Oil pipe assembly jig and oil pipe assembly method

Abstract

To provide an oil pipe assembly jig and an oil pipe assembly method that facilitate assembly of oil pipes.SOLUTION: An oil pipe assembly jig comprises a first clamping piece 20 and a second clamping piece 10 that hold an oil pipe therebetween. The first clamping piece includes: a first support part 22 that supports one end of the oil pipe via a first sealing member; a second support part 23 that supports the other end of the oil pipe via a second sealing member; a first clamping part 21 that extends in a first direction intersecting a longitudinal direction of the oil pipe; a first connecting part 24 that extends in the longitudinal direction and is connected to the first support part, the second support part and the first clamping part; and a pair of first clamping parts 25 that protrude in a second direction opposite to the first direction from the first connecting part. The second clamping piece includes: a second clamping part 11 that extends in a third direction intersecting the longitudinal direction; a second connecting part 12 that extends in the longitudinal direction and is connected to the second clamping part; and a pair of second clamping parts 13 that protrude in the second direction from the second connecting part and hold the pair of first clamping parts and the oil pipe therebetween.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to an oil pipe assembling jig and an oil pipe assembling method. [Background technology]

[0002] BACKGROUND ART For example, in manufacturing or maintaining a vehicle or the like, it has been conventionally known to use a jig when attaching an oil pipe such as a hydraulic pipe, a brake pipe, or a vacuum pump pipe to a device or apparatus.

[0003] For example, Patent Document 1 discloses an eye joint fitting installation jig that aims to reduce the cost of eye joint fittings and improve their ease of handling. Specifically, the eye joint fitting installation jig is used to install an eye joint fitting, which includes a union bolt insertion portion and a hose connection portion protruding from the union bolt insertion portion, on a mounting surface of equipment by inserting a union bolt into the union bolt insertion portion and threading the male threads of the union bolt into the female threads of the mounting surface of the equipment. The eye joint fitting installation jig includes: a housing portion that houses the union bolt insertion portion; a bolt head exposing portion that exposes the head of the union bolt inserted into the union bolt insertion portion when the union bolt insertion portion is housed in the housing portion; a jig-side locking portion that locks with an equipment-side locking portion provided on the equipment side near the female threads to prevent rotation of the eye joint fitting installation jig; and a jig-side engaging portion that engages with the hose connection portion to prevent rotation of the eye joint fitting.

[0004] Furthermore, Patent Document 2 discloses an assembly structure for an eye joint that can be attached to a mating component (caliper brake) without removing a separate component for retaining the bolt when assembling the brake hose to a vehicle, and that eliminates the risk of the gasket falling off during transportation or handling of the brake hose, etc. Specifically, the assembly structure for an eye joint is disclosed, which has an eye joint body having an eye portion with a bolt hole formed therein, a union bolt that is inserted into the bolt hole, and a pair of upper and lower gaskets that are placed on the upper and lower surfaces of the eye portion, and the upper and lower gaskets are mechanically engaged with the union bolt. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Publication No. 2020-024008 [Patent Document 2] Japanese Patent Application Laid-Open No. 2003-056705 Summary of the Invention [Problem to be solved by the invention]

[0006] As the oil pipe described above, an oil pipe having both ends formed into a ring has been conventionally known. However, when assembling such an oil pipe to a device or apparatus, once one end of the oil pipe is assembled, it may be difficult to bring the other end close to the corresponding assembly position. In this case, it may be difficult to assemble the other end, which may ultimately make it difficult to assemble the oil pipe to the device or apparatus.

[0007] The present disclosure has been made in consideration of the above circumstances, and an object of the present disclosure is to provide an oil pipe assembly jig and an oil pipe assembly method that facilitate the assembly of oil pipes. [Means for solving the problem]

[0008] In order to solve the above problem, according to one aspect of the present disclosure, there is provided an oil pipe clamping device comprising a first clamping piece and a second clamping piece for clamping an oil pipe, the first clamping piece including a first support portion for supporting one end of the oil pipe via a first seal member, a second support portion for supporting the other end of the oil pipe via a second seal member, a first gripping portion extending in a first direction intersecting a longitudinal direction of the oil pipe, and a second gripping portion extending in the longitudinal direction and intersecting the first support portion, the second support portion, and the first gripping portion. and a pair of first clamping portions protruding from the first connecting portion in a second direction opposite to the first direction, wherein the second clamping piece has a second gripping portion extending in a third direction intersecting the longitudinal direction, a second connecting portion extending in the longitudinal direction and connected to the second gripping portion, and a pair of second clamping portions protruding from the second connecting portion in the second direction and clamping the pair of first clamping portions and the oil pipe. [Effects of the Invention]

