Gauge for use with power tools
A powered fastening device includes a nosepiece having a first end and a second end, and defining a channel. A housing is coupled to the first end of the nosepiece, and a handle and a trigger are coupled to the housing. A fastener driving assembly is disposed at least partially within the housing. The nail driving assembly includes a driver blade which is driven into the channel from the housing through the first end to the second end of the nose, to drive a fastener out the second end of the nosepiece and into a workpiece. A fastener loading assembly is connected with the nosepiece, and is configured to provide the fastener to the channel of the nosepiece. A sensor assembly is coupled to at least one of the nosepiece and the housing, and includes a probe for engaging the workpiece. The probe is configured to determine a measure of a structural factor of the workpiece for use in determining an operational setting of the fastening device.
Latest Patents:
- METHODS AND COMPOSITIONS FOR RNA-GUIDED TREATMENT OF HIV INFECTION
- IRRIGATION TUBING WITH REGULATED FLUID EMISSION
- RESISTIVE MEMORY ELEMENTS ACCESSED BY BIPOLAR JUNCTION TRANSISTORS
- SIDELINK COMMUNICATION METHOD AND APPARATUS, AND DEVICE AND STORAGE MEDIUM
- SEMICONDUCTOR STRUCTURE HAVING MEMORY DEVICE AND METHOD OF FORMING THE SAME
This application is a continuation of U.S. patent application Ser. No. 10/959,413, filed Oct. 6, 2004, titled “Gauge for Use With Power Tools,” now pending, which is incorporated herein by reference.
TECHNICAL FIELDThis application relates to a gauge for determining structural factors of a workpiece to be operated upon by a power tool.
BACKGROUNDThe use of power tools is commonplace in numerous locations, from construction work sites to home work shops these devices are employed to accomplish myriad tasks. These power tool devices are further used to perform their functions on a variety of different workpieces, such as wood, metal, plastic, and the like.
Power tools may operate upon different workpieces, which may have different structural factors which may affect the task being performed. Many factors may contribute to the structural makeup of a workpiece. For instance, in a piece of wood the hardness, thickness, and the moisture content of the wood comprise structural factors.
SUMMARYIn an aspect, a powered fastening device includes a nosepiece having a first end and a second end, and defining a channel. A housing is coupled to the first end of the nosepiece, and a handle and a trigger are coupled to the housing. A fastener driving assembly is disposed at least partially within the housing. The nail driving assembly includes a driver blade which is driven into the channel from the housing through the first end to the second end of the nose, to drive a fastener out the second end of the nosepiece and into a workpiece. A fastener loading assembly is connected with the nosepiece, and is configured to provide the fastener to the channel of the nosepiece. A sensor assembly is coupled to at least one of the nosepiece and the housing, and includes a probe for engaging the workpiece. The probe is configured to determine a measure of a structural factor of the workpiece for use in determining an operational setting of the fastening device.
Implementations of this aspect may include one or more of the following. The probe is configured to determine the measure of the structural factor prior to application of the second end of the nosepiece to the workpiece. The probe is configured to penetrate the workpiece to determine the measure of the structural factor of the workpiece. The sensor assembly further includes a spring connected to the probe, a sensor connected to the spring, and a linkage connected to the sensor. A user interface is communicatively coupled with the sensor assembly. A non-contact measurement and alignment system is connected to the housing. The measure of the structural parameter is used to adjust an operational setting of the tool. An adjustment system is coupled to the sensor assembly and configured to adjust an operational setting of the tool in response to the measure of the structural parameter. The structural factor includes at least one of hardness, thickness, and moisture content. The operation setting includes a driving depth of the fastener.
In another aspect, a gauge, for use with a power tool engaging a workpiece includes a housing connected to the power tool, and a sensor assembly disposed in the housing. The sensor assembly includes a probe extending from the housing. The probe is configured to penetrate the workpiece to determine a measure of a structural factor of the workpiece for use in determining an operational setting of the power tool.
Implementations of this aspect may include one or more of the following features. The sensor assembly further includes a spring connected to the probe, a sensor connected to the spring; and a linkage connected to the sensor. A mount connects the housing with the power tool. The housing is removable from the power tool. A user interface provides a readout of information. There is a non-contact measurement and alignment system. An adjustment system is coupled to the sensor assembly and configured to adjust an operational setting of the tool in response to the measure of the structural parameter. The structural factor comprises at least one of hardness, thickness, and moisture content. The gauge is configured for use with a powered fastening device.
Implementations of this aspect may include one or more of the following features.
Advantages may include one or more of the following.
