Device for detecting the replacement state of wear of a high-strength fiber rope during use in lifting gear
US-2016221800-A1 · Aug 4, 2016 · US
Rope inspection device and work machine including same
US2025066168A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2025066168-A1 |
| Application number | US-202218723934-A |
| Country | US |
| Kind code | A1 |
| Filing date | Oct 28, 2022 |
| Priority date | Dec 27, 2021 |
| Publication date | Feb 27, 2025 |
| Grant date | — |
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- Title
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- Abstract
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- First independent claim
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Abstract
Official abstract text for this publication.
A rope inspection device according to the present invention is attached to a work machine that has a machine body, a rising/lowering body capable of rising/lowering relative to the machine body, a winch, and a rope which is led out from the winch and suspended from a tip end of the rising/lowering body and which is connected to a load to be suspended. The rope inspection device includes: a rope inspection instrument capable of inspecting a deterioration state of the rope; and a support unit which is attached to the tip end of the rising/lowering body and which supports the rope inspection instrument such that the rope inspection instrument can follow movement in the horizontal direction of the rope which is suspended from the tip end.
First claim
Opening claim text (preview).
1 . A rope inspection device attached to a work machine that has a machine body, a rising/lowering body capable of rising/lowering relative to the machine body, a winch, and a rope which is led out from the winch and suspended from a tip end of the rising/lowering body and which is connected to a load to be suspended, the rope inspection device comprising: a rope inspection instrument capable of inspecting a deterioration state of the rope; and a support unit which is attached to the tip end of the rising/lowering body and which supports the rope inspection instrument such that the rope inspection instrument can follow movement in a horizontal direction of the rope which is suspended from the tip end. 2 . The rope inspection device according to claim 1 , wherein the support unit includes a pair of left and right support cables suspended from the tip end of the rising/lowering body, and a support mechanism connected to tip ends of the pair of support cables and supporting the rope inspection instrument. 3 . The rope inspection device according to claim 2 , wherein the rising/lowering body includes a sheave disposed at the tip end and including an outer peripheral surface supporting the rope, and a sheave rotation shaft rotatably supporting the sheave, and base ends of the pair of left and right support cables are respectively supported by both ends of the sheave rotation shaft. 4 . The rope inspection device according to claim 2 , wherein the rising/lowering body includes an overwound limit switch attached to the tip end and a detection cable led out from the overwound limit switch, and the support mechanism further includes a detection cable connection part connected to a tip end of the detection cable. 5 . The rope inspection device according to claim 2 , wherein the support mechanism includes a support frame connected to the tip ends of the pair of support cables, and a support body fixed to a center of the support frame and supporting the rope inspection instrument. 6 . The rope inspection device according to claim 5 , wherein the rope inspection instrument has a cylindrical internal space that receives, along an up-down direction, the rope suspended from the tip end of the rising/lowering body. 7 . The rope inspection device according to claim 6 , wherein the rope inspection instrument includes an inspection instrument opening/closing part that opens/closes so as to receive the rope into the internal space along a horizontal direction. 8 . The rope inspection device according to claim 7 , wherein the support mechanism further includes a support opening/closing part that supports the rope inspection instrument so as to surround the rope inspection instrument along a horizontal plane, and that opens/closes so as to receive the rope inspection instrument along a horizontal direction. 9 . The rope inspection device according to claim 6 , wherein the support body supports the rope inspection instrument such that the rope inspection instrument is disposed below the support frame, and the support unit further includes a buffer body disposed below the rope inspection instrument and mitigating an impact applied to the rope inspection instrument. 10 . The rope inspection device according to claim 9 , wherein the buffer body has a tubular shape surrounding the rope, and includes a buffer body opening/closing part that can receive the rope along a horizontal direction. 11 . A work machine comprising: a machine body; a rising/lowering body capable of rising/lowering relative to the machine body; a winch; a rope which is led out from the winch and suspended from a tip end of the rising/lowering body and which is connected to a load to be suspended; and the rope inspection device according to claim 1 to be attached to the tip end of the rising/lowering body. 12 . The rope inspection device according to claim 3 , wherein the rising/lowering body includes an overwound limit switch attached to the tip end and a detection cable led out from the overwound limit switch, and the support mechanism further includes a detection cable connection part connected to a tip end of the detection cable. 13 . The rope inspection device according to claim 3 , wherein the support mechanism includes a support frame connected to the tip ends of the pair of support cables, and a support body fixed to a center of the support frame and supporting the rope inspection instrument. 14 . The rope inspection device according to claim 4 , wherein the support mechanism includes a support frame connected to the tip ends of the pair of support cables, and a support body fixed to a center of the support frame and supporting the rope inspection instrument. 15 . The rope inspection device according to claim 7 , wherein the support body supports the rope inspection instrument such that the rope inspection instrument is disposed below the support frame, and the support unit further includes a buffer body disposed below the rope inspection instrument and mitigating an impact applied to the rope inspection instrument. 16 . The rope inspection device according to claim 8 , wherein the support body supports the rope inspection instrument such that the rope inspection instrument is disposed below the support frame, and the support unit further includes a buffer body disposed below the rope inspection instrument and mitigating an impact applied to the rope inspection instrument.
Assignees
Inventors
Classifications
- B66C23/88Primary
Safety gear (for cranes in general B66C15/00; for rope, cable, or chain winding mechanisms B66D1/54) · CPC title
mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes (with pneumatic or hydraulic motors B66C23/54; vehicle or ship aspects B60 - B63) · CPC title
Other constructional features or details · CPC title
Applications of limit circuits or of limit-switch arrangements (for winding mechanisms B66D1/56) · CPC title
Safety gear (for rope, cable, or chain winding mechanisms B66D1/54) · CPC title
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- What does patent US2025066168A1 cover?
- A rope inspection device according to the present invention is attached to a work machine that has a machine body, a rising/lowering body capable of rising/lowering relative to the machine body, a winch, and a rope which is led out from the winch and suspended from a tip end of the rising/lowering body and which is connected to a load to be suspended. The rope inspection device includes: a rope…
- Who is the assignee on this patent?
- Kobelco Constr Mach Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification B66C23/88. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Thu Feb 27 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).