WO2024023964A1 - Oil-seal removal jig - Google Patents

Oil-seal removal jig Download PDF

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Publication number
WO2024023964A1
WO2024023964A1 PCT/JP2022/028906 JP2022028906W WO2024023964A1 WO 2024023964 A1 WO2024023964 A1 WO 2024023964A1 JP 2022028906 W JP2022028906 W JP 2022028906W WO 2024023964 A1 WO2024023964 A1 WO 2024023964A1
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WO
WIPO (PCT)
Prior art keywords
handle
oil seal
blade
removal jig
fulcrum
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Application number
PCT/JP2022/028906
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French (fr)
Japanese (ja)
Inventor
俊彦 橋本
Original Assignee
三菱電機ビルソリューションズ株式会社
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Application filed by 三菱電機ビルソリューションズ株式会社 filed Critical 三菱電機ビルソリューションズ株式会社
Priority to PCT/JP2022/028906 priority Critical patent/WO2024023964A1/en
Publication of WO2024023964A1 publication Critical patent/WO2024023964A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
    • B25B27/28—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same positioning or withdrawing resilient bushings or the like

Definitions

  • the present disclosure relates to an oil seal removal jig.
  • a conventional oil seal removal tool includes a tool body and a claw.
  • the tool body is provided with a through hole and a fulcrum.
  • the pawl is fixed to the tool body.
  • the present disclosure has been made to solve the above-mentioned problems, and aims to provide an oil seal removal jig that can more easily remove an oil seal.
  • the oil seal removal device includes a handle that is held by an operator, a blade that is provided at the tip of the handle and that pierces the oil seal, and a blade that is provided in the middle of the handle, and It is provided with a fulcrum body that protrudes in a direction perpendicular to the longitudinal direction of the handle and serves as a fulcrum when rotating the handle by being applied to a portion to which an oil seal is attached.
  • the oil seal removal jig of the present disclosure the oil seal can be removed more easily.
  • FIG. 3 is a plan view showing an oil seal removal jig in Embodiment 1.
  • FIG. FIG. 2 is a side view showing the oil seal removal jig of FIG. 1;
  • FIG. 2 is a bottom view showing the oil seal removal jig of FIG. 1;
  • FIG. 2 is a front view showing the oil seal removal jig shown in FIG. 1;
  • FIG. 2 is a rear view showing the oil seal removal jig of FIG. 1;
  • FIG. 3 is a cross-sectional view showing an oil seal, a shaft member, and a mounted portion in the first embodiment.
  • FIG. 2 is an explanatory diagram showing a state when the blade portion of the oil seal removal jig shown in FIG. 1 is pierced into an oil seal.
  • FIG. 2 is an explanatory diagram showing a state when the blade portion of the oil seal removal jig shown in FIG. 1 is pierced into an oil seal.
  • FIG. 2 is an explanatory diagram showing a state when rotating the handle of the oil seal removal jig shown in FIG. 1;
  • FIG. 2 is a side view showing a state in which the blade portion of the oil seal removal jig shown in FIG. 1 is lifted;
  • 10 is a side view showing a state in which the fulcrum body is moved away from the blade part from the state shown in FIG. 9.
  • FIG. 11 is a side view showing a state when the blade portion is lifted from the state shown in FIG. 10.
  • FIG. It is a top view which shows only a 1st blade sticking into an oil seal and rotating a handle. It is a top view which shows the state when the blade which pierces an oil seal is switched from a 1st blade to a 2nd blade.
  • FIG. 14 is a plan view showing the reverse rotation of the handle from the state shown in FIG. 13;
  • FIG. 6 is a side view showing the oil seal removal jig when another fulcrum body is attached.
  • FIG. 1 is a plan view showing an oil seal removal jig in the first embodiment.
  • 2 is a side view showing the oil seal removal jig of FIG. 1.
  • FIG. 3 is a bottom view of the oil seal removal jig shown in FIG. 1.
  • FIG. 4 is a front view showing the oil seal removal jig of FIG. 1.
  • 5 is a rear view of the oil seal removal jig shown in FIG. 1.
  • FIG. FIG. 6 is a side view showing an oil seal, a shaft member, and a mounted portion in the first embodiment.
  • an oil seal removal jig 100 is used to remove the oil seal 300 shown in FIG. 6 from the mounted portion 400 along the shaft member 200.
  • the shaft member 200 is, for example, the main shaft of an elevator hoist (not shown).
  • the mounted portion 400 is a part of the hoisting machine that supports the main shaft.
  • the oil seal 300 is attached to the attached portion 400 .
  • the oil seal 300 is an annular member made of rubber, and prevents the lubricant applied inside the hoisting machine from flowing out.
  • the oil seal removal jig 100 includes a handle 110, a blade portion 120, a fulcrum 130, and a protection member 140.
  • the handle 110 is a member that is held by the operator.
  • the blade portion 120 is provided at the tip of the handle 110. Further, an end 111 of the handle 110 opposite to the tip is chamfered.
  • the blade portion 120 is a portion that pierces the oil seal 300, and includes a first blade 121 and a second blade 122.
  • the first blade 121 projects obliquely from the tip of the handle 110 with respect to the longitudinal direction of the handle 110.
  • the second blade 122 projects from the tip of the handle 110 in a direction different from that of the first blade 121, diagonally with respect to the longitudinal direction of the handle 110.
  • the fulcrum body 130 is provided at the middle part of the handle 110.
  • the fulcrum body 130 protrudes in a direction perpendicular to the longitudinal direction of the handle 110. As shown in FIG. 2, the amount of protrusion of the fulcrum body 130 from the handle 110 is h1.
  • the fulcrum body 130 serves as a fulcrum when rotating the handle 110 by being applied to the mounted portion 400 .
  • the fulcrum body 130 has a fulcrum body portion 131 and a fastener 132.
  • the fastener 132 fixes the position of the fulcrum main body part 131 with respect to the handle 110.
  • the fastener 132 is loosened, the fulcrum main body portion 131 becomes movable in the longitudinal direction of the handle 110.
  • the fulcrum body 130 is attached to the handle 110 so that its position in the longitudinal direction of the handle 110 can be adjusted.
  • the protection member 140 is a member that protects the blade portion 120.
  • the protection member 140 is an annular member made of rubber and is fixed to the handle 110.
