Power tool arrangement with a spring loaded hose

Patent metadata

Field	Value
Publication number	US-9827625-B2
Application number	US-201113104586-A
Country	US
Kind code	B2
Filing date	May 10, 2011
Priority date	May 10, 2011
Publication date	Nov 28, 2017
Grant date	Nov 28, 2017

Abstract

A power tool arrangement includes a frame having an outlet. A power tool is coupled to the frame and includes a movable working element configured to engage a work piece. A hose includes first and second opposite ends and a biasing device configured to bias the hose into a longitudinally compressed position. The first end is coupled to the outlet. The second end is coupled to the working element such that the second end follows the movement of the working element and the hose thereby moves between the longitudinally compressed position and a longitudinally expanded position.

First claim

What is claimed is:

1. A power tool arrangement, comprising:
a power tool including a working element configured to engage a work piece, wherein the working element is movable between a first position and a second position;
a vacuum device;
a hose including first and second opposite ends; and
a biasing device configured to bias the hose into one of a longitudinally compressed position and a longitudinally expanded position, the first end fluidly coupled to the vacuum device, and the second end fluidly coupled to the vacuum device through the first end and connected to the working element such that the second end follows the working element, and the hose is configured to compress and expand substantially linearly as the working element moves between the first position and the second position, wherein the biasing device is operatively coupled to the hose and configured to bias the hose such that a biasing force is exerted on the working element sufficient to move the working element from the second position to the first position.

2. The arrangement of claim 1 wherein the biasing device comprises an extension coil spring.

3. The arrangement of claim 1 wherein the vacuum device is configured to collect debris produced by the engagement of the work piece by the working element such that the debris is collected via the hose throughout the compression and expansion of the hose.

4. A power tool arrangement, comprising:
a power tool including a working element configured to engage a work piece during movement of the working element in a straight line from a first position to a second position;
a vacuum device;
a hose including first and second opposite ends; and
a biasing device configured to bias the hose toward a longitudinally compressed position, the first end fluidly coupled to the vacuum device, and the second end fluidly coupled to the vacuum device through the first end and connected to the working element such that the second end follows the working element as the working element selectively moves:
away from the first end and the hose thereby undergoes longitudinal expansion; and
toward the first end and the hose thereby undergoes longitudinal compression,

wherein the biasing device is configured to produce a biasing force of a magnitude that can be overcome by an actuating force exerted on the working element such that the hose longitudinally expands in response to the actuating force and longitudinally retracts from a longitudinally expanded condition in response to an absence of the actuating force.

5. The arrangement of claim 4 wherein the biasing device comprises an extension coil spring.

6. The arrangement of claim 4 wherein:
the second end of the hose is coupled to the power tool such that the second end has a fixed position relative to the working element;
the working element is configured to engage the work piece as the working element moves along an axis from the first position to the second position; and
the biasing device is configured to provide the biasing force along the axis.

7. The arrangement of claim 4 wherein the vacuum device is configured to collect debris produced by the engagement of the work piece by the working element such that the debris is collected via the hose throughout compression and expansion of the hose.

8. The arrangement of claim 4 wherein the biasing device is configured to move a working element from a working position to the non-working position in the absence of the actuating force.

9. The power tool arrangement of claim 4 , wherein the hose is configured to compress substantially linearly whenever the hose undergoes longitudinal compression.

Assignees

• Koegel Jan
• Bosch Tool Corp
• Bosch Gmbh Robert

Inventors

• Koegel Jan

Classifications

• B23D59/006 Primary

  for removing or collecting chips · CPC title

• Y10T83/7763

  Tool carrier reciprocable rectilinearly · CPC title

• F16L11/115

  having reinforcements not embedded in the wall · CPC title

• Y10T83/773

  Work-support includes passageway for tool [e.g., slotted table] · CPC title

• Y10T83/207

  By suction means · CPC title