down with respect to the vehicle body. Further, since the brake hose is disposed in a relatively narrow space, there is a risk of contact interference with other components when vertical movement or the maximum steering angle occurs.

  For this reason, in order to prevent displacement at the middle part of the hose, the hose itself is fixedly held at the middle part. As this fixing and holding means, a metal band, an intermediate joint fitting, or an intermediate holding fitting is generally used. These fixing and holding means have a problem of increasing the rigidity of the brake hose in the mounting portion and decreasing the flexibility.

  Then, the hose holder which can provide high durability with respect to a hose by preventing that stress concentrates on the local part of a hose is proposed. For example, there is a hose intermediate holder described in JP-A-9-178045. The intermediate holder includes a gripping part for gripping the hose and a fixing part fixed to the fixing member, and the hollow part so that the rigidity of the fixing part mounting part of the hose is lower than the rigidity of the gripping part of the hose. It was set as the structure provided with.

  Also, there is a control cable terminal support device for holding and fixing the cable. For example, the terminal support device described in Japanese Patent Application Laid-Open No. 2006-118565 is held by inserting a conduit fixing portion including a conduit for slidably storing a control cable into a bracket having a U-shaped engagement port.

Japanese Patent Laid-Open No. 9-178045 JP 2006-118565 A

  In the hose intermediate holder described in the above publication (hereinafter referred to as a well-known example), the fixing part fixed to the fixing member is lower in rigidity than the holding part for holding the hose, so that the hose and the holding part are elastically integrated. It will be deformed and no undue stress will be generated. However, the hose may be attached in a twisted state. That is, the intermediate holder of the publicly known example has a cylindrical shape as a whole, and the bracket grip portion formed in the intermediate portion forms an annular fitting groove on the outer peripheral side and an annular hollow portion on the inner peripheral side. Formed.

  The hose intermediate holder is assembled to the bracket by press-fitting a notch formed in a part of the circular opening of the bracket into the fitting groove of the bracket gripping portion. When assembling, the intermediate holder can be press-fitted from any direction, so that it may be press-fitted into the notch of the circular opening of the bracket while the hose is twisted so that the operator can easily attach it. .

  As shown in FIG. 1, connecting fittings for fixing the vehicle hose and the wheel are fixed to both ends of the brake hose. When the shapes of the connecting fittings at both ends are different, the angle of the fitting is determined in advance, and it is desirable that the fitting is attached while maintaining a predetermined angle when assembling. However, since the press-fit direction of the intermediate holder as in the known example is not restricted, the operator may attach the hose to the bracket in a state where the hose is twisted in order to increase the work efficiency.

  On the other hand, when the control cable terminal device described in Japanese Patent Application Laid-Open No. 2006-118565 is applied as an intermediate holding device for a brake hose, the rigidity of the brake hose at the mounting portion can be increased, as in the case of the conventional holding device. Flexibility will be reduced. In addition, the terminal device has a rectangular plate that forms a groove into which the bracket is inserted and an upper end portion of the presser portion connected by a top plate, and the bracket is inserted from the opposite side of the top plate. The top plate serves as a part to be pressed by a finger when inserted into the bracket. When the top plate is inserted excessively, the top plate is locked by the shoulder of the top plate and stops.

  However, since the terminal device is configured to slidably store the control cable, the terminal device itself can be rotated and inserted into the bracket without twisting the cable. In addition, the bracket and the terminal device are fixed by engaging a locking projection provided on the terminal device with a locking hole provided on the bracket. When the intermediate holder is made of an elastic material such as rubber, the same configuration cannot be used.

  The present invention has been made in view of the present situation, and prevents stress from concentrating on the portion of the intermediate holder, and always restricts the fitting direction of the intermediate holder to the member in a constant direction. It is an object of the present invention to provide an intermediate holding tool for a vehicle hose that can be fitted to the hose and prevent the hose from being twisted to improve the durability of the hose.