  • the protection member 140 is pressed against the oil seal 300 and elastically deforms before the blade portion 120 comes into contact with the oil seal 300. Note that depending on the orientation of the oil seal removal jig 100, the protection member 140 may be pressed against the mounted portion 400 and elastically deformed.
  • FIG. 7 is an explanatory diagram showing a state when the blade portion 120 of the oil seal removal jig 100 of FIG. 1 is pierced into the oil seal 300.
  • the direction in which the oil seal 300 is removed will be referred to as a first direction, and the opposite direction will be referred to as a second direction.
  • the operator places the tip of the blade portion 120 against the oil seal 300. Then, by hitting the end portion 111 with the hammer 500, the blade portion 120 pierces the oil seal 300.
  • FIG. 8 is an explanatory diagram showing a state when rotating the handle 110 in the oil seal removal jig 100 of FIG. 1.
  • the operator places the bottom of the fulcrum body 130 on the mounted portion 400 and rotates the handle 110. As a result, the blade portion 120 is lifted in the first direction, and the oil seal 300 is removed from the attached portion 400.
  • FIG. 9 is a side view showing a state in which the blade portion 120 of the oil seal removal jig 100 of FIG. 1 is lifted in the first direction.
  • FIG. 10 is a side view showing a state in which the fulcrum body 130 is moved away from the blade portion 120 from the state shown in FIG.
  • FIG. 11 is a side view showing the state when the blade portion 120 is lifted in the first direction from the state shown in FIG. Note that the oil seal 300 is not illustrated in FIGS. 9 to 11.
  • the operator thrusts the blade 120 into the oil seal 300, rotates the handle 110, and lifts the blade 120 in the first direction. Let the lifting height at this time be L1.
  • the operator rotates the handle 110 to further lift the blade portion 120 in the first direction.
  • the blade portion 120 is lifted up to a lifting height L2 higher than the lifting height L1.
  • FIG. 12 is a plan view showing how the handle 110 is rotated by piercing only the first blade 121 into the oil seal 300.
  • FIG. 13 is a plan view showing a state when the blade piercing the oil seal 300 is switched from the first blade 121 to the second blade 122.
  • FIG. 14 is a plan view showing reverse rotation of the handle 110 from the state shown in FIG. 13.
  • the operator pierces only the first blade 121 into the oil seal 300, and then puts the bottom of the fulcrum body 130 against the mounted portion 400. Then, the operator rotates the handle 110 using the longitudinal direction of the handle 110 as the rotation axis so as to lift the first blade 121 in the first direction. This rotation lifts the oil seal 300 using the fulcrum body 130 as a fulcrum.
  • the operator pulls out the first blade 121 from the oil seal 300 while piercing the second blade 122 into the oil seal 300. At this time, the operator pierces the second blade 122 at a position in the second direction from the position where the first blade 121 was pierced.
  • the operator rotates the handle 110 in a direction that lifts the second blade 122 in the first direction. This rotation further lifts the oil seal 300 using the fulcrum body 130 as a fulcrum.
  • FIG. 15 is a side view showing the oil seal removal jig 100 when another fulcrum body is attached.
  • the fulcrum body 130 and the other fulcrum body 130a are each removable from the end portion 111 of the handle 110. Therefore, the fulcrum body 130 can be replaced with another fulcrum body 130a.
  • the amount of protrusion of the other fulcrum body 130a from the handle 110 is h2.
  • the protrusion amount h2 is different from the protrusion amount h1.
  • the protrusion amount h2 is longer than the protrusion amount h1.
  • the oil seal removal jig 100 of the first embodiment includes a blade portion 120 and a fulcrum body 130.
  • the blade portion 120 is provided at the tip of the handle 110 and is pierced into the oil seal 300.
  • the fulcrum body 130 is provided at an intermediate portion of the handle 110 and protrudes in a direction perpendicular to the longitudinal direction of the handle 110. Further, the fulcrum body 130 serves as a fulcrum when rotating the handle 110 by being applied to the mounted portion 400 to which the oil seal 300 is mounted.
  • the oil seal 300 can be removed more easily.
  • the fulcrum body 130 is attached to the handle 110 so that its position in the longitudinal direction of the handle 110 can be adjusted. Therefore, the lifting height of the blade portion 120 when the handle 110 is rotated can be adjusted.
  • the blade portion 120 has a first blade 121 that projects obliquely from the tip of the handle 110 with respect to the longitudinal direction of the handle 110. Further, the blade portion 120 has a second blade 122 that protrudes from the tip of the handle 110 in a direction different from the first blade 121, diagonally with respect to the longitudinal direction of the handle 110. Therefore, the load applied to the blade portion 120 when lifting the oil seal 300 can be dispersed.
  • the oil seal removal jig 100 further includes another fulcrum body 130a whose protrusion amount from the handle 110 is different from that of the fulcrum body 130. Further, the fulcrum body 130 and the other fulcrum body 130a are each removable from the handle 110. Therefore, by replacing the fulcrum body 130, the lifting height of the blade portion 120 can be adjusted.
  • an end 111 of the handle 110 opposite to the tip is chamfered. Therefore, compared to the case where there is a corner, damage caused when the end 111 is strongly hit can be reduced.
  • the end portion 111 is hit by the hammer 500, if the end portion 111 is not chamfered, the shape of the corner portion will be deformed. If the corner of the end portion 111 is significantly deformed, it becomes difficult to remove the fulcrum body 130 from the end portion 111, making it impossible to replace the fulcrum body 130. Therefore, this can be avoided by chamfering the end portion 111 as in the first embodiment.
  • the protection member 140 is pressed against at least one of the mounted part 400 and the oil seal 300 before the blade part 120 comes into contact with the oil seal 300. It is elastically deformed. Therefore, the oil seal removal jig 100 can be used without removing the protection member 140 from the handle 110.
  • Oil seal removal jig 110 handle, 111 end, 120 blade, 121 first blade, 122 second blade, 130, 130a fulcrum body, 140 protection member, 200 shaft member, 300 oil seal, 400 mounted part , 500 hammer.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)