[0009] As described above, according to the present disclosure, it is possible to provide an oil pipe assembling jig and an oil pipe assembling method that facilitate the assembling of an oil pipe. [Brief explanation of the drawings]

[0010] [Figure 1] 10A and 10B are diagrams illustrating an example of the configuration of an oil pipe assembling jig. [Figure 2] 10A and 10B are diagrams illustrating an example of the configuration of an oil pipe assembling jig. [Figure 3] 10A and 10B are diagrams illustrating an example of the configuration of an oil pipe assembling jig. [Figure 4] 10A and 10B are explanatory views for explaining the operation of the oil pipe assembling jig; [Figure 5] 10A and 10B are explanatory views for explaining the operation of the oil pipe assembling jig; [Figure 6] 10A and 10B are explanatory views for explaining the operation of the oil pipe assembling jig; [Figure 7] 10 is an explanatory diagram illustrating an example of a mode in which an oil pipe is attached to a device using an oil pipe assembly jig. FIG. [Figure 8] 10A and 10B are diagrams showing an example of an oil pipe temporarily fastened to a device. DETAILED DESCRIPTION OF THE INVENTION

[0011] 1. Embodiment A preferred embodiment of the present disclosure will be described below with reference to the accompanying drawings. The dimensions and scale of each part in the drawings may differ from the actual dimensions. The drawings may be schematic for ease of understanding. Furthermore, the scope of the present disclosure is not limited to the following exemplary embodiments unless otherwise specified.

[0012] In the following description, mutually intersecting X-axis, Y-axis, Z-axis, and m-axis are defined. The X-axis, Y-axis, and Z-axis directions are common to all figures exemplified in the following description and are three mutually intersecting axes. As exemplified in FIG. 1, a direction along the X-axis as viewed from an arbitrary point is denoted as the X1 direction, and a direction opposite to the X1 direction is denoted as the X2 direction. The X-axis direction is a direction that includes both the X1 direction and the X2 direction. The X1 direction corresponds to the "first direction," and the X2 direction corresponds to the "second direction." Similarly, mutually opposite directions along the Y-axis from an arbitrary point are denoted as the Y1 direction and the Y2 direction. The Y-axis direction is a direction that includes both the Y1 direction and the Y2 direction. Furthermore, mutually opposite directions along the Z-axis from an arbitrary point are denoted as the Z1 direction and the Z2 direction. The Z-axis direction is a direction that includes both the Z1 direction and the Z2 direction. Furthermore, the XY plane including the X-axis and the Y-axis corresponds to a horizontal plane. The Z axis is an axis along the vertical direction. The m axis direction intersects with the Y axis direction and is inclined at a predetermined angle from the X1 direction to the Z2 direction, and corresponds to the "third direction." The direction along the m axis as viewed from any point is referred to as the m axis direction. The m axis direction is common to all the figures illustrated in the following explanation.

[0013] In this disclosure and this specification, the term "intersect" also includes a case where one element intersects with another element at right angles. Unless otherwise specified, the term "orthogonal" is not limited to a case where the angle between one element and another element is 90°, and includes a tolerance range generally accepted in the relevant technical field.

[0014] The oil pipe assembly jig according to this embodiment is a tool used, for example, when assembling an oil pipe (hereinafter simply referred to as "oil pipe P") that is connected to a vacuum pump of a vehicle and guides oil sucked up by the vacuum pump to other equipment, to equipment such as an engine. Below, we will explain one embodiment in which the oil pipe assembly jig of the present disclosure is a tool used when assembling the oil pipe P to equipment.

[0015] [Configuration of oil pipe assembly jig] 1 to 3 are diagrams showing an example of the configuration of an oil pipe assembling jig 1 (hereinafter referred to as "jig 1"). Fig. 1 is a perspective view of jig 1, and Fig. 2 is a side view of jig 1. Fig. 3 is a perspective view of jig 1 different from that shown in Fig. 1.

