Hydraulic brake pipe assembly and brake pipe fitting tool

• US 9,764,451 B2
• Filed: 03/10/2014
• Issued: 09/19/2017
• Est. Priority Date: 03/10/2014
• Status: Active Grant

• Current Assignee: Nissan Motor Co., Ltd.
• Original Assignee: Nissan North America Incorporated (Nissan Motor Co., Ltd.)
• Inventors: Robson, Paul, Warnecke, Scott
• Primary Examiner(s): BURCH, MELODY M
• Application Number:
  US14/202,086
• Publication Number:
  US 20150251298A1
• Time in Patent Office: 1,289 Days
• Field of Search: 303 1, 81 309, 811244, 811251, 811771, 81437, D8 21, 7138
• CPC Class Codes: B25B 13/08 of open jaw type
• CPC Class Codes: B25B 13/48 for special purposes
• CPC Class Codes: B60T 17/046 Devices for pipe guiding and fixing
• CPC Class Codes: Y10T 137/598 With repair, tapping, assembly, or disassembly means

Abstract

A brake pipe fitting tool includes a first hydraulic pipe wrench, a second hydraulic pipe wrench, a connecting portion and a handle portion. The first hydraulic pipe wrench has a first jaw defining a first hydraulic pipe insertion opening. The second hydraulic pipe wrench has a second jaw defining a second hydraulic pipe insertion opening. The connecting portion connects the first hydraulic pipe wrench to the second hydraulic pipe wrench such that the first hydraulic pipe wrench and the second hydraulic pipe wrench are fixedly and rigidly connected to one another and spaced apart from one another by a predetermined distance. The first hydraulic pipe insertion opening and the second hydraulic pipe insertion opening are parallel to one another and aligned with one another. The handle portion is rigidly fixed to one of the first hydraulic pipe wrench, the second hydraulic pipe wrench or the connecting portion.

Claims

1. A hydraulic brake pipe assembly and brake pipe fitting tool, wherein:

the hydraulic brake pipe assembly comprises;

a first hydraulic metallic fitting having a first wrench receiving portion, a second hydraulic metallic fitting having a second wrench receiving portion, and a flexible hose portion extending from the first hydraulic metallic fitting to the second hydraulic metallic fitting and being attached to each of the first hydraulic metallic fitting and the second hydraulic metallic fitting; and

the brake pipe fitting tool comprises;

a first hydraulic pipe wrench having a first jaw defining a first hydraulic pipe insertion opening dimensioned to receive the first hydraulic metallic fitting preventing rotation of the first hydraulic metallic fitting relative to the first jaw;

a second hydraulic pipe wrench having a second jaw defining a second hydraulic pipe insertion opening dimensioned to receive the second hydraulic metallic fitting preventing rotation of the second hydraulic metallic fitting relative to the second jaw;

a connecting portion connecting the first hydraulic pipe wrench to the second hydraulic pipe wrench such that the first hydraulic pipe wrench and the second hydraulic pipe wrench are fixedly and rigidly connected to one another, spaced apart from one another by a predetermined distance, with the first hydraulic pipe insertion opening and the second hydraulic pipe insertion opening being parallel to one another and aligned with one another; and

a handle portion rigidly fixed to one of the first hydraulic pipe wrench, the second hydraulic pipe wrench or the connecting portion, with the first hydraulic pipe wrench, the second hydraulic pipe wrench, the connecting portion and the handle portion being formed as a single, rigid, unitary, monolithic element, and

the predetermined distance between the first hydraulic pipe wrench and the second hydraulic pipe wrench is approximately equal to a distance defined between the first wrench receiving portion of the first hydraulic metallic fitting and the second wrench receiving portion of the second hydraulic metallic fitting of the hydraulic pipe assembly.