Other advantages and features will be apparent from the description, the drawings, and the claims.
BRIEF DESCRIPTION OF THE DRAWINGS
Referring now to
The gauge 200 includes a gauge housing 202 which may be mounted upon or connected with the nose casting 106. In the current embodiment, the gauge housing 202 further includes a mount 204 which allows for the connection of the gauge housing 202 with the nose casting 106. Further, the connection of the gauge 200 with the nose casting 106 is proximal to the end of the nose casting 106 which contacts a work surface, opposite the connection of the nose casting 106 with the casing 102 of the nail gun 100. It is contemplated that the nose casting 106 may include a mount member which allows for the connection of the gauge 200. Alternatively, the nose casting 106 may include various mounting devices for connecting with the gauge 200. For instance, a first mount device disposed on the nose casting 106 may connect with the mount 204 of the gauge 200 and a second mount device disposed on the nose casting 106 may provide a connection with the gauge housing 202 in a secondary location, alternative to the location of the mount 204.
The gauge 200 further includes a sensor assembly which includes a probe 206 that extends, at least partially, within the gauge housing 202. The probe has a first end 207 which extends from the gauge housing 202 to the outside environment. The probe 206 further includes a second end 209 which is disposed within the gauge housing 202 and connects with a first end 211 of a spring 208, the spring 208 being disposed within the gauge housing 202. The first end 207 of the probe 206 contacts a workpiece for determining at least one structural factor (i.e., hardness, thickness, moisture content) of the workpiece. The first end 211 of the spring 208 connects with the probe 206 and the second end 213 is connected to a sensor 210. The sensor assembly provides a measure of a structural factor (i.e., hardness, thickness, moisture content, and the like) of the workpiece for use in determining the operational settings of the nail gun 100 in the current embodiment. The determination of these structural factors allows the nail gun to be adjusted in terms of the force applied in driving the nail within the workpiece.
In operation, the forces encountered by the first end 207 of the probe 206 are translated through the second end 209 of the probe 206 to the first end 211 of the spring 208. The force exerted upon the spring 208 is translated through the second end 213 of the spring to the sensor 210. The sensor 210, via a connection by a linkage 212 with the nail driving assembly disposed internally within the casing 102 of the nail gun, translates information regarding the forces encountered by the first end 207 of the probe 206 to the nail driving assembly.
The translated information from the sensor assembly to the nail driving assembly may be utilized for determining the operational settings needed for the proper use of the nail gun or may be utilized for establishing the operational settings of the nail gun. In a pneumatic nail gun the operational settings may be established by setting the size of the driving chamber, thus determining the amount of compressed air, which is to be utilized for the driving of a driver blade of the nail driving assembly. Thus, the present invention, if it determines that the workpiece is relatively hard, may have that information translated through the sensor assembly to the nail driving assembly. The nail driving assembly may then automatically set the compressed air pressure to be utilized. Thus, the user may then fire the nail gun and will be utilizing that amount of force as indicated by the hardness factor determined by the gauge. If the nail gun were a combustion nail gun, the nail driving assembly may automatically set the size of the combustion chamber based on the structural factor information received from the sensor assembly.
As shown in
Referring now to
In
The distance shown in
The mounting of the gauge housing 202 to the end of the nose casting 106 is via mount 204. The mount 204 may allow for the connection through the use of various fasteners such as screws, bolts, clips, probe and the like, which will secure the connection of the gauge housing 202 against the nose casting 106. It is contemplated that the nose casting 106 further includes a nose casting mount for connecting with the mount 204 of the gauge housing 202. The nose casting mount or the nose casting itself may include receivers, the number of receivers corresponding to the number of fasteners that may be used to mount the gauge housing 202. It is further contemplated that various mechanical connection assemblies or mechanisms may be utilized to connect the gauge housing 202 with the nose casting 106. For example, a snap fit mechanism may be used to mount the gauge housing 202 to the nose casting 106. Alternative mechanisms such as compression lock mechanisms, latch lock mechanisms, and spring loaded lock mechanisms may be utilized for connecting the gauge housing 202 with the nose casting 106. It is further contemplated that the gauge housing 202 may be integrally connected with the nose casting 106. The integral connection may be established utilizing various construction techniques for the nose casting, welding techniques and/or through the use of various adhesives; such as epoxy compounds, cement adhesives, and the like. The integral connection may provide improved structural integrity of the connection between the gauge housing 202 and the nose casting 106. However, it is contemplated that the various connection mechanisms and fasteners may establish the connection of the gauge housing 202 with nose casting 106, in a sufficiently rigid manner enabling the proper operation of the sensor assembly within the gauge housing 202.