[0016] The jig 1 has a clamping piece 10 (second clamping piece), a clamping piece 20 (first clamping piece), a support shaft 30, and a biasing mechanism (not shown). The clamping piece 10 is connected to the clamping piece 20 via the support shaft 30 and is configured to be rotatable around the Y axis with the support shaft 30 as the center (see FIG. 4).

[0017] The clamping piece 10 has a gripping portion 11 (second gripping portion), a connecting portion 12 (second connecting portion), and a pair of clamping portions 13 (a pair of second clamping portions). The clamping piece 10 is an integrated body of the gripping portion 11, the connecting portion 12, and the pair of clamping portions 13.

[0018] The gripping portion 11 is a columnar body extending along the m-axis direction from the connecting portion 12. The gripping portion 11 is a portion of the clamping piece 10 that is gripped by the user of the jig 1.

[0019] The connecting portion 12 is a plate-like body that connects the gripping portion 11 and the pair of clamping portions 13 and branches into two branches in the X2 direction from the gripping portion 11. As shown in Figures 1 and 3, the connecting portion 12 is configured in a T-shape when viewed in the Z1 direction.

[0020] The pair of clamping portions 13 are provided on a portion of the T-shaped connecting portion 12 that extends in the Y-axis direction and protrude in the X2 direction from that portion. As shown in Fig. 2, the clamping portions 13 have a shape that is bent in a convex shape in the Z2 direction when viewed in the Y-axis direction, and clamp an oil pipe P together with the pair of clamping portions 13 (described later) (see Fig. 6).

[0021] The clamping piece 20 has a gripping portion 21 (first gripping portion), a connecting portion 24 (first connecting portion), a pair of clamping portions 25 (pair of first clamping portions), a support portion 22 (first support portion), and a support portion 23 (second support portion). The clamping piece 20 is an integrated member of the gripping portion 21, the connecting portion 24, the pair of clamping portions 25, and the support portions 22, 23.

[0022] 2, the gripping portion 21 is a columnar body extending in the X1 direction from the connecting portion 24. The gripping portion 21 is a portion of the clamping piece 20 that is gripped by the user of the jig 1.

[0023] The connecting portion 24 is a plate-like member that connects the gripping portion 21, the pair of clamping portions 25, and the support portions 22 and 23, and that branches into two branches in the X2 direction from the gripping portion 21. As shown in Fig. 1, the connecting portion 24 is configured in a T-shape when viewed in the Z1 direction.

[0024] The pair of clamping portions 25 are provided in a portion of the T-shaped connecting portion 24 that extends along the Y-axis direction while bending in the Z-axis direction (hereinafter referred to as the bent portion), and protrude in the X2 direction from the center of the bent portion in the Y-axis direction. The inclination angle of the bent portion with respect to the XY plane and the dimension in the Y-axis direction may be changed as appropriate depending on, for example, the shape of the oil pipe P.

[0025] As shown in Fig. 2, the clamping portions 25 have a shape that is bent in a convex shape in the Z1 direction when viewed in the Y-axis direction. As shown in Fig. 1, each of the pair of clamping portions 25 faces each of the pair of clamping portions 13 of the clamping piece 10 in the Z-axis direction when the jig 1 is in a closed state, which will be described later.

[0026] The support portion 22 is provided at one end of the bent portion of the connecting portion 24 on the Y2 side. The support portion 22 is configured as an L-shape when viewed in the Z-axis direction, and has a U-shaped notch 221 and a U-shaped groove 222 along the periphery of the notch 221. The notch 221 is provided at a portion of the support portion 22 that protrudes in the X2 direction from the X2-direction end face of the bent portion, and opens in the X2 direction. As shown in FIG. 3, the groove 222 is a portion of the jig 1 that supports the gasket S1 (first seal member). As shown in FIG. 2, the surface of the support portion 22 on the Z1 side is inclined at a predetermined angle with respect to the XY plane. The inclination angle may be changed as appropriate depending on, for example, the shape of the oil pipe P.

[0027] The support portion 23 is provided at the other end of the bending portion of the connecting portion 24 on the Y1 direction side. The support portion 23 is configured in a fan shape when viewed in the Z axis direction, and has a U-shaped notch 231 that opens in the X2 direction, and a U-shaped groove 232 that runs along the periphery of the notch 231. As shown in FIG. 3, the groove 232 is a portion of the jig 1 that supports the gasket S2 (second sealing member).

