Router

• US 7,950,882 B2
• Filed: 10/30/2007
• Issued: 05/31/2011
• Est. Priority Date: 12/22/2006
• Status: Expired due to Fees

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Blum, Jens, Roehm, Heiko, Zaiser, Adolf
• Primary Examiner(s): Cadugan; Erica E
• Application Number:
  US11/929,010
• Publication Number:
  US 20080149221A1
• Time in Patent Office: 1,309 Days
• Field of Search: 409/182, 409/180, 409/210, 409/214, 409/218, 409/184, 408/16, 408/241.S, 408/710, 144/136.95, 144/154.5
• US Class Current: 409/182
• 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.]
• CPC Class Codes: Y10T 409/30672 with means to limit penetration into work
• CPC Class Codes: Y10T 409/308176 with position indicator or limit means
• CPC Class Codes: Y10T 409/308624 with limit means to aid in positioning of cutter bit or work [e.g., gauge, stop, etc.]

Abstract

A router has a housing, from the underside of which a tool fitting for a milling tool connected with a drive motor extends and the housing is displaceably accommodated on guide columns for adjusting the milling depth, a device for adjusting the milling depth, which includes a depth adjusting element that is displaceable in the direction of a vertical axis of the router using an adjusting element and that interacts with a stop element, and a device for locking the depth adjusting element. The device for locking the depth adjusting element is integrated in the device for adjusting the milling depth.

Claims

1. A router, comprising

a drive motor;

a milling tool connected with said drive motor;

a housing;

a tool fitting for a milling tool and extending from an underside of said housing;

guide columns on which said housing is displaceably accommodated for adjusting a milling depth in a direction of a vertical axis of the router;

a device for adjusting the milling depth and including a depth adjusting element that is displaceable in a direction of the vertical axis of the router using an adjuster element and that has an end surface that interacts with a stop element to limit the milling depth; and

a device for locking said depth adjusting element, said device for locking said depth adjusting element being integrated in said device for adjusting the milling depth, wherein a sleeve having an external threaded portion encloses said adjuster element, and interacts with an internal threaded portion of a guide element, and wherein the adjuster element has a frictional outer cone and the guide element has a frictional inner cone which interacts with the frictional outer cone for locking said depth adjusting element.

2. A router as defined in claim 1, wherein said devices are configured so that said device for locking said depth adjusting element and said device for adjusting the milling depth act on said depth adjusting element via said adjuster element.

3. A router as defined in claim 1, wherein said depth adjusting element is configured as a rack, and said adjuster element is configured as a shaft with a pinion that meshes with said depth adjusting element.

4. A router as defined in claim 1;

and further comprising a spring device configured so that said depth adjusting element is pressable against said adjuster element without play, using said spring device.

5. A router as defined in claim 1;

wherein said sleeve which encloses said adjuster element is movable in a direction of an axis that is transverse axis relative to the vertical axis of the router so that said device for locking the depth adjusting element acts via said sleeve; and

wherein the guide element guides said sleeve in the direction of said transverse axis and acts on said adjuster element.

6. A router as defined in claim 5, wherein said guide element that guides said sleeve and acts on said adjuster element is non-rotatably supported in said housing.

7. A router as defined in claim 1, and further comprising a base plate, wherein the housing is movable relative to the base plate to adjust the milling depth.

8. A router as defined in claim 1, wherein said adjuster element has a working surface;

and

wherein said sleeve acts upon said working surface of said adjuster element.

9. A router as defined in claim 1;

and further comprising a control lever which is non-rotatably connected with said sleeve.

10. A router as defined in claim 1, wherein rotation of the external threaded portion relative to the internal threaded portion results in movement of the sleeve along an axis transverse relative to the vertical axis of the router.

11. A router as defined in claim 1;

and further comprising an adjusting knob, said adjuster element being non-rotatably connected with said adjusting knob.

12. A router as defined in claim 11;

and further comprising a slip ring provided with a scale and rotatably supported on said adjusting knob.