Power tools
First Claim
1. A tightening tool comprising:
- a drive source, an anvil, a hammer coupled to the drive source and adapted to strike the anvil and thereby rotate the anvil, a sound sensor adapted to detect impact sounds generated when the hammer strikes the anvil, the sound sensor comprising a receiver adapted to selectively convert sounds within a narrow frequency range into electric signals, wherein the impact sounds fall within the narrow frequency range and a processor coupled to the sound sensor and the drive source, wherein the processor controls the operation of the drive source based upon on a number of impact sounds detected by the detecting means.
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Accused Products
Abstract
Power tools are taught that may include, for example, means for detecting impact sounds generated, e.g. by a hammer strikes an anvil or by oil pulse from an oil unit. The detecting means may include a receiver (30) adapted to selectively convert sound within a narrow frequency range into electric signals. Preferably, the impact sounds fall within the narrow frequency range of the receiver (30). A processor 38 may be utilized to control the motor (22) in order to stop the rotation of the hammer when a predetermined number of impact sounds has been detected by the detecting means. In addition or in the alternative, various means for setting various operating conditions are taught, including dials 34, sound sensors 30, keypads and remote control devices 250. Further, means for performing maintenance condition status checks are taught.
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Citations
77 Claims
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1. A tightening tool comprising:
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a drive source, an anvil, a hammer coupled to the drive source and adapted to strike the anvil and thereby rotate the anvil, a sound sensor adapted to detect impact sounds generated when the hammer strikes the anvil, the sound sensor comprising a receiver adapted to selectively convert sounds within a narrow frequency range into electric signals, wherein the impact sounds fall within the narrow frequency range and a processor coupled to the sound sensor and the drive source, wherein the processor controls the operation of the drive source based upon on a number of impact sounds detected by the detecting means. - View Dependent Claims (2, 3, 4, 5)
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6. A tightening tool comprising:
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an anvil, a hammer for impacting the anvil so that the anvil rotates, a sound sensor adapted to selectively convert impact sounds within a narrow frequency range into electric signals and to attenuate sounds outside the narrow frequency range, a comparator adapted to compare the level of the electric signals generated by the sound sensor with a reference level and a processor programmed to count a number of impacts based upon the number of times that the electrical signal exceeds the reference level and to control a drive source to rotate the hammer based upon the detected number of impacts. - View Dependent Claims (7, 8, 9, 10)
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11. An apparatus comprising:
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an anvil, a hammer adapted to strike the anvil in order to generate a relatively large torque and a piezoelectric material proximally disposed to the hammer and anvil, wherein the piezoelectric material selectively detects impact sounds generated by the hammer striking the anvil. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A power tool comprising:
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an anvil, a hammer adapted to intermittently strike the anvil in order to generate increased torque, a drive source adapted to rotate the hammer, a switch coupled to the drive source in order and adapted to couple the drive source to a power supply, means for setting an operating condition for the power tool and a processor coupled to the setting means, the processor receiving information concerning a set operating condition and controlling the drive source according to the set operating condition after the switch has been actuated. - View Dependent Claims (23, 24)
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25. A power tool adapted to be controlled according to a set operating condition, comprising
means for detecting physical information and for outputting an electric signal based upon detected physical information, means for distinguishing the electric signal received from the detecting means from an electric signal that corresponds to the set operating condition and means for setting the operating condition based upon the electric signal when the electric signal is identified as the electric signal for setting the operating condition,
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28. A power tool that is controlled based on a set operating condition comprising:
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means for detecting physical information and generating an electric signal in response to the detected physical information, a memory storing a operating condition setting program, a switch adapted to start the operating condition setting program and means for setting the operating condition in response to the electric signal outputted by the detecting means and in accordance with the operating condition setting program. - View Dependent Claims (29)
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30. A power tool comprising:
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means for detecting physical information and generating an electric signal in response to detected physical information, a memory storing an operating condition setting program, means for inputting operating condition parameters, a processor adapted to execute the operating condition setting program in order to input operating condition parameters, a switch coupled to the drive source in order and adapted to couple the drive source to a power supply, means for setting an operating condition for the power tool;
a processor coupled to the setting means, the processor receiving information concerning a set operating condition and controlling the drive source according to the set operating condition after the switch has been actuated.
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31. A power tool comprising:
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means for generating an elevated torque, wherein the generating means emits impact sounds when the elevated torque is generated, wherein the impact sounds fall within a narrow frequency range and means for detecting impact sounds within the narrow frequency range and for attenuating frequencies outside the narrow range. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40)
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41. A power tool comprising means for driving a fastening object, characterized in further comprising:
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means for setting an operating condition for the power tool;
a processor coupled to the setting means, the processor receiving information concerning a set operating condition and controlling the driving means according to the set operating condition. - View Dependent Claims (42, 43, 44, 45, 46, 47, 48, 49, 50)
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51. A power tool comprising:
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means for storing actual use information concerning one or more components of the power tool, means for comparing the stored actual use information to a pre-set maintenance level and means for determining whether the pre-set warning level has been exceeded. - View Dependent Claims (52, 53, 54, 55, 56, 57, 58, 59)
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60. A method of operating a power tool comprising:
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storing a maintenance condition level in a memory, storing actual use information concerning the power tool in a memory, using a processor to compare the actual use information to the maintenance condition level. - View Dependent Claims (61, 62, 63, 64, 65, 66, 67)
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68. A power tool comprising:
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a memory adapted to store actual use information concerning one or more components of the power tool and a processor programmed to compare the stored actual use information to a pre-set maintenance level and determine whether the pre-set warning level has been exceeded. - View Dependent Claims (69, 70, 71, 72, 73, 74, 75, 76, 77)
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Specification