[0028] As shown in FIG. 2, the surface of the support portion 23 on the Z1 side is inclined at a predetermined angle with respect to the XY plane. This inclination angle is different from the inclination angle of the surface of the support portion 22 on the Z1 side with respect to the XY plane. As a result, even if the oil pipe P has a shape that bends in the Z axis direction, the support portion 22 can support one end E1 of the oil pipe P via the gasket S1, and the support portion 23 can support the other end E2 of the oil pipe P via the gasket S2 (see FIG. 6). In this case, the oil pipe P can be assembled even if the assembly position corresponding to one end E1 of the bent oil pipe P and the assembly position corresponding to the other end E2 of the oil pipe P are not on the same plane. The inclination angle of the surface of the support portion 23 on the Z1 side with respect to the XY plane may be changed as appropriate depending on, for example, the shape of the oil pipe P.

[0029] There are no particular limitations on the material that constitutes the support portions 22, 23 and the connecting portion 24. For example, the material may be a material that allows the user of the jig 1 to adjust the inclination angle of the bent portion relative to the XY plane, the inclination angle of the surface of the support portion 22 on the Z1 direction side relative to the XY plane, and the inclination angle of the surface of the support portion 23 on the Z1 direction side relative to the XY plane to desired angles.

[0030] 2, the support shaft portion 30 is provided between the clamping pieces 10 and 20 and axially supports the clamping pieces 10 and 20. The clamping pieces 10 and 20 are combined at the support shaft portion 30.

[0031] The biasing mechanism is a member that constantly biases the linking portion 12 and the pair of clamping portions 13 in the Z1 direction around the support shaft portion 30, and restricts the rotation of the clamping piece 10 around the Y axis around the support shaft portion 30. There are no particular restrictions on where the biasing mechanism is provided in the jig 1, and it may be provided near the support shaft portion 30, for example.

[0032] 1 to 3 due to the biasing mechanism, jig 1 is always in the closed state shown in Figures 1 to 3 except when an external force is applied to gripping portions 11, 21 in the Z-axis direction, such as when a user grips gripping portions 11, 21. The structure of the biasing mechanism is not particularly limited, and may be a structure that biases linking portion 12 and the pair of clamping portions 13 in the Z1 direction using a spring such as a coil spring or a leaf spring, or an elastic member such as rubber.

[0033] 4 to 6 are explanatory views for explaining the operation of the jig 1. When an external force in the Z1 direction (a force greater than the biasing force with which the biasing mechanism biases the linking portion 12 and the pair of clamping portions 13 in the Z1 direction) is applied to the gripping portion 11 of the jig 1, as shown in Fig. 4, the clamping piece 10 rotates around the Y axis around the support shaft portion 30, and assumes the open state shown in Fig. 5.

[0034] When the jig 1 transitions from an open state in which a pair of clamping portions 25 support the center of the oil pipe P in the Y-axis direction, and further, the support portion 22 supports one annular end E1 of the oil pipe P through which the first connecting portion C1 passes, via a gasket S1, and the support portion 23 supports the other annular end E2 of the oil pipe P through which the second connecting portion C2 passes, via a gasket S2, to a closed state as the external force becomes less than the biasing force, it becomes the state shown in Figure 6.

[0035] 6, when the jig 1 is in the closed state as shown in the figure, the first connecting portion C1 penetrates an annular washer W1, an annular one end E1 of the oil pipe P, and an annular gasket S1. The first connecting portion C1 has a bolt insertion hole (not shown) therein. A bolt (not shown) passing through the bolt insertion hole is screwed into an assembly position corresponding to the one end E1, whereby the first connecting portion C1 is bolted to the assembly position via the washer W1, the one end E1, and the gasket S1. As a result, the one end E1 of the oil pipe P is assembled to the assembly position via the gasket S1, and the gasket S1 prevents oil leakage.