The probe 206 is of a sufficient length to a least partially extend a distance from the gauge housing 202 beneath the plane of the bottom of the nose casting 106. As mentioned previously, the overall length of the probe 206 may vary to provide for the operation of the sensor assembly. In a preferred embodiment, the probe 206 is composed of steel. Alternative materials such as composite material, various metals, wood, and the like may be used to construct the probe 206 of the present invention.
The spring 208 is a compression spring of a sufficient length to connect with the probe 206 and the sensor 210. The spring 208 is a steel compression spring. Alternatively, various metals, composite materials, and the like may be utilized to provide spring 208 with various tensile strengths (spring force). These tensile strengths may be utilized for providing the probe 206 with predetermined resistance factor. The predetermined resistance factor may be set for use based on the various materials with which the nail gun is to be employed. For example, when used primarily for driving nails into framing materials which may comprise a specific type of wood, certain structural hardness factors may be taken into account when selecting the tensile strength of the spring. Therefore, the spring may be preferably optimized for operation with various specific materials. The length of the spring 208 may vary depending on various factors including the size of the gauge housing 202 and the distance between the probe 206 and the sensor 210.
The sensor 210 connects with the second end 213 of the spring 208 and provides for the determination of the structural factor based on the translated force received via the probe 206 engaging with a workpiece. In the preferred embodiment, the sensor 210 is a pressure plate, the pressure plate reacting or being activated by pressure exerted upon it through compression of the spring 208 via engagement against probe 206. It is contemplated various alternative sensor technologies may be employed without departing from the scope and spirit of the present invention. For instance, the sensor 210 may be a sliding scale device, whereby a sliding member may be moved by the force exerted through the spring 208. The sliding member provides a determination of structural factors based on the position it is placed into by engagement with the spring 208.
The linkage 212 provides for the communication between the sensor 210 and the nail driving assembly disposed within the casing 102 of the nail gun 100. The communication including information relating to the measurement of the structural factor of the workpiece as indicated by the sensor 210 readings. The information may be transmitted in various ways as contemplated by those of ordinary skill in the art. For example, the information provided by the sensor 210 may be directly transmitted via a mechanical linkage assembly to the nail driving assembly, wherein the mechanical linkage assembly provides for setting the correct operational force settings of the nail driving assembly. For example, the mechanical linkage may connect with the driving chamber of the pneumatic nail gun 100 and set the size of the driving chamber based on the information received from the sensor assembly. In the alternative, the linkage may be an electrical communication pathway, providing the information to various devices included within the nail gun 100 which allow for the proper force settings of the nail driving assembly to be made. For example, the electrical linkage may connect with a trigger device of the nail gun and control the movement of the trigger device which may translate into control over the amount of compressed air allowed into the driving chamber. It is contemplated that the linkage 212 may provide a connection utilizing various technologies but allowing for the control of the of the operational settings of the nail gun.
In the example where the linkage provides an electrical communication pathway, the nail gun 100 may be further disposed with a user interface. The user interface providing a read-out or display of information gathered from the sensor 210 of the sensor assembly. The user interface allowing the user to visually ascertain the readout information and then provide for the adjustment of the operational force settings of the nail driving assembly of the nail gun 100 to proper operational force settings based on the readout information. The adjustments to the operational force settings may be made automatically by a communicative connection between the user interface and the nail driving assembly of the nail gun. In an alternative embodiment, the user interface may simply be a readout display and the user may then take that information and manually adjust the operational force settings of the nail driving assembly of the nail gun 100 based on the readout information.
The gauge housing 202 may be composed of various materials. In the preferred embodiment, the gauge housing 202 is composed of a steel material. In alternative embodiments gauge housing 202 may be composed of various composite materials, metals, and the like, which provide sufficient structural integrity and rigidity for proper operation of the gauge 200. It is contemplated that the gauge housing 202 may determine the size of the spring 208 to be utilized by the dimensions of an interior cavity 203 of the gauge housing 202. For example, a reduced size interior cavity 203 may require the use of a small spring, an increase in the size of the interior cavity 203 may allow for the use of a larger spring which may provide more play and sensitivity to the sensor assembly. It is contemplated that the internal cavity 203 may be one long continuous cavity, running the length of the housing.
