Patent Application
20100008739
1. Field of the Invention
The present invention relates to a power tool, and more particularly to a power tool combination including two or more tool members selectively and changeably attached to a power driving tool for allowing the user to easily and readily operate the power tool combination.
2. Description of the Prior Art
Typical power tools comprise a primary spindle or shaft rotatably supported in a housing and coupled to a motor driving means with a gearing mechanism, and a chuck device attached to a free end of the shaft for gripping or attaching a driven tool member for allowing the driven tool member to be rotated or driven by the motor driving means.
For example, U.S. Pat. No. 4,098,351 to Alessio discloses one of the typical power tools also comprising a chuck device attached to a free end of an output spindle which is coupled to a motor driving means with a gearing transmission for gripping or engaging with a driven tool member and for rotating or driving the driven tool member.
However, the chuck device is required to be rotated or threaded or unthreaded relative to the output spindle in order to grip or engage with the driven tool member, and it is time consuming and inconvenient to rotate or thread or unthread the chuck device relative to the output spindle.
U.S. Pat. No. 5,313,680 to Ringler discloses another typical power tool combination comprising a drilling tool and a wrenching tool selectively coupled or secured together, and an intermediate housing for attaching or supporting the drilling tool and the wrenching tool.
However, similarly, the intermediate housing is also required to be engaged with the chuck device after the chuck device is rotated or threaded or unthreaded relative to the output spindle such that it is also time consuming and inconvenient to rotate or thread or unthread the chuck device relative to the output spindle and to attach the intermediate housing to the chuck device.
U.S. Pat. No. 5,797,670 to Snoke et al. discloses a further typical power tool comprising a drilling tool attached to a distal end of an output spindle or a main body with a chuck device.
However, similarly, the chuck device is also required to be rotated or threaded or unthreaded relative to the output spindle in order to grip or engage with the drilling tool. In addition, such a typical power tool may only be used to rotate or drive the drilling tool, but may not be used to rotate or drive the other driven tool members.
The present invention has arisen to mitigate and/or obviate the afore-described disadvantages of the conventional power tool combinations.
The primary objective of the present invention is to provide a power tool combination including two or more tool members selectively and changeably attached to a power driving tool for allowing the user to easily and readily operate the power tool combination.
In accordance with one aspect of the invention, there is provided a power tool combination comprising a power driving device including a chuck device attached to a barrel for engaging with a driven tool member, and a control ferrule engaged onto the barrel for controlling the chuck device to engage with and to grip the driven tool member, and including a non-circular member, and a tool device including a housing having a bore formed therein for receiving the driven tool member, and having a compartment formed therein for receiving the barrel, and having a non-circular engaging member provided in the housing for engaging with the non-circular member and for allowing the housing to be rotated and driven by the non-circular member of the power driving device.
The tool device includes a tool element attached to the housing. The tool device includes a securing device provided on the housing for engaging with the tool element and for attaching the tool element to the housing.
The tool element includes an orifice formed therein, and a latch pin is slidably attached to the housing and engageable with the orifice of the tool element for latching the tool element to the housing and for preventing the tool element from being rotated relative to the housing.
A rotary member is further provided and rotatably attached onto the housing and engageable with the latch pin for selectively forcing the latch pin to engage with the orifice of the tool element and to latch the tool element to the housing.
The rotary member includes an inclined surface formed therein for engaging with the latch pin and for forcing the latch pin to engage with the orifice of the tool element by rotating the rotary member relative to the housing. A spring member is further provided and engaged with the housing and the latch pin for biasing the latch pin away from the tool element.
The housing includes a retaining device for detachably retaining the housing to the barrel and the non-circular member of the power driving device. The housing includes an inclined slot formed therein, the retaining device includes a sleeve attached onto the housing, and a spring member disposed between the housing and the sleeve and having an end portion engaged into the inclined slot of the housing for engaging with the barrel and for anchoring the housing to the barrel of the power driving device.
The barrel includes a peripheral recess formed in an outer peripheral portion thereof for engaging with the end portion of the spring member. The housing includes a detent slidably attached to the housing and engageable with the barrel, and the retaining device includes a sleeve attached onto the housing for engaging with the detent and for forcing the detent to selectively engage with the barrel.
A retaining ring is further provided and attached to the housing, and the sleeve includes two ratchet grooves formed therein for engaging with the retaining ring and for anchoring the sleeve to the housing at selected positions. The sleeve includes a depression formed therein for selectively receiving and engaging with the detent and for allowing the detent to be selectively disengaged from the barrel.
The housing includes an engaging hole formed in a free end portion thereof for engaging with a driven tool element. The housing includes a detent slidably attached to the housing and engageable with the driven tool element, and a control ferrule attached onto the housing for engaging with the detent and for forcing the detent to selectively engage with the driven tool element.
The control ferrule includes a depression formed therein for selectively receiving and engaging with the detent and for allowing the detent to be disengaged from the driven tool element. The control ferrule includes a magnetic member for attracting and retaining a driven member to the driven tool element and the housing.
The housing includes an inclined slot formed therein, a control ferrule attached onto the housing, and a spring member disposed between the housing and the control ferrule and having an end portion engaged into the inclined slot of the housing for engaging with the driven tool element and for anchoring the driven tool element to the housing.
Further objectives and advantages of the present invention will become apparent from a careful reading of the detailed description provided hereinbelow, with appropriate reference to the accompanying drawings.
