Tool replacing device

US12179339B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-12179339-B2
Application numberUS-202017777615-A
CountryUS
Kind codeB2
Filing dateOct 30, 2020
Priority dateNov 28, 2019
Publication dateDec 31, 2024
Grant dateDec 31, 2024

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A tool exchange device includes a first coupling member attached to one of a body side of an apparatus and a tool side and having a first coupling surface, and a second coupling member attached to the other of the body side and the tool side and having a second coupling surface capable of being in contact with the first coupling surface, in which the first coupling member includes, on the first coupling surface, a first pin, a second pin, and an auxiliary projection, the second coupling member includes, on the second coupling surface, a first hole, a second hole, and an auxiliary hole, a first gap is provided each between the first pin and the first hole and between the second pin and the second hole, a second gap is provided between the auxiliary projection and the auxiliary hole, and the second gap is larger than the first gap.

First claim

Opening claim text (preview).

The invention claimed is: 1. A tool exchange device comprising: a first coupling member attached to one of a body side of an apparatus and a tool side and having a first coupling surface; and a second coupling member attached to the other of the body side and the tool side and having a second coupling surface capable of being in contact with the first coupling surface, wherein the first coupling member includes, on the first coupling surface, a first pin, a second pin, and an auxiliary projection, the second coupling member includes, on the second coupling surface, a first hole that allows the first pin to enter and exit, a second hole that allows the second pin to enter and exit, and an auxiliary hole that allows the auxiliary projection to enter and exit, a first gap in a direction parallel to the second coupling surface is provided each between the first pin and the first hole and between the second pin and the second hole, a second gap in a direction parallel to the second coupling surface is provided between the auxiliary projection and the auxiliary hole, and the second gap is larger than the first gap. 2. The tool exchange device according to claim 1 , wherein a length from the first coupling surface to a distal end of the auxiliary projection is shorter than a length from the first coupling surface to a distal end of the first pin and a length from the first coupling surface to a distal end of the second pin. 3. The tool exchange device according to claim 1 , wherein a distance between the first pin and the second pin is longer than a distance between the auxiliary projection and the first pin, and is longer than a distance between the auxiliary projection and the second pin. 4. The tool exchange device according to claim 1 , wherein the first pin, the second pin, and the auxiliary projection are tapered pins having a tapered portion whose diameter decreases toward the distal end. 5. The tool exchange device according to claim 1 , wherein the second gap is capable of forming a third gap between the auxiliary projection and the auxiliary hole at a position where the first pin and the first hole are in contact with each other and the second pin and the second hole are in contact with each other, and is of a size that allows the auxiliary projection and the auxiliary hole to come into contact with each other by elastic deformation of the first coupling member and the second coupling member in a rotation direction about an axis intersecting the first coupling surface and the second coupling surface. 6. The tool exchange device according to claim 1 , wherein the first pin, the second pin, and the auxiliary projection are provided at positions that are not line-symmetric with respect to a straight line that passes through a center of the first coupling surface and is parallel to the first coupling surface.

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What does patent US12179339B2 cover?
A tool exchange device includes a first coupling member attached to one of a body side of an apparatus and a tool side and having a first coupling surface, and a second coupling member attached to the other of the body side and the tool side and having a second coupling surface capable of being in contact with the first coupling surface, in which the first coupling member includes, on the first…
Who is the assignee on this patent?
Nitta Corp
What technology area does this patent fall under?
Primary CPC classification B25J15/0408. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Dec 31 2024 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).