JP3016490U - Wrench for plug bridge - Google Patents

Abstract

(57) [Abstract] [Purpose] An object of the present invention is to provide a tool capable of easily supporting and positioning the head of a plug bleeder, and easily performing rotation adjustment or removal of the plug bleeder. . [Structure] A hole 11 is formed at each end of a wrench 10 for a plug bleeder, a meshing portion 12 having a width W1 is formed in the hole 11, and a width W2 is formed above the meshing portion 12.
A protrusion 13 is formed above the meshing portion 12 so as to protrude from the surroundings. According to this wrench 10, the plug bleeder 1
Of the whole hexagonal head 3 is inserted with a meshing portion 12 that meshes with the same, and in the inserted state, the head 3 is covered above the meshing portion 12, and the protrusion 13 that abuts against the head 3 is Since it is arranged, the meshing state of the meshing portion 12 with the head portion 3 can be maintained, and both can be corresponded and positioned.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This discussion relates to a plug bleeder wrench for rotating adjustment or removal of the plug bleeder when repairing or replacing a vehicle brake.

[0002]

[Prior art]

 Conventionally, for example, when a disc brake pad is replaced or repaired, and further inspection is performed, each brake component is disassembled and reassembled. After assembly, the air mixed and generated in the brake hydraulic system is discharged by adjusting the rotation of the plug bleeder to prevent the occurrence of brake pumping.

As shown in FIG. 6, the plug bleeder 1 is provided with a screw portion 2 on the lower side and a hexagonal bolt-shaped head portion 3 on the upper portion thereof, and further, on the upper portion of the head portion 3, air is discharged. The outlet 4 is integrally formed. A brake oil discharge tube 5 is inserted into the air discharge port 4, and when the brake oil is discharged from the discharge port 4 during the air discharge work, these are collected. Since the plug bleeder 1 is arranged in a narrow space below the vehicle body, a long spectacle lens 6 as shown in FIG. 5 was used for the rotation adjustment work. The box wrench 6 has flat hexagonal (in some cases, dodecagonal) holes 7 having different diameters on both sides. As shown in FIG. 6, the plug bleeder 1 is rotated by operating the head 3 by covering the hole 7 of the box wrench 6 and engaging the head 3 with the hole 7 of the lent 6. It allows the air in the hydraulic system of the brake to be discharged and disassembled.

[0004]

[Problems to be solved by the device]

 However, in the conventional box wrench 6 described above, since the holes 7 are only vertically penetrated, the holes 7 of the box wrench 6 are inserted into the discharge tube 5 as shown in FIG. When the hole 7 is meshed with the head 3, the wrench 6 must be positioned on the head 3 so that the tip of the wrench 6 floats with respect to the brake housing 8. However, in the plug bleeder 1 which is arranged in a small space under the vehicle body in a dark place, it is difficult to match and position the hole 7 of the wrench 6 with the head 3, and even if the hole 7 is As shown by the chain double-dashed line in Fig. 6 even when the head 3 is engaged, there are some problems such as the hole 7 falling off from the head 3 during rotating work, and the workability is very poor. .

The present invention has been made in view of the above-mentioned conventional problems, and it is possible to easily cope with and position the head of the plug bleeder, and easily perform rotation adjustment or removal of the plug bleeder. The purpose is to provide a tool that can be used.

[0006]

[Means for solving problems]

 In order to achieve the above object, the present invention is a plug bleeder wrench for adjusting or removing a plug bleeder of an automobile brake, which has an entire hexagonal head and an air outlet at the top. The plug bleeder has a hexagonal head that is inserted into the hexagonal head of the plug bleeder, and the hole-shaped meshing part that meshes with the head and the periphery of the head above the meshing part cover the meshing part. This is a wrench for a plug bleeder, which is provided with a protruding piece for positioning on the section.