In the alternative, the interior cavity 203 may be established as several cavity sections, or multiple cavity sections. These multiple cavity sections may define different internal diameters. These different internal diameters may allow for proper operation of the gauge 200. For example, a first internal cavity section may have a first inner diameter to accommodate the compression spring 208. A first internal cavity may extend a partial distance down the housing and connect with a second internal cavity. The second internal cavity, being of a sufficient size to allow for the operation of the probe 206 to partially extend through a second internal cavity and engage with the compression spring 208 on the one end and then extend to the outside of the gauge housing 202 for engagement of the probe 206 against the work surface.
It is further contemplated that the gauge housing 602 may include an indicator assembly for indicating the proper operational settings of the nail gun 100 as determined by the identified structural factors of the workpiece. The indicator assembly may be a display which provides a visually ascertainable readout of information. For example, the indicator assembly may include index markers disposed upon the gauge housing, the index markers indicating an operational setting for the nail gun. The index markers may be visually aligned with the second end of the probe when the probe is contacted against a workpiece, thereby, providing an indication of the proper operational settings for the nail gun with respect to the workpiece. Alternatively, the indicator assembly may be an indexing system whereby a pointer correspondingly identifies one of a series of operational setting parameters which correlates with the determined structural factors.
Referring now to
The method of the current invention further contemplates an additional step of the probe depth being indicated by a user interface communicatively linked with the probe. The user interface may provide the capability for making the necessary force setting adjustment for the driving of the nail itself or the user interface may simply provide a readout of the information allowing for the manual adjustment of the force setting by the user.
In the alternative, a method of operating a power tool is contemplated. In a first step the probe of the sensor assembly of the gauge is positioned for engaging against a workpiece. The power tool being positioned to operate upon the workpiece. With the probe engauged against the workpiece, a probe depth is indicated. The probe depth being a distance the probe penetrates within the workpiece, see
Referring generally now to
The gauge 700 includes a gauge housing 702 which connects to the cover 606 via a mount 704, a sensor assembly is disposed within the gauge housing 702 and includes a probe 706 connected to a spring 708. The spring 708 is further connected to a sensor 710. The gauge 700 is similar in all respects to the gauge 200 described previously, except that the mount 704 allows the gauge housing 702 to move, in a sliding manner. Therefore the mount 704 allows for the adjusting of the position of the gauge housing 702 relative to the cover 606. The gauge 700 is disposed upon or connected with the cover 606 in a location which allows the gauge to contact a workpiece when the workpiece is seated upon the base 610 and allow for the gauge 700 via the sensor assembly to determine at least one structural factor (i.e., hardness, moisture content, and the like) of the workpiece. The structural factor determination providing an indication of the correct operational settings for the saw assembly 600. The operational settings may include initial saw blade speed, running saw blade speed, cut through saw blade speed, saw blade teeth configuration, size of saw blade, and the like which may assist in increasing the efficiency of cutting performed by the saw blade 604 of the saw assembly 600.
As shown in
It is further contemplated that the gauge housing 702 may include an indicator assembly for indicating the proper operational settings of the saw assembly 600 as determined by the identified structural factors of the workpiece. The indicator assembly may be a display which provides a visually ascertainable readout of information. Alternatively, the indicator assembly may be an indexing system whereby a pointer correspondingly identifies one of a series of operational setting parameters which correlates with the determined structural factors.
As seen in
Alternatively, the adjustment of the gauge housing 702 along the mount 704 may occur automatically. For instance, a user interface device may be communicatively linked with the gauge 700 including a powered mechanical adjustment system. The user may select the type of adjustment to be made upon the user interface. The adjustment command may then be transmitted to the powered mechanical adjustment system causing the powered mechanical adjustment system to execute the command. It is contemplated that various commands and power mechanical adjustment systems may be employed to provide an automatic adjustment capability to the gauge 700.
A non contact measurement and alignment system 800 includes a housing 802 mounted to the cover 606. In the alternative the housing 802 may be connected in various locations about the saw assembly 600. For example, the housing 802 may be positioned in various locations about the cover 606. Alternatively, the housing 802 may be mounted in various locations upon the saw assembly or the housing 802 may be remotely mounted from the saw assembly. Disposed within the housing 802 is a laser source, i.e. a laser generator. The laser source emitting a laser beam 806 through the lens to an environment outside of the housing 802. The non contact measurement and alignment system 800 further includes a detector which detects the striking of an incident laser beam emitted from the laser source, off various surfaces. The detector may detect laser light being reflected back from surfaces such as the base 610 or from a workpiece seated upon the base 610. It is contemplated that the detector is capable of detecting minute amounts of electromagnetic radiation from a laser beam.