In order to achieve the above object, the present invention is configured as follows. That is, the intermediate holder of the vehicle hose according to the present invention is an intermediate holder of a hose made of an elastic material that is attached to the intermediate part of the hose and fixed to the fixing member. The hose holding part has an inner diameter that is smaller than the outer diameter of the hose, and the member fitting part has both end parts folded back approximately 180 degrees on the outer peripheral surface. When a member fitting groove having a substantially round bottom flask shape is formed, a projecting portion projecting from the member fitting portion is formed between both end portions of the member fitting groove, and the projecting portion is assembled to a fixed member And a fitting direction indicating portion for instructing the fitting direction, and both end portions of the member fitting groove are open toward the protruding direction of the fitting direction indicating portion.

Moreover, the intermediate | middle holder of the hose for vehicles which concerns on this invention may form the internal peripheral surface of a hose holding part in the uneven surface parallel to an axial direction.

  According to the intermediate holder of the vehicle hose according to the present invention, it is possible to prevent stress from concentrating on the portion of the intermediate holder, and to regulate the fitting direction of the intermediate holder to the fixing member at all times. Since the fitting is performed from the direction, the hose can be prevented from being twisted when assembled to the fixing member. Moreover, after assembling to the fixing member, the rotation is prevented, the attachment angle of the fitting is maintained, and the durability of the hose can be improved. Moreover, by forming with an elastic material, the rigidity of the brake hose in a mounting part is improved, and it does not reduce flexibility.

FIG. 1 is a configuration diagram of a brake hose equipped with an intermediate holder according to an embodiment. FIG. 2 is a front view of the intermediate holder according to the first embodiment. FIG. 3 is a cross-sectional view taken along line AA in FIG. 4 is a cross-sectional view taken along line BB in FIG. FIG. 5 is a perspective view of the same. FIG. 6 is a cross-sectional view corresponding to FIG. 3 of the intermediate holder according to the second embodiment. FIG. 7 is a cross-sectional view corresponding to FIG. 3 of the intermediate holder according to the third embodiment. FIG. 10 is a cross-sectional view corresponding to FIG. 3 of the intermediate holder according to the fourth embodiment. FIG. 9 is a top perspective view of an intermediate holder according to the fifth embodiment. FIG. 10A is an explanatory view showing a state in which the intermediate holder of the first embodiment is assembled to a fixing member, FIG. 10B is an explanatory view showing another assembling method to the fixing member, and FIG. It is explanatory drawing of the state which assembled | attached the intermediate holder of 5th Embodiment to the fixing member.

  Hereinafter, the present invention will be described in detail based on the illustrated embodiments. FIG. 1 is a configuration diagram of a brake hose in which an intermediate holder formed by the present invention is attached to an intermediate portion of the hose, FIG. 2 is a front view of the intermediate holder, and FIG. 3 is a longitudinal sectional view taken along line AA in FIG. 4 is a cross-sectional view taken along line BB in FIG. A female fitting 2 and an eye joint fitting 3 are fixed to both ends of the brake hose 1, and an intermediate holder 10 is attached to an intermediate portion of the hose. The intermediate holder 10 is assembled to the bracket 4 which is a fixing member fixed to a shock absorber or the like.

  The intermediate holding tool 10 is formed by a hose holding part 11 attached to the outer peripheral surface of the hose and a member fitting part 12 protruding from a substantially intermediate part. The hose holding part 11 is a cylindrical part having a hose insertion hole 11a having an inner diameter slightly smaller than the outer diameter of the hose to be mounted. The hose insertion hole 11a is fixed so that the intermediate retainer 10 does not rotate when the brake hose 1 is inserted and does not move in the axial direction of the brake hose 1, and further, the brake that flows through the inner diameter of the brake hose after insertion. Any size that does not hinder the flow of the liquid may be used. The intermediate holder 10 is held at a predetermined position of the attached hose. As will be described later, the outer surface shapes of the hose holding portion 11 and the member fitting portion 12 are not limited to a circle.

