Tool with counter device

Patent metadata

Field	Value
Publication number	US-12090616-B2
Application number	US-202217582178-A
Country	US
Kind code	B2
Filing date	Jan 24, 2022
Priority date	Feb 2, 2021
Publication date	Sep 17, 2024
Grant date	Sep 17, 2024

Abstract

A tool includes a tool head with a utilization surface. The tool also includes a counter device responding to an impact applied to the utilization surface. The counter device has a memory, a microcontroller controlling operation of the counter device, an indicator, and an energizer connected to the microcontroller, which in response to the impact applied to the utilization surface, produces an electric current energizing the counter device to make a modification in the memory and provide information about the cumulative count of impacts in the memory via the indicator to a user.

First claim

What is claimed is:

1. A tool being a hammer, axe, or shovel, comprising a tool head with more than one utilization surface,
wherein the tool further comprises a counter device responding to an impact applied to each of the utilization surfaces, wherein the counter device comprises:
a memory,
a microcontroller controlling operation of the counter device,
an indicator,
an energizer connected to the microcontroller, which in response to the impact applied to each of the utilization surfaces, produces an electric current energizing the counter device to make a modification in the memory and provide information about the cumulative count of impacts in the memory via the indicator to a user;
wherein the counter device is sealed inside an at least partially hollow handle of the tool in such a way that the energizer is located between the tool head and the middle of the handle.

2. A tool according to claim 1 , wherein the energizer is a piezo energy harvester converting kinetic energy in the form of impact into electrical energy, wherein the piezo energy harvester comprises
a piezoelectric beam,
a beam holder connected to the first end of piezoelectric beam,
wherein the piezoelectric beam, in response to the impact, bends and produces the electric current.

3. A tool according to claim 1 , wherein the energizer is an electromagnetic energy harvester converting flow energy into electrical energy by electromagnetic induction, wherein the electromagnetic energy harvester comprises
a housing,
a spring with first end connected to the inner wall of the housing, a magnet connected to the second end of the spring,
a coil,
wherein the magnet, in response to the impact, moves in relation to the coil and produces the electric current.

4. A tool according to claim 1 , wherein the memory is a non-volatile memory.

5. A tool according to claim 1 , wherein the indicator provides a visual signal.

6. A tool according to claim 1 , wherein the indicator is a transmitter and provides wireless access to the information in the memory.

7. A tool according to claim 6 , wherein the transmitter is one of NFC, RFID or Bluetooth systems.

8. A percussive or hand-powered striking tool according to claim 1 , wherein the information includes an identification of the tool and the cumulative count of impacts which has been applied to the utilization surface of said tool.

9. A tool according to claim 1 , wherein the counter device makes the modification by adding to the cumulative count if the impact is from along a tangent to trajectory of the tool head.

10. A tool according to claim 1 , wherein the counter device makes the modification by adding to the cumulative count when the impact force reaches above a predetermined value.

11. A tool according to claim 1 , wherein the tool further comprises a specific optical identification mark of the tool on the visible surface of the tool, wherein the optical identification mark is linked to an URL with the access to the information in the memory.

12. A percussive or hand-powered striking tool according to claim 1 , wherein the tool is a hand-operated percussive tool.

13. A tool according to claim 1 , wherein the counter device is compressed within the at least partially hollow handle for rigid attachment.

14. A tool according to claim 1 , wherein the counter device further comprises a string or a wire such that a user can remove the counter device from the at least partially hollow handle.

15. A tool according to claim 1 , wherein the indicator comprises a light or a display located on the tool which will turn on in response to an impact.

16. A tool according to claim 1 , wherein the indicator comprises a sound source which will emit a sound in response to an impact.

17. A tool being a hammer, axe, or shovel, comprising:
a tool head with more than one utilization surface;
an at least partially hollow handle coupled to the tool head;
a counter device responding to an impact applied to each of the utilization surfaces and compressed within the at least partially hollow handle for rigid attachment, wherein the counter device comprises:
a memory,
a microcontroller controlling operation of the counter device,
an indicator, and
an energizer connected to the microcontroller, which in response to the impact applied to each of the utilization surfaces, produces an electric current energizing the counter device to make a modification in the memory and provide information about the cumulative count of impacts in the memory via the indicator to a user.

18. A tool according to claim 17 , wherein the energizer is a piezo energy harvester converting kinetic energy in the form of impact into electrical energy, wherein the piezo energy harvester comprises
a piezoelectric beam,
a beam holder connected to the first end of piezoelectric beam,
wherein the piezoelectric beam, in response to the impact, bends and produces the electric current.

19. A tool according to claim 17 , wherein the energizer is an electromagnetic energy harvester converting flow energy into electrical energy by electromagnetic induction, wherein the electromagnetic energy harvester comprises
a housing,
a spring with first end connected to the inner wall of the housing, a magnet connected to the second end of the spring,
a coil,
wherein the magnet, in response to the impact, moves in relation to the coil and produces the electric current.

Assignees

• Fiskars Finland Oy Ab

Inventors

• Heine Mikko
• Rusanen Niko
• Sokka Mika

Classifications

• G01D5/2006

  by influencing the self-induction of one or more coils (G01D5/22 takes precedence) · CPC title

• B25D2250/221

  Sensors · CPC title

• B25D2250/205

  for torque · CPC title

• B25D2250/121

  Housing details · CPC title

• B25D2250/091

  Electrically-powered tool components · CPC title