Abstract

This oil-seal removal tool comprises: a handle to be held by a worker; a blade part provided at the end of the handle to pierce an oil seal; and a fulcrum body projecting in a direction orthogonal to the longitudinal direction of the handle, and which, by being put on an attached part on which the oil seal is attached, functions as a fulcrum for rotating the handle.

Description

オイルシール外し治具Oil seal removal jig

　本開示は、オイルシール外し治具に関するものである。 The present disclosure relates to an oil seal removal jig.

　従来のオイルシール抜き工具は、工具本体と爪とを備えている。工具本体には、貫通孔と支点部とが設けられている。爪は、工具本体に固定されている。オイルシールをエンジンハウジングから外す際には、作業者は、工具本体の貫通孔に操作ハンドルを挿入し、支点部をエンジンハウジングに接触させ、爪の先端をオイルシールに引っ掛けてから、支点部を支点として操作ハンドルを回転させる（例えば、特許文献１）。 A conventional oil seal removal tool includes a tool body and a claw. The tool body is provided with a through hole and a fulcrum. The pawl is fixed to the tool body. When removing the oil seal from the engine housing, the operator must insert the operating handle into the through hole of the tool body, bring the fulcrum into contact with the engine housing, hook the tip of the claw onto the oil seal, and then remove the fulcrum. The operating handle is rotated as a fulcrum (for example, Patent Document 1).

特開２００６－１５４７３号公報Japanese Patent Application Publication No. 2006-15473

　上記のような従来のオイルシール抜き工具においては、オイルシールを取り外す際に、専用の操作ハンドルを工具本体の貫通孔に挿入する必要があり、作業に手間がかかる。 In the conventional oil seal removal tool as described above, when removing the oil seal, it is necessary to insert a dedicated operating handle into the through hole of the tool body, which takes time and effort.

　本開示は、上記のような課題を解決するためになされたものであり、オイルシールをより容易に外すことができるオイルシール外し治具を得ることを目的とする。 The present disclosure has been made to solve the above-mentioned problems, and aims to provide an oil seal removal jig that can more easily remove an oil seal.

　本開示に係るオイルシール取り外し器具は、作業者によって把持される柄、柄の先端に設けられており、オイルシールに対して突き刺される刃部、及び柄の中間部に設けられており、かつ、柄の長手方向に直交する方向へ突出しており、オイルシールが装着されている被装着部に当てられることにより、柄を回転させる際の支点となる支点体を備えている。 The oil seal removal device according to the present disclosure includes a handle that is held by an operator, a blade that is provided at the tip of the handle and that pierces the oil seal, and a blade that is provided in the middle of the handle, and It is provided with a fulcrum body that protrudes in a direction perpendicular to the longitudinal direction of the handle and serves as a fulcrum when rotating the handle by being applied to a portion to which an oil seal is attached.

　本開示のオイルシール外し治具によれば、オイルシールをより容易に外すことができる。 According to the oil seal removal jig of the present disclosure, the oil seal can be removed more easily.