2. The hydraulic brake pipe assembly and brake pipe fitting tool according to claim 1, wherein

the first hydraulic pipe insertion opening of the first jaw of the first hydraulic pipe wrench is defined by a plurality of first surfaces that at least partially define a first hexagonal shape with an axis centered within the first hexagonal shape, and

the second hydraulic pipe insertion opening of the second jaw of the second hydraulic pipe wrench is defined by a plurality of second surfaces that at least partially define a second hexagonal shape such that the axis extends through the second hydraulic pipe insertion opening and is centered within the hexagonal shape of the second hydraulic pipe insertion opening.

3. The hydraulic brake pipe assembly and brake pipe fitting tool according to claim 2, wherein

the first wrench receiving portion of the first hydraulic metallic fitting has a first hexagonal shaped outer surface corresponding to the first hexagonal shape of the first hydraulic pipe insertion opening, and

the second wrench receiving portion of the second hydraulic metallic fitting has a second hexagonal shaped outer surface corresponding to the second hexagonal shape of the second hydraulic pipe insertion opening.

4. The hydraulic brake pipe assembly and brake pipe fitting tool according to claim 1, wherein

with the first wrench receiving portion of the first hydraulic metallic fitting inserted into the first hydraulic pipe insertion opening of the first wrench and the second wrench receiving portion of the second hydraulic metallic fitting inserted into the second hydraulic pipe insertion opening of the second wrench, the first hydraulic metallic fitting and the second hydraulic metallic fitting move together with movement of the brake pipe fitting tool and are prevented from rotating with respect to one another.

5. The hydraulic brake pipe assembly and brake pipe fitting tool according to claim 4, wherein

with the wrench receiving portion of the first hydraulic metallic fitting inserted into the first hydraulic pipe insertion opening of the first wrench and the wrench receiving portion of the second hydraulic metallic fitting inserted into the second hydraulic pipe insertion opening of the second wrench, the flexible hose portion is free to flex in a space defined between the first wrench and the second wrench.

6. A hydraulic brake pipe assembly and brake pipe fitting tool, wherein:

the hydraulic brake pipe assembly comprises;

a first hydraulic metallic fitting having a first wrench receiving portion, a second hydraulic metallic fitting having a second wrench receiving portion, and a flexible hose portion extending from the first hydraulic metallic fitting to the second hydraulic metallic fitting and being attached to each of the first hydraulic metallic fitting and the second hydraulic metallic fitting; and

the brake pipe fitting tool comprises;

a first hydraulic pipe wrench having a first jaw having surfaces defining a first hydraulic pipe insertion opening dimensioned to receive the first hydraulic metallic fitting;

a second hydraulic pipe wrench having a second jaw having surfaces defining a second hydraulic pipe insertion opening dimensioned to receive the second hydraulic metallic fitting;

a connecting portion rigidly and non-movably connected to the first hydraulic pipe wrench and rigidly and non-movably connected to the second hydraulic pipe wrench such that the first hydraulic pipe wrench and the second hydraulic pipe wrench are non-movable relative to one another, and the first hydraulic pipe wrench and the second hydraulic pipe wrench are spaced apart from one another by a predetermined distance, with the first hydraulic pipe insertion opening and the second hydraulic pipe insertion opening being parallel to one another and aligned with one another; and

a handle portion rigidly fixed to one of the first hydraulic pipe wrench, the second hydraulic pipe wrench and the connecting portion, with the first hydraulic pipe wrench, the second hydraulic pipe wrench, the connecting portion and the handle portion being formed as a single, rigid, unitary, monolithic element, and

the brake pipe fitting tool being configured such that with the surfaces of the first jaw of the first hydraulic pipe wrench contacting and engaging the first wrench receiving portion of the first hydraulic metallic fitting and the surfaces of the second jaw of the second hydraulic pipe wrench contacting and engaging the second wrench receiving portion of the second hydraulic metallic fitting, the first hydraulic metallic fitting and the second hydraulic metallic fitting are prevented from rotating relative to one another.

