Hand-held working tool

• US 7,036,703 B2
• Filed: 01/27/2004
• Issued: 05/02/2006
• Est. Priority Date: 01/27/2003
• Status: Active Grant

• Current Assignee: Hilti Aktiengesellschaft (Hilti Martin Family Trust)
• Original Assignee: Hilti Aktiengesellschaft (Hilti Martin Family Trust)
• Inventors: Grazioli, Mario, Keck, Joachim
• Primary Examiner(s): Smith, Scott A.
• Assistant Examiner(s): Weeks, Gloria R.
• Application Number:
  US10/766,259
• Publication Number:
  US 20050000998A1
• Time in Patent Office: 826 Days
• Field of Search: 173/4, 173/9, 173/177, 173/2, 173/171, 173/176, 173/181, 227/10
• US Class Current: 227/10
• CPC Class Codes: B25B 27/0085 explosive-powered
• CPC Class Codes: B25C 1/08 operated by combustion pressure
• CPC Class Codes: B25C 1/10 generated by detonation of a cartridge
• CPC Class Codes: B25D 17/24 Damping the reaction force resiliently mounted handles B25D17/043; dampers in connections of hammers to backhoes E02F3/966
• CPC Class Codes: B25D 2250/221 Sensors
• CPC Class Codes: B25F 5/00 Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
• CPC Class Codes: B25F 5/021 with guiding devices guiding devices for hand tools on stands or supports B25H1/0078
• CPC Class Codes: G01H 3/14 Measuring mean amplitude; Measuring mean power; Measuring time integral of power

Abstract

The present invention relates to a hand-held working tool, such as a setting device used for driving fastening elements such as nails, bolts, pins and the like into a surface, or an at least partially percussive hand-held tool having a housing part (11) and a working mechanism such as a setting or striking mechanism arranged inside the housing of the device and having at least one sensing device (17) for sensing acceleration forces occurring during a setting or striking pulse as well as a handle. For improving this type of hand-held working tool (10) an interface (30) for data communication and data output is arranged on the hand-held working tool.

Claims

1. Hand-held working tool for driving fastening elements including one of nails, bolts, and pins into a surface and an at least partially striking hand-held tool comprising:

a housing (11) including a work mechanism including one of a setting mechanism and a striking mechanism;

at least one sensing device (17) for detecting acceleration forces a(t) occurring during one of a setting and a striking impulse; and

a handle part, wherein an interface (30, 31) for at least one of data communication and data output is arranged on said hand-held tool, and wherein the sensing device (17) includes at least one discriminating means (19) for differentiating between impulses caused by said one of a setting and a striking impulse and other acceleration forces.

2. The hand-held working tool of claim 1, wherein said hand-held device (10) has an evaluation and storage mechanism (20) for processing and storing data (a(t), A, t₀, T) detected by said sensing device (17).

3. The hand-held working tool of claim 1, wherein the sensing device (17) comprises at least one acceleration sensor (18).

4. The hand-held working tool of claim 3, wherein the sensing device (17) is arranged on said handle (16) of the hand-held working tool (10, 10.1).

5. The hand-held working tool of claim 1, wherein the interface (30) of the hand-held working tool (10, 10.1) comprises an external interface (11) for one of data input and data output that has a device (13) on the hand-held working tool (10, 10.1) for data communication with the interface (30) for data communication.

6. The hand-held working tool of claim 5, where said external interface (110) includes an evaluation and storage means (120) for processing and storage of the data detected by the sensing device (17).

7. The hand-held working of claim 5, wherein said external interface (110) has an optical data display unit (131), operating elements (132), and signal means (133).

8. The hand-held working tool of claim 7, wherein said hand-held working tool (10) has an optical data display unit (31.1), operating elements (32), and signal means (33).

9. The hand-held working tool of claim 8, wherein the evaluation and storage unit (20, 120) includes a microprocessor (21, 121) and at least one algorithm (22, 122) for detecting the physiological acceleration load A absorbed by an operator, from the detected data (a(t), A, t₀, T).

10. The hand-held working tool of claim 9, wherein an input means (27) is present at least for entry of user-specific identification characteristics.

11. The hand-held working tool of claim 10, wherein the external interface (110) comprises user-specific identification characteristics that can be communicated.

12. The hand-held working tool of claim 11, wherein a means (23, 123) for initializing the microprocessor (21, 121) for exiting a sleep-mode of said sensing device (17) is provided.

13. The hand-held working tool of claim 12, wherein one of the sensing device (17) and the evaluation and storage means (20, 120) contains a means (24, 124) for real-time measurements.

14. The hand-held working tool of claim 12, wherein said storage means (25, 125) comprises storage areas (26, 126) that are each allocated to a specific operator via said operator-specific identification characteristics.

15. An interface unit, for use with the hand-held working tool (10, 10.1) of claim 14, where in the external interface (110) acts as a device (13) for data communication with the interface (30) for data communication with said hand-held working tool (10, 10.1).

16. The interface unit of claim 15, wherein the external interface (110) comprises an evaluation and storage means (120) for processing and storing data (a(t), A, t₀, T) detected by the sensing device (17).

17. The interface unit of claim 16, wherein the evaluation and storage means (12) comprises a microprocessor (121) and at least one algorithm (22, 122) for the detection of said physiological acceleration loads A absorbed by the operator, from the given data (a(t), A, t₀, T).

18. The interface of claim 17, wherein the external interface (110) comprises user-specific identification characteristics that can be communicated.

19. The interface unit of claim 17, wherein a means (123) for initializing the microprocessor (121) for exiting a sleep-mode of an initialization impulse (123) is provided.

20. The interface unit of claim 19, wherein at least one of the external interface (110) and the evaluation and storage means (12) comprises a means for real-time measurements.

21. The interface unit of claim 20, wherein the external interface (110) is a vibration load meter that can store data (a(t), A, t₀, T) relating to different operators using operator-specific identification characteristics.

22. The interface unit of claim 15, wherein the external interface (110) has an optical data display unit (131), operating means (132), and signal means (133).

23. The hand-held working tool of claim 1, wherein the sensing device (17) further includes a pressure sensor (19.1) for gaseous media for the detection of gas compression waves released by a setting operation in the working mechanism (12).