実施の形態１におけるオイルシール外し治具を示す平面図である。FIG. 3 is a plan view showing an oil seal removal jig in Embodiment 1. FIG. 図１のオイルシール外し治具を示す側面図である。FIG. 2 is a side view showing the oil seal removal jig of FIG. 1; 図１のオイルシール外し治具を示す底面図である。FIG. 2 is a bottom view showing the oil seal removal jig of FIG. 1; 図１のオイルシール外し治具を示す正面図である。FIG. 2 is a front view showing the oil seal removal jig shown in FIG. 1; 図１のオイルシール外し治具を示す背面図である。FIG. 2 is a rear view showing the oil seal removal jig of FIG. 1; 実施の形態１におけるオイルシール、軸部材及び被装着部を示す断面図である。FIG. 3 is a cross-sectional view showing an oil seal, a shaft member, and a mounted portion in the first embodiment. 図１のオイルシール外し治具における刃部をオイルシールに突き刺すときの状態を示す説明図である。FIG. 2 is an explanatory diagram showing a state when the blade portion of the oil seal removal jig shown in FIG. 1 is pierced into an oil seal. 図１のオイルシール外し治具における柄を回転させるときの状態を示す説明図である。FIG. 2 is an explanatory diagram showing a state when rotating the handle of the oil seal removal jig shown in FIG. 1; 図１のオイルシール外し治具における刃部を持ち上げたときの状態を示す側面図である。FIG. 2 is a side view showing a state in which the blade portion of the oil seal removal jig shown in FIG. 1 is lifted; 図９の状態から支点体を刃部から遠ざけた状態を示す側面図である。10 is a side view showing a state in which the fulcrum body is moved away from the blade part from the state shown in FIG. 9. FIG. 図１０の状態から刃部を持ち上げたときの状態を示す側面図である。11 is a side view showing a state when the blade portion is lifted from the state shown in FIG. 10. FIG. 第１刃のみをオイルシールに突き刺して柄を回転させることを示す平面図である。It is a top view which shows only a 1st blade sticking into an oil seal and rotating a handle. オイルシールに突き刺す刃を第１刃から第２刃に切り替えたときの状態を示す平面図である。It is a top view which shows the state when the blade which pierces an oil seal is switched from a 1st blade to a 2nd blade. 図１３の状態から柄を逆回転させることを示す平面図である。FIG. 14 is a plan view showing the reverse rotation of the handle from the state shown in FIG. 13; 他の支点体を装着したときのオイルシール外し治具を示す側面図であるFIG. 6 is a side view showing the oil seal removal jig when another fulcrum body is attached.

　以下、実施の形態について、図面を参照しながら説明する。 Hereinafter, embodiments will be described with reference to the drawings.

　実施の形態１．
　図１は、実施の形態１におけるオイルシール外し治具を示す平面図である。図２は、図１のオイルシール外し治具を示す側面図である。図３は、図１のオイルシール外し治具を示す底面図である。図４は、図１のオイルシール外し治具を示す正面図である。図５は、図１のオイルシール外し治具を示す背面図である。図６は、実施の形態１におけるオイルシール、軸部材及び被装着部を示す側面図である。 Embodiment 1.
FIG. 1 is a plan view showing an oil seal removal jig in the first embodiment. 2 is a side view showing the oil seal removal jig of FIG. 1. FIG. FIG. 3 is a bottom view of the oil seal removal jig shown in FIG. 1. FIG. 4 is a front view showing the oil seal removal jig of FIG. 1. 5 is a rear view of the oil seal removal jig shown in FIG. 1. FIG. FIG. 6 is a side view showing an oil seal, a shaft member, and a mounted portion in the first embodiment.

　図１において、オイルシール外し治具１００は、図６に示すオイルシール３００を、軸部材２００に沿って被装着部４００から外す際に使用される。 In FIG. 1, an oil seal removal jig 100 is used to remove the oil seal 300 shown in FIG. 6 from the mounted portion 400 along the shaft member 200.

　ここで、軸部材２００は、例えば、図示しないエレベータの巻上機の主軸である。被装着部４００は、主軸を支持する巻上機の一部である。被装着部４００には、オイルシール３００が装着される。オイルシール３００は、ゴム製の環状部材であり、巻上機内に塗布されている潤滑剤の外部流出を防止する。 Here, the shaft member 200 is, for example, the main shaft of an elevator hoist (not shown). The mounted portion 400 is a part of the hoisting machine that supports the main shaft. The oil seal 300 is attached to the attached portion 400 . The oil seal 300 is an annular member made of rubber, and prevents the lubricant applied inside the hoisting machine from flowing out.

　オイルシール外し治具１００は、柄１１０、刃部１２０、支点体１３０、及び保護部材１４０を備えている。 The oil seal removal jig 100 includes a handle 110, a blade portion 120, a fulcrum 130, and a protection member 140.

　柄１１０は、作業者によって把持される部材である。刃部１２０は、柄１１０の先端に設けられている。また、柄１１０における先端とは反対側の端部１１１には、面取りが施されている。 The handle 110 is a member that is held by the operator. The blade portion 120 is provided at the tip of the handle 110. Further, an end 111 of the handle 110 opposite to the tip is chamfered.

　刃部１２０は、オイルシール３００に対して突き刺される部位であり、第１刃１２１と第２刃１２２とを有している。 The blade portion 120 is a portion that pierces the oil seal 300, and includes a first blade 121 and a second blade 122.