[0036] 6, when the jig 1 is in the closed state as shown in the same figure, the second connecting portion C2 passes through an annular washer W2, the other annular end E2 of the oil pipe P, and an annular gasket S2. The second connecting portion C2 has a bolt insertion hole (not shown) therein. A bolt (not shown) passing through the bolt insertion hole is screwed into an assembly position corresponding to the other end E2, whereby the second connecting portion C2 is bolt-fastened to the assembly position via the washer W2, the other end E2, and the gasket S2. As a result, the other end E2 of the oil pipe P is assembled to the assembly position via the gasket S2, and the gasket S2 prevents oil leakage.

[0037] 7 is an explanatory diagram for explaining an example of a manner in which a user of the jig 1 uses the jig 1 to attach an oil pipe P to a device M. The device M is, for example, a cam carrier / negative pressure pump.

[0038] As can be understood from the above description, the jig 1 according to this embodiment includes the clamping pieces 20 and 10 that clamp the oil pipe P. The clamping piece 20 has a support portion 22 that supports one end E1 of the oil pipe P via a gasket S1, a support portion 23 that supports the other end E2 of the oil pipe P via a gasket S2, a gripping portion 21 that extends in the X1 direction that intersects the longitudinal direction of the oil pipe P, a connecting portion 24 that extends in the longitudinal direction and connects the support portion 22, the support portion 23, and the gripping portion 21, and a pair of clamping portions 25 that protrude from the connecting portion 24 in the X2 direction opposite to the X1 direction.The clamping piece 10 has a gripping portion 11 that extends in the m-axis direction that intersects the longitudinal direction, a connecting portion 12 that extends in the longitudinal direction and connects to the gripping portion 11, and a pair of clamping portions 13 that protrude from the connecting portion 12 in the X2 direction and clamp the oil pipe P between the pair of clamping portions 25.

[0039] According to the above aspect, a user of the jig 1 can manipulate the oil pipe P using the jig 1. This allows the user to simultaneously position one end E1 of the oil pipe P at the assembly position and the other end E2 at the assembly position. Furthermore, by pressing the oil pipe P in the Z1 direction using the jig 1 while the one end E1 and the other end E2 are positioned at their corresponding assembly positions, the user can maintain the state in which the one end E1 and the other end E2 are positioned at their corresponding assembly positions. Therefore, the user of the jig 1 can assemble the other end E2 at the corresponding assembly position while maintaining the state in which the one end E1 is positioned at the corresponding assembly position. Alternatively, the user can assemble the one end E1 at the corresponding assembly position while maintaining the state in which the other end E2 is positioned at the corresponding assembly position. This eliminates the conventional difficulty in assembling the oil pipe P, which occurs when one end of the oil pipe P is assembled and the other end becomes difficult to approach the corresponding assembly position. Therefore, compared to when the jig 1 is not used, it becomes easier for the user to assemble the oil pipe P.

[0040] In the example shown in Figure 7, a user of the jig 1 can manipulate the oil pipe P via the jig 1 to simultaneously insert the first connecting portion C1 that penetrates one annular end E1 of the oil pipe P into the corresponding mounting hole of the equipment M and insert the second connecting portion C2 that penetrates the other annular end E2 of the oil pipe P into the corresponding mounting hole of the equipment M, and further, by pressing the oil pipe P in the Z1 direction via the jig 1, the first and second connecting portions C1, C2 can be maintained in a state where they are each inserted into the corresponding mounting hole.

[0041] This allows a user of the jig 1 to bolt the second connecting portion C2 to the corresponding mounting hole of the device M via the washer W2, the other end E2, and the gasket S2, while maintaining the first connecting portion C1 inserted into the corresponding mounting hole of the device M. Alternatively, while maintaining the second connecting portion C2 inserted into the corresponding mounting hole of the device M, the user can bolt the first connecting portion C1 to the corresponding mounting hole via the washer W1, the one end E1, and the gasket S1. Therefore, unlike the conventional method, when one end of the oil pipe P is assembled into the corresponding mounting hole, it becomes difficult to bring the other end close to the corresponding mounting hole, which makes it difficult to assemble the other end into the corresponding mounting hole. Therefore, compared to not using the jig 1, the user can assemble the oil pipe P to the device M more easily.

[0042] (An example of how to assemble an oil pipe) Next, an example of a method for assembling the oil pipe P to the equipment M using the jig 1 will be described.