As apparent from FIGS. 2 and 3, a substantially U-shaped bracket fitting groove 12 a is provided on the outer peripheral surface of the member fitting portion 12 so as to follow the outer peripheral surface of the hose holding portion 11. The both ends of the bracket fitting groove 12a are opposed to each other on both side surfaces of the protruding portion 13 protruding from the member fitting portion 12 . The bracket fitting groove 12a is assembled by fitting a locking hole of a bracket as a fixing member. Therefore, the bracket fitting groove 12a is formed in a substantially round bottom flask shape as a whole by folding back 180 degrees in the same direction on the outer peripheral surface of the member fitting portion 12 excluding the protruding portion 13 portion.

Both ends of the fitting groove 12a are closed on the protruding portion 13 side, and the side surface of the protruding portion 13 and the tip of the fitting groove 12a are continuous by the smooth surface 14 , and Open to the protruding direction . The width L1 of the opposing smooth surface 14 of the protrusion 13 is smaller than the opposing width L2 of the groove bottom of the fitting groove 12a, and L1 <L2, and the groove bottom is an extension of the smooth surface 14. It bulges outward from the line. Therefore, as shown in FIG. 3, the bracket fitting groove 12a has both ends continuous to the smooth surface 14 and is formed in a substantially round bottom flask shape.

  The protruding portion 13 serves as a fitting direction indicating portion 15 that indicates a fitting direction when assembled to the bracket, and prevents twisting after assembling. When the fitting groove is formed in an annular shape on the entire outer peripheral surface of the member fitting portion 12, the intermediate holder can be fitted to the bracket from any direction. There is a risk of assembling in a twisted state. However, since it is impossible to press-fit from a predetermined direction by providing the fitting direction indicating portion 15, it is necessary to assemble with the bracket facing directly, and the correct angle of the fitting can be maintained. it can.

  Further, in detail, as shown in FIG. 1, different types of fittings may be fixed to both ends of the brake hose, and the fittings may be fixed at the correct angle when assembled to the bracket. Desired. By providing the fitting direction indicating portion 15 on the outer peripheral surface of the intermediate holder 10, it becomes possible to press-fit into the bracket only from a predetermined direction, as will be described later, and the fitting angle of the fittings at both ends of the brake hose is maintained. In addition, twisting of the hose can be prevented.

  FIG. 6 is a cross-sectional view corresponding to FIG. 3, which is an intermediate holder 10 </ b> A according to the second embodiment. The intermediate holder 10A of this embodiment is different from the intermediate holder 10 of the first embodiment in that a tapered surface 17 is provided on one side of the protrusion 13 in the circumferential direction. By providing the tapered surface 17, the fitting direction becomes clearer. Since other configurations are the same as those of the first embodiment, the same configurations are denoted by the same reference numerals and description thereof is omitted.

  FIG. 7 is a cross-sectional view corresponding to FIG. 3, which is an intermediate holder 10 </ b> B according to the third embodiment. The intermediate holder 10 </ b> B of this embodiment is different from the intermediate holder 10 of the first embodiment in that the protrusion direction 13 is not provided, and the fitting direction instruction part 15 is a part of the member fitting part 12. It is in the point formed in the smooth surface cut off with. In this embodiment, the smooth surface on the upper part of the fitting direction instruction part 15 becomes large, and the fitting direction becomes clearer. Since other configurations are the same as those of the first embodiment, the same configurations are denoted by the same reference numerals and description thereof is omitted.