　第１刃１２１は、柄１１０の先端から、柄１１０の長手方向に対して斜めに突出している。第２刃１２２は、柄１１０の先端から、柄１１０の長手方向に対して斜めに、第１刃１２１とは異なる方向へ突出している。 The first blade 121 projects obliquely from the tip of the handle 110 with respect to the longitudinal direction of the handle 110. The second blade 122 projects from the tip of the handle 110 in a direction different from that of the first blade 121, diagonally with respect to the longitudinal direction of the handle 110.

　支点体１３０は、柄１１０の中間部に設けられている。支点体１３０は、柄１１０の長手方向に直交する方向へ突出している。図２に示す通り、柄１１０からの支点体１３０の突出量は、ｈ１である。支点体１３０は、被装着部４００に当てられることにより、柄１１０を回転させる際の支点となる。 The fulcrum body 130 is provided at the middle part of the handle 110. The fulcrum body 130 protrudes in a direction perpendicular to the longitudinal direction of the handle 110. As shown in FIG. 2, the amount of protrusion of the fulcrum body 130 from the handle 110 is h1. The fulcrum body 130 serves as a fulcrum when rotating the handle 110 by being applied to the mounted portion 400 .

　支点体１３０は、支点体本体部１３１と留め具１３２とを有している。留め具１３２は、柄１１０に対する支点体本体部１３１の位置を固定する。留め具１３２が緩められると、支点体本体部１３１は、柄１１０の長手方向に移動可能となる。 The fulcrum body 130 has a fulcrum body portion 131 and a fastener 132. The fastener 132 fixes the position of the fulcrum main body part 131 with respect to the handle 110. When the fastener 132 is loosened, the fulcrum main body portion 131 becomes movable in the longitudinal direction of the handle 110.

　このように、支点体１３０は、柄１１０の長手方向における位置を調整可能に柄１１０に取り付けられている。 In this way, the fulcrum body 130 is attached to the handle 110 so that its position in the longitudinal direction of the handle 110 can be adjusted.

　保護部材１４０は、刃部１２０を保護する部材である。保護部材１４０は、ゴム製の環状部材であり、柄１１０に固定されている。 The protection member 140 is a member that protects the blade portion 120. The protection member 140 is an annular member made of rubber and is fixed to the handle 110.

　また、保護部材１４０は、刃部１２０がオイルシール３００に接する前に、オイルシール３００に押し当てられて弾性変形する。尚、保護部材１４０は、オイルシール外し治具１００の向きによっては、被装着部４００に押し当てられて弾性変形することもある。 Further, the protection member 140 is pressed against the oil seal 300 and elastically deforms before the blade portion 120 comes into contact with the oil seal 300. Note that depending on the orientation of the oil seal removal jig 100, the protection member 140 may be pressed against the mounted portion 400 and elastically deformed.

　次に、オイルシール外し治具１００の第１の使用方法について説明する。 Next, a first method of using the oil seal removal jig 100 will be explained.

　図７は、図１のオイルシール外し治具１００における刃部１２０をオイルシール３００に突き刺すときの状態を示す説明図である。尚、以降の説明において、オイルシール３００を外す方向を第１方向とし、その逆方向を第２方向とする。 FIG. 7 is an explanatory diagram showing a state when the blade portion 120 of the oil seal removal jig 100 of FIG. 1 is pierced into the oil seal 300. In the following description, the direction in which the oil seal 300 is removed will be referred to as a first direction, and the opposite direction will be referred to as a second direction.

　まず、作業者は、刃部１２０の先端をオイルシール３００に当てる。そして、ハンマー５００によって端部１１１が叩かれることにより、刃部１２０がオイルシール３００に突き刺さる。 First, the operator places the tip of the blade portion 120 against the oil seal 300. Then, by hitting the end portion 111 with the hammer 500, the blade portion 120 pierces the oil seal 300.

　図８は、図１のオイルシール外し治具１００における柄１１０を回転させるときの状態を示す説明図である。 FIG. 8 is an explanatory diagram showing a state when rotating the handle 110 in the oil seal removal jig 100 of FIG. 1.

　作業者は、支点体１３０の底部を被装着部４００に当て、柄１１０を回転させる。これにより、刃部１２０が第１方向に持ち上がり、オイルシール３００が被装着部４００から外される。 The operator places the bottom of the fulcrum body 130 on the mounted portion 400 and rotates the handle 110. As a result, the blade portion 120 is lifted in the first direction, and the oil seal 300 is removed from the attached portion 400.

　次に、オイルシール外し治具１００の第２の使用方法について説明する。 Next, a second method of using the oil seal removal jig 100 will be explained.

　図９は、図１のオイルシール外し治具１００における刃部１２０を第１方向に持ち上げたときの状態を示す側面図である。図１０は、図９の状態から支点体１３０を刃部１２０から遠ざけた状態を示す側面図である。図１１は、図１０の状態から刃部１２０を第１方向に持ち上げたときの状態を示す側面図である。尚、図９～図１１においては、オイルシール３００を図示していない。 FIG. 9 is a side view showing a state in which the blade portion 120 of the oil seal removal jig 100 of FIG. 1 is lifted in the first direction. FIG. 10 is a side view showing a state in which the fulcrum body 130 is moved away from the blade portion 120 from the state shown in FIG. FIG. 11 is a side view showing the state when the blade portion 120 is lifted in the first direction from the state shown in FIG. Note that the oil seal 300 is not illustrated in FIGS. 9 to 11.

