Driving device

Patent metadata

Field	Value
Publication number	US-9566700-B2
Application number	US-201113703870-A
Country	US
Kind code	B2
Filing date	Jun 15, 2011
Priority date	Jun 15, 2010
Publication date	Feb 14, 2017
Grant date	Feb 14, 2017

Abstract

According to one aspect of the application, a tool for driving a fastening element into an underlying surface comprises an energy transmission element for transmitting energy to the fastening element. The energy transmission element is preferably movable between an initial position and a setting position, the energy transmission element being situated in the initial position before the driving process and in the setting position after the driving process.
According to another aspect of the application, the device comprises a mechanical energy accumulator for storing mechanical energy. The energy transmission element is then suitable particularly for transmitting energy from the mechanical energy accumulator to the fastening element.

First claim

What is claimed:

1. A tool for driving a fastening element into an underlying surface, the tool comprising an energy transmission element, movable between an initial position and a setting position, for transferring energy to the fastening element; a clutch device for temporarily holding the energy transmission element in the initial position and releasing the energy transmission element that then moves to the setting position; and, an energy transmission device for conveying the energy transmission element from the setting position to the initial position, the tool comprising a clutch damping element that is suitable for damping a residual relative motion between the energy transmission element and the clutch device that is present after the clutch device is closed when the energy transmission element is coupled to the clutch device, the tool further comprising a housing in which the energy transmission element, the clutch device and the energy transmission device are housed, wherein the clutch damping element is arranged on the housing or a part of the tool fixedly connected to the housing.

2. The tool according to claim 1 , wherein the clutch damping element is arranged on the clutch device.

3. The tool according to claim 2 , wherein the clutch damping element is fixed on the clutch device.

4. The tool according to claim 2 , wherein the energy transmission device comprises a motion converter for converting a rotational movement into a linear movement, with a rotational drive and a linear output drive, and wherein the clutch damping element is arranged on the linear output drive.

5. The tool according to claim 1 , wherein the clutch damping element is arranged on the energy transmission element.

6. The tool according to claim 5 , wherein the clutch damping element is fixed on the energy transmission device.

7. The tool according to claim 5 , wherein the energy transmission device comprises a motion converter for converting a rotational movement into a linear movement, with a rotational drive and a linear output drive.

8. The tool according to claim 1 , wherein the energy transmission device comprises a motion converter for converting a rotational movement into a linear movement, with a rotational drive and a linear output drive, and wherein the clutch damping element is arranged on the linear output drive.

9. The tool according to claim 8 , wherein the motion converter comprises a spindle drive with a spindle and a spindle nut arranged on the spindle.

10. The tool according to claim 9 , wherein the linear output drive is formed by the spindle nut.

11. The tool according to claim 9 , wherein the linear output drive is formed by the spindle.

12. The tool according to claim 1 , further comprising a mechanical energy accumulator for storing mechanical energy, the energy transmission element being suitable for transmitting energy from the mechanical energy accumulator to the fastening element, and the clutch damping element being formed by the mechanical energy accumulator.

13. The tool according to claim 1 , wherein the clutch damping element comprises an energy accumulator element that is suitable for storing energy from the relative motion between the energy transmission element and the clutch device when the energy transmission element is coupled to the clutch device, and for outputting the stored energy to the energy transmission device.

14. The tool according to claim 1 , wherein the clutch damping element comprises a clutch damping spring.

15. The tool according to claim 14 , wherein the clutch damping spring is constructed as a helical spring or a spiral spring.

16. The tool according to claim 14 , wherein the clutch damping spring comprises an elastomer spring.

17. The tool according to claim 1 , wherein the clutch damping element comprises an energy absorbing element that is suitable for absorbing energy from the relative motion between the energy transmission element and the clutch device when the energy transmission element is coupled to the clutch device.

18. The tool according to claim 1 , wherein the clutch damping element is subjected to a compressive force when the energy transmission element is coupled to the clutch device.

19. The tool according to claim 1 , wherein the clutch damping element is fixed to the housing.

Assignees

• Mandel Roland
• Bertsch Klaus
• Fielitz Harald
• Hilti Ag

Inventors

• Mandel Roland
• Bertsch Klaus
• Fielitz Harald

Classifications

• B25C1/00

  Hand-held nailing tools (hammers per se B25D; nailing machines B27F7/02); Nail feeding devices · CPC title

• B25C1/06 Primary

  operated by electric power · CPC title

• B25F5/006

  Vibration damping means · CPC title