  FIG. 8 is an intermediate holder 10 </ b> C according to the fourth embodiment, and is a cross-section corresponding to FIG. 3. The intermediate holder of this embodiment is different from the intermediate holder 10 of the first embodiment in that a small protrusion parallel to the axial direction is provided on the inner peripheral surface of the hose insertion hole 11a of the hose holder 11 to form an uneven surface 18. Different in. By setting the inner peripheral surface of the hose insertion hole 11a to the concave and convex surface 18, rotation on the outer peripheral surface of the hose is prevented during transportation and storage as well as during use when mounted on the middle portion of the brake hose. The

  Next, an intermediate holder 10D according to the fifth embodiment shown in FIG. 9 will be described. In the said embodiment, although the case where the outer peripheral surface of the hose holding | maintenance part 11 and the member fitting part 12 was formed in circular shape was demonstrated, the outer periphery of the intermediate holder which concerns on this invention is not limited to circular shape. The intermediate holder 10D includes a member fitting portion 12A having an outer peripheral surface formed in a rectangular shape, similar to the hose holding portion 11A having an outer peripheral surface formed in a rectangular shape. The member fitting portion 12A is formed by providing flange-like protrusions 20 and 20 in parallel on the three outer peripheral surfaces of the hose holding portion 11A.

The interval between the flange-like projections 20 and 20 serves as a bracket fitting groove 12b for being press-fitted into the locking hole of the bracket and assembled to the bracket. The bracket fitting groove 12b is formed in a substantially U shape along the three surfaces of the hose holding portion 12A, and both ends thereof are opened in the same direction on the opposing surfaces. The smooth surface of the hose holding part 11A on the opening side of the bracket fitting groove 12b serves as a fitting direction instruction part. When the bracket is fitted into the bracket fitting groove 12b, the bracket is sandwiched by the flange-shaped protrusions 20 and 20.

  More specifically, when the width dimension of one parallel side of the hose holding portion 11A is L3 and the width dimension of the other orthogonal side is L4, the hose holding portion 11A is formed to satisfy L3 <L4. If the press-fitting direction to the bracket is, for example, the width direction of L3 and the size of the through hole of the bracket is formed to be the same as that of L3, it cannot be press-fitted into the through hole of the bracket in the width direction of L4. Therefore, by forming the outer shape of the hose holding portion 11A in a rectangular shape, the press-fitting direction of the intermediate holding tool 10D is confirmed when assembling to the bracket, and it is possible to prevent the hose holding portion 11A from being assembled in a twisted state. it can. Further, the hose does not rotate after being assembled to the bracket.

  As in the fifth embodiment, by making the outer shape of the hose holding portion 11A a rectangular shape, any of the orthogonal surfaces can be used as the fitting direction indicating portion. In addition, although the said 5th Embodiment demonstrated the case where the bracket fitting groove | channel 12b was formed along the outer surface shape of 11 h of hose holding parts, the external shape of 11 h of hose holding parts was formed in circular shape, and a member fitting part Only the outer surface forming the bracket fitting groove 12b in 12A may be rectangular.

  That is, when the distance of the bracket fitting groove 12b from the shaft center in the hose holding part 11A is different in the orthogonal direction, one side can be fitted into the through hole of the bracket, but the other side is fitted into the through hole of the bracket. It will not be possible to match. The member fitting portion 12A is formed by the flange-shaped protrusions 20 and 20 provided on the three outer peripheral surfaces of the hose holding portion 11A. However, the flange-shaped protrusions 20 and 20 may be provided on the entire outer peripheral surface of the hose holding portion 11A. Good. Further, the formation of the fitting direction instruction portion is not limited to the case where the both ends of the fitting groove are folded back approximately 180 degrees to form a substantially round bottom flask shape as in the fourth embodiment.

  Further, as apparent from the above description, the present invention prevents the hose from being assembled in a twisted state by confirming the fitting direction when fitting the intermediate holder to the bracket. The outer surface shape that forms the bracket fitting groove in the member fitting portion may be different in the direction in which the distance from the axis of the hose holding portion to the bracket fitting groove is orthogonal. Therefore, the bracket fitting groove may be a shape that forms a part of a polygon such as an ellipse, a trapezoid, and a rhombus in addition to a rectangle, and may have a dimension that is asymmetric in a direction orthogonal to the axis.