　図９において、作業者は、刃部１２０をオイルシール３００に突き刺さし、柄１１０を回転させて刃部１２０を第１方向に持ち上げる。このときの持ち上げ高さをＬ１とする。 In FIG. 9, the operator thrusts the blade 120 into the oil seal 300, rotates the handle 110, and lifts the blade 120 in the first direction. Let the lifting height at this time be L1.

　そして、作業者は、図１０において、刃部１２０をオイルシール３００から抜かずに、支点体１３０の位置を刃部１２０から遠ざける。これにより、柄１１０の端部１１１側が第１方向に持ち上がる。 Then, in FIG. 10, the operator moves the fulcrum body 130 away from the blade part 120 without removing the blade part 120 from the oil seal 300. As a result, the end 111 side of the handle 110 is lifted in the first direction.

　次に、作業者は、図１１において、柄１１０を回転させて刃部１２０を更に第１方向に持ち上げる。これにより、刃部１２０は、持ち上げ高さＬ１よりも高い持ち上げ高さＬ２まで、持ち上げられる。 Next, as shown in FIG. 11, the operator rotates the handle 110 to further lift the blade portion 120 in the first direction. Thereby, the blade portion 120 is lifted up to a lifting height L2 higher than the lifting height L1.

　このように、刃部１２０を第１方向に持ち上げる操作と、支点体１３０の位置を刃部１２０から遠ざける操作とが繰り返し行われることにより、オイルシール３００が被装着部４００から徐々に外される。 In this way, by repeating the operation of lifting the blade part 120 in the first direction and the operation of moving the fulcrum body 130 away from the blade part 120, the oil seal 300 is gradually removed from the attached part 400. .

　次に、オイルシール外し治具１００の第３の使用方法について説明する。 Next, a third method of using the oil seal removal jig 100 will be explained.

　図１２は、第１刃１２１のみをオイルシール３００に突き刺して柄１１０を回転させることを示す平面図である。図１３は、オイルシール３００に突き刺す刃を第１刃１２１から第２刃１２２に切り替えたときの状態を示す平面図である。図１４は、図１３の状態から柄１１０を逆回転させることを示す平面図である。 FIG. 12 is a plan view showing how the handle 110 is rotated by piercing only the first blade 121 into the oil seal 300. FIG. 13 is a plan view showing a state when the blade piercing the oil seal 300 is switched from the first blade 121 to the second blade 122. FIG. 14 is a plan view showing reverse rotation of the handle 110 from the state shown in FIG. 13.

　図１２において、作業者は、第１刃１２１のみをオイルシール３００に突き刺してから、支点体１３０の底部を被装着部４００に当てる。そして、作業者は、柄１１０の長手方向を回転軸にして、第１刃１２１を第１方向に持ち上げるように柄１１０を回転させる。この回転により、支点体１３０を支点にして、オイルシール３００が持ち上げられる。 In FIG. 12, the operator pierces only the first blade 121 into the oil seal 300, and then puts the bottom of the fulcrum body 130 against the mounted portion 400. Then, the operator rotates the handle 110 using the longitudinal direction of the handle 110 as the rotation axis so as to lift the first blade 121 in the first direction. This rotation lifts the oil seal 300 using the fulcrum body 130 as a fulcrum.

　そして、図１３において、作業者は、第２刃１２２をオイルシール３００に突き刺しながら、第１刃１２１をオイルシール３００から抜く。このとき、作業者は、第１刃１２１が突き刺さっていた位置よりも第２方向の位置に、第２刃１２２を突き刺す。 Then, in FIG. 13, the operator pulls out the first blade 121 from the oil seal 300 while piercing the second blade 122 into the oil seal 300. At this time, the operator pierces the second blade 122 at a position in the second direction from the position where the first blade 121 was pierced.

　そして、図１４において、作業者は、第２刃１２２を第１方向に持ち上げる方向に柄１１０を回転させる。この回転により、支点体１３０を支点にして、オイルシール３００が更に持ち上げられる。 Then, in FIG. 14, the operator rotates the handle 110 in a direction that lifts the second blade 122 in the first direction. This rotation further lifts the oil seal 300 using the fulcrum body 130 as a fulcrum.

　この操作が、第１刃１２１及び第２刃１２２の相互に繰り返し行われることにより、オイルシール３００が被装着部４００から徐々に外される。 By repeating this operation with the first blade 121 and the second blade 122, the oil seal 300 is gradually removed from the mounted portion 400.

　次に、支点体１３０の交換について説明する。 Next, replacement of the fulcrum body 130 will be explained.

　図１５は、他の支点体を装着したときのオイルシール外し治具１００を示す側面図である。支点体１３０と他の支点体１３０ａとは、それぞれ柄１１０に対して端部１１１から着脱可能になっている。このため、支点体１３０を、他の支点体１３０ａに交換することができる。 FIG. 15 is a side view showing the oil seal removal jig 100 when another fulcrum body is attached. The fulcrum body 130 and the other fulcrum body 130a are each removable from the end portion 111 of the handle 110. Therefore, the fulcrum body 130 can be replaced with another fulcrum body 130a.