[0043] The user of the jig 1 manipulates the oil pipe P while holding the gripping portion 21 of the jig 1 that clamps the oil pipe P, as shown in Figure 6, to insert the first connecting portion C1 that passes through one end E1 into the corresponding mounting hole of the equipment M, and insert the second connecting portion C2 that passes through the other end E2 into the corresponding mounting hole of the equipment M.

[0044] Next, the user of the jig 1 temporarily tightens the bolts that pass through the bolt insertion holes in the first connecting portion C1 to temporarily fasten the first connecting portion C1 to the corresponding mounting holes. Subsequently, the user of the jig 1 temporarily tightens the bolts that pass through the bolt insertion holes in the second connecting portion C2 to temporarily fasten the second connecting portion C2 to the corresponding mounting holes.

[0045] Next, the user of the jig 1 pulls out the jig 1 in the X1 direction, leaving the oil pipe P in the state shown in Fig. 8. Fig. 8 is a diagram showing an example of the state of the oil pipe P temporarily fastened to the device M.

[0046] Next, the user of the jig 1 finally tightens the bolts in the first connecting portion C1 and fastens the first connecting portion C1 to the corresponding mounting hole, thereby assembling one end E1 of the oil pipe P to the equipment M. Here, because the second connecting portion C2 is provisionally fastened to the corresponding mounting hole as described above, the second connecting portion C2 does not come off the corresponding mounting hole when the first connecting portion C1 is fastened.

[0047] Next, the user of the jig 1 tightens the bolts in the second connecting portion C2 and fastens the second connecting portion C2 to the corresponding mounting hole, thereby assembling the other end E2 of the oil pipe P to the equipment M. In this way, the oil pipe P is assembled to the equipment M.

[0048] From the description of the above example, it can be seen that by using the jig 1 when assembling the oil pipe P to the equipment M, the user can temporarily fasten the first connecting portion C1 to the corresponding mounting hole while temporarily fastening the second connecting portion C2 to the corresponding mounting hole. As a result, even if one end of the oil pipe P is fastened to the corresponding mounting hole via the connecting portion, the other end will not come off the corresponding mounting hole as a result of this fastening. Therefore, the user can easily assemble the oil pipe P to the equipment M.

[0049] 3. Supplementary Information The oil pipe assembly jig exemplified in the above-described embodiment is a tool used when assembling an oil pipe that is connected to a vehicle's vacuum pump and that guides the oil sucked up by the vacuum pump to other equipment, but is not limited to this and may also be used to assemble pipes other than the oil pipe, and the uses of the present disclosure are not particularly limited.

[0050] The oil pipe P exemplified in the above embodiment is an oil pipe for vacuum pump oil that is connected to a vacuum pump of a vehicle and guides the oil sucked up by the vacuum pump to other devices, but is not limited to this. For example, the oil pipe P may be an oil lubrication pipe connected to a cam carrier and a negative pressure pump, or a high-pressure fuel pipe connected to a cam carrier and a high-pressure fuel pump.

[0051] Furthermore, the effects described herein are merely descriptive or exemplary and not limiting, meaning that the present disclosure may provide other effects in addition to or in place of the above-described effects that would be apparent to one skilled in the art from the description herein.

[0052] Although the preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings, the technology of the present disclosure is not limited to the above-described embodiments. It is clear that a person skilled in the art of the technology to which the present disclosure pertains can conceive of various modified or altered examples within the scope of the technical ideas described in the claims, and it is understood that these also naturally fall within the technical scope of the present disclosure.

[0053] 4. Notes The following aspects can be understood from the above-described exemplary embodiments.

[0054] An oil pipe assembling jig according to one aspect (aspect 1) of the present disclosure includes a first clamping piece and a second clamping piece that clamp an oil pipe. The first clamping piece has a first support portion that supports one end of the oil pipe via a first seal member, a second support portion that supports the other end of the oil pipe via a second seal member, a first gripping portion that extends in a first direction that intersects with the longitudinal direction of the oil pipe, a first connecting portion that extends in the longitudinal direction and connects the first support portion, the second support portion, and the first gripping portion, and a pair of first clamping portions that protrude from the first connecting portion in a second direction opposite to the first direction, and the second clamping piece has a second gripping portion that extends in a third direction that intersects with the longitudinal direction, a second connecting portion that extends in the longitudinal direction and connects to the second gripping portion, and a pair of second clamping portions that protrude from the second connecting portion in the second direction and clamp the oil pipe between the pair of first clamping portions.