  The material of the intermediate holder according to the above configuration is preferably an elastic material such as rubber or elastomer having a hardness of 60 to 80 degrees. The above-mentioned hardness and material ensure the press-fit property by elasticity when attached to the hose and do not increase the rigidity of the hose or decrease the flexibility. Moreover, the fixing function when assembled to the fixing member can be ensured.

  Next, an example of an assembly structure of the intermediate holder 10 of the above embodiment and a bracket as a fixing member will be described with reference to FIG. The bracket 21 shown in FIG. 10A has a substantially round bottom flask-shaped opening 21 a for fitting the bracket fitting groove 12 a of the hose intermediate holder 10. The opening 21a is formed by cutting out a circular part so as to have a locking portion 21b and a tapered surface 21c.

  In order to assemble the intermediate holder 10, it is only necessary to fit the opening 21a having the above-described configuration from the fitting groove 12a side with the fitting direction indicating portion 15 of the member fitting portion 12 facing outward. The intermediate holder 10 is securely held by the locking portion 21b, and the rotation is prevented by the fitting direction instruction portion 15. As described above, by making the bracket fitting groove 12a of the hose intermediate holder and the opening 21a of the bracket into a round bottom flask shape, it can be easily assembled and can be prevented from coming off.

  FIG. 10B shows an assembling structure in which the fitting direction indicating portion is inserted into the opening of the bracket, opposite to the assembling structure of FIG. The bracket 22 has a substantially rectangular opening 22 a for fitting the bracket fitting groove 12 a of the hose intermediate holder 10 and the fitting direction instruction portion 15. The rectangular opening 22a is formed by notching so as to have a recess 22b and a tapered surface 22c on the opening side. In this assembly structure, the fitting direction indicating portion 15 is opposite to the case of FIG. 10A, the fitting direction indicating portion 15 of the member fitting portion 12 faces inward, and the opening side of the rectangular opening 22a having the above-described configuration. It is easy to assemble because it is press-fitted from. The intermediate holder 10 is securely held by the recess 22b and is prevented from rotating by the fitting direction instruction unit 15.

  FIG.10 (c) shows the assembly | attachment structure to the bracket of hose intermediate holder 10D shown in FIG. The bracket 23 has a substantially rectangular opening 23a for fitting the bracket fitting groove 12b of the hose intermediate holder 10D. The rectangular opening 23a is formed by notching so as to have a locking portion 23b on the opening side.

  In this assembled structure, since the thick side L4 of the bracket fitting groove 12b of the hose intermediate holder 10 cannot be press-fitted, it is press-fitted toward the side L3 having a smaller thickness. Thus, the press-fitting direction is surely instructed. The intermediate holder 10D after being assembled to the bracket 23 is reliably held by the locking portion 23b and is prevented from rotating by being rectangular.

1: Brake hose 2: Female fitting 3: Eye joint fitting 10, 10A, 10B, 10C, 10D: Intermediate holder 11, 11A: Hose holding part
12, 12A: Member fitting portion 12a: Bracket fitting groove
12b: Bracket fitting groove 13: Protruding part 14: Smooth surface 15: Fitting direction instruction part
17: Tapered surface 18: Uneven surface 20: Flange-like protrusion

Claims (1)

An intermediate holding device for a vehicle hose that is mounted on an intermediate portion of a hose and fixed to a fixing member, and includes a hose holding portion that holds the hose and a member fitting portion that is assembled to the fixing member. The inner diameter of the hose holding part is formed smaller than the outer diameter of the hose, and the member fitting part is formed with a member fitting groove having a substantially round bottom flask shape by folding both ends of the outer peripheral surface at about 180 degrees. Has been
Between the both ends of the member fitting groove is a protruding portion protruding from the member fitting portion, and a fitting direction indicating portion that indicates a fitting direction when the protruding portion is assembled to a fixing member, and An intermediate holder for a vehicle hose, characterized in that both end portions of the member fitting groove are opened toward the protruding direction of the fitting direction instruction portion.

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