　他の支点体１３０ａが柄１１０に装着された状態において、柄１１０からの他の支点体１３０ａの突出量は、ｈ２である。突出量ｈ２は、突出量ｈ１とは異なっている。実施の形態１においては、突出量ｈ２は突出量ｈ１よりも長い。 When the other fulcrum body 130a is attached to the handle 110, the amount of protrusion of the other fulcrum body 130a from the handle 110 is h2. The protrusion amount h2 is different from the protrusion amount h1. In the first embodiment, the protrusion amount h2 is longer than the protrusion amount h1.

　このように、柄１１０からの突出量が支点体１３０とは異なる他の支点体１３０ａに交換することができため、刃部１２０の持ち上げ高さを変更することができる。 In this way, it is possible to replace the fulcrum body 130a with another fulcrum body 130a whose protrusion amount from the handle 110 is different from that of the fulcrum body 130, so the lifting height of the blade portion 120 can be changed.

　実施の形態１のオイルシール外し治具１００は、刃部１２０及び支点体１３０を備えている。刃部１２０は、柄１１０の先端に設けられており、オイルシール３００に対して突き刺される。支点体１３０は、柄１１０の中間部に設けられており、かつ、柄１１０の長手方向に直交する方向へ突出している。また、支点体１３０は、オイルシール３００が装着されている被装着部４００に当てられることにより、柄１１０を回転させる際の支点となる。 The oil seal removal jig 100 of the first embodiment includes a blade portion 120 and a fulcrum body 130. The blade portion 120 is provided at the tip of the handle 110 and is pierced into the oil seal 300. The fulcrum body 130 is provided at an intermediate portion of the handle 110 and protrudes in a direction perpendicular to the longitudinal direction of the handle 110. Further, the fulcrum body 130 serves as a fulcrum when rotating the handle 110 by being applied to the mounted portion 400 to which the oil seal 300 is mounted.

　このため、実施の形態１のオイルシール外し治具１００によれば、オイルシール３００をより容易に外すことができる。 Therefore, according to the oil seal removal jig 100 of the first embodiment, the oil seal 300 can be removed more easily.

　また、支点体１３０は、柄１１０の長手方向における位置を調整可能に柄１１０に取り付けられている。このため、柄１１０を回転させたときの刃部１２０の持ち上げ高さを調整することができる。 Further, the fulcrum body 130 is attached to the handle 110 so that its position in the longitudinal direction of the handle 110 can be adjusted. Therefore, the lifting height of the blade portion 120 when the handle 110 is rotated can be adjusted.

　また、刃部１２０は、柄１１０の先端から、柄１１０の長手方向に対して斜めに突出した第１刃１２１を有している。また、刃部１２０は、柄１１０の先端から、柄１１０の長手方向に対して斜めに、第１刃１２１とは異なる方向へ突出した第２刃１２２を有している。このため、オイルシール３００を持ち上げる際の刃部１２０にかかる負荷を分散させることができる。 Further, the blade portion 120 has a first blade 121 that projects obliquely from the tip of the handle 110 with respect to the longitudinal direction of the handle 110. Further, the blade portion 120 has a second blade 122 that protrudes from the tip of the handle 110 in a direction different from the first blade 121, diagonally with respect to the longitudinal direction of the handle 110. Therefore, the load applied to the blade portion 120 when lifting the oil seal 300 can be dispersed.

　また、オイルシール外し治具１００は、柄１１０からの突出量が支点体１３０とは異なる他の支点体１３０ａを更に備えている。また、支点体１３０と他の支点体１３０ａとは、それぞれ柄１１０に対して着脱可能になっている。このため、支点体１３０を取り替えることにより、刃部１２０の持ち上げ高さを調整することができる。 Furthermore, the oil seal removal jig 100 further includes another fulcrum body 130a whose protrusion amount from the handle 110 is different from that of the fulcrum body 130. Further, the fulcrum body 130 and the other fulcrum body 130a are each removable from the handle 110. Therefore, by replacing the fulcrum body 130, the lifting height of the blade portion 120 can be adjusted.

　また、柄１１０における先端とは反対側の端部１１１には、面取りが施されている。このため、角部がある場合に比べ、端部１１１に強く当たったときのダメージを低減させることができる。 Furthermore, an end 111 of the handle 110 opposite to the tip is chamfered. Therefore, compared to the case where there is a corner, damage caused when the end 111 is strongly hit can be reduced.

　また、端部１１１は、ハンマー５００によって叩かれるため、仮に端部１１１の面取りが施されていないと、角部の形状が変形していく。端部１１１の角部が大きく変形すると、端部１１１から支点体１３０を取り外すことが困難になり、支点体１３０の交換ができなくなる。このため、実施の形態１の通り、端部１１１に面取りが施されることにより、これを回避することができる。 Further, since the end portion 111 is hit by the hammer 500, if the end portion 111 is not chamfered, the shape of the corner portion will be deformed. If the corner of the end portion 111 is significantly deformed, it becomes difficult to remove the fulcrum body 130 from the end portion 111, making it impossible to replace the fulcrum body 130. Therefore, this can be avoided by chamfering the end portion 111 as in the first embodiment.