Referring to the drawings, and initially to
The chuck device 11 may thus be actuated or operated by the control ferrule 13 and/or the barrel 12 and the non-circular member 14 to grip or grasp the driven tool member 8, or to release the driven tool member 8 selectively. The other driven tool members, such as the wrenching tools, the screw driving tools (not shown) or the like may also be selectively attached to or engaged with the chuck device 11. The chuck device 11 is normally attached or coupled to an output spindle (not shown) which is coupled to a motor driving means (not shown) with a gearing transmission (not shown) for being rotated or driven by the motor driving means. The above-described structure is typical and will not be described in further details. The barrel 12 includes a peripheral recess 15 formed in the outer peripheral portion thereof.
The power tool combination 1 in accordance with the present invention further comprises one or more tool devices 2 to be selectively and changeably attached to or engaged with the power driving device 10 for being rotated or driven by the power driving device 10. For example, as shown in
The housing 20 further includes an inclined slot 25 formed in the one end portion 23 thereof, and includes an attaching or engaging or securing means or device 26 attached to or formed in the other end portion 27 thereof for engaging with or for attaching a tool element 30, such as a circular saw blade 30 and for allowing the tool element or circular saw blade 30 to be rotated or driven by the power driving device 10. A sleeve 31 is rotatably attached onto the housing 20, and a spring member 32 is disposed or received or engaged between the housing 20 and the sleeve 31, and includes an end portion 33 engaged into the inclined slot 25 of the housing 20 for engaging with the peripheral recess 15 of the barrel 12 and for anchoring or positioning or securing the housing 20 to the barrel 12 of the power driving device 10.
The end portion 33 of the spring member 32 may be moved or disengaged from the peripheral recess 15 of the barrel 12 by moving the sleeve 31 relative to the housing 20 for allowing the housing 20 to be easily engaged onto the barrel 12 and the non-circular member 14 and to be quickly latched or anchored or secured to the barrel 12 and the non-circular member 14 by engaging the end portion 33 of the spring member 32 into the peripheral recess 15 of the barrel 12, and thus for allowing the tool device 2 to be selectively and changeably and easily and quickly attached to or engaged with the power driving device 10 and to be rotated or driven by the power driving device 10.
As shown in
The rotary member 35 includes one or more (such as two) inclined surfaces 36 formed therein, and one or more (such as two) spring-biased latch pins 37 are slidably attached to the housing 202 and engageable with the orifices 34 of the tool element 301 for latching or anchoring or positioning or securing the tool element 301 to the housing 202 and for preventing the tool element 301 from being rotated relative to the housing 202. A spring member 38 is disposed or engaged with the housing 202 and each of the latch pins 37 for biasing the latch pin 37 away from the tool element 301, and the inclined surfaces 36 of the rotary member 35 are engaged with the latch pins 37 for selectively moving or biasing or forcing the latch pins 37 to engage with the orifices 34 of the tool element 301 selectively.
As shown in
A detent 41 is slidably attached to or engaged with the housing 204 and engageable with the driven tool element 80 for detachably anchoring or positioning or securing the driven tool element 80 to the housing 20. Another control ferrule 50 is slidably attached or engaged onto the other end portion 27 of the housing 204 for engaging with the detent 41 and for forcing the detent 41 to selectively engage with the driven tool element 80, and includes a depression 51 formed therein for selectively receiving or engaging with the detent 41 and for allowing the detent 41 to be disengaged from the driven tool element 80, and includes a magnetic member 52 for attracting and retaining a screw or driven member 88 to the driven tool element 80 and the housing 204.
As shown in
A further control ferrule 501 is also slidably attached or engaged onto the other end portion 27 of the housing 206, and a further spring member 53 is disposed or received or engaged between the housing 206 and the control ferrule 501 and includes an end portion 54 engaged into an inclined slot 291 of the housing 206 for engaging with the driven tool element 80 and for detachably anchoring or positioning or securing the driven tool element 80 to the housing 206, the housing 206 may further include a still further spring member 55 disposed or received or engaged in the housing 206 and engaged with the driven tool element 80 for selectively biasing the driven tool element 80 out of the other end portion 27 of the housing 206.
As shown in
One or more (such as two) detents 60 are slidably attached to or engaged with the housing 208 and engageable with the peripheral recess 15 of the barrel 12 and for detachably anchoring or positioning or securing the housing 208 to the barrel 12. Another sleeve 70 is rotatably attached onto the housing 208 for engaging with the detents 60 and for forcing the detents 60 to selectively engage with the barrel 12, and includes one or more depressions 71 formed therein for selectively receiving or engaging with the detents 60 and for allowing the detents 60 to be disengaged from the barrel 12, and includes two ratchet grooves 72, 73 formed therein for receiving or engaging with a retaining ring 61 which may anchor or positioning the sleeve 70 to the housing 208 at selected locations or positions. The housing 208 may further include a magnetic member 62 disposed therein for attracting and retaining a screw driver bit 80 to the housing 208.
In operation, as shown in
Accordingly, the power tool combination in accordance with the present invention includes two or more tool members selectively and changeably attached to a power driving tool for allowing the user to easily and readily actuate or operate the power tool combination.
Although this invention has been described with a certain degree of particularity, it is to be understood that the present disclosure has been made by way of example only and that numerous changes in the detailed construction and the combination and arrangement of parts may be resorted to without departing from the spirit and scope of the invention as hereinafter claimed.