Referring to
In step 1025, the gauge is employed to determine at least one structural factor of the workpiece. For instance, the gauge may determine the hardness of the workpiece or moisture content of the workpiece. In step 1030, the hardness or moisture is determined. In step 1035, the saw blade speed is determined based on the determined structural factor, the hardness or moisture of the workpiece. In step 1040, the descent of the saw blade is begun in preparation for the cutting operation. In step 1045, the blade speed is adjusted prior to the cut through which may assist in increasing the useful lifespan of the saw blade. In step 1050, the cut is completed, then in step 1055, the saw blade is returned to its index/home position.
It is understood that the specific order or hierarchy of steps in the methods disclosed are examples of exemplary approaches. Based upon design preferences, it is understood that the specific order or hierarchy of steps in the method can be rearranged while remaining within the scope and spirit of the present invention. The accompanying method claims present elements of the various steps in a sample order, and are not necessarily meant to be limited to the specific order or hierarchy presented.
It is believed that the present invention and many of its attendant advantages will be understood by the forgoing description. It is also believed that it will be apparent that various changes may be made in the form, construction and arrangement of the components thereof without departing from the scope and spirit of the invention or without sacrificing all of its material advantages. The form herein before described being merely an explanatory embodiment thereof. It is the intention of the following claims to encompass and include such changes.
Claims
1. A powered fastening device, comprising:
- a nosepiece having a first end and a second end, and defining a channel;
- a housing coupled to the first end of the nosepiece;
- a handle and a trigger coupled to the housing;
- a fastener driving assembly disposed at least partially within the housing, the nail driving assembly including a driver blade which is driven into the channel from the housing through the first end to the second end of the nose, to drive a fastener out the second end of the nosepiece and into a workpiece;
- a fastener loading assembly connected with the nosepiece, the fastener loading assembly configured to provide the fastener to the channel of the nosepiece; and
- a sensor assembly coupled to at least one of the nosepiece and the housing, the sensor assembly including a probe for engaging the workpiece,
- wherein the probe is configured to determine a measure of a structural factor of the workpiece for use in determining an operational setting of the powered fastening device.
2. The powered fastening device of claim 1, wherein the probe is configured to determine the measure of the structural factor prior to application of the second end of the nosepiece to the workpiece.
3. The powered fastening device of claim 1, wherein the probe is configured to penetrate the workpiece to determine the measure of the structural factor of the workpiece.
4. The powered fastening device of claim 1, wherein the sensor assembly further comprises:
- a spring connected to the probe;
- a sensor connected to the spring; and
- a linkage connected to the sensor.
5. The powered fastening device of claim 1, further comprising a user interface communicatively coupled with the sensor assembly.
6. The powered fastening device of claim 1, further comprising a non-contact measurement and alignment system connected to the housing.
7. The powered fastening device of claim 1, wherein the measure of the structural parameter is used to adjust an operational setting of the tool.
8. The powered fastening device of claim 1, further comprising an adjustment system coupled to the sensor assembly and configured to adjust an operational setting of the tool in response to the measure of the structural parameter.
9. The powered fastening device of claim 1, wherein the structural factor comprises hardness.
10. The powered fastening device of claim 1, wherein the structural factor comprises thickness.
11. The powered fastening device of claim 1, wherein the structural factor comprises moisture content.
12. The powered fastening device of claim 1, wherein the operational setting comprises a driving depth of the fastener.
13. A gauge, for use with a power tool engaging a workpiece, comprising:
- a housing connected to the power tool;
- a sensor assembly disposed in the housing, the sensor assembly including a probe extending from the housing,
- wherein the probe is configured to penetrate the workpiece to determine a measure of a structural factor of the workpiece for use in determining an operational setting of the power tool.
14. The gauge of claim 13, the sensor assembly further comprising:
- a spring connected to the probe;
- a sensor connected to the spring; and
- a linkage connected to the sensor.
15. The gauge of claim 13, further comprising a mount which connects the housing with the power tool.
16. The gauge of claim 13, wherein the housing is removable from the power tool.
17. The gauge of claim 13, further comprising a user interface for providing a readout of information.
18. The gauge of claim 13, further comprising an adjustment system coupled to the sensor assembly and configured to adjust an operational setting of the tool in response to the measure of the structural parameter.
19. The gauge of claim 13, wherein the structural factor comprises at least one of hardness, thickness, and moisture content.
20. The gauge of claim 13, wherein the gauge is configured for use with a powered fastening device.
Type: Application
Filed: Jun 6, 2007
Publication Date: Dec 27, 2007
Applicant:
Inventor: Kathy DeKeyser (Jackson, TN)
Application Number: 11/810,484
International Classification: G01N 3/00 (20060101); B27F 7/00 (20060101);