　また、保護部材１４０は、刃部１２０がオイルシール３００に対して突き刺される際に、刃部１２０がオイルシール３００に接する前に、被装着部４００及びオイルシール３００の少なくともいずれか一方に押し当てられて弾性変形する。このため、保護部材１４０を柄１１０から取り外すことなく、オイルシール外し治具１００を使用することができる。 Further, when the blade part 120 is pierced into the oil seal 300, the protection member 140 is pressed against at least one of the mounted part 400 and the oil seal 300 before the blade part 120 comes into contact with the oil seal 300. It is elastically deformed. Therefore, the oil seal removal jig 100 can be used without removing the protection member 140 from the handle 110.

　１００　オイルシール外し治具、１１０　柄、１１１　端部、１２０　刃部、１２１　第１刃、１２２　第２刃、１３０、１３０ａ　支点体、１４０　保護部材、２００　軸部材、３００　オイルシール、４００　被装着部、５００　ハンマー。 100 Oil seal removal jig, 110 handle, 111 end, 120 blade, 121 first blade, 122 second blade, 130, 130a fulcrum body, 140 protection member, 200 shaft member, 300 oil seal, 400 mounted part , 500 hammer.

Claims (6)

　作業者によって把持される柄、
　前記柄の先端に設けられており、オイルシールに対して突き刺される刃部、及び
　前記柄の中間部に設けられており、かつ、前記柄の長手方向に直交する方向へ突出しており、前記オイルシールが装着されている被装着部に当てられることにより、前記柄を回転させる際の支点となる支点体
　を備えているオイルシール外し治具。 handle gripped by the worker,
A blade part provided at the tip of the handle and pierced into the oil seal; and a blade part provided at the middle part of the handle and protruding in a direction perpendicular to the longitudinal direction of the handle, and the blade part is provided at the middle part of the handle and protrudes in a direction perpendicular to the longitudinal direction of the handle. An oil seal removal jig comprising a fulcrum body that serves as a fulcrum when rotating the handle by being applied to a part to which a seal is attached. 　前記支点体は、前記柄の長手方向における位置を調整可能に前記柄に取り付けられている請求項１記載のオイルシール外し治具。 The oil seal removal jig according to claim 1, wherein the fulcrum body is attached to the handle so that its position in the longitudinal direction of the handle can be adjusted. 　前記刃部は、
　前記先端から前記柄の長手方向に対して斜めに突出した第１刃と、
　前記先端から、前記柄の長手方向に対して斜めに、前記第１刃とは異なる方向へ突出した第２刃と
　を有している請求項１又は請求項２に記載のオイルシール外し治具。 The blade portion is
a first blade protruding from the tip obliquely with respect to the longitudinal direction of the handle;
The oil seal removal jig according to claim 1 or 2, further comprising: a second blade protruding from the tip obliquely to the longitudinal direction of the handle in a direction different from the first blade. . 　前記柄からの突出量が前記支点体とは異なる他の支点体
　を更に備え、
　前記支点体と前記他の支点体とは、それぞれ前記柄に対して着脱可能になっている請求項１から請求項３までのいずれか１項に記載のオイルシール外し治具。 further comprising another fulcrum body whose protrusion amount from the handle is different from that of the fulcrum body,
The oil seal removal jig according to any one of claims 1 to 3, wherein the fulcrum body and the other fulcrum body are each detachable from the handle. 　前記柄における前記先端とは反対側の端部には、面取りが施されている請求項１から請求項４までのいずれか１項に記載のオイルシール外し治具。 The oil seal removal jig according to any one of claims 1 to 4, wherein an end of the handle opposite to the tip is chamfered. 　前記柄に固定されている環状の保護部材
　を更に備え、
　前記保護部材は、前記刃部が前記オイルシールに対して突き刺される際に、前記刃部が前記オイルシールに接する前に、前記被装着部及び前記オイルシールの少なくともいずれか一方に押し当てられて弾性変形する請求項１から請求項５までのいずれか１項に記載のオイルシール外し治具。 further comprising an annular protective member fixed to the handle,
The protection member is pressed against at least one of the mounted portion and the oil seal before the blade comes into contact with the oil seal when the blade is pierced into the oil seal. The oil seal removal jig according to any one of claims 1 to 5, which is elastically deformable.
PCT/JP2022/028906 2022-07-27 2022-07-27 Oil-seal removal jig WO2024023964A1 (en)

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Application Number Priority Date Filing Date Title
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ID=89705659

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61184672U (en) * 1985-05-13 1986-11-18
JP3216673U (en) * 2017-08-31 2018-06-14 錚錚 宋 Oil seal removal tool
CN212020637U (en) * 2020-04-20 2020-11-27 淄柴动力有限公司 Portable framework oil seal dismounting device
CN214323203U (en) * 2020-11-06 2021-10-01 中核检修有限公司 Oil seal dismounting device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61184672U (en) * 1985-05-13 1986-11-18
JP3216673U (en) * 2017-08-31 2018-06-14 錚錚 宋 Oil seal removal tool
CN212020637U (en) * 2020-04-20 2020-11-27 淄柴动力有限公司 Portable framework oil seal dismounting device
CN214323203U (en) * 2020-11-06 2021-10-01 中核检修有限公司 Oil seal dismounting device

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