7. The hydraulic brake pipe assembly and brake pipe fitting tool according to claim 6, wherein

the predetermined distance between the first hydraulic pipe wrench and the second hydraulic pipe wrench is approximately equal to a distance defined between the first wrench receiving portion of the first hydraulic metallic fitting and the second wrench receiving portion of the second hydraulic metallic fitting of the hydraulic pipe assembly.

8. A hydraulic brake pipe assembly and brake pipe fitting tool, wherein:

the brake pipe fitting tool comprises;

a first hydraulic pipe wrench having a first jaw defining a first hydraulic pipe insertion opening dimensioned to receive the first hydraulic metallic fitting, the first hydraulic pipe insertion opening having a first surface and a second surface that are parallel to one another, face one another and are both flat surfaces, each of the first surface and the second surface extending from respective distal edges of the first jaw, the first surface extending to a third surface that is offset by 120 degrees from the first surface, the second surface extending to a fourth surface that is offset by 120 degrees from the second surface, and the third surface intersecting with and being offset by 120 degrees from the fourth surface such that the first, second, third and fourth surfaces define four surfaces of a hexagonal shape;

a second hydraulic pipe wrench having a second jaw defining a second hydraulic pipe insertion opening dimensioned to receive the second hydraulic metallic fitting the second hydraulic pipe insertion opening having a fifth surface and a sixth surface that are parallel to one another, face one another and are both flat surfaces, each of the fifth surface and the sixth surface extending from respective distal edges of the second jaw, the fifth surface extending to a seventh surface that is offset by 120 degrees from the fifth surface, the sixth surface extending to an eighth surface that is offset by 120 degrees from the sixth surface, and the seventh surface intersecting with and being offset by 120 degrees from the eighth surface such that the fifth, sixth, seventh and eighth surfaces define four surfaces of a hexagonal shape, with the first surface being aligned and co-planar with the fifth surface, the second surface being aligned and co-planar with the sixth surface, the third surface being aligned an co-planar with the seventh surface and the fourth surface being aligned and coplanar with the eight surface;

a connecting portion connecting the first hydraulic pipe wrench to the second hydraulic pipe wrench such that the first hydraulic pipe wrench and the second hydraulic pipe wrench are fixedly and rigidly connected to one another and are spaced apart from one another by a predetermined distance, with the first hydraulic pipe insertion opening and the second hydraulic pipe insertion opening being parallel to one another and aligned with one another; and

a handle portion rigidly fixed to one of the first hydraulic pipe wrench, the second hydraulic pipe wrench or the connecting portion, with the first hydraulic pipe wrench, the second hydraulic pipe wrench, the connecting portion and the handle portion being formed as a single, rigid, unitary, monolithic element.

9. The hydraulic brake pipe assembly and brake pipe fitting tool according to claim 8, wherein

the hydraulic brake pipe assembly comprises:

a first hydraulic metallic fitting having a first wrench receiving portion, a second hydraulic metallic fitting having a second wrench receiving portion, and a flexible hose portion extending from the first hydraulic metallic fitting to the second hydraulic metallic fitting and being attached to each of the first hydraulic metallic fitting and the second hydraulic metallic fitting, such that

with the first, second, third and fourth surfaces of the first hydraulic pipe wrench contacting and engaging the first wrench receiving portion and the fifth, sixth, seventh and eighth surfaces of the second hydraulic pipe wrench contacting and engaging the second wrench receiving portion, the first hydraulic metallic fitting and the second hydraulic metallic fitting are prevented from rotating relative to one another.

10. The hydraulic brake pipe assembly and brake pipe fitting tool according to claim 9, wherein

the predetermined distance between the first hydraulic pipe wrench and the second hydraulic pipe wrench is approximately equal to a distance defined between the first wrench receiving portion of the first hydraulic metallic fitting and the second wrench receiving portion of the second hydraulic metallic fitting of the hydraulic pipe assembly.