[0055] According to the first aspect, a user of an oil pipe assembly jig can manipulate an oil pipe using the jig. This allows the user to simultaneously position one end of the oil pipe at an assembly position and the other end at an assembly position. Furthermore, by pressing the oil pipe via the jig while one end and the other end are positioned at their respective assembly positions, the user can maintain the state in which each of the one end and the other end is positioned at its corresponding assembly position. This allows the user to assemble the other end while maintaining the state in which one end is positioned at its corresponding assembly position. Alternatively, the user can assemble the one end at its corresponding assembly position while maintaining the state in which the other end is positioned at its corresponding assembly position. This eliminates the conventional difficulty in assembling the oil pipe, which occurs when one end of the oil pipe is assembled and the other end becomes difficult to approach. This makes it easier for the user to assemble the oil pipe compared to when the oil pipe assembly jig is not used.

[0056] According to a specific example (Aspect 2) of Aspect 1, the first and second sealing members are gaskets, which prevent oil leakage between one end of the oil pipe and the corresponding assembly point and / or between the other end of the oil pipe and the corresponding assembly point.

[0057] According to a specific example (Aspect 3) of Aspect 2, the inclination angle of the first support portion relative to the horizontal plane and the inclination angle of the second support portion relative to the horizontal plane are different from each other. According to the third aspect, even if the oil pipe has a shape that bends in the longitudinal direction, the first support portion can support one end of the oil pipe via the first seal member, and the second support portion can support the other end of the oil pipe via the second seal member. This makes it possible to assemble the oil pipe even if the assembly position corresponding to one end of the bent oil pipe and the assembly position corresponding to the other end of the oil pipe are not on the same plane.

[0058] According to a specific example (Aspect 4) of Aspect 3, the oil pipe is an oil pipe for vacuum pump oil. According to Aspect 4, by using an oil pipe assembly jig, it becomes easy to assemble the oil pipe for vacuum pump oil to the device.

[0059] An oil pipe assembling method according to one aspect (aspect 5) of the present disclosure uses the oil pipe assembling jig of any one of aspects 1 to 4. As a result, even if one end of the oil pipe is fastened to a corresponding mounting hole, the other end does not come off the corresponding mounting hole as a result of the fastening. This allows the user to easily assemble the oil pipe. [Explanation of symbols]

[0060] 1...Oil pipe assembly jig 10...Pinching piece (second holding piece) 11...Gripping part (second gripping part) 12...Connecting section (second connecting section) 13...Pair of clamping parts (pair of second clamping parts) 20...Pinching piece (first pinching piece) 21...Gripping part (first gripping part) 22...Support part (first support part) 23...Support part (second support part) 24...Connecting section (first connecting section) 25...Pair of clamping parts (pair of first clamping parts) S1...Gasket (first sealing member) S2: Gasket (second sealing member) P...Oil pipe

Claims

1. The oil pipe is clamped by a first clamping piece and a second clamping piece. The first clamping piece is a first support portion that supports one end of the oil pipe via a first seal member; a second support portion that supports the other end of the oil pipe via a second seal member; a first gripping portion extending in a first direction intersecting a longitudinal direction of the oil pipe; a first connecting portion extending in the longitudinal direction and connecting the first support portion, the second support portion, and the first grip portion; a pair of first clamping portions protruding from the first connecting portion in a second direction opposite to the first direction, The second clamping piece is a second gripping portion extending in a third direction intersecting the longitudinal direction; a second connecting portion extending in the longitudinal direction and connected to the second gripping portion; a pair of second clamping portions that protrude from the second connecting portion in the second direction and clamp the pair of first clamping portions and the oil pipe; Oil pipe assembly jig.

2. the first and second sealing members are gaskets; The oil pipe assembling jig according to claim 1.

3. 3. The oil pipe assembling jig according to claim 2, wherein an inclination angle of the first support portion relative to the horizontal plane and an inclination angle of the second support portion relative to the horizontal plane are different from each other.

4. The oil pipe is an oil pipe for vacuum pump oil. The oil pipe assembling jig according to claim 3.

5. The oil pipe assembling jig according to any one of claims 1 to 4 is used. How to install oil pipes.

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