Method for Controlling a Motor of a Hand-Held Power Tool
US-2020139529-A1 · May 7, 2020 · US
Belt sander
US11958159B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11958159-B2 |
| Application number | US-201916973120-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 12, 2019 |
| Priority date | Jun 28, 2018 |
| Publication date | Apr 16, 2024 |
| Grant date | Apr 16, 2024 |
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- Title
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Abstract
Official abstract text for this publication.
A belt sander includes a grip portion, an electric motor, a first operating unit, and a second operating unit. The grip portion is configured to be gripped by an operator. The electric motor is configured to drive a sanding belt. The first operating unit is configured to perform an on-operation of the electric motor and configured to keep the on-operation. The second operating unit is configured to perform an on-operation of the electric motor. The electric motor is rotated by the on-operations of both the first operating unit and the second operating unit. The second operating unit is disposed at a position where an operation is allowed by a hand that grips the grip portion.
First claim
Opening claim text (preview).
The invention claimed is: 1. A belt sander comprising: a grip portion configured to be gripped by an operator; an electric motor configured to drive a sanding belt; a first operating unit configured to perform an on-operation of the electric motor and configured to keep the on-operation; a second operating unit configured to perform an on-operation of the electric motor; and a main body that includes the grip portion, wherein the electric motor is rotated by the on-operations of both the first operating unit and the second operating unit, the second operating unit is disposed at a position where an operation is allowed by a hand that grips the grip portion, the surface on the operator side of the grip portion includes an uppermost surface of the main body, and in a reversed state in which the uppermost surface contacts a flat surface, the second operating unit is pressed by the flat surface. 2. The belt sander according to claim 1 , wherein the second operating unit has a dorsal fin shape. 3. The belt sander according to claim 1 , wherein the first operating unit is disposed on a surface on an opposite side of the surface on the operator side of the grip portion, the on-operation of the first operating unit is a pull operation, a keeping of the on-operation of the first operating unit is performed by a lock operation unit configured to switch the keeping and a release of the pull operation state, and an off-operation of the first operating unit is the release of the pull operation. 4. The belt sander according to claim 1 , wherein an off-operation of the second operating unit is performed by releasing the hand from the grip portion. 5. The belt sander according to claim 4 , wherein the second operating unit is disposed on a surface on the operator side of the grip portion, the on-operation of the second operating unit is a press operation, and the off-operation of the second operating unit is a release of the press operation. 6. The belt sander according to claim 1 , wherein a spring is interposed between the first operating unit and the second operating unit, and the spring biases both the first operating unit and the second operating unit in a direction of the off-operation state. 7. The belt sander according to claim 6 , wherein the spring is a torsion spring.
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Frequently asked questions
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- What does patent US11958159B2 cover?
- A belt sander includes a grip portion, an electric motor, a first operating unit, and a second operating unit. The grip portion is configured to be gripped by an operator. The electric motor is configured to drive a sanding belt. The first operating unit is configured to perform an on-operation of the electric motor and configured to keep the on-operation. The second operating unit is configure…
- Who is the assignee on this patent?
- Makita Corp
- What technology area does this patent fall under?
- Primary CPC classification B24B23/06. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Apr 16 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 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).