[0007]

[Action]

 According to the present invention, the meshing part that meshes with the whole hexagonal head of the plug bleeder is inserted, and in the inserted state, the head is covered above the meshing part, and the head comes into contact with the head. Since the protruding pieces that are in contact with each other are provided, it is possible to maintain the meshing state with respect to the head of the meshing portion, and to correspond and position both. As a result, it is possible to provide a dedicated tool capable of easily adjusting the rotation or removing the plug bleeder arranged in a narrow space below the vehicle.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 4 relate to a wrench for a plug bleeder according to an embodiment of the present invention. As shown in FIG. 2, the plug bleeder wrench 10 has an outer shape substantially similar to that of a conventional box wrench, and has a flat dodecagonal hole 11 (which may be a hexagonal shape) 11 having different diameters on both sides. Has been formed. As shown in FIG. 1, the lower portion of each hole 11 is a meshing portion 12 having a width W1 that meshes with the head 3 of the plug bleeder 1. Further, above the meshing portion 12 above the meshing portion 12 from the periphery. The protruding piece 13 in the protruding state is formed. That is, the upper portion of the hole portion 11 from which the protruding piece 13 projects is a narrow width W2 of the width W1 that of the meshing portion 12 (see FIG. 1).

The wrench 10 formed in this manner is provided with a plug bleeder 1 arranged in an assembly 14 of the disc brake as shown in FIG. Used by being attached to. That is, as shown in FIG. 4, the wrench 10 is inserted and attached so that the meshing portion 12 meshes with the head 3. As a result, the upper part of the head 3 comes into contact with the protrusion 13 and covers the surrounding area above it, and the meshing part 12 is positioned on the head 3 without falling off from the head 3. And In addition, when the wrench 10 is inserted, the discharge port 4 is opened upward from the hole 11 above the head of the plug bleeder 1, so that air can be smoothly discharged from the discharge port 4. Can be done.

In this way, the hole 11 of the wrench 10 can be securely inserted into the head 3 of the plug bleeder 1, and air can be discharged by rotating the wrench 10 in this state. In addition, it is possible to easily attach and detach the plug bleeder 1 when disassembling the brake.

Next, the operation of the above embodiment will be described. According to the wrench 10, the meshing portion 12 that meshes with the hexagonal head 3 of the plug breeder 1 is inserted, and the head 3 is covered above the meshing portion 12 in the inserted state. Since the projecting piece 13 that comes into contact with the head portion 3 is provided, it is possible to maintain the meshing state of the meshing portion 12 with the head portion 3 and to correspond and position the both. As a result, it is possible to provide a dedicated tool that can easily adjust the rotation or remove the plug bleeder arranged in a narrow space below the vehicle.

[Effect of consideration]

 As described above, according to the present invention, it is possible to provide a tool that can be easily adjusted and positioned with respect to the head of the plug bleeder, and that can easily adjust the rotation or remove the plug bleeder. The effect is that you can.

[Brief description of drawings]

1 is a cross-sectional view of the wrench for a plug bleeder according to an embodiment of the present invention taken along the line I-I of FIG.

FIG. 2 is a perspective view showing an entire wrench.

FIG. 3 is a perspective view showing a state in which a hole portion of a wrench is inserted into and attached to a plug bleeder.

FIG. 4 is a cross-sectional view showing a state in which a meshing portion of a wrench is inserted into the head of a plug bleeder and positioned.

FIG. 5 is a perspective view showing a conventional box wrench.

FIG. 6 is a cross-sectional view showing a state in which the hole of a box wrench is inserted and attached to the head of a plug bleeder.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Plug bleeder 2 Screw part 3 Head part 4 Discharge port 5 Discharge tube 6 Box wrench 7 Hole part 8 Brake housing 10 Plug bleed wrench 11 Hole part 12 Interlocking part 13 Projection piece 14 Assy

Claims (1)

[Scope of utility model registration request] 1. A wrench for a plug bleeder for rotationally adjusting or removing a plug bleeder of an automobile brake, which has an entire hexagonal head and an air discharge port on the upper part thereof, the entire hex of the plug bleeder. A hole-shaped meshing portion that is inserted into and attached to the prismatic head and that covers the periphery of the head above the meshing portion and positions the meshing portion on the head of the plug bleeder. A wrench for plug bleeders.