ELECTRIC TRIMMER

• US 20150258704A1
• Filed: 10/18/2012
• Published: 09/17/2015
• Est. Priority Date: 10/18/2012
• Status: Active Grant

• Current Assignee: Kyocera Industrial Tools Corporation
• Original Assignee: Ryobi Limited (Techtronic Industries Company Limited)
• Inventors: Okada, Atsuhito, Wada, Yasuo, Tanabe, Yasuhiro
• Granted Patent: US 9,604,385 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B23C 1/20 Portable devices or machines details or components, e.g. casings, bodies, of portable power-driven tools not particularly related to the operation performed B25F5/00; Hand-driven devices or machines
• CPC Class Codes: B25F 5/021 with guiding devices guiding devices for hand tools on stands or supports B25H1/0078
• CPC Class Codes: B27C 5/10 Portable hand-operated wood-milling machines; Routers
• CPC Class Codes: Y10T 409/306608 End mill [e.g., router, etc.]

Abstract

An electric trimmer includes: a base; and a trimmer main body configured capable of sliding movement in an axial direction of the base. The base includes a slit that extends in the axial direction and is open, and the base also includes a fixing releasing mechanism disposed so as to straddle both end portions of the slit. Operating the fixing releasing mechanism to reduce a distance between the both end portions of the slit enables clamping of the trimmer main body by the base to be performed. The fixing releasing mechanism is formed as a toggle mechanism that is configured by a combination of three support points and two links, and the fixing releasing mechanism has a shape which follows an outer peripheral surface of the base. Therefore, this electric trimmer includes high operability, strong impact resistance characteristics, and excellent maintenance properties.

Claims

1. An electric trimmer, comprising:

a base acting as a reference; and

a trimmer main body configured capable of sliding movement in an axial direction of the base,

the base comprising a slit that extends in the axial direction and is open, and the base also comprising a fixing releasing mechanism disposed so as to straddle both end portions of the slit,

operating the fixing releasing mechanism to reduce a distance between the both end portions of the slit causing clamping of the trimmer main body by the base to be performed, and

the fixing releasing mechanism being formed as a toggle mechanism that is configured by a combination of three support points and two links, and the fixing releasing mechanism being configured having a shape which follows an outer peripheral surface of the base.

2. The electric trimmer according to claim 1, wherein

the fixing releasing mechanism comprises:

a first support point portion installed on a side of one end portion of the both end portions of the slit;

a first link portion installed tiltably with respect to the first support point portion;

a second support point portion installed on a side of the other end portion of the both end portions of the slit;

a second link portion installed tiltably with respect to the second support point portion; and

a third support point portion that links and connects the first link portion and the second link portion in a tiltable state, and wherein

in a released state of the fixing releasing mechanism, the third support point portion can be disposed in a position most distant from the base,

when the first link portion or the second link portion is tilted so as to approach the base and the third support point portion has arrived on an extended line of a straight line joining the first support point portion and the second support point portion, a dead point at which there occurs transition from the released state to a fixed state of the fixing releasing mechanism is reached, and

further tilting the first link portion or the second link portion from a position of the dead point so as to approach the base causes transition to the fixed state of the fixing releasing mechanism to occur.

3. The electric trimmer according to claim 2, further comprising:

an adjusting mechanism for adjusting a relative distance between the third support point portion and the first support point portion or the second support point portion.

4. The electric trimmer according to claim 2, wherein

a configuration is adopted such that, when the fixing releasing mechanism has been set to a fixed state, there is generated an impact sound due to contact between the base and the first link portion or the second link portion.

5. The electric trimmer according to claim 2, wherein

either of the first link portion or the second link portion is configured as an operating lever, and

a convex shape or a concave shape which is a marker indicating an operating place and which functions as a slip stopper, is formed on a surface of the operating lever.